/* perl.c
*
- * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 by Larry Wall and others
+ * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
+ * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 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.
Perl_sys_init(int* argc, char*** argv)
{
dVAR;
+
+ PERL_ARGS_ASSERT_SYS_INIT;
+
PERL_UNUSED_ARG(argc); /* may not be used depending on _BODY macro */
PERL_UNUSED_ARG(argv);
PERL_SYS_INIT_BODY(argc, argv);
Perl_sys_init3(int* argc, char*** argv, char*** env)
{
dVAR;
+
+ PERL_ARGS_ASSERT_SYS_INIT3;
+
PERL_UNUSED_ARG(argc); /* may not be used depending on _BODY macro */
PERL_UNUSED_ARG(argv);
PERL_UNUSED_ARG(env);
struct IPerlProc* ipP)
{
PerlInterpreter *my_perl;
+
+ PERL_ARGS_ASSERT_PERL_ALLOC_USING;
+
/* Newx() needs interpreter, so call malloc() instead */
my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter));
S_init_tls_and_interp(my_perl);
perl_construct(pTHXx)
{
dVAR;
- PERL_UNUSED_ARG(my_perl);
+
+ PERL_ARGS_ASSERT_PERL_CONSTRUCT;
+
#ifdef MULTIPLICITY
init_interp();
PL_perl_destruct_level = 1;
#else
+ PERL_UNUSED_ARG(my_perl);
if (PL_perl_destruct_level > 0)
init_interp();
#endif
PL_fdpid = newAV(); /* for remembering popen pids by fd */
PL_modglobal = newHV(); /* pointers to per-interpreter module globals */
PL_errors = newSVpvs("");
- sv_setpvn(PERL_DEBUG_PAD(0), "", 0); /* For regex debugging. */
- sv_setpvn(PERL_DEBUG_PAD(1), "", 0); /* ext/re needs these */
- sv_setpvn(PERL_DEBUG_PAD(2), "", 0); /* even without DEBUGGING. */
+ sv_setpvs(PERL_DEBUG_PAD(0), ""); /* For regex debugging. */
+ sv_setpvs(PERL_DEBUG_PAD(1), ""); /* ext/re needs these */
+ sv_setpvs(PERL_DEBUG_PAD(2), ""); /* even without DEBUGGING. */
#ifdef USE_ITHREADS
/* First entry is a list of empty elements. It needs to be initialised
else all hell breaks loose in S_find_uninit_var(). */
int returned_errno;
unsigned char buffer[256];
+ PERL_ARGS_ASSERT_DUMP_SV_CHILD;
+
if(sock == -1 || debug_fd == -1)
return;
pid_t child;
#endif
+ PERL_ARGS_ASSERT_PERL_DESTRUCT;
+#ifndef MULTIPLICITY
PERL_UNUSED_ARG(my_perl);
+#endif
/* wait for all pseudo-forked children to finish */
PERL_WAIT_FOR_CHILDREN;
int f;
const char *where;
/* Our success message is an integer 0, and a char 0 */
- static const char success[sizeof(int) + 1];
+ static const char success[sizeof(int) + 1] = {0};
close(fd[0]);
}
/* Now absolutely destruct everything, somehow or other, loops or no. */
- SvFLAGS(PL_fdpid) |= SVTYPEMASK; /* don't clean out pid table now */
- SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */
/* the 2 is for PL_fdpid and PL_strtab */
- while (PL_sv_count > 2 && sv_clean_all())
+ while (sv_clean_all() > 2)
;
- SvFLAGS(PL_fdpid) &= ~SVTYPEMASK;
- SvFLAGS(PL_fdpid) |= SVt_PVAV;
- SvFLAGS(PL_strtab) &= ~SVTYPEMASK;
- SvFLAGS(PL_strtab) |= SVt_PVHV;
-
AvREAL_off(PL_fdpid); /* no surviving entries */
SvREFCNT_dec(PL_fdpid); /* needed in io_close() */
PL_fdpid = NULL;
{
dVAR;
+ PERL_ARGS_ASSERT_PERL_FREE;
+
if (PL_veto_cleanup)
return;
*/
const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL");
if (!s || atoi(s) == 0) {
+ const U32 old_debug = PL_debug;
/* Emulate the PerlHost behaviour of free()ing all memory allocated in this
thread at thread exit. */
+ if (DEBUG_m_TEST) {
+ PerlIO_puts(Perl_debug_log, "Disabling memory debugging as we "
+ "free this thread's memory\n");
+ PL_debug &= ~ DEBUG_m_FLAG;
+ }
while(aTHXx->Imemory_debug_header.next != &(aTHXx->Imemory_debug_header))
safesysfree(sTHX + (char *)(aTHXx->Imemory_debug_header.next));
+ PL_debug = old_debug;
}
}
#endif
int ret;
dJMPENV;
+ PERL_ARGS_ASSERT_PERL_PARSE;
+#ifndef MULTIPLICITY
PERL_UNUSED_ARG(my_perl);
+#endif
#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW_AND_IAMSUID
Perl_croak(aTHX_ "suidperl is no longer needed since the kernel can now "
bool add_read_e_script = FALSE;
SvGROW(linestr_sv, 80);
- sv_setpvn(linestr_sv,"",0);
+ sv_setpvs(linestr_sv,"");
sv = newSVpvs(""); /* first used for -I flags */
SAVEFREESV(sv);
# ifdef USE_SITECUSTOMIZE
" USE_SITECUSTOMIZE"
# endif
+# ifdef USE_FAST_STDIO
+ " USE_FAST_STDIO"
+# endif
, 0);
sv_catpv(opts_prog, PL_bincompat_options);
#endif
(s = PerlEnv_getenv("PERL5OPT")))
{
- const char *popt = s;
while (isSPACE(*s))
s++;
if (*s == '-' && *(s+1) == 'T') {
else {
char *popt_copy = NULL;
while (s && *s) {
- char *d;
+ const char *d;
while (isSPACE(*s))
s++;
if (*s == '-') {
while (++s && *s) {
if (isSPACE(*s)) {
if (!popt_copy) {
- popt_copy = SvPVX(sv_2mortal(newSVpv(popt,0)));
- s = popt_copy + (s - popt);
- d = popt_copy + (d - popt);
+ popt_copy = SvPVX(sv_2mortal(newSVpv(d,0)));
+ s = popt_copy + (s - d);
+ d = popt_copy;
}
*s++ = '\0';
break;
}
}
- PL_main_cv = PL_compcv = (CV*)newSV_type(SVt_PVCV);
+ PL_main_cv = PL_compcv = MUTABLE_CV(newSV_type(SVt_PVCV));
CvUNIQUE_on(PL_compcv);
CvPADLIST(PL_compcv) = pad_new(0);
U32 out = PL_unicode & PERL_UNICODE_OUT_FLAG;
if (in) {
if (out)
- sv_setpvn(sv, ":utf8\0:utf8", 11);
+ sv_setpvs(sv, ":utf8\0:utf8");
else
- sv_setpvn(sv, ":utf8\0", 6);
+ sv_setpvs(sv, ":utf8\0");
}
else if (out)
- sv_setpvn(sv, "\0:utf8", 6);
+ sv_setpvs(sv, "\0:utf8");
SvSETMAGIC(sv);
}
}
int ret = 0;
dJMPENV;
+ PERL_ARGS_ASSERT_PERL_RUN;
+#ifndef MULTIPLICITY
PERL_UNUSED_ARG(my_perl);
+#endif
oldscope = PL_scopestack_ix;
#ifdef VMS
if (!DEBUG_q_TEST)
PERL_DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
#endif
- DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%"UVxf"\n",
- PTR2UV(thr)));
if (PL_minus_c) {
#ifdef MACOS_TRADITIONAL
Perl_get_sv(pTHX_ const char *name, I32 create)
{
GV *gv;
+
+ PERL_ARGS_ASSERT_GET_SV;
+
gv = gv_fetchpv(name, create, SVt_PV);
if (gv)
return GvSV(gv);
Perl_get_av(pTHX_ const char *name, I32 create)
{
GV* const gv = gv_fetchpv(name, create, SVt_PVAV);
+
+ PERL_ARGS_ASSERT_GET_AV;
+
if (create)
return GvAVn(gv);
if (gv)
Perl_get_hv(pTHX_ const char *name, I32 create)
{
GV* const gv = gv_fetchpv(name, create, SVt_PVHV);
+
+ PERL_ARGS_ASSERT_GET_HV;
+
if (create)
return GvHVn(gv);
if (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! */
+
+ PERL_ARGS_ASSERT_GET_CVN_FLAGS;
+
if ((flags & ~GV_NOADD_MASK) && !GvCVu(gv)) {
SV *const sv = newSVpvn_flags(name, len, flags & SVf_UTF8);
return newSUB(start_subparse(FALSE, 0),
CV*
Perl_get_cv(pTHX_ const char *name, I32 flags)
{
+ PERL_ARGS_ASSERT_GET_CV;
+
return get_cvn_flags(name, strlen(name), flags);
}
dVAR;
dSP;
+ PERL_ARGS_ASSERT_CALL_ARGV;
+
PUSHMARK(SP);
if (argv) {
while (*argv) {
/* name of the subroutine */
/* See G_* flags in cop.h */
{
+ PERL_ARGS_ASSERT_CALL_PV;
+
return call_sv((SV*)get_cv(sub_name, TRUE), flags);
}
/* name of the subroutine */
/* See G_* flags in cop.h */
{
+ PERL_ARGS_ASSERT_CALL_METHOD;
+
return call_sv(sv_2mortal(newSVpv(methname,0)), flags | G_METHOD);
}
*/
I32
-Perl_call_sv(pTHX_ SV *sv, I32 flags)
+Perl_call_sv(pTHX_ SV *sv, VOL I32 flags)
/* See G_* flags in cop.h */
{
dVAR; dSP;
OP* const oldop = PL_op;
dJMPENV;
+ PERL_ARGS_ASSERT_CALL_SV;
+
if (flags & G_DISCARD) {
ENTER;
SAVETMPS;
}
+ if (!(flags & G_WANT)) {
+ /* Backwards compatibility - as G_SCALAR was 0, it could be omitted.
+ */
+ flags |= G_SCALAR;
+ }
Zero(&myop, 1, LOGOP);
myop.op_next = NULL;
&& (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
/* Try harder, since this may have been a sighandler, thus
* curstash may be meaningless. */
- && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash)
+ && (SvTYPE(sv) != SVt_PVCV || CvSTASH((const CV *)sv) != PL_debstash)
&& !(flags & G_NODEBUG))
PL_op->op_private |= OPpENTERSUB_DB;
Zero(&method_op, 1, UNOP);
method_op.op_next = PL_op;
method_op.op_ppaddr = PL_ppaddr[OP_METHOD];
+ method_op.op_type = OP_METHOD;
myop.op_ppaddr = PL_ppaddr[OP_ENTERSUB];
+ myop.op_type = OP_ENTERSUB;
PL_op = (OP*)&method_op;
}
redo_body:
CALL_BODY_SUB((OP*)&myop);
retval = PL_stack_sp - (PL_stack_base + oldmark);
- if (!(flags & G_KEEPERR))
- sv_setpvn(ERRSV,"",0);
+ if (!(flags & G_KEEPERR)) {
+ CLEAR_ERRSV();
+ }
break;
case 1:
STATUS_ALL_FAILURE;
OP* const oldop = PL_op;
dJMPENV;
+ PERL_ARGS_ASSERT_EVAL_SV;
+
if (flags & G_DISCARD) {
ENTER;
SAVETMPS;
redo_body:
CALL_BODY_EVAL((OP*)&myop);
retval = PL_stack_sp - (PL_stack_base + oldmark);
- if (!(flags & G_KEEPERR))
- sv_setpvn(ERRSV,"",0);
+ if (!(flags & G_KEEPERR)) {
+ CLEAR_ERRSV();
+ }
break;
case 1:
STATUS_ALL_FAILURE;
dSP;
SV* sv = newSVpv(p, 0);
+ PERL_ARGS_ASSERT_EVAL_PV;
+
eval_sv(sv, G_SCALAR);
SvREFCNT_dec(sv);
dVAR;
dSP;
SV* sv;
+
+ PERL_ARGS_ASSERT_REQUIRE_PV;
+
PUSHSTACKi(PERLSI_REQUIRE);
PUTBACK;
sv = Perl_newSVpvf(aTHX_ "require q%c%s%c", 0, pv, 0);
{
register GV * const gv = gv_fetchpv(sym, GV_ADD, SVt_PV);
+ PERL_ARGS_ASSERT_MAGICNAME;
+
if (gv)
sv_magic(GvSV(gv), (SV*)gv, PERL_MAGIC_sv, name, namlen);
}
};
const char * const *p = usage_msg;
+ PERL_ARGS_ASSERT_USAGE;
+
PerlIO_printf(PerlIO_stdout(),
"\nUsage: %s [switches] [--] [programfile] [arguments]",
name);
" o Method and overloading resolution",
" c String/numeric conversions",
" P Print profiling info, source file input state",
- " m Memory allocation",
+ " m Memory and SV allocation",
" f Format processing",
" r Regular expression parsing and execution",
" x Syntax tree dump",
" H Hash dump -- usurps values()",
" X Scratchpad allocation",
" D Cleaning up",
- " S Thread synchronization",
" T Tokenising",
" R Include reference counts of dumped variables (eg when using -Ds)",
" J Do not s,t,P-debug (Jump over) opcodes within package DB",
NULL
};
int i = 0;
+
+ PERL_ARGS_ASSERT_GET_DEBUG_OPTS;
+
if (isALPHA(**s)) {
/* if adding extra options, remember to update DEBUG_MASK */
static const char debopts[] = "psltocPmfrxuUHXDSTRJvCAq";
{
dVAR;
UV rschar;
+ const char option = *s; /* used to remember option in -m/-M code */
+
+ PERL_ARGS_ASSERT_MORESWITCHES;
switch (*s) {
case '0':
const char *end;
SV *sv;
const char *use = "use ";
+ bool colon = FALSE;
/* -M-foo == 'no foo' */
/* Leading space on " no " is deliberate, to make both
possibilities the same length. */
sv = newSVpvn(use,4);
start = s;
/* We allow -M'Module qw(Foo Bar)' */
- while(isALNUM(*s) || *s==':') ++s;
+ while(isALNUM(*s) || *s==':') {
+ if( *s++ == ':' ) {
+ if( *s == ':' )
+ s++;
+ else
+ colon = TRUE;
+ }
+ }
+ if (s == start)
+ Perl_croak(aTHX_ "Module name required with -%c option",
+ option);
+ if (colon)
+ Perl_croak(aTHX_ "Invalid module name %.*s with -%c option: "
+ "contains single ':'",
+ (int)(s - start), start, option);
end = s + strlen(s);
if (*s != '=') {
sv_catpvn(sv, start, end - start);
- if (*(start-1) == 'm') {
+ if (option == 'm') {
if (*s != '\0')
Perl_croak(aTHX_ "Can't use '%c' after -mname", *s);
sv_catpvs( sv, " ()");
}
} else {
- if (s == start)
- Perl_croak(aTHX_ "Module name required with -%c option",
- s[-1]);
sv_catpvn(sv, start, s-start);
/* Use NUL as q''-delimiter. */
sv_catpvs(sv, " split(/,/,q\0");
Perl_av_create_and_push(aTHX_ &PL_preambleav, sv);
}
else
- Perl_croak(aTHX_ "Missing argument to -%c", *(s-1));
+ Perl_croak(aTHX_ "Missing argument to -%c", option);
return s;
case 'n':
PL_minus_n = TRUE;
#endif
PerlIO_printf(PerlIO_stdout(),
- "\n\nCopyright 1987-2007, Larry Wall\n");
+ "\n\nCopyright 1987-2008, Larry Wall\n");
#ifdef MACOS_TRADITIONAL
PerlIO_printf(PerlIO_stdout(),
"\nMac OS port Copyright 1991-2002, Matthias Neeracher;\n"
return s;
case '*':
case ' ':
- if (s[1] == '-') /* Additional switches on #! line. */
- return s+2;
+ while( *s == ' ' )
+ ++s;
+ if (s[0] == '-') /* Additional switches on #! line. */
+ return s+1;
break;
case '-':
case 0:
of the SvREFCNT_dec, only to add it again with hv_name_set */
SvREFCNT_dec(GvHV(gv));
hv_name_set(PL_defstash, "main", 4, 0);
- GvHV(gv) = (HV*)SvREFCNT_inc_simple(PL_defstash);
+ GvHV(gv) = MUTABLE_HV(SvREFCNT_inc_simple(PL_defstash));
SvREADONLY_on(gv);
PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpvs("INC", GV_ADD|GV_NOTQUAL,
SVt_PVAV)));
gv_SVadd(PL_errgv);
#endif
sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
- sv_setpvn(ERRSV, "", 0);
+ CLEAR_ERRSV();
PL_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,
SVt_PVHV));
/* We must init $/ before switches are processed. */
- sv_setpvn(get_sv("/", TRUE), "\n", 1);
+ sv_setpvs(get_sv("/", TRUE), "\n");
}
STATIC int
int fdscript = -1;
dVAR;
+ PERL_ARGS_ASSERT_OPEN_SCRIPT;
+
if (PL_e_script) {
PL_origfilename = savepvs("-e");
}
dVAR;
const char *s, *s2;
+ PERL_ARGS_ASSERT_VALIDATE_SUID;
+
/* do we need to emulate setuid on scripts? */
/* This code is for those BSD systems that have setuid #! scripts disabled
STATIC void
S_validate_suid(pTHX_ PerlIO *rsfp)
{
+ PERL_ARGS_ASSERT_VALIDATE_SUID;
+
if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
# ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
+ dVAR;
+
PerlLIO_fstat(PerlIO_fileno(rsfp),&PL_statbuf); /* may be either wrapped or real suid */
if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
||
int maclines = 0;
#endif
+ PERL_ARGS_ASSERT_FIND_BEGINNING;
+
/* skip forward in input to the real script? */
#ifdef MACOS_TRADITIONAL
GV *tmpgv;
IO *io;
- sv_setpvn(get_sv("\"", TRUE), " ", 1);
+ sv_setpvs(get_sv("\"", TRUE), " ");
PL_stdingv = gv_fetchpvs("STDIN", GV_ADD|GV_NOTQUAL, SVt_PVIO);
GvMULTI_on(PL_stdingv);
io = GvIOp(PL_stdingv);
Perl_init_argv_symbols(pTHX_ register int argc, register char **argv)
{
dVAR;
+
+ PERL_ARGS_ASSERT_INIT_ARGV_SYMBOLS;
+
argc--,argv++; /* skip name of script */
if (PL_doswitches) {
for (; argc > 0 && **argv == '-'; argc--,argv++) {
dVAR;
GV* tmpgv;
+ PERL_ARGS_ASSERT_INIT_POSTDUMP_SYMBOLS;
+
PL_toptarget = newSV_type(SVt_PVFM);
- sv_setpvn(PL_toptarget, "", 0);
+ sv_setpvs(PL_toptarget, "");
PL_bodytarget = newSV_type(SVt_PVFM);
- sv_setpvn(PL_bodytarget, "", 0);
+ sv_setpvs(PL_bodytarget, "");
PL_formtarget = PL_bodytarget;
TAINT;
environ[0] = NULL;
}
if (env) {
- char *s;
+ char *s, *old_var;
SV *sv;
for (; *env; env++) {
- if (!(s = strchr(*env,'=')) || s == *env)
+ old_var = *env;
+
+ if (!(s = strchr(old_var,'=')) || s == old_var)
continue;
+
#if defined(MSDOS) && !defined(DJGPP)
*s = '\0';
- (void)strupr(*env);
+ (void)strupr(old_var);
*s = '=';
#endif
sv = newSVpv(s+1, 0);
- (void)hv_store(hv, *env, s - *env, sv, 0);
+ (void)hv_store(hv, old_var, s - old_var, sv, 0);
if (env_is_not_environ)
mg_set(sv);
}
{
dVAR;
Stat_t tmpstatbuf;
+
+ PERL_ARGS_ASSERT_INCPUSH_IF_EXISTS;
+
if (PerlLIO_stat(SvPVX_const(dir), &tmpstatbuf) >= 0 &&
S_ISDIR(tmpstatbuf.st_mode)) {
av_push(GvAVn(PL_incgv), dir);
int ret;
dJMPENV;
+ PERL_ARGS_ASSERT_CALL_LIST;
+
while (av_len(paramList) >= 0) {
- cv = (CV*)av_shift(paramList);
+ cv = MUTABLE_CV(av_shift(paramList));
if (PL_savebegin) {
if (paramList == PL_beginav) {
/* save PL_beginav for compiler */
Perl_my_exit(pTHX_ U32 status)
{
dVAR;
- DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
- (void*)thr, (unsigned long) status));
switch (status) {
case 0:
STATUS_ALL_SUCCESS;
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