/* 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.
* 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"
# define validate_suid(validarg, scriptname, fdscript, suidscript, linestr_sv, rsfp) S_validate_suid(aTHX_ rsfp)
#endif
-#define CALL_BODY_EVAL(myop) \
- if (PL_op == (myop)) \
- PL_op = PL_ppaddr[OP_ENTEREVAL](aTHX); \
- if (PL_op) \
- CALLRUNOPS(aTHX);
-
#define CALL_BODY_SUB(myop) \
if (PL_op == (myop)) \
PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); \
PL_stashcache = newHV();
PL_patchlevel = newSVpvs("v" PERL_VERSION_STRING);
+ PL_apiversion = newSVpvs("v" PERL_API_VERSION_STRING);
#ifdef HAS_MMAP
if (!PL_mmap_page_size) {
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;
/* Need to flush since END blocks can produce output */
my_fflush_all();
- if (CALL_FPTR(PL_threadhook)(aTHX)) {
+ if (PL_threadhook(aTHX)) {
/* Threads hook has vetoed further cleanup */
PL_veto_cleanup = TRUE;
return STATUS_EXIT;
PL_main_root = NULL;
}
PL_main_start = NULL;
+ /* note that PL_main_cv isn't usually actually freed at this point,
+ * due to the CvOUTSIDE refs from subs compiled within it. It will
+ * get freed once all the subs are freed in sv_clean_all(), for
+ * 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
*/
sv_clean_objs();
PL_sv_objcount = 0;
- if (PL_defoutgv && !SvREFCNT(PL_defoutgv))
- PL_defoutgv = NULL; /* may have been freed */
}
/* unhook hooks which will soon be, or use, destroyed data */
return STATUS_EXIT;
}
- /* reset so print() ends up where we expect */
- setdefout(NULL);
-
#ifdef USE_ITHREADS
/* the syntax tree is shared between clones
* so op_free(PL_main_root) only ReREFCNT_dec's
PL_minus_F = FALSE;
PL_doswitches = FALSE;
PL_dowarn = G_WARN_OFF;
- PL_doextract = FALSE;
PL_sawampersand = FALSE; /* must save all match strings */
PL_unsafe = FALSE;
Safefree(PL_inplace);
PL_inplace = NULL;
SvREFCNT_dec(PL_patchlevel);
+ SvREFCNT_dec(PL_apiversion);
if (PL_e_script) {
SvREFCNT_dec(PL_e_script);
/* 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;
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_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);
PL_compiling.cop_warnings = NULL;
- Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash);
- PL_compiling.cop_hints_hash = NULL;
+ cophh_free(CopHINTHASH_get(&PL_compiling));
+ CopHINTHASH_set(&PL_compiling, cophh_new_empty());
CopFILE_free(&PL_compiling);
CopSTASH_free(&PL_compiling);
/* Prepare to destruct main symbol table. */
hv = PL_defstash;
+ /* break ref loop *:: <=> %:: */
+ (void)hv_delete(hv, "main::", 6, G_DISCARD);
PL_defstash = 0;
SvREFCNT_dec(hv);
SvREFCNT_dec(PL_curstname);
(long)cxstack_ix + 1);
}
+#ifdef PERL_IMPLICIT_CONTEXT
+ /* the entries in this list are allocated via SV PVX's, so get freed
+ * in sv_clean_all */
+ Safefree(PL_my_cxt_list);
+#endif
+
/* Now absolutely destruct everything, somehow or other, loops or no. */
/* the 2 is for PL_fdpid and PL_strtab */
Safefree(array);
HvARRAY(PL_strtab) = 0;
HvTOTALKEYS(PL_strtab) = 0;
- HvFILL(PL_strtab) = 0;
}
SvREFCNT_dec(PL_strtab);
PerlIO_printf(Perl_debug_log, "leaked: sv=0x%p"
" flags=0x%"UVxf
" refcnt=%"UVuf pTHX__FORMAT "\n"
- "\tallocated at %s:%d %s %s%s; serial %"UVuf"\n",
+ "\tallocated at %s:%d %s %s (parent 0x%"UVxf");"
+ "serial %"UVuf"\n",
(void*)sv, (UV)sv->sv_flags, (UV)sv->sv_refcnt
pTHX__VALUE,
sv->sv_debug_file ? sv->sv_debug_file : "(unknown)",
sv->sv_debug_inpad ? "for" : "by",
sv->sv_debug_optype ?
PL_op_name[sv->sv_debug_optype]: "(none)",
- sv->sv_debug_cloned ? " (cloned)" : "",
+ PTR2UV(sv->sv_debug_parent),
sv->sv_debug_serial
);
#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
Safefree(PL_psig_name);
PL_psig_name = (SV**)NULL;
PL_psig_ptr = (SV**)NULL;
- Safefree(PL_psig_pend);
- PL_psig_pend = (int*)NULL;
{
/* We need to NULL PL_psig_pend first, so that
signal handlers know not to use it */
#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 PERL_DONT_CREATE_GVSV
" PERL_DONT_CREATE_GVSV"
# endif
+# ifdef PERL_EXTERNAL_GLOB
+ " PERL_EXTERNAL_GLOB"
+# endif
# ifdef PERL_IS_MINIPERL
" PERL_IS_MINIPERL"
# 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
const char *scriptname = NULL;
VOL bool dosearch = FALSE;
register char c;
+ bool doextract = FALSE;
const char *cddir = NULL;
#ifdef USE_SITECUSTOMIZE
bool minus_f = FALSE;
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,"");
goto reswitch;
}
case 'x':
- PL_doextract = TRUE;
+ doextract = TRUE;
s++;
if (*s)
cddir = s;
}
}
-#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 $!; -f '%s/sitecustomize.pl'} && do '%s/sitecustomize.pl' }", sitelib, sitelib));
+# endif
}
#endif
# endif
#endif
- if (PL_doextract) {
+ if (doextract) {
/* This will croak if suidscript is true, as -x cannot be used with
setuid scripts. */
}
#endif
- lex_start(linestr_sv, rsfp, TRUE);
+ lex_start(linestr_sv, rsfp, 0);
PL_subname = newSVpvs("main");
if (add_read_e_script)
/* now parse the script */
SETERRNO(0,SS_NORMAL);
- if (yyparse() || PL_parser->error_count) {
+ if (yyparse(GRAMPROG) || PL_parser->error_count) {
if (PL_minus_c)
Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename);
else {
#endif
ENTER;
+ PL_restartjmpenv = NULL;
PL_restartop = 0;
return NULL;
}
FREETMPS;
PL_curstash = PL_defstash;
if (!(PL_exit_flags & PERL_EXIT_DESTRUCT_END) &&
- PL_endav && !PL_minus_c)
+ PL_endav && !PL_minus_c) {
+ PERL_SET_PHASE(PERL_PHASE_END);
call_list(oldscope, PL_endav);
+ }
#ifdef MYMALLOC
if (PerlEnv_getenv("PERL_DEBUG_MSTATS"))
dump_mstats("after execution: ");
}
if (PERLDB_SINGLE && PL_DBsingle)
sv_setiv(PL_DBsingle, 1);
- if (PL_initav)
+ if (PL_initav) {
+ PERL_SET_PHASE(PERL_PHASE_INIT);
call_list(oldscope, PL_initav);
+ }
#ifdef PERL_DEBUG_READONLY_OPS
Perl_pending_Slabs_to_ro(aTHX);
#endif
/* do it */
+ PERL_SET_PHASE(PERL_PHASE_RUN);
+
if (PL_restartop) {
+ PL_restartjmpenv = NULL;
PL_op = PL_restartop;
PL_restartop = 0;
CALLRUNOPS(aTHX);
=for apidoc p||get_av
-Returns the AV of the specified Perl array. C<flags> are passed to
-C<gv_fetchpv>. If C<GV_ADD> is set and the
+Returns the AV of the specified Perl global or package array with the given
+name (so it won't work on lexical variables). C<flags> are passed
+to C<gv_fetchpv>. If C<GV_ADD> is set and the
Perl variable does not exist then it will be created. If C<flags> is zero
and the variable does not exist then NULL is returned.
+Perl equivalent: C<@{"$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
*/
/* NOTREACHED */
case 3:
if (PL_restartop) {
+ PL_restartjmpenv = NULL;
PL_op = PL_restartop;
PL_restartop = 0;
goto redo_body;
/*
=for apidoc p||eval_sv
-Tells Perl to C<eval> the string in the 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 G_EVAL. See L<perlcall>.
=cut
*/
switch (ret) {
case 0:
redo_body:
- CALL_BODY_EVAL((OP*)&myop);
+ if (PL_op == (OP*)(&myop)) {
+ PL_op = PL_ppaddr[OP_ENTEREVAL](aTHX);
+ if (!PL_op)
+ goto fail; /* failed in compilation */
+ }
+ CALLRUNOPS(aTHX);
retval = PL_stack_sp - (PL_stack_base + oldmark);
if (!(flags & G_KEEPERR)) {
CLEAR_ERRSV();
/* NOTREACHED */
case 3:
if (PL_restartop) {
+ PL_restartjmpenv = NULL;
PL_op = PL_restartop;
PL_restartop = 0;
goto redo_body;
}
+ fail:
PL_stack_sp = PL_stack_base + oldmark;
if ((flags & G_WANT) == G_ARRAY)
retval = 0;
/* This message really ought to be max 23 lines.
* Removed -h because the user already knows that option. Others? */
+ /* Grouped as 6 lines per C string literal, to keep under the ANSI C 89
+ minimum of 509 character string literals. */
static const char * const usage_msg[] = {
-"-0[octal] specify record separator (\\0, if no argument)",
-"-a autosplit mode with -n or -p (splits $_ into @F)",
-"-C[number/list] enables the listed Unicode features",
-"-c check syntax only (runs BEGIN and CHECK blocks)",
-"-d[:debugger] run program under debugger",
-"-D[number/list] set debugging flags (argument is a bit mask or alphabets)",
-"-e program one line of program (several -e's allowed, omit programfile)",
-"-E program like -e, but enables all optional features",
-"-f don't do $sitelib/sitecustomize.pl at startup",
-"-F/pattern/ split() pattern for -a switch (//'s are optional)",
-"-i[extension] edit <> files in place (makes backup if extension supplied)",
-"-Idirectory specify @INC/#include directory (several -I's allowed)",
-"-l[octal] enable line ending processing, specifies line terminator",
-"-[mM][-]module execute \"use/no module...\" before executing program",
-"-n assume \"while (<>) { ... }\" loop around program",
-"-p assume loop like -n but print line also, like sed",
-"-s enable rudimentary parsing for switches after programfile",
-"-S look for programfile using PATH environment variable",
-"-t enable tainting warnings",
-"-T enable tainting checks",
-"-u dump core after parsing program",
-"-U allow unsafe operations",
-"-v print version, subversion (includes VERY IMPORTANT perl info)",
-"-V[:variable] print configuration summary (or a single Config.pm variable)",
-"-w enable many useful warnings (RECOMMENDED)",
-"-W enable all warnings",
-"-x[directory] strip off text before #!perl line and perhaps cd to directory",
-"-X disable all warnings",
-"\n",
+" -0[octal] specify record separator (\\0, if no argument)\n"
+" -a autosplit mode with -n or -p (splits $_ into @F)\n"
+" -C[number/list] enables the listed Unicode features\n"
+" -c check syntax only (runs BEGIN and CHECK blocks)\n"
+" -d[:debugger] run program under debugger\n"
+" -D[number/list] set debugging flags (argument is a bit mask or alphabets)\n",
+" -e program one line of program (several -e's allowed, omit programfile)\n"
+" -E program like -e, but enables all optional features\n"
+" -f don't do $sitelib/sitecustomize.pl at startup\n"
+" -F/pattern/ split() pattern for -a switch (//'s are optional)\n"
+" -i[extension] edit <> files in place (makes backup if extension supplied)\n"
+" -Idirectory specify @INC/#include directory (several -I's allowed)\n",
+" -l[octal] enable line ending processing, specifies line terminator\n"
+" -[mM][-]module execute \"use/no module...\" before executing program\n"
+" -n assume \"while (<>) { ... }\" loop around program\n"
+" -p assume loop like -n but print line also, like sed\n"
+" -s enable rudimentary parsing for switches after programfile\n"
+" -S look for programfile using PATH environment variable\n",
+" -t enable tainting warnings\n"
+" -T enable tainting checks\n"
+" -u dump core after parsing program\n"
+" -U allow unsafe operations\n"
+" -v print version, patchlevel and license\n"
+" -V[:variable] print configuration summary (or a single Config.pm variable)\n",
+" -w enable many useful warnings\n"
+" -W enable all warnings\n"
+" -x[directory] ignore text before #!perl line (optionally cd to directory)\n"
+" -X disable all warnings\n"
+" \n"
+"Run 'perldoc perl' for more help with Perl.\n\n",
NULL
};
const char * const *p = usage_msg;
+ PerlIO *out = PerlIO_stdout();
PERL_ARGS_ASSERT_USAGE;
- PerlIO_printf(PerlIO_stdout(),
- "\nUsage: %s [switches] [--] [programfile] [arguments]",
+ PerlIO_printf(out,
+ "\nUsage: %s [switches] [--] [programfile] [arguments]\n",
name);
while (*p)
- PerlIO_printf(PerlIO_stdout(), "\n %s", *p++);
-
- PerlIO_printf(PerlIO_stdout(),
- "Run 'perldoc perl' for more help with Perl.\n\n"
- );
+ PerlIO_puts(out, *p++);
}
/* convert a string of -D options (or digits) into an int.
Perl_get_debug_opts(pTHX_ const char **s, bool givehelp)
{
static const char * const usage_msgd[] = {
- " Debugging flag values: (see also -d)",
- " p Tokenizing and parsing (with v, displays parse stack)",
- " s Stack snapshots (with v, displays all stacks)",
- " l Context (loop) stack processing",
- " t Trace execution",
- " o Method and overloading resolution",
- " c String/numeric conversions",
- " P Print profiling info, source file input state",
- " m Memory and SV allocation",
- " f Format processing",
- " r Regular expression parsing and execution",
- " x Syntax tree dump",
- " u Tainting checks",
- " H Hash dump -- usurps values()",
- " X Scratchpad allocation",
- " D Cleaning up",
- " 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",
- " v Verbose: use in conjunction with other flags",
- " C Copy On Write",
- " A Consistency checks on internal structures",
- " q quiet - currently only suppresses the 'EXECUTING' message",
- " M trace smart match resolution",
- " B dump suBroutine definitions, including special Blocks like BEGIN",
+ " Debugging flag values: (see also -d)\n"
+ " p Tokenizing and parsing (with v, displays parse stack)\n"
+ " s Stack snapshots (with v, displays all stacks)\n"
+ " l Context (loop) stack processing\n"
+ " t Trace execution\n"
+ " o Method and overloading resolution\n",
+ " c String/numeric conversions\n"
+ " P Print profiling info, source file input state\n"
+ " m Memory and SV allocation\n"
+ " f Format processing\n"
+ " r Regular expression parsing and execution\n"
+ " x Syntax tree dump\n",
+ " u Tainting checks\n"
+ " H Hash dump -- usurps values()\n"
+ " X Scratchpad allocation\n"
+ " D Cleaning up\n"
+ " T Tokenising\n"
+ " R Include reference counts of dumped variables (eg when using -Ds)\n",
+ " J Do not s,t,P-debug (Jump over) opcodes within package DB\n"
+ " v Verbose: use in conjunction with other flags\n"
+ " C Copy On Write\n"
+ " A Consistency checks on internal structures\n"
+ " q quiet - currently only suppresses the 'EXECUTING' message\n"
+ " M trace smart match resolution\n"
+ " B dump suBroutine definitions, including special Blocks like BEGIN\n",
NULL
};
int i = 0;
}
else if (givehelp) {
const char *const *p = usage_msgd;
- while (*p) PerlIO_printf(PerlIO_stdout(), "%s\n", *p++);
+ while (*p) PerlIO_puts(PerlIO_stdout(), *p++);
}
# ifdef EBCDIC
if ((i & DEBUG_p_FLAG) && ckWARN_d(WARN_DEBUGGING))
/* 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");
/* skip forward in input to the real script? */
- while (PL_doextract) {
+ do {
if ((s = sv_gets(linestr_sv, rsfp, 0)) == NULL)
Perl_croak(aTHX_ "No Perl script found in input\n");
s2 = s;
- if (*s == '#' && s[1] == '!' && ((s = instr(s,"perl")) || (s = instr(s2,"PERL")))) {
- PerlIO_ungetc(rsfp, '\n'); /* to keep line count right */
- PL_doextract = FALSE;
- while (*s && !(isSPACE (*s) || *s == '#')) s++;
- s2 = s;
- while (*s == ' ' || *s == '\t') s++;
- if (*s++ == '-') {
- while (isDIGIT(s2[-1]) || s2[-1] == '-' || s2[-1] == '.'
- || s2[-1] == '_') s2--;
- if (strnEQ(s2-4,"perl",4))
- while ((s = moreswitches(s)))
- ;
- }
- }
+ } while (!(*s == '#' && s[1] == '!' && ((s = instr(s,"perl")) || (s = instr(s2,"PERL")))));
+ PerlIO_ungetc(rsfp, '\n'); /* to keep line count right */
+ while (*s && !(isSPACE (*s) || *s == '#')) s++;
+ s2 = s;
+ while (*s == ' ' || *s == '\t') s++;
+ if (*s++ == '-') {
+ while (isDIGIT(s2[-1]) || s2[-1] == '-' || s2[-1] == '.'
+ || s2[-1] == '_') s2--;
+ if (strnEQ(s2-4,"perl",4))
+ while ((s = moreswitches(s)))
+ ;
}
}
}
void
+Perl_init_dbargs(pTHX)
+{
+ AV *const args = PL_dbargs = GvAV(gv_AVadd((gv_fetchpvs("DB::args",
+ GV_ADDMULTI,
+ SVt_PVAV))));
+
+ if (AvREAL(args)) {
+ /* Someone has already created it.
+ It might have entries, and if we just turn off AvREAL(), they will
+ "leak" until global destruction. */
+ av_clear(args);
+ }
+ AvREAL_off(PL_dbargs); /* XXX should be REIFY (see av.h) */
+}
+
+void
Perl_init_debugger(pTHX)
{
dVAR;
HV * const ostash = PL_curstash;
PL_curstash = PL_debstash;
- PL_dbargs = GvAV(gv_AVadd((gv_fetchpvs("DB::args", GV_ADDMULTI,
- SVt_PVAV))));
- AvREAL_off(PL_dbargs);
+
+ Perl_init_dbargs(aTHX);
PL_DBgv = gv_fetchpvs("DB::DB", GV_ADDMULTI, SVt_PVGV);
PL_DBline = gv_fetchpvs("DB::dbline", GV_ADDMULTI, SVt_PVAV);
PL_DBsub = gv_HVadd(gv_fetchpvs("DB::sub", GV_ADDMULTI, SVt_PVHV));
PL_DBsingle = GvSV((gv_fetchpvs("DB::single", GV_ADDMULTI, SVt_PV)));
- sv_setiv(PL_DBsingle, 0);
+ if (!SvIOK(PL_DBsingle))
+ sv_setiv(PL_DBsingle, 0);
PL_DBtrace = GvSV((gv_fetchpvs("DB::trace", GV_ADDMULTI, SVt_PV)));
- sv_setiv(PL_DBtrace, 0);
+ if (!SvIOK(PL_DBtrace))
+ sv_setiv(PL_DBtrace, 0);
PL_DBsignal = GvSV((gv_fetchpvs("DB::signal", GV_ADDMULTI, SVt_PV)));
- sv_setiv(PL_DBsignal, 0);
+ if (!SvIOK(PL_DBsignal))
+ sv_setiv(PL_DBsignal, 0);
PL_curstash = ostash;
}
Safefree(PL_savestack);
}
+void
+Perl_populate_isa(pTHX_ const char *name, STRLEN len, ...)
+{
+ GV *const gv = gv_fetchpvn(name, len, GV_ADD | GV_ADDMULTI, SVt_PVAV);
+ AV *const isa = GvAVn(gv);
+ va_list args;
+
+ PERL_ARGS_ASSERT_POPULATE_ISA;
+
+ if(AvFILLp(isa) != -1)
+ return;
+
+ /* NOTE: No support for tied ISA */
+
+ va_start(args, len);
+ do {
+ const char *const parent = va_arg(args, const char*);
+ size_t parent_len;
+
+ if (!parent)
+ break;
+ parent_len = va_arg(args, size_t);
+
+ /* Arguments are supplied with a trailing :: */
+ assert(parent_len > 2);
+ assert(parent[parent_len - 1] == ':');
+ assert(parent[parent_len - 2] == ':');
+ av_push(isa, newSVpvn(parent, parent_len - 2));
+ (void) gv_fetchpvn(parent, parent_len, GV_ADD, SVt_PVGV);
+ } while (1);
+ va_end(args);
+}
+
STATIC void
S_init_predump_symbols(pTHX)
dVAR;
GV *tmpgv;
IO *io;
- AV *isa;
sv_setpvs(get_sv("\"", GV_ADD), " ");
PL_ofsgv = (GV*)SvREFCNT_inc(gv_fetchpvs(",", GV_ADD|GV_NOTQUAL, SVt_PV));
so that code that does C<use IO::Handle>; will still work.
*/
- isa = get_av("IO::File::ISA", GV_ADD | GV_ADDMULTI);
- av_push(isa, newSVpvs("IO::Handle"));
- av_push(isa, newSVpvs("IO::Seekable"));
- av_push(isa, newSVpvs("Exporter"));
- (void) gv_fetchpvs("IO::Handle::", GV_ADD, SVt_PVGV);
- (void) gv_fetchpvs("IO::Seekable::", GV_ADD, SVt_PVGV);
- (void) gv_fetchpvs("Exporter::", GV_ADD, SVt_PVGV);
-
+ Perl_populate_isa(aTHX_ STR_WITH_LEN("IO::File::ISA"),
+ STR_WITH_LEN("IO::Handle::"),
+ STR_WITH_LEN("IO::Seekable::"),
+ STR_WITH_LEN("Exporter::"),
+ NULL);
PL_stdingv = gv_fetchpvs("STDIN", GV_ADD|GV_NOTQUAL, SVt_PVIO);
GvMULTI_on(PL_stdingv);
#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
(and not the architecture specific directories from $ENV{PERL5LIB}) */
/* Use the ~-expanded versions of APPLLIB (undocumented),
- ARCHLIB PRIVLIB SITEARCH SITELIB VENDORARCH and VENDORLIB
+ SITEARCH, SITELIB, VENDORARCH, VENDORLIB, ARCHLIB and PRIVLIB
*/
#ifdef APPLLIB_EXP
S_incpush_use_sep(aTHX_ STR_WITH_LEN(APPLLIB_EXP),
}
/* Use the ~-expanded versions of APPLLIB (undocumented),
- ARCHLIB PRIVLIB SITEARCH SITELIB VENDORARCH and VENDORLIB
+ SITELIB and VENDORLIB for older versions
*/
#ifdef APPLLIB_EXP
S_incpush_use_sep(aTHX_ STR_WITH_LEN(APPLLIB_EXP), INCPUSH_ADD_OLD_VERS
# 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;
https://perl5.git.perl.org / perl5.git / blobdiff