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/* run.c
*
* Copyright (c) 1991-2001, 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.
*
*/
#include "EXTERN.h"
#define PERL_IN_RUN_C
#include "perl.h"
/*
* "Away now, Shadowfax! Run, greatheart, run as you have never run before!
* Now we are come to the lands where you were foaled, and every stone you
* know. Run now! Hope is in speed!" --Gandalf
*/
int
Perl_runops_standard(pTHX)
{
while ((PL_op = CALL_FPTR(PL_op->op_ppaddr)(aTHX))) {
PERL_ASYNC_CHECK();
}
TAINT_NOT;
return 0;
}
int
Perl_runops_debug(pTHX)
{
#ifdef DEBUGGING
if (!PL_op) {
if (ckWARN_d(WARN_DEBUGGING))
Perl_warner(aTHX_ WARN_DEBUGGING, "NULL OP IN RUN");
return 0;
}
do {
PERL_ASYNC_CHECK();
if (PL_debug) {
if (PL_watchaddr != 0 && *PL_watchaddr != PL_watchok)
PerlIO_printf(Perl_debug_log,
"WARNING: %"UVxf" changed from %"UVxf" to %"UVxf"\n",
PTR2UV(PL_watchaddr), PTR2UV(PL_watchok),
PTR2UV(*PL_watchaddr));
DEBUG_s(debstack());
DEBUG_t(debop(PL_op));
DEBUG_P(debprof(PL_op));
}
} while ((PL_op = CALL_FPTR(PL_op->op_ppaddr)(aTHX)));
TAINT_NOT;
return 0;
#else
return runops_standard();
#endif /* DEBUGGING */
}
I32
Perl_debop(pTHX_ OP *o)
{
#ifdef DEBUGGING
AV *padlist, *comppad;
CV *cv;
SV *sv;
STRLEN n_a;
Perl_deb(aTHX_ "%s", PL_op_name[o->op_type]);
switch (o->op_type) {
case OP_CONST:
PerlIO_printf(Perl_debug_log, "(%s)", SvPEEK(cSVOPo_sv));
break;
case OP_GVSV:
case OP_GV:
if (cGVOPo_gv) {
sv = NEWSV(0,0);
gv_fullname3(sv, cGVOPo_gv, Nullch);
PerlIO_printf(Perl_debug_log, "(%s)", SvPV(sv, n_a));
SvREFCNT_dec(sv);
}
else
PerlIO_printf(Perl_debug_log, "(NULL)");
break;
case OP_PADSV:
case OP_PADAV:
case OP_PADHV:
/* print the lexical's name */
cv = deb_curcv(cxstack_ix);
if (cv) {
padlist = CvPADLIST(cv);
comppad = (AV*)(*av_fetch(padlist, 0, FALSE));
sv = *av_fetch(comppad, o->op_targ, FALSE);
} else
sv = Nullsv;
if (sv)
PerlIO_printf(Perl_debug_log, "(%s)", SvPV_nolen(sv));
else
PerlIO_printf(Perl_debug_log, "[%"UVuf"]", (UV)o->op_targ);
break;
default:
break;
}
PerlIO_printf(Perl_debug_log, "\n");
#endif /* DEBUGGING */
return 0;
}
STATIC CV*
S_deb_curcv(pTHX_ I32 ix)
{
#ifdef DEBUGGING
PERL_CONTEXT *cx = &cxstack[ix];
if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT)
return cx->blk_sub.cv;
else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx))
return PL_compcv;
else if (ix == 0 && PL_curstackinfo->si_type == PERLSI_MAIN)
return PL_main_cv;
else if (ix <= 0)
return Nullcv;
else
return deb_curcv(ix - 1);
#else
return Nullcv;
#endif /* DEBUGGING */
}
void
Perl_watch(pTHX_ char **addr)
{
#ifdef DEBUGGING
PL_watchaddr = addr;
PL_watchok = *addr;
PerlIO_printf(Perl_debug_log, "WATCHING, %"UVxf" is currently %"UVxf"\n",
PTR2UV(PL_watchaddr), PTR2UV(PL_watchok));
#endif /* DEBUGGING */
}
STATIC void
S_debprof(pTHX_ OP *o)
{
#ifdef DEBUGGING
if (!PL_profiledata)
Newz(000, PL_profiledata, MAXO, U32);
++PL_profiledata[o->op_type];
#endif /* DEBUGGING */
}
void
Perl_debprofdump(pTHX)
{
#ifdef DEBUGGING
unsigned i;
if (!PL_profiledata)
return;
for (i = 0; i < MAXO; i++) {
if (PL_profiledata[i])
PerlIO_printf(Perl_debug_log,
"%5lu %s\n", (unsigned long)PL_profiledata[i],
PL_op_name[i]);
}
#endif /* DEBUGGING */
}
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