/* perl.c
*
* Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
- * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 by Larry Wall
- * and others
+ * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
+ * 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.
/*
* A ship then new they built for him
* of mithril and of elven-glass
- * --from Bilbo's song of Eärendil
+ * --from Bilbo's song of Eärendil
*
* [p.236 of _The Lord of the Rings_, II/i: "Many Meetings"]
*/
* function of the interpreter; that can be found in perlmain.c
*/
+#ifdef PERL_IS_MINIPERL
+# define USE_SITECUSTOMIZE
+#endif
+
#include "EXTERN.h"
#define PERL_IN_PERL_C
#include "perl.h"
#include "nwutil.h"
#endif
-/* XXX If this causes problems, set i_unistd=undef in the hint file. */
-#ifdef I_UNISTD
-#include <unistd.h>
+#ifdef USE_KERN_PROC_PATHNAME
+# include <sys/sysctl.h>
+#endif
+
+#ifdef USE_NSGETEXECUTABLEPATH
+# include <mach-o/dyld.h>
#endif
#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
-# ifdef I_SYS_WAIT
-# include <sys/wait.h>
-# endif
# ifdef I_SYSUIO
# include <sys/uio.h>
# endif
JMPENV_PUSH(x);
PERL_UNUSED_VAR(x);
- if (PL_endav && !PL_minus_c)
+ if (PL_endav && !PL_minus_c) {
+ PERL_SET_PHASE(PERL_PHASE_END);
call_list(PL_scopestack_ix, PL_endav);
+ }
JMPENV_POP;
}
LEAVE;
* destruct_level > 0 */
SvREFCNT_dec(PL_main_cv);
PL_main_cv = NULL;
- PL_dirty = TRUE;
+ PERL_SET_PHASE(PERL_PHASE_DESTRUCT);
/* Tell PerlIO we are about to tear things apart in case
we have layers which are using resources that should
/* defgv, aka *_ should be taken care of elsewhere */
- /* clean up after study() */
- SvREFCNT_dec(PL_lastscream);
- PL_lastscream = NULL;
- Safefree(PL_screamfirst);
- PL_screamfirst = 0;
- Safefree(PL_screamnext);
- PL_screamnext = 0;
-
/* float buffer */
Safefree(PL_efloatbuf);
PL_efloatbuf = NULL;
/* clear utf8 character classes */
SvREFCNT_dec(PL_utf8_alnum);
- SvREFCNT_dec(PL_utf8_ascii);
SvREFCNT_dec(PL_utf8_alpha);
SvREFCNT_dec(PL_utf8_space);
- SvREFCNT_dec(PL_utf8_cntrl);
SvREFCNT_dec(PL_utf8_graph);
SvREFCNT_dec(PL_utf8_digit);
SvREFCNT_dec(PL_utf8_upper);
SvREFCNT_dec(PL_utf8_tofold);
SvREFCNT_dec(PL_utf8_idstart);
SvREFCNT_dec(PL_utf8_idcont);
+ SvREFCNT_dec(PL_utf8_foldclosures);
PL_utf8_alnum = NULL;
- PL_utf8_ascii = NULL;
PL_utf8_alpha = NULL;
PL_utf8_space = NULL;
- PL_utf8_cntrl = NULL;
PL_utf8_graph = NULL;
PL_utf8_digit = NULL;
PL_utf8_upper = NULL;
PL_utf8_tofold = NULL;
PL_utf8_idstart = NULL;
PL_utf8_idcont = NULL;
+ PL_utf8_foldclosures = NULL;
if (!specialWARN(PL_compiling.cop_warnings))
PerlMemShared_free(PL_compiling.cop_warnings);
for (sva = PL_sv_arenaroot; sva; sva = MUTABLE_SV(SvANY(sva))) {
svend = &sva[SvREFCNT(sva)];
for (sv = sva + 1; sv < svend; ++sv) {
- if (SvTYPE(sv) != SVTYPEMASK) {
+ if (SvTYPE(sv) != (svtype)SVTYPEMASK) {
PerlIO_printf(Perl_debug_log, "leaked: sv=0x%p"
" flags=0x%"UVxf
" refcnt=%"UVuf pTHX__FORMAT "\n"
++PL_exitlistlen;
}
-#ifdef HAS_PROCSELFEXE
-/* This is a function so that we don't hold on to MAXPATHLEN
- bytes of stack longer than necessary
- */
-STATIC void
-S_procself_val(pTHX_ SV *sv, const char *arg0)
-{
- char buf[MAXPATHLEN];
- int len = readlink(PROCSELFEXE_PATH, buf, sizeof(buf) - 1);
-
- /* On Playstation2 Linux V1.0 (kernel 2.2.1) readlink(/proc/self/exe)
- includes a spurious NUL which will cause $^X to fail in system
- or backticks (this will prevent extensions from being built and
- many tests from working). readlink is not meant to add a NUL.
- Normal readlink works fine.
- */
- if (len > 0 && buf[len-1] == '\0') {
- len--;
- }
-
- /* FreeBSD's implementation is acknowledged to be imperfect, sometimes
- returning the text "unknown" from the readlink rather than the path
- to the executable (or returning an error from the readlink). Any valid
- path has a '/' in it somewhere, so use that to validate the result.
- See http://www.freebsd.org/cgi/query-pr.cgi?pr=35703
- */
- if (len > 0 && memchr(buf, '/', len)) {
- sv_setpvn(sv,buf,len);
- }
- else {
- sv_setpv(sv,arg0);
- }
-}
-#endif /* HAS_PROCSELFEXE */
-
STATIC void
S_set_caret_X(pTHX) {
dVAR;
GV* tmpgv = gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, SVt_PV); /* $^X */
if (tmpgv) {
-#ifdef HAS_PROCSELFEXE
- S_procself_val(aTHX_ GvSV(tmpgv), PL_origargv[0]);
-#else
-#ifdef OS2
- sv_setpv(GvSVn(tmpgv), os2_execname(aTHX));
+ SV *const caret_x = GvSV(tmpgv);
+#if defined(OS2)
+ sv_setpv(caret_x, os2_execname(aTHX));
#else
- sv_setpv(GvSVn(tmpgv),PL_origargv[0]);
-#endif
+# ifdef USE_KERN_PROC_PATHNAME
+ size_t size = 0;
+ int mib[4];
+ mib[0] = CTL_KERN;
+ mib[1] = KERN_PROC;
+ mib[2] = KERN_PROC_PATHNAME;
+ mib[3] = -1;
+
+ if (sysctl(mib, 4, NULL, &size, NULL, 0) == 0
+ && size > 0 && size < MAXPATHLEN * MAXPATHLEN) {
+ sv_grow(caret_x, size);
+
+ if (sysctl(mib, 4, SvPVX(caret_x), &size, NULL, 0) == 0
+ && size > 2) {
+ SvPOK_only(caret_x);
+ SvCUR_set(caret_x, size - 1);
+ SvTAINT(caret_x);
+ return;
+ }
+ }
+# elif defined(USE_NSGETEXECUTABLEPATH)
+ char buf[1];
+ uint32_t size = sizeof(buf);
+
+ _NSGetExecutablePath(buf, &size);
+ if (size < MAXPATHLEN * MAXPATHLEN) {
+ sv_grow(caret_x, size);
+ if (_NSGetExecutablePath(SvPVX(caret_x), &size) == 0) {
+ char *const tidied = realpath(SvPVX(caret_x), NULL);
+ if (tidied) {
+ sv_setpv(caret_x, tidied);
+ free(tidied);
+ } else {
+ SvPOK_only(caret_x);
+ SvCUR_set(caret_x, size);
+ }
+ return;
+ }
+ }
+# elif defined(HAS_PROCSELFEXE)
+ char buf[MAXPATHLEN];
+ int len = readlink(PROCSELFEXE_PATH, buf, sizeof(buf) - 1);
+
+ /* On Playstation2 Linux V1.0 (kernel 2.2.1) readlink(/proc/self/exe)
+ includes a spurious NUL which will cause $^X to fail in system
+ or backticks (this will prevent extensions from being built and
+ many tests from working). readlink is not meant to add a NUL.
+ Normal readlink works fine.
+ */
+ if (len > 0 && buf[len-1] == '\0') {
+ len--;
+ }
+
+ /* FreeBSD's implementation is acknowledged to be imperfect, sometimes
+ returning the text "unknown" from the readlink rather than the path
+ to the executable (or returning an error from the readlink). Any
+ valid path has a '/' in it somewhere, so use that to validate the
+ result. See http://www.freebsd.org/cgi/query-pr.cgi?pr=35703
+ */
+ if (len > 0 && memchr(buf, '/', len)) {
+ sv_setpvn(caret_x, buf, len);
+ return;
+ }
+# endif
+ /* Fallback to this: */
+ sv_setpv(caret_x, PL_origargv[0]);
#endif
}
}
#if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT)
/* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0
* This MUST be done before any hash stores or fetches take place.
- * If you set PL_rehash_seed (and assumedly also PL_rehash_seed_set)
+ * If you set PL_rehash_seed (and presumably also PL_rehash_seed_set)
* yourself, it is your responsibility to provide a good random seed!
* You can also define PERL_HASH_SEED in compile time, see hv.h. */
if (!PL_rehash_seed_set)
switch (ret) {
case 0:
parse_body(env,xsinit);
- if (PL_unitcheckav)
+ if (PL_unitcheckav) {
call_list(oldscope, PL_unitcheckav);
- if (PL_checkav)
+ }
+ if (PL_checkav) {
+ PERL_SET_PHASE(PERL_PHASE_CHECK);
call_list(oldscope, PL_checkav);
+ }
ret = 0;
break;
case 1:
LEAVE;
FREETMPS;
PL_curstash = PL_defstash;
- if (PL_unitcheckav)
+ if (PL_unitcheckav) {
call_list(oldscope, PL_unitcheckav);
- if (PL_checkav)
+ }
+ if (PL_checkav) {
+ PERL_SET_PHASE(PERL_PHASE_CHECK);
call_list(oldscope, PL_checkav);
+ }
ret = STATUS_EXIT;
break;
case 3:
# ifdef DEBUGGING
" DEBUGGING"
# endif
+# ifdef HOMEGROWN_POSIX_SIGNALS
+ " HOMEGROWN_POSIX_SIGNALS"
+# endif
# ifdef NO_MATHOMS
" NO_MATHOMS"
# endif
# ifdef PERL_MEM_LOG_NOIMPL
" PERL_MEM_LOG_NOIMPL"
# endif
+# ifdef PERL_PRESERVE_IVUV
+ " PERL_PRESERVE_IVUV"
+# endif
# ifdef PERL_USE_DEVEL
" PERL_USE_DEVEL"
# endif
# ifdef PERL_USE_SAFE_PUTENV
" PERL_USE_SAFE_PUTENV"
# endif
+# ifdef UNLINK_ALL_VERSIONS
+ " UNLINK_ALL_VERSIONS"
+# endif
# ifdef USE_ATTRIBUTES_FOR_PERLIO
" USE_ATTRIBUTES_FOR_PERLIO"
# endif
# ifdef USE_FAST_STDIO
" USE_FAST_STDIO"
# endif
+# ifdef USE_LOCALE
+ " USE_LOCALE"
+# endif
+# ifdef USE_LOCALE_CTYPE
+ " USE_LOCALE_CTYPE"
+# endif
# ifdef USE_PERL_ATOF
" USE_PERL_ATOF"
# endif
SV *linestr_sv = newSV_type(SVt_PVIV);
bool add_read_e_script = FALSE;
+ PERL_SET_PHASE(PERL_PHASE_START);
+
SvGROW(linestr_sv, 80);
sv_setpvs(linestr_sv,"");
}
}
-#if defined(USE_SITECUSTOMIZE) && !defined(PERL_IS_MINIPERL)
+#if defined(USE_SITECUSTOMIZE)
if (!minus_f) {
- /* SITELIB_EXP is a function call on Win32.
- The games with local $! are to avoid setting errno if there is no
+ /* The games with local $! are to avoid setting errno if there is no
sitecustomize script. */
+# ifdef PERL_IS_MINIPERL
+ AV *const inc = GvAV(PL_incgv);
+ SV **const inc0 = inc ? av_fetch(inc, 0, FALSE) : NULL;
+
+ if (inc0) {
+ (void)Perl_av_create_and_unshift_one(aTHX_ &PL_preambleav,
+ Perl_newSVpvf(aTHX_
+ "BEGIN { do {local $!; -f '%"SVf"/buildcustomize.pl'} && do '%"SVf"/buildcustomize.pl' }", *inc0, *inc0));
+ }
+# else
+ /* SITELIB_EXP is a function call on Win32. */
const char *const sitelib = SITELIB_EXP;
(void)Perl_av_create_and_unshift_one(aTHX_ &PL_preambleav,
Perl_newSVpvf(aTHX_
"BEGIN { do {local $!; -f '%s/sitecustomize.pl'} && do '%s/sitecustomize.pl' }", sitelib, sitelib));
+# endif
}
#endif
FREETMPS;
PL_curstash = PL_defstash;
if (!(PL_exit_flags & PERL_EXIT_DESTRUCT_END) &&
- PL_endav && !PL_minus_c)
+ PL_endav && !PL_minus_c) {
+ PERL_SET_PHASE(PERL_PHASE_END);
call_list(oldscope, PL_endav);
+ }
#ifdef MYMALLOC
if (PerlEnv_getenv("PERL_DEBUG_MSTATS"))
dump_mstats("after execution: ");
}
if (PERLDB_SINGLE && PL_DBsingle)
sv_setiv(PL_DBsingle, 1);
- if (PL_initav)
+ if (PL_initav) {
+ PERL_SET_PHASE(PERL_PHASE_INIT);
call_list(oldscope, PL_initav);
+ }
#ifdef PERL_DEBUG_READONLY_OPS
Perl_pending_Slabs_to_ro(aTHX);
#endif
/* do it */
+ PERL_SET_PHASE(PERL_PHASE_RUN);
+
if (PL_restartop) {
PL_restartjmpenv = NULL;
PL_op = PL_restartop;
=for apidoc p||get_av
-Returns the AV of the specified Perl array. C<flags> are passed to
-C<gv_fetchpv>. If C<GV_ADD> is set and the
+Returns the AV of the specified Perl global or package array with the given
+name (so it won't work on lexical variables). C<flags> are passed
+to C<gv_fetchpv>. If C<GV_ADD> is set and the
Perl variable does not exist then it will be created. If C<flags> is zero
and the variable does not exist then NULL is returned.
+Perl equivalent: C<@{"$name"}>.
+
=cut
*/
=for apidoc p||call_argv
-Performs a callback to the specified Perl sub. See L<perlcall>.
+Performs a callback to the specified named and package-scoped Perl subroutine
+with C<argv> (a NULL-terminated array of strings) as arguments. See L<perlcall>.
+
+Approximate Perl equivalent: C<&{"$sub_name"}(@$argv)>.
=cut
*/
/* The following permits -d:Mod to accepts arguments following an =
in the fashion that -MSome::Mod does. */
if (*s == ':' || *s == '=') {
- const char *start = ++s;
- const char *const end = s + strlen(s);
- SV * const sv = newSVpvs("use Devel::");
+ const char *start;
+ const char *end;
+ SV *sv;
+
+ if (*++s == '-') {
+ ++s;
+ sv = newSVpvs("no Devel::");
+ } else {
+ sv = newSVpvs("use Devel::");
+ }
+
+ start = s;
+ end = s + strlen(s);
- /* We now allow -d:Module=Foo,Bar */
+ /* We now allow -d:Module=Foo,Bar and -d:-Module */
while(isALNUM(*s) || *s==':') ++s;
if (*s != '=')
sv_catpvn(sv, start, end - start);
#endif
PerlIO_printf(PerlIO_stdout(),
- "\n\nCopyright 1987-2010, Larry Wall\n");
+ "\n\nCopyright 1987-2011, Larry Wall\n");
#ifdef MSDOS
PerlIO_printf(PerlIO_stdout(),
"\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
{
dVAR;
#ifdef MULTIPLICITY
-# define PERLVAR(var,type)
-# define PERLVARA(var,n,type)
+# define PERLVAR(prefix,var,type)
+# define PERLVARA(prefix,var,n,type)
# if defined(PERL_IMPLICIT_CONTEXT)
-# define PERLVARI(var,type,init) aTHX->var = init;
-# define PERLVARIC(var,type,init) aTHX->var = init;
+# define PERLVARI(prefix,var,type,init) aTHX->prefix##var = init;
+# define PERLVARIC(prefix,var,type,init) aTHX->prefix##var = init;
# else
-# define PERLVARI(var,type,init) PERL_GET_INTERP->var = init;
-# define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init;
+# define PERLVARI(prefix,var,type,init) PERL_GET_INTERP->var = init;
+# define PERLVARIC(prefix,var,type,init) PERL_GET_INTERP->var = init;
# endif
# include "intrpvar.h"
# undef PERLVAR
# undef PERLVARI
# undef PERLVARIC
#else
-# define PERLVAR(var,type)
-# define PERLVARA(var,n,type)
-# define PERLVARI(var,type,init) PL_##var = init;
-# define PERLVARIC(var,type,init) PL_##var = init;
+# define PERLVAR(prefix,var,type)
+# define PERLVARA(prefix,var,n,type)
+# define PERLVARI(prefix,var,type,init) PL_##var = init;
+# define PERLVARIC(prefix,var,type,init) PL_##var = init;
# include "intrpvar.h"
# undef PERLVAR
# undef PERLVARA
"leak" until global destruction. */
av_clear(args);
}
- AvREAL_off(PL_dbargs); /* XXX should be REIFY (see av.h) */
+ AvREIFY_only(PL_dbargs);
}
void
#endif /* !PERL_MICRO */
}
TAINT_NOT;
- if ((tmpgv = gv_fetchpvs("$", GV_ADD|GV_NOTQUAL, SVt_PV))) {
- SvREADONLY_off(GvSV(tmpgv));
- sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
- SvREADONLY_on(GvSV(tmpgv));
- }
#ifdef THREADS_HAVE_PIDS
PL_ppid = (IV)getppid();
#endif
# define PERLLIB_MANGLE(s,n) (s)
#endif
+#ifndef PERL_IS_MINIPERL
/* Push a directory onto @INC if it exists.
Generate a new SV if we do this, to save needing to copy the SV we push
onto @INC */
}
return dir;
}
+#endif
STATIC void
S_incpush(pTHX_ const char *const dir, STRLEN len, U32 flags)
{
dVAR;
+#ifndef PERL_IS_MINIPERL
const U8 using_sub_dirs
= (U8)flags & (INCPUSH_ADD_VERSIONED_SUB_DIRS
|INCPUSH_ADD_ARCHONLY_SUB_DIRS|INCPUSH_ADD_OLD_VERS);
#ifdef PERL_INC_VERSION_LIST
const U8 addoldvers = (U8)flags & INCPUSH_ADD_OLD_VERS;
#endif
+#endif
const U8 canrelocate = (U8)flags & INCPUSH_CAN_RELOCATE;
const U8 unshift = (U8)flags & INCPUSH_UNSHIFT;
const U8 push_basedir = (flags & INCPUSH_NOT_BASEDIR) ? 0 : 1;
pushing. Hence to make it work, need to push the architecture
(etc) libraries onto a temporary array, then "unshift" that onto
the front of @INC. */
+#ifndef PERL_IS_MINIPERL
AV *const av = (using_sub_dirs) ? (unshift ? newAV() : inc) : NULL;
+#endif
if (len) {
/* I am not convinced that this is valid when PERLLIB_MANGLE is
libdir = newSVpv(PERLLIB_MANGLE(dir, 0), 0);
}
+#ifdef VMS
+ char *unix;
+ STRLEN len;
+
+ if ((unix = tounixspec_ts(SvPV(libdir,len),NULL)) != NULL) {
+ len = strlen(unix);
+ while (unix[len-1] == '/') len--; /* Cosmetic */
+ sv_usepvn(libdir,unix,len);
+ }
+ else
+ PerlIO_printf(Perl_error_log,
+ "Failed to unixify @INC element \"%s\"\n",
+ SvPV(libdir,len));
+#endif
+
/* Do the if() outside the #ifdef to avoid warnings about an unused
parameter. */
if (canrelocate) {
libdir = tempsv;
if (PL_tainting &&
(PL_uid != PL_euid || PL_gid != PL_egid)) {
- /* Need to taint reloccated paths if running set ID */
+ /* Need to taint relocated paths if running set ID */
SvTAINTED_on(libdir);
}
}
}
#endif
}
+#ifndef PERL_IS_MINIPERL
/*
* BEFORE pushing libdir onto @INC we may first push version- and
* archname-specific sub-directories.
const char * const incverlist[] = { PERL_INC_VERSION_LIST };
const char * const *incver;
#endif
-#ifdef VMS
- char *unix;
- STRLEN len;
-
-
- if ((unix = tounixspec_ts(SvPV(libdir,len),NULL)) != NULL) {
- len = strlen(unix);
- while (unix[len-1] == '/') len--; /* Cosmetic */
- sv_usepvn(libdir,unix,len);
- }
- else
- PerlIO_printf(Perl_error_log,
- "Failed to unixify @INC element \"%s\"\n",
- SvPV(libdir,len));
-#endif
-
subdir = newSVsv(libdir);
if (add_versioned_sub_dirs) {
assert (SvREFCNT(subdir) == 1);
SvREFCNT_dec(subdir);
}
-
+#endif /* !PERL_IS_MINIPERL */
/* finally add this lib directory at the end of @INC */
if (unshift) {
+#ifdef PERL_IS_MINIPERL
+ const U32 extra = 0;
+#else
U32 extra = av_len(av) + 1;
+#endif
av_unshift(inc, extra + push_basedir);
if (push_basedir)
av_store(inc, extra, libdir);
+#ifndef PERL_IS_MINIPERL
while (extra--) {
/* av owns a reference, av_store() expects to be donated a
reference, and av expects to be sane when it's cleared.
av_store(inc, extra, SvREFCNT_inc(*av_fetch(av, extra, FALSE)));
}
SvREFCNT_dec(av);
+#endif
}
else if (push_basedir) {
av_push(inc, libdir);
PERL_ARGS_ASSERT_INCPUSH_USE_SEP;
+ /* perl compiled with -DPERL_RELOCATABLE_INCPUSH will ignore the len
+ * argument to incpush_use_sep. This allows creation of relocatable
+ * Perl distributions that patch the binary at install time. Those
+ * distributions will have to provide their own relocation tools; this
+ * is not a feature otherwise supported by core Perl.
+ */
+#ifndef PERL_RELOCATABLE_INCPUSH
if (!len)
+#endif
len = strlen(p);
end = p + len;