X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=perl.c;h=25cdcd6e4ba3f3cb3fa02b777ac28987d22a8424;hb=5e2fdd206cb74b2c46df0f9af010e310d95829a8;hp=969d78324467fc9a74095da2c086333cfb96a0ac;hpb=4b19af017623bfa3bb72bb164598a517f586e0d3;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/perl.c b/perl.c
index 969d783..25cdcd6 100644
--- a/perl.c
+++ b/perl.c
@@ -1,6 +1,6 @@
 /*    perl.c
  *
- *    Copyright (c) 1987-2000 Larry Wall
+ *    Copyright (c) 1987-2001 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.
@@ -58,6 +58,29 @@ static I32 read_e_script(pTHXo_ int idx, SV *buf_sv, int maxlen);
     } STMT_END
 #else
 #  if defined(USE_ITHREADS)
+
+/* this is called in parent before the fork() */
+void
+Perl_atfork_lock(void)
+{
+    /* locks must be held in locking order (if any) */
+#ifdef MYMALLOC
+    MUTEX_LOCK(&PL_malloc_mutex);
+#endif
+    OP_REFCNT_LOCK;
+}
+
+/* this is called in both parent and child after the fork() */
+void
+Perl_atfork_unlock(void)
+{
+    /* locks must be released in same order as in S_atfork_lock() */
+#ifdef MYMALLOC
+    MUTEX_UNLOCK(&PL_malloc_mutex);
+#endif
+    OP_REFCNT_UNLOCK;
+}
+
 #  define INIT_TLS_AND_INTERP \
     STMT_START {				\
 	if (!PL_curinterp) {			\
@@ -149,7 +172,6 @@ void
 perl_construct(pTHXx)
 {
 #ifdef USE_THREADS
-    int i;
 #ifndef FAKE_THREADS
     struct perl_thread *thr = NULL;
 #endif /* FAKE_THREADS */
@@ -157,7 +179,7 @@ perl_construct(pTHXx)
 
 #ifdef MULTIPLICITY
     init_interp();
-    PL_perl_destruct_level = 1; 
+    PL_perl_destruct_level = 1;
 #else
    if (PL_perl_destruct_level > 0)
        init_interp();
@@ -227,8 +249,8 @@ perl_construct(pTHXx)
 	 * space.  The other alternative would be to provide STDAUX and STDPRN
 	 * filehandles.
 	 */
-	(void)fclose(stdaux);
-	(void)fclose(stdprn);
+	(void)PerlIO_close(PerlIO_importFILE(stdaux, 0));
+	(void)PerlIO_close(PerlIO_importFILE(stdprn, 0));
 #endif
     }
 
@@ -253,9 +275,10 @@ perl_construct(pTHXx)
 	if (PERL_REVISION > 127 || PERL_VERSION > 127 || PERL_SUBVERSION > 127)
 	    SvGROW(PL_patchlevel, UTF8_MAXLEN*3+1);
 	s = (U8*)SvPVX(PL_patchlevel);
-	s = uv_to_utf8(s, (UV)PERL_REVISION);
-	s = uv_to_utf8(s, (UV)PERL_VERSION);
-	s = uv_to_utf8(s, (UV)PERL_SUBVERSION);
+	/* Build version strings using "native" characters */
+	s = uvchr_to_utf8(s, (UV)PERL_REVISION);
+	s = uvchr_to_utf8(s, (UV)PERL_VERSION);
+	s = uvchr_to_utf8(s, (UV)PERL_SUBVERSION);
 	*s = '\0';
 	SvCUR_set(PL_patchlevel, s - (U8*)SvPVX(PL_patchlevel));
 	SvPOK_on(PL_patchlevel);
@@ -283,7 +306,13 @@ perl_construct(pTHXx)
     PL_fdpid = newAV();			/* for remembering popen pids by fd */
     PL_modglobal = newHV();		/* pointers to per-interpreter module globals */
     PL_errors = newSVpvn("",0);
-
+#ifdef USE_ITHREADS
+        PL_regex_padav = newAV();
+#endif
+#ifdef USE_REENTRANT_API
+    New(31337, PL_reentrant_buffer,1, REBUF);
+    New(31337, PL_reentrant_buffer->tmbuff,1, struct tm);
+#endif
     ENTER;
 }
 
@@ -298,9 +327,7 @@ Shuts down a Perl interpreter.  See L<perlembed>.
 void
 perl_destruct(pTHXx)
 {
-    dTHR;
     int destruct_level;  /* 0=none, 1=full, 2=full with checks */
-    I32 last_sv_count;
     HV *hv;
 #ifdef USE_THREADS
     Thread t;
@@ -344,7 +371,7 @@ perl_destruct(pTHXx)
 	    DEBUG_S(PerlIO_printf(Perl_debug_log,
 				  "perl_destruct: detaching thread %p\n", t));
 	    ThrSETSTATE(t, THRf_R_DETACHED);
-	    /* 
+	    /*
 	     * We unlock threads_mutex and t->mutex in the opposite order
 	     * from which we locked them just so that DETACH won't
 	     * deadlock if it panics. It's only a breach of good style
@@ -377,6 +404,7 @@ perl_destruct(pTHXx)
     DEBUG_S(PerlIO_printf(Perl_debug_log, "perl_destruct: armageddon has arrived\n"));
     MUTEX_DESTROY(&PL_threads_mutex);
     COND_DESTROY(&PL_nthreads_cond);
+    PL_nthreads--;
 #endif /* !defined(FAKE_THREADS) */
 #endif /* USE_THREADS */
 
@@ -395,6 +423,7 @@ perl_destruct(pTHXx)
     LEAVE;
     FREETMPS;
 
+
     /* We must account for everything.  */
 
     /* Destroy the main CV and syntax tree */
@@ -409,6 +438,13 @@ perl_destruct(pTHXx)
     PL_main_cv = Nullcv;
     PL_dirty = TRUE;
 
+    /* Tell PerlIO we are about to tear things apart in case
+       we have layers which are using resources that should
+       be cleaned up now.
+     */
+
+    PerlIO_destruct(aTHX);
+
     if (PL_sv_objcount) {
 	/*
 	 * Try to destruct global references.  We do this first so that the
@@ -433,11 +469,26 @@ perl_destruct(pTHXx)
     if (destruct_level == 0){
 
 	DEBUG_P(debprofdump());
-    
+
 	/* The exit() function will do everything that needs doing. */
 	return;
     }
 
+    /* jettison our possibly duplicated environment */
+
+#ifdef USE_ENVIRON_ARRAY
+    if (environ != PL_origenviron) {
+	I32 i;
+
+	for (i = 0; environ[i]; i++)
+	    safesysfree(environ[i]);
+	/* Must use safesysfree() when working with environ. */
+	safesysfree(environ);		
+
+	environ = PL_origenviron;
+    }
+#endif
+
     /* loosen bonds of global variables */
 
     if(PL_rsfp) {
@@ -473,11 +524,11 @@ perl_destruct(pTHXx)
 
     /* magical thingies */
 
-    Safefree(PL_ofs);		/* $, */
-    PL_ofs = Nullch;
+    SvREFCNT_dec(PL_ofs_sv);	/* $, */
+    PL_ofs_sv = Nullsv;
 
-    Safefree(PL_ors);		/* $\ */
-    PL_ors = Nullch;
+    SvREFCNT_dec(PL_ors_sv);	/* $\ */
+    PL_ors_sv = Nullsv;
 
     SvREFCNT_dec(PL_rs);	/* $/ */
     PL_rs = Nullsv;
@@ -562,6 +613,7 @@ perl_destruct(pTHXx)
 #ifdef USE_LOCALE_NUMERIC
     Safefree(PL_numeric_name);
     PL_numeric_name = Nullch;
+    SvREFCNT_dec(PL_numeric_radix_sv);
 #endif
 
     /* clear utf8 character classes */
@@ -602,6 +654,9 @@ perl_destruct(pTHXx)
     if (!specialWARN(PL_compiling.cop_warnings))
 	SvREFCNT_dec(PL_compiling.cop_warnings);
     PL_compiling.cop_warnings = Nullsv;
+    if (!specialCopIO(PL_compiling.cop_io))
+	SvREFCNT_dec(PL_compiling.cop_io);
+    PL_compiling.cop_io = Nullsv;
 #ifdef USE_ITHREADS
     Safefree(CopFILE(&PL_compiling));
     CopFILE(&PL_compiling) = Nullch;
@@ -643,13 +698,13 @@ perl_destruct(pTHXx)
     }
 
     /* Now absolutely destruct everything, somehow or other, loops or no. */
-    last_sv_count = 0;
     SvFLAGS(PL_fdpid) |= SVTYPEMASK;		/* don't clean out pid table now */
     SvFLAGS(PL_strtab) |= SVTYPEMASK;		/* don't clean out strtab now */
-    while (PL_sv_count != 0 && PL_sv_count != last_sv_count) {
-	last_sv_count = PL_sv_count;
-	sv_clean_all();
-    }
+
+    /* the 2 is for PL_fdpid and PL_strtab */
+    while (PL_sv_count > 2 && sv_clean_all())
+	;
+
     SvFLAGS(PL_fdpid) &= ~SVTYPEMASK;
     SvFLAGS(PL_fdpid) |= SVt_PVAV;
     SvFLAGS(PL_strtab) &= ~SVTYPEMASK;
@@ -694,6 +749,11 @@ perl_destruct(pTHXx)
     }
     SvREFCNT_dec(PL_strtab);
 
+#ifdef USE_ITHREADS
+    /* free the pointer table used for cloning */
+    ptr_table_free(PL_ptr_table);
+#endif
+
     /* free special SVs */
 
     SvREFCNT(&PL_sv_yes) = 0;
@@ -721,9 +781,11 @@ perl_destruct(pTHXx)
     Safefree(PL_op_mask);
     Safefree(PL_psig_ptr);
     Safefree(PL_psig_name);
+    Safefree(PL_bitcount);
+    Safefree(PL_psig_pend);
     nuke_stacks();
     PL_hints = 0;		/* Reset hints. Should hints be per-interpreter ? */
-    
+
     DEBUG_P(debprofdump());
 #ifdef USE_THREADS
     MUTEX_DESTROY(&PL_strtab_mutex);
@@ -743,6 +805,11 @@ perl_destruct(pTHXx)
     PL_thrsv = Nullsv;
 #endif /* USE_THREADS */
 
+#ifdef USE_REENTRANT_API
+    Safefree(PL_reentrant_buffer->tmbuff);
+    Safefree(PL_reentrant_buffer);
+#endif
+
     sv_free_arenas();
 
     /* As the absolutely last thing, free the non-arena SV for mess() */
@@ -754,7 +821,8 @@ perl_destruct(pTHXx)
 	    MAGIC* moremagic;
 	    for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) {
 		moremagic = mg->mg_moremagic;
-		if (mg->mg_ptr && mg->mg_type != 'g' && mg->mg_len >= 0)
+		if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global
+						&& mg->mg_len >= 0)
 		    Safefree(mg->mg_ptr);
 		Safefree(mg);
 	    }
@@ -782,10 +850,28 @@ perl_free(pTHXx)
 #if defined(PERL_OBJECT)
     PerlMem_free(this);
 #else
-#  if defined(PERL_IMPLICIT_SYS) && defined(WIN32)
-    void *host = w32_internal_host;
+#  if defined(WIN32) || defined(NETWARE)
+#  if defined(PERL_IMPLICIT_SYS)
+    #ifdef NETWARE
+		void *host = nw_internal_host;
+	#else
+		void *host = w32_internal_host;
+	#endif
+	#ifndef NETWARE
+	if (PerlProc_lasthost()) {
+	PerlIO_cleanup();
+	}
+	#endif
+    PerlMem_free(aTHXx);
+	#ifdef NETWARE
+		nw5_delete_internal_host(host);
+	#else
+		win32_delete_internal_host(host);
+	#endif
+#else
+    PerlIO_cleanup();
     PerlMem_free(aTHXx);
-    win32_delete_internal_host(host);
+#endif
 #  else
     PerlMem_free(aTHXx);
 #  endif
@@ -812,7 +898,6 @@ Tells a Perl interpreter to parse a Perl script.  See L<perlembed>.
 int
 perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env)
 {
-    dTHR;
     I32 oldscope;
     int ret;
     dJMPENV;
@@ -835,7 +920,7 @@ setuid perl scripts securely.\n");
 
     PL_origargv = argv;
     PL_origargc = argc;
-#ifndef VMS  /* VMS doesn't have environ array */
+#ifdef  USE_ENVIRON_ARRAY
     PL_origenviron = environ;
 #endif
 
@@ -914,7 +999,6 @@ S_vparse_body(pTHX_ va_list args)
 STATIC void *
 S_parse_body(pTHX_ char **env, XSINIT_t xsinit)
 {
-    dTHR;
     int argc = PL_origargc;
     char **argv = PL_origargv;
     char *scriptname = NULL;
@@ -924,7 +1008,7 @@ S_parse_body(pTHX_ char **env, XSINIT_t xsinit)
     AV* comppadlist;
     register SV *sv;
     register char *s;
-    char *cddir = Nullch;
+    char *popts, *cddir = Nullch;
 
     sv_setpvn(PL_linestr,"",0);
     sv = newSVpvn("",0);		/* first used for -I flags */
@@ -985,7 +1069,7 @@ S_parse_body(pTHX_ char **env, XSINIT_t xsinit)
 #ifdef MACOS_TRADITIONAL
 	    /* ignore -e for Dev:Pseudo argument */
 	    if (argv[1] && !strcmp(argv[1], "Dev:Pseudo"))
-	    	break; 
+	    	break;
 #endif
 	    if (PL_euid != PL_uid || PL_egid != PL_gid)
 		Perl_croak(aTHX_ "No -e allowed in setuid scripts");
@@ -1102,7 +1186,12 @@ S_parse_body(pTHX_ char **env, XSINIT_t xsinit)
 #endif
 		sv_catpv(PL_Sv, "; \
 $\"=\"\\n    \"; \
-@env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; \
+@env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; ");
+#ifdef __CYGWIN__
+		sv_catpv(PL_Sv,"\
+push @env, \"CYGWIN=\\\"$ENV{CYGWIN}\\\"\";");
+#endif
+		sv_catpv(PL_Sv, "\
 print \"  \\%ENV:\\n    @env\\n\" if @env; \
 print \"  \\@INC:\\n    @INC\\n\";");
 	    }
@@ -1149,14 +1238,16 @@ print \"  \\@INC:\\n    @INC\\n\";");
 #ifndef SECURE_INTERNAL_GETENV
         !PL_tainting &&
 #endif
-	(s = PerlEnv_getenv("PERL5OPT")))
+	(popts = PerlEnv_getenv("PERL5OPT")))
     {
+    	s = savepv(popts);
 	while (isSPACE(*s))
 	    s++;
 	if (*s == '-' && *(s+1) == 'T')
 	    PL_tainting = TRUE;
 	else {
 	    while (s && *s) {
+	        char *d;
 		while (isSPACE(*s))
 		    s++;
 		if (*s == '-') {
@@ -1164,11 +1255,18 @@ print \"  \\@INC:\\n    @INC\\n\";");
 		    if (isSPACE(*s))
 			continue;
 		}
+		d = s;
 		if (!*s)
 		    break;
 		if (!strchr("DIMUdmw", *s))
 		    Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s);
-		s = moreswitches(s);
+		while (++s && *s) {
+		    if (isSPACE(*s)) {
+		        *s++ = '\0';
+			break;
+		    }
+		}
+		moreswitches(d);
 	    }
 	}
     }
@@ -1247,6 +1345,7 @@ print \"  \\@INC:\\n    @INC\\n\";");
     av_store(comppadlist, 1, (SV*)PL_comppad);
     CvPADLIST(PL_compcv) = comppadlist;
 
+    boot_core_PerlIO();
     boot_core_UNIVERSAL();
 #ifndef PERL_MICRO
     boot_core_xsutils();
@@ -1255,14 +1354,18 @@ print \"  \\@INC:\\n    @INC\\n\";");
     if (xsinit)
 	(*xsinit)(aTHXo);	/* in case linked C routines want magical variables */
 #ifndef PERL_MICRO
-#if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__)
+#if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(EPOC)
     init_os_extras();
 #endif
 #endif
 
 #ifdef USE_SOCKS
+#   ifdef HAS_SOCKS5_INIT
+    socks5_init(argv[0]);
+#   else
     SOCKSinit(argv[0]);
-#endif    
+#   endif
+#endif
 
     init_predump_symbols();
     /* init_postdump_symbols not currently designed to be called */
@@ -1341,7 +1444,6 @@ Tells a Perl interpreter to run.  See L<perlembed>.
 int
 perl_run(pTHXx)
 {
-    dTHR;
     I32 oldscope;
     int ret = 0;
     dJMPENV;
@@ -1409,8 +1511,6 @@ S_vrun_body(pTHX_ va_list args)
 STATIC void *
 S_run_body(pTHX_ I32 oldscope)
 {
-    dTHR;
-
     DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n",
                     PL_sawampersand ? "Enabling" : "Omitting"));
 
@@ -1429,7 +1529,7 @@ S_run_body(pTHX_ I32 oldscope)
 	    my_exit(0);
 	}
 	if (PERLDB_SINGLE && PL_DBsingle)
-	    sv_setiv(PL_DBsingle, 1); 
+	    sv_setiv(PL_DBsingle, 1);
 	if (PL_initav)
 	    call_list(oldscope, PL_initav);
     }
@@ -1469,10 +1569,8 @@ Perl_get_sv(pTHX_ const char *name, I32 create)
 #ifdef USE_THREADS
     if (name[1] == '\0' && !isALPHA(name[0])) {
 	PADOFFSET tmp = find_threadsv(name);
-    	if (tmp != NOT_IN_PAD) {
-	    dTHR;
+    	if (tmp != NOT_IN_PAD)
 	    return THREADSV(tmp);
-	}
     }
 #endif /* USE_THREADS */
     gv = gv_fetchpv(name, create, SVt_PV);
@@ -1564,7 +1662,7 @@ Performs a callback to the specified Perl sub.  See L<perlcall>.
 
 I32
 Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv)
-              
+
           		/* See G_* flags in cop.h */
                      	/* null terminated arg list */
 {
@@ -1632,7 +1730,7 @@ Perl_call_sv(pTHX_ SV *sv, I32 flags)
     LOGOP myop;		/* fake syntax tree node */
     UNOP method_op;
     I32 oldmark;
-    I32 retval;
+    volatile I32 retval = 0;
     I32 oldscope;
     bool oldcatch = CATCH_GET;
     int ret;
@@ -1689,15 +1787,15 @@ Perl_call_sv(pTHX_ SV *sv, I32 flags)
 	{
 	    register PERL_CONTEXT *cx;
 	    I32 gimme = GIMME_V;
-	    
+	
 	    ENTER;
 	    SAVETMPS;
-	    
+	
 	    push_return(Nullop);
 	    PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp);
 	    PUSHEVAL(cx, 0, 0);
 	    PL_eval_root = PL_op;             /* Only needed so that goto works right. */
-	    
+	
 	    PL_in_eval = EVAL_INEVAL;
 	    if (flags & G_KEEPERR)
 		PL_in_eval |= EVAL_KEEPERR;
@@ -1792,8 +1890,6 @@ S_vcall_body(pTHX_ va_list args)
 STATIC void
 S_call_body(pTHX_ OP *myop, int is_eval)
 {
-    dTHR;
-
     if (PL_op == myop) {
 	if (is_eval)
 	    PL_op = Perl_pp_entereval(aTHX);	/* this doesn't do a POPMARK */
@@ -1816,13 +1912,13 @@ Tells Perl to C<eval> the string in the SV.
 
 I32
 Perl_eval_sv(pTHX_ SV *sv, I32 flags)
-       
+
           		/* See G_* flags in cop.h */
 {
     dSP;
     UNOP myop;		/* fake syntax tree node */
-    I32 oldmark = SP - PL_stack_base;
-    I32 retval;
+    volatile I32 oldmark = SP - PL_stack_base;
+    volatile I32 retval = 0;
     I32 oldscope;
     int ret;
     OP* oldop = PL_op;
@@ -1940,10 +2036,11 @@ Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error)
 /*
 =for apidoc p||require_pv
 
-Tells Perl to C<require> a module.
+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
+implemented that way; consider using Perl_load_module instead.
 
-=cut
-*/
+=cut */
 
 void
 Perl_require_pv(pTHX_ const char *pv)
@@ -1967,14 +2064,14 @@ Perl_magicname(pTHX_ char *sym, char *name, I32 namlen)
     register GV *gv;
 
     if ((gv = gv_fetchpv(sym,TRUE, SVt_PV)))
-	sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen);
+	sv_magic(GvSV(gv), (SV*)gv, PERL_MAGIC_sv, name, namlen);
 }
 
 STATIC void
 S_usage(pTHX_ char *name)		/* XXX move this out into a module ? */
 {
     /* This message really ought to be max 23 lines.
-     * Removed -h because the user already knows that opton. Others? */
+     * Removed -h because the user already knows that option. Others? */
 
     static char *usage_msg[] = {
 "-0[octal]       specify record separator (\\0, if no argument)",
@@ -2020,13 +2117,12 @@ NULL
 char *
 Perl_moreswitches(pTHX_ char *s)
 {
-    I32 numlen;
+    STRLEN numlen;
     U32 rschar;
 
     switch (*s) {
     case '0':
     {
-	dTHR;
 	numlen = 0;			/* disallow underscores */
 	rschar = (U32)scan_oct(s, 4, &numlen);
 	SvREFCNT_dec(PL_nrs);
@@ -2060,9 +2156,25 @@ Perl_moreswitches(pTHX_ char *s)
     case 'd':
 	forbid_setid("-d");
 	s++;
-	if (*s == ':' || *s == '=')  {
-	    my_setenv("PERL5DB", Perl_form(aTHX_ "use Devel::%s;", ++s));
+	/* The following permits -d:Mod to accepts arguments following an =
+	   in the fashion that -MSome::Mod does. */
+	if (*s == ':' || *s == '=') {
+	    char *start;
+	    SV *sv;
+	    sv = newSVpv("use Devel::", 0);
+	    start = ++s;
+	    /* We now allow -d:Module=Foo,Bar */
+	    while(isALNUM(*s) || *s==':') ++s;
+	    if (*s != '=')
+		sv_catpv(sv, start);
+	    else {
+		sv_catpvn(sv, start, s-start);
+		sv_catpv(sv, " split(/,/,q{");
+		sv_catpv(sv, ++s);
+		sv_catpv(sv,    "})");
+	    }
 	    s += strlen(s);
+	    my_setenv("PERL5DB", SvPV(sv, PL_na));
 	}
 	if (!PL_perldb) {
 	    PL_perldb = PERLDB_ALL;
@@ -2074,7 +2186,8 @@ Perl_moreswitches(pTHX_ char *s)
 #ifdef DEBUGGING
 	forbid_setid("-D");
 	if (isALPHA(s[1])) {
-	    static char debopts[] = "psltocPmfrxuLHXDS";
+	    /* if adding extra options, remember to update DEBUG_MASK */
+	    static char debopts[] = "psltocPmfrxuLHXDSTR";
 	    char *d;
 
 	    for (s++; *s && (d = strchr(debopts,*s)); s++)
@@ -2084,9 +2197,8 @@ Perl_moreswitches(pTHX_ char *s)
 	    PL_debug = atoi(s+1);
 	    for (s++; isDIGIT(*s); s++) ;
 	}
-	PL_debug |= 0x80000000;
+	PL_debug |= DEBUG_TOP_FLAG;
 #else
-	dTHR;
 	if (ckWARN_d(WARN_DEBUGGING))
 	    Perl_warner(aTHX_ WARN_DEBUGGING,
 	           "Recompile perl with -DDEBUGGING to use -D switch\n");
@@ -2096,7 +2208,7 @@ Perl_moreswitches(pTHX_ char *s)
 	return s;
     }	
     case 'h':
-	usage(PL_origargv[0]);    
+	usage(PL_origargv[0]);
 	PerlProc_exit(0);
     case 'i':
 	if (PL_inplace)
@@ -2138,24 +2250,23 @@ Perl_moreswitches(pTHX_ char *s)
     case 'l':
 	PL_minus_l = TRUE;
 	s++;
-	if (PL_ors)
-	    Safefree(PL_ors);
+	if (PL_ors_sv) {
+	    SvREFCNT_dec(PL_ors_sv);
+	    PL_ors_sv = Nullsv;
+	}
 	if (isDIGIT(*s)) {
-	    PL_ors = savepv("\n");
-	    PL_orslen = 1;
+	    PL_ors_sv = newSVpvn("\n",1);
 	    numlen = 0;			/* disallow underscores */
-	    *PL_ors = (char)scan_oct(s, 3 + (*s == '0'), &numlen);
+	    *SvPVX(PL_ors_sv) = (char)scan_oct(s, 3 + (*s == '0'), &numlen);
 	    s += numlen;
 	}
 	else {
-	    dTHR;
 	    if (RsPARA(PL_nrs)) {
-		PL_ors = "\n\n";
-		PL_orslen = 2;
+		PL_ors_sv = newSVpvn("\n\n",2);
+	    }
+	    else {
+		PL_ors_sv = newSVsv(PL_nrs);
 	    }
-	    else
-		PL_ors = SvPV(PL_nrs, PL_orslen);
-	    PL_ors = savepvn(PL_ors, PL_orslen);
 	}
 	return s;
     case 'M':
@@ -2227,9 +2338,22 @@ Perl_moreswitches(pTHX_ char *s)
 	s++;
 	return s;
     case 'v':
+#if !defined(DGUX)
 	PerlIO_printf(PerlIO_stdout(),
-		      Perl_form(aTHX_ "\nThis is perl, v%vd built for %s",
+		      Perl_form(aTHX_ "\nThis is perl, v%"VDf" built for %s",
 				PL_patchlevel, ARCHNAME));
+#else /* DGUX */
+/* Adjust verbose output as in the perl that ships with the DG/UX OS from EMC */
+	PerlIO_printf(PerlIO_stdout(),
+			Perl_form(aTHX_ "\nThis is perl, version %vd\n", PL_patchlevel));
+	PerlIO_printf(PerlIO_stdout(),
+			Perl_form(aTHX_ "        built under %s at %s %s\n",
+					OSNAME, __DATE__, __TIME__));
+	PerlIO_printf(PerlIO_stdout(),
+			Perl_form(aTHX_ "        OS Specific Release: %s\n",
+					OSVERS));
+#endif /* !DGUX */
+
 #if defined(LOCAL_PATCH_COUNT)
 	if (LOCAL_PATCH_COUNT > 0)
 	    PerlIO_printf(PerlIO_stdout(),
@@ -2240,10 +2364,10 @@ Perl_moreswitches(pTHX_ char *s)
 #endif
 
 	PerlIO_printf(PerlIO_stdout(),
-		      "\n\nCopyright 1987-2000, Larry Wall\n");
+		      "\n\nCopyright 1987-2001, Larry Wall\n");
 #ifdef MACOS_TRADITIONAL
 	PerlIO_printf(PerlIO_stdout(),
-		      "\nMacOS port Copyright (c) 1991-2000, Matthias Neeracher\n");
+		      "\nMac OS port Copyright (c) 1991-2001, Matthias Neeracher\n");
 #endif
 #ifdef MSDOS
 	PerlIO_printf(PerlIO_stdout(),
@@ -2269,7 +2393,7 @@ Perl_moreswitches(pTHX_ char *s)
 #endif
 #ifdef MPE
 	PerlIO_printf(PerlIO_stdout(),
-		      "MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-1999\n");
+		      "MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-2001\n");
 #endif
 #ifdef OEMVS
 	PerlIO_printf(PerlIO_stdout(),
@@ -2301,23 +2425,23 @@ Perl_moreswitches(pTHX_ char *s)
 	PerlIO_printf(PerlIO_stdout(),
 		      "\n\
 Perl may be copied only under the terms of either the Artistic License or the\n\
-GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n\
+GNU General Public License, which may be found in the Perl 5 source kit.\n\n\
 Complete documentation for Perl, including FAQ lists, should be found on\n\
 this system using `man perl' or `perldoc perl'.  If you have access to the\n\
 Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n");
 	PerlProc_exit(0);
     case 'w':
 	if (! (PL_dowarn & G_WARN_ALL_MASK))
-	    PL_dowarn |= G_WARN_ON; 
+	    PL_dowarn |= G_WARN_ON;
 	s++;
 	return s;
     case 'W':
-	PL_dowarn = G_WARN_ALL_ON|G_WARN_ON; 
+	PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
 	PL_compiling.cop_warnings = pWARN_ALL ;
 	s++;
 	return s;
     case 'X':
-	PL_dowarn = G_WARN_ALL_OFF; 
+	PL_dowarn = G_WARN_ALL_OFF;
 	PL_compiling.cop_warnings = pWARN_NONE ;
 	s++;
 	return s;
@@ -2463,7 +2587,6 @@ S_init_interp(pTHX)
 STATIC void
 S_init_main_stash(pTHX)
 {
-    dTHR;
     GV *gv;
 
     /* Note that strtab is a rather special HV.  Assumptions are made
@@ -2475,7 +2598,7 @@ S_init_main_stash(pTHX)
 #endif
     HvSHAREKEYS_off(PL_strtab);			/* mandatory */
     hv_ksplit(PL_strtab, 512);
-    
+
     PL_curstash = PL_defstash = newHV();
     PL_curstname = newSVpvn("main",4);
     gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
@@ -2507,8 +2630,6 @@ S_init_main_stash(pTHX)
 STATIC void
 S_open_script(pTHX_ char *scriptname, bool dosearch, SV *sv, int *fdscript)
 {
-    dTHR;
-
     *fdscript = -1;
 
     if (PL_e_script) {
@@ -2558,6 +2679,9 @@ S_open_script(pTHX_ char *scriptname, bool dosearch, SV *sv, int *fdscript)
 	sv_catpvn(sv, "-I", 2);
 	sv_catpv(sv,PRIVLIB_EXP);
 
+	DEBUG_P(PerlIO_printf(Perl_debug_log,
+			      "PL_preprocess: scriptname=\"%s\", cpp=\"%s\", sv=\"%s\", CPPMINUS=\"%s\"\n",
+			      scriptname, SvPVX (cpp), SvPVX (sv), CPPMINUS));
 #if defined(MSDOS) || defined(WIN32)
 	Perl_sv_setpvf(aTHX_ cmd, "\
 sed %s -e \"/^[^#]/b\" \
@@ -2661,8 +2785,14 @@ sed %s -e \"/^[^#]/b\" \
 	}
 #endif
 #endif
+#ifdef IAMSUID
+	errno = EPERM;
+	Perl_croak(aTHX_ "Can't open perl script: %s\n",
+		   Strerror(errno));
+#else
 	Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n",
 		   CopFILE(PL_curcop), Strerror(errno));
+#endif
     }
 }
 
@@ -2698,7 +2828,7 @@ S_fd_on_nosuid_fs(pTHX_ int fd)
     check_okay = fstatvfs(fd, &stfs) == 0;
     on_nosuid  = check_okay && (stfs.f_flag  & ST_NOSUID);
 #   endif /* fstatvfs */
- 
+
 #   if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
         defined(PERL_MOUNT_NOSUID)	&& \
         defined(HAS_FSTATFS) 		&& \
@@ -2768,7 +2898,7 @@ S_fd_on_nosuid_fs(pTHX_ int fd)
         fclose(mtab);
 #   endif /* getmntent+hasmntopt */
 
-    if (!check_okay) 
+    if (!check_okay)
 	Perl_croak(aTHX_ "Can't check filesystem of script \"%s\" for nosuid", PL_origfilename);
     return on_nosuid;
 }
@@ -2802,7 +2932,6 @@ S_validate_suid(pTHX_ char *validarg, char *scriptname, int fdscript)
      */
 
 #ifdef DOSUID
-    dTHR;
     char *s, *s2;
 
     if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0)	/* normal stat is insecure */
@@ -2851,16 +2980,6 @@ S_validate_suid(pTHX_ char *validarg, char *scriptname, int fdscript)
 	    if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
 		tmpstatbuf.st_ino != PL_statbuf.st_ino) {
 		(void)PerlIO_close(PL_rsfp);
-		if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) {	/* heh, heh */
-		    PerlIO_printf(PL_rsfp,
-"User %"Uid_t_f" tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\
-(Filename of set-id script was %s, uid %"Uid_t_f" gid %"Gid_t_f".)\n\nSincerely,\nperl\n",
-			PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino,
-			(long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino,
-			CopFILE(PL_curcop),
-			PL_statbuf.st_uid, PL_statbuf.st_gid);
-		    (void)PerlProc_pclose(PL_rsfp);
-		}
 		Perl_croak(aTHX_ "Permission denied\n");
 	    }
 	    if (
@@ -3010,7 +3129,6 @@ FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
 #else /* !DOSUID */
     if (PL_euid != PL_uid || PL_egid != PL_gid) {	/* (suidperl doesn't exist, in fact) */
 #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
-	dTHR;
 	PerlLIO_fstat(PerlIO_fileno(PL_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)
 	    ||
@@ -3034,8 +3152,8 @@ S_find_beginning(pTHX)
 
     forbid_setid("-x");
 #ifdef MACOS_TRADITIONAL
-    /* Since the Mac OS does not honor !# arguments for us, we do it ourselves */
-    
+    /* Since the Mac OS does not honor #! arguments for us, we do it ourselves */
+
     while (PL_doextract || gMacPerl_AlwaysExtract) {
 	if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch) {
 	    if (!gMacPerl_AlwaysExtract)
@@ -3049,7 +3167,7 @@ S_find_beginning(pTHX)
 		
 	    /* Pater peccavi, file does not have #! */
 	    PerlIO_rewind(PL_rsfp);
-	    
+	
 	    break;
 	}
 #else
@@ -3057,7 +3175,8 @@ S_find_beginning(pTHX)
 	if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
 	    Perl_croak(aTHX_ "No Perl script found in input\n");
 #endif
-	if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) {
+	s2 = s;
+	if (*s == '#' && s[1] == '!' && ((s = instr(s,"perl")) || (s = instr(s2,"PERL")))) {
 	    PerlIO_ungetc(PL_rsfp, '\n');		/* to keep line count right */
 	    PL_doextract = FALSE;
 	    while (*s && !(isSPACE (*s) || *s == '#')) s++;
@@ -3070,6 +3189,9 @@ S_find_beginning(pTHX)
 		    while ((s = moreswitches(s)))
 			;
 	    }
+#ifdef MACOS_TRADITIONAL
+	    break;
+#endif
 	}
     }
 }
@@ -3101,7 +3223,6 @@ S_forbid_setid(pTHX_ char *s)
 void
 Perl_init_debugger(pTHX)
 {
-    dTHR;
     HV *ostash = PL_curstash;
 
     PL_curstash = PL_debstash;
@@ -3112,11 +3233,11 @@ Perl_init_debugger(pTHX)
     PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV));
     sv_upgrade(GvSV(PL_DBsub), SVt_IV);	/* IVX accessed if PERLDB_SUB_NN */
     PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV)));
-    sv_setiv(PL_DBsingle, 0); 
+    sv_setiv(PL_DBsingle, 0);
     PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV)));
-    sv_setiv(PL_DBtrace, 0); 
+    sv_setiv(PL_DBtrace, 0);
     PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV)));
-    sv_setiv(PL_DBsignal, 0); 
+    sv_setiv(PL_DBsignal, 0);
     PL_curstash = ostash;
 }
 
@@ -3169,7 +3290,6 @@ Perl_init_stacks(pTHX)
 STATIC void
 S_nuke_stacks(pTHX)
 {
-    dTHR;
     while (PL_curstackinfo->si_next)
 	PL_curstackinfo = PL_curstackinfo->si_next;
     while (PL_curstackinfo) {
@@ -3206,7 +3326,6 @@ S_init_lexer(pTHX)
 STATIC void
 S_init_predump_symbols(pTHX)
 {
-    dTHR;
     GV *tmpgv;
     IO *io;
 
@@ -3214,6 +3333,7 @@ S_init_predump_symbols(pTHX)
     PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
     GvMULTI_on(PL_stdingv);
     io = GvIOp(PL_stdingv);
+    IoTYPE(io) = IoTYPE_RDONLY;
     IoIFP(io) = PerlIO_stdin();
     tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
     GvMULTI_on(tmpgv);
@@ -3222,6 +3342,7 @@ S_init_predump_symbols(pTHX)
     tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
     GvMULTI_on(tmpgv);
     io = GvIOp(tmpgv);
+    IoTYPE(io) = IoTYPE_WRONLY;
     IoOFP(io) = IoIFP(io) = PerlIO_stdout();
     setdefout(tmpgv);
     tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
@@ -3231,6 +3352,7 @@ S_init_predump_symbols(pTHX)
     PL_stderrgv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
     GvMULTI_on(PL_stderrgv);
     io = GvIOp(PL_stderrgv);
+    IoTYPE(io) = IoTYPE_WRONLY;
     IoOFP(io) = IoIFP(io) = PerlIO_stderr();
     tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
     GvMULTI_on(tmpgv);
@@ -3246,10 +3368,13 @@ S_init_predump_symbols(pTHX)
 STATIC void
 S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env)
 {
-    dTHR;
     char *s;
     SV *sv;
     GV* tmpgv;
+#ifdef NEED_ENVIRON_DUP_FOR_MODIFY
+    char **dup_env_base = 0;
+    int dup_env_count = 0;
+#endif
 
     argc--,argv++;	/* skip name of script */
     if (PL_doswitches) {
@@ -3307,8 +3432,8 @@ S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register
 	HV *hv;
 	GvMULTI_on(PL_envgv);
 	hv = GvHVn(PL_envgv);
-	hv_magic(hv, PL_envgv, 'E');
-#if !defined( VMS) && !defined(EPOC) && !defined(MACOS_TRADITIONAL) /* VMS doesn't have environ array */
+	hv_magic(hv, Nullgv, PERL_MAGIC_env);
+#ifdef USE_ENVIRON_ARRAY
 	/* Note that if the supplied env parameter is actually a copy
 	   of the global environ then it may now point to free'd memory
 	   if the environment has been modified since. To avoid this
@@ -3318,6 +3443,26 @@ S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register
 	    env = environ;
 	if (env != environ)
 	    environ[0] = Nullch;
+#ifdef NEED_ENVIRON_DUP_FOR_MODIFY
+	{
+	    char **env_base;
+	    for (env_base = env; *env; env++)
+		dup_env_count++;
+	    if ((dup_env_base = (char **)
+		 safesysmalloc( sizeof(char *) * (dup_env_count+1) ))) {
+		char **dup_env;
+		for (env = env_base, dup_env = dup_env_base;
+		     *env;
+		     env++, dup_env++) {
+		    /* With environ one needs to use safesysmalloc(). */
+		    *dup_env = safesysmalloc(strlen(*env) + 1);
+		    (void)strcpy(*dup_env, *env);
+		}
+		*dup_env = Nullch;
+		env = dup_env_base;
+	    } /* else what? */
+	}
+#endif /* NEED_ENVIRON_DUP_FOR_MODIFY */
 	for (; *env; env++) {
 	    if (!(s = strchr(*env,'=')))
 		continue;
@@ -3328,15 +3473,16 @@ S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register
 	    sv = newSVpv(s--,0);
 	    (void)hv_store(hv, *env, s - *env, sv, 0);
 	    *s = '=';
-#if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV)
-	    /* Sins of the RTL. See note in my_setenv(). */
-	    (void)PerlEnv_putenv(savepv(*env));
-#endif
 	}
-#endif
-#ifdef DYNAMIC_ENV_FETCH
-	HvNAME(hv) = savepv(ENV_HV_NAME);
-#endif
+#ifdef NEED_ENVIRON_DUP_FOR_MODIFY
+	if (dup_env_base) {
+	    char **dup_env;
+	    for (dup_env = dup_env_base; *dup_env; dup_env++)
+		safesysfree(*dup_env);
+	    safesysfree(dup_env_base);
+	}
+#endif /* NEED_ENVIRON_DUP_FOR_MODIFY */
+#endif /* USE_ENVIRON_ARRAY */
     }
     TAINT_NOT;
     if ((tmpgv = gv_fetchpv("$",TRUE, SVt_PV)))
@@ -3393,7 +3539,7 @@ S_init_perllib(pTHX)
 	Perl_sv_setpvf(aTHX_ privdir, "%ssite_perl:", macperl);
 	if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode))
 	    incpush(SvPVX(privdir), TRUE, FALSE);
-	    
+	
    	SvREFCNT_dec(privdir);
     }
     if (!PL_tainting)
@@ -3402,7 +3548,7 @@ S_init_perllib(pTHX)
 #ifndef PRIVLIB_EXP
 #  define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
 #endif
-#if defined(WIN32) 
+#if defined(WIN32)
     incpush(PRIVLIB_EXP, TRUE, FALSE);
 #else
     incpush(PRIVLIB_EXP, FALSE, FALSE);
@@ -3457,7 +3603,7 @@ S_init_perllib(pTHX)
 #endif /* MACOS_TRADITIONAL */
 }
 
-#if defined(DOSISH)
+#if defined(DOSISH) || defined(EPOC)
 #    define PERLLIB_SEP ';'
 #else
 #  if defined(VMS)
@@ -3472,7 +3618,7 @@ S_init_perllib(pTHX)
 #endif
 #ifndef PERLLIB_MANGLE
 #  define PERLLIB_MANGLE(s,n) (s)
-#endif 
+#endif
 
 STATIC void
 S_incpush(pTHX_ char *p, int addsubdirs, int addoldvers)
@@ -3542,13 +3688,15 @@ S_incpush(pTHX_ char *p, int addsubdirs, int addoldvers)
 	    if (addsubdirs) {
 #ifdef MACOS_TRADITIONAL
 #define PERL_AV_SUFFIX_FMT	""
-#define PERL_ARCH_FMT 		":%s"
+#define PERL_ARCH_FMT 		"%s:"
+#define PERL_ARCH_FMT_PATH	PERL_FS_VER_FMT PERL_AV_SUFFIX_FMT
 #else
 #define PERL_AV_SUFFIX_FMT 	"/"
 #define PERL_ARCH_FMT 		"/%s"
+#define PERL_ARCH_FMT_PATH	PERL_AV_SUFFIX_FMT PERL_FS_VER_FMT
 #endif
 		/* .../version/archname if -d .../version/archname */
-		Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_AV_SUFFIX_FMT PERL_FS_VER_FMT PERL_ARCH_FMT, 
+		Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH PERL_ARCH_FMT,
 				libdir,
 			       (int)PERL_REVISION, (int)PERL_VERSION,
 			       (int)PERL_SUBVERSION, ARCHNAME);
@@ -3557,7 +3705,7 @@ S_incpush(pTHX_ char *p, int addsubdirs, int addoldvers)
 		    av_push(GvAVn(PL_incgv), newSVsv(subdir));
 
 		/* .../version if -d .../version */
-		Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_AV_SUFFIX_FMT PERL_FS_VER_FMT, libdir,
+		Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH, libdir,
 			       (int)PERL_REVISION, (int)PERL_VERSION,
 			       (int)PERL_SUBVERSION);
 		if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
@@ -3626,6 +3774,7 @@ S_init_main_thread(pTHX)
     thr->tid = 0;
     thr->next = thr;
     thr->prev = thr;
+    thr->thr_done = 0;
     MUTEX_UNLOCK(&PL_threads_mutex);
 
 #ifdef HAVE_THREAD_INTERN
@@ -3640,8 +3789,9 @@ S_init_main_thread(pTHX)
     PERL_SET_THX(thr);
 
     /*
-     * These must come after the SET_THR because sv_setpvn does
-     * SvTAINT and the taint fields require dTHR.
+     * These must come after the thread self setting
+     * because sv_setpvn does SvTAINT and the taint
+     * fields thread selfness being set.
      */
     PL_toptarget = NEWSV(0,0);
     sv_upgrade(PL_toptarget, SVt_PVFM);
@@ -3669,7 +3819,6 @@ S_init_main_thread(pTHX)
 void
 Perl_call_list(pTHX_ I32 oldscope, AV *paramList)
 {
-    dTHR;
     SV *atsv;
     line_t oldline = CopLINE(PL_curcop);
     CV *cv;
@@ -3679,7 +3828,14 @@ Perl_call_list(pTHX_ I32 oldscope, AV *paramList)
 
     while (AvFILL(paramList) >= 0) {
 	cv = (CV*)av_shift(paramList);
-	SAVEFREESV(cv);
+	if ((PL_minus_c & 0x10) && (paramList == PL_beginav)) {
+		/* save PL_beginav for compiler */
+	    if (! PL_beginav_save)
+		PL_beginav_save = newAV();
+	    av_push(PL_beginav_save, (SV*)cv);
+	} else {
+	    SAVEFREESV(cv);
+	}
 #ifdef PERL_FLEXIBLE_EXCEPTIONS
 	CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_list_body), cv);
 #else
@@ -3767,8 +3923,6 @@ S_call_list_body(pTHX_ CV *cv)
 void
 Perl_my_exit(pTHX_ U32 status)
 {
-    dTHR;
-
     DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
 			  thr, (unsigned long) status));
     switch (status) {
@@ -3804,7 +3958,7 @@ Perl_my_failure_exit(pTHX)
     if (errno & 255)
 	STATUS_POSIX_SET(errno);
     else {
-	exitstatus = STATUS_POSIX >> 8; 
+	exitstatus = STATUS_POSIX >> 8;
 	if (exitstatus & 255)
 	    STATUS_POSIX_SET(exitstatus);
 	else
@@ -3817,7 +3971,6 @@ Perl_my_failure_exit(pTHX)
 STATIC void
 S_my_exit_jump(pTHX)
 {
-    dTHR;
     register PERL_CONTEXT *cx;
     I32 gimme;
     SV **newsp;