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#define PERL_NO_GET_CONTEXT
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
SV *
DeadCode(pTHX)
{
#ifdef PURIFY
return Nullsv;
#else
SV* sva;
SV* sv, *dbg;
SV* ret = newRV_noinc((SV*)newAV());
register SV* svend;
int tm = 0, tref = 0, ts = 0, ta = 0, tas = 0;
for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
svend = &sva[SvREFCNT(sva)];
for (sv = sva + 1; sv < svend; ++sv) {
if (SvTYPE(sv) == SVt_PVCV) {
CV *cv = (CV*)sv;
AV* padlist = CvPADLIST(cv), *argav;
SV** svp;
SV** pad;
int i = 0, j, levelm, totm = 0, levelref, totref = 0;
int levels, tots = 0, levela, tota = 0, levelas, totas = 0;
int dumpit = 0;
if (CvXSUB(sv)) {
continue; /* XSUB */
}
if (!CvGV(sv)) {
continue; /* file-level scope. */
}
if (!CvROOT(cv)) {
/* PerlIO_printf(Perl_debug_log, " no root?!\n"); */
continue; /* autoloading stub. */
}
do_gvgv_dump(0, Perl_debug_log, "GVGV::GV", CvGV(sv));
if (CvDEPTH(cv)) {
PerlIO_printf(Perl_debug_log, " busy\n");
continue;
}
svp = AvARRAY(padlist);
while (++i <= AvFILL(padlist)) { /* Depth. */
SV **args;
pad = AvARRAY((AV*)svp[i]);
argav = (AV*)pad[0];
if (!argav || (SV*)argav == &PL_sv_undef) {
PerlIO_printf(Perl_debug_log, " closure-template\n");
continue;
}
args = AvARRAY(argav);
levelm = levels = levelref = levelas = 0;
levela = sizeof(SV*) * (AvMAX(argav) + 1);
if (AvREAL(argav)) {
for (j = 0; j < AvFILL(argav); j++) {
if (SvROK(args[j])) {
PerlIO_printf(Perl_debug_log, " ref in args!\n");
levelref++;
}
/* else if (SvPOK(args[j]) && SvPVX(args[j])) { */
else if (SvTYPE(args[j]) >= SVt_PV && SvLEN(args[j])) {
levelas += SvLEN(args[j])/SvREFCNT(args[j]);
}
}
}
for (j = 1; j < AvFILL((AV*)svp[1]); j++) { /* Vars. */
if (SvROK(pad[j])) {
levelref++;
do_sv_dump(0, Perl_debug_log, pad[j], 0, 4, 0, 0);
dumpit = 1;
}
/* else if (SvPOK(pad[j]) && SvPVX(pad[j])) { */
else if (SvTYPE(pad[j]) >= SVt_PVAV) {
if (!SvPADMY(pad[j])) {
levelref++;
do_sv_dump(0, Perl_debug_log, pad[j], 0, 4, 0, 0);
dumpit = 1;
}
}
else if (SvTYPE(pad[j]) >= SVt_PV && SvLEN(pad[j])) {
int db_len = SvLEN(pad[j]);
SV *db_sv = pad[j];
levels++;
levelm += SvLEN(pad[j])/SvREFCNT(pad[j]);
/* Dump(pad[j],4); */
}
}
PerlIO_printf(Perl_debug_log, " level %i: refs: %i, strings: %i in %i,\targsarray: %i, argsstrings: %i\n",
i, levelref, levelm, levels, levela, levelas);
totm += levelm;
tota += levela;
totas += levelas;
tots += levels;
totref += levelref;
if (dumpit)
do_sv_dump(0, Perl_debug_log, (SV*)cv, 0, 2, 0, 0);
}
if (AvFILL(padlist) > 1) {
PerlIO_printf(Perl_debug_log, " total: refs: %i, strings: %i in %i,\targsarrays: %i, argsstrings: %i\n",
totref, totm, tots, tota, totas);
}
tref += totref;
tm += totm;
ts += tots;
ta += tota;
tas += totas;
}
}
}
PerlIO_printf(Perl_debug_log, "total: refs: %i, strings: %i in %i\targsarray: %i, argsstrings: %i\n", tref, tm, ts, ta, tas);
return ret;
#endif /* !PURIFY */
}
#if defined(PERL_DEBUGGING_MSTATS) || defined(DEBUGGING_MSTATS) \
|| (defined(MYMALLOC) && !defined(PLAIN_MALLOC))
# define mstat(str) dump_mstats(str)
#else
# define mstat(str) \
PerlIO_printf(Perl_debug_log, "%s: perl not compiled with DEBUGGING_MSTATS\n",str);
#endif
#define _CvGV(cv) \
(SvROK(cv) && (SvTYPE(SvRV(cv))==SVt_PVCV) \
? SvREFCNT_inc(CvGV((CV*)SvRV(cv))) : &PL_sv_undef)
MODULE = Devel::Peek PACKAGE = Devel::Peek
void
mstat(str="Devel::Peek::mstat: ")
char *str
void
Dump(sv,lim=4)
SV * sv
I32 lim
PPCODE:
{
SV *pv_lim_sv = perl_get_sv("Devel::Peek::pv_limit", FALSE);
STRLEN pv_lim = pv_lim_sv ? SvIV(pv_lim_sv) : 0;
SV *dumpop = perl_get_sv("Devel::Peek::dump_ops", FALSE);
I32 save_dumpindent = PL_dumpindent;
PL_dumpindent = 2;
do_sv_dump(0, Perl_debug_log, sv, 0, lim, dumpop && SvTRUE(dumpop), pv_lim);
PL_dumpindent = save_dumpindent;
}
void
DumpArray(lim,...)
I32 lim
PPCODE:
{
long i;
SV *pv_lim_sv = perl_get_sv("Devel::Peek::pv_limit", FALSE);
STRLEN pv_lim = pv_lim_sv ? SvIV(pv_lim_sv) : 0;
SV *dumpop = perl_get_sv("Devel::Peek::dump_ops", FALSE);
I32 save_dumpindent = PL_dumpindent;
PL_dumpindent = 2;
for (i=1; i<items; i++) {
PerlIO_printf(Perl_debug_log, "Elt No. %ld 0x%"UVxf"\n", i - 1, PTR2UV(ST(i)));
do_sv_dump(0, Perl_debug_log, ST(i), 0, lim, dumpop && SvTRUE(dumpop), pv_lim);
}
PL_dumpindent = save_dumpindent;
}
void
DumpProg()
PPCODE:
{
warn("dumpindent is %d", PL_dumpindent);
if (PL_main_root)
op_dump(PL_main_root);
}
I32
SvREFCNT(sv)
SV * sv
# PPCODE needed since otherwise sv_2mortal is inserted that will kill the value.
SV *
SvREFCNT_inc(sv)
SV * sv
PPCODE:
{
RETVAL = SvREFCNT_inc(sv);
PUSHs(RETVAL);
}
# PPCODE needed since by default it is void
SV *
SvREFCNT_dec(sv)
SV * sv
PPCODE:
{
SvREFCNT_dec(sv);
PUSHs(sv);
}
SV *
DeadCode()
CODE:
RETVAL = DeadCode(aTHX);
OUTPUT:
RETVAL
MODULE = Devel::Peek PACKAGE = Devel::Peek PREFIX = _
SV *
_CvGV(cv)
SV *cv
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