This is a live mirror of the Perl 5 development currently hosted at https://github.com/perl/perl5
Patch 3945 was a bit overkeen - the effective parameter to cando() and
[perl5.git] / proto.h
diff --git a/proto.h b/proto.h
index 9f5ced8..2839a18 100644 (file)
--- a/proto.h
+++ b/proto.h
 START_EXTERN_C
 
 #if defined(PERL_IMPLICIT_SYS)
-PERL_CALLCONV PerlInterpreter* perl_alloc_using(struct IPerlMem* m, struct IPerlMem* ms, struct IPerlMem* mp, struct IPerlEnv* e, struct IPerlStdIO* io, struct IPerlLIO* lio, struct IPerlDir* d, struct IPerlSock* s, struct IPerlProc* p);
+PERL_CALLCONV PerlInterpreter* perl_alloc_using(struct IPerlMem* m, struct IPerlMem* ms, struct IPerlMem* mp, struct IPerlEnv* e, struct IPerlStdIO* io, struct IPerlLIO* lio, struct IPerlDir* d, struct IPerlSock* s, struct IPerlProc* p)
+                       __attribute__nonnull__(1)
+                       __attribute__nonnull__(2)
+                       __attribute__nonnull__(3)
+                       __attribute__nonnull__(4)
+                       __attribute__nonnull__(5)
+                       __attribute__nonnull__(6)
+                       __attribute__nonnull__(7)
+                       __attribute__nonnull__(8)
+                       __attribute__nonnull__(9);
+
 #endif
 PERL_CALLCONV PerlInterpreter* perl_alloc(void);
 PERL_CALLCONV void     perl_construct(PerlInterpreter* interp)
@@ -34,12 +44,29 @@ PERL_CALLCONV void  perl_free(PerlInterpreter* interp)
 PERL_CALLCONV int      perl_run(PerlInterpreter* interp)
                        __attribute__nonnull__(1);
 
-PERL_CALLCONV int      perl_parse(PerlInterpreter* interp, XSINIT_t xsinit, int argc, char** argv, char** env);
-PERL_CALLCONV bool     Perl_doing_taint(int argc, char** argv, char** env);
+PERL_CALLCONV int      perl_parse(PerlInterpreter* interp, XSINIT_t xsinit, int argc, char** argv, char** env)
+                       __attribute__nonnull__(1);
+
+PERL_CALLCONV bool     Perl_doing_taint(int argc, char** argv, char** env)
+                       __attribute__warn_unused_result__;
+
 #if defined(USE_ITHREADS)
-PERL_CALLCONV PerlInterpreter* perl_clone(PerlInterpreter* interp, UV flags);
+PERL_CALLCONV PerlInterpreter* perl_clone(PerlInterpreter* interp, UV flags)
+                       __attribute__nonnull__(1);
+
 #  if defined(PERL_IMPLICIT_SYS)
-PERL_CALLCONV PerlInterpreter* perl_clone_using(PerlInterpreter *interp, UV flags, struct IPerlMem* m, struct IPerlMem* ms, struct IPerlMem* mp, struct IPerlEnv* e, struct IPerlStdIO* io, struct IPerlLIO* lio, struct IPerlDir* d, struct IPerlSock* s, struct IPerlProc* p);
+PERL_CALLCONV PerlInterpreter* perl_clone_using(PerlInterpreter *interp, UV flags, struct IPerlMem* m, struct IPerlMem* ms, struct IPerlMem* mp, struct IPerlEnv* e, struct IPerlStdIO* io, struct IPerlLIO* lio, struct IPerlDir* d, struct IPerlSock* s, struct IPerlProc* p)
+                       __attribute__nonnull__(1)
+                       __attribute__nonnull__(3)
+                       __attribute__nonnull__(4)
+                       __attribute__nonnull__(5)
+                       __attribute__nonnull__(6)
+                       __attribute__nonnull__(7)
+                       __attribute__nonnull__(8)
+                       __attribute__nonnull__(9)
+                       __attribute__nonnull__(10)
+                       __attribute__nonnull__(11);
+
 #  endif
 #endif
 
@@ -58,29 +85,46 @@ PERL_CALLCONV Malloc_t      Perl_realloc(Malloc_t where, MEM_SIZE nbytes)
 PERL_CALLCONV Free_t   Perl_mfree(Malloc_t where);
 #if defined(MYMALLOC)
 PERL_CALLCONV MEM_SIZE Perl_malloced_size(void *p)
-                       __attribute__warn_unused_result__;
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(1);
 
 #endif
 
-PERL_CALLCONV void*    Perl_get_context(void);
-PERL_CALLCONV void     Perl_set_context(void *thx);
+PERL_CALLCONV void*    Perl_get_context(void)
+                       __attribute__warn_unused_result__;
+
+PERL_CALLCONV void     Perl_set_context(void *thx)
+                       __attribute__nonnull__(1);
+
 
 END_EXTERN_C
 
 /* functions with flag 'n' should come before here */
 START_EXTERN_C
 #  include "pp_proto.h"
-PERL_CALLCONV SV*      Perl_amagic_call(pTHX_ SV* left, SV* right, int method, int dir);
-PERL_CALLCONV bool     Perl_Gv_AMupdate(pTHX_ HV* stash);
-PERL_CALLCONV CV*      Perl_gv_handler(pTHX_ HV* stash, I32 id);
-PERL_CALLCONV OP*      Perl_append_elem(pTHX_ I32 optype, OP* head, OP* tail);
-PERL_CALLCONV OP*      Perl_append_list(pTHX_ I32 optype, LISTOP* first, LISTOP* last);
-PERL_CALLCONV I32      Perl_apply(pTHX_ I32 type, SV** mark, SV** sp);
-PERL_CALLCONV void     Perl_apply_attrs_string(pTHX_ const char *stashpv, CV *cv, const char *attrstr, STRLEN len);
-PERL_CALLCONV void     Perl_av_clear(pTHX_ AV* ar);
-PERL_CALLCONV SV*      Perl_av_delete(pTHX_ AV* ar, I32 key, I32 flags)
+PERL_CALLCONV SV*      Perl_amagic_call(pTHX_ SV* left, SV* right, int method, int dir)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV bool     Perl_Gv_AMupdate(pTHX_ HV* stash)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV CV*      Perl_gv_handler(pTHX_ HV* stash, I32 id)
                        __attribute__warn_unused_result__;
 
+PERL_CALLCONV OP*      Perl_append_elem(pTHX_ I32 optype, OP* first, OP* last);
+PERL_CALLCONV OP*      Perl_append_list(pTHX_ I32 optype, LISTOP* first, LISTOP* last);
+PERL_CALLCONV I32      Perl_apply(pTHX_ I32 type, SV** mark, SV** sp)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+
+PERL_CALLCONV void     Perl_apply_attrs_string(pTHX_ const char *stashpv, CV *cv, const char *attrstr, STRLEN len)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+
+PERL_CALLCONV void     Perl_av_clear(pTHX_ AV* ar);
+PERL_CALLCONV SV*      Perl_av_delete(pTHX_ AV* ar, I32 key, I32 flags);
 PERL_CALLCONV bool     Perl_av_exists(pTHX_ AV* ar, I32 key)
                        __attribute__warn_unused_result__;
 
@@ -94,26 +138,33 @@ PERL_CALLCONV AV*  Perl_av_fake(pTHX_ I32 size, SV** svp)
 PERL_CALLCONV SV**     Perl_av_fetch(pTHX_ AV* ar, I32 key, I32 lval)
                        __attribute__warn_unused_result__;
 
-PERL_CALLCONV void     Perl_av_fill(pTHX_ AV* ar, I32 fill);
+PERL_CALLCONV void     Perl_av_fill(pTHX_ AV* ar, I32 fill)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV I32      Perl_av_len(pTHX_ const AV* ar)
-                       __attribute__warn_unused_result__;
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV AV*      Perl_av_make(pTHX_ I32 size, SV** svp)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_2);
 
-PERL_CALLCONV SV*      Perl_av_pop(pTHX_ AV* ar)
-                       __attribute__warn_unused_result__;
+PERL_CALLCONV SV*      Perl_av_pop(pTHX_ AV* ar);
+PERL_CALLCONV void     Perl_av_push(pTHX_ AV* ar, SV* val)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_av_reify(pTHX_ AV* ar)
+                       __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV void     Perl_av_push(pTHX_ AV* ar, SV* val);
-PERL_CALLCONV void     Perl_av_reify(pTHX_ AV* ar);
 PERL_CALLCONV SV*      Perl_av_shift(pTHX_ AV* ar)
                        __attribute__warn_unused_result__;
 
 PERL_CALLCONV SV**     Perl_av_store(pTHX_ AV* ar, I32 key, SV* val);
 PERL_CALLCONV void     Perl_av_undef(pTHX_ AV* ar);
 PERL_CALLCONV void     Perl_av_unshift(pTHX_ AV* ar, I32 num);
-PERL_CALLCONV SV**     Perl_av_arylen_p(pTHX_ AV* av);
+PERL_CALLCONV SV**     Perl_av_arylen_p(pTHX_ AV* av)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV OP*      Perl_bind_match(pTHX_ I32 type, OP* left, OP* pat)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_2)
@@ -133,69 +184,104 @@ PERL_CALLCONV void       Perl_boot_core_PerlIO(pTHX);
 PERL_CALLCONV void     Perl_call_list(pTHX_ I32 oldscope, AV* av_list)
                        __attribute__nonnull__(pTHX_2);
 
-PERL_CALLCONV bool     Perl_cando(pTHX_ Mode_t mode, Uid_t effective, const Stat_t* statbufp)
+PERL_CALLCONV bool     Perl_cando(pTHX_ Mode_t mode, bool effective, const Stat_t* statbufp)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_3);
 
-PERL_CALLCONV U32      Perl_cast_ulong(pTHX_ NV f);
-PERL_CALLCONV I32      Perl_cast_i32(pTHX_ NV f);
-PERL_CALLCONV IV       Perl_cast_iv(pTHX_ NV f);
-PERL_CALLCONV UV       Perl_cast_uv(pTHX_ NV f);
+PERL_CALLCONV U32      Perl_cast_ulong(pTHX_ NV f)
+                       __attribute__warn_unused_result__;
+
+PERL_CALLCONV I32      Perl_cast_i32(pTHX_ NV f)
+                       __attribute__warn_unused_result__;
+
+PERL_CALLCONV IV       Perl_cast_iv(pTHX_ NV f)
+                       __attribute__warn_unused_result__;
+
+PERL_CALLCONV UV       Perl_cast_uv(pTHX_ NV f)
+                       __attribute__warn_unused_result__;
+
 #if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) && defined(F_FREESP)
-PERL_CALLCONV I32      Perl_my_chsize(pTHX_ int fd, Off_t length);
+PERL_CALLCONV I32      Perl_my_chsize(pTHX_ int fd, Off_t length)
+                       __attribute__warn_unused_result__;
+
 #endif
-PERL_CALLCONV OP*      Perl_convert(pTHX_ I32 optype, I32 flags, OP* o);
+PERL_CALLCONV OP*      Perl_convert(pTHX_ I32 optype, I32 flags, OP* o)
+                       __attribute__warn_unused_result__;
+
 PERL_CALLCONV void     Perl_croak(pTHX_ const char* pat, ...)
                        __attribute__noreturn__
                        __attribute__format__(__printf__,pTHX_1,pTHX_2);
 
 PERL_CALLCONV void     Perl_vcroak(pTHX_ const char* pat, va_list* args)
-                       __attribute__noreturn__;
+                       __attribute__noreturn__
+                       __attribute__nonnull__(pTHX_1);
 
 #if defined(PERL_IMPLICIT_CONTEXT)
 PERL_CALLCONV void     Perl_croak_nocontext(const char* pat, ...)
                        __attribute__noreturn__
-                       __attribute__format__(__printf__,1,2);
+                       __attribute__format__(__printf__,1,2)
+                       __attribute__nonnull__(1);
 
 PERL_CALLCONV OP*      Perl_die_nocontext(const char* pat, ...)
-                       __attribute__format__(__printf__,1,2);
+                       __attribute__format__(__printf__,1,2)
+                       __attribute__nonnull__(1);
 
 PERL_CALLCONV void     Perl_deb_nocontext(const char* pat, ...)
-                       __attribute__format__(__printf__,1,2);
+                       __attribute__format__(__printf__,1,2)
+                       __attribute__nonnull__(1);
 
 PERL_CALLCONV char*    Perl_form_nocontext(const char* pat, ...)
-                       __attribute__format__(__printf__,1,2);
+                       __attribute__format__(__printf__,1,2)
+                       __attribute__nonnull__(1);
+
+PERL_CALLCONV void     Perl_load_module_nocontext(U32 flags, SV* name, SV* ver, ...)
+                       __attribute__nonnull__(2)
+                       __attribute__nonnull__(3);
 
-PERL_CALLCONV void     Perl_load_module_nocontext(U32 flags, SV* name, SV* ver, ...);
 PERL_CALLCONV SV*      Perl_mess_nocontext(const char* pat, ...)
-                       __attribute__format__(__printf__,1,2);
+                       __attribute__format__(__printf__,1,2)
+                       __attribute__nonnull__(1);
 
 PERL_CALLCONV void     Perl_warn_nocontext(const char* pat, ...)
-                       __attribute__format__(__printf__,1,2);
+                       __attribute__format__(__printf__,1,2)
+                       __attribute__nonnull__(1);
 
 PERL_CALLCONV void     Perl_warner_nocontext(U32 err, const char* pat, ...)
-                       __attribute__format__(__printf__,2,3);
+                       __attribute__format__(__printf__,2,3)
+                       __attribute__nonnull__(2);
 
 PERL_CALLCONV SV*      Perl_newSVpvf_nocontext(const char* pat, ...)
-                       __attribute__format__(__printf__,1,2);
+                       __attribute__format__(__printf__,1,2)
+                       __attribute__nonnull__(1);
 
 PERL_CALLCONV void     Perl_sv_catpvf_nocontext(SV* sv, const char* pat, ...)
-                       __attribute__format__(__printf__,2,3);
+                       __attribute__format__(__printf__,2,3)
+                       __attribute__nonnull__(1)
+                       __attribute__nonnull__(2);
 
 PERL_CALLCONV void     Perl_sv_setpvf_nocontext(SV* sv, const char* pat, ...)
-                       __attribute__format__(__printf__,2,3);
+                       __attribute__format__(__printf__,2,3)
+                       __attribute__nonnull__(1)
+                       __attribute__nonnull__(2);
 
 PERL_CALLCONV void     Perl_sv_catpvf_mg_nocontext(SV* sv, const char* pat, ...)
-                       __attribute__format__(__printf__,2,3);
+                       __attribute__format__(__printf__,2,3)
+                       __attribute__nonnull__(1)
+                       __attribute__nonnull__(2);
 
 PERL_CALLCONV void     Perl_sv_setpvf_mg_nocontext(SV* sv, const char* pat, ...)
-                       __attribute__format__(__printf__,2,3);
+                       __attribute__format__(__printf__,2,3)
+                       __attribute__nonnull__(1)
+                       __attribute__nonnull__(2);
 
 PERL_CALLCONV int      Perl_fprintf_nocontext(PerlIO* stream, const char* fmt, ...)
-                       __attribute__format__(__printf__,2,3);
+                       __attribute__format__(__printf__,2,3)
+                       __attribute__nonnull__(1)
+                       __attribute__nonnull__(2);
 
 PERL_CALLCONV int      Perl_printf_nocontext(const char* fmt, ...)
-                       __attribute__format__(__printf__,1,2);
+                       __attribute__format__(__printf__,1,2)
+                       __attribute__nonnull__(1);
 
 #endif
 PERL_CALLCONV void     Perl_cv_ckproto(pTHX_ const CV* cv, const GV* gv, const char* p)
@@ -204,13 +290,26 @@ PERL_CALLCONV void        Perl_cv_ckproto(pTHX_ const CV* cv, const GV* gv, const char*
 PERL_CALLCONV CV*      Perl_cv_clone(pTHX_ CV* proto)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV SV*      Perl_cv_const_sv(pTHX_ CV* cv);
-PERL_CALLCONV SV*      Perl_op_const_sv(pTHX_ const OP* o, CV* cv);
-PERL_CALLCONV void     Perl_cv_undef(pTHX_ CV* cv);
-PERL_CALLCONV void     Perl_cx_dump(pTHX_ PERL_CONTEXT* cs);
+PERL_CALLCONV SV*      Perl_cv_const_sv(pTHX_ CV* cv)
+                       __attribute__warn_unused_result__;
+
+PERL_CALLCONV SV*      Perl_op_const_sv(pTHX_ const OP* o, CV* cv)
+                       __attribute__warn_unused_result__;
+
+PERL_CALLCONV void     Perl_cv_undef(pTHX_ CV* cv)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_cx_dump(pTHX_ PERL_CONTEXT* cx)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV SV*      Perl_filter_add(pTHX_ filter_t funcp, SV* datasv);
-PERL_CALLCONV void     Perl_filter_del(pTHX_ filter_t funcp);
-PERL_CALLCONV I32      Perl_filter_read(pTHX_ int idx, SV* buffer, int maxlen);
+PERL_CALLCONV void     Perl_filter_del(pTHX_ filter_t funcp)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV I32      Perl_filter_read(pTHX_ int idx, SV* buffer, int maxlen)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_2);
+
 PERL_CALLCONV char**   Perl_get_op_descs(pTHX)
                        __attribute__warn_unused_result__
                        __attribute__pure__;
@@ -235,9 +334,12 @@ PERL_CALLCONV I32  Perl_cxinc(pTHX)
                        __attribute__warn_unused_result__;
 
 PERL_CALLCONV void     Perl_deb(pTHX_ const char* pat, ...)
-                       __attribute__format__(__printf__,pTHX_1,pTHX_2);
+                       __attribute__format__(__printf__,pTHX_1,pTHX_2)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_vdeb(pTHX_ const char* pat, va_list* args)
+                       __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV void     Perl_vdeb(pTHX_ const char* pat, va_list* args);
 PERL_CALLCONV void     Perl_debprofdump(pTHX);
 PERL_CALLCONV I32      Perl_debop(pTHX_ const OP* o)
                        __attribute__nonnull__(pTHX_1);
@@ -263,8 +365,14 @@ PERL_CALLCONV OP*  Perl_die(pTHX_ const char* pat, ...)
 PERL_CALLCONV OP*      Perl_vdie(pTHX_ const char* pat, va_list* args);
 PERL_CALLCONV OP*      Perl_die_where(pTHX_ const char* message, STRLEN msglen);
 PERL_CALLCONV void     Perl_dounwind(pTHX_ I32 cxix);
-PERL_CALLCONV bool     Perl_do_aexec(pTHX_ SV* really, SV** mark, SV** sp);
-PERL_CALLCONV bool     Perl_do_aexec5(pTHX_ SV* really, SV** mark, SV** sp, int fd, int flag);
+/* PERL_CALLCONV bool  Perl_do_aexec(pTHX_ SV* really, SV** mark, SV** sp)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3); */
+
+PERL_CALLCONV bool     Perl_do_aexec5(pTHX_ SV* really, SV** mark, SV** sp, int fd, int flag)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+
 PERL_CALLCONV int      Perl_do_binmode(pTHX_ PerlIO *fp, int iotype, int mode)
                        __attribute__nonnull__(pTHX_1);
 
@@ -278,25 +386,61 @@ PERL_CALLCONV bool        Perl_do_close(pTHX_ GV* gv, bool not_implicit)
 PERL_CALLCONV bool     Perl_do_eof(pTHX_ GV* gv)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV bool     Perl_do_exec(pTHX_ char* cmd)
+
+#ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
+/* PERL_CALLCONV bool  Perl_do_exec(pTHX_ const char* cmd)
+                       __attribute__nonnull__(pTHX_1); */
+
+#else
+PERL_CALLCONV bool     Perl_do_exec(pTHX_ const char* cmd)
+                       __attribute__nonnull__(pTHX_1);
+
+#endif
+
+#if defined(WIN32) || defined(__SYMBIAN32__)
+PERL_CALLCONV int      Perl_do_aspawn(pTHX_ SV* really, SV** mark, SV** sp)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+
+PERL_CALLCONV int      Perl_do_spawn(pTHX_ char* cmd)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV int      Perl_do_spawn_nowait(pTHX_ char* cmd)
                        __attribute__nonnull__(pTHX_1);
 
-#if defined(WIN32) || defined(SYMBIAN)
-PERL_CALLCONV int      Perl_do_aspawn(pTHX_ SV* really, SV** mark, SV** sp);
-PERL_CALLCONV int      Perl_do_spawn(pTHX_ char* cmd);
-PERL_CALLCONV int      Perl_do_spawn_nowait(pTHX_ char* cmd);
 #endif
 #if !defined(WIN32)
-PERL_CALLCONV bool     Perl_do_exec3(pTHX_ char* cmd, int fd, int flag);
+PERL_CALLCONV bool     Perl_do_exec3(pTHX_ const char* cmd, int fd, int flag)
+                       __attribute__nonnull__(pTHX_1);
+
 #endif
 PERL_CALLCONV void     Perl_do_execfree(pTHX);
 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
-PERL_CALLCONV I32      Perl_do_ipcctl(pTHX_ I32 optype, SV** mark, SV** sp);
-PERL_CALLCONV I32      Perl_do_ipcget(pTHX_ I32 optype, SV** mark, SV** sp);
-PERL_CALLCONV I32      Perl_do_msgrcv(pTHX_ SV** mark, SV** sp);
-PERL_CALLCONV I32      Perl_do_msgsnd(pTHX_ SV** mark, SV** sp);
-PERL_CALLCONV I32      Perl_do_semop(pTHX_ SV** mark, SV** sp);
-PERL_CALLCONV I32      Perl_do_shmio(pTHX_ I32 optype, SV** mark, SV** sp);
+PERL_CALLCONV I32      Perl_do_ipcctl(pTHX_ I32 optype, SV** mark, SV** sp)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+
+PERL_CALLCONV I32      Perl_do_ipcget(pTHX_ I32 optype, SV** mark, SV** sp)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+
+PERL_CALLCONV I32      Perl_do_msgrcv(pTHX_ SV** mark, SV** sp)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV I32      Perl_do_msgsnd(pTHX_ SV** mark, SV** sp)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV I32      Perl_do_semop(pTHX_ SV** mark, SV** sp)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV I32      Perl_do_shmio(pTHX_ I32 optype, SV** mark, SV** sp)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+
 #endif
 PERL_CALLCONV void     Perl_do_join(pTHX_ SV* sv, SV* del, SV** mark, SV** sp)
                        __attribute__nonnull__(pTHX_1)
@@ -305,90 +449,213 @@ PERL_CALLCONV void       Perl_do_join(pTHX_ SV* sv, SV* del, SV** mark, SV** sp)
                        __attribute__nonnull__(pTHX_4);
 
 PERL_CALLCONV OP*      Perl_do_kv(pTHX);
-PERL_CALLCONV bool     Perl_do_open(pTHX_ GV* gv, char* name, I32 len, int as_raw, int rawmode, int rawperm, PerlIO* supplied_fp);
-PERL_CALLCONV bool     Perl_do_open9(pTHX_ GV *gv, char *name, I32 len, int as_raw, int rawmode, int rawperm, PerlIO *supplied_fp, SV *svs, I32 num);
-PERL_CALLCONV bool     Perl_do_openn(pTHX_ GV *gv, char *name, I32 len, int as_raw, int rawmode, int rawperm, PerlIO *supplied_fp, SV **svp, I32 num);
-PERL_CALLCONV void     Perl_do_pipe(pTHX_ SV* sv, GV* rgv, GV* wgv);
-PERL_CALLCONV bool     Perl_do_print(pTHX_ SV* sv, PerlIO* fp);
-PERL_CALLCONV OP*      Perl_do_readline(pTHX);
-PERL_CALLCONV I32      Perl_do_chomp(pTHX_ SV* sv);
+/* PERL_CALLCONV bool  Perl_do_open(pTHX_ GV* gv, const char* name, I32 len, int as_raw, int rawmode, int rawperm, PerlIO* supplied_fp)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2); */
+
+PERL_CALLCONV bool     Perl_do_open9(pTHX_ GV *gv, const char *name, I32 len, int as_raw, int rawmode, int rawperm, PerlIO *supplied_fp, SV *svs, I32 num)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_8);
+
+PERL_CALLCONV bool     Perl_do_openn(pTHX_ GV *gv, const char *name, I32 len, int as_raw, int rawmode, int rawperm, PerlIO *supplied_fp, SV **svp, I32 num)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_do_pipe(pTHX_ SV* sv, GV* rgv, GV* wgv)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV bool     Perl_do_print(pTHX_ SV* sv, PerlIO* fp)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV OP*      Perl_do_readline(pTHX)
+                       __attribute__warn_unused_result__;
+
+PERL_CALLCONV I32      Perl_do_chomp(pTHX_ SV* sv)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV bool     Perl_do_seek(pTHX_ GV* gv, Off_t pos, int whence);
-PERL_CALLCONV void     Perl_do_sprintf(pTHX_ SV* sv, I32 len, SV** sarg);
-PERL_CALLCONV Off_t    Perl_do_sysseek(pTHX_ GV* gv, Off_t pos, int whence);
-PERL_CALLCONV Off_t    Perl_do_tell(pTHX_ GV* gv);
-PERL_CALLCONV I32      Perl_do_trans(pTHX_ SV* sv);
+PERL_CALLCONV void     Perl_do_sprintf(pTHX_ SV* sv, I32 len, SV** sarg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_3);
+
+PERL_CALLCONV Off_t    Perl_do_sysseek(pTHX_ GV* gv, Off_t pos, int whence)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV Off_t    Perl_do_tell(pTHX_ GV* gv)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV I32      Perl_do_trans(pTHX_ SV* sv)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV UV       Perl_do_vecget(pTHX_ SV* sv, I32 offset, I32 size)
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV void     Perl_do_vecset(pTHX_ SV* sv)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV void     Perl_do_vop(pTHX_ I32 optype, SV* sv, SV* left, SV* right);
-PERL_CALLCONV OP*      Perl_dofile(pTHX_ OP* term);
-PERL_CALLCONV I32      Perl_dowantarray(pTHX);
+PERL_CALLCONV void     Perl_do_vop(pTHX_ I32 optype, SV* sv, SV* left, SV* right)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_4);
+
+PERL_CALLCONV OP*      Perl_dofile(pTHX_ OP* term, I32 force_builtin)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV I32      Perl_dowantarray(pTHX)
+                       __attribute__warn_unused_result__;
+
 PERL_CALLCONV void     Perl_dump_all(pTHX);
 PERL_CALLCONV void     Perl_dump_eval(pTHX);
 #if defined(DUMP_FDS)
-PERL_CALLCONV void     Perl_dump_fds(pTHX_ char* s);
+PERL_CALLCONV void     Perl_dump_fds(pTHX_ char* s)
+                       __attribute__nonnull__(pTHX_1);
+
 #endif
-PERL_CALLCONV void     Perl_dump_form(pTHX_ const GV* gv);
-PERL_CALLCONV void     Perl_gv_dump(pTHX_ GV* gv);
-PERL_CALLCONV void     Perl_op_dump(pTHX_ const OP* arg);
+PERL_CALLCONV void     Perl_dump_form(pTHX_ const GV* gv)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_gv_dump(pTHX_ GV* gv)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_op_dump(pTHX_ const OP* arg)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV void     Perl_pmop_dump(pTHX_ PMOP* pm);
-PERL_CALLCONV void     Perl_dump_packsubs(pTHX_ const HV* stash);
+PERL_CALLCONV void     Perl_dump_packsubs(pTHX_ const HV* stash)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV void     Perl_dump_sub(pTHX_ const GV* gv)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV void     Perl_fbm_compile(pTHX_ SV* sv, U32 flags);
-PERL_CALLCONV char*    Perl_fbm_instr(pTHX_ unsigned char* big, unsigned char* bigend, SV* littlesv, U32 flags);
-PERL_CALLCONV char*    Perl_find_script(pTHX_ const char *scriptname, bool dosearch, const char **search_ext, I32 flags);
-PERL_CALLCONV OP*      Perl_force_list(pTHX_ OP* arg)
+PERL_CALLCONV void     Perl_fbm_compile(pTHX_ SV* sv, U32 flags)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV char*    Perl_fbm_instr(pTHX_ unsigned char* big, unsigned char* bigend, SV* littlesv, U32 flags)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+
+PERL_CALLCONV char*    Perl_find_script(pTHX_ const char *scriptname, bool dosearch, const char *const *const search_ext, I32 flags)
                        __attribute__nonnull__(pTHX_1);
 
+PERL_CALLCONV OP*      Perl_force_list(pTHX_ OP* arg);
 PERL_CALLCONV OP*      Perl_fold_constants(pTHX_ OP* arg)
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV char*    Perl_form(pTHX_ const char* pat, ...)
-                       __attribute__format__(__printf__,pTHX_1,pTHX_2);
+                       __attribute__format__(__printf__,pTHX_1,pTHX_2)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV char*    Perl_vform(pTHX_ const char* pat, va_list* args)
+                       __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV char*    Perl_vform(pTHX_ const char* pat, va_list* args);
 PERL_CALLCONV void     Perl_free_tmps(pTHX);
 PERL_CALLCONV OP*      Perl_gen_constant_list(pTHX_ OP* o);
 #if !defined(HAS_GETENV_LEN)
-PERL_CALLCONV char*    Perl_getenv_len(pTHX_ const char* key, unsigned long *len);
+PERL_CALLCONV char*    Perl_getenv_len(pTHX_ const char* key, unsigned long *len)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
 #endif
 PERL_CALLCONV void     Perl_gp_free(pTHX_ GV* gv);
 PERL_CALLCONV GP*      Perl_gp_ref(pTHX_ GP* gp);
-PERL_CALLCONV GV*      Perl_gv_AVadd(pTHX_ GV* gv);
-PERL_CALLCONV GV*      Perl_gv_HVadd(pTHX_ GV* gv);
-PERL_CALLCONV GV*      Perl_gv_IOadd(pTHX_ GV* gv);
-PERL_CALLCONV GV*      Perl_gv_autoload4(pTHX_ HV* stash, const char* name, STRLEN len, I32 method);
-PERL_CALLCONV void     Perl_gv_check(pTHX_ HV* stash);
-PERL_CALLCONV void     Perl_gv_efullname(pTHX_ SV* sv, const GV* gv);
-/* PERL_CALLCONV void  Perl_gv_efullname3(pTHX_ SV* sv, const GV* gv, const char* prefix); */
-PERL_CALLCONV void     Perl_gv_efullname4(pTHX_ SV* sv, const GV* gv, const char* prefix, bool keepmain);
-PERL_CALLCONV GV*      Perl_gv_fetchfile(pTHX_ const char* name);
-PERL_CALLCONV GV*      Perl_gv_fetchmeth(pTHX_ HV* stash, const char* name, STRLEN len, I32 level);
-PERL_CALLCONV GV*      Perl_gv_fetchmeth_autoload(pTHX_ HV* stash, const char* name, STRLEN len, I32 level);
-PERL_CALLCONV GV*      Perl_gv_fetchmethod(pTHX_ HV* stash, const char* name);
-PERL_CALLCONV GV*      Perl_gv_fetchmethod_autoload(pTHX_ HV* stash, const char* name, I32 autoload);
-PERL_CALLCONV GV*      Perl_gv_fetchpv(pTHX_ const char* name, I32 add, I32 sv_type);
-PERL_CALLCONV void     Perl_gv_fullname(pTHX_ SV* sv, const GV* gv);
-/* PERL_CALLCONV void  Perl_gv_fullname3(pTHX_ SV* sv, const GV* gv, const char* prefix); */
-PERL_CALLCONV void     Perl_gv_fullname4(pTHX_ SV* sv, const GV* gv, const char* prefix, bool keepmain);
-PERL_CALLCONV void     Perl_gv_init(pTHX_ GV* gv, HV* stash, const char* name, STRLEN len, int multi);
-PERL_CALLCONV HV*      Perl_gv_stashpv(pTHX_ const char* name, I32 create);
-PERL_CALLCONV HV*      Perl_gv_stashpvn(pTHX_ const char* name, U32 namelen, I32 create);
+PERL_CALLCONV GV*      Perl_gv_AVadd(pTHX_ GV* gv)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV GV*      Perl_gv_HVadd(pTHX_ GV* gv)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV GV*      Perl_gv_IOadd(pTHX_ GV* gv)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV GV*      Perl_gv_autoload4(pTHX_ HV* stash, const char* name, STRLEN len, I32 method)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_gv_check(pTHX_ HV* stash)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_gv_efullname(pTHX_ SV* sv, const GV* gv)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+/* PERL_CALLCONV void  Perl_gv_efullname3(pTHX_ SV* sv, const GV* gv, const char* prefix)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2); */
+
+PERL_CALLCONV void     Perl_gv_efullname4(pTHX_ SV* sv, const GV* gv, const char* prefix, bool keepmain)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV GV*      Perl_gv_fetchfile(pTHX_ const char* name)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV GV*      Perl_gv_fetchmeth(pTHX_ HV* stash, const char* name, STRLEN len, I32 level)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV GV*      Perl_gv_fetchmeth_autoload(pTHX_ HV* stash, const char* name, STRLEN len, I32 level)
+                       __attribute__nonnull__(pTHX_2);
+
+/* PERL_CALLCONV GV*   Perl_gv_fetchmethod(pTHX_ HV* stash, const char* name)
+                       __attribute__nonnull__(pTHX_2); */
+
+PERL_CALLCONV GV*      Perl_gv_fetchmethod_autoload(pTHX_ HV* stash, const char* name, I32 autoload)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV GV*      Perl_gv_fetchpv(pTHX_ const char* name, I32 add, I32 sv_type)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_gv_fullname(pTHX_ SV* sv, const GV* gv)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+/* PERL_CALLCONV void  Perl_gv_fullname3(pTHX_ SV* sv, const GV* gv, const char* prefix)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2); */
+
+PERL_CALLCONV void     Perl_gv_fullname4(pTHX_ SV* sv, const GV* gv, const char* prefix, bool keepmain)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_gv_init(pTHX_ GV* gv, HV* stash, const char* name, STRLEN len, int multi)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_3);
+
+PERL_CALLCONV HV*      Perl_gv_stashpv(pTHX_ const char* name, I32 create)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV HV*      Perl_gv_stashpvn(pTHX_ const char* name, U32 namelen, I32 create)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV HV*      Perl_gv_stashsv(pTHX_ SV* sv, I32 create);
 PERL_CALLCONV void     Perl_hv_clear(pTHX_ HV* tb);
-PERL_CALLCONV void     Perl_hv_delayfree_ent(pTHX_ HV* hv, HE* entry);
-PERL_CALLCONV SV*      Perl_hv_delete(pTHX_ HV* tb, const char* key, I32 klen, I32 flags);
-PERL_CALLCONV SV*      Perl_hv_delete_ent(pTHX_ HV* tb, SV* key, I32 flags, U32 hash);
-PERL_CALLCONV bool     Perl_hv_exists(pTHX_ HV* tb, const char* key, I32 klen);
-PERL_CALLCONV bool     Perl_hv_exists_ent(pTHX_ HV* tb, SV* key, U32 hash);
-PERL_CALLCONV SV**     Perl_hv_fetch(pTHX_ HV* tb, const char* key, I32 klen, I32 lval);
-PERL_CALLCONV HE*      Perl_hv_fetch_ent(pTHX_ HV* tb, SV* key, I32 lval, U32 hash);
-PERL_CALLCONV void     Perl_hv_free_ent(pTHX_ HV* hv, HE* entry)
+PERL_CALLCONV void     Perl_hv_delayfree_ent(pTHX_ HV* hv, HE* entry)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV SV*      Perl_hv_delete(pTHX_ HV* tb, const char* key, I32 klen, I32 flags)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV SV*      Perl_hv_delete_ent(pTHX_ HV* tb, SV* key, I32 flags, U32 hash)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV bool     Perl_hv_exists(pTHX_ HV* tb, const char* key, I32 klen)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV bool     Perl_hv_exists_ent(pTHX_ HV* tb, SV* key, U32 hash)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV SV**     Perl_hv_fetch(pTHX_ HV* tb, const char* key, I32 klen, I32 lval)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV HE*      Perl_hv_fetch_ent(pTHX_ HV* tb, SV* key, I32 lval, U32 hash)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_hv_free_ent(pTHX_ HV* hv, HE* entryK)
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV I32      Perl_hv_iterinit(pTHX_ HV* tb)
@@ -403,9 +670,9 @@ PERL_CALLCONV SV*   Perl_hv_iterkeysv(pTHX_ HE* entry)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV HE*      Perl_hv_iternext(pTHX_ HV* tb)
+/* PERL_CALLCONV HE*   Perl_hv_iternext(pTHX_ HV* tb)
                        __attribute__warn_unused_result__
-                       __attribute__nonnull__(pTHX_1);
+                       __attribute__nonnull__(pTHX_1); */
 
 PERL_CALLCONV SV*      Perl_hv_iternextsv(pTHX_ HV* hv, char** key, I32* retlen)
                        __attribute__warn_unused_result__
@@ -425,8 +692,10 @@ PERL_CALLCONV SV*  Perl_hv_iterval(pTHX_ HV* tb, HE* entry)
 PERL_CALLCONV void     Perl_hv_ksplit(pTHX_ HV* hv, IV newmax)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV void     Perl_hv_magic(pTHX_ HV* hv, GV* gv, int how);
-PERL_CALLCONV SV**     Perl_hv_store(pTHX_ HV* tb, const char* key, I32 klen, SV* val, U32 hash);
+/* PERL_CALLCONV void  Perl_hv_magic(pTHX_ HV* hv, GV* gv, int how)
+                       __attribute__nonnull__(pTHX_1); */
+
+PERL_CALLCONV SV**     Perl_hv_store(pTHX_ HV* tb, const char* key, I32 klen, SV* val, U32 hash);
 PERL_CALLCONV HE*      Perl_hv_store_ent(pTHX_ HV* tb, SV* key, SV* val, U32 hash);
 PERL_CALLCONV SV**     Perl_hv_store_flags(pTHX_ HV* tb, const char* key, I32 klen, SV* val, U32 hash, int flags);
 PERL_CALLCONV void     Perl_hv_undef(pTHX_ HV* tb);
@@ -444,7 +713,7 @@ PERL_CALLCONV I32   Perl_ibcmp_utf8(pTHX_ const char* a, char **pe1, UV l1, bool u
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_5);
 
-PERL_CALLCONV bool     Perl_ingroup(pTHX_ Gid_t testgid, Uid_t effective)
+PERL_CALLCONV bool     Perl_ingroup(pTHX_ Gid_t testgid, bool effective)
                        __attribute__warn_unused_result__;
 
 PERL_CALLCONV void     Perl_init_argv_symbols(pTHX_ int argc, char **argv)
@@ -452,7 +721,9 @@ PERL_CALLCONV void  Perl_init_argv_symbols(pTHX_ int argc, char **argv)
 
 PERL_CALLCONV void     Perl_init_debugger(pTHX);
 PERL_CALLCONV void     Perl_init_stacks(pTHX);
-PERL_CALLCONV void     Perl_init_tm(pTHX_ struct tm *ptm);
+PERL_CALLCONV void     Perl_init_tm(pTHX_ struct tm *ptm)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV U32      Perl_intro_my(pTHX);
 PERL_CALLCONV char*    Perl_instr(pTHX_ const char* big, const char* little)
                        __attribute__warn_unused_result__
@@ -468,7 +739,8 @@ PERL_CALLCONV OP*   Perl_invert(pTHX_ OP* cmd)
                        __attribute__warn_unused_result__;
 
 PERL_CALLCONV bool     Perl_is_gv_magical(pTHX_ const char *name, STRLEN len, U32 flags)
-                       __attribute__warn_unused_result__;
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV I32      Perl_is_lvalue_sub(pTHX)
                        __attribute__warn_unused_result__;
@@ -619,8 +891,8 @@ PERL_CALLCONV STRLEN        Perl_is_utf8_char(pTHX_ const U8 *p)
 PERL_CALLCONV bool     Perl_is_utf8_string(pTHX_ const U8 *s, STRLEN len)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV bool     Perl_is_utf8_string_loc(pTHX_ const U8 *s, STRLEN len, const U8 **p)
-                       __attribute__nonnull__(pTHX_1);
+/* PERL_CALLCONV bool  Perl_is_utf8_string_loc(pTHX_ const U8 *s, STRLEN len, const U8 **p)
+                       __attribute__nonnull__(pTHX_1); */
 
 PERL_CALLCONV bool     Perl_is_utf8_string_loclen(pTHX_ const U8 *s, STRLEN len, const U8 **ep, STRLEN *el)
                        __attribute__nonnull__(pTHX_1);
@@ -698,17 +970,31 @@ PERL_CALLCONV I32 Perl_keyword(pTHX_ const char* d, I32 len)
 
 PERL_CALLCONV void     Perl_leave_scope(pTHX_ I32 base);
 PERL_CALLCONV void     Perl_lex_end(pTHX);
-PERL_CALLCONV void     Perl_lex_start(pTHX_ SV* line);
-PERL_CALLCONV void     Perl_op_null(pTHX_ OP* o);
-PERL_CALLCONV void     Perl_op_clear(pTHX_ OP* o);
+PERL_CALLCONV void     Perl_lex_start(pTHX_ SV* line)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_op_null(pTHX_ OP* o)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_op_clear(pTHX_ OP* o)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV void     Perl_op_refcnt_lock(pTHX);
 PERL_CALLCONV void     Perl_op_refcnt_unlock(pTHX);
-PERL_CALLCONV OP*      Perl_linklist(pTHX_ OP* o);
+PERL_CALLCONV OP*      Perl_linklist(pTHX_ OP* o)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV OP*      Perl_list(pTHX_ OP* o);
 PERL_CALLCONV OP*      Perl_listkids(pTHX_ OP* o);
-PERL_CALLCONV void     Perl_load_module(pTHX_ U32 flags, SV* name, SV* ver, ...);
-PERL_CALLCONV void     Perl_vload_module(pTHX_ U32 flags, SV* name, SV* ver, va_list* args);
-PERL_CALLCONV OP*      Perl_localize(pTHX_ OP* arg, I32 lexical);
+PERL_CALLCONV void     Perl_load_module(pTHX_ U32 flags, SV* name, SV* ver, ...)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_vload_module(pTHX_ U32 flags, SV* name, SV* ver, va_list* args)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV OP*      Perl_localize(pTHX_ OP* arg, I32 lexical)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV I32      Perl_looks_like_number(pTHX_ SV* sv)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
@@ -726,83 +1012,281 @@ PERL_CALLCONV UV        Perl_grok_hex(pTHX_ const char* start, STRLEN* len_p, I32* flag
 PERL_CALLCONV int      Perl_grok_number(pTHX_ const char *pv, STRLEN len, UV *valuep)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV bool     Perl_grok_numeric_radix(pTHX_ const char **sp, const char *send);
-PERL_CALLCONV UV       Perl_grok_oct(pTHX_ const char* start, STRLEN* len_p, I32* flags, NV *result);
-PERL_CALLCONV int      Perl_magic_clearenv(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_clear_all_env(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_clearpack(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_clearsig(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_existspack(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_freeregexp(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_freeovrld(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_get(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_getarylen(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_getdefelem(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_getglob(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_getnkeys(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_getpack(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_getpos(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_getsig(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_getsubstr(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_gettaint(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_getuvar(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_getvec(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV U32      Perl_magic_len(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_nextpack(pTHX_ SV* sv, MAGIC* mg, SV* key);
-PERL_CALLCONV U32      Perl_magic_regdata_cnt(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_regdatum_get(pTHX_ SV* sv, MAGIC* mg);
+PERL_CALLCONV bool     Perl_grok_numeric_radix(pTHX_ const char **sp, const char *send)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV UV       Perl_grok_oct(pTHX_ const char* start, STRLEN* len_p, I32* flags, NV *result)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+
+PERL_CALLCONV int      Perl_magic_clearenv(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_clear_all_env(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_clearpack(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_clearsig(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_existspack(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_freeregexp(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_freeovrld(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_get(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_getarylen(pTHX_ SV* sv, const MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_getdefelem(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_getglob(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_getnkeys(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_getpack(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_getpos(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_getsig(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_getsubstr(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_gettaint(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_getuvar(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_getvec(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV U32      Perl_magic_len(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_nextpack(pTHX_ SV* sv, MAGIC* mg, SV* key)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+
+PERL_CALLCONV U32      Perl_magic_regdata_cnt(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_regdatum_get(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
 PERL_CALLCONV int      Perl_magic_regdatum_set(pTHX_ SV* sv, MAGIC* mg)
-                       __attribute__noreturn__;
+                       __attribute__noreturn__
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_set(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_setamagic(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_setarylen(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_freearylen_p(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_setbm(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_setdbline(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_setdefelem(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_setenv(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_setfm(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_setisa(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_setglob(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_setmglob(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_setnkeys(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_setpack(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_setpos(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_setregexp(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_setsig(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_setsubstr(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_settaint(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_setuvar(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_setvec(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_setutf8(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_set_all_env(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV U32      Perl_magic_sizepack(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV int      Perl_magic_wipepack(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_magicname(pTHX_ const char* sym, const char* name, I32 namlen)
+                       __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV int      Perl_magic_set(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_setamagic(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_setarylen(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_setbm(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_setdbline(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_setdefelem(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_setenv(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_setfm(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_setisa(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_setglob(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_setmglob(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_setnkeys(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_setpack(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_setpos(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_setregexp(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_setsig(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_setsubstr(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_settaint(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_setuvar(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_setvec(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_setutf8(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_set_all_env(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV U32      Perl_magic_sizepack(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV int      Perl_magic_wipepack(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV void     Perl_magicname(pTHX_ const char* sym, const char* name, I32 namlen);
 PERL_CALLCONV void     Perl_markstack_grow(pTHX);
 #if defined(USE_LOCALE_COLLATE)
-PERL_CALLCONV int      Perl_magic_setcollxfrm(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV char*    Perl_mem_collxfrm(pTHX_ const char* s, STRLEN len, STRLEN* xlen);
+PERL_CALLCONV int      Perl_magic_setcollxfrm(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV char*    Perl_mem_collxfrm(pTHX_ const char* s, STRLEN len, STRLEN* xlen)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_3);
+
 #endif
 PERL_CALLCONV SV*      Perl_mess(pTHX_ const char* pat, ...)
-                       __attribute__format__(__printf__,pTHX_1,pTHX_2);
+                       __attribute__format__(__printf__,pTHX_1,pTHX_2)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV SV*      Perl_vmess(pTHX_ const char* pat, va_list* args)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_qerror(pTHX_ SV* err)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_sortsv(pTHX_ SV** array, size_t num_elts, SVCOMPARE_t cmp)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV int      Perl_mg_clear(pTHX_ SV* sv)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV int      Perl_mg_copy(pTHX_ SV* sv, SV* nsv, const char* key, I32 klen)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_mg_localize(pTHX_ SV* sv, SV* nsv)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV MAGIC*   Perl_mg_find(pTHX_ const SV* sv, int type)
+                       __attribute__warn_unused_result__;
+
+PERL_CALLCONV int      Perl_mg_free(pTHX_ SV* sv)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV int      Perl_mg_get(pTHX_ SV* sv)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV U32      Perl_mg_length(pTHX_ SV* sv)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_mg_magical(pTHX_ SV* sv)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV int      Perl_mg_set(pTHX_ SV* sv)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV I32      Perl_mg_size(pTHX_ SV* sv)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_mini_mktime(pTHX_ struct tm *pm)
+                       __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV SV*      Perl_vmess(pTHX_ const char* pat, va_list* args);
-PERL_CALLCONV void     Perl_qerror(pTHX_ SV* err);
-PERL_CALLCONV void     Perl_sortsv(pTHX_ SV ** array, size_t num_elts, SVCOMPARE_t cmp);
-PERL_CALLCONV int      Perl_mg_clear(pTHX_ SV* sv);
-PERL_CALLCONV int      Perl_mg_copy(pTHX_ SV* sv, SV* nsv, const char* key, I32 klen);
-PERL_CALLCONV MAGIC*   Perl_mg_find(pTHX_ const SV* sv, int type);
-PERL_CALLCONV int      Perl_mg_free(pTHX_ SV* sv);
-PERL_CALLCONV int      Perl_mg_get(pTHX_ SV* sv);
-PERL_CALLCONV U32      Perl_mg_length(pTHX_ SV* sv);
-PERL_CALLCONV void     Perl_mg_magical(pTHX_ SV* sv);
-PERL_CALLCONV int      Perl_mg_set(pTHX_ SV* sv);
-PERL_CALLCONV I32      Perl_mg_size(pTHX_ SV* sv);
-PERL_CALLCONV void     Perl_mini_mktime(pTHX_ struct tm *pm);
 PERL_CALLCONV OP*      Perl_mod(pTHX_ OP* o, I32 type);
 PERL_CALLCONV int      Perl_mode_from_discipline(pTHX_ SV* discp);
-PERL_CALLCONV char*    Perl_moreswitches(pTHX_ char* s);
+PERL_CALLCONV char*    Perl_moreswitches(pTHX_ char* s)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV OP*      Perl_my(pTHX_ OP* o)
                        __attribute__nonnull__(pTHX_1);
 
@@ -844,11 +1328,19 @@ PERL_CALLCONV void*      Perl_my_memset(char* loc, I32 ch, I32 len)
 
 #endif
 PERL_CALLCONV I32      Perl_my_pclose(pTHX_ PerlIO* ptr);
-PERL_CALLCONV PerlIO*  Perl_my_popen(pTHX_ char* cmd, char* mode);
-PERL_CALLCONV PerlIO*  Perl_my_popen_list(pTHX_ char* mode, int n, SV ** args);
+PERL_CALLCONV PerlIO*  Perl_my_popen(pTHX_ const char* cmd, const char* mode)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV PerlIO*  Perl_my_popen_list(pTHX_ char* mode, int n, SV ** args)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_3);
+
 PERL_CALLCONV void     Perl_my_setenv(pTHX_ const char* nam, const char* val);
 PERL_CALLCONV I32      Perl_my_stat(pTHX);
-PERL_CALLCONV char *   Perl_my_strftime(pTHX_ const char *fmt, int sec, int min, int hour, int mday, int mon, int year, int wday, int yday, int isdst);
+PERL_CALLCONV char *   Perl_my_strftime(pTHX_ const char *fmt, int sec, int min, int hour, int mday, int mon, int year, int wday, int yday, int isdst)
+                       __attribute__nonnull__(pTHX_1);
+
 #if defined(MYSWAP)
 PERL_CALLCONV short    Perl_my_swap(pTHX_ short s)
                        __attribute__malloc__
@@ -880,23 +1372,28 @@ PERL_CALLCONV OP*        Perl_newASSIGNOP(pTHX_ I32 flags, OP* left, I32 optype, OP* ri
                        __attribute__malloc__
                        __attribute__warn_unused_result__;
 
-PERL_CALLCONV OP*      Perl_newCONDOP(pTHX_ I32 flags, OP* expr, OP* trueop, OP* falseop)
+PERL_CALLCONV OP*      Perl_newCONDOP(pTHX_ I32 flags, OP* first, OP* trueop, OP* falseop)
                        __attribute__malloc__
-                       __attribute__warn_unused_result__;
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_2);
 
 PERL_CALLCONV CV*      Perl_newCONSTSUB(pTHX_ HV* stash, const char* name, SV* sv);
 PERL_CALLCONV void     Perl_newFORM(pTHX_ I32 floor, OP* o, OP* block);
-PERL_CALLCONV OP*      Perl_newFOROP(pTHX_ I32 flags, char* label, line_t forline, OP* sclr, OP* expr, OP*block, OP*cont)
+PERL_CALLCONV OP*      Perl_newFOROP(pTHX_ I32 flags, char* label, line_t forline, OP* sv, OP* expr, OP* block, OP* cont)
                        __attribute__malloc__
-                       __attribute__warn_unused_result__;
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_5);
 
 PERL_CALLCONV OP*      Perl_newLOGOP(pTHX_ I32 optype, I32 flags, OP* left, OP* right)
                        __attribute__malloc__
-                       __attribute__warn_unused_result__;
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_4);
 
 PERL_CALLCONV OP*      Perl_newLOOPEX(pTHX_ I32 type, OP* label)
                        __attribute__malloc__
-                       __attribute__warn_unused_result__;
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_2);
 
 PERL_CALLCONV OP*      Perl_newLOOPOP(pTHX_ I32 flags, I32 debuggable, OP* expr, OP* block)
                        __attribute__malloc__
@@ -915,7 +1412,9 @@ PERL_CALLCONV void Perl_newPROG(pTHX_ OP* o)
 
 PERL_CALLCONV OP*      Perl_newRANGE(pTHX_ I32 flags, OP* left, OP* right)
                        __attribute__malloc__
-                       __attribute__warn_unused_result__;
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
 
 PERL_CALLCONV OP*      Perl_newSLICEOP(pTHX_ I32 flags, OP* subscript, OP* listop)
                        __attribute__malloc__
@@ -928,6 +1427,7 @@ PERL_CALLCONV OP*  Perl_newSTATEOP(pTHX_ I32 flags, char* label, OP* o)
 PERL_CALLCONV CV*      Perl_newSUB(pTHX_ I32 floor, OP* o, OP* proto, OP* block);
 PERL_CALLCONV CV*      Perl_newXS(pTHX_ const char* name, XSUBADDR_t f, const char* filename)
                        __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
                        __attribute__nonnull__(pTHX_3);
 
 PERL_CALLCONV AV*      Perl_newAV(pTHX)
@@ -949,11 +1449,13 @@ PERL_CALLCONV OP*        Perl_newCVREF(pTHX_ I32 flags, OP* o)
 
 PERL_CALLCONV OP*      Perl_newGVOP(pTHX_ I32 type, I32 flags, GV* gv)
                        __attribute__malloc__
-                       __attribute__warn_unused_result__;
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_3);
 
 PERL_CALLCONV GV*      Perl_newGVgen(pTHX_ const char* pack)
                        __attribute__malloc__
-                       __attribute__warn_unused_result__;
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV OP*      Perl_newGVREF(pTHX_ I32 type, OP* o)
                        __attribute__malloc__
@@ -1047,12 +1549,18 @@ PERL_CALLCONV SV*       Perl_newSVpvn_share(pTHX_ const char* s, I32 len, U32 hash)
 PERL_CALLCONV SV*      Perl_newSVpvf(pTHX_ const char* pat, ...)
                        __attribute__malloc__
                        __attribute__warn_unused_result__
-                       __attribute__format__(__printf__,pTHX_1,pTHX_2);
+                       __attribute__format__(__printf__,pTHX_1,pTHX_2)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV SV*      Perl_vnewSVpvf(pTHX_ const char* pat, va_list* args)
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV SV*      Perl_vnewSVpvf(pTHX_ const char* pat, va_list* args);
 PERL_CALLCONV SV*      Perl_newSVrv(pTHX_ SV* rv, const char* classname)
                        __attribute__malloc__
-                       __attribute__warn_unused_result__;
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV SV*      Perl_newSVsv(pTHX_ SV* old)
                        __attribute__malloc__
@@ -1074,33 +1582,56 @@ PERL_CALLCONV char*     Perl_scan_vstring(pTHX_ const char *vstr, SV *sv)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
 
-PERL_CALLCONV char*    Perl_scan_version(pTHX_ const char *vstr, SV *sv, bool qv)
+PERL_CALLCONV const char*      Perl_scan_version(pTHX_ const char *vstr, SV *sv, bool qv)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
 
-PERL_CALLCONV SV*      Perl_new_version(pTHX_ SV *ver);
-PERL_CALLCONV SV*      Perl_upg_version(pTHX_ SV *ver);
-PERL_CALLCONV SV*      Perl_vnumify(pTHX_ SV *vs);
-PERL_CALLCONV SV*      Perl_vnormal(pTHX_ SV *vs);
-PERL_CALLCONV SV*      Perl_vstringify(pTHX_ SV *vs);
+PERL_CALLCONV SV*      Perl_new_version(pTHX_ SV *ver)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV SV*      Perl_upg_version(pTHX_ SV *ver)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV bool     Perl_vverify(pTHX_ SV *vs)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV SV*      Perl_vnumify(pTHX_ SV *vs)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV SV*      Perl_vnormal(pTHX_ SV *vs)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV SV*      Perl_vstringify(pTHX_ SV *vs)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV int      Perl_vcmp(pTHX_ SV *lvs, SV *rvs)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
 
-PERL_CALLCONV PerlIO*  Perl_nextargv(pTHX_ GV* gv);
+PERL_CALLCONV PerlIO*  Perl_nextargv(pTHX_ GV* gv)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV char*    Perl_ninstr(pTHX_ const char* big, const char* bigend, const char* little, const char* lend)
-                       __attribute__pure__;
+                       __attribute__pure__
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_4);
 
 PERL_CALLCONV OP*      Perl_oopsCV(pTHX_ OP* o)
-                       __attribute__noreturn__;
+                       __attribute__noreturn__
+                       __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV void     Perl_op_free(pTHX_ OP* arg);
-PERL_CALLCONV void     Perl_package(pTHX_ OP* o);
+PERL_CALLCONV void     Perl_package(pTHX_ OP* o)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV PADOFFSET        Perl_pad_alloc(pTHX_ I32 optype, U32 tmptype);
 PERL_CALLCONV PADOFFSET        Perl_allocmy(pTHX_ char* name)
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV PADOFFSET        Perl_pad_findmy(pTHX_ const char* name)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV PADOFFSET        Perl_find_rundefsvoffset(pTHX);
@@ -1118,12 +1649,17 @@ PERL_CALLCONV void      Perl_pad_free(pTHX_ PADOFFSET po);
 PERL_CALLCONV void     Perl_pad_reset(pTHX);
 PERL_CALLCONV void     Perl_pad_swipe(pTHX_ PADOFFSET po, bool refadjust);
 PERL_CALLCONV void     Perl_peep(pTHX_ OP* o);
-PERL_CALLCONV PerlIO*  Perl_start_glob(pTHX_ SV* pattern, IO *io);
+PERL_CALLCONV PerlIO*  Perl_start_glob(pTHX_ SV* pattern, IO *io)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
 #if defined(USE_REENTRANT_API)
 PERL_CALLCONV void     Perl_reentrant_size(pTHX);
 PERL_CALLCONV void     Perl_reentrant_init(pTHX);
 PERL_CALLCONV void     Perl_reentrant_free(pTHX);
-PERL_CALLCONV void*    Perl_reentrant_retry(const char*, ...);
+PERL_CALLCONV void*    Perl_reentrant_retry(const char*, ...)
+                       __attribute__nonnull__(1);
+
 #endif
 PERL_CALLCONV void     Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr);
 PERL_CALLCONV I32      Perl_call_argv(pTHX_ const char* sub_name, I32 flags, char** argv)
@@ -1136,8 +1672,13 @@ PERL_CALLCONV I32        Perl_call_method(pTHX_ const char* methname, I32 flags)
 PERL_CALLCONV I32      Perl_call_pv(pTHX_ const char* sub_name, I32 flags)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV I32      Perl_call_sv(pTHX_ SV* sv, I32 flags);
+PERL_CALLCONV I32      Perl_call_sv(pTHX_ SV* sv, I32 flags)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV void     Perl_despatch_signals(pTHX);
+PERL_CALLCONV OP *     Perl_doref(pTHX_ OP *o, I32 type, bool set_op_ref)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV SV*      Perl_eval_pv(pTHX_ const char* p, I32 croak_on_error)
                        __attribute__nonnull__(pTHX_1);
 
@@ -1150,28 +1691,43 @@ PERL_CALLCONV SV*       Perl_get_sv(pTHX_ const char* name, I32 create)
 PERL_CALLCONV AV*      Perl_get_av(pTHX_ const char* name, I32 create)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV HV*      Perl_get_hv(pTHX_ const char* name, I32 create);
-PERL_CALLCONV CV*      Perl_get_cv(pTHX_ const char* name, I32 create);
-PERL_CALLCONV int      Perl_init_i18nl10n(pTHX_ int printwarn);
-PERL_CALLCONV int      Perl_init_i18nl14n(pTHX_ int printwarn);
-PERL_CALLCONV void     Perl_new_collate(pTHX_ char* newcoll)
+PERL_CALLCONV HV*      Perl_get_hv(pTHX_ const char* name, I32 create)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV void     Perl_new_ctype(pTHX_ char* newctype)
+PERL_CALLCONV CV*      Perl_get_cv(pTHX_ const char* name, I32 create)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV void     Perl_new_numeric(pTHX_ char* newcoll)
+PERL_CALLCONV int      Perl_init_i18nl10n(pTHX_ int printwarn);
+PERL_CALLCONV int      Perl_init_i18nl14n(pTHX_ int printwarn);
+PERL_CALLCONV void     Perl_new_collate(pTHX_ const char* newcoll);
+PERL_CALLCONV void     Perl_new_ctype(pTHX_ const char* newctype)
                        __attribute__nonnull__(pTHX_1);
 
+PERL_CALLCONV void     Perl_new_numeric(pTHX_ const char* newcoll);
 PERL_CALLCONV void     Perl_set_numeric_local(pTHX);
 PERL_CALLCONV void     Perl_set_numeric_radix(pTHX);
 PERL_CALLCONV void     Perl_set_numeric_standard(pTHX);
 PERL_CALLCONV void     Perl_require_pv(pTHX_ const char* pv)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV void     Perl_pack_cat(pTHX_ SV *cat, const char *pat, const char *patend, SV **beglist, SV **endlist, SV ***next_in_list, U32 flags);
-PERL_CALLCONV void     Perl_packlist(pTHX_ SV *cat, const char *pat, const char *patend, SV **beglist, SV **endlist);
+PERL_CALLCONV void     Perl_pack_cat(pTHX_ SV *cat, const char *pat, const char *patend, SV **beglist, SV **endlist, SV ***next_in_list, U32 flags)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_4)
+                       __attribute__nonnull__(pTHX_5)
+                       __attribute__nonnull__(pTHX_6);
+
+PERL_CALLCONV void     Perl_packlist(pTHX_ SV *cat, const char *pat, const char *patend, SV **beglist, SV **endlist)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_4)
+                       __attribute__nonnull__(pTHX_5);
+
+#ifdef PERL_USES_PL_PIDSTATUS
 PERL_CALLCONV void     Perl_pidgone(pTHX_ Pid_t pid, int status);
+#endif
 PERL_CALLCONV void     Perl_pmflag(pTHX_ U32* pmfl, int ch)
                        __attribute__nonnull__(pTHX_1);
 
@@ -1181,17 +1737,20 @@ PERL_CALLCONV OP*       Perl_pmruntime(pTHX_ OP* pm, OP* expr, bool isreg)
 
 PERL_CALLCONV OP*      Perl_pmtrans(pTHX_ OP* o, OP* expr, OP* repl)
                        __attribute__nonnull__(pTHX_1)
-                       __attribute__nonnull__(pTHX_2);
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
 
 PERL_CALLCONV void     Perl_pop_scope(pTHX);
 PERL_CALLCONV OP*      Perl_prepend_elem(pTHX_ I32 optype, OP* head, OP* tail);
 PERL_CALLCONV void     Perl_push_scope(pTHX);
-PERL_CALLCONV OP*      Perl_ref(pTHX_ OP* o, I32 type);
+/* PERL_CALLCONV OP*   ref(pTHX_ OP* o, I32 type); */
 PERL_CALLCONV OP*      Perl_refkids(pTHX_ OP* o, I32 type);
 PERL_CALLCONV void     Perl_regdump(pTHX_ regexp* r)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV SV*      Perl_regclass_swash(pTHX_ const struct regnode *n, bool doinit, SV **listsvp, SV **altsvp);
+PERL_CALLCONV SV*      Perl_regclass_swash(pTHX_ const struct regnode *n, bool doinit, SV **listsvp, SV **altsvp)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV I32      Perl_pregexec(pTHX_ regexp* prog, char* stringarg, char* strend, char* strbeg, I32 minend, SV* screamer, U32 nosave)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2)
@@ -1205,19 +1764,29 @@ PERL_CALLCONV regexp*   Perl_pregcomp(pTHX_ char* exp, char* xend, PMOP* pm)
                        __attribute__nonnull__(pTHX_2)
                        __attribute__nonnull__(pTHX_3);
 
-PERL_CALLCONV char*    Perl_re_intuit_start(pTHX_ regexp* prog, SV* sv, char* strpos, char* strend, U32 flags, struct re_scream_pos_data_s *data);
-PERL_CALLCONV SV*      Perl_re_intuit_string(pTHX_ regexp* prog);
+PERL_CALLCONV char*    Perl_re_intuit_start(pTHX_ regexp* prog, SV* sv, char* strpos, char* strend, U32 flags, struct re_scream_pos_data_s *data)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_4);
+
+PERL_CALLCONV SV*      Perl_re_intuit_string(pTHX_ regexp* prog)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV I32      Perl_regexec_flags(pTHX_ regexp* prog, char* stringarg, char* strend, char* strbeg, I32 minend, SV* screamer, void* data, U32 flags)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2)
                        __attribute__nonnull__(pTHX_3)
-                       __attribute__nonnull__(pTHX_4);
+                       __attribute__nonnull__(pTHX_4)
+                       __attribute__nonnull__(pTHX_6);
 
 PERL_CALLCONV regnode* Perl_regnext(pTHX_ regnode* p)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV void     Perl_regprop(pTHX_ SV* sv, const regnode* o);
+PERL_CALLCONV void     Perl_regprop(pTHX_ SV* sv, const regnode* o)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
 PERL_CALLCONV void     Perl_repeatcpy(pTHX_ char* to, const char* from, I32 len, I32 count)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
@@ -1231,7 +1800,9 @@ PERL_CALLCONV char*       Perl_rninstr(pTHX_ const char* big, const char* bigend, cons
 
 PERL_CALLCONV Sighandler_t     Perl_rsignal(pTHX_ int i, Sighandler_t t);
 PERL_CALLCONV int      Perl_rsignal_restore(pTHX_ int i, Sigsave_t* t);
-PERL_CALLCONV int      Perl_rsignal_save(pTHX_ int i, Sighandler_t t1, Sigsave_t* t2);
+PERL_CALLCONV int      Perl_rsignal_save(pTHX_ int i, Sighandler_t t1, Sigsave_t* t2)
+                       __attribute__nonnull__(pTHX_3);
+
 PERL_CALLCONV Sighandler_t     Perl_rsignal_state(pTHX_ int i);
 PERL_CALLCONV void     Perl_rxres_free(pTHX_ void** rsp)
                        __attribute__nonnull__(pTHX_1);
@@ -1250,51 +1821,125 @@ PERL_CALLCONV I32      Perl_same_dirent(pTHX_ const char* a, const char* b)
                        __attribute__nonnull__(pTHX_2);
 
 #endif
-PERL_CALLCONV char*    Perl_savepv(pTHX_ const char* pv);
-PERL_CALLCONV char*    Perl_savesharedpv(pTHX_ const char* pv);
-PERL_CALLCONV char*    Perl_savepvn(pTHX_ const char* pv, I32 len);
+PERL_CALLCONV char*    Perl_savepv(pTHX_ const char* pv)
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__;
+
+PERL_CALLCONV char*    Perl_savepvn(pTHX_ const char* pv, I32 len)
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__;
+
+PERL_CALLCONV char*    Perl_savesharedpv(pTHX_ const char* pv)
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__;
+
+PERL_CALLCONV char*    Perl_savesvpv(pTHX_ SV* sv)
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV void     Perl_savestack_grow(pTHX);
 PERL_CALLCONV void     Perl_savestack_grow_cnt(pTHX_ I32 need);
-PERL_CALLCONV void     Perl_save_aelem(pTHX_ const AV* av, I32 idx, SV **sptr);
+PERL_CALLCONV void     Perl_save_aelem(pTHX_ const AV* av, I32 idx, SV **sptr)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_3);
+
 PERL_CALLCONV I32      Perl_save_alloc(pTHX_ I32 size, I32 pad);
-PERL_CALLCONV void     Perl_save_aptr(pTHX_ AV** aptr);
-PERL_CALLCONV AV*      Perl_save_ary(pTHX_ GV* gv);
-PERL_CALLCONV void     Perl_save_bool(pTHX_ bool* boolp);
-PERL_CALLCONV void     Perl_save_clearsv(pTHX_ SV** svp);
-PERL_CALLCONV void     Perl_save_delete(pTHX_ HV* hv, char* key, I32 klen);
-PERL_CALLCONV void     Perl_save_destructor(pTHX_ DESTRUCTORFUNC_NOCONTEXT_t f, void* p);
+PERL_CALLCONV void     Perl_save_aptr(pTHX_ AV** aptr)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV AV*      Perl_save_ary(pTHX_ GV* gv)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_save_bool(pTHX_ bool* boolp)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_save_clearsv(pTHX_ SV** svp)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_save_delete(pTHX_ HV* hv, char* key, I32 klen)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_save_destructor(pTHX_ DESTRUCTORFUNC_NOCONTEXT_t f, void* p)
+                       __attribute__nonnull__(pTHX_2);
+
 PERL_CALLCONV void     Perl_save_destructor_x(pTHX_ DESTRUCTORFUNC_t f, void* p);
 PERL_CALLCONV void     Perl_save_freesv(pTHX_ SV* sv);
 PERL_CALLCONV void     Perl_save_freeop(pTHX_ OP* o);
 PERL_CALLCONV void     Perl_save_freepv(pTHX_ char* pv);
-PERL_CALLCONV void     Perl_save_generic_svref(pTHX_ SV** sptr);
-PERL_CALLCONV void     Perl_save_generic_pvref(pTHX_ char** str);
-PERL_CALLCONV void     Perl_save_shared_pvref(pTHX_ char** str);
-PERL_CALLCONV void     Perl_save_gp(pTHX_ GV* gv, I32 empty);
-PERL_CALLCONV HV*      Perl_save_hash(pTHX_ GV* gv);
-PERL_CALLCONV void     Perl_save_helem(pTHX_ HV* hv, SV *key, SV **sptr);
+PERL_CALLCONV void     Perl_save_generic_svref(pTHX_ SV** sptr)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_save_generic_pvref(pTHX_ char** str)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_save_shared_pvref(pTHX_ char** str)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_save_gp(pTHX_ GV* gv, I32 empty)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV HV*      Perl_save_hash(pTHX_ GV* gv)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_save_helem(pTHX_ HV* hv, SV *key, SV **sptr)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+
 PERL_CALLCONV void     Perl_save_hints(pTHX)
                        __attribute__noreturn__;
 
-PERL_CALLCONV void     Perl_save_hptr(pTHX_ HV** hptr);
-PERL_CALLCONV void     Perl_save_I16(pTHX_ I16* intp);
-PERL_CALLCONV void     Perl_save_I32(pTHX_ I32* intp);
-PERL_CALLCONV void     Perl_save_I8(pTHX_ I8* bytep);
-PERL_CALLCONV void     Perl_save_int(pTHX_ int* intp);
-PERL_CALLCONV void     Perl_save_item(pTHX_ SV* item);
-PERL_CALLCONV void     Perl_save_iv(pTHX_ IV* iv);
-PERL_CALLCONV void     Perl_save_list(pTHX_ SV** sarg, I32 maxsarg);
-PERL_CALLCONV void     Perl_save_long(pTHX_ long* longp);
-PERL_CALLCONV void     Perl_save_mortalizesv(pTHX_ SV* sv);
+PERL_CALLCONV void     Perl_save_hptr(pTHX_ HV** hptr)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_save_I16(pTHX_ I16* intp)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_save_I32(pTHX_ I32* intp)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_save_I8(pTHX_ I8* bytep)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_save_int(pTHX_ int* intp)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_save_item(pTHX_ SV* item)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_save_iv(pTHX_ IV* iv)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_save_list(pTHX_ SV** sarg, I32 maxsarg)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_save_long(pTHX_ long* longp)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_save_mortalizesv(pTHX_ SV* sv)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV void     Perl_save_nogv(pTHX_ GV* gv);
 PERL_CALLCONV void     Perl_save_op(pTHX);
-PERL_CALLCONV SV*      Perl_save_scalar(pTHX_ GV* gv);
-PERL_CALLCONV void     Perl_save_pptr(pTHX_ char** pptr);
-PERL_CALLCONV void     Perl_save_vptr(pTHX_ void* pptr);
+PERL_CALLCONV SV*      Perl_save_scalar(pTHX_ GV* gv)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_save_pptr(pTHX_ char** pptr)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_save_vptr(pTHX_ void* pptr)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV void     Perl_save_re_context(pTHX);
 PERL_CALLCONV void     Perl_save_padsv(pTHX_ PADOFFSET off);
-PERL_CALLCONV void     Perl_save_sptr(pTHX_ SV** sptr);
-PERL_CALLCONV SV*      Perl_save_svref(pTHX_ SV** sptr);
+PERL_CALLCONV void     Perl_save_sptr(pTHX_ SV** sptr)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV SV*      Perl_save_svref(pTHX_ SV** sptr)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV SV**     Perl_save_threadsv(pTHX_ PADOFFSET i)
                        __attribute__noreturn__;
 
@@ -1302,33 +1947,61 @@ PERL_CALLCONV OP*       Perl_sawparens(pTHX_ OP* o);
 PERL_CALLCONV OP*      Perl_scalar(pTHX_ OP* o);
 PERL_CALLCONV OP*      Perl_scalarkids(pTHX_ OP* o);
 PERL_CALLCONV OP*      Perl_scalarseq(pTHX_ OP* o);
-PERL_CALLCONV OP*      Perl_scalarvoid(pTHX_ OP* o);
-PERL_CALLCONV NV       Perl_scan_bin(pTHX_ const char* start, STRLEN len, STRLEN* retlen);
-PERL_CALLCONV NV       Perl_scan_hex(pTHX_ const char* start, STRLEN len, STRLEN* retlen);
-PERL_CALLCONV char*    Perl_scan_num(pTHX_ const char* s, YYSTYPE *lvalp);
-PERL_CALLCONV NV       Perl_scan_oct(pTHX_ const char* start, STRLEN len, STRLEN* retlen);
+PERL_CALLCONV OP*      Perl_scalarvoid(pTHX_ OP* o)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV NV       Perl_scan_bin(pTHX_ const char* start, STRLEN len, STRLEN* retlen)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_3);
+
+PERL_CALLCONV NV       Perl_scan_hex(pTHX_ const char* start, STRLEN len, STRLEN* retlen)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_3);
+
+PERL_CALLCONV char*    Perl_scan_num(pTHX_ const char* s, YYSTYPE *lvalp)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV NV       Perl_scan_oct(pTHX_ const char* start, STRLEN len, STRLEN* retlen)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_3);
+
 PERL_CALLCONV OP*      Perl_scope(pTHX_ OP* o);
-PERL_CALLCONV char*    Perl_screaminstr(pTHX_ SV* bigsv, SV* littlesv, I32 start_shift, I32 end_shift, I32 *state, I32 last);
+PERL_CALLCONV char*    Perl_screaminstr(pTHX_ SV *bigstr, SV *littlestr, I32 start_shift, I32 end_shift, I32 *oldposp, I32 last)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_5);
+
 #if !defined(VMS)
-PERL_CALLCONV I32      Perl_setenv_getix(pTHX_ const char* nam);
+PERL_CALLCONV I32      Perl_setenv_getix(pTHX_ const char* nam)
+                       __attribute__nonnull__(pTHX_1);
+
 #endif
 PERL_CALLCONV void     Perl_setdefout(pTHX_ GV* gv);
-PERL_CALLCONV HEK*     Perl_share_hek(pTHX_ const char* sv, I32 len, U32 hash);
+PERL_CALLCONV HEK*     Perl_share_hek(pTHX_ const char* str, I32 len, U32 hash)
+                       __attribute__nonnull__(pTHX_1);
+
+#if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
+PERL_CALLCONV Signal_t Perl_sighandler(int sig, ...);
+PERL_CALLCONV Signal_t Perl_csighandler(int sig, ...);
+#else
 PERL_CALLCONV Signal_t Perl_sighandler(int sig);
 PERL_CALLCONV Signal_t Perl_csighandler(int sig);
+#endif
 PERL_CALLCONV SV**     Perl_stack_grow(pTHX_ SV** sp, SV**p, int n)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
 
-PERL_CALLCONV I32      Perl_start_subparse(pTHX_ I32 is_format, U32 flags)
-                       __attribute__warn_unused_result__;
+PERL_CALLCONV I32      Perl_start_subparse(pTHX_ I32 is_format, U32 flags);
+PERL_CALLCONV void     Perl_sub_crush_depth(pTHX_ CV* cv)
+                       __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV void     Perl_sub_crush_depth(pTHX_ CV* cv);
 PERL_CALLCONV bool     Perl_sv_2bool(pTHX_ SV* sv)
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV CV*      Perl_sv_2cv(pTHX_ SV* sv, HV** st, GV** gvp, I32 lref)
-                       __attribute__nonnull__(pTHX_1);
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
 
 PERL_CALLCONV IO*      Perl_sv_2io(pTHX_ SV* sv)
                        __attribute__nonnull__(pTHX_1);
@@ -1339,9 +2012,7 @@ PERL_CALLCONV IO* Perl_sv_2io(pTHX_ SV* sv)
 PERL_CALLCONV IV       Perl_sv_2iv_flags(pTHX_ SV* sv, I32 flags)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV SV*      Perl_sv_2mortal(pTHX_ SV* sv)
-                       __attribute__nonnull__(pTHX_1);
-
+PERL_CALLCONV SV*      Perl_sv_2mortal(pTHX_ SV* sv);
 PERL_CALLCONV NV       Perl_sv_2nv(pTHX_ SV* sv)
                        __attribute__nonnull__(pTHX_1);
 
@@ -1387,9 +2058,7 @@ PERL_CALLCONV char*       Perl_sv_pvbyten(pTHX_ SV *sv, STRLEN *len)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
 
-PERL_CALLCONV I32      Perl_sv_true(pTHX_ SV *sv)
-                       __attribute__nonnull__(pTHX_1);
-
+PERL_CALLCONV I32      Perl_sv_true(pTHX_ SV *sv);
 PERL_CALLCONV void     Perl_sv_add_arena(pTHX_ char* ptr, U32 size, U32 flags)
                        __attribute__nonnull__(pTHX_1);
 
@@ -1402,16 +2071,20 @@ PERL_CALLCONV SV*       Perl_sv_bless(pTHX_ SV* sv, HV* stash)
 
 PERL_CALLCONV void     Perl_sv_catpvf(pTHX_ SV* sv, const char* pat, ...)
                        __attribute__format__(__printf__,pTHX_2,pTHX_3)
-                       __attribute__nonnull__(pTHX_1);
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
 
 PERL_CALLCONV void     Perl_sv_vcatpvf(pTHX_ SV* sv, const char* pat, va_list* args)
-                       __attribute__nonnull__(pTHX_1);
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
 
 PERL_CALLCONV void     Perl_sv_catpv(pTHX_ SV* sv, const char* ptr)
-                       __attribute__nonnull__(pTHX_1);
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
 
 /* PERL_CALLCONV void  sv_catpvn(pTHX_ SV* sv, const char* ptr, STRLEN len)
-                       __attribute__nonnull__(pTHX_1); */
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2); */
 
 /* PERL_CALLCONV void  sv_catsv(pTHX_ SV* dsv, SV* ssv)
                        __attribute__nonnull__(pTHX_1); */
@@ -1458,10 +2131,7 @@ PERL_CALLCONV bool       Perl_sv_derived_from(pTHX_ SV* sv, const char* name)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
 
-PERL_CALLCONV I32      Perl_sv_eq(pTHX_ SV* sv1, SV* sv2)
-                       __attribute__nonnull__(pTHX_1)
-                       __attribute__nonnull__(pTHX_2);
-
+PERL_CALLCONV I32      Perl_sv_eq(pTHX_ SV* sv1, SV* sv2);
 PERL_CALLCONV void     Perl_sv_free(pTHX_ SV* sv);
 PERL_CALLCONV void     Perl_sv_free2(pTHX_ SV* sv)
                        __attribute__nonnull__(pTHX_1);
@@ -1482,17 +2152,11 @@ PERL_CALLCONV void      Perl_sv_insert(pTHX_ SV* bigsv, STRLEN offset, STRLEN len, co
                        __attribute__nonnull__(pTHX_4);
 
 PERL_CALLCONV int      Perl_sv_isa(pTHX_ SV* sv, const char* name)
-                       __attribute__nonnull__(pTHX_1);
-
-PERL_CALLCONV int      Perl_sv_isobject(pTHX_ SV* sv)
-                       __attribute__nonnull__(pTHX_1);
-
-PERL_CALLCONV STRLEN   Perl_sv_len(pTHX_ SV* sv)
-                       __attribute__nonnull__(pTHX_1);
-
-PERL_CALLCONV STRLEN   Perl_sv_len_utf8(pTHX_ SV* sv)
-                       __attribute__nonnull__(pTHX_1);
+                       __attribute__nonnull__(pTHX_2);
 
+PERL_CALLCONV int      Perl_sv_isobject(pTHX_ SV* sv);
+PERL_CALLCONV STRLEN   Perl_sv_len(pTHX_ SV* sv);
+PERL_CALLCONV STRLEN   Perl_sv_len_utf8(pTHX_ SV* sv);
 PERL_CALLCONV void     Perl_sv_magic(pTHX_ SV* sv, SV* obj, int how, const char* name, I32 namlen)
                        __attribute__nonnull__(pTHX_1);
 
@@ -1500,7 +2164,8 @@ PERL_CALLCONV MAGIC *     Perl_sv_magicext(pTHX_ SV* sv, SV* obj, int how, const MGV
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV SV*      Perl_sv_mortalcopy(pTHX_ SV* oldsv)
-                       __attribute__nonnull__(pTHX_1);
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__;
 
 PERL_CALLCONV SV*      Perl_sv_newmortal(pTHX)
                        __attribute__warn_unused_result__;
@@ -1513,11 +2178,26 @@ PERL_CALLCONV void      Perl_sv_pos_u2b(pTHX_ SV* sv, I32* offsetp, I32* lenp)
 PERL_CALLCONV void     Perl_sv_pos_b2u(pTHX_ SV* sv, I32* offsetp)
                        __attribute__nonnull__(pTHX_2);
 
-/* PERL_CALLCONV char* sv_pvn_force(pTHX_ SV* sv, STRLEN* lp); */
-PERL_CALLCONV char*    Perl_sv_pvutf8n_force(pTHX_ SV* sv, STRLEN* lp);
-PERL_CALLCONV char*    Perl_sv_pvbyten_force(pTHX_ SV* sv, STRLEN* lp);
-PERL_CALLCONV char*    Perl_sv_recode_to_utf8(pTHX_ SV* sv, SV *encoding);
-PERL_CALLCONV bool     Perl_sv_cat_decode(pTHX_ SV* dsv, SV *encoding, SV *ssv, int *offset, char* tstr, int tlen);
+/* PERL_CALLCONV char* sv_pvn_force(pTHX_ SV* sv, STRLEN* lp)
+                       __attribute__nonnull__(pTHX_1); */
+
+PERL_CALLCONV char*    Perl_sv_pvutf8n_force(pTHX_ SV* sv, STRLEN* lp)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV char*    Perl_sv_pvbyten_force(pTHX_ SV* sv, STRLEN* lp)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV char*    Perl_sv_recode_to_utf8(pTHX_ SV* sv, SV *encoding)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV bool     Perl_sv_cat_decode(pTHX_ SV* dsv, SV *encoding, SV *ssv, int *offset, char* tstr, int tlen)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_4)
+                       __attribute__nonnull__(pTHX_5);
+
 PERL_CALLCONV char*    Perl_sv_reftype(pTHX_ const SV* sv, int ob)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
@@ -1531,68 +2211,114 @@ PERL_CALLCONV void     Perl_sv_reset(pTHX_ const char* s, HV* stash)
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV void     Perl_sv_setpvf(pTHX_ SV* sv, const char* pat, ...)
-                       __attribute__format__(__printf__,pTHX_2,pTHX_3);
+                       __attribute__format__(__printf__,pTHX_2,pTHX_3)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
 
-PERL_CALLCONV void     Perl_sv_vsetpvf(pTHX_ SV* sv, const char* pat, va_list* args);
-PERL_CALLCONV void     Perl_sv_setiv(pTHX_ SV* sv, IV num);
-PERL_CALLCONV void     Perl_sv_setpviv(pTHX_ SV* sv, IV num)
+PERL_CALLCONV void     Perl_sv_vsetpvf(pTHX_ SV* sv, const char* pat, va_list* args)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_sv_setiv(pTHX_ SV* sv, IV num)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV void     Perl_sv_setuv(pTHX_ SV* sv, UV num);
-PERL_CALLCONV void     Perl_sv_setnv(pTHX_ SV* sv, NV num);
-PERL_CALLCONV SV*      Perl_sv_setref_iv(pTHX_ SV* rv, const char* classname, IV iv);
-PERL_CALLCONV SV*      Perl_sv_setref_uv(pTHX_ SV* rv, const char* classname, UV uv);
-PERL_CALLCONV SV*      Perl_sv_setref_nv(pTHX_ SV* rv, const char* classname, NV nv);
-PERL_CALLCONV SV*      Perl_sv_setref_pv(pTHX_ SV* rv, const char* classname, void* pv);
-PERL_CALLCONV SV*      Perl_sv_setref_pvn(pTHX_ SV* rv, const char* classname, char* pv, STRLEN n);
-PERL_CALLCONV void     Perl_sv_setpv(pTHX_ SV* sv, const char* ptr);
-PERL_CALLCONV void     Perl_sv_setpvn(pTHX_ SV* sv, const char* ptr, STRLEN len)
+PERL_CALLCONV void     Perl_sv_setpviv(pTHX_ SV* sv, IV num)
                        __attribute__nonnull__(pTHX_1);
 
-/* PERL_CALLCONV void  sv_setsv(pTHX_ SV* dsv, SV* ssv); */
-PERL_CALLCONV void     Perl_sv_taint(pTHX_ SV* sv);
-PERL_CALLCONV bool     Perl_sv_tainted(pTHX_ SV* sv);
-PERL_CALLCONV int      Perl_sv_unmagic(pTHX_ SV* sv, int type)
+PERL_CALLCONV void     Perl_sv_setuv(pTHX_ SV* sv, UV num)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV void     Perl_sv_unref(pTHX_ SV* sv)
+PERL_CALLCONV void     Perl_sv_setnv(pTHX_ SV* sv, NV num)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV void     Perl_sv_unref_flags(pTHX_ SV* sv, U32 flags)
+PERL_CALLCONV SV*      Perl_sv_setref_iv(pTHX_ SV* rv, const char* classname, IV iv)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV void     Perl_sv_untaint(pTHX_ SV* sv)
+PERL_CALLCONV SV*      Perl_sv_setref_uv(pTHX_ SV* rv, const char* classname, UV uv)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV bool     Perl_sv_upgrade(pTHX_ SV* sv, U32 mt)
+PERL_CALLCONV SV*      Perl_sv_setref_nv(pTHX_ SV* rv, const char* classname, NV nv)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV void     Perl_sv_usepvn(pTHX_ SV* sv, char* ptr, STRLEN len)
+PERL_CALLCONV SV*      Perl_sv_setref_pv(pTHX_ SV* rv, const char* classname, void* pv)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV void     Perl_sv_vcatpvfn(pTHX_ SV* sv, const char* pat, STRLEN patlen, va_list* args, SV** svargs, I32 svmax, bool *maybe_tainted)
+PERL_CALLCONV SV*      Perl_sv_setref_pvn(pTHX_ SV* rv, const char* classname, const char* pv, STRLEN n)
                        __attribute__nonnull__(pTHX_1)
-                       __attribute__nonnull__(pTHX_2);
+                       __attribute__nonnull__(pTHX_3);
 
-PERL_CALLCONV void     Perl_sv_vsetpvfn(pTHX_ SV* sv, const char* pat, STRLEN patlen, va_list* args, SV** svargs, I32 svmax, bool *maybe_tainted)
-                       __attribute__nonnull__(pTHX_1)
-                       __attribute__nonnull__(pTHX_2);
+PERL_CALLCONV void     Perl_sv_setpv(pTHX_ SV* sv, const char* ptr)
+                       __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV NV       Perl_str_to_version(pTHX_ SV *sv);
-PERL_CALLCONV SV*      Perl_swash_init(pTHX_ const char* pkg, const char* name, SV* listsv, I32 minbits, I32 none);
-PERL_CALLCONV UV       Perl_swash_fetch(pTHX_ SV *sv, const U8 *ptr, bool do_utf8);
-PERL_CALLCONV void     Perl_taint_env(pTHX);
-PERL_CALLCONV void     Perl_taint_proper(pTHX_ const char* f, const char* s);
-PERL_CALLCONV UV       Perl_to_utf8_case(pTHX_ const U8 *p, U8* ustrp, STRLEN *lenp, SV **swash, const char *normal, const char *special)
-                       __attribute__nonnull__(pTHX_1)
-                       __attribute__nonnull__(pTHX_2);
+PERL_CALLCONV void     Perl_sv_setpvn(pTHX_ SV* sv, const char* ptr, STRLEN len)
+                       __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV UV       Perl_to_utf8_lower(pTHX_ const U8 *p, U8* ustrp, STRLEN *lenp)
-                       __attribute__nonnull__(pTHX_1)
-                       __attribute__nonnull__(pTHX_2);
+/* PERL_CALLCONV void  sv_setsv(pTHX_ SV* dsv, SV* ssv)
+                       __attribute__nonnull__(pTHX_1); */
 
-PERL_CALLCONV UV       Perl_to_utf8_upper(pTHX_ const U8 *p, U8* ustrp, STRLEN *lenp)
-                       __attribute__nonnull__(pTHX_1)
+/* PERL_CALLCONV void  sv_taint(pTHX_ SV* sv)
+                       __attribute__nonnull__(pTHX_1); */
+
+PERL_CALLCONV bool     Perl_sv_tainted(pTHX_ SV* sv)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV int      Perl_sv_unmagic(pTHX_ SV* sv, int type)
+                       __attribute__nonnull__(pTHX_1);
+
+/* PERL_CALLCONV void  Perl_sv_unref(pTHX_ SV* sv)
+                       __attribute__nonnull__(pTHX_1); */
+
+PERL_CALLCONV void     Perl_sv_unref_flags(pTHX_ SV* sv, U32 flags)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_sv_untaint(pTHX_ SV* sv)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_sv_upgrade(pTHX_ SV* sv, U32 mt)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_sv_usepvn(pTHX_ SV* sv, char* ptr, STRLEN len)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_sv_vcatpvfn(pTHX_ SV* sv, const char* pat, STRLEN patlen, va_list* args, SV** svargs, I32 svmax, bool *maybe_tainted)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_sv_vsetpvfn(pTHX_ SV* sv, const char* pat, STRLEN patlen, va_list* args, SV** svargs, I32 svmax, bool *maybe_tainted)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV NV       Perl_str_to_version(pTHX_ SV *sv)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV SV*      Perl_swash_init(pTHX_ const char* pkg, const char* name, SV* listsv, I32 minbits, I32 none)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+
+PERL_CALLCONV UV       Perl_swash_fetch(pTHX_ SV *sv, const U8 *ptr, bool do_utf8)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_taint_env(pTHX);
+PERL_CALLCONV void     Perl_taint_proper(pTHX_ const char* f, const char* s)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV UV       Perl_to_utf8_case(pTHX_ const U8 *p, U8* ustrp, STRLEN *lenp, SV **swashp, const char *normal, const char *special)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_4)
+                       __attribute__nonnull__(pTHX_5)
+                       __attribute__nonnull__(pTHX_6);
+
+PERL_CALLCONV UV       Perl_to_utf8_lower(pTHX_ const U8 *p, U8* ustrp, STRLEN *lenp)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV UV       Perl_to_utf8_upper(pTHX_ const U8 *p, U8* ustrp, STRLEN *lenp)
+                       __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
 
 PERL_CALLCONV UV       Perl_to_utf8_title(pTHX_ const U8 *p, U8* ustrp, STRLEN *lenp)
@@ -1604,15 +2330,37 @@ PERL_CALLCONV UV        Perl_to_utf8_fold(pTHX_ const U8 *p, U8* ustrp, STRLEN *lenp)
                        __attribute__nonnull__(pTHX_2);
 
 #if defined(UNLINK_ALL_VERSIONS)
-PERL_CALLCONV I32      Perl_unlnk(pTHX_ char* f);
+PERL_CALLCONV I32      Perl_unlnk(pTHX_ const char* f)
+                       __attribute__nonnull__(pTHX_1);
+
 #endif
-PERL_CALLCONV I32      Perl_unpack_str(pTHX_ const char *pat, const char *patend, const char *s, const char *strbeg, const char *strend, char **new_s, I32 ocnt, U32 flags);
-PERL_CALLCONV I32      Perl_unpackstring(pTHX_ const char *pat, const char *patend, const char *s, const char *strend, U32 flags);
+PERL_CALLCONV I32      Perl_unpack_str(pTHX_ const char *pat, const char *patend, const char *s, const char *strbeg, const char *strend, char **new_s, I32 ocnt, U32 flags)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_5);
+
+PERL_CALLCONV I32      Perl_unpackstring(pTHX_ const char *pat, const char *patend, const char *s, const char *strend, U32 flags)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_4);
+
 PERL_CALLCONV void     Perl_unsharepvn(pTHX_ const char* sv, I32 len, U32 hash);
 PERL_CALLCONV void     Perl_unshare_hek(pTHX_ HEK* hek);
-PERL_CALLCONV void     Perl_utilize(pTHX_ int aver, I32 floor, OP* version, OP* idop, OP* arg);
-PERL_CALLCONV U8*      Perl_utf16_to_utf8(pTHX_ U8* p, U8 *d, I32 bytelen, I32 *newlen);
-PERL_CALLCONV U8*      Perl_utf16_to_utf8_reversed(pTHX_ U8* p, U8 *d, I32 bytelen, I32 *newlen);
+PERL_CALLCONV void     Perl_utilize(pTHX_ int aver, I32 floor, OP* version, OP* idop, OP* arg)
+                       __attribute__nonnull__(pTHX_4);
+
+PERL_CALLCONV U8*      Perl_utf16_to_utf8(pTHX_ U8* p, U8 *d, I32 bytelen, I32 *newlen)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_4);
+
+PERL_CALLCONV U8*      Perl_utf16_to_utf8_reversed(pTHX_ U8* p, U8 *d, I32 bytelen, I32 *newlen)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_4);
+
 PERL_CALLCONV STRLEN   Perl_utf8_length(pTHX_ const U8* s, const U8 *e)
                        __attribute__warn_unused_result__
                        __attribute__pure__
@@ -1634,54 +2382,119 @@ PERL_CALLCONV U8*      Perl_utf8_to_bytes(pTHX_ U8 *s, STRLEN *len)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
 
-PERL_CALLCONV U8*      Perl_bytes_from_utf8(pTHX_ const U8 *s, STRLEN *len, bool *is_utf8);
-PERL_CALLCONV U8*      Perl_bytes_to_utf8(pTHX_ const U8 *s, STRLEN *len);
-PERL_CALLCONV UV       Perl_utf8_to_uvchr(pTHX_ const U8 *s, STRLEN* retlen);
-PERL_CALLCONV UV       Perl_utf8_to_uvuni(pTHX_ const U8 *s, STRLEN* retlen);
-PERL_CALLCONV UV       Perl_utf8n_to_uvchr(pTHX_ const U8 *s, STRLEN curlen, STRLEN* retlen, U32 flags);
-PERL_CALLCONV UV       Perl_utf8n_to_uvuni(pTHX_ const U8 *s, STRLEN curlen, STRLEN* retlen, U32 flags);
-PERL_CALLCONV U8*      Perl_uvchr_to_utf8(pTHX_ U8 *d, UV uv)
+PERL_CALLCONV U8*      Perl_bytes_from_utf8(pTHX_ const U8 *s, STRLEN *len, bool *is_utf8)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV U8*      Perl_bytes_to_utf8(pTHX_ const U8 *s, STRLEN *len)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV UV       Perl_utf8_to_uvchr(pTHX_ const U8 *s, STRLEN *retlen)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV U8*      Perl_uvuni_to_utf8(pTHX_ U8 *d, UV uv)
+PERL_CALLCONV UV       Perl_utf8_to_uvuni(pTHX_ const U8 *s, STRLEN *retlen)
                        __attribute__nonnull__(pTHX_1);
 
+
+#ifdef EBCDIC
+PERL_CALLCONV UV       Perl_utf8n_to_uvchr(pTHX_ const U8 *s, STRLEN curlen, STRLEN *retlen, U32 flags)
+                       __attribute__nonnull__(pTHX_1);
+
+#else
+/* PERL_CALLCONV UV    Perl_utf8n_to_uvchr(pTHX_ const U8 *s, STRLEN curlen, STRLEN *retlen, U32 flags)
+                       __attribute__nonnull__(pTHX_1); */
+
+#endif
+
+PERL_CALLCONV UV       Perl_utf8n_to_uvuni(pTHX_ const U8 *s, STRLEN curlen, STRLEN *retlen, U32 flags)
+                       __attribute__nonnull__(pTHX_1);
+
+
+#ifdef EBCDIC
+PERL_CALLCONV U8*      Perl_uvchr_to_utf8(pTHX_ U8 *d, UV uv)
+                       __attribute__nonnull__(pTHX_1);
+
+#else
+/* PERL_CALLCONV U8*   Perl_uvchr_to_utf8(pTHX_ U8 *d, UV uv)
+                       __attribute__nonnull__(pTHX_1); */
+
+#endif
+
+/* PERL_CALLCONV U8*   Perl_uvuni_to_utf8(pTHX_ U8 *d, UV uv)
+                       __attribute__nonnull__(pTHX_1); */
+
 PERL_CALLCONV U8*      Perl_uvchr_to_utf8_flags(pTHX_ U8 *d, UV uv, UV flags)
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV U8*      Perl_uvuni_to_utf8_flags(pTHX_ U8 *d, UV uv, UV flags)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV char*    Perl_pv_uni_display(pTHX_ SV *dsv, const U8 *spv, STRLEN len, STRLEN pvlim, UV flags);
+PERL_CALLCONV char*    Perl_pv_uni_display(pTHX_ SV *dsv, const U8 *spv, STRLEN len, STRLEN pvlim, UV flags)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
 PERL_CALLCONV char*    Perl_sv_uni_display(pTHX_ SV *dsv, SV *ssv, STRLEN pvlim, UV flags)
-                       __attribute__warn_unused_result__;
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_vivify_defelem(pTHX_ SV* sv)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_vivify_ref(pTHX_ SV* sv, U32 to_what)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV I32      Perl_wait4pid(pTHX_ Pid_t pid, int* statusp, int flags)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV U32      Perl_parse_unicode_opts(pTHX_ const char **popt)
+                       __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV void     Perl_vivify_defelem(pTHX_ SV* sv);
-PERL_CALLCONV void     Perl_vivify_ref(pTHX_ SV* sv, U32 to_what);
-PERL_CALLCONV I32      Perl_wait4pid(pTHX_ Pid_t pid, int* statusp, int flags);
-PERL_CALLCONV U32      Perl_parse_unicode_opts(pTHX_ const char **popt);
 PERL_CALLCONV U32      Perl_seed(pTHX);
-PERL_CALLCONV UV       Perl_get_hash_seed(pTHX);
+PERL_CALLCONV UV       Perl_get_hash_seed(pTHX)
+                       __attribute__warn_unused_result__;
+
 PERL_CALLCONV void     Perl_report_evil_fh(pTHX_ const GV *gv, const IO *io, I32 op);
 PERL_CALLCONV void     Perl_report_uninit(pTHX_ SV* uninit_sv);
 PERL_CALLCONV void     Perl_warn(pTHX_ const char* pat, ...)
-                       __attribute__format__(__printf__,pTHX_1,pTHX_2);
+                       __attribute__format__(__printf__,pTHX_1,pTHX_2)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_vwarn(pTHX_ const char* pat, va_list* args)
+                       __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV void     Perl_vwarn(pTHX_ const char* pat, va_list* args);
 PERL_CALLCONV void     Perl_warner(pTHX_ U32 err, const char* pat, ...)
-                       __attribute__format__(__printf__,pTHX_2,pTHX_3);
+                       __attribute__format__(__printf__,pTHX_2,pTHX_3)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_vwarner(pTHX_ U32 err, const char* pat, va_list* args)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_watch(pTHX_ char** addr)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV I32      Perl_whichsig(pTHX_ const char* sig)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_write_to_stderr(pTHX_ const char* message, int msglen)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV int      Perl_yyerror(pTHX_ const char* s)
+                       __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV void     Perl_vwarner(pTHX_ U32 err, const char* pat, va_list* args);
-PERL_CALLCONV void     Perl_watch(pTHX_ char** addr);
-PERL_CALLCONV I32      Perl_whichsig(pTHX_ const char* sig);
-PERL_CALLCONV void     Perl_write_to_stderr(pTHX_ const char* message, int msglen);
-PERL_CALLCONV int      Perl_yyerror(pTHX_ const char* s);
 PERL_CALLCONV int      Perl_yylex(pTHX);
 PERL_CALLCONV int      Perl_yyparse(pTHX);
-PERL_CALLCONV int      Perl_yywarn(pTHX_ const char* s);
+PERL_CALLCONV int      Perl_yywarn(pTHX_ const char* s)
+                       __attribute__nonnull__(pTHX_1);
+
 #if defined(MYMALLOC)
-PERL_CALLCONV void     Perl_dump_mstats(pTHX_ char* s);
-PERL_CALLCONV int      Perl_get_mstats(pTHX_ perl_mstats_t *buf, int buflen, int level);
+PERL_CALLCONV void     Perl_dump_mstats(pTHX_ char* s)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV int      Perl_get_mstats(pTHX_ perl_mstats_t *buf, int buflen, int level)
+                       __attribute__nonnull__(pTHX_1);
+
 #endif
 PERL_CALLCONV Malloc_t Perl_safesysmalloc(MEM_SIZE nbytes)
                        __attribute__malloc__
@@ -1699,91 +2512,250 @@ PERL_CALLCONV Free_t   Perl_safesysfree(Malloc_t where);
 #if defined(PERL_GLOBAL_STRUCT)
 PERL_CALLCONV struct perl_vars *       Perl_GetVars(pTHX);
 PERL_CALLCONV struct perl_vars*        Perl_init_global_struct(pTHX);
-PERL_CALLCONV void     Perl_free_global_struct(pTHX_ struct perl_vars*);
+PERL_CALLCONV void     Perl_free_global_struct(pTHX_ struct perl_vars *plvarsp)
+                       __attribute__nonnull__(pTHX_1);
+
 #endif
 PERL_CALLCONV int      Perl_runops_standard(pTHX);
 PERL_CALLCONV int      Perl_runops_debug(pTHX);
 PERL_CALLCONV void     Perl_sv_catpvf_mg(pTHX_ SV *sv, const char* pat, ...)
-                       __attribute__format__(__printf__,pTHX_2,pTHX_3);
+                       __attribute__format__(__printf__,pTHX_2,pTHX_3)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_sv_vcatpvf_mg(pTHX_ SV* sv, const char* pat, va_list* args)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_sv_catpv_mg(pTHX_ SV *sv, const char *ptr)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+/* PERL_CALLCONV void  Perl_sv_catpvn_mg(pTHX_ SV *sv, const char *ptr, STRLEN len)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2); */
+
+/* PERL_CALLCONV void  Perl_sv_catsv_mg(pTHX_ SV *dstr, SV *sstr)
+                       __attribute__nonnull__(pTHX_1); */
+
+PERL_CALLCONV void     Perl_sv_setpvf_mg(pTHX_ SV *sv, const char* pat, ...)
+                       __attribute__format__(__printf__,pTHX_2,pTHX_3)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_sv_vsetpvf_mg(pTHX_ SV* sv, const char* pat, va_list* args)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_sv_setiv_mg(pTHX_ SV *sv, IV i)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_sv_setpviv_mg(pTHX_ SV *sv, IV iv)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_sv_setuv_mg(pTHX_ SV *sv, UV u)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_sv_setnv_mg(pTHX_ SV *sv, NV num)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_sv_setpv_mg(pTHX_ SV *sv, const char *ptr)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_sv_setpvn_mg(pTHX_ SV *sv, const char *ptr, STRLEN len)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_sv_setsv_mg(pTHX_ SV *dstr, SV *sstr)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_sv_usepvn_mg(pTHX_ SV *sv, char *ptr, STRLEN len)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV MGVTBL*  Perl_get_vtbl(pTHX_ int vtbl_id)
+                       __attribute__warn_unused_result__;
+
+PERL_CALLCONV char*    Perl_pv_display(pTHX_ SV *dsv, const char *pv, STRLEN cur, STRLEN len, STRLEN pvlim)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_dump_indent(pTHX_ I32 level, PerlIO *file, const char* pat, ...)
+                       __attribute__format__(__printf__,pTHX_3,pTHX_4)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+
+PERL_CALLCONV void     Perl_dump_vindent(pTHX_ I32 level, PerlIO *file, const char* pat, va_list *args)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+
+PERL_CALLCONV void     Perl_do_gv_dump(pTHX_ I32 level, PerlIO *file, const char *name, GV *sv)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_4);
+
+PERL_CALLCONV void     Perl_do_gvgv_dump(pTHX_ I32 level, PerlIO *file, const char *name, GV *sv)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_4);
+
+PERL_CALLCONV void     Perl_do_hv_dump(pTHX_ I32 level, PerlIO *file, const char *name, HV *sv)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_4);
+
+PERL_CALLCONV void     Perl_do_magic_dump(pTHX_ I32 level, PerlIO *file, const MAGIC *mg, I32 nest, I32 maxnest, bool dumpops, STRLEN pvlim)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+
+PERL_CALLCONV void     Perl_do_op_dump(pTHX_ I32 level, PerlIO *file, const OP *o)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_do_pmop_dump(pTHX_ I32 level, PerlIO *file, const PMOP *pm)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_do_sv_dump(pTHX_ I32 level, PerlIO *file, SV *sv, I32 nest, I32 maxnest, bool dumpops, STRLEN pvlim)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void     Perl_magic_dump(pTHX_ const MAGIC *mg);
+PERL_CALLCONV void     Perl_reginitcolors(pTHX);
+/* PERL_CALLCONV char* Perl_sv_2pv_nolen(pTHX_ SV* sv)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1); */
+
+/* PERL_CALLCONV char* Perl_sv_2pvutf8_nolen(pTHX_ SV* sv)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1); */
+
+/* PERL_CALLCONV char* Perl_sv_2pvbyte_nolen(pTHX_ SV* sv)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1); */
+
+/* PERL_CALLCONV char* sv_pv(pTHX_ SV *sv)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1); */
+
+/* PERL_CALLCONV char* sv_pvutf8(pTHX_ SV *sv)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1); */
+
+/* PERL_CALLCONV char* sv_pvbyte(pTHX_ SV *sv)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1); */
+
+/* PERL_CALLCONV STRLEN        sv_utf8_upgrade(pTHX_ SV *sv)
+                       __attribute__nonnull__(pTHX_1); */
+
+PERL_CALLCONV bool     Perl_sv_utf8_downgrade(pTHX_ SV *sv, bool fail_ok)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_sv_utf8_encode(pTHX_ SV *sv)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV bool     Perl_sv_utf8_decode(pTHX_ SV *sv)
+                       __attribute__nonnull__(pTHX_1);
+
+/* PERL_CALLCONV void  Perl_sv_force_normal(pTHX_ SV *sv)
+                       __attribute__nonnull__(pTHX_1); */
+
+PERL_CALLCONV void     Perl_sv_force_normal_flags(pTHX_ SV *sv, U32 flags)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_tmps_grow(pTHX_ I32 n);
+PERL_CALLCONV SV*      Perl_sv_rvweaken(pTHX_ SV *sv)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV int      Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV OP*      Perl_newANONATTRSUB(pTHX_ I32 floor, OP *proto, OP *attrs, OP *block);
+PERL_CALLCONV CV*      Perl_newATTRSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block);
+PERL_CALLCONV void     Perl_newMYSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block)
+                       __attribute__noreturn__;
+
+PERL_CALLCONV OP *     Perl_my_attrs(pTHX_ OP *o, OP *attrs)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV void     Perl_boot_core_xsutils(pTHX);
+#if defined(USE_ITHREADS)
+PERL_CALLCONV PERL_CONTEXT*    Perl_cx_dup(pTHX_ PERL_CONTEXT* cx, I32 ix, I32 max, CLONE_PARAMS* param)
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_4);
+
+PERL_CALLCONV PERL_SI* Perl_si_dup(pTHX_ PERL_SI* si, CLONE_PARAMS* param)
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV ANY*     Perl_ss_dup(pTHX_ PerlInterpreter* proto_perl, CLONE_PARAMS* param)
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV void*    Perl_any_dup(pTHX_ void* v, const PerlInterpreter* proto_perl)
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV HE*      Perl_he_dup(pTHX_ const HE* e, bool shared, CLONE_PARAMS* param)
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_3);
+
+PERL_CALLCONV HEK*     Perl_hek_dup(pTHX_ HEK* e, CLONE_PARAMS* param)
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV REGEXP*  Perl_re_dup(pTHX_ const REGEXP* r, CLONE_PARAMS* param)
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_2);
+
+PERL_CALLCONV PerlIO*  Perl_fp_dup(pTHX_ PerlIO* fp, char type, CLONE_PARAMS* param)
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_3);
+
+PERL_CALLCONV DIR*     Perl_dirp_dup(pTHX_ DIR* dp)
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__;
 
-PERL_CALLCONV void     Perl_sv_vcatpvf_mg(pTHX_ SV* sv, const char* pat, va_list* args);
-PERL_CALLCONV void     Perl_sv_catpv_mg(pTHX_ SV *sv, const char *ptr);
-PERL_CALLCONV void     Perl_sv_catpvn_mg(pTHX_ SV *sv, const char *ptr, STRLEN len);
-PERL_CALLCONV void     Perl_sv_catsv_mg(pTHX_ SV *dstr, SV *sstr);
-PERL_CALLCONV void     Perl_sv_setpvf_mg(pTHX_ SV *sv, const char* pat, ...)
-                       __attribute__format__(__printf__,pTHX_2,pTHX_3);
+PERL_CALLCONV GP*      Perl_gp_dup(pTHX_ GP* gp, CLONE_PARAMS* param)
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_2);
 
-PERL_CALLCONV void     Perl_sv_vsetpvf_mg(pTHX_ SV* sv, const char* pat, va_list* args);
-PERL_CALLCONV void     Perl_sv_setiv_mg(pTHX_ SV *sv, IV i);
-PERL_CALLCONV void     Perl_sv_setpviv_mg(pTHX_ SV *sv, IV iv)
-                       __attribute__nonnull__(pTHX_1);
+PERL_CALLCONV MAGIC*   Perl_mg_dup(pTHX_ MAGIC* mg, CLONE_PARAMS* param)
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_2);
 
-PERL_CALLCONV void     Perl_sv_setuv_mg(pTHX_ SV *sv, UV u);
-PERL_CALLCONV void     Perl_sv_setnv_mg(pTHX_ SV *sv, NV num);
-PERL_CALLCONV void     Perl_sv_setpv_mg(pTHX_ SV *sv, const char *ptr);
-PERL_CALLCONV void     Perl_sv_setpvn_mg(pTHX_ SV *sv, const char *ptr, STRLEN len);
-PERL_CALLCONV void     Perl_sv_setsv_mg(pTHX_ SV *dstr, SV *sstr);
-PERL_CALLCONV void     Perl_sv_usepvn_mg(pTHX_ SV *sv, char *ptr, STRLEN len);
-PERL_CALLCONV MGVTBL*  Perl_get_vtbl(pTHX_ int vtbl_id);
-PERL_CALLCONV char*    Perl_pv_display(pTHX_ SV *dsv, const char *pv, STRLEN cur, STRLEN len, STRLEN pvlim);
-PERL_CALLCONV void     Perl_dump_indent(pTHX_ I32 level, PerlIO *file, const char* pat, ...)
-                       __attribute__format__(__printf__,pTHX_3,pTHX_4);
-
-PERL_CALLCONV void     Perl_dump_vindent(pTHX_ I32 level, PerlIO *file, const char* pat, va_list *args);
-PERL_CALLCONV void     Perl_do_gv_dump(pTHX_ I32 level, PerlIO *file, const char *name, GV *sv);
-PERL_CALLCONV void     Perl_do_gvgv_dump(pTHX_ I32 level, PerlIO *file, const char *name, GV *sv);
-PERL_CALLCONV void     Perl_do_hv_dump(pTHX_ I32 level, PerlIO *file, const char *name, HV *sv);
-PERL_CALLCONV void     Perl_do_magic_dump(pTHX_ I32 level, PerlIO *file, const MAGIC *mg, I32 nest, I32 maxnest, bool dumpops, STRLEN pvlim);
-PERL_CALLCONV void     Perl_do_op_dump(pTHX_ I32 level, PerlIO *file, const OP *o);
-PERL_CALLCONV void     Perl_do_pmop_dump(pTHX_ I32 level, PerlIO *file, const PMOP *pm);
-PERL_CALLCONV void     Perl_do_sv_dump(pTHX_ I32 level, PerlIO *file, SV *sv, I32 nest, I32 maxnest, bool dumpops, STRLEN pvlim);
-PERL_CALLCONV void     Perl_magic_dump(pTHX_ const MAGIC *mg);
-PERL_CALLCONV void     Perl_reginitcolors(pTHX);
-PERL_CALLCONV char*    Perl_sv_2pv_nolen(pTHX_ SV* sv);
-PERL_CALLCONV char*    Perl_sv_2pvutf8_nolen(pTHX_ SV* sv);
-PERL_CALLCONV char*    Perl_sv_2pvbyte_nolen(pTHX_ SV* sv);
-/* PERL_CALLCONV char* sv_pv(pTHX_ SV *sv); */
-/* PERL_CALLCONV char* sv_pvutf8(pTHX_ SV *sv); */
-/* PERL_CALLCONV char* sv_pvbyte(pTHX_ SV *sv); */
-/* PERL_CALLCONV STRLEN        sv_utf8_upgrade(pTHX_ SV *sv); */
-PERL_CALLCONV bool     Perl_sv_utf8_downgrade(pTHX_ SV *sv, bool fail_ok);
-PERL_CALLCONV void     Perl_sv_utf8_encode(pTHX_ SV *sv);
-PERL_CALLCONV bool     Perl_sv_utf8_decode(pTHX_ SV *sv);
-PERL_CALLCONV void     Perl_sv_force_normal(pTHX_ SV *sv);
-PERL_CALLCONV void     Perl_sv_force_normal_flags(pTHX_ SV *sv, U32 flags);
-PERL_CALLCONV void     Perl_tmps_grow(pTHX_ I32 n);
-PERL_CALLCONV SV*      Perl_sv_rvweaken(pTHX_ SV *sv);
-PERL_CALLCONV int      Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg);
-PERL_CALLCONV OP*      Perl_newANONATTRSUB(pTHX_ I32 floor, OP *proto, OP *attrs, OP *block);
-PERL_CALLCONV CV*      Perl_newATTRSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block);
-PERL_CALLCONV void     Perl_newMYSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block)
-                       __attribute__noreturn__;
+PERL_CALLCONV SV*      Perl_sv_dup(pTHX_ SV* sstr, CLONE_PARAMS* param)
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_2);
 
-PERL_CALLCONV OP *     Perl_my_attrs(pTHX_ OP *o, OP *attrs)
-                       __attribute__nonnull__(pTHX_1);
+PERL_CALLCONV void     Perl_rvpv_dup(pTHX_ SV* dstr, SV *sstr, CLONE_PARAMS* param)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
 
-PERL_CALLCONV void     Perl_boot_core_xsutils(pTHX);
-#if defined(USE_ITHREADS)
-PERL_CALLCONV PERL_CONTEXT*    Perl_cx_dup(pTHX_ PERL_CONTEXT* cx, I32 ix, I32 max, CLONE_PARAMS* param);
-PERL_CALLCONV PERL_SI* Perl_si_dup(pTHX_ PERL_SI* si, CLONE_PARAMS* param);
-PERL_CALLCONV ANY*     Perl_ss_dup(pTHX_ PerlInterpreter* proto_perl, CLONE_PARAMS* param);
-PERL_CALLCONV void*    Perl_any_dup(pTHX_ void* v, PerlInterpreter* proto_perl);
-PERL_CALLCONV HE*      Perl_he_dup(pTHX_ HE* e, bool shared, CLONE_PARAMS* param);
-PERL_CALLCONV HEK*     Perl_hek_dup(pTHX_ HEK* e, CLONE_PARAMS* param);
-PERL_CALLCONV REGEXP*  Perl_re_dup(pTHX_ REGEXP* r, CLONE_PARAMS* param);
-PERL_CALLCONV PerlIO*  Perl_fp_dup(pTHX_ PerlIO* fp, char type, CLONE_PARAMS* param);
-PERL_CALLCONV DIR*     Perl_dirp_dup(pTHX_ DIR* dp);
-PERL_CALLCONV GP*      Perl_gp_dup(pTHX_ GP* gp, CLONE_PARAMS* param);
-PERL_CALLCONV MAGIC*   Perl_mg_dup(pTHX_ MAGIC* mg, CLONE_PARAMS* param);
-PERL_CALLCONV SV*      Perl_sv_dup(pTHX_ SV* sstr, CLONE_PARAMS* param);
-PERL_CALLCONV void     Perl_rvpv_dup(pTHX_ SV* dstr, SV *sstr, CLONE_PARAMS* param);
-PERL_CALLCONV PTR_TBL_t*       Perl_ptr_table_new(pTHX);
-PERL_CALLCONV void*    Perl_ptr_table_fetch(pTHX_ PTR_TBL_t *tbl, void *sv)
+PERL_CALLCONV PTR_TBL_t*       Perl_ptr_table_new(pTHX)
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__;
+
+PERL_CALLCONV void*    Perl_ptr_table_fetch(pTHX_ PTR_TBL_t *tbl, const void *sv)
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
 
-PERL_CALLCONV void     Perl_ptr_table_store(pTHX_ PTR_TBL_t *tbl, void *oldsv, void *newsv)
-                       __attribute__nonnull__(pTHX_1);
+PERL_CALLCONV void     Perl_ptr_table_store(pTHX_ PTR_TBL_t *tbl, const void *oldsv, void *newsv)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_3);
 
 PERL_CALLCONV void     Perl_ptr_table_split(pTHX_ PTR_TBL_t *tbl)
                        __attribute__nonnull__(pTHX_1);
@@ -1803,61 +2775,76 @@ PERL_CALLCONV void      Perl_sys_intern_init(pTHX);
 #endif
 
 PERL_CALLCONV char *   Perl_custom_op_name(pTHX_ const OP* op)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV char *   Perl_custom_op_desc(pTHX_ const OP* op)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 
-#if defined(PERL_COPY_ON_WRITE)
-PERL_CALLCONV int      Perl_sv_release_IVX(pTHX_ SV *sv);
+#if defined(PERL_OLD_COPY_ON_WRITE)
+PERL_CALLCONV int      Perl_sv_release_IVX(pTHX_ SV *sv)
+                       __attribute__nonnull__(pTHX_1);
+
 #endif
 
 PERL_CALLCONV void     Perl_sv_nosharing(pTHX_ SV *);
-PERL_CALLCONV void     Perl_sv_nolocking(pTHX_ SV *);
-PERL_CALLCONV void     Perl_sv_nounlocking(pTHX_ SV *);
+/* PERL_CALLCONV void  Perl_sv_nolocking(pTHX_ SV *); */
+/* PERL_CALLCONV void  Perl_sv_nounlocking(pTHX_ SV *); */
 PERL_CALLCONV int      Perl_nothreadhook(pTHX);
 
 END_EXTERN_C
 
 #if defined(PERL_IN_DOOP_C) || defined(PERL_DECL_PROT)
 STATIC I32     S_do_trans_simple(pTHX_ SV *sv)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 STATIC I32     S_do_trans_count(pTHX_ SV *sv)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 STATIC I32     S_do_trans_complex(pTHX_ SV *sv)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 STATIC I32     S_do_trans_simple_utf8(pTHX_ SV *sv)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 STATIC I32     S_do_trans_count_utf8(pTHX_ SV *sv)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 STATIC I32     S_do_trans_complex_utf8(pTHX_ SV *sv)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 #endif
 
 #if defined(PERL_IN_GV_C) || defined(PERL_DECL_PROT)
-STATIC void    S_gv_init_sv(pTHX_ GV *gv, I32 sv_type);
+STATIC void    S_gv_init_sv(pTHX_ GV *gv, I32 sv_type)
+                       __attribute__nonnull__(pTHX_1);
+
 STATIC void    S_require_errno(pTHX_ GV *gv)
                        __attribute__nonnull__(pTHX_1);
 
 #endif
 
 #if defined(PERL_IN_HV_C) || defined(PERL_DECL_PROT)
-STATIC void    S_hsplit(pTHX_ HV *hv);
-STATIC void    S_hfreeentries(pTHX_ HV *hv);
-STATIC HE*     S_new_he(pTHX)
-                       __attribute__warn_unused_result__;
+STATIC void    S_hsplit(pTHX_ HV *hv)
+                       __attribute__nonnull__(pTHX_1);
 
-STATIC void    S_del_he(pTHX_ HE *p)
+STATIC void    S_hfreeentries(pTHX_ HV *hv)
                        __attribute__nonnull__(pTHX_1);
 
+STATIC HE*     S_new_he(pTHX)
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__;
+
 STATIC HEK*    S_save_hek_flags(pTHX_ const char *str, I32 len, U32 hash, int flags)
+                       __attribute__malloc__
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
@@ -1866,16 +2853,21 @@ STATIC void     S_hv_magic_check(pTHX_ HV *hv, bool *needs_copy, bool *needs_store)
                        __attribute__nonnull__(pTHX_2)
                        __attribute__nonnull__(pTHX_3);
 
-STATIC void    S_unshare_hek_or_pvn(pTHX_ HEK* hek, const char* str, I32 len, U32 hash);
-STATIC HE*     S_share_hek_flags(pTHX_ const char* sv, I32 len, U32 hash, int flags)
-                       __attribute__warn_unused_result__;
+STATIC void    S_unshare_hek_or_pvn(pTHX_ const HEK* hek, const char* str, I32 len, U32 hash);
+STATIC HEK*    S_share_hek_flags(pTHX_ const char* sv, I32 len, U32 hash, int flags)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
 
 STATIC void    S_hv_notallowed(pTHX_ int flags, const char *key, I32 klen, const char *msg)
                        __attribute__noreturn__
                        __attribute__nonnull__(pTHX_2)
                        __attribute__nonnull__(pTHX_4);
 
-STATIC struct xpvhv_aux*       S_hv_auxinit(pTHX_ HV *hv);
+STATIC struct xpvhv_aux*       S_hv_auxinit(pTHX_ HV *hv)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC SV*     S_hv_delete_common(pTHX_ HV* tb, SV* keysv, const char* key, STRLEN klen, int k_flags, I32 d_flags, U32 hash);
+STATIC HE*     S_hv_fetch_common(pTHX_ HV* tb, SV* keysv, const char* key, STRLEN klen, int flags, int action, SV* val, U32 hash);
 #endif
 
 #if defined(PERL_IN_MG_C) || defined(PERL_DECL_PROT)
@@ -1892,6 +2884,13 @@ STATIC int       S_magic_methcall(pTHX_ SV *sv, const MAGIC *mg, const char *meth, I32
                        __attribute__nonnull__(pTHX_2)
                        __attribute__nonnull__(pTHX_3);
 
+STATIC void    S_restore_magic(pTHX_ const void *p)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC void    S_unwind_handler_stack(pTHX_ const void *p)
+                       __attribute__nonnull__(pTHX_1);
+
+
 #endif
 
 #if defined(PERL_IN_OP_C) || defined(PERL_DECL_PROT)
@@ -2084,12 +3083,27 @@ STATIC OP*      S_new_logop(pTHX_ I32 type, I32 flags, OP **firstp, OP **otherp)
 STATIC void    S_simplify_sort(pTHX_ OP *o)
                        __attribute__nonnull__(pTHX_1);
 
-STATIC char*   S_gv_ename(pTHX_ GV *gv);
-STATIC bool    S_scalar_mod_type(pTHX_ const OP *o, I32 type);
-STATIC OP *    S_my_kid(pTHX_ OP *o, OP *attrs, OP **imopsp);
-STATIC OP *    S_dup_attrlist(pTHX_ OP *o);
-STATIC void    S_apply_attrs(pTHX_ HV *stash, SV *target, OP *attrs, bool for_my);
-STATIC void    S_apply_attrs_my(pTHX_ HV *stash, OP *target, OP *attrs, OP **imopsp);
+STATIC const char*     S_gv_ename(pTHX_ GV *gv)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC bool    S_scalar_mod_type(pTHX_ const OP *o, I32 type)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC OP *    S_my_kid(pTHX_ OP *o, OP *attrs, OP **imopsp)
+                       __attribute__nonnull__(pTHX_3);
+
+STATIC OP *    S_dup_attrlist(pTHX_ OP *o)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC void    S_apply_attrs(pTHX_ HV *stash, SV *target, OP *attrs, bool for_my)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+STATIC void    S_apply_attrs_my(pTHX_ HV *stash, OP *target, OP *attrs, OP **imopsp)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_4);
+
 STATIC void    S_bad_type(pTHX_ I32 n, const char *t, const char *name, const OP *kid)
                        __attribute__nonnull__(pTHX_2)
                        __attribute__nonnull__(pTHX_3)
@@ -2115,29 +3129,44 @@ STATIC OP*      S_too_many_arguments(pTHX_ OP *o, const char* name)
 #endif
 #if defined(PL_OP_SLAB_ALLOC)
 PERL_CALLCONV void*    Perl_Slab_Alloc(pTHX_ int m, size_t sz)
+                       __attribute__malloc__
                        __attribute__warn_unused_result__;
 
-PERL_CALLCONV void     Perl_Slab_Free(pTHX_ void *op);
+PERL_CALLCONV void     Perl_Slab_Free(pTHX_ void *op)
+                       __attribute__nonnull__(pTHX_1);
+
 #endif
 
 #if defined(PERL_IN_PERL_C) || defined(PERL_DECL_PROT)
 STATIC void    S_find_beginning(pTHX);
-STATIC void    S_forbid_setid(pTHX_ const char * s);
+STATIC void    S_forbid_setid(pTHX_ const char * s)
+                       __attribute__nonnull__(pTHX_1);
+
 STATIC void    S_incpush(pTHX_ const char *dir, bool addsubdirs, bool addoldvers, bool usesep, bool canrelocate);
 STATIC void    S_init_interp(pTHX);
 STATIC void    S_init_ids(pTHX);
 STATIC void    S_init_lexer(pTHX);
 STATIC void    S_init_main_stash(pTHX);
 STATIC void    S_init_perllib(pTHX);
-STATIC void    S_init_postdump_symbols(pTHX_ int, char **, char **);
+STATIC void    S_init_postdump_symbols(pTHX_ int argc, char **argv, char **env)
+                       __attribute__nonnull__(pTHX_2);
+
 STATIC void    S_init_predump_symbols(pTHX);
 STATIC void    S_my_exit_jump(pTHX)
                        __attribute__noreturn__;
 
 STATIC void    S_nuke_stacks(pTHX);
-STATIC void    S_open_script(pTHX_ const char *scriptname, bool dosearch, SV *sv);
-STATIC void    S_usage(pTHX_ const char *name);
-STATIC void    S_validate_suid(pTHX_ const char *validarg, const char *scriptname);
+STATIC void    S_open_script(pTHX_ const char *scriptname, bool dosearch, SV *sv)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_3);
+
+STATIC void    S_usage(pTHX_ const char *name)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC void    S_validate_suid(pTHX_ const char *validarg, const char *scriptname)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
 #  if defined(IAMSUID)
 STATIC int     S_fd_on_nosuid_fs(pTHX_ int fd);
 #  endif
@@ -2145,130 +3174,281 @@ STATIC void*  S_parse_body(pTHX_ char **env, XSINIT_t xsinit);
 STATIC void    S_run_body(pTHX_ I32 oldscope)
                        __attribute__noreturn__;
 
-STATIC void    S_call_body(pTHX_ const OP *myop, bool is_eval);
-STATIC void*   S_call_list_body(pTHX_ CV *cv);
+STATIC void    S_call_body(pTHX_ const OP *myop, bool is_eval)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC void*   S_call_list_body(pTHX_ CV *cv)
+                       __attribute__nonnull__(pTHX_1);
+
 #endif
 
 #if defined(PERL_IN_PP_C) || defined(PERL_DECL_PROT)
-STATIC SV*     S_refto(pTHX_ SV* sv);
+STATIC SV*     S_refto(pTHX_ SV* sv)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
 #endif
 
 #if defined(PERL_IN_PP_PACK_C) || defined(PERL_DECL_PROT)
-STATIC I32     S_unpack_rec(pTHX_ struct tempsym* symptr, const char *s, const char *strbeg, const char *strend, const char **new_s);
-STATIC SV **   S_pack_rec(pTHX_ SV *cat, struct tempsym* symptr, SV **beglist, SV **endlist);
+STATIC I32     S_unpack_rec(pTHX_ struct tempsym* symptr, const char *s, const char *strbeg, const char *strend, const char **new_s)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_4);
+
+STATIC SV **   S_pack_rec(pTHX_ SV *cat, struct tempsym* symptr, SV **beglist, SV **endlist)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_4);
+
 STATIC SV*     S_mul128(pTHX_ SV *sv, U8 m)
                        __attribute__nonnull__(pTHX_1);
 
-STATIC I32     S_measure_struct(pTHX_ struct tempsym* symptr)
+STATIC I32     S_measure_struct(pTHX_ struct tempsym* symptr)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC bool    S_next_symbol(pTHX_ struct tempsym* symptr)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC SV*     S_is_an_int(pTHX_ const char *s, STRLEN l)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC int     S_div128(pTHX_ SV *pnum, bool *done)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+STATIC const char *    S_group_end(pTHX_ const char *pat, const char *patend, char ender)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+STATIC const char *    S_get_num(pTHX_ const char *ppat, I32 *lenptr)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+STATIC bool    S_need_utf8(const char *pat, const char *patend)
+                       __attribute__nonnull__(1)
+                       __attribute__nonnull__(2);
+
+STATIC char    S_first_symbol(const char *pat, const char *patend)
+                       __attribute__nonnull__(1)
+                       __attribute__nonnull__(2);
+
+#endif
+
+#if defined(PERL_IN_PP_CTL_C) || defined(PERL_DECL_PROT)
+STATIC OP*     S_docatch(pTHX_ OP *o)
+                       __attribute__warn_unused_result__;
+
+STATIC void    S_docatch_body(pTHX);
+STATIC OP*     S_dofindlabel(pTHX_ OP *o, const char *label, OP **opstack, OP **oplimit)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_4);
+
+STATIC OP*     S_doparseform(pTHX_ SV *sv)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC bool    S_num_overflow(NV value, I32 fldsize, I32 frcsize)
+                       __attribute__warn_unused_result__;
+
+STATIC I32     S_dopoptoeval(pTHX_ I32 startingblock)
+                       __attribute__warn_unused_result__;
+
+STATIC I32     S_dopoptolabel(pTHX_ const char *label)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC I32     S_dopoptoloop(pTHX_ I32 startingblock)
+                       __attribute__warn_unused_result__;
+
+STATIC I32     S_dopoptosub(pTHX_ I32 startingblock)
+                       __attribute__warn_unused_result__;
+
+STATIC I32     S_dopoptosub_at(pTHX_ const PERL_CONTEXT* cxstk, I32 startingblock)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC void    S_save_lines(pTHX_ AV *array, SV *sv)
+                       __attribute__nonnull__(pTHX_2);
+
+STATIC OP*     S_doeval(pTHX_ int gimme, OP** startop, CV* outside, U32 seq)
+                       __attribute__warn_unused_result__;
+
+STATIC PerlIO *        S_doopen_pm(pTHX_ const char *name, const char *mode)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+STATIC bool    S_path_is_absolute(pTHX_ const char *name)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+#endif
+
+#if defined(PERL_IN_PP_HOT_C) || defined(PERL_DECL_PROT)
+STATIC void    S_do_oddball(pTHX_ HV *hash, SV **relem, SV **firstrelem)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+
+STATIC CV*     S_get_db_sub(pTHX_ SV **svp, CV *cv)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+STATIC SV*     S_method_common(pTHX_ SV* meth, U32* hashp)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+#endif
+
+#if defined(PERL_IN_PP_SYS_C) || defined(PERL_DECL_PROT)
+STATIC OP*     S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+
+STATIC int     S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
+                       __attribute__nonnull__(pTHX_1);
+
+#  if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
+STATIC int     S_dooneliner(pTHX_ const char *cmd, const char *filename)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+#  endif
+#endif
+
+#if defined(PERL_IN_REGCOMP_C) || defined(PERL_DECL_PROT)
+STATIC regnode*        S_reg(pTHX_ struct RExC_state_t *state, I32 paren, I32 *flagp)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_3);
+
+STATIC regnode*        S_reganode(pTHX_ struct RExC_state_t *state, U8 op, U32 arg)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC regnode*        S_regatom(pTHX_ struct RExC_state_t *state, I32 *flagp)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+STATIC regnode*        S_regbranch(pTHX_ struct RExC_state_t *state, I32 *flagp, I32 first)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+STATIC void    S_reguni(pTHX_ const struct RExC_state_t *state, UV uv, char *s, STRLEN *lenp)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_4);
+
+STATIC regnode*        S_regclass(pTHX_ struct RExC_state_t *state)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC I32     S_regcurly(pTHX_ const char *)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC regnode*        S_reg_node(pTHX_ struct RExC_state_t *state, U8 op)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC regnode*        S_regpiece(pTHX_ struct RExC_state_t *state, I32 *flagp)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+STATIC void    S_reginsert(pTHX_ struct RExC_state_t *state, U8 op, regnode *opnd)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_3);
+
+STATIC void    S_regoptail(pTHX_ struct RExC_state_t *state, regnode *p, regnode *val)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+
+STATIC void    S_regtail(pTHX_ struct RExC_state_t *state, regnode *p, regnode *val)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+
+STATIC char*   S_regwhite(pTHX_ char *p, const char *e)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+STATIC char*   S_nextchar(pTHX_ struct RExC_state_t*)
                        __attribute__nonnull__(pTHX_1);
 
-STATIC bool    S_next_symbol(pTHX_ struct tempsym* symptr)
-                       __attribute__nonnull__(pTHX_1);
+#  ifdef DEBUGGING
+STATIC regnode*        S_dumpuntil(pTHX_ regnode *start, regnode *node, regnode *last, SV* sv, I32 l)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_4);
 
-STATIC SV*     S_is_an_int(pTHX_ const char *s, STRLEN l)
-                       __attribute__warn_unused_result__
+STATIC void    S_put_byte(pTHX_ SV* sv, int c)
                        __attribute__nonnull__(pTHX_1);
 
-STATIC int     S_div128(pTHX_ SV *pnum, bool *done)
+#  endif
+STATIC void    S_scan_commit(pTHX_ struct RExC_state_t*, struct scan_data_t *data)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
 
-STATIC const char *    S_group_end(pTHX_ const char *pat, const char *patend, char ender)
+STATIC void    S_cl_anything(pTHX_ struct RExC_state_t*, struct regnode_charclass_class *cl)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
 
-STATIC const char *    S_get_num(pTHX_ const char *ppat, I32 *lenptr)
+STATIC int     S_cl_is_anything(pTHX_ const struct regnode_charclass_class *cl)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC void    S_cl_init(pTHX_ struct RExC_state_t*, struct regnode_charclass_class *cl)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
 
-#endif
-
-#if defined(PERL_IN_PP_CTL_C) || defined(PERL_DECL_PROT)
-STATIC OP*     S_docatch(pTHX_ OP *o);
-STATIC void*   S_docatch_body(pTHX);
-STATIC OP*     S_dofindlabel(pTHX_ OP *o, const char *label, OP **opstack, OP **oplimit);
-STATIC OP*     S_doparseform(pTHX_ SV *sv);
-STATIC bool    S_num_overflow(NV value, I32 fldsize, I32 frcsize);
-STATIC I32     S_dopoptoeval(pTHX_ I32 startingblock);
-STATIC I32     S_dopoptolabel(pTHX_ const char *label)
-                       __attribute__nonnull__(pTHX_1);
-
-STATIC I32     S_dopoptoloop(pTHX_ I32 startingblock);
-STATIC I32     S_dopoptosub(pTHX_ I32 startingblock);
-STATIC I32     S_dopoptosub_at(pTHX_ PERL_CONTEXT* cxstk, I32 startingblock);
-STATIC void    S_save_lines(pTHX_ AV *array, SV *sv);
-STATIC OP*     S_doeval(pTHX_ int gimme, OP** startop, CV* outside, U32 seq);
-STATIC PerlIO *        S_doopen_pm(pTHX_ const char *name, const char *mode);
-STATIC bool    S_path_is_absolute(pTHX_ const char *name)
-                       __attribute__nonnull__(pTHX_1);
+STATIC void    S_cl_init_zero(pTHX_ struct RExC_state_t*, struct regnode_charclass_class *cl)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
 
-#endif
+STATIC void    S_cl_and(pTHX_ struct regnode_charclass_class *cl, const struct regnode_charclass_class *and_with)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
 
-#if defined(PERL_IN_PP_HOT_C) || defined(PERL_DECL_PROT)
-STATIC void    S_do_oddball(pTHX_ HV *hash, SV **relem, SV **firstrelem);
-STATIC CV*     S_get_db_sub(pTHX_ SV **svp, CV *cv);
-STATIC SV*     S_method_common(pTHX_ SV* meth, U32* hashp);
-#endif
+STATIC void    S_cl_or(pTHX_ struct RExC_state_t*, struct regnode_charclass_class *cl, const struct regnode_charclass_class *or_with)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
 
-#if defined(PERL_IN_PP_SYS_C) || defined(PERL_DECL_PROT)
-STATIC OP*     S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
+STATIC I32     S_study_chunk(pTHX_ struct RExC_state_t* pRExC_state, regnode **scanp, I32 *deltap, regnode *last, struct scan_data_t *data, U32 flags, U32 depth)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_4);
+
+STATIC I32     S_add_data(pTHX_ struct RExC_state_t*, I32 n, const char *s)
+                       __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_3);
 
-STATIC int     S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
+STATIC void    S_re_croak2(pTHX_ const char* pat1, const char* pat2, ...)
                        __attribute__noreturn__
-                       __attribute__nonnull__(pTHX_1);
-
-#  if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
-STATIC int     S_dooneliner(pTHX_ const char *cmd, const char *filename)
-                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
 
-#  endif
-#endif
-
-#if defined(PERL_IN_REGCOMP_C) || defined(PERL_DECL_PROT)
-STATIC regnode*        S_reg(pTHX_ struct RExC_state_t*, I32, I32 *);
-STATIC regnode*        S_reganode(pTHX_ struct RExC_state_t*, U8, U32);
-STATIC regnode*        S_regatom(pTHX_ struct RExC_state_t*, I32 *);
-STATIC regnode*        S_regbranch(pTHX_ struct RExC_state_t*, I32 *, I32);
-STATIC void    S_reguni(pTHX_ struct RExC_state_t*, UV, char *, STRLEN*);
-STATIC regnode*        S_regclass(pTHX_ struct RExC_state_t*);
-STATIC I32     S_regcurly(pTHX_ const char *)
-                       __attribute__warn_unused_result__
+STATIC I32     S_regpposixcc(pTHX_ struct RExC_state_t*, I32 value)
                        __attribute__nonnull__(pTHX_1);
 
-STATIC regnode*        S_reg_node(pTHX_ struct RExC_state_t*, U8);
-STATIC regnode*        S_regpiece(pTHX_ struct RExC_state_t*, I32 *);
-STATIC void    S_reginsert(pTHX_ struct RExC_state_t*, U8, regnode *);
-STATIC void    S_regoptail(pTHX_ struct RExC_state_t*, regnode *, regnode *);
-STATIC void    S_regtail(pTHX_ struct RExC_state_t*, regnode *, regnode *);
-STATIC char*   S_regwhite(pTHX_ char *p, const char *e);
-STATIC char*   S_nextchar(pTHX_ struct RExC_state_t*);
-#  ifdef DEBUGGING
-STATIC regnode*        S_dumpuntil(pTHX_ regnode *start, regnode *node, regnode *last, SV* sv, I32 l);
-STATIC void    S_put_byte(pTHX_ SV* sv, int c)
+STATIC void    S_checkposixcc(pTHX_ struct RExC_state_t*)
                        __attribute__nonnull__(pTHX_1);
 
-#  endif
-STATIC void    S_scan_commit(pTHX_ struct RExC_state_t*, struct scan_data_t *data);
-STATIC void    S_cl_anything(pTHX_ struct RExC_state_t*, struct regnode_charclass_class *cl);
-STATIC int     S_cl_is_anything(pTHX_ struct regnode_charclass_class *cl);
-STATIC void    S_cl_init(pTHX_ struct RExC_state_t*, struct regnode_charclass_class *cl);
-STATIC void    S_cl_init_zero(pTHX_ struct RExC_state_t*, struct regnode_charclass_class *cl);
-STATIC void    S_cl_and(pTHX_ struct regnode_charclass_class *cl, struct regnode_charclass_class *and_with);
-STATIC void    S_cl_or(pTHX_ struct RExC_state_t*, struct regnode_charclass_class *cl, struct regnode_charclass_class *or_with);
-STATIC I32     S_study_chunk(pTHX_ struct RExC_state_t*, regnode **scanp, I32 *deltap, regnode *last, struct scan_data_t *data, U32 flags, U32 depth);
-STATIC I32     S_add_data(pTHX_ struct RExC_state_t*, I32 n, const char *s);
-STATIC void    S_re_croak2(pTHX_ const char* pat1, const char* pat2, ...)
-                       __attribute__noreturn__;
 
-STATIC I32     S_regpposixcc(pTHX_ struct RExC_state_t*, I32 value);
-STATIC void    S_checkposixcc(pTHX_ struct RExC_state_t*);
+STATIC I32     S_make_trie(pTHX_ struct RExC_state_t*, regnode *startbranch, regnode *first, regnode *last, regnode *tail, U32 flags)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_4)
+                       __attribute__nonnull__(pTHX_5);
 
-STATIC I32     S_make_trie(pTHX_ struct RExC_state_t*, regnode *startbranch, regnode *first, regnode *last, regnode *tail, U32 flags);
 #endif
 
 #if defined(PERL_IN_REGEXEC_C) || defined(PERL_DECL_PROT)
@@ -2286,7 +3466,9 @@ STATIC I32        S_regrepeat_hard(pTHX_ regnode *p, I32 max, I32 *lp)
                        __attribute__nonnull__(pTHX_3);
 
 STATIC I32     S_regtry(pTHX_ regexp *prog, char *startpos)
-                       __attribute__warn_unused_result__;
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
 
 STATIC bool    S_reginclass(pTHX_ const regnode *n, const U8 *p, STRLEN *lenp, bool do_utf8sv_is_utf8)
                        __attribute__warn_unused_result__
@@ -2296,15 +3478,21 @@ STATIC bool     S_reginclass(pTHX_ const regnode *n, const U8 *p, STRLEN *lenp, bool
 STATIC CHECKPOINT      S_regcppush(pTHX_ I32 parenfloor);
 STATIC char*   S_regcppop(pTHX);
 STATIC char*   S_regcp_set_to(pTHX_ I32 ss);
-STATIC void    S_cache_re(pTHX_ regexp *prog);
+STATIC void    S_cache_re(pTHX_ regexp *prog)
+                       __attribute__nonnull__(pTHX_1);
+
 STATIC U8*     S_reghop(pTHX_ U8 *pos, I32 off)
-                       __attribute__warn_unused_result__;
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
 
 STATIC U8*     S_reghop3(pTHX_ U8 *pos, I32 off, U8 *lim)
-                       __attribute__warn_unused_result__;
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_3);
 
 STATIC U8*     S_reghopmaybe(pTHX_ U8 *pos, I32 off)
-                       __attribute__warn_unused_result__;
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
 
 STATIC U8*     S_reghopmaybe3(pTHX_ U8 *pos, I32 off, U8 *lim)
                        __attribute__warn_unused_result__
@@ -2328,61 +3516,70 @@ STATIC void     S_to_byte_substr(pTHX_ regexp * prog)
 
 #if defined(PERL_IN_DUMP_C) || defined(PERL_DECL_PROT)
 STATIC CV*     S_deb_curcv(pTHX_ I32 ix);
-STATIC void    S_debprof(pTHX_ const OP *o);
+STATIC void    S_debprof(pTHX_ const OP *o)
+                       __attribute__nonnull__(pTHX_1);
+
 #endif
 
 #if defined(PERL_IN_SCOPE_C) || defined(PERL_DECL_PROT)
-STATIC SV*     S_save_scalar_at(pTHX_ SV **sptr);
+STATIC SV*     S_save_scalar_at(pTHX_ SV **sptr)
+                       __attribute__nonnull__(pTHX_1);
+
+#endif
+
+#if defined(PERL_IN_GV_C) || defined(PERL_IN_SV_C) || defined(PERL_IN_PAD_C) || defined(PERL_DECL_PROT)
+PERL_CALLCONV void     Perl_sv_add_backref(pTHX_ SV *tsv, SV *sv)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
 #endif
 
 #if defined(PERL_IN_SV_C) || defined(PERL_DECL_PROT)
-STATIC IV      S_asIV(pTHX_ SV* sv);
-STATIC UV      S_asUV(pTHX_ SV* sv);
-STATIC XPVNV*  S_new_xnv(pTHX);
-STATIC XPV*    S_new_xpv(pTHX);
-STATIC XPVIV*  S_new_xpviv(pTHX);
-STATIC XPVNV*  S_new_xpvnv(pTHX);
-STATIC XPVCV*  S_new_xpvcv(pTHX);
-STATIC XPVAV*  S_new_xpvav(pTHX);
-STATIC XPVHV*  S_new_xpvhv(pTHX);
-STATIC XPVMG*  S_new_xpvmg(pTHX);
-STATIC XPVGV*  S_new_xpvgv(pTHX);
-STATIC XPVLV*  S_new_xpvlv(pTHX);
-STATIC XPVBM*  S_new_xpvbm(pTHX);
-STATIC void    S_del_xnv(pTHX_ XPVNV* p);
-STATIC void    S_del_xpv(pTHX_ XPV* p);
-STATIC void    S_del_xpviv(pTHX_ XPVIV* p);
-STATIC void    S_del_xpvnv(pTHX_ XPVNV* p);
-STATIC void    S_del_xpvcv(pTHX_ XPVCV* p);
-STATIC void    S_del_xpvav(pTHX_ XPVAV* p);
-STATIC void    S_del_xpvhv(pTHX_ XPVHV* p);
-STATIC void    S_del_xpvmg(pTHX_ XPVMG* p);
-STATIC void    S_del_xpvgv(pTHX_ XPVGV* p);
-STATIC void    S_del_xpvlv(pTHX_ XPVLV* p);
-STATIC void    S_del_xpvbm(pTHX_ XPVBM* p);
-STATIC void    S_sv_unglob(pTHX_ SV* sv);
-STATIC void    S_not_a_number(pTHX_ SV *sv);
-STATIC I32     S_visit(pTHX_ SVFUNC_t f, U32 flags, U32 mask);
-STATIC void    S_sv_add_backref(pTHX_ SV *tsv, SV *sv);
-STATIC void    S_sv_del_backref(pTHX_ SV *sv);
-STATIC SV *    S_varname(pTHX_ GV *gv, const char *gvtype, PADOFFSET targ, SV *keyname, I32 aindex, int subscript_type)
+STATIC char *  S_uiv_2buf(char *buf, IV iv, UV uv, int is_uv, char **peob)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(1)
+                       __attribute__nonnull__(5);
+
+STATIC IV      S_asIV(pTHX_ SV* sv)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC UV      S_asUV(pTHX_ SV* sv)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC void    S_sv_unglob(pTHX_ SV* sv)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC void    S_not_a_number(pTHX_ SV *sv)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC I32     S_visit(pTHX_ SVFUNC_t f, U32 flags, U32 mask)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC void    S_sv_del_backref(pTHX_ SV *target, SV *ref)
+                       __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
 
+STATIC SV *    S_varname(pTHX_ GV *gv, const char gvtype, PADOFFSET targ, SV *keyname, I32 aindex, int subscript_type)
+                       __attribute__warn_unused_result__;
+
 #  ifdef DEBUGGING
-STATIC void    S_del_sv(pTHX_ SV *p);
+STATIC void    S_del_sv(pTHX_ SV *p)
+                       __attribute__nonnull__(pTHX_1);
+
 #  endif
 #  if !defined(NV_PRESERVES_UV)
-STATIC int     S_sv_2iuv_non_preserve(pTHX_ SV *sv, I32 numtype);
+STATIC int     S_sv_2iuv_non_preserve(pTHX_ SV *sv, I32 numtype)
+                       __attribute__nonnull__(pTHX_1);
+
 #  endif
 STATIC I32     S_expect_number(pTHX_ char** pattern)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 #
-#  if defined(USE_ITHREADS)
-STATIC SV*     S_gv_share(pTHX_ SV *sv, CLONE_PARAMS *param);
-#  endif
-STATIC bool    S_utf8_mg_pos(pTHX_ SV *sv, MAGIC **mgp, STRLEN **cachep, I32 i, I32 *offsetp, I32 uoff, U8 **sp, U8 *start, U8 *send)
+STATIC bool    S_utf8_mg_pos(pTHX_ SV *sv, MAGIC **mgp, STRLEN **cachep, I32 i, I32 *offsetp, I32 uoff, const U8 **sp, const U8 *start, const U8 *send)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2)
                        __attribute__nonnull__(pTHX_3)
@@ -2391,32 +3588,45 @@ STATIC bool     S_utf8_mg_pos(pTHX_ SV *sv, MAGIC **mgp, STRLEN **cachep, I32 i, I32
                        __attribute__nonnull__(pTHX_8)
                        __attribute__nonnull__(pTHX_9);
 
-STATIC bool    S_utf8_mg_pos_init(pTHX_ SV *sv, MAGIC **mgp, STRLEN **cachep, I32 i, I32 offsetp, U8 *s, U8 *start)
+STATIC bool    S_utf8_mg_pos_init(pTHX_ SV *sv, MAGIC **mgp, STRLEN **cachep, I32 i, I32 offsetp, const U8 *s, const U8 *start)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2)
                        __attribute__nonnull__(pTHX_3)
                        __attribute__nonnull__(pTHX_6)
                        __attribute__nonnull__(pTHX_7);
 
-#if defined(PERL_COPY_ON_WRITE)
-STATIC void    S_sv_release_COW(pTHX_ SV *sv, const char *pvx, STRLEN cur, STRLEN len, U32 hash, SV *after);
+#if defined(PERL_OLD_COPY_ON_WRITE)
+STATIC void    S_sv_release_COW(pTHX_ SV *sv, const char *pvx, STRLEN len, SV *after)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_4);
+
 #endif
 #endif
 
 #if defined(PERL_IN_TOKE_C) || defined(PERL_DECL_PROT)
 STATIC void    S_check_uni(pTHX);
 STATIC void    S_force_next(pTHX_ I32 type);
-STATIC char*   S_force_version(pTHX_ char *start, int guessing);
-STATIC char*   S_force_word(pTHX_ char *start, int token, int check_keyword, int allow_pack, int allow_tick);
-STATIC SV*     S_tokeq(pTHX_ SV *sv);
+STATIC char*   S_force_version(pTHX_ char *start, int guessing)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC char*   S_force_word(pTHX_ char *start, int token, int check_keyword, int allow_pack, int allow_tick)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC SV*     S_tokeq(pTHX_ SV *sv)
+                       __attribute__nonnull__(pTHX_1);
+
 STATIC int     S_pending_ident(pTHX);
 STATIC char*   S_scan_const(pTHX_ char *start)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 STATIC char*   S_scan_formline(pTHX_ char *s)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 STATIC char*   S_scan_heredoc(pTHX_ char *s)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 
 STATIC char*   S_scan_ident(pTHX_ char *s, const char *send, char *dest, STRLEN destlen, I32 ck_uni)
@@ -2424,63 +3634,124 @@ STATIC char*   S_scan_ident(pTHX_ char *s, const char *send, char *dest, STRLEN de
                        __attribute__nonnull__(pTHX_2)
                        __attribute__nonnull__(pTHX_3);
 
-STATIC char*   S_scan_inputsymbol(pTHX_ char *start);
-STATIC char*   S_scan_pat(pTHX_ char *start, I32 type);
-STATIC char*   S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims);
-STATIC char*   S_scan_subst(pTHX_ char *start);
-STATIC char*   S_scan_trans(pTHX_ char *start);
-STATIC char*   S_scan_word(pTHX_ char *s, char *dest, STRLEN destlen, int allow_package, STRLEN *slp);
-STATIC char*   S_skipspace(pTHX_ char *s);
-STATIC char*   S_swallow_bom(pTHX_ U8 *s);
+STATIC char*   S_scan_inputsymbol(pTHX_ char *start)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC char*   S_scan_pat(pTHX_ char *start, I32 type)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC char*   S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC char*   S_scan_subst(pTHX_ char *start)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC char*   S_scan_trans(pTHX_ char *start)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC char*   S_scan_word(pTHX_ char *s, char *dest, STRLEN destlen, int allow_package, STRLEN *slp)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_5);
+
+STATIC char*   S_skipspace(pTHX_ char *s)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC char*   S_swallow_bom(pTHX_ U8 *s)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
 STATIC void    S_checkcomma(pTHX_ char *s, const char *name, const char *what)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2)
                        __attribute__nonnull__(pTHX_3);
 
-STATIC void    S_force_ident(pTHX_ const char *s, int kind);
-STATIC void    S_incline(pTHX_ char *s);
-STATIC int     S_intuit_method(pTHX_ char *s, GV *gv);
-STATIC int     S_intuit_more(pTHX_ char *s);
-STATIC I32     S_lop(pTHX_ I32 f, int x, char *s);
+STATIC void    S_force_ident(pTHX_ const char *s, int kind)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC void    S_incline(pTHX_ char *s)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC int     S_intuit_method(pTHX_ char *s, GV *gv)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC int     S_intuit_more(pTHX_ char *s)
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC I32     S_lop(pTHX_ I32 f, int x, char *s)
+                       __attribute__nonnull__(pTHX_3);
+
 STATIC void    S_missingterm(pTHX_ char *s)
                        __attribute__noreturn__;
 
-STATIC void    S_no_op(pTHX_ const char *what, char *s);
+STATIC void    S_no_op(pTHX_ const char *what, char *s)
+                       __attribute__nonnull__(pTHX_1);
+
 STATIC void    S_set_csh(pTHX);
-STATIC I32     S_sublex_done(pTHX);
-STATIC I32     S_sublex_push(pTHX);
-STATIC I32     S_sublex_start(pTHX);
-STATIC char *  S_filter_gets(pTHX_ SV *sv, PerlIO *fp, STRLEN append);
-STATIC HV *    S_find_in_my_stash(pTHX_ const char *pkgname, I32 len);
-STATIC SV*     S_new_constant(pTHX_ const char *s, STRLEN len, const char *key, SV *sv, SV *pv, const char *type);
+STATIC I32     S_sublex_done(pTHX)
+                       __attribute__warn_unused_result__;
+
+STATIC I32     S_sublex_push(pTHX)
+                       __attribute__warn_unused_result__;
+
+STATIC I32     S_sublex_start(pTHX)
+                       __attribute__warn_unused_result__;
+
+STATIC char *  S_filter_gets(pTHX_ SV *sv, PerlIO *fp, STRLEN append)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+STATIC HV *    S_find_in_my_stash(pTHX_ const char *pkgname, I32 len)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+STATIC char *  S_tokenize_use(pTHX_ int, char*)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_2);
+
+STATIC SV*     S_new_constant(pTHX_ const char *s, STRLEN len, const char *key, SV *sv, SV *pv, const char *type)
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_4);
+
 #  if defined(DEBUGGING)
-STATIC int     S_tokereport(pTHX_ const char *s, I32 rv);
+STATIC int     S_tokereport(pTHX_ I32 rv);
 #  endif
 STATIC int     S_ao(pTHX_ int toketype);
 STATIC void    S_depcom(pTHX);
 STATIC const char*     S_incl_perldb(pTHX);
-#if 0
-STATIC I32     S_utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen);
-STATIC I32     S_utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen);
-#endif
 #  if defined(PERL_CR_FILTER)
 STATIC I32     S_cr_textfilter(pTHX_ int idx, SV *sv, int maxlen);
 #  endif
 #endif
 
 #if defined(PERL_IN_UNIVERSAL_C) || defined(PERL_DECL_PROT)
-STATIC SV*     S_isa_lookup(pTHX_ HV *stash, const char *name, HV *name_stash, int len, int level);
+STATIC SV*     S_isa_lookup(pTHX_ HV *stash, const char *name, HV *name_stash, int len, int level)
+                       __attribute__nonnull__(pTHX_2);
+
 #endif
 
 #if defined(PERL_IN_LOCALE_C) || defined(PERL_DECL_PROT)
 #if defined(USE_LOCALE_NUMERIC) || defined(USE_LOCALE_COLLATE)
-STATIC char*   S_stdize_locale(pTHX_ char* locs);
+STATIC char*   S_stdize_locale(pTHX_ char* locs)
+                       __attribute__nonnull__(pTHX_1);
+
 #endif
 #endif
 
 #if defined(PERL_IN_UTIL_C) || defined(PERL_DECL_PROT)
-STATIC COP*    S_closest_cop(pTHX_ COP *cop, OP *o);
+STATIC COP*    S_closest_cop(pTHX_ COP *cop, const OP *o)
+                       __attribute__nonnull__(pTHX_1);
+
 STATIC SV*     S_mess_alloc(pTHX);
+STATIC const char *    S_vdie_croak_common(pTHX_ const char *pat, va_list *args, STRLEN *msglen, I32* utf8);
+STATIC void    S_vdie_common(pTHX_ const char *message, STRLEN msglen, I32 utf8);
 #endif
 
 #if defined(PERL_IN_NUMERIC_C) || defined(PERL_DECL_PROT)
@@ -2509,7 +3780,7 @@ PERL_CALLCONV STRLEN      Perl_sv_utf8_upgrade_flags(pTHX_ SV *sv, I32 flags)
                        __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV char*    Perl_sv_pvn_force_flags(pTHX_ SV* sv, STRLEN* lp, I32 flags)
-                       __attribute__nonnull__(pTHX_2);
+                       __attribute__nonnull__(pTHX_1);
 
 PERL_CALLCONV void     Perl_sv_copypv(pTHX_ SV* dsv, SV* ssv)
                        __attribute__nonnull__(pTHX_1)
@@ -2520,8 +3791,11 @@ PERL_CALLCONV char*      Perl_my_atof2(pTHX_ const char *s, NV* value)
                        __attribute__nonnull__(pTHX_2);
 
 PERL_CALLCONV int      Perl_my_socketpair(int family, int type, int protocol, int fd[2]);
-#ifdef PERL_COPY_ON_WRITE
-PERL_CALLCONV SV*      Perl_sv_setsv_cow(pTHX_ SV* dsv, SV* ssv);
+#ifdef PERL_OLD_COPY_ON_WRITE
+PERL_CALLCONV SV*      Perl_sv_setsv_cow(pTHX_ SV* dsv, SV* ssv)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
 #endif
 
 #if defined(USE_PERLIO) && !defined(USE_SFIO)
@@ -2551,28 +3825,44 @@ PERL_CALLCONV int       Perl_PerlIO_seek(pTHX_ PerlIO *f, Off_t offset, int whence);
 
 PERL_CALLCONV STDCHAR *        Perl_PerlIO_get_base(pTHX_ PerlIO *f);
 PERL_CALLCONV STDCHAR *        Perl_PerlIO_get_ptr(pTHX_ PerlIO *f);
-PERL_CALLCONV int      Perl_PerlIO_get_bufsiz(pTHX_ PerlIO *f);
-PERL_CALLCONV int      Perl_PerlIO_get_cnt(pTHX_ PerlIO *f);
+PERL_CALLCONV int      Perl_PerlIO_get_bufsiz(pTHX_ PerlIO *f)
+                       __attribute__warn_unused_result__;
+
+PERL_CALLCONV int      Perl_PerlIO_get_cnt(pTHX_ PerlIO *f)
+                       __attribute__warn_unused_result__;
+
+
+PERL_CALLCONV PerlIO * Perl_PerlIO_stdin(pTHX)
+                       __attribute__warn_unused_result__;
+
+PERL_CALLCONV PerlIO * Perl_PerlIO_stdout(pTHX)
+                       __attribute__warn_unused_result__;
+
+PERL_CALLCONV PerlIO * Perl_PerlIO_stderr(pTHX)
+                       __attribute__warn_unused_result__;
 
-PERL_CALLCONV PerlIO * Perl_PerlIO_stdin(pTHX);
-PERL_CALLCONV PerlIO * Perl_PerlIO_stdout(pTHX);
-PERL_CALLCONV PerlIO * Perl_PerlIO_stderr(pTHX);
 #endif /* PERLIO_LAYERS */
 
 PERL_CALLCONV void     Perl_deb_stack_all(pTHX);
 #ifdef PERL_IN_DEB_C
-STATIC void    S_deb_stack_n(pTHX_ SV** stack_base, I32 stack_min, I32 stack_max, I32 mark_min, I32 mark_max);
+STATIC void    S_deb_stack_n(pTHX_ SV** stack_base, I32 stack_min, I32 stack_max, I32 mark_min, I32 mark_max)
+                       __attribute__nonnull__(pTHX_1);
+
 #endif
 
 PERL_CALLCONV PADLIST* Perl_pad_new(pTHX_ int flags)
                        __attribute__malloc__
                        __attribute__warn_unused_result__;
 
-PERL_CALLCONV void     Perl_pad_undef(pTHX_ CV* cv);
+PERL_CALLCONV void     Perl_pad_undef(pTHX_ CV* cv)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV PADOFFSET        Perl_pad_add_name(pTHX_ const char *name, HV* typestash, HV* ourstash, bool clone)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV PADOFFSET        Perl_pad_add_anon(pTHX_ SV* sv, OPCODE op_type);
+PERL_CALLCONV PADOFFSET        Perl_pad_add_anon(pTHX_ SV* sv, OPCODE op_type)
+                       __attribute__nonnull__(pTHX_1);
+
 PERL_CALLCONV void     Perl_pad_check_dup(pTHX_ const char* name, bool is_our, const HV* ourstash)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_3);
@@ -2588,16 +3878,25 @@ PERL_CALLCONV void      Perl_do_dump_pad(pTHX_ I32 level, PerlIO *file, PADLIST *padl
                        __attribute__nonnull__(pTHX_2);
 
 PERL_CALLCONV void     Perl_pad_fixup_inner_anons(pTHX_ PADLIST *padlist, CV *old_cv, CV *new_cv)
-                       __attribute__nonnull__(pTHX_1);
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
 
 
 PERL_CALLCONV void     Perl_pad_push(pTHX_ PADLIST *padlist, int depth)
                        __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV HV*      Perl_pad_compname_type(pTHX_ const PADOFFSET po);
+PERL_CALLCONV HV*      Perl_pad_compname_type(pTHX_ const PADOFFSET po)
+                       __attribute__warn_unused_result__;
+
 
 #if defined(PERL_IN_PAD_C) || defined(PERL_DECL_PROT)
-STATIC PADOFFSET       S_pad_findlex(pTHX_ const char *name, const CV* cv, U32 seq, int warn, SV** out_capture, SV** out_name_sv, int *out_flags);
+STATIC PADOFFSET       S_pad_findlex(pTHX_ const char *name, const CV* cv, U32 seq, int warn, SV** out_capture, SV** out_name_sv, int *out_flags)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_6)
+                       __attribute__nonnull__(pTHX_7);
+
 #  if defined(DEBUGGING)
 STATIC void    S_cv_dump(pTHX_ const CV *cv, const char *title)
                        __attribute__nonnull__(pTHX_1)
@@ -2610,18 +3909,16 @@ PERL_CALLCONV CV*       Perl_find_runcv(pTHX_ U32 *db_seqp)
 
 PERL_CALLCONV void     Perl_free_tied_hv_pool(pTHX);
 #if defined(DEBUGGING)
-PERL_CALLCONV int      Perl_get_debug_opts(pTHX_ const char **s, bool givehelp);
+PERL_CALLCONV int      Perl_get_debug_opts(pTHX_ const char **s, bool givehelp)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
 #endif
 PERL_CALLCONV void     Perl_save_set_svflags(pTHX_ SV* sv, U32 mask, U32 val);
 PERL_CALLCONV void     Perl_hv_assert(pTHX_ HV* tb)
                        __attribute__nonnull__(pTHX_1);
 
 
-#if defined(PERL_IN_HV_C) || defined(PERL_DECL_PROT)
-STATIC SV*     S_hv_delete_common(pTHX_ HV* tb, SV* key_sv, const char* key, STRLEN klen, int k_flags, I32 d_flags, U32 hash);
-STATIC HE*     S_hv_fetch_common(pTHX_ HV* tb, SV* key_sv, const char* key, STRLEN klen, int flags, int action, SV* val, U32 hash);
-#endif
-
 PERL_CALLCONV SV*      Perl_hv_scalar(pTHX_ HV* hv)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
@@ -2740,15 +4037,51 @@ PERL_CALLCONV long      Perl_my_htobel(long n);
 PERL_CALLCONV long     Perl_my_betohl(long n);
 #endif
 
-PERL_CALLCONV void     Perl_my_swabn(void* ptr, int n);
+PERL_CALLCONV void     Perl_my_swabn(void* ptr, int n)
+                       __attribute__nonnull__(1);
+
+
+PERL_CALLCONV GV*      Perl_gv_fetchpvn_flags(pTHX_ const char* name, STRLEN len, I32 flags, I32 sv_type)
+                       __attribute__nonnull__(pTHX_1);
+
+PERL_CALLCONV GV*      Perl_gv_fetchsv(pTHX_ SV *name, I32 flags, I32 sv_type)
+                       __attribute__nonnull__(pTHX_1);
 
-PERL_CALLCONV GV*      Perl_gv_fetchpvn_flags(pTHX_ const char* name, STRLEN len, I32 flags, I32 sv_type);
-PERL_CALLCONV GV*      Perl_gv_fetchsv(pTHX_ SV *name, I32 flags, I32 sv_type);
 PERL_CALLCONV bool     Perl_is_gv_magical_sv(pTHX_ SV *name, U32 flags)
-                       __attribute__warn_unused_result__;
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+
+
+PERL_CALLCONV bool     Perl_stashpv_hvname_match(pTHX_ const COP *cop, const HV *hv)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+
+
+#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
+PERL_CALLCONV void     Perl_dump_sv_child(pTHX_ SV *sv)
+                       __attribute__nonnull__(pTHX_1);
+
+#endif
+
+#ifdef PERL_DONT_CREATE_GVSV
+PERL_CALLCONV GV*      Perl_gv_SVadd(pTHX_ GV* gv)
+                       __attribute__nonnull__(pTHX_1);
+
+#endif
+PERL_CALLCONV bool     Perl_ckwarn(pTHX_ U32 w);
+PERL_CALLCONV bool     Perl_ckwarn_d(pTHX_ U32 w);
+
+PERL_CALLCONV void     Perl_offer_nice_chunk(pTHX_ void *chunk, U32 chunk_size)
+                       __attribute__nonnull__(pTHX_1);
 
 
-PERL_CALLCONV char*    Perl_savesvpv(pTHX_ SV* sv);
+#ifndef SPRINTF_RETURNS_STRLEN
+PERL_CALLCONV int      Perl_my_sprintf(char *buffer, const char *pat, ...)
+                       __attribute__nonnull__(1)
+                       __attribute__nonnull__(2);
+
+#endif
 
 END_EXTERN_C
 /*