dTHX;
#endif
Malloc_t ptr;
+
+#ifdef USE_MDH
+ if (size + PERL_MEMORY_DEBUG_HEADER_SIZE < size)
+ goto out_of_memory;
size += PERL_MEMORY_DEBUG_HEADER_SIZE;
+#endif
#ifdef DEBUGGING
if ((SSize_t)size < 0)
Perl_croak_nocontext("panic: malloc, size=%"UVuf, (UV) size);
#ifdef MDH_HAS_SIZE
header->size = size;
#endif
- ptr = (Malloc_t)((char*)ptr+PERL_MEMORY_DEBUG_HEADER_SIZE);
+ ptr = (Malloc_t)((char*)ptr+PERL_MEMORY_DEBUG_HEADER_SIZE);
DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%"UVxf": (%05ld) malloc %ld bytes\n",PTR2UV(ptr),(long)PL_an++,(long)size));
- return ptr;
-}
+
+ }
else {
+#ifdef USE_MDH
+ out_of_memory:
+#endif
+ {
#ifndef ALWAYS_NEED_THX
- dTHX;
+ dTHX;
#endif
- if (PL_nomemok)
- return NULL;
- else {
- croak_no_mem();
- }
+ if (PL_nomemok)
+ ptr = NULL;
+ else
+ croak_no_mem();
+ }
}
- /*NOTREACHED*/
+ return ptr;
}
/* paranoid version of system's realloc() */
if (!size) {
safesysfree(where);
- return NULL;
+ ptr = NULL;
}
-
- if (!where)
- return safesysmalloc(size);
+ else if (!where) {
+ ptr = safesysmalloc(size);
+ }
+ else {
#ifdef USE_MDH
- where = (Malloc_t)((char*)where-PERL_MEMORY_DEBUG_HEADER_SIZE);
- size += PERL_MEMORY_DEBUG_HEADER_SIZE;
- {
- struct perl_memory_debug_header *const header
- = (struct perl_memory_debug_header *)where;
+ where = (Malloc_t)((char*)where-PERL_MEMORY_DEBUG_HEADER_SIZE);
+ if (size + PERL_MEMORY_DEBUG_HEADER_SIZE < size)
+ goto out_of_memory;
+ size += PERL_MEMORY_DEBUG_HEADER_SIZE;
+ {
+ struct perl_memory_debug_header *const header
+ = (struct perl_memory_debug_header *)where;
# ifdef PERL_TRACK_MEMPOOL
- if (header->interpreter != aTHX) {
- Perl_croak_nocontext("panic: realloc from wrong pool, %p!=%p",
- header->interpreter, aTHX);
- }
- assert(header->next->prev == header);
- assert(header->prev->next == header);
+ if (header->interpreter != aTHX) {
+ Perl_croak_nocontext("panic: realloc from wrong pool, %p!=%p",
+ header->interpreter, aTHX);
+ }
+ assert(header->next->prev == header);
+ assert(header->prev->next == header);
# ifdef PERL_POISON
- if (header->size > size) {
- const MEM_SIZE freed_up = header->size - size;
- char *start_of_freed = ((char *)where) + size;
- PoisonFree(start_of_freed, freed_up, char);
- }
+ if (header->size > size) {
+ const MEM_SIZE freed_up = header->size - size;
+ char *start_of_freed = ((char *)where) + size;
+ PoisonFree(start_of_freed, freed_up, char);
+ }
# endif
# endif
# ifdef MDH_HAS_SIZE
- header->size = size;
+ header->size = size;
# endif
- }
+ }
#endif
#ifdef DEBUGGING
- if ((SSize_t)size < 0)
- Perl_croak_nocontext("panic: realloc, size=%"UVuf, (UV)size);
+ if ((SSize_t)size < 0)
+ Perl_croak_nocontext("panic: realloc, size=%"UVuf, (UV)size);
#endif
#ifdef PERL_DEBUG_READONLY_COW
- if ((ptr = mmap(0, size, PROT_READ|PROT_WRITE,
- MAP_ANON|MAP_PRIVATE, -1, 0)) == MAP_FAILED) {
- perror("mmap failed");
- abort();
- }
- Copy(where,ptr,oldsize < size ? oldsize : size,char);
- if (munmap(where, oldsize)) {
- perror("munmap failed");
- abort();
- }
+ if ((ptr = mmap(0, size, PROT_READ|PROT_WRITE,
+ MAP_ANON|MAP_PRIVATE, -1, 0)) == MAP_FAILED) {
+ perror("mmap failed");
+ abort();
+ }
+ Copy(where,ptr,oldsize < size ? oldsize : size,char);
+ if (munmap(where, oldsize)) {
+ perror("munmap failed");
+ abort();
+ }
#else
- ptr = (Malloc_t)PerlMem_realloc(where,size);
+ ptr = (Malloc_t)PerlMem_realloc(where,size);
#endif
- PERL_ALLOC_CHECK(ptr);
+ PERL_ALLOC_CHECK(ptr);
/* MUST do this fixup first, before doing ANYTHING else, as anything else
might allocate memory/free/move memory, and until we do the fixup, it
may well be chasing (and writing to) free memory. */
- if (ptr != NULL) {
+ if (ptr != NULL) {
#ifdef PERL_TRACK_MEMPOOL
- struct perl_memory_debug_header *const header
- = (struct perl_memory_debug_header *)ptr;
+ struct perl_memory_debug_header *const header
+ = (struct perl_memory_debug_header *)ptr;
# ifdef PERL_POISON
- if (header->size < size) {
- const MEM_SIZE fresh = size - header->size;
- char *start_of_fresh = ((char *)ptr) + size;
- PoisonNew(start_of_fresh, fresh, char);
- }
+ if (header->size < size) {
+ const MEM_SIZE fresh = size - header->size;
+ char *start_of_fresh = ((char *)ptr) + size;
+ PoisonNew(start_of_fresh, fresh, char);
+ }
# endif
- maybe_protect_rw(header->next);
- header->next->prev = header;
- maybe_protect_ro(header->next);
- maybe_protect_rw(header->prev);
- header->prev->next = header;
- maybe_protect_ro(header->prev);
+ maybe_protect_rw(header->next);
+ header->next->prev = header;
+ maybe_protect_ro(header->next);
+ maybe_protect_rw(header->prev);
+ header->prev->next = header;
+ maybe_protect_ro(header->prev);
#endif
- ptr = (Malloc_t)((char*)ptr+PERL_MEMORY_DEBUG_HEADER_SIZE);
- }
+ ptr = (Malloc_t)((char*)ptr+PERL_MEMORY_DEBUG_HEADER_SIZE);
+ }
/* In particular, must do that fixup above before logging anything via
*printf(), as it can reallocate memory, which can cause SEGVs. */
- DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%"UVxf": (%05ld) rfree\n",PTR2UV(where),(long)PL_an++));
- DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%"UVxf": (%05ld) realloc %ld bytes\n",PTR2UV(ptr),(long)PL_an++,(long)size));
-
+ DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%"UVxf": (%05ld) rfree\n",PTR2UV(where),(long)PL_an++));
+ DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%"UVxf": (%05ld) realloc %ld bytes\n",PTR2UV(ptr),(long)PL_an++,(long)size));
- if (ptr != NULL) {
- return ptr;
- }
- else {
+ if (ptr == NULL) {
+#ifdef USE_MDH
+ out_of_memory:
+#endif
+ {
#ifndef ALWAYS_NEED_THX
- dTHX;
+ dTHX;
#endif
- if (PL_nomemok)
- return NULL;
- else {
- croak_no_mem();
+ if (PL_nomemok)
+ ptr = NULL;
+ else
+ croak_no_mem();
+ }
}
}
- /*NOTREACHED*/
+ return ptr;
}
/* safe version of system's free() */
PERL_ARGS_ASSERT_INSTR;
- /* libc prior to 4.6.27 (late 1994) did not work properly on a NULL
- * 'little' */
- if (!little)
- return (char*)big;
return strstr((char*)big, (char*)little);
}
if (o->op_flags & OPf_KIDS) {
const OP *kid;
- for (kid = cUNOPo->op_first; kid; kid = OP_SIBLING(kid)) {
+ for (kid = cUNOPo->op_first; kid; kid = OpSIBLING(kid)) {
const COP *new_cop;
/* If the OP_NEXTSTATE has been optimised away we can still use it
#if defined(USE_C_BACKTRACE) && defined(USE_C_BACKTRACE_ON_ERROR)
{
char *ws;
- int wi;
+ UV wi;
/* The PERL_C_BACKTRACE_ON_WARN must be an integer of one or more. */
- if ((ws = PerlEnv_getenv("PERL_C_BACKTRACE_ON_ERROR")) &&
- (wi = grok_atou(ws, NULL)) > 0) {
- Perl_dump_c_backtrace(aTHX_ Perl_debug_log, wi, 1);
+ if ((ws = PerlEnv_getenv("PERL_C_BACKTRACE_ON_ERROR"))
+ && grok_atoUV(ws, &wi, NULL)
+ && wi <= PERL_INT_MAX
+ ) {
+ Perl_dump_c_backtrace(aTHX_ Perl_debug_log, (int)wi, 1);
}
}
#endif
*/
const COP *cop =
- closest_cop(PL_curcop, OP_SIBLING(PL_curcop), PL_op, FALSE);
+ closest_cop(PL_curcop, OpSIBLING(PL_curcop), PL_op, FALSE);
if (!cop)
cop = PL_curcop;
{
PERL_ARGS_ASSERT_DIE_SV;
croak_sv(baseex);
- assert(0); /* NOTREACHED */
+ /* NOTREACHED */
NORETURN_FUNCTION_END;
}
#ifdef _MSC_VER
va_list args;
va_start(args, pat);
vcroak(pat, &args);
- assert(0); /* NOTREACHED */
+ NOT_REACHED; /* NOTREACHED */
va_end(args);
NORETURN_FUNCTION_END;
}
va_list args;
va_start(args, pat);
vcroak(pat, &args);
- assert(0); /* NOTREACHED */
+ NOT_REACHED; /* NOTREACHED */
va_end(args);
NORETURN_FUNCTION_END;
}
va_list args;
va_start(args, pat);
vcroak(pat, &args);
- assert(0); /* NOTREACHED */
+ NOT_REACHED; /* NOTREACHED */
va_end(args);
}
#endif /* PERL_IMPLICIT_CONTEXT */
va_list args;
va_start(args, pat);
vcroak(pat, &args);
- assert(0); /* NOTREACHED */
+ NOT_REACHED; /* NOTREACHED */
va_end(args);
}
*statusp = SvIVX(sv);
/* The hash iterator is currently on this entry, so simply
calling hv_delete would trigger the lazy delete, which on
- aggregate does more work, beacuse next call to hv_iterinit()
+ aggregate does more work, because next call to hv_iterinit()
would spot the flag, and have to call the delete routine,
while in the meantime any new entries can't re-use that
memory. */
/* Originally written in Perl by John Bazik; rewritten in C by Ben Sugars.
* rewritten again by dougm, optimized for use with xs TARG, and to prefer
* getcwd(3) if available
- * Comments from the orignal:
+ * Comments from the original:
* This is a faster version of getcwd. It's also more dangerous
* because you might chdir out of a directory that you can't chdir
* back into. */
if (*p) {
if (isDIGIT(*p)) {
const char* endptr;
- opt = (U32) grok_atou(p, &endptr);
- p = endptr;
- if (*p && *p != '\n' && *p != '\r') {
- if(isSPACE(*p)) goto the_end_of_the_opts_parser;
- else
- Perl_croak(aTHX_ "Unknown Unicode option letter '%c'", *p);
- }
- }
- else {
+ UV uv;
+ if (grok_atoUV(p, &uv, &endptr)
+ && uv <= U32_MAX
+ && (p = endptr)
+ && *p && *p != '\n' && *p != '\r'
+ ) {
+ opt = (U32)uv;
+ if (isSPACE(*p))
+ goto the_end_of_the_opts_parser;
+ else
+ Perl_croak(aTHX_ "Unknown Unicode option letter '%c'", *p);
+ }
+ }
+ else {
for (; *p; p++) {
switch (*p) {
case PERL_UNICODE_STDIN:
#ifdef PERL_MEM_LOG
-/* -DPERL_MEM_LOG: the Perl_mem_log_..() is compiled, including the
+/* -DPERL_MEM_LOG: the Perl_mem_log_..() is compiled, including
* the default implementation, unless -DPERL_MEM_LOG_NOIMPL is also
* given, and you supply your own implementation.
*
* The default implementation reads a single env var, PERL_MEM_LOG,
* expecting one or more of the following:
*
- * \d+ - fd fd to write to : must be 1st (grok_atou)
+ * \d+ - fd fd to write to : must be 1st (grok_atoUV)
* 'm' - memlog was PERL_MEM_LOG=1
* 's' - svlog was PERL_SV_LOG=1
* 't' - timestamp was PERL_MEM_LOG_TIMESTAMP=1
{
STRLEN len;
const char* endptr;
- int fd = grok_atou(pmlenv, &endptr); /* Ignore endptr. */
- if (!fd)
+ int fd;
+ UV uv;
+ if (grok_atoUV(pmlenv, &uv, &endptr) /* Ignore endptr. */
+ && uv && uv <= PERL_INT_MAX
+ ) {
+ fd = (int)uv;
+ } else {
fd = PERL_MEM_LOG_FD;
+ }
if (strchr(pmlenv, 't')) {
len = my_snprintf(buf, sizeof(buf),
#endif /* PERL_IMPLICIT_CONTEXT */
-/* The meaning of the varargs is determined U32 key arg. This is not a format
- string. The U32 key is assembled with HS_KEY.
-
- v_my_perl arg is "PerlInterpreter * my_perl" if PERL_IMPLICIT_CONTEXT and
- otherwise "CV * cv" (boot xsub's CV *). v_my_perl will catch where a threaded
- future perl526.dll calling IO.dll for example, and IO.dll was linked with
- threaded perl524.dll, and both perl526.dll and perl524.dll are in %PATH and
- the Win32 DLL loader sucessfully can load IO.dll into the process but
- simultaniously it loaded a interp of a different version into the process,
- and XS code will naturally pass SV*s created by perl524.dll for perl526.dll
- to use through perl526.dll's my_perl->Istack_base.
-
- v_my_perl (v=void) can not be the first arg since then key will be out of
- place in a threaded vs non-threaded mixup and analyzing the key number's
- bitfields won't reveal the problem since it will be a valid key
- (unthreaded perl) on interp side, but croak reports the XS mod's key as
- gibberish (it is really my_perl ptr) (threaded XS mod), or if threaded perl
- and unthreaded XS module, threaded perl will look at uninit C stack or uninit
- register to get var key (remember it assumes 1st arg is interp cxt).
-
-Perl_xs_handshake(U32 key, void * v_my_perl, const char * file,
-[U32 items, U32 ax], [char * api_version], [char * xs_version]) */
+/* Perl_xs_handshake():
+ implement the various XS_*_BOOTCHECK macros, which are added to .c
+ files by ExtUtils::ParseXS, to check that the perl the module was built
+ with is binary compatible with the running perl.
+
+ usage:
+ Perl_xs_handshake(U32 key, void * v_my_perl, const char * file,
+ [U32 items, U32 ax], [char * api_version], [char * xs_version])
+
+ The meaning of the varargs is determined the U32 key arg (which is not
+ a format string). The fields of key are assembled by using HS_KEY().
+
+ Under PERL_IMPLICIT_CONTEX, the v_my_perl arg is of type
+ "PerlInterpreter *" and represents the callers context; otherwise it is
+ of type "CV *", and is the boot xsub's CV.
+
+ v_my_perl will catch where a threaded future perl526.dll calling IO.dll
+ for example, and IO.dll was linked with threaded perl524.dll, and both
+ perl526.dll and perl524.dll are in %PATH and the Win32 DLL loader
+ successfully can load IO.dll into the process but simultaneously it
+ loaded an interpreter of a different version into the process, and XS
+ code will naturally pass SV*s created by perl524.dll for perl526.dll to
+ use through perl526.dll's my_perl->Istack_base.
+
+ v_my_perl cannot be the first arg, since then 'key' will be out of
+ place in a threaded vs non-threaded mixup; and analyzing the key
+ number's bitfields won't reveal the problem, since it will be a valid
+ key (unthreaded perl) on interp side, but croak will report the XS mod's
+ key as gibberish (it is really a my_perl ptr) (threaded XS mod); or if
+ it's a threaded perl and an unthreaded XS module, threaded perl will
+ look at an uninit C stack or an uninit register to get 'key'
+ (remember that it assumes that the 1st arg is the interp cxt).
+
+ 'file' is the source filename of the caller.
+*/
+
I32
Perl_xs_handshake(const U32 key, void * v_my_perl, const char * file, ...)
{
PERL_ARGS_ASSERT_XS_HANDSHAKE;
va_start(args, file);
- got = (void *)(key & HSm_KEY_MATCH);
+ got = INT2PTR(void*, (UV)(key & HSm_KEY_MATCH));
need = (void *)(HS_KEY(FALSE, FALSE, "", "") & HSm_KEY_MATCH);
- if(UNLIKELY(got != need))
+ if (UNLIKELY(got != need))
goto bad_handshake;
/* try to catch where a 2nd threaded perl interp DLL is loaded into a process
by a XS DLL compiled against the wrong interl DLL b/c of bad @INC, and the
if(UNLIKELY(got != need)) {
bad_handshake:/* recycle branch and string from above */
if(got != (void *)HSf_NOCHK)
- noperl_die("%s: Invalid handshake key got %p"
- " needed %p, binaries are mismatched",
+ noperl_die("%s: loadable library and perl binaries are mismatched"
+ " (got handshake key %p, needed %p)\n",
file, got, need);
}
U32 xsverlen;
assert(HS_GETXSVERLEN(key) <= UCHAR_MAX && HS_GETXSVERLEN(key) <= HS_APIVERLEN_MAX);
if((xsverlen = HS_GETXSVERLEN(key)))
- Perl_xs_version_bootcheck(aTHX_
+ S_xs_version_bootcheck(aTHX_
items, ax, va_arg(args, char*), xsverlen);
}
va_end(args);
return ax;
}
-void
-Perl_xs_version_bootcheck(pTHX_ U32 items, U32 ax, const char *xs_p,
+
+STATIC void
+S_xs_version_bootcheck(pTHX_ U32 items, U32 ax, const char *xs_p,
STRLEN xs_len)
{
SV *sv;
return dir->dd_fd;
#else
Perl_croak_nocontext(PL_no_func, "dirfd");
- assert(0); /* NOT REACHED */
+ NOT_REACHED; /* NOTREACHED */
return 0;
#endif
}
/* BFD open and scan only if the filename changed. */
if (ctx->fname_prev == NULL ||
strNE(dl_info->dli_fname, ctx->fname_prev)) {
+ if (ctx->abfd) {
+ bfd_close(ctx->abfd);
+ }
ctx->abfd = bfd_openr(dl_info->dli_fname, 0);
if (ctx->abfd) {
if (bfd_check_format(ctx->abfd, bfd_object)) {
const char* source_name_end;
const char* source_line_end;
const char* close_paren;
+ UV uv;
+
/* Skip trailing whitespace. */
while (p > start && isspace(*p)) p--;
/* Now we should be at the close paren. */
return NULL;
p++;
*source_name_size = source_name_end - p;
- *source_line = grok_atou(source_number_start, &source_line_end);
- if (source_line_end != close_paren)
- return NULL;
- return p;
+ if (grok_atoUV(source_number_start, &uv, &source_line_end)
+ && source_line_end == close_paren
+ && uv <= MAX_STRLEN
+ ) {
+ *source_line = (STRLEN)uv;
+ return p;
+ }
+ return NULL;
}
/* Given a raw frame, read a pipe from the symbolicator (that's the
}
#ifdef USE_BFD
Safefree(symbol_names);
+ if (bfd_ctx.abfd) {
+ bfd_close(bfd_ctx.abfd);
+ }
#endif
Safefree(source_lines);
Safefree(source_name_sizes);
https://perl5.git.perl.org / perl5.git / blobdiff