+#define PERL_NO_GET_CONTEXT
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
-/*
-# Devel::DProf - a Perl code profiler
-# 5apr95
-# Dean Roehrich
-#
-# changes/bugs fixed since 2apr95 version:
-# -now mallocing an extra byte for the \0 :)
-# changes/bugs fixed since 01mar95 version:
-# -stringified code ref is used for name of anonymous sub.
-# -include stash name with stringified code ref.
-# -use perl.c's DBsingle and DBsub.
-# -now using croak() and warn().
-# -print "timer is on" before turning timer on.
-# -use safefree() instead of free().
-# -rely on PM to provide full path name to tmon.out.
-# -print errno if unable to write tmon.out.
-# changes/bugs fixed since 03feb95 version:
-# -comments
-# changes/bugs fixed since 31dec94 version:
-# -added patches from Andy.
-#
-*/
-
-/*#define DBG_SUB 1 /* */
-/*#define DBG_TIMER 1 /* */
+/*#define DBG_SUB 1 */
+/*#define DBG_TIMER 1 */
#ifdef DBG_SUB
-# define DBG_SUB_NOTIFY(A,B) warn( A, B )
+# define DBG_SUB_NOTIFY(A,B) warn(A, B)
#else
# define DBG_SUB_NOTIFY(A,B) /* nothing */
#endif
#ifdef DBG_TIMER
-# define DBG_TIMER_NOTIFY(A) warn( A )
+# define DBG_TIMER_NOTIFY(A) warn(A)
#else
# define DBG_TIMER_NOTIFY(A) /* nothing */
#endif
/* HZ == clock ticks per second */
-#ifndef HZ
-#define HZ 60
+#ifdef VMS
+# define HZ ((I32)CLK_TCK)
+# define DPROF_HZ HZ
+# include <starlet.h> /* prototype for sys$gettim() */
+# include <lib$routines.h>
+# define Times(ptr) (dprof_times(aTHX_ ptr))
+#else
+# ifndef HZ
+# ifdef CLK_TCK
+# define HZ ((I32)CLK_TCK)
+# else
+# define HZ 60
+# endif
+# endif
+# ifdef OS2 /* times() has significant overhead */
+# define Times(ptr) (dprof_times(aTHX_ ptr))
+# define INCL_DOSPROFILE
+# define INCL_DOSERRORS
+# include <os2.h>
+# define toLongLong(arg) (*(long long*)&(arg))
+# define DPROF_HZ g_dprof_ticks
+# else
+# define Times(ptr) (times(ptr))
+# define DPROF_HZ HZ
+# endif
#endif
-static SV * Sub; /* pointer to $DB::sub */
-static char *Tmon; /* name of tmon.out */
+XS(XS_Devel__DProf_END); /* used by prof_mark() */
/* Everything is built on times(2). See its manpage for a description
* of the timings.
*/
-static
-struct tms prof_start,
- prof_end;
-
-static
-clock_t rprof_start, /* elapsed real time, in ticks */
- rprof_end;
-
union prof_any {
- clock_t tms_utime; /* cpu time spent in user space */
- clock_t tms_stime; /* cpu time spent in system */
- clock_t realtime; /* elapsed real time, in ticks */
- char *name;
- opcode ptype;
+ clock_t tms_utime; /* cpu time spent in user space */
+ clock_t tms_stime; /* cpu time spent in system */
+ clock_t realtime; /* elapsed real time, in ticks */
+ char *name;
+ U32 id;
+ opcode ptype;
};
typedef union prof_any PROFANY;
-static PROFANY *profstack;
-static int profstack_max = 128;
-static int profstack_ix = 0;
+typedef struct {
+ U32 dprof_ticks;
+ char* out_file_name; /* output file (defaults to tmon.out) */
+ PerlIO* fp; /* pointer to tmon.out file */
+ long TIMES_LOCATION; /* Where in the file to store the time totals */
+ int SAVE_STACK; /* How much data to buffer until end of run */
+ int prof_pid; /* pid of profiled process */
+ struct tms prof_start;
+ struct tms prof_end;
+ clock_t rprof_start; /* elapsed real time ticks */
+ clock_t rprof_end;
+ clock_t wprof_u;
+ clock_t wprof_s;
+ clock_t wprof_r;
+ clock_t otms_utime;
+ clock_t otms_stime;
+ clock_t orealtime;
+ PROFANY* profstack;
+ int profstack_max;
+ int profstack_ix;
+ HV* cv_hash;
+ U32 total;
+ U32 lastid;
+ U32 default_perldb;
+ UV depth;
+#ifdef OS2
+ ULONG frequ;
+ long long start_cnt;
+#endif
+#ifdef PERL_IMPLICIT_CONTEXT
+# define register
+ pTHX;
+# undef register
+#endif
+} prof_state_t;
+
+prof_state_t g_prof_state;
+
+#define g_dprof_ticks g_prof_state.dprof_ticks
+#define g_out_file_name g_prof_state.out_file_name
+#define g_fp g_prof_state.fp
+#define g_TIMES_LOCATION g_prof_state.TIMES_LOCATION
+#define g_SAVE_STACK g_prof_state.SAVE_STACK
+#define g_prof_pid g_prof_state.prof_pid
+#define g_prof_start g_prof_state.prof_start
+#define g_prof_end g_prof_state.prof_end
+#define g_rprof_start g_prof_state.rprof_start
+#define g_rprof_end g_prof_state.rprof_end
+#define g_wprof_u g_prof_state.wprof_u
+#define g_wprof_s g_prof_state.wprof_s
+#define g_wprof_r g_prof_state.wprof_r
+#define g_otms_utime g_prof_state.otms_utime
+#define g_otms_stime g_prof_state.otms_stime
+#define g_orealtime g_prof_state.orealtime
+#define g_profstack g_prof_state.profstack
+#define g_profstack_max g_prof_state.profstack_max
+#define g_profstack_ix g_prof_state.profstack_ix
+#define g_cv_hash g_prof_state.cv_hash
+#define g_total g_prof_state.total
+#define g_lastid g_prof_state.lastid
+#define g_default_perldb g_prof_state.default_perldb
+#define g_depth g_prof_state.depth
+#ifdef PERL_IMPLICIT_CONTEXT
+# define g_THX g_prof_state.aTHX
+#endif
+#ifdef OS2
+# define g_frequ g_prof_state.frequ
+# define g_start_cnt g_prof_state.start_cnt
+#endif
+clock_t
+dprof_times(pTHX_ struct tms *t)
+{
+#ifdef OS2
+ ULONG rc;
+ QWORD cnt;
+ STRLEN n_a;
+
+ if (!g_frequ) {
+ if (CheckOSError(DosTmrQueryFreq(&g_frequ)))
+ croak("DosTmrQueryFreq: %s", SvPV(perl_get_sv("!",TRUE),n_a));
+ else
+ g_frequ = g_frequ/DPROF_HZ; /* count per tick */
+ if (CheckOSError(DosTmrQueryTime(&cnt)))
+ croak("DosTmrQueryTime: %s",
+ SvPV(perl_get_sv("!",TRUE), n_a));
+ g_start_cnt = toLongLong(cnt);
+ }
+
+ if (CheckOSError(DosTmrQueryTime(&cnt)))
+ croak("DosTmrQueryTime: %s", SvPV(perl_get_sv("!",TRUE), n_a));
+ t->tms_stime = 0;
+ return (t->tms_utime = (toLongLong(cnt) - g_start_cnt)/g_frequ);
+#else /* !OS2 */
+# ifdef VMS
+ clock_t retval;
+ /* Get wall time and convert to 10 ms intervals to
+ * produce the return value dprof expects */
+# if defined(__DECC) && defined (__ALPHA)
+# include <ints.h>
+ uint64 vmstime;
+ _ckvmssts(sys$gettim(&vmstime));
+ vmstime /= 100000;
+ retval = vmstime & 0x7fffffff;
+# else
+ /* (Older hw or ccs don't have an atomic 64-bit type, so we
+ * juggle 32-bit ints (and a float) to produce a time_t result
+ * with minimal loss of information.) */
+ long int vmstime[2],remainder,divisor = 100000;
+ _ckvmssts(sys$gettim((unsigned long int *)vmstime));
+ vmstime[1] &= 0x7fff; /* prevent overflow in EDIV */
+ _ckvmssts(lib$ediv(&divisor,vmstime,(long int *)&retval,&remainder));
+# endif
+ /* Fill in the struct tms using the CRTL routine . . .*/
+ times((tbuffer_t *)t);
+ return (clock_t) retval;
+# else /* !VMS && !OS2 */
+ return times(t);
+# endif
+#endif
+}
static void
-prof_mark( ptype )
-opcode ptype;
+prof_dumpa(pTHX_ opcode ptype, U32 id)
{
- struct tms t;
- clock_t realtime;
- char *name, *pv;
- char *hvname;
- STRLEN len;
- SV *sv;
-
- if( profstack_ix + 5 > profstack_max ){
- profstack_max = profstack_max * 3 / 2;
- Renew( profstack, profstack_max, PROFANY );
- }
-
- realtime = times(&t);
- pv = SvPV( Sub, len );
-
- if( SvROK(Sub) ){
- /* Attempt to make CODE refs identifiable by
- * including their package name.
- */
- sv = (SV*)SvRV(Sub);
- if( sv && SvTYPE(sv) == SVt_PVCV ){
- hvname = HvNAME(CvSTASH(sv));
- len += strlen( hvname ) + 2; /* +2 for more ::'s */
+ if (ptype == OP_LEAVESUB) {
+ PerlIO_printf(g_fp,"- %"UVxf"\n", (UV)id);
+ }
+ else if(ptype == OP_ENTERSUB) {
+ PerlIO_printf(g_fp,"+ %"UVxf"\n", (UV)id);
+ }
+ else if(ptype == OP_GOTO) {
+ PerlIO_printf(g_fp,"* %"UVxf"\n", (UV)id);
+ }
+ else if(ptype == OP_DIE) {
+ PerlIO_printf(g_fp,"/ %"UVxf"\n", (UV)id);
+ }
+ else {
+ PerlIO_printf(g_fp,"Profiler unknown prof code %d\n", ptype);
+ }
+}
- }
- else {
- croak( "DProf prof_mark() lost on supposed CODE ref %s.\n", pv );
- }
- name = (char *)safemalloc( len * sizeof(char) + 1 );
- strcpy( name, hvname );
- strcat( name, "::" );
- strcat( name, pv );
- }
- else{
- name = (char *)safemalloc( len * sizeof(char) + 1 );
- strcpy( name, pv );
+static void
+prof_dumps(pTHX_ U32 id, char *pname, char *gname)
+{
+ PerlIO_printf(g_fp,"& %"UVxf" %s %s\n", (UV)id, pname, gname);
+}
+
+static void
+prof_dumpt(pTHX_ long tms_utime, long tms_stime, long realtime)
+{
+ PerlIO_printf(g_fp,"@ %ld %ld %ld\n", tms_utime, tms_stime, realtime);
+}
+
+static void
+prof_dump_until(pTHX_ long ix)
+{
+ long base = 0;
+ struct tms t1, t2;
+ clock_t realtime1, realtime2;
+
+ realtime1 = Times(&t1);
+
+ while (base < ix) {
+ opcode ptype = g_profstack[base++].ptype;
+ if (ptype == OP_TIME) {
+ long tms_utime = g_profstack[base++].tms_utime;
+ long tms_stime = g_profstack[base++].tms_stime;
+ long realtime = g_profstack[base++].realtime;
+
+ prof_dumpt(aTHX_ tms_utime, tms_stime, realtime);
}
+ else if (ptype == OP_GV) {
+ U32 id = g_profstack[base++].id;
+ char *pname = g_profstack[base++].name;
+ char *gname = g_profstack[base++].name;
- profstack[profstack_ix++].ptype = ptype;
- profstack[profstack_ix++].tms_utime = t.tms_utime;
- profstack[profstack_ix++].tms_stime = t.tms_stime;
- profstack[profstack_ix++].realtime = realtime;
- profstack[profstack_ix++].name = name;
+ prof_dumps(aTHX_ id, pname, gname);
+ }
+ else {
+ U32 id = g_profstack[base++].id;
+ prof_dumpa(aTHX_ ptype, id);
+ }
+ }
+ PerlIO_flush(g_fp);
+ realtime2 = Times(&t2);
+ if (realtime2 != realtime1 || t1.tms_utime != t2.tms_utime
+ || t1.tms_stime != t2.tms_stime) {
+ g_wprof_r += realtime2 - realtime1;
+ g_wprof_u += t2.tms_utime - t1.tms_utime;
+ g_wprof_s += t2.tms_stime - t1.tms_stime;
+
+ PerlIO_printf(g_fp,"+ & Devel::DProf::write\n");
+ PerlIO_printf(g_fp,"@ %"IVdf" %"IVdf" %"IVdf"\n",
+ /* The (IV) casts are one possibility:
+ * the Painfully Correct Way would be to
+ * have Clock_t_f. */
+ (IV)(t2.tms_utime - t1.tms_utime),
+ (IV)(t2.tms_stime - t1.tms_stime),
+ (IV)(realtime2 - realtime1));
+ PerlIO_printf(g_fp,"- & Devel::DProf::write\n");
+ g_otms_utime = t2.tms_utime;
+ g_otms_stime = t2.tms_stime;
+ g_orealtime = realtime2;
+ PerlIO_flush(g_fp);
+ }
}
static void
-prof_record(){
- FILE *fp;
- char *name;
- int base = 0;
- opcode ptype;
- clock_t tms_utime;
- clock_t tms_stime;
- clock_t realtime;
-
- if( (fp = fopen( Tmon, "w" )) == NULL ){
- warn("DProf: unable to write %s, errno = %d\n", Tmon, errno );
+prof_mark(pTHX_ opcode ptype)
+{
+ struct tms t;
+ clock_t realtime, rdelta, udelta, sdelta;
+ U32 id;
+ SV *Sub = GvSV(PL_DBsub); /* name of current sub */
+
+ if (g_SAVE_STACK) {
+ if (g_profstack_ix + 5 > g_profstack_max) {
+ g_profstack_max = g_profstack_max * 3 / 2;
+ Renew(g_profstack, g_profstack_max, PROFANY);
+ }
+ }
+
+ realtime = Times(&t);
+ rdelta = realtime - g_orealtime;
+ udelta = t.tms_utime - g_otms_utime;
+ sdelta = t.tms_stime - g_otms_stime;
+ if (rdelta || udelta || sdelta) {
+ if (g_SAVE_STACK) {
+ g_profstack[g_profstack_ix++].ptype = OP_TIME;
+ g_profstack[g_profstack_ix++].tms_utime = udelta;
+ g_profstack[g_profstack_ix++].tms_stime = sdelta;
+ g_profstack[g_profstack_ix++].realtime = rdelta;
+ }
+ else { /* Write it to disk now so's not to eat up core */
+ if (g_prof_pid == (int)getpid()) {
+ prof_dumpt(aTHX_ udelta, sdelta, rdelta);
+ PerlIO_flush(g_fp);
+ }
+ }
+ g_orealtime = realtime;
+ g_otms_stime = t.tms_stime;
+ g_otms_utime = t.tms_utime;
+ }
+
+ {
+ SV **svp;
+ char *gname, *pname;
+ CV *cv;
+
+ cv = INT2PTR(CV*,SvIVX(Sub));
+ svp = hv_fetch(g_cv_hash, (char*)&cv, sizeof(CV*), TRUE);
+ if (!SvOK(*svp)) {
+ GV *gv = CvGV(cv);
+
+ sv_setiv(*svp, id = ++g_lastid);
+ pname = ((GvSTASH(gv) && HvNAME(GvSTASH(gv)))
+ ? HvNAME(GvSTASH(gv))
+ : "(null)");
+ gname = GvNAME(gv);
+ if (CvXSUB(cv) == XS_Devel__DProf_END)
return;
+ if (g_SAVE_STACK) { /* Store it for later recording -JH */
+ g_profstack[g_profstack_ix++].ptype = OP_GV;
+ g_profstack[g_profstack_ix++].id = id;
+ g_profstack[g_profstack_ix++].name = pname;
+ g_profstack[g_profstack_ix++].name = gname;
+ }
+ else { /* Write it to disk now so's not to eat up core */
+ /* Only record the parent's info */
+ if (g_prof_pid == (int)getpid()) {
+ prof_dumps(aTHX_ id, pname, gname);
+ PerlIO_flush(g_fp);
+ }
+ else
+ PL_perldb = 0; /* Do not debug the kid. */
+ }
+ }
+ else {
+ id = SvIV(*svp);
}
+ }
+
+ g_total++;
+ if (g_SAVE_STACK) { /* Store it for later recording -JH */
+ g_profstack[g_profstack_ix++].ptype = ptype;
+ g_profstack[g_profstack_ix++].id = id;
+
+ /* Only record the parent's info */
+ if (g_SAVE_STACK < g_profstack_ix) {
+ if (g_prof_pid == (int)getpid())
+ prof_dump_until(aTHX_ g_profstack_ix);
+ else
+ PL_perldb = 0; /* Do not debug the kid. */
+ g_profstack_ix = 0;
+ }
+ }
+ else { /* Write it to disk now so's not to eat up core */
- fprintf(fp, "#fOrTyTwO\n" );
- fprintf(fp, "$hz=%d;\n", HZ );
- fprintf(fp, "# All values are given in HZ\n" );
- fprintf(fp, "$rrun_utime=%ld; $rrun_stime=%ld; $rrun_rtime=%ld\n",
- prof_end.tms_utime - prof_start.tms_utime,
- prof_end.tms_stime - prof_start.tms_stime,
- rprof_end - rprof_start );
- fprintf(fp, "PART2\n" );
-
- while( base < profstack_ix ){
- ptype = profstack[base++].ptype;
- tms_utime = profstack[base++].tms_utime;
- tms_stime = profstack[base++].tms_stime;
- realtime = profstack[base++].realtime;
- name = profstack[base++].name;
-
- switch( ptype ){
- case OP_LEAVESUB:
- fprintf(fp,"- %ld %ld %ld %s\n",
- tms_utime, tms_stime, realtime, name );
- break;
- case OP_ENTERSUB:
- fprintf(fp,"+ %ld %ld %ld %s\n",
- tms_utime, tms_stime, realtime, name );
- break;
- default:
- fprintf(fp,"Profiler unknown prof code %d\n", ptype);
- }
+ /* Only record the parent's info */
+ if (g_prof_pid == (int)getpid()) {
+ prof_dumpa(aTHX_ ptype, id);
+ PerlIO_flush(g_fp);
}
- fclose( fp );
+ else
+ PL_perldb = 0; /* Do not debug the kid. */
+ }
}
-#define for_real
-#ifdef for_real
+#ifdef PL_NEEDED
+# define defstash PL_defstash
+#endif
-XS(XS_DB_sub)
+/* Counts overhead of prof_mark and extra XS call. */
+static void
+test_time(pTHX_ clock_t *r, clock_t *u, clock_t *s)
{
- dXSARGS;
- dORIGMARK;
- SP -= items;
+ CV *cv = perl_get_cv("Devel::DProf::NONESUCH_noxs", FALSE);
+ int i, j, k = 0;
+ HV *oldstash = PL_curstash;
+ struct tms t1, t2;
+ clock_t realtime1 = 0, realtime2 = 0;
+ U32 ototal = g_total;
+ U32 ostack = g_SAVE_STACK;
+ U32 operldb = PL_perldb;
+
+ g_SAVE_STACK = 1000000;
+ realtime1 = Times(&t1);
+
+ while (k < 2) {
+ i = 0;
+ /* Disable debugging of perl_call_sv on second pass: */
+ PL_curstash = (k == 0 ? PL_defstash : PL_debstash);
+ PL_perldb = g_default_perldb;
+ while (++i <= 100) {
+ j = 0;
+ g_profstack_ix = 0; /* Do not let the stack grow */
+ while (++j <= 100) {
+/* prof_mark(aTHX_ OP_ENTERSUB); */
+
+ PUSHMARK(PL_stack_sp);
+ perl_call_sv((SV*)cv, G_SCALAR);
+ PL_stack_sp--;
+/* prof_mark(aTHX_ OP_LEAVESUB); */
+ }
+ }
+ PL_curstash = oldstash;
+ if (k == 0) { /* Put time with debugging */
+ realtime2 = Times(&t2);
+ *r = realtime2 - realtime1;
+ *u = t2.tms_utime - t1.tms_utime;
+ *s = t2.tms_stime - t1.tms_stime;
+ }
+ else { /* Subtract time without debug */
+ realtime1 = Times(&t1);
+ *r -= realtime1 - realtime2;
+ *u -= t1.tms_utime - t2.tms_utime;
+ *s -= t1.tms_stime - t2.tms_stime;
+ }
+ k++;
+ }
+ g_total = ototal;
+ g_SAVE_STACK = ostack;
+ PL_perldb = operldb;
+}
- DBG_SUB_NOTIFY( "XS DBsub(%s)\n", SvPV(Sub, na) );
+static void
+prof_recordheader(pTHX)
+{
+ clock_t r, u, s;
+
+ /* g_fp is opened in the BOOT section */
+ PerlIO_printf(g_fp, "#fOrTyTwO\n");
+ PerlIO_printf(g_fp, "$hz=%"IVdf";\n", (IV)DPROF_HZ);
+ PerlIO_printf(g_fp, "$XS_VERSION='DProf %s';\n", XS_VERSION);
+ PerlIO_printf(g_fp, "# All values are given in HZ\n");
+ test_time(aTHX_ &r, &u, &s);
+ PerlIO_printf(g_fp,
+ "$over_utime=%"IVdf"; $over_stime=%"IVdf"; $over_rtime=%"IVdf";\n",
+ /* The (IV) casts are one possibility:
+ * the Painfully Correct Way would be to
+ * have Clock_t_f. */
+ (IV)u, (IV)s, (IV)r);
+ PerlIO_printf(g_fp, "$over_tests=10000;\n");
+
+ g_TIMES_LOCATION = PerlIO_tell(g_fp);
+
+ /* Pad with whitespace. */
+ /* This should be enough even for very large numbers. */
+ PerlIO_printf(g_fp, "%*s\n", 240 , "");
+
+ PerlIO_printf(g_fp, "\n");
+ PerlIO_printf(g_fp, "PART2\n");
+
+ PerlIO_flush(g_fp);
+}
- sv_setiv( DBsingle, 0 ); /* disable DB single-stepping */
+static void
+prof_record(pTHX)
+{
+ /* g_fp is opened in the BOOT section */
+
+ /* Now that we know the runtimes, fill them in at the recorded
+ location -JH */
+
+ if (g_SAVE_STACK) {
+ prof_dump_until(aTHX_ g_profstack_ix);
+ }
+ PerlIO_seek(g_fp, g_TIMES_LOCATION, SEEK_SET);
+ /* Write into reserved 240 bytes: */
+ PerlIO_printf(g_fp,
+ "$rrun_utime=%"IVdf"; $rrun_stime=%"IVdf"; $rrun_rtime=%"IVdf";",
+ /* The (IV) casts are one possibility:
+ * the Painfully Correct Way would be to
+ * have Clock_t_f. */
+ (IV)(g_prof_end.tms_utime-g_prof_start.tms_utime-g_wprof_u),
+ (IV)(g_prof_end.tms_stime-g_prof_start.tms_stime-g_wprof_s),
+ (IV)(g_rprof_end-g_rprof_start-g_wprof_r));
+ PerlIO_printf(g_fp, "\n$total_marks=%"IVdf, (IV)g_total);
+
+ PerlIO_close(g_fp);
+}
+
+#define NONESUCH()
- prof_mark( OP_ENTERSUB );
- PUSHMARK( ORIGMARK );
+static void
+check_depth(pTHX_ void *foo)
+{
+ U32 need_depth = PTR2UV(foo);
+ if (need_depth != g_depth) {
+ if (need_depth > g_depth) {
+ warn("garbled call depth when profiling");
+ }
+ else {
+ IV marks = g_depth - need_depth;
+
+/* warn("Check_depth: got %d, expected %d\n", g_depth, need_depth); */
+ while (marks--) {
+ prof_mark(aTHX_ OP_DIE);
+ }
+ g_depth = need_depth;
+ }
+ }
+}
+
+#define for_real
+#ifdef for_real
- perl_call_sv( Sub, GIMME );
+XS(XS_DB_sub)
+{
+ dMARK;
+ dORIGMARK;
+ SV *Sub = GvSV(PL_DBsub); /* name of current sub */
+
+#ifdef PERL_IMPLICIT_CONTEXT
+ /* profile only the interpreter that loaded us */
+ if (g_THX != aTHX) {
+ PUSHMARK(ORIGMARK);
+ perl_call_sv(INT2PTR(SV*,SvIV(Sub)), GIMME | G_NODEBUG);
+ }
+ else
+#endif
+ {
+ HV *oldstash = PL_curstash;
+
+ DBG_SUB_NOTIFY("XS DBsub(%s)\n", SvPV_nolen(Sub));
+
+ SAVEDESTRUCTOR_X(check_depth, INT2PTR(void*,g_depth));
+ g_depth++;
+
+ prof_mark(aTHX_ OP_ENTERSUB);
+ PUSHMARK(ORIGMARK);
+ perl_call_sv(INT2PTR(SV*,SvIV(Sub)), GIMME | G_NODEBUG);
+ PL_curstash = oldstash;
+ prof_mark(aTHX_ OP_LEAVESUB);
+ g_depth--;
+ }
+ return;
+}
- prof_mark( OP_LEAVESUB );
- SPAGAIN;
- PUTBACK;
- return;
+XS(XS_DB_goto)
+{
+#ifdef PERL_IMPLICIT_CONTEXT
+ if (g_THX == aTHX)
+#endif
+ {
+ prof_mark(aTHX_ OP_GOTO);
+ return;
+ }
}
#endif /* for_real */
#ifdef testing
- MODULE = Devel::DProf PACKAGE = DB
-
- void
- sub(...)
- PPCODE:
+ MODULE = Devel::DProf PACKAGE = DB
- dORIGMARK;
- /* SP -= items; added by xsubpp */
- DBG_SUB_NOTIFY( "XS DBsub(%s)\n", SvPV(Sub, na) );
+ void
+ sub(...)
+ PPCODE:
+ {
+ dORIGMARK;
+ HV *oldstash = PL_curstash;
+ SV *Sub = GvSV(PL_DBsub); /* name of current sub */
+ /* SP -= items; added by xsubpp */
+ DBG_SUB_NOTIFY("XS DBsub(%s)\n", SvPV_nolen(Sub));
- sv_setiv( DBsingle, 0 ); /* disable DB single-stepping */
+ sv_setiv(PL_DBsingle, 0); /* disable DB single-stepping */
- prof_mark( OP_ENTERSUB );
- PUSHMARK( ORIGMARK );
+ prof_mark(aTHX_ OP_ENTERSUB);
+ PUSHMARK(ORIGMARK);
- perl_call_sv( Sub, GIMME );
+ PL_curstash = PL_debstash; /* To disable debugging of perl_call_sv */
+ perl_call_sv(Sub, GIMME);
+ PL_curstash = oldstash;
- prof_mark( OP_LEAVESUB );
- SPAGAIN;
- /* PUTBACK; added by xsubpp */
+ prof_mark(aTHX_ OP_LEAVESUB);
+ SPAGAIN;
+ /* PUTBACK; added by xsubpp */
+ }
#endif /* testing */
-
-MODULE = Devel::DProf PACKAGE = Devel::DProf
+MODULE = Devel::DProf PACKAGE = Devel::DProf
void
END()
- PPCODE:
- rprof_end = times(&prof_end);
- DBG_TIMER_NOTIFY("Profiler timer is off.\n");
- prof_record();
+PPCODE:
+ {
+ if (PL_DBsub) {
+ /* maybe the process forked--we want only
+ * the parent's profile.
+ */
+ if (
+#ifdef PERL_IMPLICIT_CONTEXT
+ g_THX == aTHX &&
+#endif
+ g_prof_pid == (int)getpid())
+ {
+ g_rprof_end = Times(&g_prof_end);
+ DBG_TIMER_NOTIFY("Profiler timer is off.\n");
+ prof_record(aTHX);
+ }
+ }
+ }
+
+void
+NONESUCH()
BOOT:
- newXS("DB::sub", XS_DB_sub, file);
- Sub = GvSV(DBsub); /* name of current sub */
- sv_setiv( DBsingle, 0 ); /* disable DB single-stepping */
- { /* obtain name of tmon.out file */
- SV *sv;
- sv = perl_get_sv( "DB::tmon", FALSE );
- Tmon = (char *)safemalloc( SvCUR(sv) * sizeof(char) );
- strcpy( Tmon, SvPVX(sv) );
- }
- New( 0, profstack, profstack_max, PROFANY );
- DBG_TIMER_NOTIFY("Profiler timer is on.\n");
- rprof_start = times(&prof_start);
+ {
+ g_TIMES_LOCATION = 42;
+ g_SAVE_STACK = 1<<14;
+ g_profstack_max = 128;
+#ifdef PERL_IMPLICIT_CONTEXT
+ g_THX = aTHX;
+#endif
+
+ /* Before we go anywhere make sure we were invoked
+ * properly, else we'll dump core.
+ */
+ if (!PL_DBsub)
+ croak("DProf: run perl with -d to use DProf.\n");
+
+ /* When we hook up the XS DB::sub we'll be redefining
+ * the DB::sub from the PM file. Turn off warnings
+ * while we do this.
+ */
+ {
+ I32 warn_tmp = PL_dowarn;
+ PL_dowarn = 0;
+ newXS("DB::sub", XS_DB_sub, file);
+ newXS("DB::goto", XS_DB_goto, file);
+ PL_dowarn = warn_tmp;
+ }
+
+ sv_setiv(PL_DBsingle, 0); /* disable DB single-stepping */
+
+ {
+ char *buffer = getenv("PERL_DPROF_BUFFER");
+
+ if (buffer) {
+ g_SAVE_STACK = atoi(buffer);
+ }
+
+ buffer = getenv("PERL_DPROF_TICKS");
+
+ if (buffer) {
+ g_dprof_ticks = atoi(buffer); /* Used under OS/2 only */
+ }
+ else {
+ g_dprof_ticks = HZ;
+ }
+
+ buffer = getenv("PERL_DPROF_OUT_FILE_NAME");
+ g_out_file_name = savepv(buffer ? buffer : "tmon.out");
+ }
+
+ if ((g_fp = PerlIO_open(g_out_file_name, "w")) == NULL)
+ croak("DProf: unable to write '%s', errno = %d\n",
+ g_out_file_name, errno);
+
+ g_default_perldb = PERLDBf_NONAME | PERLDBf_SUB | PERLDBf_GOTO;
+ g_cv_hash = newHV();
+ g_prof_pid = (int)getpid();
+
+ New(0, g_profstack, g_profstack_max, PROFANY);
+ prof_recordheader(aTHX);
+ DBG_TIMER_NOTIFY("Profiler timer is on.\n");
+ g_orealtime = g_rprof_start = Times(&g_prof_start);
+ g_otms_utime = g_prof_start.tms_utime;
+ g_otms_stime = g_prof_start.tms_stime;
+ PL_perldb = g_default_perldb;
+ }
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