DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%"UVxf": (%05ld) malloc %ld bytes\n",PTR2UV(ptr),(long)PL_an++,(long)size));
if (ptr != NULL) {
#ifdef PERL_TRACK_MEMPOOL
- ((struct perl_memory_debug_header *)ptr)->interpreter = aTHX;
+ struct perl_memory_debug_header *const header
+ = (struct perl_memory_debug_header *)ptr;
+#endif
+
+#ifdef PERL_POISON
+ PoisonNew(((char *)ptr), size, char);
+#endif
+
+#ifdef PERL_TRACK_MEMPOOL
+ header->interpreter = aTHX;
+ /* Link us into the list. */
+ header->prev = &PL_memory_debug_header;
+ header->next = PL_memory_debug_header.next;
+ PL_memory_debug_header.next = header;
+ header->next->prev = header;
# ifdef PERL_POISON
- ((struct perl_memory_debug_header *)ptr)->size = size;
- ((struct perl_memory_debug_header *)ptr)->in_use = PERL_POISON_INUSE;
+ header->size = size;
# endif
ptr = (Malloc_t)((char*)ptr+sTHX);
#endif
#ifdef PERL_TRACK_MEMPOOL
where = (Malloc_t)((char*)where-sTHX);
size += sTHX;
- if (((struct perl_memory_debug_header *)where)->interpreter != aTHX) {
- Perl_croak_nocontext("panic: realloc from wrong pool");
- }
+ {
+ struct perl_memory_debug_header *const header
+ = (struct perl_memory_debug_header *)where;
+
+ if (header->interpreter != aTHX) {
+ Perl_croak_nocontext("panic: realloc from wrong pool");
+ }
+ assert(header->next->prev == header);
+ assert(header->prev->next == header);
# ifdef PERL_POISON
- if (((struct perl_memory_debug_header *)where)->size > size) {
- const MEM_SIZE freed_up =
- ((struct perl_memory_debug_header *)where)->size - size;
- char *start_of_freed = ((char *)where) + size;
- Poison(start_of_freed, freed_up, char);
- }
- ((struct perl_memory_debug_header *)where)->size = size;
+ if (header->size > size) {
+ const MEM_SIZE freed_up = header->size - size;
+ char *start_of_freed = ((char *)where) + size;
+ PoisonFree(start_of_freed, freed_up, char);
+ }
+ header->size = size;
# endif
+ }
#endif
#ifdef DEBUGGING
if ((long)size < 0)
if (ptr != NULL) {
#ifdef PERL_TRACK_MEMPOOL
+ struct perl_memory_debug_header *const header
+ = (struct perl_memory_debug_header *)ptr;
+
+# ifdef PERL_POISON
+ if (header->size < size) {
+ const MEM_SIZE fresh = size - header->size;
+ char *start_of_fresh = ((char *)ptr) + size;
+ PoisonNew(start_of_fresh, fresh, char);
+ }
+# endif
+
+ header->next->prev = header;
+ header->prev->next = header;
+
ptr = (Malloc_t)((char*)ptr+sTHX);
#endif
return ptr;
if (where) {
#ifdef PERL_TRACK_MEMPOOL
where = (Malloc_t)((char*)where-sTHX);
- if (((struct perl_memory_debug_header *)where)->interpreter != aTHX) {
- Perl_croak_nocontext("panic: free from wrong pool");
- }
-# ifdef PERL_POISON
{
- if (((struct perl_memory_debug_header *)where)->in_use
- == PERL_POISON_FREE) {
+ struct perl_memory_debug_header *const header
+ = (struct perl_memory_debug_header *)where;
+
+ if (header->interpreter != aTHX) {
+ Perl_croak_nocontext("panic: free from wrong pool");
+ }
+ if (!header->prev) {
Perl_croak_nocontext("panic: duplicate free");
}
- if (((struct perl_memory_debug_header *)where)->in_use
- != PERL_POISON_INUSE) {
- Perl_croak_nocontext("panic: bad free ");
+ if (!(header->next) || header->next->prev != header
+ || header->prev->next != header) {
+ Perl_croak_nocontext("panic: bad free");
}
- ((struct perl_memory_debug_header *)where)->in_use
- = PERL_POISON_FREE;
- }
- Poison(where, ((struct perl_memory_debug_header *)where)->size, char);
+ /* Unlink us from the chain. */
+ header->next->prev = header->prev;
+ header->prev->next = header->next;
+# ifdef PERL_POISON
+ PoisonNew(where, header->size, char);
# endif
+ /* Trigger the duplicate free warning. */
+ header->next = NULL;
+ }
#endif
PerlMem_free(where);
}
if (ptr != NULL) {
memset((void*)ptr, 0, size);
#ifdef PERL_TRACK_MEMPOOL
- ((struct perl_memory_debug_header *)ptr)->interpreter = aTHX;
+ {
+ struct perl_memory_debug_header *const header
+ = (struct perl_memory_debug_header *)ptr;
+
+ header->interpreter = aTHX;
+ /* Link us into the list. */
+ header->prev = &PL_memory_debug_header;
+ header->next = PL_memory_debug_header.next;
+ PL_memory_debug_header.next = header;
+ header->next->prev = header;
# ifdef PERL_POISON
- ((struct perl_memory_debug_header *)ptr)->size = size;
- ((struct perl_memory_debug_header *)ptr)->in_use = PERL_POISON_INUSE;
+ header->size = size;
# endif
- ptr = (Malloc_t)((char*)ptr+sTHX);
+ ptr = (Malloc_t)((char*)ptr+sTHX);
+ }
#endif
return ptr;
}
Perl_delimcpy(pTHX_ register char *to, register const char *toend, register const char *from, register const char *fromend, register int delim, I32 *retlen)
{
register I32 tolen;
+ PERL_UNUSED_CONTEXT;
+
for (tolen = 0; from < fromend; from++, tolen++) {
if (*from == '\\') {
- if (from[1] == delim)
- from++;
- else {
+ if (from[1] != delim) {
if (to < toend)
*to++ = *from;
tolen++;
- from++;
}
+ from++;
}
else if (*from == delim)
break;
Perl_instr(pTHX_ register const char *big, register const char *little)
{
register I32 first;
+ PERL_UNUSED_CONTEXT;
if (!little)
return (char*)big;
char *
Perl_ninstr(pTHX_ const char *big, const char *bigend, const char *little, const char *lend)
{
+ PERL_UNUSED_CONTEXT;
if (little >= lend)
return (char*)big;
{
register const char *bigbeg;
register const I32 first = *little;
register const char * const littleend = lend;
+ PERL_UNUSED_CONTEXT;
if (little >= littleend)
return (char*)bigend;
{
register const U8 *a = (const U8 *)s1;
register const U8 *b = (const U8 *)s2;
+ PERL_UNUSED_CONTEXT;
+
while (len--) {
if (*a != *b && *a != PL_fold[*b])
return 1;
dVAR;
register const U8 *a = (const U8 *)s1;
register const U8 *b = (const U8 *)s2;
+ PERL_UNUSED_CONTEXT;
+
while (len--) {
if (*a != *b && *a != PL_fold_locale[*b])
return 1;
char *
Perl_savepv(pTHX_ const char *pv)
{
+ PERL_UNUSED_CONTEXT;
if (!pv)
return NULL;
else {
Newx(newaddr,pvlen,char);
return memcpy(newaddr,pv,pvlen);
}
-
}
/* same thing but with a known length */
Perl's version of what C<strndup()> would be if it existed. Returns a
pointer to a newly allocated string which is a duplicate of the first
-C<len> bytes from C<pv>. The memory allocated for the new string can be
-freed with the C<Safefree()> function.
+C<len> bytes from C<pv>, plus a trailing NUL byte. The memory allocated for
+the new string can be freed with the C<Safefree()> function.
=cut
*/
Perl_savepvn(pTHX_ const char *pv, register I32 len)
{
register char *newaddr;
+ PERL_UNUSED_CONTEXT;
Newx(newaddr,len+1,char);
/* Give a meaning to NULL pointer mainly for the use in sv_magic() */
Perl_vform(pTHX_ const char *pat, va_list *args)
{
SV * const sv = mess_alloc();
- sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*));
+ sv_vsetpvfn(sv, pat, strlen(pat), args, NULL, 0, NULL);
return SvPVX(sv);
}
return retval;
}
-STATIC COP*
-S_closest_cop(pTHX_ COP *cop, const OP *o)
+STATIC const COP*
+S_closest_cop(pTHX_ const COP *cop, const OP *o)
{
dVAR;
/* Look for PL_op starting from o. cop is the last COP we've seen. */
return cop;
if (o->op_flags & OPf_KIDS) {
- OP *kid;
+ const OP *kid;
for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) {
- COP *new_cop;
+ const COP *new_cop;
/* If the OP_NEXTSTATE has been optimised away we can still use it
* the get the file and line number. */
if (kid->op_type == OP_NULL && kid->op_targ == OP_NEXTSTATE)
- cop = (COP *)kid;
+ cop = (const COP *)kid;
/* Keep searching, and return when we've found something. */
/* Nothing found. */
- return Null(COP *);
+ return NULL;
}
SV *
{
dVAR;
SV * const sv = mess_alloc();
- static const char dgd[] = " during global destruction.\n";
- sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*));
+ sv_vsetpvfn(sv, pat, strlen(pat), args, NULL, 0, NULL);
if (!SvCUR(sv) || *(SvEND(sv) - 1) != '\n') {
-
/*
* Try and find the file and line for PL_op. This will usually be
* PL_curcop, but it might be a cop that has been optimised away. We
*/
const COP *cop = closest_cop(PL_curcop, PL_curcop->op_sibling);
- if (!cop) cop = PL_curcop;
+ if (!cop)
+ cop = PL_curcop;
if (CopLINE(cop))
Perl_sv_catpvf(aTHX_ sv, " at %s line %"IVdf,
const bool line_mode = (RsSIMPLE(PL_rs) &&
SvCUR(PL_rs) == 1 && *SvPVX_const(PL_rs) == '\n');
Perl_sv_catpvf(aTHX_ sv, ", <%s> %s %"IVdf,
- PL_last_in_gv == PL_argvgv ?
- "" : GvNAME(PL_last_in_gv),
+ PL_last_in_gv == PL_argvgv ? "" : GvNAME(PL_last_in_gv),
line_mode ? "line" : "chunk",
(IV)IoLINES(GvIOp(PL_last_in_gv)));
}
- sv_catpv(sv, PL_dirty ? dgd : ".\n");
+ if (PL_dirty)
+ sv_catpvs(sv, " during global destruction");
+ sv_catpvs(sv, ".\n");
}
return sv;
}
Perl_vwarner(pTHX_ U32 err, const char* pat, va_list* args)
{
dVAR;
- if (ckDEAD(err)) {
+ if (PL_warnhook == PERL_WARNHOOK_FATAL || ckDEAD(err)) {
SV * const msv = vmess(pat, args);
STRLEN msglen;
const char * const message = SvPV_const(msv, msglen);
;
}
+/* Set buffer=NULL to get a new one. */
+STRLEN *
+Perl_new_warnings_bitfield(pTHX_ STRLEN *buffer, const char *const bits,
+ STRLEN size) {
+ const MEM_SIZE len_wanted = sizeof(STRLEN) + size;
+ PERL_UNUSED_CONTEXT;
+ buffer = specialWARN(buffer) ? PerlMemShared_malloc(len_wanted)
+ : PerlMemShared_realloc(buffer, len_wanted);
+ buffer[0] = size;
+ Copy(bits, (buffer + 1), size, char);
+ return buffer;
+}
/* since we've already done strlen() for both nam and val
* we can use that info to make things faster than
I32 max;
char **tmpenv;
- for (max = i; environ[max]; max++) ;
+ max = i;
+ while (environ[max])
+ max++;
tmpenv = (char**)safesysmalloc((max+2) * sizeof(char*));
for (j=0; j<max; j++) { /* copy environment */
const int len = strlen(environ[j]);
}
else
safesysfree(environ[i]);
- nlen = strlen(nam);
- vlen = strlen(val);
+ nlen = strlen(nam);
+ vlen = strlen(val);
- environ[i] = (char*)safesysmalloc((nlen+vlen+2) * sizeof(char));
- /* all that work just for this */
- my_setenv_format(environ[i], nam, nlen, val, vlen);
+ environ[i] = (char*)safesysmalloc((nlen+vlen+2) * sizeof(char));
+ /* all that work just for this */
+ my_setenv_format(environ[i], nam, nlen, val, vlen);
} else {
# endif
-# if defined(__CYGWIN__) || defined(EPOC) || defined(__SYMBIAN32__)
+# if defined(__CYGWIN__) || defined(EPOC) || defined(__SYMBIAN32__) || defined(__riscos__)
# if defined(HAS_UNSETENV)
if (val == NULL) {
(void)unsetenv(nam);
{
register I32 i;
register const I32 len = strlen(nam);
+ PERL_UNUSED_CONTEXT;
for (i = 0; environ[i]; i++) {
if (
I32
Perl_unlnk(pTHX_ const char *f) /* unlink all versions of a file */
{
- I32 i;
+ I32 retries = 0;
- for (i = 0; PerlLIO_unlink(f) >= 0; i++) ;
- return i ? 0 : -1;
+ while (PerlLIO_unlink(f) >= 0)
+ retries++;
+ return retries ? 0 : -1;
}
#endif
type value; \
char c[sizeof(type)]; \
} u; \
- register I32 i; \
- register I32 s = 0; \
+ register U32 i; \
+ register U32 s = 0; \
for (i = 0; i < sizeof(u.c); i++, s += 8) { \
u.c[i] = (n >> s) & 0xFF; \
} \
type value; \
char c[sizeof(type)]; \
} u; \
- register I32 i; \
- register I32 s = 0; \
+ register U32 i; \
+ register U32 s = 0; \
u.value = n; \
n = 0; \
for (i = 0; i < sizeof(u.c); i++, s += 8) { \
type value; \
char c[sizeof(type)]; \
} u; \
- register I32 i; \
- register I32 s = 8*(sizeof(u.c)-1); \
+ register U32 i; \
+ register U32 s = 8*(sizeof(u.c)-1); \
for (i = 0; i < sizeof(u.c); i++, s -= 8) { \
u.c[i] = (n >> s) & 0xFF; \
} \
type value; \
char c[sizeof(type)]; \
} u; \
- register I32 i; \
- register I32 s = 8*(sizeof(u.c)-1); \
+ register U32 i; \
+ register U32 s = 8*(sizeof(u.c)-1); \
u.value = n; \
n = 0; \
for (i = 0; i < sizeof(u.c); i++, s -= 8) { \
taint_proper("Insecure %s%s", "EXEC");
}
if (PerlProc_pipe(p) < 0)
- return Nullfp;
+ return NULL;
/* Try for another pipe pair for error return */
if (PerlProc_pipe(pp) >= 0)
did_pipes = 1;
PerlLIO_close(pp[0]);
PerlLIO_close(pp[1]);
}
- return Nullfp;
+ return NULL;
}
sleep(5);
}
/* If we managed to get status pipe check for exec fail */
if (did_pipes && pid > 0) {
int errkid;
- int n = 0, n1;
+ unsigned n = 0;
+ SSize_t n1;
while (n < sizeof(int)) {
n1 = PerlLIO_read(pp[0],
pid2 = wait4pid(pid, &status, 0);
} while (pid2 == -1 && errno == EINTR);
errno = errkid; /* Propagate errno from kid */
- return Nullfp;
+ return NULL;
}
}
if (did_pipes)
taint_proper("Insecure %s%s", "EXEC");
}
if (PerlProc_pipe(p) < 0)
- return Nullfp;
+ return NULL;
if (doexec && PerlProc_pipe(pp) >= 0)
did_pipes = 1;
while ((pid = PerlProc_fork()) < 0) {
}
if (!doexec)
Perl_croak(aTHX_ "Can't fork");
- return Nullfp;
+ return NULL;
}
sleep(5);
}
#ifdef PERL_USES_PL_PIDSTATUS
hv_clear(PL_pidstatus); /* we have no children */
#endif
- return Nullfp;
+ return NULL;
#undef THIS
#undef THAT
}
PL_forkprocess = pid;
if (did_pipes && pid > 0) {
int errkid;
- int n = 0, n1;
+ unsigned n = 0;
+ SSize_t n1;
while (n < sizeof(int)) {
n1 = PerlLIO_read(pp[0],
pid2 = wait4pid(pid, &status, 0);
} while (pid2 == -1 && errno == EINTR);
errno = errkid; /* Propagate errno from kid */
- return Nullfp;
+ return NULL;
}
}
if (did_pipes)
Perl_rsignal_state(pTHX_ int signo)
{
struct sigaction oact;
+ PERL_UNUSED_CONTEXT;
if (sigaction(signo, (struct sigaction *)NULL, &oact) == -1)
return (Sighandler_t) SIG_ERR;
goto finish;
#endif
#if !defined(HAS_WAITPID) && defined(HAS_WAIT4)
- result = wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *));
+ result = wait4((pid==-1)?0:pid,statusp,flags,NULL);
goto finish;
#endif
#ifdef PERL_USES_PL_PIDSTATUS
{
register I32 todo;
register const char * const frombase = from;
+ PERL_UNUSED_CONTEXT;
if (len == 1) {
register const char c = *from;
if (len == 2 && tmpbuf[0] == '.')
seen_dot = 1;
#endif
+#ifdef HAS_STRLCAT
+ (void)strlcpy(tmpbuf + len, scriptname, sizeof(tmpbuf) - len);
+#else
/* FIXME? Convert to memcpy by storing previous strlen(scriptname)
*/
(void)strcpy(tmpbuf + len, scriptname);
+#endif /* #ifdef HAS_STRLCAT */
#endif /* !VMS */
#ifdef SEARCH_EXTS
char **
Perl_get_op_names(pTHX)
{
- return (char **)PL_op_name;
+ PERL_UNUSED_CONTEXT;
+ return (char **)PL_op_name;
}
char **
Perl_get_op_descs(pTHX)
{
- return (char **)PL_op_desc;
+ PERL_UNUSED_CONTEXT;
+ return (char **)PL_op_desc;
}
const char *
Perl_get_no_modify(pTHX)
{
- return PL_no_modify;
+ PERL_UNUSED_CONTEXT;
+ return PL_no_modify;
}
U32 *
Perl_get_opargs(pTHX)
{
- return (U32 *)PL_opargs;
+ PERL_UNUSED_CONTEXT;
+ return (U32 *)PL_opargs;
}
PPADDR_t*
Perl_get_ppaddr(pTHX)
{
- dVAR;
- return (PPADDR_t*)PL_ppaddr;
+ dVAR;
+ PERL_UNUSED_CONTEXT;
+ return (PPADDR_t*)PL_ppaddr;
}
#ifndef HAS_GETENV_LEN
Perl_getenv_len(pTHX_ const char *env_elem, unsigned long *len)
{
char * const env_trans = PerlEnv_getenv(env_elem);
+ PERL_UNUSED_CONTEXT;
if (env_trans)
*len = strlen(env_trans);
return env_trans;
Perl_get_vtbl(pTHX_ int vtbl_id)
{
const MGVTBL* result;
+ PERL_UNUSED_CONTEXT;
switch(vtbl_id) {
case want_vtbl_sv:
case want_vtbl_arylen:
result = &PL_vtbl_arylen;
break;
- case want_vtbl_glob:
- result = &PL_vtbl_glob;
- break;
case want_vtbl_mglob:
result = &PL_vtbl_mglob;
break;
result = &PL_vtbl_utf8;
break;
default:
- result = Null(MGVTBL*);
+ result = NULL;
break;
}
return (MGVTBL*)result;
void
Perl_report_evil_fh(pTHX_ const GV *gv, const IO *io, I32 op)
{
- const char * const func =
- op == OP_READLINE ? "readline" : /* "<HANDLE>" not nice */
- op == OP_LEAVEWRITE ? "write" : /* "write exit" not nice */
- PL_op_desc[op];
- const char * const pars = OP_IS_FILETEST(op) ? "" : "()";
- const char * const type = OP_IS_SOCKET(op)
- || (gv && io && IoTYPE(io) == IoTYPE_SOCKET)
- ? "socket" : "filehandle";
const char * const name = gv && isGV(gv) ? GvENAME(gv) : NULL;
if (op == OP_phoney_OUTPUT_ONLY || op == OP_phoney_INPUT_ONLY) {
}
if (ckWARN(warn_type)) {
+ const char * const pars = OP_IS_FILETEST(op) ? "" : "()";
+ const char * const func =
+ op == OP_READLINE ? "readline" : /* "<HANDLE>" not nice */
+ op == OP_LEAVEWRITE ? "write" : /* "write exit" not nice */
+ op < 0 ? "" : /* handle phoney cases */
+ PL_op_desc[op];
+ const char * const type = OP_IS_SOCKET(op)
+ || (gv && io && IoTYPE(io) == IoTYPE_SOCKET)
+ ? "socket" : "filehandle";
if (name && *name) {
Perl_warner(aTHX_ packWARN(warn_type),
"%s%s on %s %s %s", func, pars, vile, type, name);
int secs;
int month, mday, year, jday;
int odd_cent, odd_year;
+ PERL_UNUSED_CONTEXT;
#define DAYS_PER_YEAR 365
#define DAYS_PER_QYEAR (4*DAYS_PER_YEAR+1)
/* Append revision */
av_push(av, newSViv(rev));
- if ( *pos == '.' && isDIGIT(pos[1]) )
+ if ( *pos == '.' )
s = ++pos;
else if ( *pos == '_' && isDIGIT(pos[1]) )
s = ++pos;
if ( av_len(av) == -1 ) /* oops, someone forgot to pass a value */
av_push(av, newSViv(0));
+ /* fix RT#19517 - special case 'undef' as string */
+ if ( *s == 'u' && strEQ(s,"undef") ) {
+ s += 5;
+ }
+
/* And finally, store the AV in the hash */
hv_store((HV *)hv, "version", 7, newRV_noinc((SV *)av), 0);
return s;
}
#ifdef SvVOK
{
- const MAGIC* const mg = SvVOK(ver);
+ const MAGIC* const mg = SvVSTRING_mg(ver);
if ( mg ) { /* already a v-string */
const STRLEN len = mg->mg_len;
char * const version = savepvn( (const char*)mg->mg_ptr, len);
if ( SvNOK(ver) ) /* may get too much accuracy */
{
char tbuf[64];
- const STRLEN len = my_sprintf(tbuf,"%.9"NVgf, SvNVX(ver));
+ STRLEN len = my_snprintf(tbuf, sizeof(tbuf), "%.9"NVff, SvNVX(ver));
+ while (tbuf[len-1] == '0' && len > 0) len--;
version = savepvn(tbuf, len);
}
#ifdef SvVOK
- else if ( (mg = SvVOK(ver)) ) { /* already a v-string */
+ else if ( (mg = SvVSTRING_mg(ver)) ) { /* already a v-string */
version = savepvn( (const char*)mg->mg_ptr,mg->mg_len );
qv = 1;
}
{
version = savepv(SvPV_nolen(ver));
}
+
s = scan_version(version, ver, qv);
if ( *s != '\0' )
- if(ckWARN(WARN_MISC))
+ if(ckWARN(WARN_MISC))
Perl_warner(aTHX_ packWARN(WARN_MISC),
- "Version string '%s' contains invalid data; "
- "ignoring: '%s'", version, s);
+ "Version string '%s' contains invalid data; "
+ "ignoring: '%s'", version, s);
Safefree(version);
return ver;
}
void
Perl_sv_nosharing(pTHX_ SV *sv)
{
+ PERL_UNUSED_CONTEXT;
PERL_UNUSED_ARG(sv);
}
if (*p) {
if (isDIGIT(*p)) {
opt = (U32) atoi(p);
- while (isDIGIT(*p)) p++;
+ while (isDIGIT(*p))
+ p++;
if (*p && *p != '\n' && *p != '\r')
Perl_croak(aTHX_ "Unknown Unicode option letter '%c'", *p);
}
opt |= PERL_UNICODE_LOCALE_FLAG; break;
case PERL_UNICODE_ARGV:
opt |= PERL_UNICODE_ARGV_FLAG; break;
+ case PERL_UNICODE_UTF8CACHEASSERT:
+ opt |= PERL_UNICODE_UTF8CACHEASSERT_FLAG; break;
default:
if (*p != '\n' && *p != '\r')
Perl_croak(aTHX_
UV myseed = 0;
if (s)
- while (isSPACE(*s)) s++;
+ while (isSPACE(*s))
+ s++;
if (s && isDIGIT(*s))
myseed = (UV)Atoul(s);
else
{
const char * const stashpv = CopSTASHPV(c);
const char * const name = HvNAME_get(hv);
+ PERL_UNUSED_CONTEXT;
if (stashpv == name)
return TRUE;
#ifdef PERL_MEM_LOG
+/*
+ * PERL_MEM_LOG: the Perl_mem_log_..() will be compiled.
+ *
+ * PERL_MEM_LOG_ENV: if defined, during run time the environment
+ * variable PERL_MEM_LOG will be consulted, and if the integer value
+ * of that is true, the logging will happen. (The default is to
+ * always log if the PERL_MEM_LOG define was in effect.)
+ */
+
+/*
+ * PERL_MEM_LOG_SPRINTF_BUF_SIZE: size of a (stack-allocated) buffer
+ * the Perl_mem_log_...() will use (either via sprintf or snprintf).
+ */
#define PERL_MEM_LOG_SPRINTF_BUF_SIZE 128
+/*
+ * PERL_MEM_LOG_FD: the file descriptor the Perl_mem_log_...() will
+ * log to. You can also define in compile time PERL_MEM_LOG_ENV_FD,
+ * in which case the environment variable PERL_MEM_LOG_FD will be
+ * consulted for the file descriptor number to use.
+ */
+#ifndef PERL_MEM_LOG_FD
+# define PERL_MEM_LOG_FD 2 /* If STDERR is too boring for you. */
+#endif
+
Malloc_t
Perl_mem_log_alloc(const UV n, const UV typesize, const char *typename, Malloc_t newalloc, const char *filename, const int linenumber, const char *funcname)
{
#ifdef PERL_MEM_LOG_STDERR
- /* We can't use PerlIO for obvious reasons. */
- char buf[PERL_MEM_LOG_SPRINTF_BUF_SIZE];
- const STRLEN len = my_sprintf(buf,
- "alloc: %s:%d:%s: %"IVdf" %"UVuf
- " %s = %"IVdf": %"UVxf"\n",
- filename, linenumber, funcname, n, typesize,
- typename, n * typesize, PTR2UV(newalloc));
- PerlLIO_write(2, buf, len);
+# if defined(PERL_MEM_LOG_ENV) || defined(PERL_MEM_LOG_ENV_FD)
+ char *s;
+# endif
+# ifdef PERL_MEM_LOG_ENV
+ s = getenv("PERL_MEM_LOG");
+ if (s ? atoi(s) : 0)
+# endif
+ {
+ /* We can't use SVs or PerlIO for obvious reasons,
+ * so we'll use stdio and low-level IO instead. */
+ char buf[PERL_MEM_LOG_SPRINTF_BUF_SIZE];
+# ifdef PERL_MEM_LOG_TIMESTAMP
+ struct timeval tv;
+# ifdef HAS_GETTIMEOFDAY
+ gettimeofday(&tv, 0);
+# endif
+ /* If there are other OS specific ways of hires time than
+ * gettimeofday() (see ext/Time/HiRes), the easiest way is
+ * probably that they would be used to fill in the struct
+ * timeval. */
+# endif
+ {
+ const STRLEN len =
+ my_snprintf(buf,
+ PERL_MEM_LOG_SPRINTF_BUF_SIZE,
+# ifdef PERL_MEM_LOG_TIMESTAMP
+ "%10d.%06d: "
+# endif
+ "alloc: %s:%d:%s: %"IVdf" %"UVuf
+ " %s = %"IVdf": %"UVxf"\n",
+# ifdef PERL_MEM_LOG_TIMESTAMP
+ (int)tv.tv_sec, (int)tv.tv_usec,
+# endif
+ filename, linenumber, funcname, n, typesize,
+ typename, n * typesize, PTR2UV(newalloc));
+# ifdef PERL_MEM_LOG_ENV_FD
+ s = PerlEnv_getenv("PERL_MEM_LOG_FD");
+ PerlLIO_write(s ? atoi(s) : PERL_MEM_LOG_FD, buf, len);
+# else
+ PerlLIO_write(PERL_MEM_LOG_FD, buf, len);
+#endif
+ }
+ }
#endif
return newalloc;
}
Perl_mem_log_realloc(const UV n, const UV typesize, const char *typename, Malloc_t oldalloc, Malloc_t newalloc, const char *filename, const int linenumber, const char *funcname)
{
#ifdef PERL_MEM_LOG_STDERR
- /* We can't use PerlIO for obvious reasons. */
- char buf[PERL_MEM_LOG_SPRINTF_BUF_SIZE];
- const STRLEN len = my_sprintf(buf, "realloc: %s:%d:%s: %"IVdf" %"UVuf
- " %s = %"IVdf": %"UVxf" -> %"UVxf"\n",
- filename, linenumber, funcname, n, typesize,
- typename, n * typesize, PTR2UV(oldalloc),
- PTR2UV(newalloc));
- PerlLIO_write(2, buf, len);
+# if defined(PERL_MEM_LOG_ENV) || defined(PERL_MEM_LOG_ENV_FD)
+ char *s;
+# endif
+# ifdef PERL_MEM_LOG_ENV
+ s = PerlEnv_getenv("PERL_MEM_LOG");
+ if (s ? atoi(s) : 0)
+# endif
+ {
+ /* We can't use SVs or PerlIO for obvious reasons,
+ * so we'll use stdio and low-level IO instead. */
+ char buf[PERL_MEM_LOG_SPRINTF_BUF_SIZE];
+# ifdef PERL_MEM_LOG_TIMESTAMP
+ struct timeval tv;
+ gettimeofday(&tv, 0);
+# endif
+ {
+ const STRLEN len =
+ my_snprintf(buf,
+ PERL_MEM_LOG_SPRINTF_BUF_SIZE,
+# ifdef PERL_MEM_LOG_TIMESTAMP
+ "%10d.%06d: "
+# endif
+ "realloc: %s:%d:%s: %"IVdf" %"UVuf
+ " %s = %"IVdf": %"UVxf" -> %"UVxf"\n",
+# ifdef PERL_MEM_LOG_TIMESTAMP
+ (int)tv.tv_sec, (int)tv.tv_usec,
+# endif
+ filename, linenumber, funcname, n, typesize,
+ typename, n * typesize, PTR2UV(oldalloc),
+ PTR2UV(newalloc));
+# ifdef PERL_MEM_LOG_ENV_FD
+ s = PerlEnv_getenv("PERL_MEM_LOG_FD");
+ PerlLIO_write(s ? atoi(s) : PERL_MEM_LOG_FD, buf, len);
+# else
+ PerlLIO_write(PERL_MEM_LOG_FD, buf, len);
+# endif
+ }
+ }
#endif
return newalloc;
}
Perl_mem_log_free(Malloc_t oldalloc, const char *filename, const int linenumber, const char *funcname)
{
#ifdef PERL_MEM_LOG_STDERR
- /* We can't use PerlIO for obvious reasons. */
- char buf[PERL_MEM_LOG_SPRINTF_BUF_SIZE];
- const STRLEN len = my_sprintf(buf, "free: %s:%d:%s: %"UVxf"\n",
- filename, linenumber, funcname,
- PTR2UV(oldalloc));
- PerlLIO_write(2, buf, len);
+# if defined(PERL_MEM_LOG_ENV) || defined(PERL_MEM_LOG_ENV_FD)
+ char *s;
+# endif
+# ifdef PERL_MEM_LOG_ENV
+ s = PerlEnv_getenv("PERL_MEM_LOG");
+ if (s ? atoi(s) : 0)
+# endif
+ {
+ /* We can't use SVs or PerlIO for obvious reasons,
+ * so we'll use stdio and low-level IO instead. */
+ char buf[PERL_MEM_LOG_SPRINTF_BUF_SIZE];
+# ifdef PERL_MEM_LOG_TIMESTAMP
+ struct timeval tv;
+ gettimeofday(&tv, 0);
+# endif
+ {
+ const STRLEN len =
+ my_snprintf(buf,
+ PERL_MEM_LOG_SPRINTF_BUF_SIZE,
+# ifdef PERL_MEM_LOG_TIMESTAMP
+ "%10d.%06d: "
+# endif
+ "free: %s:%d:%s: %"UVxf"\n",
+# ifdef PERL_MEM_LOG_TIMESTAMP
+ (int)tv.tv_sec, (int)tv.tv_usec,
+# endif
+ filename, linenumber, funcname,
+ PTR2UV(oldalloc));
+# ifdef PERL_MEM_LOG_ENV_FD
+ s = PerlEnv_getenv("PERL_MEM_LOG_FD");
+ PerlLIO_write(s ? atoi(s) : PERL_MEM_LOG_FD, buf, len);
+# else
+ PerlLIO_write(PERL_MEM_LOG_FD, buf, len);
+# endif
+ }
+ }
#endif
return oldalloc;
}
}
#endif
+/*
+=for apidoc my_snprintf
+
+The C library C<snprintf> functionality, if available and
+standards-compliant (uses C<vsnprintf>, actually). However, if the
+C<vsnprintf> is not available, will unfortunately use the unsafe
+C<vsprintf> which can overrun the buffer (there is an overrun check,
+but that may be too late). Consider using C<sv_vcatpvf> instead, or
+getting C<vsnprintf>.
+
+=cut
+*/
+int
+Perl_my_snprintf(char *buffer, const Size_t len, const char *format, ...)
+{
+ dTHX;
+ int retval;
+ va_list ap;
+ va_start(ap, format);
+#ifdef HAS_VSNPRINTF
+ retval = vsnprintf(buffer, len, format, ap);
+#else
+ retval = vsprintf(buffer, format, ap);
+#endif
+ va_end(ap);
+ /* vsnprintf() shows failure with >= len, vsprintf() with < 0 */
+ if (retval < 0 || (len > 0 && (Size_t)retval >= len))
+ Perl_croak(aTHX_ "panic: my_snprintf buffer overflow");
+ return retval;
+}
+
+/*
+=for apidoc my_vsnprintf
+
+The C library C<vsnprintf> if available and standards-compliant.
+However, if if the C<vsnprintf> is not available, will unfortunately
+use the unsafe C<vsprintf> which can overrun the buffer (there is an
+overrun check, but that may be too late). Consider using
+C<sv_vcatpvf> instead, or getting C<vsnprintf>.
+
+=cut
+*/
+int
+Perl_my_vsnprintf(char *buffer, const Size_t len, const char *format, va_list ap)
+{
+ dTHX;
+ int retval;
+#ifdef NEED_VA_COPY
+ va_list apc;
+ Perl_va_copy(ap, apc);
+# ifdef HAS_VSNPRINTF
+ retval = vsnprintf(buffer, len, format, apc);
+# else
+ retval = vsprintf(buffer, format, apc);
+# endif
+#else
+# ifdef HAS_VSNPRINTF
+ retval = vsnprintf(buffer, len, format, ap);
+# else
+ retval = vsprintf(buffer, format, ap);
+# endif
+#endif /* #ifdef NEED_VA_COPY */
+ /* vsnprintf() shows failure with >= len, vsprintf() with < 0 */
+ if (retval < 0 || (len > 0 && (Size_t)retval >= len))
+ Perl_croak(aTHX_ "panic: my_vsnprintf buffer overflow");
+ return retval;
+}
+
void
Perl_my_clearenv(pTHX)
{