freebsd-dev/contrib/perl5/dump.c

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/* dump.c
*
* Copyright (c) 1991-1999, 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.
*
*/
/*
* "'You have talked long in your sleep, Frodo,' said Gandalf gently, 'and
* it has not been hard for me to read your mind and memory.'"
*/
#include "EXTERN.h"
#include "perl.h"
#ifndef PERL_OBJECT
static void dump(char *pat, ...);
#endif /* PERL_OBJECT */
void
dump_all(void)
{
#ifdef DEBUGGING
dTHR;
PerlIO_setlinebuf(Perl_debug_log);
if (PL_main_root)
dump_op(PL_main_root);
dump_packsubs(PL_defstash);
#endif /* DEBUGGING */
}
void
dump_packsubs(HV *stash)
{
#ifdef DEBUGGING
dTHR;
I32 i;
HE *entry;
if (!HvARRAY(stash))
return;
for (i = 0; i <= (I32) HvMAX(stash); i++) {
for (entry = HvARRAY(stash)[i]; entry; entry = HeNEXT(entry)) {
GV *gv = (GV*)HeVAL(entry);
HV *hv;
if (SvTYPE(gv) != SVt_PVGV || !GvGP(gv))
continue;
if (GvCVu(gv))
dump_sub(gv);
if (GvFORM(gv))
dump_form(gv);
if (HeKEY(entry)[HeKLEN(entry)-1] == ':' &&
(hv = GvHV(gv)) && HvNAME(hv) && hv != PL_defstash)
dump_packsubs(hv); /* nested package */
}
}
#endif /* DEBUGGING */
}
void
dump_sub(GV *gv)
{
#ifdef DEBUGGING
SV *sv = sv_newmortal();
gv_fullname3(sv, gv, Nullch);
dump("\nSUB %s = ", SvPVX(sv));
if (CvXSUB(GvCV(gv)))
dump("(xsub 0x%x %d)\n",
(long)CvXSUB(GvCV(gv)),
CvXSUBANY(GvCV(gv)).any_i32);
else if (CvROOT(GvCV(gv)))
dump_op(CvROOT(GvCV(gv)));
else
dump("<undef>\n");
#endif /* DEBUGGING */
}
void
dump_form(GV *gv)
{
#ifdef DEBUGGING
SV *sv = sv_newmortal();
gv_fullname3(sv, gv, Nullch);
dump("\nFORMAT %s = ", SvPVX(sv));
if (CvROOT(GvFORM(gv)))
dump_op(CvROOT(GvFORM(gv)));
else
dump("<undef>\n");
#endif /* DEBUGGING */
}
void
dump_eval(void)
{
#ifdef DEBUGGING
dump_op(PL_eval_root);
#endif /* DEBUGGING */
}
void
dump_op(OP *o)
{
#ifdef DEBUGGING
dump("{\n");
if (o->op_seq)
PerlIO_printf(Perl_debug_log, "%-4d", o->op_seq);
else
PerlIO_printf(Perl_debug_log, " ");
dump("TYPE = %s ===> ", op_name[o->op_type]);
if (o->op_next) {
if (o->op_seq)
PerlIO_printf(Perl_debug_log, "%d\n", o->op_next->op_seq);
else
PerlIO_printf(Perl_debug_log, "(%d)\n", o->op_next->op_seq);
}
else
PerlIO_printf(Perl_debug_log, "DONE\n");
PL_dumplvl++;
if (o->op_targ) {
if (o->op_type == OP_NULL)
dump(" (was %s)\n", op_name[o->op_targ]);
else
dump("TARG = %d\n", o->op_targ);
}
#ifdef DUMPADDR
dump("ADDR = 0x%lx => 0x%lx\n",o, o->op_next);
#endif
if (o->op_flags) {
SV *tmpsv = newSVpv("", 0);
switch (o->op_flags & OPf_WANT) {
case OPf_WANT_VOID:
sv_catpv(tmpsv, ",VOID");
break;
case OPf_WANT_SCALAR:
sv_catpv(tmpsv, ",SCALAR");
break;
case OPf_WANT_LIST:
sv_catpv(tmpsv, ",LIST");
break;
default:
sv_catpv(tmpsv, ",UNKNOWN");
break;
}
if (o->op_flags & OPf_KIDS)
sv_catpv(tmpsv, ",KIDS");
if (o->op_flags & OPf_PARENS)
sv_catpv(tmpsv, ",PARENS");
if (o->op_flags & OPf_STACKED)
sv_catpv(tmpsv, ",STACKED");
if (o->op_flags & OPf_REF)
sv_catpv(tmpsv, ",REF");
if (o->op_flags & OPf_MOD)
sv_catpv(tmpsv, ",MOD");
if (o->op_flags & OPf_SPECIAL)
sv_catpv(tmpsv, ",SPECIAL");
dump("FLAGS = (%s)\n", SvCUR(tmpsv) ? SvPVX(tmpsv) + 1 : "");
SvREFCNT_dec(tmpsv);
}
if (o->op_private) {
SV *tmpsv = newSVpv("", 0);
if (o->op_type == OP_AASSIGN) {
if (o->op_private & OPpASSIGN_COMMON)
sv_catpv(tmpsv, ",COMMON");
}
else if (o->op_type == OP_SASSIGN) {
if (o->op_private & OPpASSIGN_BACKWARDS)
sv_catpv(tmpsv, ",BACKWARDS");
}
else if (o->op_type == OP_TRANS) {
if (o->op_private & OPpTRANS_SQUASH)
sv_catpv(tmpsv, ",SQUASH");
if (o->op_private & OPpTRANS_DELETE)
sv_catpv(tmpsv, ",DELETE");
if (o->op_private & OPpTRANS_COMPLEMENT)
sv_catpv(tmpsv, ",COMPLEMENT");
}
else if (o->op_type == OP_REPEAT) {
if (o->op_private & OPpREPEAT_DOLIST)
sv_catpv(tmpsv, ",DOLIST");
}
else if (o->op_type == OP_ENTERSUB ||
o->op_type == OP_RV2SV ||
o->op_type == OP_RV2AV ||
o->op_type == OP_RV2HV ||
o->op_type == OP_RV2GV ||
o->op_type == OP_AELEM ||
o->op_type == OP_HELEM )
{
if (o->op_type == OP_ENTERSUB) {
if (o->op_private & OPpENTERSUB_AMPER)
sv_catpv(tmpsv, ",AMPER");
if (o->op_private & OPpENTERSUB_DB)
sv_catpv(tmpsv, ",DB");
}
switch (o->op_private & OPpDEREF) {
case OPpDEREF_SV:
sv_catpv(tmpsv, ",SV");
break;
case OPpDEREF_AV:
sv_catpv(tmpsv, ",AV");
break;
case OPpDEREF_HV:
sv_catpv(tmpsv, ",HV");
break;
}
if (o->op_type == OP_AELEM || o->op_type == OP_HELEM) {
if (o->op_private & OPpLVAL_DEFER)
sv_catpv(tmpsv, ",LVAL_DEFER");
}
else {
if (o->op_private & HINT_STRICT_REFS)
sv_catpv(tmpsv, ",STRICT_REFS");
}
}
else if (o->op_type == OP_CONST) {
if (o->op_private & OPpCONST_BARE)
sv_catpv(tmpsv, ",BARE");
}
else if (o->op_type == OP_FLIP) {
if (o->op_private & OPpFLIP_LINENUM)
sv_catpv(tmpsv, ",LINENUM");
}
else if (o->op_type == OP_FLOP) {
if (o->op_private & OPpFLIP_LINENUM)
sv_catpv(tmpsv, ",LINENUM");
}
if (o->op_flags & OPf_MOD && o->op_private & OPpLVAL_INTRO)
sv_catpv(tmpsv, ",INTRO");
if (SvCUR(tmpsv))
dump("PRIVATE = (%s)\n", SvPVX(tmpsv) + 1);
SvREFCNT_dec(tmpsv);
}
switch (o->op_type) {
case OP_GVSV:
case OP_GV:
if (cGVOPo->op_gv) {
STRLEN n_a;
SV *tmpsv = NEWSV(0,0);
ENTER;
SAVEFREESV(tmpsv);
gv_fullname3(tmpsv, cGVOPo->op_gv, Nullch);
dump("GV = %s\n", SvPV(tmpsv, n_a));
LEAVE;
}
else
dump("GV = NULL\n");
break;
case OP_CONST:
dump("SV = %s\n", SvPEEK(cSVOPo->op_sv));
break;
case OP_NEXTSTATE:
case OP_DBSTATE:
if (cCOPo->cop_line)
dump("LINE = %d\n",cCOPo->cop_line);
if (cCOPo->cop_label)
dump("LABEL = \"%s\"\n",cCOPo->cop_label);
break;
case OP_ENTERLOOP:
dump("REDO ===> ");
if (cLOOPo->op_redoop)
PerlIO_printf(Perl_debug_log, "%d\n", cLOOPo->op_redoop->op_seq);
else
PerlIO_printf(Perl_debug_log, "DONE\n");
dump("NEXT ===> ");
if (cLOOPo->op_nextop)
PerlIO_printf(Perl_debug_log, "%d\n", cLOOPo->op_nextop->op_seq);
else
PerlIO_printf(Perl_debug_log, "DONE\n");
dump("LAST ===> ");
if (cLOOPo->op_lastop)
PerlIO_printf(Perl_debug_log, "%d\n", cLOOPo->op_lastop->op_seq);
else
PerlIO_printf(Perl_debug_log, "DONE\n");
break;
case OP_COND_EXPR:
dump("TRUE ===> ");
if (cCONDOPo->op_true)
PerlIO_printf(Perl_debug_log, "%d\n", cCONDOPo->op_true->op_seq);
else
PerlIO_printf(Perl_debug_log, "DONE\n");
dump("FALSE ===> ");
if (cCONDOPo->op_false)
PerlIO_printf(Perl_debug_log, "%d\n", cCONDOPo->op_false->op_seq);
else
PerlIO_printf(Perl_debug_log, "DONE\n");
break;
case OP_MAPWHILE:
case OP_GREPWHILE:
case OP_OR:
case OP_AND:
dump("OTHER ===> ");
if (cLOGOPo->op_other)
PerlIO_printf(Perl_debug_log, "%d\n", cLOGOPo->op_other->op_seq);
else
PerlIO_printf(Perl_debug_log, "DONE\n");
break;
case OP_PUSHRE:
case OP_MATCH:
case OP_QR:
case OP_SUBST:
dump_pm(cPMOPo);
break;
default:
break;
}
if (o->op_flags & OPf_KIDS) {
OP *kid;
for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling)
dump_op(kid);
}
PL_dumplvl--;
dump("}\n");
#endif /* DEBUGGING */
}
void
dump_gv(GV *gv)
{
#ifdef DEBUGGING
SV *sv;
if (!gv) {
PerlIO_printf(Perl_debug_log, "{}\n");
return;
}
sv = sv_newmortal();
PL_dumplvl++;
PerlIO_printf(Perl_debug_log, "{\n");
gv_fullname3(sv, gv, Nullch);
dump("GV_NAME = %s", SvPVX(sv));
if (gv != GvEGV(gv)) {
gv_efullname3(sv, GvEGV(gv), Nullch);
dump("-> %s", SvPVX(sv));
}
dump("\n");
PL_dumplvl--;
dump("}\n");
#endif /* DEBUGGING */
}
void
dump_pm(PMOP *pm)
{
#ifdef DEBUGGING
char ch;
if (!pm) {
dump("{}\n");
return;
}
dump("{\n");
PL_dumplvl++;
if (pm->op_pmflags & PMf_ONCE)
ch = '?';
else
ch = '/';
if (pm->op_pmregexp)
dump("PMf_PRE %c%s%c%s\n",
ch, pm->op_pmregexp->precomp, ch,
(pm->op_private & OPpRUNTIME) ? " (RUNTIME)" : "");
else
dump("PMf_PRE (RUNTIME)\n");
if (pm->op_type != OP_PUSHRE && pm->op_pmreplroot) {
dump("PMf_REPL = ");
dump_op(pm->op_pmreplroot);
}
if (pm->op_pmflags || (pm->op_pmregexp && pm->op_pmregexp->check_substr)) {
SV *tmpsv = newSVpv("", 0);
if (pm->op_pmdynflags & PMdf_USED)
sv_catpv(tmpsv, ",USED");
if (pm->op_pmdynflags & PMdf_TAINTED)
sv_catpv(tmpsv, ",TAINTED");
if (pm->op_pmflags & PMf_ONCE)
sv_catpv(tmpsv, ",ONCE");
if (pm->op_pmregexp && pm->op_pmregexp->check_substr
&& !(pm->op_pmregexp->reganch & ROPT_NOSCAN))
sv_catpv(tmpsv, ",SCANFIRST");
if (pm->op_pmregexp && pm->op_pmregexp->check_substr
&& pm->op_pmregexp->reganch & ROPT_CHECK_ALL)
sv_catpv(tmpsv, ",ALL");
if (pm->op_pmflags & PMf_SKIPWHITE)
sv_catpv(tmpsv, ",SKIPWHITE");
if (pm->op_pmflags & PMf_CONST)
sv_catpv(tmpsv, ",CONST");
if (pm->op_pmflags & PMf_KEEP)
sv_catpv(tmpsv, ",KEEP");
if (pm->op_pmflags & PMf_GLOBAL)
sv_catpv(tmpsv, ",GLOBAL");
if (pm->op_pmflags & PMf_CONTINUE)
sv_catpv(tmpsv, ",CONTINUE");
if (pm->op_pmflags & PMf_RETAINT)
sv_catpv(tmpsv, ",RETAINT");
if (pm->op_pmflags & PMf_EVAL)
sv_catpv(tmpsv, ",EVAL");
dump("PMFLAGS = (%s)\n", SvCUR(tmpsv) ? SvPVX(tmpsv) + 1 : "");
SvREFCNT_dec(tmpsv);
}
PL_dumplvl--;
dump("}\n");
#endif /* DEBUGGING */
}
STATIC void
dump(char *pat,...)
{
#ifdef DEBUGGING
I32 i;
va_list args;
va_start(args, pat);
for (i = PL_dumplvl*4; i; i--)
(void)PerlIO_putc(Perl_debug_log,' ');
PerlIO_vprintf(Perl_debug_log,pat,args);
va_end(args);
#endif /* DEBUGGING */
}