diff options
Diffstat (limited to 'libgloss/mep/mep-bb.c')
| -rw-r--r-- | libgloss/mep/mep-bb.c | 1071 |
1 files changed, 0 insertions, 1071 deletions
diff --git a/libgloss/mep/mep-bb.c b/libgloss/mep/mep-bb.c deleted file mode 100644 index 191da1696..000000000 --- a/libgloss/mep/mep-bb.c +++ /dev/null @@ -1,1071 +0,0 @@ -/* - * Copyright (c) 2000-2001 Red Hat, Inc. All rights reserved. - * - * This copyrighted material is made available to anyone wishing to use, modify, - * copy, or redistribute it subject to the terms and conditions of the BSD - * License. This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY expressed or implied, including the implied - * warranties of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. A copy - * of this license is available at http://www.opensource.org/licenses. Any - * Red Hat trademarks that are incorporated in the source code or documentation - * are not subject to the BSD License and may only be used or replicated with - * the express permission of Red Hat, Inc. - */ - -/* Structure emitted by -a */ -struct bb -{ - long zero_word; - const char *filename; - long *counts; - long ncounts; - struct bb *next; - const unsigned long *addresses; - - /* Older GCC's did not emit these fields. */ - long nwords; - const char **functions; - const long *line_nums; - const char **filenames; - char *flags; -}; - -/* Simple minded basic block profiling output dumper for - systems that don't provide tcov support. At present, - it requires atexit and stdio. */ - -#undef NULL /* Avoid errors if stdio.h and our stddef.h mismatch. */ -#include <stdio.h> -#include <time.h> -char *ctime (const time_t *); - -/*#include "gbl-ctors.h"*/ -#include "gcov-io.h" -#include <string.h> - -static struct bb *bb_head; - -static int num_digits (long value, int base) __attribute__ ((const)); - -/* Return the number of digits needed to print a value */ -/* __inline__ */ static int num_digits (long value, int base) -{ - int minus = (value < 0 && base != 16); - unsigned long v = (minus) ? -value : value; - int ret = minus; - - do - { - v /= base; - ret++; - } - while (v); - - return ret; -} - -void -__bb_exit_func (void) -{ - FILE *da_file, *file; - long time_value; - int i; - - if (bb_head == 0) - return; - - i = strlen (bb_head->filename) - 3; - - if (!strcmp (bb_head->filename+i, ".da")) - { - /* Must be -fprofile-arcs not -a. - Dump data in a form that gcov expects. */ - - struct bb *ptr; - - for (ptr = bb_head; ptr != (struct bb *) 0; ptr = ptr->next) - { - int firstchar; - - /* Make sure the output file exists - - but don't clobber exiting data. */ - if ((da_file = fopen (ptr->filename, "a")) != 0) - fclose (da_file); - - /* Need to re-open in order to be able to write from the start. */ - da_file = fopen (ptr->filename, "r+b"); - /* Some old systems might not allow the 'b' mode modifier. - Therefore, try to open without it. This can lead to a race - condition so that when you delete and re-create the file, the - file might be opened in text mode, but then, you shouldn't - delete the file in the first place. */ - if (da_file == 0) - da_file = fopen (ptr->filename, "r+"); - if (da_file == 0) - { - fprintf (stderr, "arc profiling: Can't open output file %s.\n", - ptr->filename); - continue; - } - - /* After a fork, another process might try to read and/or write - the same file simultanously. So if we can, lock the file to - avoid race conditions. */ - - /* If the file is not empty, and the number of counts in it is the - same, then merge them in. */ - firstchar = fgetc (da_file); - if (firstchar == EOF) - { - if (ferror (da_file)) - { - fprintf (stderr, "arc profiling: Can't read output file "); - perror (ptr->filename); - } - } - else - { - long n_counts = 0; - - if (ungetc (firstchar, da_file) == EOF) - rewind (da_file); - if (__read_long (&n_counts, da_file, 8) != 0) - { - fprintf (stderr, "arc profiling: Can't read output file %s.\n", - ptr->filename); - continue; - } - - if (n_counts == ptr->ncounts) - { - int i; - - for (i = 0; i < n_counts; i++) - { - long v = 0; - - if (__read_long (&v, da_file, 8) != 0) - { - fprintf (stderr, "arc profiling: Can't read output file %s.\n", - ptr->filename); - break; - } - ptr->counts[i] += v; - } - } - - } - - rewind (da_file); - - /* ??? Should first write a header to the file. Preferably, a 4 byte - magic number, 4 bytes containing the time the program was - compiled, 4 bytes containing the last modification time of the - source file, and 4 bytes indicating the compiler options used. - - That way we can easily verify that the proper source/executable/ - data file combination is being used from gcov. */ - - if (__write_long (ptr->ncounts, da_file, 8) != 0) - { - - fprintf (stderr, "arc profiling: Error writing output file %s.\n", - ptr->filename); - } - else - { - int j; - long *count_ptr = ptr->counts; - int ret = 0; - for (j = ptr->ncounts; j > 0; j--) - { - if (__write_long (*count_ptr, da_file, 8) != 0) - { - ret=1; - break; - } - count_ptr++; - } - if (ret) - fprintf (stderr, "arc profiling: Error writing output file %s.\n", - ptr->filename); - } - - if (fclose (da_file) == EOF) - fprintf (stderr, "arc profiling: Error closing output file %s.\n", - ptr->filename); - } - - return; - } - - /* Must be basic block profiling. Emit a human readable output file. */ - - file = fopen ("bb.out", "a"); - - if (!file) - perror ("bb.out"); - - else - { - struct bb *ptr; - - /* This is somewhat type incorrect, but it avoids worrying about - exactly where time.h is included from. It should be ok unless - a void * differs from other pointer formats, or if sizeof (long) - is < sizeof (time_t). It would be nice if we could assume the - use of rationale standards here. */ - - time ((void *) &time_value); - fprintf (file, "Basic block profiling finished on %s\n", ctime ((void *) &time_value)); - - /* We check the length field explicitly in order to allow compatibility - with older GCC's which did not provide it. */ - - for (ptr = bb_head; ptr != (struct bb *) 0; ptr = ptr->next) - { - int i; - int func_p = (ptr->nwords >= (long) sizeof (struct bb) - && ptr->nwords <= 1000 - && ptr->functions); - int line_p = (func_p && ptr->line_nums); - int file_p = (func_p && ptr->filenames); - int addr_p = (ptr->addresses != 0); - long ncounts = ptr->ncounts; - long cnt_max = 0; - long line_max = 0; - long addr_max = 0; - int file_len = 0; - int func_len = 0; - int blk_len = num_digits (ncounts, 10); - int cnt_len; - int line_len; - int addr_len; - - fprintf (file, "File %s, %ld basic blocks \n\n", - ptr->filename, ncounts); - - /* Get max values for each field. */ - for (i = 0; i < ncounts; i++) - { - const char *p; - int len; - - if (cnt_max < ptr->counts[i]) - cnt_max = ptr->counts[i]; - - if (addr_p && (unsigned long) addr_max < ptr->addresses[i]) - addr_max = ptr->addresses[i]; - - if (line_p && line_max < ptr->line_nums[i]) - line_max = ptr->line_nums[i]; - - if (func_p) - { - p = (ptr->functions[i]) ? (ptr->functions[i]) : "<none>"; - len = strlen (p); - if (func_len < len) - func_len = len; - } - - if (file_p) - { - p = (ptr->filenames[i]) ? (ptr->filenames[i]) : "<none>"; - len = strlen (p); - if (file_len < len) - file_len = len; - } - } - - addr_len = num_digits (addr_max, 16); - cnt_len = num_digits (cnt_max, 10); - line_len = num_digits (line_max, 10); - - /* Now print out the basic block information. */ - for (i = 0; i < ncounts; i++) - { - fprintf (file, - " Block #%*d: executed %*ld time(s)", - blk_len, i+1, - cnt_len, ptr->counts[i]); - - if (addr_p) - fprintf (file, " address= 0x%.*lx", addr_len, - ptr->addresses[i]); - - if (func_p) - fprintf (file, " function= %-*s", func_len, - (ptr->functions[i]) ? ptr->functions[i] : "<none>"); - - if (line_p) - fprintf (file, " line= %*ld", line_len, ptr->line_nums[i]); - - if (file_p) - fprintf (file, " file= %s", - (ptr->filenames[i]) ? ptr->filenames[i] : "<none>"); - - fprintf (file, "\n"); - } - - fprintf (file, "\n"); - fflush (file); - } - - fprintf (file, "\n\n"); - fclose (file); - } -} - -void -__bb_init_func (struct bb *blocks) -{ - /* User is supposed to check whether the first word is non-0, - but just in case.... */ - - if (blocks->zero_word) - return; - - /* Initialize destructor. */ - if (!bb_head) - atexit (__bb_exit_func); - - /* Set up linked list. */ - blocks->zero_word = 1; - blocks->next = bb_head; - bb_head = blocks; -} - -/* Called before fork or exec - write out profile information gathered so - far and reset it to zero. This avoids duplication or loss of the - profile information gathered so far. */ -void -__bb_fork_func (void) -{ - struct bb *ptr; - - __bb_exit_func (); - for (ptr = bb_head; ptr != (struct bb *) 0; ptr = ptr->next) - { - long i; - for (i = ptr->ncounts - 1; i >= 0; i--) - ptr->counts[i] = 0; - } -} - -#ifndef MACHINE_STATE_SAVE -#define MACHINE_STATE_SAVE(ID) -#endif -#ifndef MACHINE_STATE_RESTORE -#define MACHINE_STATE_RESTORE(ID) -#endif - -/* Number of buckets in hashtable of basic block addresses. */ - -#define BB_BUCKETS 311 - -/* Maximum length of string in file bb.in. */ - -#define BBINBUFSIZE 500 - -struct bb_edge -{ - struct bb_edge *next; - unsigned long src_addr; - unsigned long dst_addr; - unsigned long count; -}; - -enum bb_func_mode -{ - TRACE_KEEP = 0, TRACE_ON = 1, TRACE_OFF = 2 -}; - -struct bb_func -{ - struct bb_func *next; - char *funcname; - char *filename; - enum bb_func_mode mode; -}; - -/* This is the connection to the outside world. - The BLOCK_PROFILER macro must set __bb.blocks - and __bb.blockno. */ - -struct { - unsigned long blockno; - struct bb *blocks; -} __bb; - -/* Vars to store addrs of source and destination basic blocks - of a jump. */ - -static unsigned long bb_src = 0; -static unsigned long bb_dst = 0; - -static FILE *bb_tracefile = (FILE *) 0; -static struct bb_edge **bb_hashbuckets = (struct bb_edge **) 0; -static struct bb_func *bb_func_head = (struct bb_func *) 0; -static unsigned long bb_callcount = 0; -static int bb_mode = 0; - -static unsigned long *bb_stack = (unsigned long *) 0; -static size_t bb_stacksize = 0; - -static int reported = 0; - -/* Trace modes: -Always : Print execution frequencies of basic blocks - to file bb.out. -bb_mode & 1 != 0 : Dump trace of basic blocks to file bbtrace[.gz] -bb_mode & 2 != 0 : Print jump frequencies to file bb.out. -bb_mode & 4 != 0 : Cut call instructions from basic block flow. -bb_mode & 8 != 0 : Insert return instructions in basic block flow. -*/ - -#ifdef HAVE_POPEN - -/*#include <sys/types.h>*/ -#include <sys/stat.h> -/*#include <malloc.h>*/ - -/* Commands executed by gopen. */ - -#define GOPENDECOMPRESS "gzip -cd " -#define GOPENCOMPRESS "gzip -c >" - -/* Like fopen but pipes through gzip. mode may only be "r" or "w". - If it does not compile, simply replace gopen by fopen and delete - '.gz' from any first parameter to gopen. */ - -static FILE * -gopen (char *fn, char *mode) -{ - int use_gzip; - char *p; - - if (mode[1]) - return (FILE *) 0; - - if (mode[0] != 'r' && mode[0] != 'w') - return (FILE *) 0; - - p = fn + strlen (fn)-1; - use_gzip = ((p[-1] == '.' && (p[0] == 'Z' || p[0] == 'z')) - || (p[-2] == '.' && p[-1] == 'g' && p[0] == 'z')); - - if (use_gzip) - { - if (mode[0]=='r') - { - FILE *f; - char *s = (char *) malloc (sizeof (char) * strlen (fn) - + sizeof (GOPENDECOMPRESS)); - strcpy (s, GOPENDECOMPRESS); - strcpy (s + (sizeof (GOPENDECOMPRESS)-1), fn); - f = popen (s, mode); - free (s); - return f; - } - - else - { - FILE *f; - char *s = (char *) malloc (sizeof (char) * strlen (fn) - + sizeof (GOPENCOMPRESS)); - strcpy (s, GOPENCOMPRESS); - strcpy (s + (sizeof (GOPENCOMPRESS)-1), fn); - if (!(f = popen (s, mode))) - f = fopen (s, mode); - free (s); - return f; - } - } - - else - return fopen (fn, mode); -} - -static int -gclose (FILE *f) -{ - struct stat buf; - - if (f != 0) - { - if (!fstat (fileno (f), &buf) && S_ISFIFO (buf.st_mode)) - return pclose (f); - - return fclose (f); - } - return 0; -} - -#endif /* HAVE_POPEN */ - -/* Called once per program. */ - -static void -__bb_exit_trace_func (void) -{ - FILE *file = fopen ("bb.out", "a"); - struct bb_func *f; - struct bb *b; - - if (!file) - perror ("bb.out"); - - if (bb_mode & 1) - { - if (!bb_tracefile) - perror ("bbtrace"); - else -#ifdef HAVE_POPEN - gclose (bb_tracefile); -#else - fclose (bb_tracefile); -#endif /* HAVE_POPEN */ - } - - /* Check functions in `bb.in'. */ - - if (file) - { - long time_value; - const struct bb_func *p; - int printed_something = 0; - struct bb *ptr; - long blk; - - /* This is somewhat type incorrect. */ - time ((void *) &time_value); - - for (p = bb_func_head; p != (struct bb_func *) 0; p = p->next) - { - for (ptr = bb_head; ptr != (struct bb *) 0; ptr = ptr->next) - { - if (!ptr->filename || (p->filename != (char *) 0 && strcmp (p->filename, ptr->filename))) - continue; - for (blk = 0; blk < ptr->ncounts; blk++) - { - if (!strcmp (p->funcname, ptr->functions[blk])) - goto found; - } - } - - if (!printed_something) - { - fprintf (file, "Functions in `bb.in' not executed during basic block profiling on %s\n", ctime ((void *) &time_value)); - printed_something = 1; - } - - fprintf (file, "\tFunction %s", p->funcname); - if (p->filename) - fprintf (file, " of file %s", p->filename); - fprintf (file, "\n" ); - -found: ; - } - - if (printed_something) - fprintf (file, "\n"); - - } - - if (bb_mode & 2) - { - if (!bb_hashbuckets) - { - if (!reported) - { - fprintf (stderr, "Profiler: out of memory\n"); - reported = 1; - } - return; - } - - else if (file) - { - long time_value; - int i; - unsigned long addr_max = 0; - unsigned long cnt_max = 0; - int cnt_len; - int addr_len; - - /* This is somewhat type incorrect, but it avoids worrying about - exactly where time.h is included from. It should be ok unless - a void * differs from other pointer formats, or if sizeof (long) - is < sizeof (time_t). It would be nice if we could assume the - use of rationale standards here. */ - - time ((void *) &time_value); - fprintf (file, "Basic block jump tracing"); - - switch (bb_mode & 12) - { - case 0: - fprintf (file, " (with call)"); - break; - - case 4: - /* Print nothing. */ - break; - - case 8: - fprintf (file, " (with call & ret)"); - break; - - case 12: - fprintf (file, " (with ret)"); - break; - } - - fprintf (file, " finished on %s\n", ctime ((void *) &time_value)); - - for (i = 0; i < BB_BUCKETS; i++) - { - struct bb_edge *bucket = bb_hashbuckets[i]; - for ( ; bucket; bucket = bucket->next ) - { - if (addr_max < bucket->src_addr) - addr_max = bucket->src_addr; - if (addr_max < bucket->dst_addr) - addr_max = bucket->dst_addr; - if (cnt_max < bucket->count) - cnt_max = bucket->count; - } - } - addr_len = num_digits (addr_max, 16); - cnt_len = num_digits (cnt_max, 10); - - for ( i = 0; i < BB_BUCKETS; i++) - { - struct bb_edge *bucket = bb_hashbuckets[i]; - for ( ; bucket; bucket = bucket->next ) - { - fprintf (file, - "Jump from block 0x%.*lx to block 0x%.*lx executed %*lu time(s)\n", - addr_len, bucket->src_addr, - addr_len, bucket->dst_addr, - cnt_len, bucket->count); - } - } - - fprintf (file, "\n"); - - } - } - - if (file) - fclose (file); - - /* Free allocated memory. */ - - f = bb_func_head; - while (f) - { - struct bb_func *old = f; - - f = f->next; - if (old->funcname) free (old->funcname); - if (old->filename) free (old->filename); - free (old); - } - - if (bb_stack) - free (bb_stack); - - if (bb_hashbuckets) - { - int i; - - for (i = 0; i < BB_BUCKETS; i++) - { - struct bb_edge *old, *bucket = bb_hashbuckets[i]; - - while (bucket) - { - old = bucket; - bucket = bucket->next; - free (old); - } - } - free (bb_hashbuckets); - } - - for (b = bb_head; b; b = b->next) - if (b->flags) free (b->flags); -} - -/* Called once per program. */ - -static void -__bb_init_prg (void) -{ - FILE *file; - char buf[BBINBUFSIZE]; - const char *p; - const char *pos; - enum bb_func_mode m; - int i; - - /* Initialize destructor. */ - atexit (__bb_exit_func); - - if (!(file = fopen ("bb.in", "r"))) - return; - - while(fgets (buf, BBINBUFSIZE, file) != 0) - { - i = strlen (buf); - if (buf[i-1] == '\n') - buf[--i] = '\0'; - - p = buf; - if (*p == '-') - { - m = TRACE_OFF; - p++; - } - else - { - m = TRACE_ON; - } - if (!strcmp (p, "__bb_trace__")) - bb_mode |= 1; - else if (!strcmp (p, "__bb_jumps__")) - bb_mode |= 2; - else if (!strcmp (p, "__bb_hidecall__")) - bb_mode |= 4; - else if (!strcmp (p, "__bb_showret__")) - bb_mode |= 8; - else - { - struct bb_func *f = (struct bb_func *) malloc (sizeof (struct bb_func)); - if (f) - { - unsigned long l; - f->next = bb_func_head; - if ((pos = strchr (p, ':'))) - { - if (!(f->funcname = (char *) malloc (strlen (pos+1)+1))) - continue; - strcpy (f->funcname, pos+1); - l = pos-p; - if ((f->filename = (char *) malloc (l+1))) - { - strncpy (f->filename, p, l); - f->filename[l] = '\0'; - } - else - f->filename = (char *) 0; - } - else - { - if (!(f->funcname = (char *) malloc (strlen (p)+1))) - continue; - strcpy (f->funcname, p); - f->filename = (char *) 0; - } - f->mode = m; - bb_func_head = f; - } - } - } - fclose (file); - -#ifdef HAVE_POPEN - - if (bb_mode & 1) - bb_tracefile = gopen ("bbtrace.gz", "w"); - -#else - - if (bb_mode & 1) - bb_tracefile = fopen ("bbtrace", "w"); - -#endif /* HAVE_POPEN */ - - if (bb_mode & 2) - { - bb_hashbuckets = (struct bb_edge **) - malloc (BB_BUCKETS * sizeof (struct bb_edge *)); - if (bb_hashbuckets) - /* Use a loop here rather than calling bzero to avoid having to - conditionalize its existance. */ - for (i = 0; i < BB_BUCKETS; i++) - bb_hashbuckets[i] = 0; - } - - if (bb_mode & 12) - { - bb_stacksize = 10; - bb_stack = (unsigned long *) malloc (bb_stacksize * sizeof (*bb_stack)); - } - - /* Initialize destructor. */ - atexit (__bb_exit_trace_func); -} - -/* Called upon entering a basic block. */ - -void -__bb_trace_func (void) -{ - struct bb_edge *bucket; - - MACHINE_STATE_SAVE("1") - - if (!bb_callcount || (__bb.blocks->flags && (__bb.blocks->flags[__bb.blockno] & TRACE_OFF))) - goto skip; - - bb_dst = __bb.blocks->addresses[__bb.blockno]; - __bb.blocks->counts[__bb.blockno]++; - - if (bb_tracefile) - { - fwrite (&bb_dst, sizeof (unsigned long), 1, bb_tracefile); - } - - if (bb_hashbuckets) - { - struct bb_edge **startbucket, **oldnext; - - oldnext = startbucket - = & bb_hashbuckets[ (((int) bb_src*8) ^ (int) bb_dst) % BB_BUCKETS ]; - bucket = *startbucket; - - for (bucket = *startbucket; bucket; - oldnext = &(bucket->next), bucket = *oldnext) - { - if (bucket->src_addr == bb_src - && bucket->dst_addr == bb_dst) - { - bucket->count++; - *oldnext = bucket->next; - bucket->next = *startbucket; - *startbucket = bucket; - goto ret; - } - } - - bucket = (struct bb_edge *) malloc (sizeof (struct bb_edge)); - - if (!bucket) - { - if (!reported) - { - fprintf (stderr, "Profiler: out of memory\n"); - reported = 1; - } - } - - else - { - bucket->src_addr = bb_src; - bucket->dst_addr = bb_dst; - bucket->next = *startbucket; - *startbucket = bucket; - bucket->count = 1; - } - } - -ret: - bb_src = bb_dst; - -skip: - ; - - MACHINE_STATE_RESTORE("1") - -} - -/* Called when returning from a function and `__bb_showret__' is set. */ - -static void -__bb_trace_func_ret (void) -{ - struct bb_edge *bucket; - - if (!bb_callcount || (__bb.blocks->flags && (__bb.blocks->flags[__bb.blockno] & TRACE_OFF))) - goto skip; - - if (bb_hashbuckets) - { - struct bb_edge **startbucket, **oldnext; - - oldnext = startbucket - = & bb_hashbuckets[ (((int) bb_dst * 8) ^ (int) bb_src) % BB_BUCKETS ]; - bucket = *startbucket; - - for (bucket = *startbucket; bucket; - oldnext = &(bucket->next), bucket = *oldnext) - { - if (bucket->src_addr == bb_dst - && bucket->dst_addr == bb_src) - { - bucket->count++; - *oldnext = bucket->next; - bucket->next = *startbucket; - *startbucket = bucket; - goto ret; - } - } - - bucket = (struct bb_edge *) malloc (sizeof (struct bb_edge)); - - if (!bucket) - { - if (!reported) - { - fprintf (stderr, "Profiler: out of memory\n"); - reported = 1; - } - } - - else - { - bucket->src_addr = bb_dst; - bucket->dst_addr = bb_src; - bucket->next = *startbucket; - *startbucket = bucket; - bucket->count = 1; - } - } - -ret: - bb_dst = bb_src; - -skip: - ; - -} - -/* Called upon entering the first function of a file. */ - -static void -__bb_init_file (struct bb *blocks) -{ - - const struct bb_func *p; - long blk, ncounts = blocks->ncounts; - const char **functions = blocks->functions; - - /* Set up linked list. */ - blocks->zero_word = 1; - blocks->next = bb_head; - bb_head = blocks; - - blocks->flags = 0; - if (!bb_func_head - || !(blocks->flags = (char *) malloc (sizeof (char) * blocks->ncounts))) - return; - - for (blk = 0; blk < ncounts; blk++) - blocks->flags[blk] = 0; - - for (blk = 0; blk < ncounts; blk++) - { - for (p = bb_func_head; p; p = p->next) - { - if (!strcmp (p->funcname, functions[blk]) - && (!p->filename || !strcmp (p->filename, blocks->filename))) - { - blocks->flags[blk] |= p->mode; - } - } - } - -} - -/* Called when exiting from a function. */ - -void -__bb_trace_ret (void) -{ - - MACHINE_STATE_SAVE("2") - - if (bb_callcount) - { - if ((bb_mode & 12) && bb_stacksize > bb_callcount) - { - bb_src = bb_stack[bb_callcount]; - if (bb_mode & 8) - __bb_trace_func_ret (); - } - - bb_callcount -= 1; - } - - MACHINE_STATE_RESTORE("2") - -} - -/* Called when entering a function. */ - -void -__bb_init_trace_func (struct bb *blocks, unsigned long blockno) -{ - static int trace_init = 0; - - MACHINE_STATE_SAVE("3") - - if (!blocks->zero_word) - { - if (!trace_init) - { - trace_init = 1; - __bb_init_prg (); - } - __bb_init_file (blocks); - } - - if (bb_callcount) - { - - bb_callcount += 1; - - if (bb_mode & 12) - { - if (bb_callcount >= bb_stacksize) - { - size_t newsize = bb_callcount + 100; - - bb_stack = (unsigned long *) realloc (bb_stack, newsize); - if (! bb_stack) - { - if (!reported) - { - fprintf (stderr, "Profiler: out of memory\n"); - reported = 1; - } - bb_stacksize = 0; - goto stack_overflow; - } - bb_stacksize = newsize; - } - bb_stack[bb_callcount] = bb_src; - - if (bb_mode & 4) - bb_src = 0; - - } - -stack_overflow:; - - } - - else if (blocks->flags && (blocks->flags[blockno] & TRACE_ON)) - { - bb_callcount = 1; - bb_src = 0; - - if (bb_stack) - bb_stack[bb_callcount] = bb_src; - } - - MACHINE_STATE_RESTORE("3") -} - |