423 lines
9.8 KiB
C
423 lines
9.8 KiB
C
/* dump.c
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*
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* Copyright (c) 1991-1997, Larry Wall
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*
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* You may distribute under the terms of either the GNU General Public
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* License or the Artistic License, as specified in the README file.
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*
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*/
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/*
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* "'You have talked long in your sleep, Frodo,' said Gandalf gently, 'and
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* it has not been hard for me to read your mind and memory.'"
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*/
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#include "EXTERN.h"
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#include "perl.h"
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#ifndef PERL_OBJECT
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static void dump(char *pat, ...);
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#endif /* PERL_OBJECT */
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void
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dump_all(void)
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{
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#ifdef DEBUGGING
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dTHR;
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PerlIO_setlinebuf(Perl_debug_log);
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if (PL_main_root)
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dump_op(PL_main_root);
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dump_packsubs(PL_defstash);
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#endif /* DEBUGGING */
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}
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void
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dump_packsubs(HV *stash)
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{
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#ifdef DEBUGGING
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dTHR;
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I32 i;
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HE *entry;
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if (!HvARRAY(stash))
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return;
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for (i = 0; i <= (I32) HvMAX(stash); i++) {
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for (entry = HvARRAY(stash)[i]; entry; entry = HeNEXT(entry)) {
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GV *gv = (GV*)HeVAL(entry);
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HV *hv;
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if (SvTYPE(gv) != SVt_PVGV || !GvGP(gv))
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continue;
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if (GvCVu(gv))
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dump_sub(gv);
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if (GvFORM(gv))
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dump_form(gv);
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if (HeKEY(entry)[HeKLEN(entry)-1] == ':' &&
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(hv = GvHV(gv)) && HvNAME(hv) && hv != PL_defstash)
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dump_packsubs(hv); /* nested package */
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}
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}
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#endif /* DEBUGGING */
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}
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void
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dump_sub(GV *gv)
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{
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#ifdef DEBUGGING
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SV *sv = sv_newmortal();
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gv_fullname3(sv, gv, Nullch);
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dump("\nSUB %s = ", SvPVX(sv));
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if (CvXSUB(GvCV(gv)))
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dump("(xsub 0x%x %d)\n",
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(long)CvXSUB(GvCV(gv)),
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CvXSUBANY(GvCV(gv)).any_i32);
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else if (CvROOT(GvCV(gv)))
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dump_op(CvROOT(GvCV(gv)));
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else
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dump("<undef>\n");
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#endif /* DEBUGGING */
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}
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void
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dump_form(GV *gv)
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{
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#ifdef DEBUGGING
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SV *sv = sv_newmortal();
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gv_fullname3(sv, gv, Nullch);
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dump("\nFORMAT %s = ", SvPVX(sv));
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if (CvROOT(GvFORM(gv)))
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dump_op(CvROOT(GvFORM(gv)));
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else
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dump("<undef>\n");
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#endif /* DEBUGGING */
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}
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void
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dump_eval(void)
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{
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#ifdef DEBUGGING
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dump_op(PL_eval_root);
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#endif /* DEBUGGING */
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}
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void
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dump_op(OP *o)
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{
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#ifdef DEBUGGING
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dump("{\n");
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if (o->op_seq)
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PerlIO_printf(Perl_debug_log, "%-4d", o->op_seq);
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else
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PerlIO_printf(Perl_debug_log, " ");
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dump("TYPE = %s ===> ", op_name[o->op_type]);
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if (o->op_next) {
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if (o->op_seq)
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PerlIO_printf(Perl_debug_log, "%d\n", o->op_next->op_seq);
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else
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PerlIO_printf(Perl_debug_log, "(%d)\n", o->op_next->op_seq);
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}
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else
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PerlIO_printf(Perl_debug_log, "DONE\n");
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PL_dumplvl++;
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if (o->op_targ) {
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if (o->op_type == OP_NULL)
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dump(" (was %s)\n", op_name[o->op_targ]);
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else
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dump("TARG = %d\n", o->op_targ);
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}
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#ifdef DUMPADDR
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dump("ADDR = 0x%lx => 0x%lx\n",o, o->op_next);
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#endif
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if (o->op_flags) {
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SV *tmpsv = newSVpv("", 0);
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switch (o->op_flags & OPf_WANT) {
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case OPf_WANT_VOID:
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sv_catpv(tmpsv, ",VOID");
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break;
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case OPf_WANT_SCALAR:
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sv_catpv(tmpsv, ",SCALAR");
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break;
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case OPf_WANT_LIST:
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sv_catpv(tmpsv, ",LIST");
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break;
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default:
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sv_catpv(tmpsv, ",UNKNOWN");
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break;
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}
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if (o->op_flags & OPf_KIDS)
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sv_catpv(tmpsv, ",KIDS");
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if (o->op_flags & OPf_PARENS)
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sv_catpv(tmpsv, ",PARENS");
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if (o->op_flags & OPf_STACKED)
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sv_catpv(tmpsv, ",STACKED");
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if (o->op_flags & OPf_REF)
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sv_catpv(tmpsv, ",REF");
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if (o->op_flags & OPf_MOD)
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sv_catpv(tmpsv, ",MOD");
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if (o->op_flags & OPf_SPECIAL)
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sv_catpv(tmpsv, ",SPECIAL");
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dump("FLAGS = (%s)\n", SvCUR(tmpsv) ? SvPVX(tmpsv) + 1 : "");
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SvREFCNT_dec(tmpsv);
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}
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if (o->op_private) {
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SV *tmpsv = newSVpv("", 0);
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if (o->op_type == OP_AASSIGN) {
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if (o->op_private & OPpASSIGN_COMMON)
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sv_catpv(tmpsv, ",COMMON");
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}
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else if (o->op_type == OP_SASSIGN) {
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if (o->op_private & OPpASSIGN_BACKWARDS)
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sv_catpv(tmpsv, ",BACKWARDS");
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}
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else if (o->op_type == OP_TRANS) {
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if (o->op_private & OPpTRANS_SQUASH)
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sv_catpv(tmpsv, ",SQUASH");
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if (o->op_private & OPpTRANS_DELETE)
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sv_catpv(tmpsv, ",DELETE");
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if (o->op_private & OPpTRANS_COMPLEMENT)
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sv_catpv(tmpsv, ",COMPLEMENT");
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}
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else if (o->op_type == OP_REPEAT) {
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if (o->op_private & OPpREPEAT_DOLIST)
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sv_catpv(tmpsv, ",DOLIST");
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}
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else if (o->op_type == OP_ENTERSUB ||
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o->op_type == OP_RV2SV ||
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o->op_type == OP_RV2AV ||
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o->op_type == OP_RV2HV ||
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o->op_type == OP_RV2GV ||
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o->op_type == OP_AELEM ||
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o->op_type == OP_HELEM )
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{
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if (o->op_type == OP_ENTERSUB) {
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if (o->op_private & OPpENTERSUB_AMPER)
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sv_catpv(tmpsv, ",AMPER");
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if (o->op_private & OPpENTERSUB_DB)
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sv_catpv(tmpsv, ",DB");
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}
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switch (o->op_private & OPpDEREF) {
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case OPpDEREF_SV:
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sv_catpv(tmpsv, ",SV");
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break;
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case OPpDEREF_AV:
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sv_catpv(tmpsv, ",AV");
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break;
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case OPpDEREF_HV:
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sv_catpv(tmpsv, ",HV");
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break;
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}
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if (o->op_type == OP_AELEM || o->op_type == OP_HELEM) {
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if (o->op_private & OPpLVAL_DEFER)
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sv_catpv(tmpsv, ",LVAL_DEFER");
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}
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else {
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if (o->op_private & HINT_STRICT_REFS)
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sv_catpv(tmpsv, ",STRICT_REFS");
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}
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}
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else if (o->op_type == OP_CONST) {
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if (o->op_private & OPpCONST_BARE)
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sv_catpv(tmpsv, ",BARE");
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}
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else if (o->op_type == OP_FLIP) {
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if (o->op_private & OPpFLIP_LINENUM)
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sv_catpv(tmpsv, ",LINENUM");
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}
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else if (o->op_type == OP_FLOP) {
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if (o->op_private & OPpFLIP_LINENUM)
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sv_catpv(tmpsv, ",LINENUM");
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}
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if (o->op_flags & OPf_MOD && o->op_private & OPpLVAL_INTRO)
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sv_catpv(tmpsv, ",INTRO");
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if (SvCUR(tmpsv))
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dump("PRIVATE = (%s)\n", SvPVX(tmpsv) + 1);
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SvREFCNT_dec(tmpsv);
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}
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switch (o->op_type) {
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case OP_GVSV:
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case OP_GV:
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if (cGVOPo->op_gv) {
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SV *tmpsv = NEWSV(0,0);
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ENTER;
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SAVEFREESV(tmpsv);
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gv_fullname3(tmpsv, cGVOPo->op_gv, Nullch);
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dump("GV = %s\n", SvPV(tmpsv, PL_na));
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LEAVE;
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}
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else
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dump("GV = NULL\n");
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break;
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case OP_CONST:
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dump("SV = %s\n", SvPEEK(cSVOPo->op_sv));
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break;
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case OP_NEXTSTATE:
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case OP_DBSTATE:
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if (cCOPo->cop_line)
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dump("LINE = %d\n",cCOPo->cop_line);
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if (cCOPo->cop_label)
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dump("LABEL = \"%s\"\n",cCOPo->cop_label);
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break;
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case OP_ENTERLOOP:
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dump("REDO ===> ");
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if (cLOOPo->op_redoop)
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PerlIO_printf(Perl_debug_log, "%d\n", cLOOPo->op_redoop->op_seq);
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else
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PerlIO_printf(Perl_debug_log, "DONE\n");
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dump("NEXT ===> ");
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if (cLOOPo->op_nextop)
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PerlIO_printf(Perl_debug_log, "%d\n", cLOOPo->op_nextop->op_seq);
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else
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PerlIO_printf(Perl_debug_log, "DONE\n");
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dump("LAST ===> ");
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if (cLOOPo->op_lastop)
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PerlIO_printf(Perl_debug_log, "%d\n", cLOOPo->op_lastop->op_seq);
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else
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PerlIO_printf(Perl_debug_log, "DONE\n");
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break;
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case OP_COND_EXPR:
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dump("TRUE ===> ");
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if (cCONDOPo->op_true)
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PerlIO_printf(Perl_debug_log, "%d\n", cCONDOPo->op_true->op_seq);
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else
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PerlIO_printf(Perl_debug_log, "DONE\n");
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dump("FALSE ===> ");
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if (cCONDOPo->op_false)
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PerlIO_printf(Perl_debug_log, "%d\n", cCONDOPo->op_false->op_seq);
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else
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PerlIO_printf(Perl_debug_log, "DONE\n");
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break;
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case OP_MAPWHILE:
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case OP_GREPWHILE:
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case OP_OR:
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case OP_AND:
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dump("OTHER ===> ");
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if (cLOGOPo->op_other)
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PerlIO_printf(Perl_debug_log, "%d\n", cLOGOPo->op_other->op_seq);
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else
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PerlIO_printf(Perl_debug_log, "DONE\n");
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break;
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case OP_PUSHRE:
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case OP_MATCH:
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case OP_QR:
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case OP_SUBST:
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dump_pm(cPMOPo);
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break;
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default:
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break;
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}
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if (o->op_flags & OPf_KIDS) {
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OP *kid;
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for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling)
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dump_op(kid);
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}
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PL_dumplvl--;
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dump("}\n");
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#endif /* DEBUGGING */
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}
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void
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dump_gv(GV *gv)
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{
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#ifdef DEBUGGING
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SV *sv;
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if (!gv) {
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PerlIO_printf(Perl_debug_log, "{}\n");
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return;
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}
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sv = sv_newmortal();
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PL_dumplvl++;
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PerlIO_printf(Perl_debug_log, "{\n");
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gv_fullname3(sv, gv, Nullch);
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dump("GV_NAME = %s", SvPVX(sv));
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if (gv != GvEGV(gv)) {
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gv_efullname3(sv, GvEGV(gv), Nullch);
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dump("-> %s", SvPVX(sv));
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}
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dump("\n");
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PL_dumplvl--;
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dump("}\n");
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#endif /* DEBUGGING */
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}
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void
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dump_pm(PMOP *pm)
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{
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#ifdef DEBUGGING
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char ch;
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if (!pm) {
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dump("{}\n");
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return;
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}
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dump("{\n");
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PL_dumplvl++;
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if (pm->op_pmflags & PMf_ONCE)
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ch = '?';
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else
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ch = '/';
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if (pm->op_pmregexp)
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dump("PMf_PRE %c%s%c%s\n",
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ch, pm->op_pmregexp->precomp, ch,
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(pm->op_private & OPpRUNTIME) ? " (RUNTIME)" : "");
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else
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dump("PMf_PRE (RUNTIME)\n");
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if (pm->op_type != OP_PUSHRE && pm->op_pmreplroot) {
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dump("PMf_REPL = ");
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dump_op(pm->op_pmreplroot);
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}
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if (pm->op_pmflags || (pm->op_pmregexp && pm->op_pmregexp->check_substr)) {
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SV *tmpsv = newSVpv("", 0);
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if (pm->op_pmdynflags & PMdf_USED)
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sv_catpv(tmpsv, ",USED");
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if (pm->op_pmdynflags & PMdf_TAINTED)
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sv_catpv(tmpsv, ",TAINTED");
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if (pm->op_pmflags & PMf_ONCE)
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sv_catpv(tmpsv, ",ONCE");
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if (pm->op_pmregexp && pm->op_pmregexp->check_substr
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&& !(pm->op_pmregexp->reganch & ROPT_NOSCAN))
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sv_catpv(tmpsv, ",SCANFIRST");
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if (pm->op_pmregexp && pm->op_pmregexp->check_substr
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&& pm->op_pmregexp->reganch & ROPT_CHECK_ALL)
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sv_catpv(tmpsv, ",ALL");
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if (pm->op_pmflags & PMf_SKIPWHITE)
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sv_catpv(tmpsv, ",SKIPWHITE");
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if (pm->op_pmflags & PMf_CONST)
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sv_catpv(tmpsv, ",CONST");
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if (pm->op_pmflags & PMf_KEEP)
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sv_catpv(tmpsv, ",KEEP");
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if (pm->op_pmflags & PMf_GLOBAL)
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sv_catpv(tmpsv, ",GLOBAL");
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if (pm->op_pmflags & PMf_CONTINUE)
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sv_catpv(tmpsv, ",CONTINUE");
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if (pm->op_pmflags & PMf_RETAINT)
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sv_catpv(tmpsv, ",RETAINT");
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if (pm->op_pmflags & PMf_EVAL)
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sv_catpv(tmpsv, ",EVAL");
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dump("PMFLAGS = (%s)\n", SvCUR(tmpsv) ? SvPVX(tmpsv) + 1 : "");
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SvREFCNT_dec(tmpsv);
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}
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PL_dumplvl--;
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dump("}\n");
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#endif /* DEBUGGING */
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}
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STATIC void
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dump(char *pat,...)
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{
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#ifdef DEBUGGING
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I32 i;
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va_list args;
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va_start(args, pat);
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for (i = PL_dumplvl*4; i; i--)
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(void)PerlIO_putc(Perl_debug_log,' ');
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PerlIO_vprintf(Perl_debug_log,pat,args);
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va_end(args);
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#endif /* DEBUGGING */
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}
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