/* perl.c
*
- * Copyright (c) 1987-1997 Larry Wall
+ * Copyright (c) 1987-1998 Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
char *getenv _((char *)); /* Usually in <stdlib.h> */
#endif
+#ifdef I_FCNTL
+#include <fcntl.h>
+#endif
+#ifdef I_SYS_FILE
+#include <sys/file.h>
+#endif
+
dEXTCONST char rcsid[] = "perl.c\nPatch level: ###\n";
#ifdef IAMSUID
static int fdscript = -1;
-#if defined(DEBUGGING) && defined(USE_THREADS) && defined(__linux__)
-#include <asm/sigcontext.h>
-static void
-catch_sigsegv(int signo, struct sigcontext_struct sc)
-{
- PerlProc_signal(SIGSEGV, SIG_DFL);
- fprintf(stderr, "Segmentation fault dereferencing 0x%lx\n"
- "return_address = 0x%lx, eip = 0x%lx\n",
- sc.cr2, __builtin_return_address(0), sc.eip);
- fprintf(stderr, "thread = 0x%lx\n", (unsigned long)THR);
-}
-#endif
-
PerlInterpreter *
perl_alloc(void)
{
COND_INIT(&eval_cond);
MUTEX_INIT(&threads_mutex);
COND_INIT(&nthreads_cond);
+#ifdef EMULATE_ATOMIC_REFCOUNTS
+ MUTEX_INIT(&svref_mutex);
+#endif /* EMULATE_ATOMIC_REFCOUNTS */
thr = init_main_thread();
#endif /* USE_THREADS */
#endif
}
+ init_stacks(ARGS);
#ifdef MULTIPLICITY
I_REINIT;
perl_destruct_level = 1;
fdpid = newAV(); /* for remembering popen pids by fd */
- init_stacks(ARGS);
DEBUG( {
New(51,debname,128,char);
New(52,debdelim,128,char);
endav = Nullav;
initav = Nullav;
- /* temp stack during pp_sort() */
- SvREFCNT_dec(sortstack);
- sortstack = Nullav;
-
/* shortcuts just get cleared */
envgv = Nullgv;
siggv = Nullgv;
if (hent) {
warn("Unbalanced string table refcount: (%d) for \"%s\"",
HeVAL(hent) - Nullsv, HeKEY(hent));
- HeVAL(hent) = Nullsv;
+ HeVAL(hent) = &sv_undef;
hent = HeNEXT(hent);
}
if (!hent) {
char *validarg = "";
I32 oldscope;
AV* comppadlist;
+ int e_tmpfd = -1;
dJMPENV;
int ret;
if (euid != uid || egid != gid)
croak("No -e allowed in setuid scripts");
if (!e_fp) {
+#if defined(HAS_UMASK) && !defined(VMS)
+ int oldumask = PerlLIO_umask(0177);
+#endif
e_tmpname = savepv(TMPPATH);
+#ifdef HAS_MKSTEMP
+ e_tmpfd = PerlLIO_mkstemp(e_tmpname);
+#else /* use mktemp() */
(void)PerlLIO_mktemp(e_tmpname);
if (!*e_tmpname)
- croak("Can't mktemp()");
+ croak("Cannot generate temporary filename");
+# if defined(HAS_OPEN3) && defined(O_EXCL)
+ e_tmpfd = open(e_tmpname,
+ O_WRONLY | O_CREAT | O_EXCL,
+ 0600);
+# else
+ (void)UNLINK(e_tmpname);
+ /* Yes, potential race. But at least we can say we tried. */
e_fp = PerlIO_open(e_tmpname,"w");
- if (!e_fp)
- croak("Cannot open temporary file");
+# endif
+#endif /* ifdef HAS_MKSTEMP */
+#if defined(HAS_MKSTEMP) || (defined(HAS_OPEN3) && defined(O_EXCL))
+ if (e_tmpfd < 0)
+ croak("Cannot create temporary file \"%s\"", e_tmpname);
+ e_fp = PerlIO_fdopen(e_tmpfd,"w");
+#endif
+ if (!e_fp)
+ croak("Cannot create temporary file \"%s\"", e_tmpname);
+#if defined(HAS_UMASK) && !defined(VMS)
+ (void)PerlLIO_umask(oldumask);
+#endif
}
if (*++s)
PerlIO_puts(e_fp,s);
init_os_extras();
#endif
-#if defined(DEBUGGING) && defined(USE_THREADS) && defined(__linux__)
- DEBUG_L(PerlProc_signal(SIGSEGV, (void(*)(int))catch_sigsegv););
-#endif
-
init_predump_symbols();
if (!do_undump)
init_postdump_symbols(argc,argv,env);
(void)UNLINK(e_tmpname);
Safefree(e_tmpname);
e_tmpname = Nullch;
+ e_tmpfd = -1;
}
/* now that script is parsed, we can modify record separator */
int
perl_run(PerlInterpreter *sv_interp)
{
- dTHR;
+ dSP;
I32 oldscope;
dJMPENV;
int ret;
JMPENV_POP;
return 1;
}
- if (curstack != mainstack) {
- dSP;
- SWITCHSTACK(curstack, mainstack);
- }
+ POPSTACK_TO(mainstack);
break;
}
{
dSP;
- PUSHMARK(sp);
+ PUSHMARK(SP);
if (argv) {
while (*argv) {
XPUSHs(sv_2mortal(newSVpv(*argv,0)));
/* See G_* flags in cop.h */
{
- dTHR;
+ dSP;
LOGOP myop; /* fake syntax tree node */
- SV** sp = stack_sp;
I32 oldmark;
I32 retval;
I32 oldscope;
/* See G_* flags in cop.h */
{
- dTHR;
+ dSP;
UNOP myop; /* fake syntax tree node */
- SV** sp = stack_sp;
- I32 oldmark = sp - stack_base;
+ I32 oldmark = SP - stack_base;
I32 retval;
I32 oldscope;
dJMPENV;
dSP;
SV* sv = newSVpv(p, 0);
- PUSHMARK(sp);
+ PUSHMARK(SP);
perl_eval_sv(sv, G_SCALAR);
SvREFCNT_dec(sv);
LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : "");
#endif
- printf("\n\nCopyright 1987-1997, Larry Wall\n");
+ printf("\n\nCopyright 1987-1998, Larry Wall\n");
#ifdef MSDOS
printf("\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
#endif
#ifdef DJGPP
printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n");
- printf("djgpp v2 port (perl5004) by Laszlo Molnar, 1997\n");
+ printf("djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1998\n");
#endif
#ifdef OS2
printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
- "Version 5 port Copyright (c) 1994-1997, Andreas Kaiser, Ilya Zakharevich\n");
+ "Version 5 port Copyright (c) 1994-1998, Andreas Kaiser, Ilya Zakharevich\n");
#endif
#ifdef atarist
printf("atariST series port, ++jrb bammi@cadence.com\n");
sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), "\n", 1);
}
-#ifdef CAN_PROTOTYPE
static void
open_script(char *scriptname, bool dosearch, SV *sv)
-#else
-static void
-open_script(scriptname,dosearch,sv)
-char *scriptname;
-bool dosearch;
-SV *sv;
-#endif
{
dTHR;
char *xfound = Nullch;
#endif
DEBUG_p(PerlIO_printf(Perl_debug_log,
"Looking for %s\n",cur));
- if (Stat(cur,&statbuf) >= 0) {
+ if (PerlLIO_stat(cur,&statbuf) >= 0) {
dosearch = 0;
scriptname = cur;
#ifdef SEARCH_EXTS
do {
#endif
DEBUG_p(PerlIO_printf(Perl_debug_log, "Looking for %s\n",tokenbuf));
- retval = Stat(tokenbuf,&statbuf);
+ retval = PerlLIO_stat(tokenbuf,&statbuf);
#ifdef SEARCH_EXTS
} while ( retval < 0 /* not there */
&& extidx>=0 && ext[extidx] /* try an extension? */
xfailed = savepv(tokenbuf);
}
#ifndef DOSISH
- if (!xfound && !seen_dot && !xfailed && (Stat(scriptname,&statbuf) < 0))
+ if (!xfound && !seen_dot && !xfailed && (PerlLIO_stat(scriptname,&statbuf) < 0))
#endif
seen_dot = 1; /* Disable message. */
if (!xfound)
if (!rsfp) {
#ifdef DOSUID
#ifndef IAMSUID /* in case script is not readable before setuid */
- if (euid && Stat(SvPVX(GvSV(curcop->cop_filegv)),&statbuf) >= 0 &&
+ if (euid && PerlLIO_stat(SvPVX(GvSV(curcop->cop_filegv)),&statbuf) >= 0 &&
statbuf.st_mode & (S_ISUID|S_ISGID)) {
/* try again */
PerlProc_execv(form("%s/sperl%s", BIN_EXP, patchlevel), origargv);
#endif
|| getuid() != euid || geteuid() != uid)
croak("Can't swap uid and euid"); /* really paranoid */
- if (Stat(SvPVX(GvSV(curcop->cop_filegv)),&tmpstatbuf) < 0)
+ if (PerlLIO_stat(SvPVX(GvSV(curcop->cop_filegv)),&tmpstatbuf) < 0)
croak("Permission denied"); /* testing full pathname here */
if (tmpstatbuf.st_dev != statbuf.st_dev ||
tmpstatbuf.st_ino != statbuf.st_ino) {
curstash = defstash;
}
+#ifndef STRESS_REALLOC
+#define REASONABLE(size) (size)
+#else
+#define REASONABLE(size) (1) /* unreasonable */
+#endif
+
void
init_stacks(ARGSproto)
{
- curstack = newAV();
+ /* start with 128-item stack and 8K cxstack */
+ curstackinfo = new_stackinfo(REASONABLE(128),
+ REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
+ curstackinfo->si_type = SI_MAIN;
+ curstack = curstackinfo->si_stack;
mainstack = curstack; /* remember in case we switch stacks */
- AvREAL_off(curstack); /* not a real array */
- av_extend(curstack,127);
stack_base = AvARRAY(curstack);
stack_sp = stack_base;
- stack_max = stack_base + 127;
+ stack_max = stack_base + AvMAX(curstack);
- cxstack_max = 8192 / sizeof(PERL_CONTEXT) - 2; /* Use most of 8K. */
- New(50,cxstack,cxstack_max + 1,PERL_CONTEXT);
- cxstack_ix = -1;
-
- New(50,tmps_stack,128,SV*);
+ New(50,tmps_stack,REASONABLE(128),SV*);
tmps_floor = -1;
tmps_ix = -1;
- tmps_max = 128;
+ tmps_max = REASONABLE(128);
/*
* The following stacks almost certainly should be per-interpreter,
if (markstack) {
markstack_ptr = markstack;
} else {
- New(54,markstack,64,I32);
+ New(54,markstack,REASONABLE(32),I32);
markstack_ptr = markstack;
- markstack_max = markstack + 64;
+ markstack_max = markstack + REASONABLE(32);
}
+ SET_MARKBASE;
+
if (scopestack) {
scopestack_ix = 0;
} else {
- New(54,scopestack,32,I32);
+ New(54,scopestack,REASONABLE(32),I32);
scopestack_ix = 0;
- scopestack_max = 32;
+ scopestack_max = REASONABLE(32);
}
if (savestack) {
savestack_ix = 0;
} else {
- New(54,savestack,128,ANY);
+ New(54,savestack,REASONABLE(128),ANY);
savestack_ix = 0;
- savestack_max = 128;
+ savestack_max = REASONABLE(128);
}
if (retstack) {
retstack_ix = 0;
} else {
- New(54,retstack,16,OP*);
+ New(54,retstack,REASONABLE(16),OP*);
retstack_ix = 0;
- retstack_max = 16;
+ retstack_max = REASONABLE(16);
}
}
+#undef REASONABLE
+
static void
nuke_stacks(void)
{
dTHR;
- Safefree(cxstack);
+ while (curstackinfo->si_next)
+ curstackinfo = curstackinfo->si_next;
+ while (curstackinfo) {
+ PERL_SI *p = curstackinfo->si_prev;
+ SvREFCNT_dec(curstackinfo->si_stack);
+ Safefree(curstackinfo->si_cxstack);
+ Safefree(curstackinfo);
+ curstackinfo = p;
+ }
Safefree(tmps_stack);
DEBUG( {
Safefree(debname);
}
/* Use the ~-expanded versions of APPLLIB (undocumented),
- ARCHLIB PRIVLIB SITEARCH SITELIB and OLDARCHLIB
+ ARCHLIB PRIVLIB SITEARCH and SITELIB
*/
#ifdef APPLLIB_EXP
incpush(APPLLIB_EXP, FALSE);
#ifdef SITELIB_EXP
incpush(SITELIB_EXP, FALSE);
#endif
-#ifdef OLDARCHLIB_EXP /* 5.00[01] compatibility */
- incpush(OLDARCHLIB_EXP, FALSE);
-#endif
-
if (!tainting)
incpush(".", FALSE);
}
/* .../archname/version if -d .../archname/version/auto */
sv_setsv(subdir, libdir);
sv_catpv(subdir, archpat_auto);
- if (Stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
+ if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
S_ISDIR(tmpstatbuf.st_mode))
av_push(GvAVn(incgv),
newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
/* .../archname if -d .../archname/auto */
sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME),
strlen(patchlevel) + 1, "", 0);
- if (Stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
+ if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
S_ISDIR(tmpstatbuf.st_mode))
av_push(GvAVn(incgv),
newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
sv_setpvn(bodytarget, "", 0);
formtarget = bodytarget;
thr->errsv = newSVpv("", 0);
+ (void) find_threadsv("@"); /* Ensure $@ is initialised early */
return thr;
}
#endif /* USE_THREADS */
projects / p5sagit/p5-mst-13.2.git / blobdiff