*
* Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
* 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
- * 2013, 2014, 2015, 2016, 2017 by Larry Wall and others
+ * 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
# endif
#endif
-#if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) && !defined(PERL_MICRO)
-char *getenv (char *); /* Usually in <stdlib.h> */
-#endif
-
static I32 read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen);
#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
PERL_SET_THX(my_perl);
OP_REFCNT_INIT;
OP_CHECK_MUTEX_INIT;
+ KEYWORD_PLUGIN_MUTEX_INIT;
HINTS_REFCNT_INIT;
LOCALE_INIT;
+ USER_PROP_MUTEX_INIT;
+ ENV_INIT;
MUTEX_INIT(&PL_dollarzero_mutex);
MUTEX_INIT(&PL_my_ctx_mutex);
# endif
=cut
*/
-static void
-S_fixup_platform_bugs(void)
-{
-#if defined(__GLIBC__) && IVSIZE == 8 \
- && ( __GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 8))
- {
- IV l = 3;
- IV r = -10;
- /* Cannot do this check with inlined IV constants since
- * that seems to work correctly even with the buggy glibc. */
- if (l % r == -3) {
- dTHX;
- /* Yikes, we have the bug.
- * Patch in the workaround version. */
- PL_ppaddr[OP_I_MODULO] = &Perl_pp_i_modulo_glibc_bugfix;
- }
- }
-#endif
-}
-
void
perl_construct(pTHXx)
{
SvREADONLY_on(&PL_sv_placeholder);
SvREFCNT(&PL_sv_placeholder) = SvREFCNT_IMMORTAL;
- PL_sighandlerp = (Sighandler_t) Perl_sighandler;
+ PL_sighandlerp = Perl_sighandler;
+ PL_sighandler1p = Perl_sighandler1;
+ PL_sighandler3p = Perl_sighandler3;
+
#ifdef PERL_USES_PL_PIDSTATUS
PL_pidstatus = newHV();
#endif
init_stacks();
- init_ids();
+/* The PERL_INTERNAL_RAND_SEED set-up must be after init_stacks because it calls
+ * things that may put SVs on the stack.
+ */
- S_fixup_platform_bugs();
+#ifdef NO_PERL_INTERNAL_RAND_SEED
+ Perl_drand48_init_r(&PL_internal_random_state, seed());
+#else
+ {
+ UV seed;
+ const char *env_pv;
+ if (PerlProc_getuid() != PerlProc_geteuid() ||
+ PerlProc_getgid() != PerlProc_getegid() ||
+ !(env_pv = PerlEnv_getenv("PERL_INTERNAL_RAND_SEED")) ||
+ grok_number(env_pv, strlen(env_pv), &seed) != IS_NUMBER_IN_UV) {
+ seed = seed();
+ }
+ Perl_drand48_init_r(&PL_internal_random_state, (U32)seed);
+ }
+#endif
+
+ init_ids();
JMPENV_BOOTSTRAP;
STATUS_ALL_SUCCESS;
- init_i18nl10n(1);
+ init_uniprops();
+ (void) uvchr_to_utf8_flags((U8 *) PL_TR_SPECIAL_HANDLING_UTF8,
+ TR_SPECIAL_HANDLING,
+ UNICODE_ALLOW_ABOVE_IV_MAX);
#if defined(LOCAL_PATCH_COUNT)
PL_localpatches = local_patches; /* For possible -v */
#endif
+#if defined(LIBM_LIB_VERSION)
+ /*
+ * Some BSDs and Cygwin default to POSIX math instead of IEEE.
+ * This switches them over to IEEE.
+ */
+ _LIB_VERSION = _IEEE_;
+#endif
+
#ifdef HAVE_INTERP_INTERN
sys_intern_init();
#endif
* constructing hashes */
PL_hash_seed_set= TRUE;
}
- /* Note that strtab is a rather special HV. Assumptions are made
- about not iterating on it, and not adding tie magic to it.
- It is properly deallocated in perl_destruct() */
- PL_strtab = newHV();
- /* SHAREKEYS tells us that the hash has its keys shared with PL_strtab,
- * which is not the case with PL_strtab itself */
- HvSHAREKEYS_off(PL_strtab); /* mandatory */
- hv_ksplit(PL_strtab, 1 << 11);
+ /* Allow PL_strtab to be pre-initialized before calling perl_construct.
+ * can use a custom optimized PL_strtab hash before calling perl_construct */
+ if (!PL_strtab) {
+ /* Note that strtab is a rather special HV. Assumptions are made
+ about not iterating on it, and not adding tie magic to it.
+ It is properly deallocated in perl_destruct() */
+ PL_strtab = newHV();
+
+ /* SHAREKEYS tells us that the hash has its keys shared with PL_strtab,
+ * which is not the case with PL_strtab itself */
+ HvSHAREKEYS_off(PL_strtab); /* mandatory */
+ hv_ksplit(PL_strtab, 1 << 11);
+ }
Zero(PL_sv_consts, SV_CONSTS_COUNT, SV*);
PL_mmap_page_size = sysconf(_SC_MMAP_PAGE_SIZE);
# endif
if ((long) PL_mmap_page_size < 0) {
- if (errno) {
- SV * const error = ERRSV;
- SvUPGRADE(error, SVt_PV);
- Perl_croak(aTHX_ "panic: sysconf: %s", SvPV_nolen_const(error));
- }
- else
- Perl_croak(aTHX_ "panic: sysconf: pagesize unknown");
+ Perl_croak(aTHX_ "panic: sysconf: %s",
+ errno ? Strerror(errno) : "pagesize unknown");
}
}
-#else
-# ifdef HAS_GETPAGESIZE
+#elif defined(HAS_GETPAGESIZE)
PL_mmap_page_size = getpagesize();
-# else
-# if defined(I_SYS_PARAM) && defined(PAGESIZE)
+#elif defined(I_SYS_PARAM) && defined(PAGESIZE)
PL_mmap_page_size = PAGESIZE; /* compiletime, bad */
-# endif
-# endif
#endif
if (PL_mmap_page_size <= 0)
Perl_croak(aTHX_ "panic: bad pagesize %" IVdf,
/* Start with 1 bucket, for DFS. It's unlikely we'll need more. */
HvMAX(PL_registered_mros) = 0;
- PL_XPosix_ptrs[_CC_ASCII] = _new_invlist_C_array(ASCII_invlist);
- PL_XPosix_ptrs[_CC_ALPHANUMERIC] = _new_invlist_C_array(XPosixAlnum_invlist);
- PL_XPosix_ptrs[_CC_ALPHA] = _new_invlist_C_array(XPosixAlpha_invlist);
- PL_XPosix_ptrs[_CC_BLANK] = _new_invlist_C_array(XPosixBlank_invlist);
- PL_XPosix_ptrs[_CC_CASED] = _new_invlist_C_array(Cased_invlist);
- PL_XPosix_ptrs[_CC_CNTRL] = _new_invlist_C_array(XPosixCntrl_invlist);
- PL_XPosix_ptrs[_CC_DIGIT] = _new_invlist_C_array(XPosixDigit_invlist);
- PL_XPosix_ptrs[_CC_GRAPH] = _new_invlist_C_array(XPosixGraph_invlist);
- PL_XPosix_ptrs[_CC_LOWER] = _new_invlist_C_array(XPosixLower_invlist);
- PL_XPosix_ptrs[_CC_PRINT] = _new_invlist_C_array(XPosixPrint_invlist);
- PL_XPosix_ptrs[_CC_PUNCT] = _new_invlist_C_array(XPosixPunct_invlist);
- PL_XPosix_ptrs[_CC_SPACE] = _new_invlist_C_array(XPerlSpace_invlist);
- PL_XPosix_ptrs[_CC_UPPER] = _new_invlist_C_array(XPosixUpper_invlist);
- PL_XPosix_ptrs[_CC_VERTSPACE] = _new_invlist_C_array(VertSpace_invlist);
- PL_XPosix_ptrs[_CC_WORDCHAR] = _new_invlist_C_array(XPosixWord_invlist);
- PL_XPosix_ptrs[_CC_XDIGIT] = _new_invlist_C_array(XPosixXDigit_invlist);
- PL_GCB_invlist = _new_invlist_C_array(_Perl_GCB_invlist);
- PL_SB_invlist = _new_invlist_C_array(_Perl_SB_invlist);
- PL_WB_invlist = _new_invlist_C_array(_Perl_WB_invlist);
- PL_LB_invlist = _new_invlist_C_array(_Perl_LB_invlist);
- PL_Assigned_invlist = _new_invlist_C_array(Assigned_invlist);
-#ifdef USE_THREAD_SAFE_LOCALE
+#ifdef USE_POSIX_2008_LOCALE
PL_C_locale_obj = newlocale(LC_ALL_MASK, "C", NULL);
#endif
ENTER;
+ init_i18nl10n(1);
}
/*
/*
=for apidoc perl_destruct
-Shuts down a Perl interpreter. See L<perlembed>.
+Shuts down a Perl interpreter. See L<perlembed> for a tutorial.
+
+C<my_perl> points to the Perl interpreter. It must have been previously
+created through the use of L</perl_alloc> and L</perl_construct>. It may
+have been initialised through L</perl_parse>, and may have been used
+through L</perl_run> and other means. This function should be called for
+any Perl interpreter that has been constructed with L</perl_construct>,
+even if subsequent operations on it failed, for example if L</perl_parse>
+returned a non-zero value.
+
+If the interpreter's C<PL_exit_flags> word has the
+C<PERL_EXIT_DESTRUCT_END> flag set, then this function will execute code
+in C<END> blocks before performing the rest of destruction. If it is
+desired to make any use of the interpreter between L</perl_parse> and
+L</perl_destruct> other than just calling L</perl_run>, then this flag
+should be set early on. This matters if L</perl_run> will not be called,
+or if anything else will be done in addition to calling L</perl_run>.
+
+Returns a value be a suitable value to pass to the C library function
+C<exit> (or to return from C<main>), to serve as an exit code indicating
+the nature of the way the interpreter terminated. This takes into account
+any failure of L</perl_parse> and any early exit from L</perl_run>.
+The exit code is of the type required by the host operating system,
+so because of differing exit code conventions it is not portable to
+interpret specific numeric values as having specific meanings.
=cut
*/
perl_destruct(pTHXx)
{
dVAR;
- VOL signed char destruct_level; /* see possible values in intrpvar.h */
+ volatile signed char destruct_level; /* see possible values in intrpvar.h */
HV *hv;
#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
pid_t child;
PERL_WAIT_FOR_CHILDREN;
destruct_level = PL_perl_destruct_level;
-#if defined(DEBUGGING) || defined(PERL_TRACK_MEMPOOL)
{
const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL");
if (s) {
else
i = 0;
}
-#ifdef DEBUGGING
if (destruct_level < i) destruct_level = i;
-#endif
#ifdef PERL_TRACK_MEMPOOL
/* RT #114496, for perl_free */
PL_perl_destruct_level = i;
#endif
}
}
-#endif
if (PL_exit_flags & PERL_EXIT_DESTRUCT_END) {
dJMPENV;
FREETMPS;
assert(PL_scopestack_ix == 0);
+ /* normally when we get here, PL_parser should be null due to having
+ * its original (null) value restored by SAVEt_PARSER during leaving
+ * scope (usually before run-time starts in fact).
+ * But if a thread is created within a BEGIN block, the parser is
+ * duped, but the SAVEt_PARSER savestack entry isn't. So PL_parser
+ * never gets cleaned up.
+ * Clean it up here instead. This is a bit of a hack.
+ */
+ if (PL_parser) {
+ /* stop parser_free() stomping on PL_curcop */
+ PL_parser->saved_curcop = PL_curcop;
+ parser_free(PL_parser);
+ }
+
+
/* Need to flush since END blocks can produce output */
/* flush stdout separately, since we can identify it */
#ifdef USE_PERLIO
if (*stdo && PerlIO_flush(stdo)) {
PerlIO_restore_errno(stdo);
if (errno)
- PerlIO_printf(PerlIO_stderr(), "Unable to flush stdout: %s",
+ PerlIO_printf(PerlIO_stderr(), "Unable to flush stdout: %s\n",
Strerror(errno));
if (!STATUS_UNIX)
STATUS_ALL_FAILURE;
fail gracefully */
int fd[2];
- if(socketpair(AF_UNIX, SOCK_STREAM, 0, fd)) {
+ if(PerlSock_socketpair_cloexec(AF_UNIX, SOCK_STREAM, 0, fd)) {
perror("Debug leaking scalars socketpair failed");
abort();
}
back into Perl_debug_log, as if we never actually closed it
*/
if(got_fd != debug_fd) {
- if (dup2(got_fd, debug_fd) == -1) {
+ if (PerlLIO_dup2_cloexec(got_fd, debug_fd) == -1) {
where = "dup2";
goto abort;
}
Safefree(PL_collation_name);
PL_collation_name = NULL;
#endif
-
+#if defined(USE_POSIX_2008_LOCALE) \
+ && defined(USE_THREAD_SAFE_LOCALE) \
+ && ! defined(HAS_QUERYLOCALE)
+ for (i = 0; i < (int) C_ARRAY_LENGTH(PL_curlocales); i++) {
+ Safefree(PL_curlocales[i]);
+ PL_curlocales[i] = NULL;
+ }
+#endif
+#ifdef HAS_POSIX_2008_LOCALE
+ {
+ /* This also makes sure we aren't using a locale object that gets freed
+ * below */
+ const locale_t old_locale = uselocale(LC_GLOBAL_LOCALE);
+ if ( old_locale != LC_GLOBAL_LOCALE
+# ifdef USE_POSIX_2008_LOCALE
+ && old_locale != PL_C_locale_obj
+# endif
+ ) {
+ DEBUG_Lv(PerlIO_printf(Perl_debug_log,
+ "%s:%d: Freeing %p\n", __FILE__, __LINE__, old_locale));
+ freelocale(old_locale);
+ }
+ }
+# ifdef USE_LOCALE_NUMERIC
+ if (PL_underlying_numeric_obj) {
+ DEBUG_Lv(PerlIO_printf(Perl_debug_log,
+ "%s:%d: Freeing %p\n", __FILE__, __LINE__,
+ PL_underlying_numeric_obj));
+ freelocale(PL_underlying_numeric_obj);
+ PL_underlying_numeric_obj = (locale_t) NULL;
+ }
+# endif
+#endif
#ifdef USE_LOCALE_NUMERIC
Safefree(PL_numeric_name);
PL_numeric_name = NULL;
PL_numeric_radix_sv = NULL;
#endif
- /* clear character classes */
- for (i = 0; i < POSIX_SWASH_COUNT; i++) {
- SvREFCNT_dec(PL_utf8_swash_ptrs[i]);
- PL_utf8_swash_ptrs[i] = NULL;
+ if (PL_setlocale_buf) {
+ Safefree(PL_setlocale_buf);
+ PL_setlocale_buf = NULL;
}
- SvREFCNT_dec(PL_utf8_mark);
+
+ if (PL_langinfo_buf) {
+ Safefree(PL_langinfo_buf);
+ PL_langinfo_buf = NULL;
+ }
+
+#ifdef USE_LOCALE_CTYPE
+ SvREFCNT_dec(PL_warn_locale);
+ PL_warn_locale = NULL;
+#endif
+
+ SvREFCNT_dec(PL_AboveLatin1);
+ PL_AboveLatin1 = NULL;
+ SvREFCNT_dec(PL_Assigned_invlist);
+ PL_Assigned_invlist = NULL;
+ SvREFCNT_dec(PL_GCB_invlist);
+ PL_GCB_invlist = NULL;
+ SvREFCNT_dec(PL_HasMultiCharFold);
+ PL_HasMultiCharFold = NULL;
+ SvREFCNT_dec(PL_InMultiCharFold);
+ PL_InMultiCharFold = NULL;
+ SvREFCNT_dec(PL_Latin1);
+ PL_Latin1 = NULL;
+ SvREFCNT_dec(PL_LB_invlist);
+ PL_LB_invlist = NULL;
+ SvREFCNT_dec(PL_SB_invlist);
+ PL_SB_invlist = NULL;
+ SvREFCNT_dec(PL_SCX_invlist);
+ PL_SCX_invlist = NULL;
+ SvREFCNT_dec(PL_UpperLatin1);
+ PL_UpperLatin1 = NULL;
+ SvREFCNT_dec(PL_in_some_fold);
+ PL_in_some_fold = NULL;
+ SvREFCNT_dec(PL_utf8_idcont);
+ PL_utf8_idcont = NULL;
+ SvREFCNT_dec(PL_utf8_idstart);
+ PL_utf8_idstart = NULL;
+ SvREFCNT_dec(PL_utf8_perl_idcont);
+ PL_utf8_perl_idcont = NULL;
+ SvREFCNT_dec(PL_utf8_perl_idstart);
+ PL_utf8_perl_idstart = NULL;
+ SvREFCNT_dec(PL_utf8_xidcont);
+ PL_utf8_xidcont = NULL;
+ SvREFCNT_dec(PL_utf8_xidstart);
+ PL_utf8_xidstart = NULL;
+ SvREFCNT_dec(PL_WB_invlist);
+ PL_WB_invlist = NULL;
SvREFCNT_dec(PL_utf8_toupper);
+ PL_utf8_toupper = NULL;
SvREFCNT_dec(PL_utf8_totitle);
+ PL_utf8_totitle = NULL;
SvREFCNT_dec(PL_utf8_tolower);
+ PL_utf8_tolower = NULL;
SvREFCNT_dec(PL_utf8_tofold);
- SvREFCNT_dec(PL_utf8_idstart);
- SvREFCNT_dec(PL_utf8_idcont);
- SvREFCNT_dec(PL_utf8_foldable);
- SvREFCNT_dec(PL_utf8_foldclosures);
- SvREFCNT_dec(PL_AboveLatin1);
+ PL_utf8_tofold = NULL;
+ SvREFCNT_dec(PL_utf8_tosimplefold);
+ PL_utf8_tosimplefold = NULL;
+ SvREFCNT_dec(PL_utf8_charname_begin);
+ PL_utf8_charname_begin = NULL;
+ SvREFCNT_dec(PL_utf8_charname_continue);
+ PL_utf8_charname_continue = NULL;
+ SvREFCNT_dec(PL_utf8_mark);
+ PL_utf8_mark = NULL;
SvREFCNT_dec(PL_InBitmap);
- SvREFCNT_dec(PL_UpperLatin1);
- SvREFCNT_dec(PL_Latin1);
- SvREFCNT_dec(PL_NonL1NonFinalFold);
- SvREFCNT_dec(PL_HasMultiCharFold);
-#ifdef USE_LOCALE_CTYPE
- SvREFCNT_dec(PL_warn_locale);
-#endif
- PL_utf8_mark = NULL;
- PL_utf8_toupper = NULL;
- PL_utf8_totitle = NULL;
- PL_utf8_tolower = NULL;
- PL_utf8_tofold = NULL;
- PL_utf8_idstart = NULL;
- PL_utf8_idcont = NULL;
- PL_utf8_foldclosures = NULL;
- PL_AboveLatin1 = NULL;
- PL_InBitmap = NULL;
- PL_HasMultiCharFold = NULL;
-#ifdef USE_LOCALE_CTYPE
- PL_warn_locale = NULL;
-#endif
- PL_Latin1 = NULL;
- PL_NonL1NonFinalFold = NULL;
- PL_UpperLatin1 = NULL;
+ PL_InBitmap = NULL;
+ SvREFCNT_dec(PL_CCC_non0_non230);
+ PL_CCC_non0_non230 = NULL;
+ SvREFCNT_dec(PL_Private_Use);
+ PL_Private_Use = NULL;
+
for (i = 0; i < POSIX_CC_COUNT; i++) {
SvREFCNT_dec(PL_XPosix_ptrs[i]);
PL_XPosix_ptrs[i] = NULL;
+
+ if (i != _CC_CASED) { /* A copy of Alpha */
+ SvREFCNT_dec(PL_Posix_ptrs[i]);
+ PL_Posix_ptrs[i] = NULL;
+ }
}
- PL_GCB_invlist = NULL;
- PL_LB_invlist = NULL;
- PL_SB_invlist = NULL;
- PL_WB_invlist = NULL;
- PL_Assigned_invlist = NULL;
- if (!specialWARN(PL_compiling.cop_warnings))
- PerlMemShared_free(PL_compiling.cop_warnings);
- PL_compiling.cop_warnings = NULL;
+ free_and_set_cop_warnings(&PL_compiling, NULL);
cophh_free(CopHINTHASH_get(&PL_compiling));
CopHINTHASH_set(&PL_compiling, cophh_new_empty());
CopFILE_free(&PL_compiling);
SvANY(&PL_sv_no) = NULL;
SvFLAGS(&PL_sv_no) = 0;
+ SvREFCNT(&PL_sv_zero) = 0;
+ sv_clear(&PL_sv_zero);
+ SvANY(&PL_sv_zero) = NULL;
+ SvFLAGS(&PL_sv_zero) = 0;
+
{
int i;
for (i=0; i<=2; i++) {
for (sv = sva + 1; sv < svend; ++sv) {
if (SvTYPE(sv) != (svtype)SVTYPEMASK) {
PerlIO_printf(Perl_debug_log, "leaked: sv=0x%p"
- " flags=0x%"UVxf
- " refcnt=%"UVuf pTHX__FORMAT "\n"
+ " flags=0x%" UVxf
+ " refcnt=%" UVuf pTHX__FORMAT "\n"
"\tallocated at %s:%d %s %s (parent 0x%" UVxf ");"
"serial %" UVuf "\n",
(void*)sv, (UV)sv->sv_flags, (UV)sv->sv_refcnt
/*
=for apidoc perl_parse
-Tells a Perl interpreter to parse a Perl script. See L<perlembed>.
+Tells a Perl interpreter to parse a Perl script. This performs most
+of the initialisation of a Perl interpreter. See L<perlembed> for
+a tutorial.
+
+C<my_perl> points to the Perl interpreter that is to parse the script.
+It must have been previously created through the use of L</perl_alloc>
+and L</perl_construct>. C<xsinit> points to a callback function that
+will be called to set up the ability for this Perl interpreter to load
+XS extensions, or may be null to perform no such setup.
+
+C<argc> and C<argv> supply a set of command-line arguments to the Perl
+interpreter, as would normally be passed to the C<main> function of
+a C program. C<argv[argc]> must be null. These arguments are where
+the script to parse is specified, either by naming a script file or by
+providing a script in a C<-e> option.
+If L<C<$0>|perlvar/$0> will be written to in the Perl interpreter, then
+the argument strings must be in writable memory, and so mustn't just be
+string constants.
+
+C<env> specifies a set of environment variables that will be used by
+this Perl interpreter. If non-null, it must point to a null-terminated
+array of environment strings. If null, the Perl interpreter will use
+the environment supplied by the C<environ> global variable.
+
+This function initialises the interpreter, and parses and compiles the
+script specified by the command-line arguments. This includes executing
+code in C<BEGIN>, C<UNITCHECK>, and C<CHECK> blocks. It does not execute
+C<INIT> blocks or the main program.
+
+Returns an integer of slightly tricky interpretation. The correct
+use of the return value is as a truth value indicating whether there
+was a failure in initialisation. If zero is returned, this indicates
+that initialisation was successful, and it is safe to proceed to call
+L</perl_run> and make other use of it. If a non-zero value is returned,
+this indicates some problem that means the interpreter wants to terminate.
+The interpreter should not be just abandoned upon such failure; the caller
+should proceed to shut the interpreter down cleanly with L</perl_destruct>
+and free it with L</perl_free>.
+
+For historical reasons, the non-zero return value also attempts to
+be a suitable value to pass to the C library function C<exit> (or to
+return from C<main>), to serve as an exit code indicating the nature
+of the way initialisation terminated. However, this isn't portable,
+due to differing exit code conventions. A historical bug is preserved
+for the time being: if the Perl built-in C<exit> is called during this
+function's execution, with a type of exit entailing a zero exit code
+under the host operating system's conventions, then this function
+returns zero rather than a non-zero value. This bug, [perl #2754],
+leads to C<perl_run> being called (and therefore C<INIT> blocks and the
+main program running) despite a call to C<exit>. It has been preserved
+because a popular module-installing module has come to rely on it and
+needs time to be fixed. This issue is [perl #132577], and the original
+bug is due to be fixed in Perl 5.30.
=cut
*/
}
#endif
+ {
+ int i;
+ assert(argc >= 0);
+ for(i = 0; i != argc; i++)
+ assert(argv[i]);
+ assert(!argv[argc]);
+ }
PL_origargc = argc;
PL_origargv = argv;
call_list(oldscope, PL_checkav);
}
ret = STATUS_EXIT;
+ if (ret == 0) {
+ /*
+ * At this point we should do
+ * ret = 0x100;
+ * to avoid [perl #2754], but that bugfix has been postponed
+ * because of the Module::Install breakage it causes
+ * [perl #132577].
+ */
+ }
break;
case 3:
PerlIO_printf(Perl_error_log, "panic: top_env\n");
" PERL_USE_SAFE_PUTENV"
# endif
# ifdef SILENT_NO_TAINT_SUPPORT
- " SILENT_NO_TAINT_SUPPORT"
+ " SILENT_NO_TAINT_SUPPORT"
# endif
# ifdef UNLINK_ALL_VERSIONS
" UNLINK_ALL_VERSIONS"
# ifdef USE_SITECUSTOMIZE
" USE_SITECUSTOMIZE"
# endif
+# ifdef USE_THREAD_SAFE_LOCALE
+ " USE_THREAD_SAFE_LOCALE"
+# endif
;
PERL_UNUSED_ARG(cv);
PERL_UNUSED_VAR(items);
#endif
(s = PerlEnv_getenv("PERL5OPT")))
{
- /* s points to static memory in getenv(), which may be overwritten at
- * any time; use a mortal copy instead */
- s = SvPVX(sv_2mortal(newSVpv(s, 0)));
-
while (isSPACE(*s))
s++;
if (*s == '-' && *(s+1) == 'T') {
d = s;
if (!*s)
break;
- if (!strchr("CDIMUdmtwW", *s))
+ if (!memCHRs("CDIMUdmtwW", *s))
Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s);
while (++s && *s) {
if (isSPACE(*s)) {
}
}
+#ifndef NO_PERL_INTERNAL_RAND_SEED
+ /* If we're not set[ug]id, we might have honored
+ PERL_INTERNAL_RAND_SEED in perl_construct().
+ At this point command-line options have been parsed, so if
+ we're now tainting and not set[ug]id re-seed.
+ This could possibly be wasteful if PERL_INTERNAL_RAND_SEED is invalid,
+ but avoids duplicating the logic from perl_construct().
+ */
+ if (TAINT_get &&
+ PerlProc_getuid() == PerlProc_geteuid() &&
+ PerlProc_getgid() == PerlProc_getegid()) {
+ Perl_drand48_init_r(&PL_internal_random_state, seed());
+ }
+#endif
+
/* Set $^X early so that it can be used for relocatable paths in @INC */
/* and for SITELIB_EXP in USE_SITECUSTOMIZE */
assert (!TAINT_get);
/*
=for apidoc perl_run
-Tells a Perl interpreter to run. See L<perlembed>.
+Tells a Perl interpreter to run its main program. See L<perlembed>
+for a tutorial.
+
+C<my_perl> points to the Perl interpreter. It must have been previously
+created through the use of L</perl_alloc> and L</perl_construct>, and
+initialised through L</perl_parse>. This function should not be called
+if L</perl_parse> returned a non-zero value, indicating a failure in
+initialisation or compilation.
+
+This function executes code in C<INIT> blocks, and then executes the
+main program. The code to be executed is that established by the prior
+call to L</perl_parse>. If the interpreter's C<PL_exit_flags> word
+does not have the C<PERL_EXIT_DESTRUCT_END> flag set, then this function
+will also execute code in C<END> blocks. If it is desired to make any
+further use of the interpreter after calling this function, then C<END>
+blocks should be postponed to L</perl_destruct> time by setting that flag.
+
+Returns an integer of slightly tricky interpretation. The correct use
+of the return value is as a truth value indicating whether the program
+terminated non-locally. If zero is returned, this indicates that
+the program ran to completion, and it is safe to make other use of the
+interpreter (provided that the C<PERL_EXIT_DESTRUCT_END> flag was set as
+described above). If a non-zero value is returned, this indicates that
+the interpreter wants to terminate early. The interpreter should not be
+just abandoned because of this desire to terminate; the caller should
+proceed to shut the interpreter down cleanly with L</perl_destruct>
+and free it with L</perl_free>.
+
+For historical reasons, the non-zero return value also attempts to
+be a suitable value to pass to the C library function C<exit> (or to
+return from C<main>), to serve as an exit code indicating the nature of
+the way the program terminated. However, this isn't portable, due to
+differing exit code conventions. An attempt is made to return an exit
+code of the type required by the host operating system, but because
+it is constrained to be non-zero, it is not necessarily possible to
+indicate every type of exit. It is only reliable on Unix, where a zero
+exit code can be augmented with a set bit that will be ignored. In any
+case, this function is not the correct place to acquire an exit code:
+one should get that from L</perl_destruct>.
=cut
*/
/*
=head1 SV Manipulation Functions
-=for apidoc p||get_sv
+=for apidoc get_sv
Returns the SV of the specified Perl scalar. C<flags> are passed to
C<gv_fetchpv>. If C<GV_ADD> is set and the
/*
=head1 Array Manipulation Functions
-=for apidoc p||get_av
+=for apidoc get_av
Returns the AV of the specified Perl global or package array with the given
name (so it won't work on lexical variables). C<flags> are passed
/*
=head1 Hash Manipulation Functions
-=for apidoc p||get_hv
+=for apidoc get_hv
Returns the HV of the specified Perl hash. C<flags> are passed to
C<gv_fetchpv>. If C<GV_ADD> is set and the
/*
=head1 CV Manipulation Functions
-=for apidoc p||get_cvn_flags
+=for apidoc get_cvn_flags
Returns the CV of the specified Perl subroutine. C<flags> are passed to
C<gv_fetchpvn_flags>. If C<GV_ADD> is set and the Perl subroutine does not
C<sub name;>). If C<GV_ADD> is not set and the subroutine does not exist
then NULL is returned.
-=for apidoc p||get_cv
+=for apidoc get_cv
Uses C<strlen> to get the length of C<name>, then calls C<get_cvn_flags>.
PERL_ARGS_ASSERT_GET_CVN_FLAGS;
+ if (gv && UNLIKELY(SvROK(gv)) && SvTYPE(SvRV((SV *)gv)) == SVt_PVCV)
+ return (CV*)SvRV((SV *)gv);
+
/* XXX this is probably not what they think they're getting.
* It has the same effect as "sub name;", i.e. just a forward
* declaration! */
=head1 Callback Functions
-=for apidoc p||call_argv
+=for apidoc call_argv
Performs a callback to the specified named and package-scoped Perl subroutine
with C<argv> (a C<NULL>-terminated array of strings) as arguments. See
}
/*
-=for apidoc p||call_pv
+=for apidoc call_pv
Performs a callback to the specified Perl sub. See L<perlcall>.
}
/*
-=for apidoc p||call_method
+=for apidoc call_method
Performs a callback to the specified Perl method. The blessed object must
be on the stack. See L<perlcall>.
/* May be called with any of a CV, a GV, or an SV containing the name. */
/*
-=for apidoc p||call_sv
+=for apidoc call_sv
Performs a callback to the Perl sub specified by the SV.
See L<perlcall>.
+=for apidoc Amnh||G_METHOD
+=for apidoc Amnh||G_METHOD_NAMED
+
=cut
*/
I32
-Perl_call_sv(pTHX_ SV *sv, VOL I32 flags)
+Perl_call_sv(pTHX_ SV *sv, volatile I32 flags)
/* See G_* flags in cop.h */
{
dVAR;
LOGOP myop; /* fake syntax tree node */
METHOP method_op;
I32 oldmark;
- VOL I32 retval = 0;
+ volatile I32 retval = 0;
bool oldcatch = CATCH_GET;
int ret;
OP* const oldop = PL_op;
/* Eval a string. The G_EVAL flag is always assumed. */
/*
-=for apidoc p||eval_sv
+=for apidoc eval_sv
Tells Perl to C<eval> the string in the SV. It supports the same flags
as C<call_sv>, with the obvious exception of C<G_EVAL>. See L<perlcall>.
+The C<G_RETHROW> flag can be used if you only need eval_sv() to
+execute code specified by a string, but not catch any errors.
+
+=for apidoc Amnh||G_RETHROW
=cut
*/
{
dVAR;
UNOP myop; /* fake syntax tree node */
- VOL I32 oldmark;
- VOL I32 retval = 0;
+ volatile I32 oldmark;
+ volatile I32 retval = 0;
int ret;
OP* const oldop = PL_op;
dJMPENV;
goto redo_body;
}
fail:
+ if (flags & G_RETHROW) {
+ JMPENV_POP;
+ croak_sv(ERRSV);
+ }
+
PL_stack_sp = PL_stack_base + oldmark;
if ((flags & G_WANT) == G_ARRAY)
retval = 0;
}
/*
-=for apidoc p||eval_pv
+=for apidoc eval_pv
Tells Perl to C<eval> the given string in scalar context and return an SV* result.
PERL_ARGS_ASSERT_EVAL_PV;
- eval_sv(sv, G_SCALAR);
- SvREFCNT_dec(sv);
+ if (croak_on_error) {
+ sv_2mortal(sv);
+ eval_sv(sv, G_SCALAR | G_RETHROW);
+ }
+ else {
+ eval_sv(sv, G_SCALAR);
+ SvREFCNT_dec(sv);
+ }
{
dSP;
PUTBACK;
}
- /* just check empty string or undef? */
- if (croak_on_error) {
- SV * const errsv = ERRSV;
- if(SvTRUE_NN(errsv))
- /* replace with croak_sv? */
- Perl_croak_nocontext("%s", SvPV_nolen_const(errsv));
- }
-
return sv;
}
/*
=head1 Embedding Functions
-=for apidoc p||require_pv
+=for apidoc require_pv
Tells Perl to C<require> the file named by the string argument. It is
analogous to the Perl code C<eval "require '$file'">. It's even
" B dump suBroutine definitions, including special Blocks like BEGIN\n",
" L trace some locale setting information--for Perl core development\n",
" i trace PerlIO layer processing\n",
+ " y trace y///, tr/// compilation and execution\n",
NULL
};
UV uv = 0;
if (isALPHA(**s)) {
/* if adding extra options, remember to update DEBUG_MASK */
- static const char debopts[] = "psltocPmfrxuUHXDSTRJvCAqMBLi";
+ static const char debopts[] = "psltocPmfrxuUHXDSTRJvCAqMBLiy";
for (; isWORDCHAR(**s); (*s)++) {
const char * const d = strchr(debopts,**s);
}
}
else if (isDIGIT(**s)) {
- const char* e;
+ const char* e = *s + strlen(*s);
if (grok_atoUV(*s, &uv, &e))
*s = e;
for (; isWORDCHAR(**s); (*s)++) ;
case 'i':
Safefree(PL_inplace);
-#if defined(__CYGWIN__) /* do backup extension automagically */
- if (*(s+1) == '\0') {
- PL_inplace = savepvs(".bak");
- return s+1;
- }
-#endif /* __CYGWIN__ */
{
const char * const start = ++s;
while (*s && !isSPACE(*s))
return s;
case 'W':
PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
- if (!specialWARN(PL_compiling.cop_warnings))
- PerlMemShared_free(PL_compiling.cop_warnings);
- PL_compiling.cop_warnings = pWARN_ALL ;
+ free_and_set_cop_warnings(&PL_compiling, pWARN_ALL);
s++;
return s;
case 'X':
PL_dowarn = G_WARN_ALL_OFF;
- if (!specialWARN(PL_compiling.cop_warnings))
- PerlMemShared_free(PL_compiling.cop_warnings);
- PL_compiling.cop_warnings = pWARN_NONE ;
+ free_and_set_cop_warnings(&PL_compiling, pWARN_NONE);
s++;
return s;
case '*':
#endif
PerlIO_printf(PIO_stdout,
- "\n\nCopyright 1987-2017, Larry Wall\n");
+ "\n\nCopyright 1987-2020, Larry Wall\n");
#ifdef MSDOS
PerlIO_printf(PIO_stdout,
"\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
PerlIO_printf(PIO_stdout,
"BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n");
#endif
-#ifdef UNDER_CE
- PerlIO_printf(PIO_stdout,
- "WINCE port by Rainer Keuchel, 2001-2002\n"
- "Built on " __DATE__ " " __TIME__ "\n\n");
- wce_hitreturn();
-#endif
#ifdef __SYMBIAN32__
PerlIO_printf(PIO_stdout,
"Symbian port by Nokia, 2004-2005\n");
S_init_main_stash(pTHX)
{
GV *gv;
+ HV *hv = newHV();
- PL_curstash = PL_defstash = (HV *)SvREFCNT_inc_simple_NN(newHV());
+ PL_curstash = PL_defstash = (HV *)SvREFCNT_inc_simple_NN(hv);
/* We know that the string "main" will be in the global shared string
table, so it's a small saving to use it rather than allocate another
8 bytes. */
#endif
sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
CLEAR_ERRSV();
- SET_CURSTASH(PL_defstash);
CopSTASH_set(&PL_compiling, PL_defstash);
PL_debstash = GvHV(gv_fetchpvs("DB::", GV_ADDMULTI, SVt_PVHV));
PL_globalstash = GvHV(gv_fetchpvs("CORE::GLOBAL::", GV_ADDMULTI,
UV uv;
/* if find_script() returns, it returns a malloc()-ed value */
scriptname = PL_origfilename = find_script(scriptname, dosearch, NULL, 1);
+ s = scriptname + strlen(scriptname);
- if (strEQs(scriptname, "/dev/fd/")
+ if (strBEGINs(scriptname, "/dev/fd/")
&& isDIGIT(scriptname[8])
&& grok_atoUV(scriptname + 8, &uv, &s)
&& uv <= PERL_INT_MAX
};
const char * const err = "Failed to create a fake bit bucket";
if (strEQ(scriptname, BIT_BUCKET)) {
-#ifdef HAS_MKSTEMP /* Hopefully mkstemp() is safe here. */
- int old_umask = umask(0177);
- int tmpfd = mkstemp(tmpname);
- umask(old_umask);
+ int tmpfd = Perl_my_mkstemp_cloexec(tmpname);
if (tmpfd > -1) {
scriptname = tmpname;
close(tmpfd);
} else
Perl_croak(aTHX_ err);
-#else
-# ifdef HAS_MKTEMP
- scriptname = mktemp(tmpname);
- if (!scriptname)
- Perl_croak(aTHX_ err);
-# endif
-#endif
}
#endif
rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
#ifdef FAKE_BIT_BUCKET
- if (memEQ(scriptname, FAKE_BIT_BUCKET_PREFIX,
- sizeof(FAKE_BIT_BUCKET_PREFIX) - 1)
- && strlen(scriptname) == sizeof(tmpname) - 1) {
+ if ( strBEGINs(scriptname, FAKE_BIT_BUCKET_PREFIX)
+ && strlen(scriptname) == sizeof(tmpname) - 1)
+ {
unlink(scriptname);
}
scriptname = BIT_BUCKET;
CopFILE(PL_curcop), Strerror(errno));
}
fd = PerlIO_fileno(rsfp);
-#if defined(HAS_FCNTL) && defined(F_SETFD) && defined(FD_CLOEXEC)
- if (fd >= 0) {
- /* ensure close-on-exec */
- if (fcntl(fd, F_SETFD, FD_CLOEXEC) < 0) {
- Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n",
- CopFILE(PL_curcop), Strerror(errno));
- }
- }
-#endif
if (fd < 0 ||
(PerlLIO_fstat(fd, &tmpstatbuf) >= 0
return rsfp;
}
-/* Mention
+/* In the days of suidperl, we refused to execute a setuid script stored on
+ * a filesystem mounted nosuid and/or noexec. This meant that we probed for the
+ * existence of the appropriate filesystem-statting function, and behaved
+ * accordingly. But even though suidperl is long gone, we must still include
+ * those probes for the benefit of modules like Filesys::Df, which expect the
+ * results of those probes to be stored in %Config; see RT#126368. So mention
+ * the relevant cpp symbols here, to ensure that metaconfig will include their
+ * probes in the generated Configure:
+ *
* I_SYSSTATVFS HAS_FSTATVFS
* I_SYSMOUNT
* I_STATFS HAS_FSTATFS HAS_GETFSSTAT
* I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT
- * here so that metaconfig picks them up. */
+ */
#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
if (*s++ == '-') {
while (isDIGIT(s2[-1]) || s2[-1] == '-' || s2[-1] == '.'
|| s2[-1] == '_') s2--;
- if (strEQs(s2-4,"perl"))
+ if (strBEGINs(s2-4,"perl"))
while ((s = moreswitches(s)))
;
}
/* miniperl gets just -I..., the split of $ENV{PERL5LIB}, and "." in @INC
(and not the architecture specific directories from $ENV{PERL5LIB}) */
+#include "perl_inc_macro.h"
/* Use the ~-expanded versions of APPLLIB (undocumented),
SITEARCH, SITELIB, VENDORARCH, VENDORLIB, ARCHLIB and PRIVLIB
*/
-#ifdef APPLLIB_EXP
- S_incpush_use_sep(aTHX_ STR_WITH_LEN(APPLLIB_EXP),
- INCPUSH_ADD_SUB_DIRS|INCPUSH_CAN_RELOCATE);
-#endif
-
-#ifdef SITEARCH_EXP
- /* sitearch is always relative to sitelib on Windows for
- * DLL-based path intuition to work correctly */
-# if !defined(WIN32)
- S_incpush_use_sep(aTHX_ STR_WITH_LEN(SITEARCH_EXP),
- INCPUSH_CAN_RELOCATE);
-# endif
-#endif
-
-#ifdef SITELIB_EXP
-# if defined(WIN32)
- /* this picks up sitearch as well */
- s = PerlEnv_sitelib_path(PERL_FS_VERSION, &len);
- if (s)
- incpush_use_sep(s, len, INCPUSH_ADD_SUB_DIRS|INCPUSH_CAN_RELOCATE);
-# else
- S_incpush_use_sep(aTHX_ STR_WITH_LEN(SITELIB_EXP), INCPUSH_CAN_RELOCATE);
-# endif
-#endif
-
-#ifdef PERL_VENDORARCH_EXP
- /* vendorarch is always relative to vendorlib on Windows for
- * DLL-based path intuition to work correctly */
-# if !defined(WIN32)
- S_incpush_use_sep(aTHX_ STR_WITH_LEN(PERL_VENDORARCH_EXP),
- INCPUSH_CAN_RELOCATE);
-# endif
-#endif
+ INCPUSH_APPLLIB_EXP
+ INCPUSH_SITEARCH_EXP
+ INCPUSH_SITELIB_EXP
+ INCPUSH_PERL_VENDORARCH_EXP
+ INCPUSH_PERL_VENDORLIB_EXP
+ INCPUSH_ARCHLIB_EXP
+ INCPUSH_PRIVLIB_EXP
+ INCPUSH_PERL_OTHERLIBDIRS
+ INCPUSH_PERL5LIB
+ INCPUSH_APPLLIB_OLD_EXP
+ INCPUSH_SITELIB_STEM
+ INCPUSH_PERL_VENDORLIB_STEM
+ INCPUSH_PERL_OTHERLIBDIRS_ARCHONLY
-#ifdef PERL_VENDORLIB_EXP
-# if defined(WIN32)
- /* this picks up vendorarch as well */
- s = PerlEnv_vendorlib_path(PERL_FS_VERSION, &len);
- if (s)
- incpush_use_sep(s, len, INCPUSH_ADD_SUB_DIRS|INCPUSH_CAN_RELOCATE);
-# else
- S_incpush_use_sep(aTHX_ STR_WITH_LEN(PERL_VENDORLIB_EXP),
- INCPUSH_CAN_RELOCATE);
-# endif
-#endif
-
-#ifdef ARCHLIB_EXP
- S_incpush_use_sep(aTHX_ STR_WITH_LEN(ARCHLIB_EXP), INCPUSH_CAN_RELOCATE);
-#endif
-
-#ifndef PRIVLIB_EXP
-# define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
-#endif
-
-#if defined(WIN32)
- s = PerlEnv_lib_path(PERL_FS_VERSION, &len);
- if (s)
- incpush_use_sep(s, len, INCPUSH_ADD_SUB_DIRS|INCPUSH_CAN_RELOCATE);
-#else
-# ifdef NETWARE
- S_incpush_use_sep(aTHX_ PRIVLIB_EXP, 0, INCPUSH_CAN_RELOCATE);
-# else
- S_incpush_use_sep(aTHX_ STR_WITH_LEN(PRIVLIB_EXP), INCPUSH_CAN_RELOCATE);
-# endif
-#endif
-
-#ifdef PERL_OTHERLIBDIRS
- S_incpush_use_sep(aTHX_ STR_WITH_LEN(PERL_OTHERLIBDIRS),
- INCPUSH_ADD_VERSIONED_SUB_DIRS|INCPUSH_NOT_BASEDIR
- |INCPUSH_CAN_RELOCATE);
-#endif
-
- if (!TAINTING_get) {
-#ifndef VMS
-/*
- * It isn't possible to delete an environment variable with
- * PERL_USE_SAFE_PUTENV set unless unsetenv() is also available, so in that
- * case we treat PERL5LIB as undefined if it has a zero-length value.
- */
-#if defined(PERL_USE_SAFE_PUTENV) && ! defined(HAS_UNSETENV)
- if (perl5lib && *perl5lib != '\0')
-#else
- if (perl5lib)
-#endif
- incpush_use_sep(perl5lib, 0,
- INCPUSH_ADD_OLD_VERS|INCPUSH_NOT_BASEDIR);
-#else /* VMS */
- /* Treat PERL5?LIB as a possible search list logical name -- the
- * "natural" VMS idiom for a Unix path string. We allow each
- * element to be a set of |-separated directories for compatibility.
- */
- char buf[256];
- int idx = 0;
- if (vmstrnenv("PERL5LIB",buf,0,NULL,0))
- do {
- incpush_use_sep(buf, 0,
- INCPUSH_ADD_OLD_VERS|INCPUSH_NOT_BASEDIR);
- } while (vmstrnenv("PERL5LIB",buf,++idx,NULL,0));
-#endif /* VMS */
- }
-
-/* Use the ~-expanded versions of APPLLIB (undocumented),
- SITELIB and VENDORLIB for older versions
-*/
-#ifdef APPLLIB_EXP
- S_incpush_use_sep(aTHX_ STR_WITH_LEN(APPLLIB_EXP), INCPUSH_ADD_OLD_VERS
- |INCPUSH_NOT_BASEDIR|INCPUSH_CAN_RELOCATE);
-#endif
-
-#if defined(SITELIB_STEM) && defined(PERL_INC_VERSION_LIST)
- /* Search for version-specific dirs below here */
- S_incpush_use_sep(aTHX_ STR_WITH_LEN(SITELIB_STEM),
- INCPUSH_ADD_OLD_VERS|INCPUSH_CAN_RELOCATE);
-#endif
-
-
-#if defined(PERL_VENDORLIB_STEM) && defined(PERL_INC_VERSION_LIST)
- /* Search for version-specific dirs below here */
- S_incpush_use_sep(aTHX_ STR_WITH_LEN(PERL_VENDORLIB_STEM),
- INCPUSH_ADD_OLD_VERS|INCPUSH_CAN_RELOCATE);
-#endif
-
-#ifdef PERL_OTHERLIBDIRS
- S_incpush_use_sep(aTHX_ STR_WITH_LEN(PERL_OTHERLIBDIRS),
- INCPUSH_ADD_OLD_VERS|INCPUSH_ADD_ARCHONLY_SUB_DIRS
- |INCPUSH_CAN_RELOCATE);
-#endif
#endif /* !PERL_IS_MINIPERL */
if (!TAINTING_get) {
#if defined(DOSISH) || defined(__SYMBIAN32__)
# define PERLLIB_SEP ';'
-#else
-# if defined(__VMS)
+#elif defined(__VMS)
# define PERLLIB_SEP PL_perllib_sep
-# else
+#else
# define PERLLIB_SEP ':'
-# endif
#endif
#ifndef PERLLIB_MANGLE
# define PERLLIB_MANGLE(s,n) (s)
*/
const char *libpath = SvPVX(libdir);
STRLEN libpath_len = SvCUR(libdir);
- if (libpath_len >= 4 && memEQ (libpath, ".../", 4)) {
+ if (memBEGINs(libpath, libpath_len, ".../")) {
/* Game on! */
SV * const caret_X = get_sv("\030", 0);
/* Going to use the SV just as a scratch buffer holding a C
libpath = SvPVX(libdir);
libpath_len = SvCUR(libdir);
- /* This would work more efficiently with memrchr, but as it's
- only a GNU extension we'd need to probe for it and
- implement our own. Not hard, but maybe not worth it? */
-
prefix = SvPVX(prefix_sv);
- lastslash = strrchr(prefix, '/');
+ lastslash = (char *) my_memrchr(prefix, '/',
+ SvEND(prefix_sv) - prefix);
/* First time in with the *lastslash = '\0' we just wipe off
the trailing /perl from (say) /usr/foo/bin/perl
if (lastslash) {
SV *tempsv;
while ((*lastslash = '\0'), /* Do that, come what may. */
- (libpath_len >= 3 && _memEQs(libpath, "../")
- && (lastslash = strrchr(prefix, '/')))) {
+ ( memBEGINs(libpath, libpath_len, "../")
+ && (lastslash =
+ (char *) my_memrchr(prefix, '/',
+ SvEND(prefix_sv) - prefix))))
+ {
if (lastslash[1] == '\0'
|| (lastslash[1] == '.'
&& (lastslash[2] == '/' /* ends "/." */
Perl_call_list(pTHX_ I32 oldscope, AV *paramList)
{
SV *atsv;
- VOL const line_t oldline = PL_curcop ? CopLINE(PL_curcop) : 0;
+ volatile const line_t oldline = PL_curcop ? CopLINE(PL_curcop) : 0;
CV *cv;
STRLEN len;
int ret;
}
}
+/*
+=for apidoc my_exit
+
+A wrapper for the C library L<exit(3)>, honoring what L<perlapi/PL_exit_flags>
+say to do.
+
+=cut
+*/
+
void
Perl_my_exit(pTHX_ U32 status)
{
* success/warning codes to fatal with out changing
* the POSIX status code. The severity makes VMS native
* status handling work, while UNIX mode programs use the
- * the POSIX exit codes.
+ * POSIX exit codes.
*/
if ((STATUS_NATIVE & (STS$K_SEVERE|STS$K_ERROR)) == 0) {
STATUS_NATIVE &= STS$M_COND_ID;
#else
int exitstatus;
- if (errno & 255)
- STATUS_UNIX_SET(errno);
+ int eno = errno;
+ if (eno & 255)
+ STATUS_UNIX_SET(eno);
else {
exitstatus = STATUS_UNIX >> 8;
if (exitstatus & 255)
read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen)
{
const char * const p = SvPVX_const(PL_e_script);
- const char *nl = strchr(p, '\n');
+ const char * const e = SvEND(PL_e_script);
+ const char *nl = (char *) memchr(p, '\n', e - p);
PERL_UNUSED_ARG(idx);
PERL_UNUSED_ARG(maxlen);
- nl = (nl) ? nl+1 : SvEND(PL_e_script);
+ nl = (nl) ? nl+1 : e;
if (nl-p == 0) {
filter_del(read_e_script);
return 0;
https://perl5.git.perl.org / perl5.git / blobdiff