#include "EXTERN.h"
#define PERL_IN_SCOPE_C
#include "perl.h"
+#include "feature.h"
SV**
-Perl_stack_grow(pTHX_ SV **sp, SV **p, int n)
+Perl_stack_grow(pTHX_ SV **sp, SV **p, SSize_t n)
{
- dVAR;
+ SSize_t extra;
+ SSize_t current = (p - PL_stack_base);
PERL_ARGS_ASSERT_STACK_GROW;
+ if (UNLIKELY(n < 0))
+ Perl_croak(aTHX_
+ "panic: stack_grow() negative count (%" IVdf ")", (IV)n);
+
PL_stack_sp = sp;
-#ifndef STRESS_REALLOC
- av_extend(PL_curstack, (p - PL_stack_base) + (n) + 128);
+ extra =
+#ifdef STRESS_REALLOC
+ 1;
#else
- av_extend(PL_curstack, (p - PL_stack_base) + (n) + 1);
+ 128;
#endif
+ /* If the total might wrap, panic instead. This is really testing
+ * that (current + n + extra < Stack_off_t_MAX), but done in a way that
+ * can't wrap */
+ if (UNLIKELY( current > Stack_off_t_MAX - extra
+ || current + extra > Stack_off_t_MAX - n
+ ))
+ /* diag_listed_as: Out of memory during %s extend */
+ Perl_croak(aTHX_ "Out of memory during stack extend");
+
+ av_extend(PL_curstack, current + n + extra);
+#ifdef DEBUGGING
+ PL_curstackinfo->si_stack_hwm = current + n + extra;
+#endif
+
return PL_stack_sp;
}
-#ifndef STRESS_REALLOC
-#define GROW(old) ((old) * 3 / 2)
-#else
+#ifdef STRESS_REALLOC
#define GROW(old) ((old) + 1)
+#else
+#define GROW(old) ((old) * 3 / 2)
#endif
+/* for backcomp */
PERL_SI *
Perl_new_stackinfo(pTHX_ I32 stitems, I32 cxitems)
{
- dVAR;
+ return new_stackinfo_flags(stitems, cxitems, 0);
+}
+
+/* current flag meanings:
+ * 1 make the new arg stack AvREAL
+ */
+
+PERL_SI *
+Perl_new_stackinfo_flags(pTHX_ I32 stitems, I32 cxitems, UV flags)
+{
PERL_SI *si;
Newx(si, 1, PERL_SI);
si->si_stack = newAV();
- AvREAL_off(si->si_stack);
+ if (!(flags & 1))
+ AvREAL_off(si->si_stack);
av_extend(si->si_stack, stitems > 0 ? stitems-1 : 0);
AvALLOC(si->si_stack)[0] = &PL_sv_undef;
AvFILLp(si->si_stack) = 0;
+#ifdef PERL_RC_STACK
+ si->si_stack_nonrc_base = 0;
+#endif
si->si_prev = 0;
si->si_next = 0;
si->si_cxmax = cxitems - 1;
si->si_cxix = -1;
+ si->si_cxsubix = -1;
si->si_type = PERLSI_UNDEF;
Newx(si->si_cxstack, cxitems, PERL_CONTEXT);
- /* Without any kind of initialising PUSHSUBST()
+ /* Without any kind of initialising CX_PUSHSUBST()
* in pp_subst() will read uninitialised heap. */
PoisonNew(si->si_cxstack, cxitems, PERL_CONTEXT);
return si;
I32
Perl_cxinc(pTHX)
{
- dVAR;
const IV old_max = cxstack_max;
- cxstack_max = GROW(cxstack_max);
- Renew(cxstack, cxstack_max + 1, PERL_CONTEXT); /* XXX should fix CXINC macro */
+ const IV new_max = GROW(cxstack_max);
+ Renew(cxstack, new_max + 1, PERL_CONTEXT);
+ cxstack_max = new_max;
/* Without any kind of initialising deep enough recursion
* will end up reading uninitialised PERL_CONTEXTs. */
- PoisonNew(cxstack + old_max + 1, cxstack_max - old_max, PERL_CONTEXT);
+ PoisonNew(cxstack + old_max + 1, new_max - old_max, PERL_CONTEXT);
return cxstack_ix + 1;
}
+/*
+=for apidoc_section $callback
+=for apidoc push_scope
+
+Implements L<perlapi/C<ENTER>>
+
+=cut
+*/
+
void
Perl_push_scope(pTHX)
{
- dVAR;
- if (PL_scopestack_ix == PL_scopestack_max) {
- PL_scopestack_max = GROW(PL_scopestack_max);
- Renew(PL_scopestack, PL_scopestack_max, I32);
+ if (UNLIKELY(PL_scopestack_ix == PL_scopestack_max)) {
+ const IV new_max = GROW(PL_scopestack_max);
+ Renew(PL_scopestack, new_max, I32);
+#ifdef DEBUGGING
+ Renew(PL_scopestack_name, new_max, const char*);
+#endif
+ PL_scopestack_max = new_max;
}
+#ifdef DEBUGGING
+ PL_scopestack_name[PL_scopestack_ix] = "unknown";
+#endif
PL_scopestack[PL_scopestack_ix++] = PL_savestack_ix;
}
+/*
+=for apidoc_section $callback
+=for apidoc pop_scope
+
+Implements L<perlapi/C<LEAVE>>
+
+=cut
+*/
+
void
Perl_pop_scope(pTHX)
{
- dVAR;
const I32 oldsave = PL_scopestack[--PL_scopestack_ix];
LEAVE_SCOPE(oldsave);
}
-void
+Stack_off_t *
Perl_markstack_grow(pTHX)
{
- dVAR;
const I32 oldmax = PL_markstack_max - PL_markstack;
const I32 newmax = GROW(oldmax);
- Renew(PL_markstack, newmax, I32);
- PL_markstack_ptr = PL_markstack + oldmax;
+ Renew(PL_markstack, newmax, Stack_off_t);
PL_markstack_max = PL_markstack + newmax;
+ PL_markstack_ptr = PL_markstack + oldmax;
+ DEBUG_s(DEBUG_v(PerlIO_printf(Perl_debug_log,
+ "MARK grow %p %" IVdf " by %" IVdf "\n",
+ PL_markstack_ptr, (IV)*PL_markstack_ptr, (IV)oldmax)));
+ return PL_markstack_ptr;
}
void
Perl_savestack_grow(pTHX)
{
- dVAR;
- PL_savestack_max = GROW(PL_savestack_max) + 4;
- Renew(PL_savestack, PL_savestack_max, ANY);
+ const I32 by = PL_savestack_max - PL_savestack_ix;
+ Perl_savestack_grow_cnt(aTHX_ by);
}
void
Perl_savestack_grow_cnt(pTHX_ I32 need)
{
- dVAR;
- PL_savestack_max = PL_savestack_ix + need;
- Renew(PL_savestack, PL_savestack_max, ANY);
+ /* NOTE: PL_savestack_max and PL_savestack_ix are I32.
+ *
+ * This makes sense when you consider that having I32_MAX items on
+ * the stack would be quite large.
+ *
+ * However, we use IV here so that we can detect if the new requested
+ * amount is larger than I32_MAX.
+ */
+ const IV new_floor = PL_savestack_max + need; /* what we need */
+ /* the GROW() macro normally does scales by 1.5 but under
+ * STRESS_REALLOC it simply adds 1 */
+ IV new_max = GROW(new_floor); /* and some extra */
+
+ /* the new_max < PL_savestack_max is for cases where IV is I32
+ * and we have rolled over from I32_MAX to a small value */
+ if (new_max > I32_MAX || new_max < PL_savestack_max) {
+ if (new_floor > I32_MAX || new_floor < PL_savestack_max) {
+ Perl_croak(aTHX_ "panic: savestack overflows I32_MAX");
+ }
+ new_max = new_floor;
+ }
+
+ /* Note that we add an additional SS_MAXPUSH slots on top of
+ * PL_savestack_max so that SS_ADD_END(), SSGROW() etc can do
+ * a simper check and if necessary realloc *after* apparently
+ * overwriting the current PL_savestack_max. See scope.h.
+ *
+ * The +1 is because new_max/PL_savestack_max is the highest
+ * index, by Renew needs the number of items, which is one
+ * larger than the highest index. */
+ Renew(PL_savestack, new_max + SS_MAXPUSH + 1, ANY);
+ PL_savestack_max = new_max;
}
#undef GROW
-void
-Perl_tmps_grow(pTHX_ I32 n)
+/* The original function was called Perl_tmps_grow and was removed from public
+ API, Perl_tmps_grow_p is the replacement and it used in public macros but
+ isn't public itself.
+
+ Perl_tmps_grow_p takes a proposed ix. A proposed ix is PL_tmps_ix + extend_by,
+ where the result of (PL_tmps_ix + extend_by) is >= PL_tmps_max
+ Upon return, PL_tmps_stack[ix] will be a valid address. For machine code
+ optimization and register usage reasons, the proposed ix passed into
+ tmps_grow is returned to the caller which the caller can then use to write
+ an SV * to PL_tmps_stack[ix]. If the caller was using tmps_grow in
+ pre-extend mode (EXTEND_MORTAL macro), then it ignores the return value of
+ tmps_grow. Note, tmps_grow DOES NOT write ix to PL_tmps_ix, the caller
+ must assign ix or ret val of tmps_grow to PL_temps_ix themselves if that is
+ appropriate. The assignment to PL_temps_ix can happen before or after
+ tmps_grow call since tmps_grow doesn't look at PL_tmps_ix.
+ */
+
+SSize_t
+Perl_tmps_grow_p(pTHX_ SSize_t ix)
{
- dVAR;
+ SSize_t extend_to = ix;
#ifndef STRESS_REALLOC
- if (n < 128)
- n = (PL_tmps_max < 512) ? 128 : 512;
+ SSize_t grow_size = PL_tmps_max < 512 ? 128 : PL_tmps_max / 2;
+ if (extend_to > SSize_t_MAX - grow_size - 1)
+ /* trigger memwrap message or fail allocation */
+ extend_to = SSize_t_MAX-1;
+ else
+ extend_to += grow_size;
#endif
- PL_tmps_max = PL_tmps_ix + n + 1;
- Renew(PL_tmps_stack, PL_tmps_max, SV*);
+ Renew(PL_tmps_stack, extend_to + 1, SV*);
+ PL_tmps_max = extend_to + 1;
+ return ix;
}
void
Perl_free_tmps(pTHX)
{
- dVAR;
/* XXX should tmps_floor live in cxstack? */
- const I32 myfloor = PL_tmps_floor;
+ const SSize_t myfloor = PL_tmps_floor;
while (PL_tmps_ix > myfloor) { /* clean up after last statement */
- SV* const sv = PL_tmps_stack[PL_tmps_ix];
- PL_tmps_stack[PL_tmps_ix--] = NULL;
- if (sv && sv != &PL_sv_undef) {
- SvTEMP_off(sv);
- SvREFCNT_dec(sv); /* note, can modify tmps_ix!!! */
- }
+ SV* const sv = PL_tmps_stack[PL_tmps_ix--];
+#ifdef PERL_POISON
+ PoisonWith(PL_tmps_stack + PL_tmps_ix + 1, 1, SV *, 0xAB);
+#endif
+ if (LIKELY(sv)) {
+ SvTEMP_off(sv);
+ SvREFCNT_dec_NN(sv); /* note, can modify tmps_ix!!! */
+ }
}
}
+/*
+=for apidoc save_scalar_at
+
+A helper function for localizing the SV referenced by C<*sptr>.
+
+If C<SAVEf_KEEPOLDELEM> is set in in C<flags>, the function returns the input
+scalar untouched.
+
+Otherwise it replaces C<*sptr> with a new C<undef> scalar, and returns that.
+The new scalar will have the old one's magic (if any) copied to it.
+If there is such magic, and C<SAVEf_SETMAGIC> is set in in C<flags>, 'set'
+magic will be processed on the new scalar. If unset, 'set' magic will be
+skipped. The latter typically means that assignment will soon follow (I<e.g.>,
+S<C<'local $x = $y'>>), and that will handle the magic.
+
+=for apidoc Amnh ||SAVEf_KEEPOLDELEM
+=for apidoc Amnh ||SAVEf_SETMAGIC
+
+=cut
+*/
+
STATIC SV *
-S_save_scalar_at(pTHX_ SV **sptr)
+S_save_scalar_at(pTHX_ SV **sptr, const U32 flags)
{
- dVAR;
- SV * const osv = *sptr;
- register SV * const sv = *sptr = newSV(0);
+ SV * osv;
+ SV *sv;
PERL_ARGS_ASSERT_SAVE_SCALAR_AT;
- if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv) && SvTYPE(osv) != SVt_PVGV) {
- if (SvGMAGICAL(osv)) {
- const bool oldtainted = PL_tainted;
- SvFLAGS(osv) |= (SvFLAGS(osv) &
- (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
- PL_tainted = oldtainted;
- }
- mg_localize(osv, sv);
+ osv = *sptr;
+ if (flags & SAVEf_KEEPOLDELEM)
+ sv = osv;
+ else {
+ sv = (*sptr = newSV_type(SVt_NULL));
+ if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv))
+ mg_localize(osv, sv, cBOOL(flags & SAVEf_SETMAGIC));
}
+
return sv;
}
+void
+Perl_save_pushptrptr(pTHX_ void *const ptr1, void *const ptr2, const int type)
+{
+ dSS_ADD;
+ SS_ADD_PTR(ptr1);
+ SS_ADD_PTR(ptr2);
+ SS_ADD_UV(type);
+ SS_ADD_END(3);
+}
+
SV *
Perl_save_scalar(pTHX_ GV *gv)
{
- dVAR;
SV ** const sptr = &GvSVn(gv);
PERL_ARGS_ASSERT_SAVE_SCALAR;
- PL_localizing = 1;
- SvGETMAGIC(*sptr);
- PL_localizing = 0;
- SSCHECK(3);
- SSPUSHPTR(SvREFCNT_inc_simple(gv));
- SSPUSHPTR(SvREFCNT_inc(*sptr));
- SSPUSHINT(SAVEt_SV);
- return save_scalar_at(sptr);
+ if (UNLIKELY(SvGMAGICAL(*sptr))) {
+ PL_localizing = 1;
+ (void)mg_get(*sptr);
+ PL_localizing = 0;
+ }
+ save_pushptrptr(SvREFCNT_inc_simple(gv), SvREFCNT_inc(*sptr), SAVEt_SV);
+ return save_scalar_at(sptr, SAVEf_SETMAGIC); /* XXX - FIXME - see #60360 */
}
-/* Like save_sptr(), but also SvREFCNT_dec()s the new value. Can be used to
- * restore a global SV to its prior contents, freeing new value. */
+/*
+=for apidoc save_generic_svref
+
+Implements C<SAVEGENERICSV>.
+
+Like save_sptr(), but also SvREFCNT_dec()s the new value. Can be used to
+restore a global SV to its prior contents, freeing new value.
+
+=cut
+ */
+
void
Perl_save_generic_svref(pTHX_ SV **sptr)
{
- dVAR;
-
PERL_ARGS_ASSERT_SAVE_GENERIC_SVREF;
- SSCHECK(3);
- SSPUSHPTR(sptr);
- SSPUSHPTR(SvREFCNT_inc(*sptr));
- SSPUSHINT(SAVEt_GENERIC_SVREF);
+ save_pushptrptr(sptr, SvREFCNT_inc(*sptr), SAVEt_GENERIC_SVREF);
}
-/* Like save_pptr(), but also Safefree()s the new value if it is different
- * from the old one. Can be used to restore a global char* to its prior
- * contents, freeing new value. */
+
+/*
+=for apidoc save_rcpv
+
+Implements C<SAVERCPV>.
+
+Saves and restores a refcounted string, similar to what
+save_generic_svref would do for a SV*. Can be used to restore
+a refcounted string to its previous state. Performs the
+appropriate refcount counting so that nothing should leak
+or be prematurely freed.
+
+=cut
+ */
+void
+Perl_save_rcpv(pTHX_ char **prcpv) {
+ PERL_ARGS_ASSERT_SAVE_RCPV;
+ save_pushptrptr(prcpv, rcpv_copy(*prcpv), SAVEt_RCPV);
+}
+
+/*
+=for apidoc save_freercpv
+
+Implements C<SAVEFREERCPV>.
+
+Saves and frees a refcounted string. Calls rcpv_free()
+on the argument when the current pseudo block is finished.
+
+=cut
+ */
+void
+Perl_save_freercpv(pTHX_ char *rcpv) {
+ PERL_ARGS_ASSERT_SAVE_FREERCPV;
+ save_pushptr(rcpv, SAVEt_FREERCPV);
+}
+
+
+/*
+=for apidoc_section $callback
+=for apidoc save_generic_pvref
+
+Implements C<SAVEGENERICPV>.
+
+Like save_pptr(), but also Safefree()s the new value if it is different
+from the old one. Can be used to restore a global char* to its prior
+contents, freeing new value.
+
+=cut
+ */
+
void
Perl_save_generic_pvref(pTHX_ char **str)
{
- dVAR;
-
PERL_ARGS_ASSERT_SAVE_GENERIC_PVREF;
- SSCHECK(3);
- SSPUSHPTR(*str);
- SSPUSHPTR(str);
- SSPUSHINT(SAVEt_GENERIC_PVREF);
+ save_pushptrptr(*str, str, SAVEt_GENERIC_PVREF);
}
-/* Like save_generic_pvref(), but uses PerlMemShared_free() rather than Safefree().
- * Can be used to restore a shared global char* to its prior
- * contents, freeing new value. */
+/*
+=for apidoc_section $callback
+=for apidoc save_shared_pvref
+
+Implements C<SAVESHAREDPV>.
+
+Like save_generic_pvref(), but uses PerlMemShared_free() rather than Safefree().
+Can be used to restore a shared global char* to its prior
+contents, freeing new value.
+
+=cut
+ */
+
void
Perl_save_shared_pvref(pTHX_ char **str)
{
- dVAR;
-
PERL_ARGS_ASSERT_SAVE_SHARED_PVREF;
- SSCHECK(3);
- SSPUSHPTR(str);
- SSPUSHPTR(*str);
- SSPUSHINT(SAVEt_SHARED_PVREF);
+ save_pushptrptr(str, *str, SAVEt_SHARED_PVREF);
}
-/* set the SvFLAGS specified by mask to the values in val */
+
+/*
+=for apidoc_section $callback
+=for apidoc save_set_svflags
+
+Implements C<SAVESETSVFLAGS>.
+
+Set the SvFLAGS specified by mask to the values in val
+
+=cut
+ */
void
Perl_save_set_svflags(pTHX_ SV* sv, U32 mask, U32 val)
{
- dVAR;
+ dSS_ADD;
PERL_ARGS_ASSERT_SAVE_SET_SVFLAGS;
- SSCHECK(4);
- SSPUSHPTR(sv);
- SSPUSHINT(mask);
- SSPUSHINT(val);
- SSPUSHINT(SAVEt_SET_SVFLAGS);
+ SS_ADD_PTR(sv);
+ SS_ADD_INT(mask);
+ SS_ADD_INT(val);
+ SS_ADD_UV(SAVEt_SET_SVFLAGS);
+ SS_ADD_END(4);
}
+/*
+
+=for apidoc_section $GV
+
+=for apidoc save_gp
+
+Saves the current GP of gv on the save stack to be restored on scope exit.
+
+If C<empty> is true, replace the GP with a new GP.
+
+If C<empty> is false, mark C<gv> with C<GVf_INTRO> so the next reference
+assigned is localized, which is how S<C< local *foo = $someref; >> works.
+
+=cut
+*/
+
void
Perl_save_gp(pTHX_ GV *gv, I32 empty)
{
- dVAR;
-
PERL_ARGS_ASSERT_SAVE_GP;
- SSGROW(3);
- SSPUSHPTR(SvREFCNT_inc(gv));
- SSPUSHPTR(GvGP(gv));
- SSPUSHINT(SAVEt_GP);
+ /* XXX For now, we just upgrade any coderef in the stash to a full GV
+ during localisation. Maybe at some point we could make localis-
+ ation work without needing the upgrade. (In which case our
+ callers should probably call a different function, not save_gp.)
+ */
+ if (!isGV(gv)) {
+ assert(isGV_or_RVCV(gv));
+ (void)CvGV(SvRV((SV *)gv)); /* CvGV does the upgrade */
+ assert(isGV(gv));
+ }
+
+ save_pushptrptr(SvREFCNT_inc(gv), GvGP(gv), SAVEt_GP);
if (empty) {
- GP *gp = Perl_newGP(aTHX_ gv);
-
- if (GvCVu(gv))
- mro_method_changed_in(GvSTASH(gv)); /* taking a method out of circulation ("local")*/
- if (GvIOp(gv) && (IoFLAGS(GvIOp(gv)) & IOf_ARGV)) {
- gp->gp_io = newIO();
- IoFLAGS(gp->gp_io) |= IOf_ARGV|IOf_START;
- }
-#ifdef PERL_DONT_CREATE_GVSV
- if (gv == PL_errgv) {
- /* We could scatter this logic everywhere by changing the
- definition of ERRSV from GvSV() to GvSVn(), but it seems more
- efficient to do this check once here. */
- gp->gp_sv = newSV(0);
- }
-#endif
- GvGP(gv) = gp;
+ GP *gp = Perl_newGP(aTHX_ gv);
+ HV * const stash = GvSTASH(gv);
+ bool isa_changed = 0;
+
+ if (stash && HvHasENAME(stash)) {
+ if (memEQs(GvNAME(gv), GvNAMELEN(gv), "ISA"))
+ isa_changed = TRUE;
+ else if (GvCVu(gv))
+ /* taking a method out of circulation ("local")*/
+ mro_method_changed_in(stash);
+ }
+ if (GvIOp(gv) && (IoFLAGS(GvIOp(gv)) & IOf_ARGV)) {
+ gp->gp_io = newIO();
+ IoFLAGS(gp->gp_io) |= IOf_ARGV|IOf_START;
+ }
+ GvGP_set(gv,gp);
+ if (isa_changed) mro_isa_changed_in(stash);
}
else {
- gp_ref(GvGP(gv));
- GvINTRO_on(gv);
+ gp_ref(GvGP(gv));
+ GvINTRO_on(gv);
}
}
AV *
Perl_save_ary(pTHX_ GV *gv)
{
- dVAR;
AV * const oav = GvAVn(gv);
AV *av;
PERL_ARGS_ASSERT_SAVE_ARY;
- if (!AvREAL(oav) && AvREIFY(oav))
- av_reify(oav);
- SSCHECK(3);
- SSPUSHPTR(gv);
- SSPUSHPTR(oav);
- SSPUSHINT(SAVEt_AV);
+ if (UNLIKELY(!AvREAL(oav) && AvREIFY(oav)))
+ av_reify(oav);
+ save_pushptrptr(SvREFCNT_inc_simple_NN(gv), oav, SAVEt_AV);
GvAV(gv) = NULL;
av = GvAVn(gv);
- if (SvMAGIC(oav))
- mg_localize(MUTABLE_SV(oav), MUTABLE_SV(av));
+ if (UNLIKELY(SvMAGIC(oav)))
+ mg_localize(MUTABLE_SV(oav), MUTABLE_SV(av), TRUE);
return av;
}
HV *
Perl_save_hash(pTHX_ GV *gv)
{
- dVAR;
HV *ohv, *hv;
PERL_ARGS_ASSERT_SAVE_HASH;
- SSCHECK(3);
- SSPUSHPTR(gv);
- SSPUSHPTR(ohv = GvHVn(gv));
- SSPUSHINT(SAVEt_HV);
+ save_pushptrptr(
+ SvREFCNT_inc_simple_NN(gv), (ohv = GvHVn(gv)), SAVEt_HV
+ );
GvHV(gv) = NULL;
hv = GvHVn(gv);
- if (SvMAGIC(ohv))
- mg_localize(MUTABLE_SV(ohv), MUTABLE_SV(hv));
+ if (UNLIKELY(SvMAGIC(ohv)))
+ mg_localize(MUTABLE_SV(ohv), MUTABLE_SV(hv), TRUE);
return hv;
}
void
-Perl_save_item(pTHX_ register SV *item)
+Perl_save_item(pTHX_ SV *item)
{
- dVAR;
- register SV * const sv = newSVsv(item);
+ SV * const sv = newSVsv(item);
PERL_ARGS_ASSERT_SAVE_ITEM;
- SSCHECK(3);
- SSPUSHPTR(item); /* remember the pointer */
- SSPUSHPTR(sv); /* remember the value */
- SSPUSHINT(SAVEt_ITEM);
+ save_pushptrptr(item, /* remember the pointer */
+ sv, /* remember the value */
+ SAVEt_ITEM);
}
void
-Perl_save_int(pTHX_ int *intp)
+Perl_save_bool(pTHX_ bool *boolp)
{
- dVAR;
+ dSS_ADD;
- PERL_ARGS_ASSERT_SAVE_INT;
+ PERL_ARGS_ASSERT_SAVE_BOOL;
- SSCHECK(3);
- SSPUSHINT(*intp);
- SSPUSHPTR(intp);
- SSPUSHINT(SAVEt_INT);
+ SS_ADD_PTR(boolp);
+ SS_ADD_UV(SAVEt_BOOL | (*boolp << 8));
+ SS_ADD_END(2);
}
void
-Perl_save_bool(pTHX_ bool *boolp)
+Perl_save_pushi32ptr(pTHX_ const I32 i, void *const ptr, const int type)
{
- dVAR;
+ dSS_ADD;
- PERL_ARGS_ASSERT_SAVE_BOOL;
+ SS_ADD_INT(i);
+ SS_ADD_PTR(ptr);
+ SS_ADD_UV(type);
+ SS_ADD_END(3);
+}
+
+void
+Perl_save_int(pTHX_ int *intp)
+{
+ const int i = *intp;
+ UV type = ((UV)((UV)i << SAVE_TIGHT_SHIFT) | SAVEt_INT_SMALL);
+ int size = 2;
+ dSS_ADD;
- SSCHECK(3);
- SSPUSHBOOL(*boolp);
- SSPUSHPTR(boolp);
- SSPUSHINT(SAVEt_BOOL);
+ PERL_ARGS_ASSERT_SAVE_INT;
+
+ if (UNLIKELY((int)(type >> SAVE_TIGHT_SHIFT) != i)) {
+ SS_ADD_INT(i);
+ type = SAVEt_INT;
+ size++;
+ }
+ SS_ADD_PTR(intp);
+ SS_ADD_UV(type);
+ SS_ADD_END(size);
}
void
Perl_save_I8(pTHX_ I8 *bytep)
{
- dVAR;
+ dSS_ADD;
PERL_ARGS_ASSERT_SAVE_I8;
- SSCHECK(3);
- SSPUSHINT(*bytep);
- SSPUSHPTR(bytep);
- SSPUSHINT(SAVEt_I8);
+ SS_ADD_PTR(bytep);
+ SS_ADD_UV(SAVEt_I8 | ((UV)*bytep << 8));
+ SS_ADD_END(2);
}
void
Perl_save_I16(pTHX_ I16 *intp)
{
- dVAR;
+ dSS_ADD;
PERL_ARGS_ASSERT_SAVE_I16;
- SSCHECK(3);
- SSPUSHINT(*intp);
- SSPUSHPTR(intp);
- SSPUSHINT(SAVEt_I16);
+ SS_ADD_PTR(intp);
+ SS_ADD_UV(SAVEt_I16 | ((UV)*intp << 8));
+ SS_ADD_END(2);
}
void
Perl_save_I32(pTHX_ I32 *intp)
{
- dVAR;
+ const I32 i = *intp;
+ UV type = ((I32)((U32)i << SAVE_TIGHT_SHIFT) | SAVEt_I32_SMALL);
+ int size = 2;
+ dSS_ADD;
PERL_ARGS_ASSERT_SAVE_I32;
- SSCHECK(3);
- SSPUSHINT(*intp);
- SSPUSHPTR(intp);
- SSPUSHINT(SAVEt_I32);
+ if (UNLIKELY((I32)(type >> SAVE_TIGHT_SHIFT) != i)) {
+ SS_ADD_INT(i);
+ type = SAVEt_I32;
+ size++;
+ }
+ SS_ADD_PTR(intp);
+ SS_ADD_UV(type);
+ SS_ADD_END(size);
+}
+
+void
+Perl_save_strlen(pTHX_ STRLEN *ptr)
+{
+ const IV i = *ptr;
+ UV type = ((I32)((U32)i << SAVE_TIGHT_SHIFT) | SAVEt_STRLEN_SMALL);
+ int size = 2;
+ dSS_ADD;
+
+ PERL_ARGS_ASSERT_SAVE_STRLEN;
+
+ if (UNLIKELY((I32)(type >> SAVE_TIGHT_SHIFT) != i)) {
+ SS_ADD_IV(*ptr);
+ type = SAVEt_STRLEN;
+ size++;
+ }
+
+ SS_ADD_PTR(ptr);
+ SS_ADD_UV(type);
+ SS_ADD_END(size);
+}
+
+void
+Perl_save_iv(pTHX_ IV *ivp)
+{
+ PERL_ARGS_ASSERT_SAVE_IV;
+
+ SSGROW(3);
+ SSPUSHIV(*ivp);
+ SSPUSHPTR(ivp);
+ SSPUSHUV(SAVEt_IV);
}
/* Cannot use save_sptr() to store a char* since the SV** cast will
void
Perl_save_pptr(pTHX_ char **pptr)
{
- dVAR;
-
PERL_ARGS_ASSERT_SAVE_PPTR;
- SSCHECK(3);
- SSPUSHPTR(*pptr);
- SSPUSHPTR(pptr);
- SSPUSHINT(SAVEt_PPTR);
+ save_pushptrptr(*pptr, pptr, SAVEt_PPTR);
}
+/*
+=for apidoc_section $callback
+=for apidoc save_vptr
+
+Implements C<SAVEVPTR>.
+
+=cut
+ */
+
void
Perl_save_vptr(pTHX_ void *ptr)
{
- dVAR;
-
PERL_ARGS_ASSERT_SAVE_VPTR;
- SSCHECK(3);
- SSPUSHPTR(*(char**)ptr);
- SSPUSHPTR(ptr);
- SSPUSHINT(SAVEt_VPTR);
+ save_pushptrptr(*(char**)ptr, ptr, SAVEt_VPTR);
}
void
Perl_save_sptr(pTHX_ SV **sptr)
{
- dVAR;
-
PERL_ARGS_ASSERT_SAVE_SPTR;
- SSCHECK(3);
- SSPUSHPTR(*sptr);
- SSPUSHPTR(sptr);
- SSPUSHINT(SAVEt_SPTR);
+ save_pushptrptr(*sptr, sptr, SAVEt_SPTR);
}
+/*
+=for apidoc_section $callback
+=for apidoc save_padsv_and_mortalize
+
+Implements C<SAVEPADSVANDMORTALIZE>.
+
+=cut
+ */
+
void
Perl_save_padsv_and_mortalize(pTHX_ PADOFFSET off)
{
- dVAR;
- SSCHECK(4);
+ dSS_ADD;
+
ASSERT_CURPAD_ACTIVE("save_padsv");
- SSPUSHPTR(SvREFCNT_inc_simple_NN(PL_curpad[off]));
- SSPUSHPTR(PL_comppad);
- SSPUSHLONG((long)off);
- SSPUSHINT(SAVEt_PADSV_AND_MORTALIZE);
+ SS_ADD_PTR(SvREFCNT_inc_simple_NN(PL_curpad[off]));
+ SS_ADD_PTR(PL_comppad);
+ SS_ADD_UV((UV)off);
+ SS_ADD_UV(SAVEt_PADSV_AND_MORTALIZE);
+ SS_ADD_END(4);
}
void
Perl_save_hptr(pTHX_ HV **hptr)
{
- dVAR;
-
PERL_ARGS_ASSERT_SAVE_HPTR;
- SSCHECK(3);
- SSPUSHPTR(*hptr);
- SSPUSHPTR(hptr);
- SSPUSHINT(SAVEt_HPTR);
+ save_pushptrptr(*hptr, hptr, SAVEt_HPTR);
}
void
Perl_save_aptr(pTHX_ AV **aptr)
{
- dVAR;
-
PERL_ARGS_ASSERT_SAVE_APTR;
- SSCHECK(3);
- SSPUSHPTR(*aptr);
- SSPUSHPTR(aptr);
- SSPUSHINT(SAVEt_APTR);
+ save_pushptrptr(*aptr, aptr, SAVEt_APTR);
}
+/*
+=for apidoc_section $callback
+=for apidoc save_pushptr
+
+The refcnt of object C<ptr> will be decremented at the end of the current
+I<pseudo-block>. C<type> gives the type of C<ptr>, expressed as one of the
+constants in F<scope.h> whose name begins with C<SAVEt_>.
+
+This is the underlying implementation of several macros, like
+C<SAVEFREESV>.
+
+=cut
+*/
+
void
-Perl_save_freesv(pTHX_ SV *sv)
+Perl_save_pushptr(pTHX_ void *const ptr, const int type)
{
- dVAR;
- SSCHECK(2);
- SSPUSHPTR(sv);
- SSPUSHINT(SAVEt_FREESV);
+ dSS_ADD;
+ SS_ADD_PTR(ptr);
+ SS_ADD_UV(type);
+ SS_ADD_END(2);
}
void
-Perl_save_mortalizesv(pTHX_ SV *sv)
+Perl_save_clearsv(pTHX_ SV **svp)
{
- dVAR;
+ const UV offset = svp - PL_curpad;
+ const UV offset_shifted = offset << SAVE_TIGHT_SHIFT;
- PERL_ARGS_ASSERT_SAVE_MORTALIZESV;
+ PERL_ARGS_ASSERT_SAVE_CLEARSV;
- SSCHECK(2);
- SSPUSHPTR(sv);
- SSPUSHINT(SAVEt_MORTALIZESV);
-}
+ ASSERT_CURPAD_ACTIVE("save_clearsv");
+ assert(*svp);
+ SvPADSTALE_off(*svp); /* mark lexical as active */
+ if (UNLIKELY((offset_shifted >> SAVE_TIGHT_SHIFT) != offset)) {
+ Perl_croak(aTHX_ "panic: pad offset %" UVuf " out of range (%p-%p)",
+ offset, svp, PL_curpad);
+ }
-void
-Perl_save_freeop(pTHX_ OP *o)
-{
- dVAR;
- SSCHECK(2);
- SSPUSHPTR(o);
- SSPUSHINT(SAVEt_FREEOP);
+ {
+ dSS_ADD;
+ SS_ADD_UV(offset_shifted | SAVEt_CLEARSV);
+ SS_ADD_END(1);
+ }
}
void
-Perl_save_freepv(pTHX_ char *pv)
+Perl_save_delete(pTHX_ HV *hv, char *key, I32 klen)
{
- dVAR;
- SSCHECK(2);
- SSPUSHPTR(pv);
- SSPUSHINT(SAVEt_FREEPV);
+ PERL_ARGS_ASSERT_SAVE_DELETE;
+
+ save_pushptri32ptr(key, klen, SvREFCNT_inc_simple(hv), SAVEt_DELETE);
}
+/*
+=for apidoc_section $callback
+=for apidoc save_hdelete
+
+Implements C<SAVEHDELETE>.
+
+=cut
+*/
+
void
-Perl_save_clearsv(pTHX_ SV **svp)
+Perl_save_hdelete(pTHX_ HV *hv, SV *keysv)
{
- dVAR;
+ STRLEN len;
+ I32 klen;
+ const char *key;
- PERL_ARGS_ASSERT_SAVE_CLEARSV;
+ PERL_ARGS_ASSERT_SAVE_HDELETE;
- ASSERT_CURPAD_ACTIVE("save_clearsv");
- SSCHECK(2);
- SSPUSHLONG((long)(svp-PL_curpad));
- SSPUSHINT(SAVEt_CLEARSV);
- SvPADSTALE_off(*svp); /* mark lexical as active */
+ key = SvPV_const(keysv, len);
+ klen = SvUTF8(keysv) ? -(I32)len : (I32)len;
+ SvREFCNT_inc_simple_void_NN(hv);
+ save_pushptri32ptr(savepvn(key, len), klen, hv, SAVEt_DELETE);
}
+/*
+=for apidoc_section $callback
+=for apidoc save_adelete
+
+Implements C<SAVEADELETE>.
+
+=cut
+*/
+
void
-Perl_save_delete(pTHX_ HV *hv, char *key, I32 klen)
+Perl_save_adelete(pTHX_ AV *av, SSize_t key)
{
- dVAR;
+ dSS_ADD;
- PERL_ARGS_ASSERT_SAVE_DELETE;
+ PERL_ARGS_ASSERT_SAVE_ADELETE;
- SSCHECK(4);
- SSPUSHINT(klen);
- SSPUSHPTR(key);
- SSPUSHPTR(SvREFCNT_inc_simple(hv));
- SSPUSHINT(SAVEt_DELETE);
+ SvREFCNT_inc_void(av);
+ SS_ADD_UV(key);
+ SS_ADD_PTR(av);
+ SS_ADD_IV(SAVEt_ADELETE);
+ SS_ADD_END(3);
}
void
Perl_save_destructor(pTHX_ DESTRUCTORFUNC_NOCONTEXT_t f, void* p)
{
- dVAR;
-
+ dSS_ADD;
PERL_ARGS_ASSERT_SAVE_DESTRUCTOR;
- SSCHECK(3);
- SSPUSHDPTR(f);
- SSPUSHPTR(p);
- SSPUSHINT(SAVEt_DESTRUCTOR);
+ SS_ADD_DPTR(f);
+ SS_ADD_PTR(p);
+ SS_ADD_UV(SAVEt_DESTRUCTOR);
+ SS_ADD_END(3);
}
void
Perl_save_destructor_x(pTHX_ DESTRUCTORFUNC_t f, void* p)
{
- dVAR;
- SSCHECK(3);
- SSPUSHDXPTR(f);
- SSPUSHPTR(p);
- SSPUSHINT(SAVEt_DESTRUCTOR_X);
+ dSS_ADD;
+
+ SS_ADD_DXPTR(f);
+ SS_ADD_PTR(p);
+ SS_ADD_UV(SAVEt_DESTRUCTOR_X);
+ SS_ADD_END(3);
+}
+
+/*
+=for apidoc_section $callback
+=for apidoc save_hints
+
+Implements C<SAVEHINTS>.
+
+=cut
+ */
+
+void
+Perl_save_hints(pTHX)
+{
+ COPHH *save_cophh = cophh_copy(CopHINTHASH_get(&PL_compiling));
+ if (PL_hints & HINT_LOCALIZE_HH) {
+ HV *oldhh = GvHV(PL_hintgv);
+ {
+ dSS_ADD;
+ SS_ADD_INT(PL_hints);
+ SS_ADD_PTR(save_cophh);
+ SS_ADD_PTR(oldhh);
+ SS_ADD_UV(SAVEt_HINTS_HH | (PL_prevailing_version << 8));
+ SS_ADD_END(4);
+ }
+ GvHV(PL_hintgv) = NULL; /* in case copying dies */
+ GvHV(PL_hintgv) = hv_copy_hints_hv(oldhh);
+ SAVEFEATUREBITS();
+ } else {
+ save_pushi32ptr(PL_hints, save_cophh, SAVEt_HINTS | (PL_prevailing_version << 8));
+ }
}
+static void
+S_save_pushptri32ptr(pTHX_ void *const ptr1, const I32 i, void *const ptr2,
+ const int type)
+{
+ dSS_ADD;
+ SS_ADD_PTR(ptr1);
+ SS_ADD_INT(i);
+ SS_ADD_PTR(ptr2);
+ SS_ADD_UV(type);
+ SS_ADD_END(4);
+}
+
+/*
+=for apidoc_section $callback
+=for apidoc save_aelem
+=for apidoc_item save_aelem_flags
+
+These each arrange for the value of the array element C<av[idx]> to be restored
+at the end of the enclosing I<pseudo-block>.
+
+In C<save_aelem>, the SV at C**sptr> will be replaced by a new C<undef>
+scalar. That scalar will inherit any magic from the original C<**sptr>,
+and any 'set' magic will be processed.
+
+In C<save_aelem_flags>, C<SAVEf_KEEPOLDELEM> being set in C<flags> causes
+the function to forgo all that: the scalar at C<**sptr> is untouched.
+If C<SAVEf_KEEPOLDELEM> is not set, the SV at C**sptr> will be replaced by a
+new C<undef> scalar. That scalar will inherit any magic from the original
+C<**sptr>. Any 'set' magic will be processed if and only if C<SAVEf_SETMAGIC>
+is set in in C<flags>.
+
+=cut
+*/
+
void
-Perl_save_aelem(pTHX_ AV *av, I32 idx, SV **sptr)
+Perl_save_aelem_flags(pTHX_ AV *av, SSize_t idx, SV **sptr,
+ const U32 flags)
{
- dVAR;
+ dSS_ADD;
SV *sv;
- PERL_ARGS_ASSERT_SAVE_AELEM;
+ PERL_ARGS_ASSERT_SAVE_AELEM_FLAGS;
SvGETMAGIC(*sptr);
- SSCHECK(4);
- SSPUSHPTR(SvREFCNT_inc_simple(av));
- SSPUSHINT(idx);
- SSPUSHPTR(SvREFCNT_inc(*sptr));
- SSPUSHINT(SAVEt_AELEM);
- /* if it gets reified later, the restore will have the wrong refcnt */
- if (!AvREAL(av) && AvREIFY(av))
- SvREFCNT_inc_void(*sptr);
- save_scalar_at(sptr);
+ SS_ADD_PTR(SvREFCNT_inc_simple(av));
+ SS_ADD_IV(idx);
+ SS_ADD_PTR(SvREFCNT_inc(*sptr));
+ SS_ADD_UV(SAVEt_AELEM);
+ SS_ADD_END(4);
+ /* The array needs to hold a reference count on its new element, so it
+ must be AvREAL. */
+ if (UNLIKELY(!AvREAL(av) && AvREIFY(av)))
+ av_reify(av);
+ save_scalar_at(sptr, flags); /* XXX - FIXME - see #60360 */
+ if (flags & SAVEf_KEEPOLDELEM)
+ return;
sv = *sptr;
/* If we're localizing a tied array element, this new sv
* won't actually be stored in the array - so it won't get
* reaped when the localize ends. Ensure it gets reaped by
* mortifying it instead. DAPM */
- if (SvTIED_mg(sv, PERL_MAGIC_tiedelem))
- sv_2mortal(sv);
+ if (UNLIKELY(SvTIED_mg((const SV *)av, PERL_MAGIC_tied)))
+ sv_2mortal(sv);
}
+/*
+=for apidoc_section $callback
+=for apidoc save_helem
+=for apidoc_item save_helem_flags
+
+These each arrange for the value of the hash element (in Perlish terms)
+C<$hv{key}]> to be restored at the end of the enclosing I<pseudo-block>.
+
+In C<save_helem>, the SV at C**sptr> will be replaced by a new C<undef>
+scalar. That scalar will inherit any magic from the original C<**sptr>,
+and any 'set' magic will be processed.
+
+In C<save_helem_flags>, C<SAVEf_KEEPOLDELEM> being set in C<flags> causes
+the function to forgo all that: the scalar at C<**sptr> is untouched.
+If C<SAVEf_KEEPOLDELEM> is not set, the SV at C**sptr> will be replaced by a
+new C<undef> scalar. That scalar will inherit any magic from the original
+C<**sptr>. Any 'set' magic will be processed if and only if C<SAVEf_SETMAGIC>
+is set in in C<flags>.
+
+=cut
+*/
+
void
-Perl_save_helem(pTHX_ HV *hv, SV *key, SV **sptr)
+Perl_save_helem_flags(pTHX_ HV *hv, SV *key, SV **sptr, const U32 flags)
{
- dVAR;
SV *sv;
- PERL_ARGS_ASSERT_SAVE_HELEM;
+ PERL_ARGS_ASSERT_SAVE_HELEM_FLAGS;
SvGETMAGIC(*sptr);
- SSCHECK(4);
- SSPUSHPTR(SvREFCNT_inc_simple(hv));
- SSPUSHPTR(newSVsv(key));
- SSPUSHPTR(SvREFCNT_inc(*sptr));
- SSPUSHINT(SAVEt_HELEM);
- save_scalar_at(sptr);
+ {
+ dSS_ADD;
+ SS_ADD_PTR(SvREFCNT_inc_simple(hv));
+ SS_ADD_PTR(newSVsv(key));
+ SS_ADD_PTR(SvREFCNT_inc(*sptr));
+ SS_ADD_UV(SAVEt_HELEM);
+ SS_ADD_END(4);
+ }
+ save_scalar_at(sptr, flags);
+ if (flags & SAVEf_KEEPOLDELEM)
+ return;
sv = *sptr;
/* If we're localizing a tied hash element, this new sv
* won't actually be stored in the hash - so it won't get
* reaped when the localize ends. Ensure it gets reaped by
* mortifying it instead. DAPM */
- if (SvTIED_mg(sv, PERL_MAGIC_tiedelem))
- sv_2mortal(sv);
+ if (UNLIKELY(SvTIED_mg((const SV *)hv, PERL_MAGIC_tied)))
+ sv_2mortal(sv);
}
SV*
Perl_save_svref(pTHX_ SV **sptr)
{
- dVAR;
-
PERL_ARGS_ASSERT_SAVE_SVREF;
SvGETMAGIC(*sptr);
- SSCHECK(3);
- SSPUSHPTR(sptr);
- SSPUSHPTR(SvREFCNT_inc(*sptr));
- SSPUSHINT(SAVEt_SVREF);
- return save_scalar_at(sptr);
+ save_pushptrptr(sptr, SvREFCNT_inc(*sptr), SAVEt_SVREF);
+ return save_scalar_at(sptr, SAVEf_SETMAGIC); /* XXX - FIXME - see #60360 */
}
+
void
-Perl_save_op(pTHX)
+Perl_savetmps(pTHX)
{
- dVAR;
- SSCHECK(2);
- SSPUSHPTR(PL_op);
- SSPUSHINT(SAVEt_OP);
+ dSS_ADD;
+ SS_ADD_IV(PL_tmps_floor);
+ PL_tmps_floor = PL_tmps_ix;
+ SS_ADD_UV(SAVEt_TMPSFLOOR);
+ SS_ADD_END(2);
}
-I32
-Perl_save_alloc(pTHX_ I32 size, I32 pad)
+/*
+=for apidoc_section $stack
+=for apidoc save_alloc
+
+Implements L<perlapi/C<SSNEW>> and kin, which should be used instead of this
+function.
+
+=cut
+*/
+
+SSize_t
+Perl_save_alloc(pTHX_ SSize_t size, I32 pad)
{
- dVAR;
- register const I32 start = pad + ((char*)&PL_savestack[PL_savestack_ix]
- - (char*)PL_savestack);
- register const I32 elems = 1 + ((size + pad - 1) / sizeof(*PL_savestack));
+ const SSize_t start = pad + ((char*)&PL_savestack[PL_savestack_ix]
+ - (char*)PL_savestack);
+ const UV elems = 1 + ((size + pad - 1) / sizeof(*PL_savestack));
+ const UV elems_shifted = elems << SAVE_TIGHT_SHIFT;
- SSGROW(elems + 2);
+ if (UNLIKELY((elems_shifted >> SAVE_TIGHT_SHIFT) != elems))
+ Perl_croak(aTHX_
+ "panic: save_alloc elems %" UVuf " out of range (%" IVdf "-%" IVdf ")",
+ elems, (IV)size, (IV)pad);
+
+ SSGROW(elems + 1);
PL_savestack_ix += elems;
- SSPUSHINT(elems);
- SSPUSHINT(SAVEt_ALLOC);
+ SSPUSHUV(SAVEt_ALLOC | elems_shifted);
return start;
}
+
+
+/*
+=for apidoc_section $callback
+=for apidoc leave_scope
+
+Implements C<LEAVE_SCOPE> which you should use instead.
+
+=cut
+ */
+
void
Perl_leave_scope(pTHX_ I32 base)
{
- dVAR;
- register SV *sv;
- register SV *value;
- register GV *gv;
- register AV *av;
- register HV *hv;
- void* ptr;
- register char* str;
- I32 i;
-
- if (base < -1)
- Perl_croak(aTHX_ "panic: corrupt saved stack index");
+ /* Localise the effects of the TAINT_NOT inside the loop. */
+ bool was = TAINT_get;
+
+ if (UNLIKELY(base < -1))
+ Perl_croak(aTHX_ "panic: corrupt saved stack index %ld", (long) base);
+ DEBUG_l(Perl_deb(aTHX_ "savestack: releasing items %ld -> %ld\n",
+ (long)PL_savestack_ix, (long)base));
while (PL_savestack_ix > base) {
- switch (SSPOPINT) {
- case SAVEt_ITEM: /* normal string */
- value = MUTABLE_SV(SSPOPPTR);
- sv = MUTABLE_SV(SSPOPPTR);
- sv_replace(sv,value);
- PL_localizing = 2;
- SvSETMAGIC(sv);
- PL_localizing = 0;
- break;
- case SAVEt_SV: /* scalar reference */
- value = MUTABLE_SV(SSPOPPTR);
- gv = MUTABLE_GV(SSPOPPTR);
- ptr = &GvSV(gv);
- av = MUTABLE_AV(gv); /* what to refcnt_dec */
- restore_sv:
- sv = *(SV**)ptr;
- *(SV**)ptr = value;
- SvREFCNT_dec(sv);
- PL_localizing = 2;
- SvSETMAGIC(value);
- PL_localizing = 0;
- SvREFCNT_dec(value);
- if (av) /* actually an av, hv or gv */
- SvREFCNT_dec(av);
- break;
- case SAVEt_GENERIC_PVREF: /* generic pv */
- ptr = SSPOPPTR;
- str = (char*)SSPOPPTR;
- if (*(char**)ptr != str) {
- Safefree(*(char**)ptr);
- *(char**)ptr = str;
- }
- break;
- case SAVEt_SHARED_PVREF: /* shared pv */
- str = (char*)SSPOPPTR;
- ptr = SSPOPPTR;
- if (*(char**)ptr != str) {
-#ifdef NETWARE
- PerlMem_free(*(char**)ptr);
+ UV uv;
+ U8 type;
+ ANY *ap; /* arg pointer */
+ ANY a0, a1, a2; /* up to 3 args */
+
+ TAINT_NOT;
+
+ {
+ U8 argcount;
+ I32 ix = PL_savestack_ix - 1;
+
+ ap = &PL_savestack[ix];
+ uv = ap->any_uv;
+ type = (U8)uv & SAVE_MASK;
+ argcount = leave_scope_arg_counts[type];
+ PL_savestack_ix = ix - argcount;
+ ap -= argcount;
+ }
+
+ switch (type) {
+ case SAVEt_ITEM: /* normal string */
+ a0 = ap[0]; a1 = ap[1];
+ sv_replace(a0.any_sv, a1.any_sv);
+ if (UNLIKELY(SvSMAGICAL(a0.any_sv))) {
+ PL_localizing = 2;
+ mg_set(a0.any_sv);
+ PL_localizing = 0;
+ }
+ break;
+
+ /* This would be a mathom, but Perl_save_svref() calls a static
+ function, S_save_scalar_at(), so has to stay in this file. */
+ case SAVEt_SVREF: /* scalar reference */
+ a0 = ap[0]; a1 = ap[1];
+ a2.any_svp = a0.any_svp;
+ a0.any_sv = NULL; /* what to refcnt_dec */
+ goto restore_sv;
+
+ case SAVEt_SV: /* scalar reference */
+ a0 = ap[0]; a1 = ap[1];
+ a2.any_svp = &GvSV(a0.any_gv);
+ restore_sv:
+ {
+ /* do *a2.any_svp = a1 and free a0 */
+ SV * const sv = *a2.any_svp;
+ *a2.any_svp = a1.any_sv;
+ SvREFCNT_dec(sv);
+ if (UNLIKELY(SvSMAGICAL(a1.any_sv))) {
+ /* mg_set could die, skipping the freeing of a0 and
+ * a1; Ensure that they're always freed in that case */
+ dSS_ADD;
+ SS_ADD_PTR(a1.any_sv);
+ SS_ADD_UV(SAVEt_FREESV);
+ SS_ADD_PTR(a0.any_sv);
+ SS_ADD_UV(SAVEt_FREESV);
+ SS_ADD_END(4);
+ PL_localizing = 2;
+ mg_set(a1.any_sv);
+ PL_localizing = 0;
+ break;
+ }
+ SvREFCNT_dec_NN(a1.any_sv);
+ SvREFCNT_dec(a0.any_sv);
+ break;
+ }
+
+ case SAVEt_GENERIC_PVREF: /* generic pv */
+ a0 = ap[0]; a1 = ap[1];
+ if (*a1.any_pvp != a0.any_pv) {
+ Safefree(*a1.any_pvp);
+ *a1.any_pvp = a0.any_pv;
+ }
+ break;
+
+ case SAVEt_SHARED_PVREF: /* shared pv */
+ a0 = ap[0]; a1 = ap[1];
+ if (*a0.any_pvp != a1.any_pv) {
+ PerlMemShared_free(*a0.any_pvp);
+ *a0.any_pvp = a1.any_pv;
+ }
+ break;
+
+ case SAVEt_GVSV: /* scalar slot in GV */
+ a0 = ap[0]; a1 = ap[1];
+ a0.any_svp = &GvSV(a0.any_gv);
+ goto restore_svp;
+
+
+ case SAVEt_GENERIC_SVREF: /* generic sv */
+ a0 = ap[0]; a1 = ap[1];
+ restore_svp:
+ {
+ /* do *a0.any_svp = a1 */
+ SV * const sv = *a0.any_svp;
+ *a0.any_svp = a1.any_sv;
+ SvREFCNT_dec(sv);
+ SvREFCNT_dec(a1.any_sv);
+ break;
+ }
+
+ case SAVEt_RCPV: /* like generic sv, but for struct rcpv */
+ {
+ a0 = ap[0]; a1 = ap[1];
+ char *old = *a0.any_pvp;
+ *a0.any_pvp = a1.any_pv;
+ (void)rcpv_free(old);
+ (void)rcpv_free(a1.any_pv);
+ break;
+ }
+
+ case SAVEt_FREERCPV: /* like SAVEt_FREEPV but for a RCPV */
+ {
+ a0 = ap[0];
+ char *rcpv = a0.any_pv;
+ (void)rcpv_free(rcpv);
+ break;
+ }
+
+ case SAVEt_GVSLOT: /* any slot in GV */
+ {
+ HV * hv;
+ a0 = ap[0]; a1 = ap[1]; a2 = ap[2];
+ hv = GvSTASH(a0.any_gv);
+ if (hv && HvHasENAME(hv) && (
+ (a2.any_sv && SvTYPE(a2.any_sv) == SVt_PVCV)
+ || (*a1.any_svp && SvTYPE(*a1.any_svp) == SVt_PVCV)
+ ))
+ {
+ if ((char *)a1.any_svp < (char *)GvGP(a0.any_gv)
+ || (char *)a1.any_svp > (char *)GvGP(a0.any_gv) + sizeof(struct gp)
+ || GvREFCNT(a0.any_gv) > 2) /* "> 2" to ignore savestack's ref */
+ PL_sub_generation++;
+ else mro_method_changed_in(hv);
+ }
+ a0.any_svp = a1.any_svp;
+ a1.any_sv = a2.any_sv;
+ goto restore_svp;
+ }
+
+ case SAVEt_AV: /* array reference */
+ a0 = ap[0]; a1 = ap[1];
+ SvREFCNT_dec(GvAV(a0.any_gv));
+ GvAV(a0.any_gv) = a1.any_av;
+ avhv_common:
+ if (UNLIKELY(SvSMAGICAL(a1.any_sv))) {
+ /* mg_set might die, so make sure a0 isn't leaked */
+ dSS_ADD;
+ SS_ADD_PTR(a0.any_sv);
+ SS_ADD_UV(SAVEt_FREESV);
+ SS_ADD_END(2);
+ PL_localizing = 2;
+ mg_set(a1.any_sv);
+ PL_localizing = 0;
+ break;
+ }
+ SvREFCNT_dec_NN(a0.any_sv);
+ break;
+
+ case SAVEt_HV: /* hash reference */
+ a0 = ap[0]; a1 = ap[1];
+ SvREFCNT_dec(GvHV(a0.any_gv));
+ GvHV(a0.any_gv) = a1.any_hv;
+ goto avhv_common;
+
+ case SAVEt_INT_SMALL:
+ a0 = ap[0];
+ *(int*)a0.any_ptr = (int)(uv >> SAVE_TIGHT_SHIFT);
+ break;
+
+ case SAVEt_INT: /* int reference */
+ a0 = ap[0]; a1 = ap[1];
+ *(int*)a1.any_ptr = (int)a0.any_i32;
+ break;
+
+ case SAVEt_STRLEN_SMALL:
+ a0 = ap[0];
+ *(STRLEN*)a0.any_ptr = (STRLEN)(uv >> SAVE_TIGHT_SHIFT);
+ break;
+
+ case SAVEt_STRLEN: /* STRLEN/size_t ref */
+ a0 = ap[0]; a1 = ap[1];
+ *(STRLEN*)a1.any_ptr = (STRLEN)a0.any_iv;
+ break;
+
+ case SAVEt_TMPSFLOOR: /* restore PL_tmps_floor */
+ a0 = ap[0];
+ PL_tmps_floor = (SSize_t)a0.any_iv;
+ break;
+
+ case SAVEt_BOOL: /* bool reference */
+ a0 = ap[0];
+ *(bool*)a0.any_ptr = cBOOL(uv >> 8);
+#ifdef NO_TAINT_SUPPORT
+ PERL_UNUSED_VAR(was);
#else
- PerlMemShared_free(*(char**)ptr);
+ if (UNLIKELY(a0.any_ptr == &(PL_tainted))) {
+ /* If we don't update <was>, to reflect what was saved on the
+ * stack for PL_tainted, then we will overwrite this attempt to
+ * restore it when we exit this routine. Note that this won't
+ * work if this value was saved in a wider-than necessary type,
+ * such as I32 */
+ was = *(bool*)a0.any_ptr;
+ }
#endif
- *(char**)ptr = str;
- }
- break;
- case SAVEt_GENERIC_SVREF: /* generic sv */
- value = MUTABLE_SV(SSPOPPTR);
- ptr = SSPOPPTR;
- sv = *(SV**)ptr;
- *(SV**)ptr = value;
- SvREFCNT_dec(sv);
- SvREFCNT_dec(value);
- break;
- case SAVEt_AV: /* array reference */
- av = MUTABLE_AV(SSPOPPTR);
- gv = MUTABLE_GV(SSPOPPTR);
- if (GvAV(gv)) {
- SvREFCNT_dec(GvAV(gv));
- }
- GvAV(gv) = av;
- if (SvMAGICAL(av)) {
- PL_localizing = 2;
- SvSETMAGIC(MUTABLE_SV(av));
- PL_localizing = 0;
- }
- break;
- case SAVEt_HV: /* hash reference */
- hv = MUTABLE_HV(SSPOPPTR);
- gv = MUTABLE_GV(SSPOPPTR);
- if (GvHV(gv)) {
- SvREFCNT_dec(GvHV(gv));
- }
- GvHV(gv) = hv;
- if (SvMAGICAL(hv)) {
- PL_localizing = 2;
- SvSETMAGIC(MUTABLE_SV(hv));
- PL_localizing = 0;
- }
- break;
- case SAVEt_INT: /* int reference */
- ptr = SSPOPPTR;
- *(int*)ptr = (int)SSPOPINT;
- break;
- case SAVEt_BOOL: /* bool reference */
- ptr = SSPOPPTR;
- *(bool*)ptr = (bool)SSPOPBOOL;
- break;
- case SAVEt_I32: /* I32 reference */
- ptr = SSPOPPTR;
+ break;
+
+ case SAVEt_I32_SMALL:
+ a0 = ap[0];
+ *(I32*)a0.any_ptr = (I32)(uv >> SAVE_TIGHT_SHIFT);
+ break;
+
+ case SAVEt_I32: /* I32 reference */
+ a0 = ap[0]; a1 = ap[1];
#ifdef PERL_DEBUG_READONLY_OPS
- {
- const I32 val = SSPOPINT;
- if (*(I32*)ptr != val)
- *(I32*)ptr = val;
- }
-#else
- *(I32*)ptr = (I32)SSPOPINT;
+ if (*(I32*)a1.any_ptr != a0.any_i32)
#endif
- break;
- case SAVEt_SPTR: /* SV* reference */
- ptr = SSPOPPTR;
- *(SV**)ptr = MUTABLE_SV(SSPOPPTR);
- break;
- case SAVEt_VPTR: /* random* reference */
- case SAVEt_PPTR: /* char* reference */
- ptr = SSPOPPTR;
- *(char**)ptr = (char*)SSPOPPTR;
- break;
- case SAVEt_HPTR: /* HV* reference */
- ptr = SSPOPPTR;
- *(HV**)ptr = MUTABLE_HV(SSPOPPTR);
- break;
- case SAVEt_APTR: /* AV* reference */
- ptr = SSPOPPTR;
- *(AV**)ptr = MUTABLE_AV(SSPOPPTR);
- break;
- case SAVEt_GP: /* scalar reference */
- ptr = SSPOPPTR;
- gv = MUTABLE_GV(SSPOPPTR);
- gp_free(gv);
- GvGP(gv) = (GP*)ptr;
- /* putting a method back into circulation ("local")*/
- if (GvCVu(gv) && (hv=GvSTASH(gv)) && HvNAME_get(hv))
- mro_method_changed_in(hv);
- SvREFCNT_dec(gv);
- break;
- case SAVEt_FREESV:
- ptr = SSPOPPTR;
- SvREFCNT_dec(MUTABLE_SV(ptr));
- break;
- case SAVEt_MORTALIZESV:
- ptr = SSPOPPTR;
- sv_2mortal(MUTABLE_SV(ptr));
- break;
- case SAVEt_FREEOP:
- ptr = SSPOPPTR;
- ASSERT_CURPAD_LEGAL("SAVEt_FREEOP"); /* XXX DAPM tmp */
- op_free((OP*)ptr);
- break;
- case SAVEt_FREEPV:
- ptr = SSPOPPTR;
- Safefree(ptr);
- break;
- case SAVEt_CLEARSV:
- ptr = (void*)&PL_curpad[SSPOPLONG];
- sv = *(SV**)ptr;
-
- DEBUG_Xv(PerlIO_printf(Perl_debug_log,
- "Pad 0x%"UVxf"[0x%"UVxf"] clearsv: %ld sv=0x%"UVxf"<%"IVdf"> %s\n",
- PTR2UV(PL_comppad), PTR2UV(PL_curpad),
- (long)((SV **)ptr-PL_curpad), PTR2UV(sv), (IV)SvREFCNT(sv),
- (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) ? "clear" : "abandon"
- ));
-
- /* Can clear pad variable in place? */
- if (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) {
- /*
- * if a my variable that was made readonly is going out of
- * scope, we want to remove the readonlyness so that it can
- * go out of scope quietly
- */
- if (SvPADMY(sv) && !SvFAKE(sv))
- SvREADONLY_off(sv);
-
- if (SvTHINKFIRST(sv))
- sv_force_normal_flags(sv, SV_IMMEDIATE_UNREF);
- if (SvMAGICAL(sv))
- mg_free(sv);
-
- switch (SvTYPE(sv)) {
- case SVt_NULL:
- break;
- case SVt_PVAV:
- av_clear(MUTABLE_AV(sv));
- break;
- case SVt_PVHV:
- hv_clear(MUTABLE_HV(sv));
- break;
- case SVt_PVCV:
- Perl_croak(aTHX_ "panic: leave_scope pad code");
- default:
- SvOK_off(sv);
- break;
- }
- SvPADSTALE_on(sv); /* mark as no longer live */
- }
- else { /* Someone has a claim on this, so abandon it. */
- const U32 padflags = SvFLAGS(sv) & (SVs_PADMY|SVs_PADTMP);
- switch (SvTYPE(sv)) { /* Console ourselves with a new value */
- case SVt_PVAV: *(SV**)ptr = MUTABLE_SV(newAV()); break;
- case SVt_PVHV: *(SV**)ptr = MUTABLE_SV(newHV()); break;
- default: *(SV**)ptr = newSV(0); break;
- }
- SvREFCNT_dec(sv); /* Cast current value to the winds. */
- /* preserve pad nature, but also mark as not live
- * for any closure capturing */
- SvFLAGS(*(SV**)ptr) |= padflags | SVs_PADSTALE;
- }
- break;
- case SAVEt_DELETE:
- ptr = SSPOPPTR;
- hv = MUTABLE_HV(ptr);
- ptr = SSPOPPTR;
- (void)hv_delete(hv, (char*)ptr, (I32)SSPOPINT, G_DISCARD);
- SvREFCNT_dec(hv);
- Safefree(ptr);
- break;
- case SAVEt_DESTRUCTOR_X:
- ptr = SSPOPPTR;
- (*SSPOPDXPTR)(aTHX_ ptr);
- break;
- case SAVEt_REGCONTEXT:
- case SAVEt_ALLOC:
- i = SSPOPINT;
- PL_savestack_ix -= i; /* regexp must have croaked */
- break;
- case SAVEt_STACK_POS: /* Position on Perl stack */
- i = SSPOPINT;
- PL_stack_sp = PL_stack_base + i;
- break;
- case SAVEt_STACK_CXPOS: /* blk_oldsp on context stack */
- i = SSPOPINT;
- cxstack[i].blk_oldsp = SSPOPINT;
- break;
- case SAVEt_AELEM: /* array element */
- value = MUTABLE_SV(SSPOPPTR);
- i = SSPOPINT;
- av = MUTABLE_AV(SSPOPPTR);
- ptr = av_fetch(av,i,1);
- if (!AvREAL(av) && AvREIFY(av)) /* undo reify guard */
- SvREFCNT_dec(value);
- if (ptr) {
- sv = *(SV**)ptr;
- if (sv && sv != &PL_sv_undef) {
- if (SvTIED_mg((const SV *)av, PERL_MAGIC_tied))
- SvREFCNT_inc_void_NN(sv);
- goto restore_sv;
- }
- }
- SvREFCNT_dec(av);
- SvREFCNT_dec(value);
- break;
- case SAVEt_HELEM: /* hash element */
- value = MUTABLE_SV(SSPOPPTR);
- sv = MUTABLE_SV(SSPOPPTR);
- hv = MUTABLE_HV(SSPOPPTR);
- ptr = hv_fetch_ent(hv, sv, 1, 0);
- if (ptr) {
- const SV * const oval = HeVAL((HE*)ptr);
- if (oval && oval != &PL_sv_undef) {
- ptr = &HeVAL((HE*)ptr);
- if (SvTIED_mg((const SV *)hv, PERL_MAGIC_tied))
- SvREFCNT_inc_void(*(SV**)ptr);
- SvREFCNT_dec(sv);
- av = MUTABLE_AV(hv); /* what to refcnt_dec */
- goto restore_sv;
- }
- }
- SvREFCNT_dec(hv);
- SvREFCNT_dec(sv);
- SvREFCNT_dec(value);
- break;
- case SAVEt_OP:
- PL_op = (OP*)SSPOPPTR;
- break;
- case SAVEt_HINTS:
- if ((PL_hints & HINT_LOCALIZE_HH) && GvHV(PL_hintgv)) {
- SvREFCNT_dec(MUTABLE_SV(GvHV(PL_hintgv)));
- GvHV(PL_hintgv) = NULL;
- }
- *(I32*)&PL_hints = (I32)SSPOPINT;
- Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash);
- PL_compiling.cop_hints_hash = (struct refcounted_he *) SSPOPPTR;
- if (PL_hints & HINT_LOCALIZE_HH) {
- SvREFCNT_dec(MUTABLE_SV(GvHV(PL_hintgv)));
- GvHV(PL_hintgv) = MUTABLE_HV(SSPOPPTR);
- assert(GvHV(PL_hintgv));
- } else if (!GvHV(PL_hintgv)) {
- /* Need to add a new one manually, else gv_fetchpv() can
- add one in this code:
-
- if (SvTYPE(gv) == SVt_PVGV) {
- if (add) {
- GvMULTI_on(gv);
- gv_init_sv(gv, sv_type);
- if (*name=='!' && sv_type == SVt_PVHV && len==1)
- require_errno(gv);
- }
- return gv;
- }
-
- and it won't have the magic set. */
-
- HV *const hv = newHV();
- hv_magic(hv, NULL, PERL_MAGIC_hints);
- GvHV(PL_hintgv) = hv;
- }
- assert(GvHV(PL_hintgv));
- break;
- case SAVEt_COMPPAD:
- PL_comppad = (PAD*)SSPOPPTR;
- if (PL_comppad)
- PL_curpad = AvARRAY(PL_comppad);
- else
- PL_curpad = NULL;
- break;
- case SAVEt_PADSV_AND_MORTALIZE:
- {
- const PADOFFSET off = (PADOFFSET)SSPOPLONG;
- SV **svp;
- ptr = SSPOPPTR;
- assert (ptr);
- svp = AvARRAY((PAD*)ptr) + off;
- /* This mortalizing used to be done by POPLOOP() via itersave.
- But as we have all the information here, we can do it here,
- save even having to have itersave in the struct. */
- sv_2mortal(*svp);
- *svp = MUTABLE_SV(SSPOPPTR);
- }
- break;
- case SAVEt_SAVESWITCHSTACK:
- {
- dSP;
- AV *const t = MUTABLE_AV(SSPOPPTR);
- AV *const f = MUTABLE_AV(SSPOPPTR);
- SWITCHSTACK(t,f);
- PL_curstackinfo->si_stack = f;
- }
- break;
- case SAVEt_SET_SVFLAGS:
- {
- const U32 val = (U32)SSPOPINT;
- const U32 mask = (U32)SSPOPINT;
- sv = MUTABLE_SV(SSPOPPTR);
- SvFLAGS(sv) &= ~mask;
- SvFLAGS(sv) |= val;
- }
- break;
-
- /* This would be a mathom, but Perl_save_svref() calls a static
- function, S_save_scalar_at(), so has to stay in this file. */
- case SAVEt_SVREF: /* scalar reference */
- value = MUTABLE_SV(SSPOPPTR);
- ptr = SSPOPPTR;
- av = NULL; /* what to refcnt_dec */
- goto restore_sv;
-
- /* These are only saved in mathoms.c */
- case SAVEt_NSTAB:
- gv = MUTABLE_GV(SSPOPPTR);
- (void)sv_clear(MUTABLE_SV(gv));
- break;
- case SAVEt_LONG: /* long reference */
- ptr = SSPOPPTR;
- *(long*)ptr = (long)SSPOPLONG;
- break;
- case SAVEt_IV: /* IV reference */
- ptr = SSPOPPTR;
- *(IV*)ptr = (IV)SSPOPIV;
- break;
-
- case SAVEt_I16: /* I16 reference */
- ptr = SSPOPPTR;
- *(I16*)ptr = (I16)SSPOPINT;
- break;
- case SAVEt_I8: /* I8 reference */
- ptr = SSPOPPTR;
- *(I8*)ptr = (I8)SSPOPINT;
- break;
- case SAVEt_DESTRUCTOR:
- ptr = SSPOPPTR;
- (*SSPOPDPTR)(ptr);
- break;
- case SAVEt_COP_ARYBASE:
- ptr = SSPOPPTR;
- i = SSPOPINT;
- CopARYBASE_set((COP *)ptr, i);
- break;
- case SAVEt_COMPILE_WARNINGS:
- ptr = SSPOPPTR;
-
- if (!specialWARN(PL_compiling.cop_warnings))
- PerlMemShared_free(PL_compiling.cop_warnings);
-
- PL_compiling.cop_warnings = (STRLEN*)ptr;
- break;
- case SAVEt_RE_STATE:
- {
- const struct re_save_state *const state
- = (struct re_save_state *)
- (PL_savestack + PL_savestack_ix
- - SAVESTACK_ALLOC_FOR_RE_SAVE_STATE);
- PL_savestack_ix -= SAVESTACK_ALLOC_FOR_RE_SAVE_STATE;
-
- if (PL_reg_start_tmp != state->re_state_reg_start_tmp) {
- Safefree(PL_reg_start_tmp);
- }
- if (PL_reg_poscache != state->re_state_reg_poscache) {
- Safefree(PL_reg_poscache);
- }
- Copy(state, &PL_reg_state, 1, struct re_save_state);
- }
- break;
- case SAVEt_PARSER:
- ptr = SSPOPPTR;
- parser_free((yy_parser *) ptr);
- break;
- default:
- Perl_croak(aTHX_ "panic: leave_scope inconsistency");
- }
+ *(I32*)a1.any_ptr = a0.any_i32;
+ break;
+
+ case SAVEt_SPTR: /* SV* reference */
+ case SAVEt_VPTR: /* random* reference */
+ case SAVEt_PPTR: /* char* reference */
+ case SAVEt_HPTR: /* HV* reference */
+ case SAVEt_APTR: /* AV* reference */
+ a0 = ap[0]; a1 = ap[1];
+ *a1.any_svp= a0.any_sv;
+ break;
+
+ case SAVEt_GP: /* scalar reference */
+ {
+ HV *hv;
+ bool had_method;
+
+ a0 = ap[0]; a1 = ap[1];
+ /* possibly taking a method out of circulation */
+ had_method = cBOOL(GvCVu(a0.any_gv));
+ gp_free(a0.any_gv);
+ GvGP_set(a0.any_gv, (GP*)a1.any_ptr);
+ if ((hv=GvSTASH(a0.any_gv)) && HvHasENAME(hv)) {
+ if (memEQs(GvNAME(a0.any_gv), GvNAMELEN(a0.any_gv), "ISA"))
+ mro_isa_changed_in(hv);
+ else if (had_method || GvCVu(a0.any_gv))
+ /* putting a method back into circulation ("local")*/
+ gv_method_changed(a0.any_gv);
+ }
+ SvREFCNT_dec_NN(a0.any_gv);
+ break;
+ }
+
+ case SAVEt_FREESV:
+ a0 = ap[0];
+ SvREFCNT_dec(a0.any_sv);
+ break;
+
+ case SAVEt_FREEPADNAME:
+ a0 = ap[0];
+ PadnameREFCNT_dec((PADNAME *)a0.any_ptr);
+ break;
+
+ case SAVEt_FREECOPHH:
+ a0 = ap[0];
+ cophh_free((COPHH *)a0.any_ptr);
+ break;
+
+ case SAVEt_MORTALIZESV:
+ a0 = ap[0];
+ sv_2mortal(a0.any_sv);
+ break;
+
+ case SAVEt_FREEOP:
+ a0 = ap[0];
+ ASSERT_CURPAD_LEGAL("SAVEt_FREEOP");
+ op_free(a0.any_op);
+ break;
+
+ case SAVEt_FREEPV:
+ a0 = ap[0];
+ Safefree(a0.any_ptr);
+ break;
+
+ case SAVEt_CLEARPADRANGE:
+ {
+ I32 i;
+ SV **svp;
+ i = (I32)((uv >> SAVE_TIGHT_SHIFT) & OPpPADRANGE_COUNTMASK);
+ svp = &PL_curpad[uv >>
+ (OPpPADRANGE_COUNTSHIFT + SAVE_TIGHT_SHIFT)] + i - 1;
+ goto clearsv;
+ case SAVEt_CLEARSV:
+ svp = &PL_curpad[uv >> SAVE_TIGHT_SHIFT];
+ i = 1;
+ clearsv:
+ for (; i; i--, svp--) {
+ SV *sv = *svp;
+
+ DEBUG_Xv(PerlIO_printf(Perl_debug_log,
+ "Pad 0x%" UVxf "[0x%" UVxf "] clearsv: %ld sv=0x%" UVxf "<%" IVdf "> %s\n",
+ PTR2UV(PL_comppad), PTR2UV(PL_curpad),
+ (long)(svp-PL_curpad), PTR2UV(sv), (IV)SvREFCNT(sv),
+ (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) ? "clear" : "abandon"
+ ));
+
+ /* Can clear pad variable in place? */
+ if (SvREFCNT(sv) == 1 && !SvOBJECT(sv)) {
+
+ /* these flags are the union of all the relevant flags
+ * in the individual conditions within */
+ if (UNLIKELY(SvFLAGS(sv) & (
+ SVf_READONLY|SVf_PROTECT /*for SvREADONLY_off*/
+ | (SVs_GMG|SVs_SMG|SVs_RMG) /* SvMAGICAL() */
+ | SVf_OOK
+ | SVf_THINKFIRST)))
+ {
+ /* if a my variable that was made readonly is
+ * going out of scope, we want to remove the
+ * readonlyness so that it can go out of scope
+ * quietly
+ */
+ if (SvREADONLY(sv))
+ SvREADONLY_off(sv);
+
+ if (SvTYPE(sv) == SVt_PVHV && HvHasAUX(sv))
+ Perl_hv_kill_backrefs(aTHX_ MUTABLE_HV(sv));
+ else if(SvOOK(sv))
+ sv_backoff(sv);
+
+ if (SvMAGICAL(sv)) {
+ /* note that backrefs (either in HvAUX or magic)
+ * must be removed before other magic */
+ sv_unmagic(sv, PERL_MAGIC_backref);
+ if (SvTYPE(sv) != SVt_PVCV)
+ mg_free(sv);
+ }
+ if (SvTHINKFIRST(sv))
+ sv_force_normal_flags(sv, SV_IMMEDIATE_UNREF
+ |SV_COW_DROP_PV);
+
+ }
+ switch (SvTYPE(sv)) {
+ case SVt_NULL:
+ break;
+ case SVt_PVAV:
+ av_clear(MUTABLE_AV(sv));
+ break;
+ case SVt_PVHV:
+ hv_clear(MUTABLE_HV(sv));
+ break;
+ case SVt_PVCV:
+ {
+ HEK *hek = CvGvNAME_HEK(sv);
+ assert(hek);
+ (void)share_hek_hek(hek);
+ cv_undef((CV *)sv);
+ CvNAME_HEK_set(sv, hek);
+ CvLEXICAL_on(sv);
+ break;
+ }
+ default:
+ /* This looks odd, but these two macros are for use in
+ expressions and finish with a trailing comma, so
+ adding a ; after them would be wrong. */
+ assert_not_ROK(sv)
+ assert_not_glob(sv)
+ SvFLAGS(sv) &=~ (SVf_OK|SVf_IVisUV|SVf_UTF8);
+ break;
+ }
+ SvPADTMP_off(sv);
+ SvPADSTALE_on(sv); /* mark as no longer live */
+ }
+ else { /* Someone has a claim on this, so abandon it. */
+ switch (SvTYPE(sv)) { /* Console ourselves with a new value */
+ case SVt_PVAV: *svp = MUTABLE_SV(newAV()); break;
+ case SVt_PVHV: *svp = MUTABLE_SV(newHV()); break;
+ case SVt_PVCV:
+ {
+ HEK * const hek = CvGvNAME_HEK(sv);
+
+ /* Create a stub */
+ *svp = newSV_type(SVt_PVCV);
+
+ /* Share name */
+ CvNAME_HEK_set(*svp,
+ share_hek_hek(hek));
+ CvLEXICAL_on(*svp);
+ break;
+ }
+ default: *svp = newSV_type(SVt_NULL); break;
+ }
+ SvREFCNT_dec_NN(sv); /* Cast current value to the winds. */
+ /* preserve pad nature, but also mark as not live
+ * for any closure capturing */
+ SvFLAGS(*svp) |= SVs_PADSTALE;
+ }
+ }
+ break;
+ }
+
+ case SAVEt_DELETE:
+ a0 = ap[0]; a1 = ap[1]; a2 = ap[2];
+ /* hv_delete could die, so free the key and SvREFCNT_dec the
+ * hv by pushing new save actions
+ */
+ /* ap[0] is the key */
+ ap[1].any_uv = SAVEt_FREEPV; /* was len */
+ /* ap[2] is the hv */
+ ap[3].any_uv = SAVEt_FREESV; /* was SAVEt_DELETE */
+ PL_savestack_ix += 4;
+ (void)hv_delete(a2.any_hv, a0.any_pv, a1.any_i32, G_DISCARD);
+ break;
+
+ case SAVEt_ADELETE:
+ a0 = ap[0]; a1 = ap[1];
+ /* av_delete could die, so SvREFCNT_dec the av by pushing a
+ * new save action
+ */
+ ap[0].any_av = a1.any_av;
+ ap[1].any_uv = SAVEt_FREESV;
+ PL_savestack_ix += 2;
+ (void)av_delete(a1.any_av, a0.any_iv, G_DISCARD);
+ break;
+
+ case SAVEt_DESTRUCTOR_X:
+ a0 = ap[0]; a1 = ap[1];
+ (*a0.any_dxptr)(aTHX_ a1.any_ptr);
+ break;
+
+ case SAVEt_REGCONTEXT:
+ /* regexp must have croaked */
+ case SAVEt_ALLOC:
+ PL_savestack_ix -= uv >> SAVE_TIGHT_SHIFT;
+ break;
+
+ case SAVEt_STACK_POS: /* Position on Perl stack */
+#ifdef PERL_RC_STACK
+ /* DAPM Jan 2023. I don't think this save type is used any
+ * more, but if some XS code uses it, fail it for now, as
+ * it's not clear to me what perl should be doing to stack ref
+ * counts when arbitrarily resetting the stack pointer.
+ */
+ assert(0);
+#endif
+ a0 = ap[0];
+ PL_stack_sp = PL_stack_base + a0.any_i32;
+ break;
+
+ case SAVEt_AELEM: /* array element */
+ {
+ SV **svp;
+ a0 = ap[0]; a1 = ap[1]; a2 = ap[2];
+ svp = av_fetch(a0.any_av, a1.any_iv, 1);
+ if (UNLIKELY(!AvREAL(a0.any_av) && AvREIFY(a0.any_av))) /* undo reify guard */
+ SvREFCNT_dec(a2.any_sv);
+ if (LIKELY(svp)) {
+ SV * const sv = *svp;
+ if (LIKELY(sv && sv != &PL_sv_undef)) {
+ if (UNLIKELY(SvTIED_mg((const SV *)a0.any_av, PERL_MAGIC_tied)))
+ SvREFCNT_inc_void_NN(sv);
+ a1.any_sv = a2.any_sv;
+ a2.any_svp = svp;
+ goto restore_sv;
+ }
+ }
+ SvREFCNT_dec(a0.any_av);
+ SvREFCNT_dec(a2.any_sv);
+ break;
+ }
+
+ case SAVEt_HELEM: /* hash element */
+ {
+ HE *he;
+
+ a0 = ap[0]; a1 = ap[1]; a2 = ap[2];
+ he = hv_fetch_ent(a0.any_hv, a1.any_sv, 1, 0);
+ SvREFCNT_dec(a1.any_sv);
+ if (LIKELY(he)) {
+ const SV * const oval = HeVAL(he);
+ if (LIKELY(oval && oval != &PL_sv_undef)) {
+ SV **svp = &HeVAL(he);
+ if (UNLIKELY(SvTIED_mg((const SV *)a0.any_hv, PERL_MAGIC_tied)))
+ SvREFCNT_inc_void(*svp);
+ a1.any_sv = a2.any_sv;
+ a2.any_svp = svp;
+ goto restore_sv;
+ }
+ }
+ SvREFCNT_dec(a0.any_hv);
+ SvREFCNT_dec(a2.any_sv);
+ break;
+ }
+
+ case SAVEt_OP:
+ a0 = ap[0];
+ PL_op = (OP*)a0.any_ptr;
+ break;
+
+ case SAVEt_HINTS_HH:
+ a2 = ap[2];
+ /* FALLTHROUGH */
+ case SAVEt_HINTS:
+ a0 = ap[0]; a1 = ap[1];
+ if ((PL_hints & HINT_LOCALIZE_HH)) {
+ while (GvHV(PL_hintgv)) {
+ HV *hv = GvHV(PL_hintgv);
+ GvHV(PL_hintgv) = NULL;
+ SvREFCNT_dec(MUTABLE_SV(hv));
+ }
+ }
+ cophh_free(CopHINTHASH_get(&PL_compiling));
+ CopHINTHASH_set(&PL_compiling, (COPHH*)a1.any_ptr);
+ *(I32*)&PL_hints = a0.any_i32;
+ PL_prevailing_version = (U16)(uv >> 8);
+ if (type == SAVEt_HINTS_HH) {
+ SvREFCNT_dec(MUTABLE_SV(GvHV(PL_hintgv)));
+ GvHV(PL_hintgv) = MUTABLE_HV(a2.any_ptr);
+ }
+ if (!GvHV(PL_hintgv)) {
+ /* Need to add a new one manually, else rv2hv can
+ add one via GvHVn and it won't have the magic set. */
+ HV *const hv = newHV();
+ hv_magic(hv, NULL, PERL_MAGIC_hints);
+ GvHV(PL_hintgv) = hv;
+ }
+ assert(GvHV(PL_hintgv));
+ break;
+
+ case SAVEt_COMPPAD:
+ a0 = ap[0];
+ PL_comppad = (PAD*)a0.any_ptr;
+ if (LIKELY(PL_comppad))
+ PL_curpad = AvARRAY(PL_comppad);
+ else
+ PL_curpad = NULL;
+ break;
+
+ case SAVEt_PADSV_AND_MORTALIZE:
+ {
+ SV **svp;
+
+ a0 = ap[0]; a1 = ap[1]; a2 = ap[2];
+ assert (a1.any_ptr);
+ svp = AvARRAY((PAD*)a1.any_ptr) + (PADOFFSET)a2.any_uv;
+ /* This mortalizing used to be done by CX_POOPLOOP() via
+ itersave. But as we have all the information here, we
+ can do it here, save even having to have itersave in
+ the struct.
+ */
+ sv_2mortal(*svp);
+ *svp = a0.any_sv;
+ }
+ break;
+
+ case SAVEt_SAVESWITCHSTACK:
+ {
+ dSP;
+
+ a0 = ap[0]; a1 = ap[1];
+ SWITCHSTACK(a1.any_av, a0.any_av);
+ PL_curstackinfo->si_stack = a0.any_av;
+ }
+ break;
+
+ case SAVEt_SET_SVFLAGS:
+ a0 = ap[0]; a1 = ap[1]; a2 = ap[2];
+ SvFLAGS(a0.any_sv) &= ~(a1.any_u32);
+ SvFLAGS(a0.any_sv) |= a2.any_u32;
+ break;
+
+ /* These are only saved in mathoms.c */
+ case SAVEt_NSTAB:
+ a0 = ap[0];
+ (void)sv_clear(a0.any_sv);
+ break;
+
+ case SAVEt_LONG: /* long reference */
+ a0 = ap[0]; a1 = ap[1];
+ *(long*)a1.any_ptr = a0.any_long;
+ break;
+
+ case SAVEt_IV: /* IV reference */
+ a0 = ap[0]; a1 = ap[1];
+ *(IV*)a1.any_ptr = a0.any_iv;
+ break;
+
+ case SAVEt_I16: /* I16 reference */
+ a0 = ap[0];
+ *(I16*)a0.any_ptr = (I16)(uv >> 8);
+ break;
+
+ case SAVEt_I8: /* I8 reference */
+ a0 = ap[0];
+ *(I8*)a0.any_ptr = (I8)(uv >> 8);
+ break;
+
+ case SAVEt_DESTRUCTOR:
+ a0 = ap[0]; a1 = ap[1];
+ (*a0.any_dptr)(a1.any_ptr);
+ break;
+
+ case SAVEt_COMPILE_WARNINGS:
+ /* NOTE: we can't put &PL_compiling or PL_curcop on the save
+ * stack directly, as we currently cannot translate
+ * them to the correct addresses after a thread start
+ * or win32 fork start. - Yves
+ */
+ a0 = ap[0];
+ free_and_set_cop_warnings(&PL_compiling, a0.any_pv);
+ break;
+
+ case SAVEt_CURCOP_WARNINGS:
+ /* NOTE: see comment above about SAVEt_COMPILE_WARNINGS */
+ a0 = ap[0];
+ free_and_set_cop_warnings(PL_curcop, a0.any_pv);
+ break;
+
+ case SAVEt_PARSER:
+ a0 = ap[0];
+ parser_free((yy_parser *)a0.any_ptr);
+ break;
+
+ case SAVEt_READONLY_OFF:
+ a0 = ap[0];
+ SvREADONLY_off(a0.any_sv);
+ break;
+
+ default:
+ Perl_croak(aTHX_ "panic: leave_scope inconsistency %u",
+ (U8)uv & SAVE_MASK);
+ }
}
+
+ TAINT_set(was);
}
void
Perl_cx_dump(pTHX_ PERL_CONTEXT *cx)
{
- dVAR;
-
PERL_ARGS_ASSERT_CX_DUMP;
#ifdef DEBUGGING
PerlIO_printf(Perl_debug_log, "CX %ld = %s\n", (long)(cx - cxstack), PL_block_type[CxTYPE(cx)]);
if (CxTYPE(cx) != CXt_SUBST) {
- PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp);
- PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%"UVxf"\n",
- PTR2UV(cx->blk_oldcop));
- PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp);
- PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp);
- PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%"UVxf"\n",
- PTR2UV(cx->blk_oldpm));
- PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", cx->blk_gimme ? "LIST" : "SCALAR");
+ const char *gimme_text;
+ PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp);
+ PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%" UVxf "\n",
+ PTR2UV(cx->blk_oldcop));
+ PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp);
+ PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp);
+ PerlIO_printf(Perl_debug_log, "BLK_OLDSAVEIX = %ld\n", (long)cx->blk_oldsaveix);
+ PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%" UVxf "\n",
+ PTR2UV(cx->blk_oldpm));
+ switch (cx->blk_gimme) {
+ case G_VOID:
+ gimme_text = "VOID";
+ break;
+ case G_SCALAR:
+ gimme_text = "SCALAR";
+ break;
+ case G_LIST:
+ gimme_text = "LIST";
+ break;
+ default:
+ gimme_text = "UNKNOWN";
+ break;
+ }
+ PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", gimme_text);
}
switch (CxTYPE(cx)) {
case CXt_NULL:
case CXt_BLOCK:
- break;
+ case CXt_DEFER:
+ break;
case CXt_FORMAT:
- PerlIO_printf(Perl_debug_log, "BLK_FORMAT.CV = 0x%"UVxf"\n",
- PTR2UV(cx->blk_format.cv));
- PerlIO_printf(Perl_debug_log, "BLK_FORMAT.GV = 0x%"UVxf"\n",
- PTR2UV(cx->blk_format.gv));
- PerlIO_printf(Perl_debug_log, "BLK_FORMAT.DFOUTGV = 0x%"UVxf"\n",
- PTR2UV(cx->blk_format.dfoutgv));
- PerlIO_printf(Perl_debug_log, "BLK_FORMAT.HASARGS = %d\n",
- (int)CxHASARGS(cx));
- PerlIO_printf(Perl_debug_log, "BLK_FORMAT.RETOP = 0x%"UVxf"\n",
- PTR2UV(cx->blk_format.retop));
- break;
+ PerlIO_printf(Perl_debug_log, "BLK_FORMAT.CV = 0x%" UVxf "\n",
+ PTR2UV(cx->blk_format.cv));
+ PerlIO_printf(Perl_debug_log, "BLK_FORMAT.GV = 0x%" UVxf "\n",
+ PTR2UV(cx->blk_format.gv));
+ PerlIO_printf(Perl_debug_log, "BLK_FORMAT.DFOUTGV = 0x%" UVxf "\n",
+ PTR2UV(cx->blk_format.dfoutgv));
+ PerlIO_printf(Perl_debug_log, "BLK_FORMAT.HASARGS = %d\n",
+ (int)CxHASARGS(cx));
+ PerlIO_printf(Perl_debug_log, "BLK_FORMAT.RETOP = 0x%" UVxf "\n",
+ PTR2UV(cx->blk_format.retop));
+ break;
case CXt_SUB:
- PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n",
- PTR2UV(cx->blk_sub.cv));
- PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n",
- (long)cx->blk_sub.olddepth);
- PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n",
- (int)CxHASARGS(cx));
- PerlIO_printf(Perl_debug_log, "BLK_SUB.LVAL = %d\n", (int)CxLVAL(cx));
- PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%"UVxf"\n",
- PTR2UV(cx->blk_sub.retop));
- break;
+ PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%" UVxf "\n",
+ PTR2UV(cx->blk_sub.cv));
+ PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n",
+ (long)cx->blk_sub.olddepth);
+ PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n",
+ (int)CxHASARGS(cx));
+ PerlIO_printf(Perl_debug_log, "BLK_SUB.LVAL = %d\n", (int)CxLVAL(cx));
+ PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%" UVxf "\n",
+ PTR2UV(cx->blk_sub.retop));
+ break;
case CXt_EVAL:
- PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n",
- (long)CxOLD_IN_EVAL(cx));
- PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n",
- PL_op_name[CxOLD_OP_TYPE(cx)],
- PL_op_desc[CxOLD_OP_TYPE(cx)]);
- if (cx->blk_eval.old_namesv)
- PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n",
- SvPVX_const(cx->blk_eval.old_namesv));
- PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%"UVxf"\n",
- PTR2UV(cx->blk_eval.old_eval_root));
- PerlIO_printf(Perl_debug_log, "BLK_EVAL.RETOP = 0x%"UVxf"\n",
- PTR2UV(cx->blk_eval.retop));
- break;
+ PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n",
+ (long)CxOLD_IN_EVAL(cx));
+ PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n",
+ PL_op_name[CxOLD_OP_TYPE(cx)],
+ PL_op_desc[CxOLD_OP_TYPE(cx)]);
+ if (cx->blk_eval.old_namesv)
+ PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n",
+ SvPVX_const(cx->blk_eval.old_namesv));
+ PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%" UVxf "\n",
+ PTR2UV(cx->blk_eval.old_eval_root));
+ PerlIO_printf(Perl_debug_log, "BLK_EVAL.RETOP = 0x%" UVxf "\n",
+ PTR2UV(cx->blk_eval.retop));
+ break;
+ case CXt_LOOP_PLAIN:
case CXt_LOOP_LAZYIV:
case CXt_LOOP_LAZYSV:
- case CXt_LOOP_FOR:
- case CXt_LOOP_PLAIN:
- PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n", CxLABEL(cx));
- PerlIO_printf(Perl_debug_log, "BLK_LOOP.RESETSP = %ld\n",
- (long)cx->blk_loop.resetsp);
- PerlIO_printf(Perl_debug_log, "BLK_LOOP.MY_OP = 0x%"UVxf"\n",
- PTR2UV(cx->blk_loop.my_op));
- PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%"UVxf"\n",
- PTR2UV(CX_LOOP_NEXTOP_GET(cx)));
- /* XXX: not accurate for LAZYSV/IV */
- PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%"UVxf"\n",
- PTR2UV(cx->blk_loop.state_u.ary.ary));
- PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n",
- (long)cx->blk_loop.state_u.ary.ix);
- PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%"UVxf"\n",
- PTR2UV(CxITERVAR(cx)));
- break;
+ case CXt_LOOP_LIST:
+ case CXt_LOOP_ARY:
+ PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n", CxLABEL(cx));
+ PerlIO_printf(Perl_debug_log, "BLK_LOOP.MY_OP = 0x%" UVxf "\n",
+ PTR2UV(cx->blk_loop.my_op));
+ if (CxTYPE(cx) != CXt_LOOP_PLAIN) {
+ PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%" UVxf "\n",
+ PTR2UV(CxITERVAR(cx)));
+ PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%" UVxf "\n",
+ PTR2UV(cx->blk_loop.itersave));
+ }
+ if (CxTYPE(cx) == CXt_LOOP_ARY) {
+ PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%" UVxf "\n",
+ PTR2UV(cx->blk_loop.state_u.ary.ary));
+ PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n",
+ (long)cx->blk_loop.state_u.ary.ix);
+ }
+ break;
case CXt_SUBST:
- PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n",
- (long)cx->sb_iters);
- PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n",
- (long)cx->sb_maxiters);
- PerlIO_printf(Perl_debug_log, "SB_RFLAGS = %ld\n",
- (long)cx->sb_rflags);
- PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n",
- (long)CxONCE(cx));
- PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n",
- cx->sb_orig);
- PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%"UVxf"\n",
- PTR2UV(cx->sb_dstr));
- PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%"UVxf"\n",
- PTR2UV(cx->sb_targ));
- PerlIO_printf(Perl_debug_log, "SB_S = 0x%"UVxf"\n",
- PTR2UV(cx->sb_s));
- PerlIO_printf(Perl_debug_log, "SB_M = 0x%"UVxf"\n",
- PTR2UV(cx->sb_m));
- PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%"UVxf"\n",
- PTR2UV(cx->sb_strend));
- PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%"UVxf"\n",
- PTR2UV(cx->sb_rxres));
- break;
+ PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n",
+ (long)cx->sb_iters);
+ PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n",
+ (long)cx->sb_maxiters);
+ PerlIO_printf(Perl_debug_log, "SB_RFLAGS = %ld\n",
+ (long)cx->sb_rflags);
+ PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n",
+ (long)CxONCE(cx));
+ PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n",
+ cx->sb_orig);
+ PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%" UVxf "\n",
+ PTR2UV(cx->sb_dstr));
+ PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%" UVxf "\n",
+ PTR2UV(cx->sb_targ));
+ PerlIO_printf(Perl_debug_log, "SB_S = 0x%" UVxf "\n",
+ PTR2UV(cx->sb_s));
+ PerlIO_printf(Perl_debug_log, "SB_M = 0x%" UVxf "\n",
+ PTR2UV(cx->sb_m));
+ PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%" UVxf "\n",
+ PTR2UV(cx->sb_strend));
+ PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%" UVxf "\n",
+ PTR2UV(cx->sb_rxres));
+ break;
}
#else
PERL_UNUSED_CONTEXT;
}
/*
- * Local variables:
- * c-indentation-style: bsd
- * c-basic-offset: 4
- * indent-tabs-mode: t
- * End:
- *
- * ex: set ts=8 sts=4 sw=4 noet:
+=for apidoc_section $callback
+=for apidoc mortal_destructor_sv
+
+This function arranges for either a Perl code reference, or a C function
+reference to be called at the B<end of the current statement>.
+
+The C<coderef> argument determines the type of function that will be
+called. If it is C<SvROK()> it is assumed to be a reference to a CV and
+will arrange for the coderef to be called. If it is not SvROK() then it
+is assumed to be a C<SvIV()> which is C<SvIOK()> whose value is a pointer
+to a C function of type C<DESTRUCTORFUNC_t> created using C<PTR2INT()>.
+Either way the C<args> parameter will be provided to the callback as a
+parameter, although the rules for doing so differ between the Perl and
+C mode. Normally this function is only used directly for the Perl case
+and the wrapper C<mortal_destructor_x()> is used for the C function case.
+
+When operating in Perl callback mode the C<args> parameter may be NULL
+in which case the code reference is called with no arguments, otherwise
+if it is an AV (SvTYPE(args) == SVt_PVAV) then the contents of the AV
+will be used as the arguments to the code reference, and if it is any
+other type then the C<args> SV will be provided as a single argument to
+the code reference.
+
+When operating in a C callback mode the C<args> parameter will be passed
+directly to the C function as a C<void *> pointer. No additional
+processing of the argument will be peformed, and it is the callers
+responsibility to free the C<args> parameter if necessary.
+
+Be aware that there is a signficant difference in timing between the
+I<end of the current statement> and the I<end of the current pseudo
+block>. If you are looking for a mechanism to trigger a function at the
+end of the B<current pseudo block> you should look at
+C<SAVEDESTRUCTORX()> instead of this function.
+
+=for apidoc mortal_svfunc_x
+
+This function arranges for a C function reference to be called at the
+B<end of the current statement> with the arguments provided. It is a
+wrapper around C<mortal_destructor_sv()> which ensures that the latter
+function is called appropriately.
+
+Be aware that there is a signficant difference in timing between the
+I<end of the current statement> and the I<end of the current pseudo
+block>. If you are looking for a mechanism to trigger a function at the
+end of the B<current pseudo block> you should look at
+C<SAVEDESTRUCTORX()> instead of this function.
+
+=for apidoc magic_freedestruct
+
+This function is called via magic to implement the
+C<mortal_destructor_sv()> and C<mortal_destructor_x()> functions. It
+should not be called directly and has no user servicable parts.
+
+=cut
+*/
+
+void
+Perl_mortal_destructor_sv(pTHX_ SV *coderef, SV *args) {
+ PERL_ARGS_ASSERT_MORTAL_DESTRUCTOR_SV;
+ assert(
+ (SvROK(coderef) && SvTYPE(SvRV(coderef)) == SVt_PVCV) /* perl coderef */
+ ||
+ (SvIOK(coderef) && !SvROK(coderef)) /* C function ref */
+ );
+ SV *variable = newSV_type_mortal(SVt_IV);
+ (void)sv_magicext(variable, coderef, PERL_MAGIC_destruct,
+ &PL_vtbl_destruct, (char *)args, args ? HEf_SVKEY : 0);
+}
+
+
+void
+Perl_mortal_svfunc_x(pTHX_ SVFUNC_t f, SV *sv) {
+ PERL_ARGS_ASSERT_MORTAL_SVFUNC_X;
+ SV *sviv = newSViv(PTR2IV(f));
+ mortal_destructor_sv(sviv,sv);
+}
+
+
+int
+Perl_magic_freedestruct(pTHX_ SV* sv, MAGIC* mg) {
+ PERL_ARGS_ASSERT_MAGIC_FREEDESTRUCT;
+ dSP;
+ union {
+ SV *sv;
+ AV *av;
+ char *pv;
+ } args_any;
+ SV *coderef;
+
+ IV nargs = 0;
+ if (PL_phase == PERL_PHASE_DESTRUCT) {
+ Perl_warn(aTHX_ "Can't call destructor for 0x%p in global destruction\n", sv);
+ return 1;
+ }
+
+ args_any.pv = mg->mg_ptr;
+ coderef = mg->mg_obj;
+
+ /* Deal with C function destructor */
+ if (SvTYPE(coderef) == SVt_IV && !SvROK(coderef)) {
+ SVFUNC_t f = INT2PTR(SVFUNC_t, SvIV(coderef));
+ (f)(aTHX_ args_any.sv);
+ return 0;
+ }
+
+ if (args_any.sv) {
+ if (SvTYPE(args_any.sv) == SVt_PVAV) {
+ nargs = av_len(args_any.av) + 1;
+ } else {
+ nargs = 1;
+ }
+ }
+ PUSHSTACKi(PERLSI_MAGIC);
+ ENTER_with_name("call_freedestruct");
+ SAVETMPS;
+ EXTEND(SP, nargs);
+ PUSHMARK(SP);
+ if (args_any.sv) {
+ if (SvTYPE(args_any.sv) == SVt_PVAV) {
+ IV n;
+ for (n = 0 ; n < nargs ; n++ ) {
+ SV **argp = av_fetch(args_any.av, n, 0);
+ if (argp && *argp)
+ PUSHs(*argp);
+ }
+ } else {
+ PUSHs(args_any.sv);
+ }
+ }
+ PUTBACK;
+ (void)call_sv(coderef, G_VOID | G_EVAL | G_KEEPERR);
+ FREETMPS;
+ LEAVE_with_name("call_freedestruct");
+ POPSTACK;
+ return 0;
+}
+
+
+/*
+ * ex: set ts=8 sts=4 sw=4 et:
*/
https://perl5.git.perl.org / perl5.git / blobdiff