/
dump.c
2586 lines (2334 loc) · 78.9 KB
/
dump.c
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/* dump.c
*
* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
* 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others
*
* 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.'
*
* [p.220 of _The Lord of the Rings_, II/i: "Many Meetings"]
*/
/* This file contains utility routines to dump the contents of SV and OP
* structures, as used by command-line options like -Dt and -Dx, and
* by Devel::Peek.
*
* It also holds the debugging version of the runops function.
=head1 Display and Dump functions
*/
#include "EXTERN.h"
#define PERL_IN_DUMP_C
#include "perl.h"
#include "regcomp.h"
static const char* const svtypenames[SVt_LAST] = {
"NULL",
"IV",
"NV",
"PV",
"INVLIST",
"PVIV",
"PVNV",
"PVMG",
"REGEXP",
"PVGV",
"PVLV",
"PVAV",
"PVHV",
"PVCV",
"PVFM",
"PVIO"
};
static const char* const svshorttypenames[SVt_LAST] = {
"UNDEF",
"IV",
"NV",
"PV",
"INVLST",
"PVIV",
"PVNV",
"PVMG",
"REGEXP",
"GV",
"PVLV",
"AV",
"HV",
"CV",
"FM",
"IO"
};
struct flag_to_name {
U32 flag;
const char *name;
};
static void
S_append_flags(pTHX_ SV *sv, U32 flags, const struct flag_to_name *start,
const struct flag_to_name *const end)
{
do {
if (flags & start->flag)
sv_catpv(sv, start->name);
} while (++start < end);
}
#define append_flags(sv, f, flags) \
S_append_flags(aTHX_ (sv), (f), (flags), C_ARRAY_END(flags))
#define generic_pv_escape(sv,s,len,utf8) pv_escape( (sv), (s), (len), \
(len) * (4+UTF8_MAXBYTES) + 1, NULL, \
PERL_PV_ESCAPE_NONASCII | PERL_PV_ESCAPE_DWIM \
| ((utf8) ? PERL_PV_ESCAPE_UNI : 0) )
/*
=for apidoc pv_escape
Escapes at most the first "count" chars of pv and puts the results into
dsv such that the size of the escaped string will not exceed "max" chars
and will not contain any incomplete escape sequences. The number of bytes
escaped will be returned in the STRLEN *escaped parameter if it is not null.
When the dsv parameter is null no escaping actually occurs, but the number
of bytes that would be escaped were it not null will be calculated.
If flags contains PERL_PV_ESCAPE_QUOTE then any double quotes in the string
will also be escaped.
Normally the SV will be cleared before the escaped string is prepared,
but when PERL_PV_ESCAPE_NOCLEAR is set this will not occur.
If PERL_PV_ESCAPE_UNI is set then the input string is treated as UTF-8
if PERL_PV_ESCAPE_UNI_DETECT is set then the input string is scanned
using C<is_utf8_string()> to determine if it is UTF-8.
If PERL_PV_ESCAPE_ALL is set then all input chars will be output
using C<\x01F1> style escapes, otherwise if PERL_PV_ESCAPE_NONASCII is set, only
non-ASCII chars will be escaped using this style; otherwise, only chars above
255 will be so escaped; other non printable chars will use octal or
common escaped patterns like C<\n>.
Otherwise, if PERL_PV_ESCAPE_NOBACKSLASH
then all chars below 255 will be treated as printable and
will be output as literals.
If PERL_PV_ESCAPE_FIRSTCHAR is set then only the first char of the
string will be escaped, regardless of max. If the output is to be in hex,
then it will be returned as a plain hex
sequence. Thus the output will either be a single char,
an octal escape sequence, a special escape like C<\n> or a hex value.
If PERL_PV_ESCAPE_RE is set then the escape char used will be a '%' and
not a '\\'. This is because regexes very often contain backslashed
sequences, whereas '%' is not a particularly common character in patterns.
Returns a pointer to the escaped text as held by dsv.
=cut
*/
#define PV_ESCAPE_OCTBUFSIZE 32
char *
Perl_pv_escape( pTHX_ SV *dsv, char const * const str,
const STRLEN count, const STRLEN max,
STRLEN * const escaped, const U32 flags )
{
const char esc = (flags & PERL_PV_ESCAPE_RE) ? '%' : '\\';
const char dq = (flags & PERL_PV_ESCAPE_QUOTE) ? '"' : esc;
char octbuf[PV_ESCAPE_OCTBUFSIZE] = "%123456789ABCDF";
STRLEN wrote = 0; /* chars written so far */
STRLEN chsize = 0; /* size of data to be written */
STRLEN readsize = 1; /* size of data just read */
bool isuni= flags & PERL_PV_ESCAPE_UNI ? 1 : 0; /* is this UTF-8 */
const char *pv = str;
const char * const end = pv + count; /* end of string */
octbuf[0] = esc;
PERL_ARGS_ASSERT_PV_ESCAPE;
if (dsv && !(flags & PERL_PV_ESCAPE_NOCLEAR)) {
/* This won't alter the UTF-8 flag */
sv_setpvs(dsv, "");
}
if ((flags & PERL_PV_ESCAPE_UNI_DETECT) && is_utf8_string((U8*)pv, count))
isuni = 1;
for ( ; (pv < end && (!max || (wrote < max))) ; pv += readsize ) {
const UV u= (isuni) ? utf8_to_uvchr_buf((U8*)pv, (U8*) end, &readsize) : (U8)*pv;
const U8 c = (U8)u & 0xFF;
if ( ( u > 255 )
|| (flags & PERL_PV_ESCAPE_ALL)
|| (( ! isASCII(u) ) && (flags & (PERL_PV_ESCAPE_NONASCII|PERL_PV_ESCAPE_DWIM))))
{
if (flags & PERL_PV_ESCAPE_FIRSTCHAR)
chsize = my_snprintf( octbuf, PV_ESCAPE_OCTBUFSIZE,
"%"UVxf, u);
else
chsize = my_snprintf( octbuf, PV_ESCAPE_OCTBUFSIZE,
((flags & PERL_PV_ESCAPE_DWIM) && !isuni)
? "%cx%02"UVxf
: "%cx{%02"UVxf"}", esc, u);
} else if (flags & PERL_PV_ESCAPE_NOBACKSLASH) {
chsize = 1;
} else {
if ( (c == dq) || (c == esc) || !isPRINT(c) ) {
chsize = 2;
switch (c) {
case '\\' : /* FALLTHROUGH */
case '%' : if ( c == esc ) {
octbuf[1] = esc;
} else {
chsize = 1;
}
break;
case '\v' : octbuf[1] = 'v'; break;
case '\t' : octbuf[1] = 't'; break;
case '\r' : octbuf[1] = 'r'; break;
case '\n' : octbuf[1] = 'n'; break;
case '\f' : octbuf[1] = 'f'; break;
case '"' :
if ( dq == '"' )
octbuf[1] = '"';
else
chsize = 1;
break;
default:
if ( (flags & PERL_PV_ESCAPE_DWIM) && c != '\0' ) {
chsize = my_snprintf( octbuf, PV_ESCAPE_OCTBUFSIZE,
isuni ? "%cx{%02"UVxf"}" : "%cx%02"UVxf,
esc, u);
}
else if ( (pv+readsize < end) && isDIGIT((U8)*(pv+readsize)) )
chsize = my_snprintf( octbuf, PV_ESCAPE_OCTBUFSIZE,
"%c%03o", esc, c);
else
chsize = my_snprintf( octbuf, PV_ESCAPE_OCTBUFSIZE,
"%c%o", esc, c);
}
} else {
chsize = 1;
}
}
if ( max && (wrote + chsize > max) ) {
break;
} else if (chsize > 1) {
if (dsv)
sv_catpvn(dsv, octbuf, chsize);
wrote += chsize;
} else {
/* If PERL_PV_ESCAPE_NOBACKSLASH is set then non-ASCII bytes
can be appended raw to the dsv. If dsv happens to be
UTF-8 then we need catpvf to upgrade them for us.
Or add a new API call sv_catpvc(). Think about that name, and
how to keep it clear that it's unlike the s of catpvs, which is
really an array of octets, not a string. */
if (dsv)
Perl_sv_catpvf( aTHX_ dsv, "%c", c);
wrote++;
}
if ( flags & PERL_PV_ESCAPE_FIRSTCHAR )
break;
}
if (escaped != NULL)
*escaped= pv - str;
return dsv ? SvPVX(dsv) : NULL;
}
/*
=for apidoc pv_pretty
Converts a string into something presentable, handling escaping via
pv_escape() and supporting quoting and ellipses.
If the PERL_PV_PRETTY_QUOTE flag is set then the result will be
double quoted with any double quotes in the string escaped. Otherwise
if the PERL_PV_PRETTY_LTGT flag is set then the result be wrapped in
angle brackets.
If the PERL_PV_PRETTY_ELLIPSES flag is set and not all characters in
string were output then an ellipsis C<...> will be appended to the
string. Note that this happens AFTER it has been quoted.
If start_color is non-null then it will be inserted after the opening
quote (if there is one) but before the escaped text. If end_color
is non-null then it will be inserted after the escaped text but before
any quotes or ellipses.
Returns a pointer to the prettified text as held by dsv.
=cut
*/
char *
Perl_pv_pretty( pTHX_ SV *dsv, char const * const str, const STRLEN count,
const STRLEN max, char const * const start_color, char const * const end_color,
const U32 flags )
{
const U8 *quotes = (U8*)((flags & PERL_PV_PRETTY_QUOTE) ? "\"\"" :
(flags & PERL_PV_PRETTY_LTGT) ? "<>" : NULL);
STRLEN escaped;
STRLEN max_adjust= 0;
STRLEN orig_cur;
PERL_ARGS_ASSERT_PV_PRETTY;
if (!(flags & PERL_PV_PRETTY_NOCLEAR)) {
/* This won't alter the UTF-8 flag */
sv_setpvs(dsv, "");
}
orig_cur= SvCUR(dsv);
if ( quotes )
Perl_sv_catpvf(aTHX_ dsv, "%c", quotes[0]);
if ( start_color != NULL )
sv_catpv(dsv, start_color);
if ((flags & PERL_PV_PRETTY_EXACTSIZE)) {
if (quotes)
max_adjust += 2;
assert(max > max_adjust);
pv_escape( NULL, str, count, max - max_adjust, &escaped, flags );
if ( (flags & PERL_PV_PRETTY_ELLIPSES) && ( escaped < count ) )
max_adjust += 3;
assert(max > max_adjust);
}
pv_escape( dsv, str, count, max - max_adjust, &escaped, flags | PERL_PV_ESCAPE_NOCLEAR );
if ( end_color != NULL )
sv_catpv(dsv, end_color);
if ( quotes )
Perl_sv_catpvf(aTHX_ dsv, "%c", quotes[1]);
if ( (flags & PERL_PV_PRETTY_ELLIPSES) && ( escaped < count ) )
sv_catpvs(dsv, "...");
if ((flags & PERL_PV_PRETTY_EXACTSIZE)) {
while( SvCUR(dsv) - orig_cur < max )
sv_catpvs(dsv," ");
}
return SvPVX(dsv);
}
/*
=for apidoc pv_display
Similar to
pv_escape(dsv,pv,cur,pvlim,PERL_PV_ESCAPE_QUOTE);
except that an additional "\0" will be appended to the string when
len > cur and pv[cur] is "\0".
Note that the final string may be up to 7 chars longer than pvlim.
=cut
*/
char *
Perl_pv_display(pTHX_ SV *dsv, const char *pv, STRLEN cur, STRLEN len, STRLEN pvlim)
{
PERL_ARGS_ASSERT_PV_DISPLAY;
pv_pretty( dsv, pv, cur, pvlim, NULL, NULL, PERL_PV_PRETTY_DUMP);
if (len > cur && pv[cur] == '\0')
sv_catpvs( dsv, "\\0");
return SvPVX(dsv);
}
char *
Perl_sv_peek(pTHX_ SV *sv)
{
dVAR;
SV * const t = sv_newmortal();
int unref = 0;
U32 type;
sv_setpvs(t, "");
retry:
if (!sv) {
sv_catpv(t, "VOID");
goto finish;
}
else if (sv == (const SV *)0x55555555 || ((char)SvTYPE(sv)) == 'U') {
/* detect data corruption under memory poisoning */
sv_catpv(t, "WILD");
goto finish;
}
else if (sv == &PL_sv_undef || sv == &PL_sv_no || sv == &PL_sv_yes || sv == &PL_sv_placeholder) {
if (sv == &PL_sv_undef) {
sv_catpv(t, "SV_UNDEF");
if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
SVs_GMG|SVs_SMG|SVs_RMG)) &&
SvREADONLY(sv))
goto finish;
}
else if (sv == &PL_sv_no) {
sv_catpv(t, "SV_NO");
if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
SVs_GMG|SVs_SMG|SVs_RMG)) &&
!(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
SVp_POK|SVp_NOK)) &&
SvCUR(sv) == 0 &&
SvNVX(sv) == 0.0)
goto finish;
}
else if (sv == &PL_sv_yes) {
sv_catpv(t, "SV_YES");
if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
SVs_GMG|SVs_SMG|SVs_RMG)) &&
!(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
SVp_POK|SVp_NOK)) &&
SvCUR(sv) == 1 &&
SvPVX_const(sv) && *SvPVX_const(sv) == '1' &&
SvNVX(sv) == 1.0)
goto finish;
}
else {
sv_catpv(t, "SV_PLACEHOLDER");
if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
SVs_GMG|SVs_SMG|SVs_RMG)) &&
SvREADONLY(sv))
goto finish;
}
sv_catpv(t, ":");
}
else if (SvREFCNT(sv) == 0) {
sv_catpv(t, "(");
unref++;
}
else if (DEBUG_R_TEST_) {
int is_tmp = 0;
SSize_t ix;
/* is this SV on the tmps stack? */
for (ix=PL_tmps_ix; ix>=0; ix--) {
if (PL_tmps_stack[ix] == sv) {
is_tmp = 1;
break;
}
}
if (SvREFCNT(sv) > 1)
Perl_sv_catpvf(aTHX_ t, "<%"UVuf"%s>", (UV)SvREFCNT(sv),
is_tmp ? "T" : "");
else if (is_tmp)
sv_catpv(t, "<T>");
}
if (SvROK(sv)) {
sv_catpv(t, "\\");
if (SvCUR(t) + unref > 10) {
SvCUR_set(t, unref + 3);
*SvEND(t) = '\0';
sv_catpv(t, "...");
goto finish;
}
sv = SvRV(sv);
goto retry;
}
type = SvTYPE(sv);
if (type == SVt_PVCV) {
SV * const tmp = newSVpvs_flags("", SVs_TEMP);
GV* gvcv = CvGV(sv);
Perl_sv_catpvf(aTHX_ t, "CV(%s)", gvcv
? generic_pv_escape( tmp, GvNAME(gvcv), GvNAMELEN(gvcv), GvNAMEUTF8(gvcv))
: "");
goto finish;
} else if (type < SVt_LAST) {
sv_catpv(t, svshorttypenames[type]);
if (type == SVt_NULL)
goto finish;
} else {
sv_catpv(t, "FREED");
goto finish;
}
if (SvPOKp(sv)) {
if (!SvPVX_const(sv))
sv_catpv(t, "(null)");
else {
SV * const tmp = newSVpvs("");
sv_catpv(t, "(");
if (SvOOK(sv)) {
STRLEN delta;
SvOOK_offset(sv, delta);
Perl_sv_catpvf(aTHX_ t, "[%s]", pv_display(tmp, SvPVX_const(sv)-delta, delta, 0, 127));
}
Perl_sv_catpvf(aTHX_ t, "%s)", pv_display(tmp, SvPVX_const(sv), SvCUR(sv), SvLEN(sv), 127));
if (SvUTF8(sv))
Perl_sv_catpvf(aTHX_ t, " [UTF8 \"%s\"]",
sv_uni_display(tmp, sv, 6 * SvCUR(sv),
UNI_DISPLAY_QQ));
SvREFCNT_dec_NN(tmp);
}
}
else if (SvNOKp(sv)) {
STORE_NUMERIC_LOCAL_SET_STANDARD();
Perl_sv_catpvf(aTHX_ t, "(%"NVgf")",SvNVX(sv));
RESTORE_NUMERIC_LOCAL();
}
else if (SvIOKp(sv)) {
if (SvIsUV(sv))
Perl_sv_catpvf(aTHX_ t, "(%"UVuf")", (UV)SvUVX(sv));
else
Perl_sv_catpvf(aTHX_ t, "(%"IVdf")", (IV)SvIVX(sv));
}
else
sv_catpv(t, "()");
finish:
while (unref--)
sv_catpv(t, ")");
if (TAINTING_get && sv && SvTAINTED(sv))
sv_catpv(t, " [tainted]");
return SvPV_nolen(t);
}
/*
=head1 Debugging Utilities
*/
void
Perl_dump_indent(pTHX_ I32 level, PerlIO *file, const char* pat, ...)
{
va_list args;
PERL_ARGS_ASSERT_DUMP_INDENT;
va_start(args, pat);
dump_vindent(level, file, pat, &args);
va_end(args);
}
void
Perl_dump_vindent(pTHX_ I32 level, PerlIO *file, const char* pat, va_list *args)
{
PERL_ARGS_ASSERT_DUMP_VINDENT;
PerlIO_printf(file, "%*s", (int)(level*PL_dumpindent), "");
PerlIO_vprintf(file, pat, *args);
}
/*
=for apidoc dump_all
Dumps the entire optree of the current program starting at C<PL_main_root> to
C<STDERR>. Also dumps the optrees for all visible subroutines in
C<PL_defstash>.
=cut
*/
void
Perl_dump_all(pTHX)
{
dump_all_perl(FALSE);
}
void
Perl_dump_all_perl(pTHX_ bool justperl)
{
PerlIO_setlinebuf(Perl_debug_log);
if (PL_main_root)
op_dump(PL_main_root);
dump_packsubs_perl(PL_defstash, justperl);
}
/*
=for apidoc dump_packsubs
Dumps the optrees for all visible subroutines in C<stash>.
=cut
*/
void
Perl_dump_packsubs(pTHX_ const HV *stash)
{
PERL_ARGS_ASSERT_DUMP_PACKSUBS;
dump_packsubs_perl(stash, FALSE);
}
void
Perl_dump_packsubs_perl(pTHX_ const HV *stash, bool justperl)
{
I32 i;
PERL_ARGS_ASSERT_DUMP_PACKSUBS_PERL;
if (!HvARRAY(stash))
return;
for (i = 0; i <= (I32) HvMAX(stash); i++) {
const HE *entry;
for (entry = HvARRAY(stash)[i]; entry; entry = HeNEXT(entry)) {
GV * gv = (GV *)HeVAL(entry);
if (SvROK(gv) && SvTYPE(SvRV(gv)) == SVt_PVCV)
/* unfake a fake GV */
(void)CvGV(SvRV(gv));
if (SvTYPE(gv) != SVt_PVGV || !GvGP(gv))
continue;
if (GvCVu(gv))
dump_sub_perl(gv, justperl);
if (GvFORM(gv))
dump_form(gv);
if (HeKEY(entry)[HeKLEN(entry)-1] == ':') {
const HV * const hv = GvHV(gv);
if (hv && (hv != PL_defstash))
dump_packsubs_perl(hv, justperl); /* nested package */
}
}
}
}
void
Perl_dump_sub(pTHX_ const GV *gv)
{
PERL_ARGS_ASSERT_DUMP_SUB;
dump_sub_perl(gv, FALSE);
}
void
Perl_dump_sub_perl(pTHX_ const GV *gv, bool justperl)
{
STRLEN len;
SV * const sv = newSVpvs_flags("", SVs_TEMP);
SV *tmpsv;
const char * name;
PERL_ARGS_ASSERT_DUMP_SUB_PERL;
if (justperl && (CvISXSUB(GvCV(gv)) || !CvROOT(GvCV(gv))))
return;
tmpsv = newSVpvs_flags("", SVs_TEMP);
gv_fullname3(sv, gv, NULL);
name = SvPV_const(sv, len);
Perl_dump_indent(aTHX_ 0, Perl_debug_log, "\nSUB %s = ",
generic_pv_escape(tmpsv, name, len, SvUTF8(sv)));
if (CvISXSUB(GvCV(gv)))
Perl_dump_indent(aTHX_ 0, Perl_debug_log, "(xsub 0x%"UVxf" %d)\n",
PTR2UV(CvXSUB(GvCV(gv))),
(int)CvXSUBANY(GvCV(gv)).any_i32);
else if (CvROOT(GvCV(gv)))
op_dump(CvROOT(GvCV(gv)));
else
Perl_dump_indent(aTHX_ 0, Perl_debug_log, "<undef>\n");
}
void
Perl_dump_form(pTHX_ const GV *gv)
{
SV * const sv = sv_newmortal();
PERL_ARGS_ASSERT_DUMP_FORM;
gv_fullname3(sv, gv, NULL);
Perl_dump_indent(aTHX_ 0, Perl_debug_log, "\nFORMAT %s = ", SvPVX_const(sv));
if (CvROOT(GvFORM(gv)))
op_dump(CvROOT(GvFORM(gv)));
else
Perl_dump_indent(aTHX_ 0, Perl_debug_log, "<undef>\n");
}
void
Perl_dump_eval(pTHX)
{
op_dump(PL_eval_root);
}
void
Perl_do_pmop_dump(pTHX_ I32 level, PerlIO *file, const PMOP *pm)
{
char ch;
PERL_ARGS_ASSERT_DO_PMOP_DUMP;
if (!pm) {
Perl_dump_indent(aTHX_ level, file, "{}\n");
return;
}
Perl_dump_indent(aTHX_ level, file, "{\n");
level++;
if (pm->op_pmflags & PMf_ONCE)
ch = '?';
else
ch = '/';
if (PM_GETRE(pm))
Perl_dump_indent(aTHX_ level, file, "PMf_PRE %c%.*s%c%s\n",
ch,(int)RX_PRELEN(PM_GETRE(pm)), RX_PRECOMP(PM_GETRE(pm)), ch,
(pm->op_private & OPpRUNTIME) ? " (RUNTIME)" : "");
else
Perl_dump_indent(aTHX_ level, file, "PMf_PRE (RUNTIME)\n");
if (pm->op_type != OP_PUSHRE && pm->op_pmreplrootu.op_pmreplroot) {
Perl_dump_indent(aTHX_ level, file, "PMf_REPL = ");
op_dump(pm->op_pmreplrootu.op_pmreplroot);
}
if (pm->op_code_list) {
if (pm->op_pmflags & PMf_CODELIST_PRIVATE) {
Perl_dump_indent(aTHX_ level, file, "CODE_LIST =\n");
do_op_dump(level, file, pm->op_code_list);
}
else
Perl_dump_indent(aTHX_ level, file, "CODE_LIST = 0x%"UVxf"\n",
PTR2UV(pm->op_code_list));
}
if (pm->op_pmflags || (PM_GETRE(pm) && RX_CHECK_SUBSTR(PM_GETRE(pm)))) {
SV * const tmpsv = pm_description(pm);
Perl_dump_indent(aTHX_ level, file, "PMFLAGS = (%s)\n", SvCUR(tmpsv) ? SvPVX_const(tmpsv) + 1 : "");
SvREFCNT_dec_NN(tmpsv);
}
Perl_dump_indent(aTHX_ level-1, file, "}\n");
}
const struct flag_to_name pmflags_flags_names[] = {
{PMf_CONST, ",CONST"},
{PMf_KEEP, ",KEEP"},
{PMf_GLOBAL, ",GLOBAL"},
{PMf_CONTINUE, ",CONTINUE"},
{PMf_RETAINT, ",RETAINT"},
{PMf_EVAL, ",EVAL"},
{PMf_NONDESTRUCT, ",NONDESTRUCT"},
{PMf_HAS_CV, ",HAS_CV"},
{PMf_CODELIST_PRIVATE, ",CODELIST_PRIVATE"},
{PMf_IS_QR, ",IS_QR"}
};
static SV *
S_pm_description(pTHX_ const PMOP *pm)
{
SV * const desc = newSVpvs("");
const REGEXP * const regex = PM_GETRE(pm);
const U32 pmflags = pm->op_pmflags;
PERL_ARGS_ASSERT_PM_DESCRIPTION;
if (pmflags & PMf_ONCE)
sv_catpv(desc, ",ONCE");
#ifdef USE_ITHREADS
if (SvREADONLY(PL_regex_pad[pm->op_pmoffset]))
sv_catpv(desc, ":USED");
#else
if (pmflags & PMf_USED)
sv_catpv(desc, ":USED");
#endif
if (regex) {
if (RX_ISTAINTED(regex))
sv_catpv(desc, ",TAINTED");
if (RX_CHECK_SUBSTR(regex)) {
if (!(RX_INTFLAGS(regex) & PREGf_NOSCAN))
sv_catpv(desc, ",SCANFIRST");
if (RX_EXTFLAGS(regex) & RXf_CHECK_ALL)
sv_catpv(desc, ",ALL");
}
if (RX_EXTFLAGS(regex) & RXf_SKIPWHITE)
sv_catpv(desc, ",SKIPWHITE");
}
append_flags(desc, pmflags, pmflags_flags_names);
return desc;
}
void
Perl_pmop_dump(pTHX_ PMOP *pm)
{
do_pmop_dump(0, Perl_debug_log, pm);
}
/* Return a unique integer to represent the address of op o.
* If it already exists in PL_op_sequence, just return it;
* otherwise add it.
* *** Note that this isn't thread-safe */
STATIC UV
S_sequence_num(pTHX_ const OP *o)
{
dVAR;
SV *op,
**seq;
const char *key;
STRLEN len;
if (!o)
return 0;
op = newSVuv(PTR2UV(o));
sv_2mortal(op);
key = SvPV_const(op, len);
if (!PL_op_sequence)
PL_op_sequence = newHV();
seq = hv_fetch(PL_op_sequence, key, len, 0);
if (seq)
return SvUV(*seq);
(void)hv_store(PL_op_sequence, key, len, newSVuv(++PL_op_seq), 0);
return PL_op_seq;
}
const struct flag_to_name op_flags_names[] = {
{OPf_KIDS, ",KIDS"},
{OPf_PARENS, ",PARENS"},
{OPf_REF, ",REF"},
{OPf_MOD, ",MOD"},
{OPf_STACKED, ",STACKED"},
{OPf_SPECIAL, ",SPECIAL"}
};
void
Perl_do_op_dump(pTHX_ I32 level, PerlIO *file, const OP *o)
{
UV seq;
const OPCODE optype = o->op_type;
PERL_ARGS_ASSERT_DO_OP_DUMP;
Perl_dump_indent(aTHX_ level, file, "{\n");
level++;
seq = sequence_num(o);
if (seq)
PerlIO_printf(file, "%-4"UVuf, seq);
else
PerlIO_printf(file, "????");
PerlIO_printf(file,
"%*sTYPE = %s ===> ",
(int)(PL_dumpindent*level-4), "", OP_NAME(o));
if (o->op_next)
PerlIO_printf(file,
o->op_type == OP_NULL ? "(%"UVuf")\n" : "%"UVuf"\n",
sequence_num(o->op_next));
else
PerlIO_printf(file, "NULL\n");
if (o->op_targ) {
if (optype == OP_NULL) {
Perl_dump_indent(aTHX_ level, file, " (was %s)\n", PL_op_name[o->op_targ]);
}
else
Perl_dump_indent(aTHX_ level, file, "TARG = %ld\n", (long)o->op_targ);
}
#ifdef DUMPADDR
Perl_dump_indent(aTHX_ level, file, "ADDR = 0x%"UVxf" => 0x%"UVxf"\n", (UV)o, (UV)o->op_next);
#endif
if (o->op_flags || o->op_slabbed || o->op_savefree || o->op_static) {
SV * const tmpsv = newSVpvs("");
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;
}
append_flags(tmpsv, o->op_flags, op_flags_names);
if (o->op_slabbed) sv_catpvs(tmpsv, ",SLABBED");
if (o->op_savefree) sv_catpvs(tmpsv, ",SAVEFREE");
if (o->op_static) sv_catpvs(tmpsv, ",STATIC");
if (o->op_folded) sv_catpvs(tmpsv, ",FOLDED");
if (o->op_lastsib) sv_catpvs(tmpsv, ",LASTSIB");
Perl_dump_indent(aTHX_ level, file, "FLAGS = (%s)\n",
SvCUR(tmpsv) ? SvPVX_const(tmpsv) + 1 : "");
}
if (o->op_private) {
U16 oppriv = o->op_private;
I16 op_ix = PL_op_private_bitdef_ix[o->op_type];
SV * tmpsv = NULL;
if (op_ix != -1) {
U16 stop = 0;
tmpsv = newSVpvs("");
for (; !stop; op_ix++) {
U16 entry = PL_op_private_bitdefs[op_ix];
U16 bit = (entry >> 2) & 7;
U16 ix = entry >> 5;
stop = (entry & 1);
if (entry & 2) {
/* bitfield */
I16 const *p = &PL_op_private_bitfields[ix];
U16 bitmin = (U16) *p++;
I16 label = *p++;
I16 enum_label;
U16 mask = 0;
U16 i;
U16 val;
for (i = bitmin; i<= bit; i++)
mask |= (1<<i);
bit = bitmin;
val = (oppriv & mask);
if ( label != -1
&& PL_op_private_labels[label] == '-'
&& PL_op_private_labels[label+1] == '\0'
)
/* display as raw number */
continue;
oppriv -= val;
val >>= bit;
enum_label = -1;
while (*p != -1) {
if (val == *p++) {
enum_label = *p;
break;
}
p++;
}
if (val == 0 && enum_label == -1)
/* don't display anonymous zero values */
continue;
sv_catpv(tmpsv, ",");
if (label != -1) {
sv_catpv(tmpsv, &PL_op_private_labels[label]);
sv_catpv(tmpsv, "=");
}
if (enum_label == -1)
Perl_sv_catpvf(aTHX_ tmpsv, "0x%"UVxf, (UV)val);
else
sv_catpv(tmpsv, &PL_op_private_labels[enum_label]);
}
else {
/* bit flag */
if ( oppriv & (1<<bit)
&& !(PL_op_private_labels[ix] == '-'
&& PL_op_private_labels[ix+1] == '\0'))
{
oppriv -= (1<<bit);
sv_catpv(tmpsv, ",");
sv_catpv(tmpsv, &PL_op_private_labels[ix]);
}
}
}
if (oppriv) {
sv_catpv(tmpsv, ",");
Perl_sv_catpvf(aTHX_ tmpsv, "0x%"UVxf, (UV)oppriv);
}
}
if (tmpsv && SvCUR(tmpsv)) {
Perl_dump_indent(aTHX_ level, file, "PRIVATE = (%s)\n", SvPVX_const(tmpsv) + 1);
} else
Perl_dump_indent(aTHX_ level, file, "PRIVATE = (0x%"UVxf")\n",
(UV)oppriv);
}
switch (optype) {
case OP_AELEMFAST:
case OP_GVSV:
case OP_GV:
#ifdef USE_ITHREADS
Perl_dump_indent(aTHX_ level, file, "PADIX = %" IVdf "\n", (IV)cPADOPo->op_padix);
#else
if ( ! (o->op_flags & OPf_SPECIAL)) { /* not lexical */
if (cSVOPo->op_sv) {
STRLEN len;
const char * name;
SV * const tmpsv = newSVpvs_flags("", SVs_TEMP);
SV * const tmpsv2 = newSVpvs_flags("", SVs_TEMP);
gv_fullname3(tmpsv, MUTABLE_GV(cSVOPo->op_sv), NULL);
name = SvPV_const(tmpsv, len);
Perl_dump_indent(aTHX_ level, file, "GV = %s\n",
generic_pv_escape( tmpsv2, name, len, SvUTF8(tmpsv)));
}
else
Perl_dump_indent(aTHX_ level, file, "GV = NULL\n");
}
#endif
break;
case OP_MULTIDEREF:
{
UNOP_AUX_item *items = cUNOP_AUXo->op_aux;
UV i, count = items[-1].uv;
Perl_dump_indent(aTHX_ level, file, "ARGS = \n");
for (i=0; i < count; i++)
Perl_dump_indent(aTHX_ level+1, file, "%"UVuf" => 0x%"UVxf"\n",
i, items[i].uv);
}
case OP_CONST:
case OP_HINTSEVAL:
case OP_METHOD_NAMED:
case OP_METHOD_SUPER:
case OP_METHOD_REDIR:
case OP_METHOD_REDIR_SUPER:
#ifndef USE_ITHREADS
/* with ITHREADS, consts are stored in the pad, and the right pad
* may not be active here, so skip */
Perl_dump_indent(aTHX_ level, file, "SV = %s\n", SvPEEK(cMETHOPx_meth(o)));
#endif
break;
case OP_NULL:
if (o->op_targ != OP_NEXTSTATE && o->op_targ != OP_DBSTATE)
break;
/* FALLTHROUGH */
case OP_NEXTSTATE:
case OP_DBSTATE:
if (CopLINE(cCOPo))
Perl_dump_indent(aTHX_ level, file, "LINE = %"UVuf"\n",
(UV)CopLINE(cCOPo));
if (CopSTASHPV(cCOPo)) {
SV* tmpsv = newSVpvs_flags("", SVs_TEMP);
HV *stash = CopSTASH(cCOPo);
const char * const hvname = HvNAME_get(stash);
Perl_dump_indent(aTHX_ level, file, "PACKAGE = \"%s\"\n",
generic_pv_escape(tmpsv, hvname,