glibc/gmon/bb_exit_func.c
1996-03-25 06:26:06 +00:00

79 lines
2.1 KiB
C

/* Copyright (C) 1996 Free Software Foundation, Inc.
Contributed by David Mosberger (davidm@cs.arizona.edu).
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
/* __bb_exit_func() dumps all the basic-block statistics linked into
the bb_head chain to .d files. */
#include <sys/gmon_out.h>
#include <sys/types.h>
#include <ansidecl.h>
#include <stdio.h>
#include <strings.h>
/* structure emitted by -a */
struct bb {
long zero_word;
const char *filename;
long *counts;
long ncounts;
struct bb *next;
const unsigned long *addresses;
};
extern struct bb *__bb_head; /* from gmon.c */
#define OUT_NAME "gmon.out"
void
DEFUN_VOID(__bb_exit_func)
{
const int version = GMON_VERSION;
struct gmon_hdr ghdr;
struct bb *ptr;
FILE *fp;
fp = fopen(OUT_NAME, "wb");
if (!fp)
{
perror(OUT_NAME);
return;
}
bcopy(GMON_MAGIC, &ghdr.cookie[0], 4);
bcopy(&version, &ghdr.version, sizeof(version));
fwrite(&ghdr, sizeof(ghdr), 1, fp);
for (ptr = __bb_head; ptr != 0; ptr = ptr->next) {
u_int ncounts = ptr->ncounts;
u_char tag;
u_int i;
tag = GMON_TAG_BB_COUNT;
fwrite(&tag, sizeof(tag), 1, fp);
fwrite(&ncounts, sizeof(ncounts), 1, fp);
for (i = 0; i < ncounts; ++i) {
fwrite(&ptr->addresses[i], sizeof(ptr->addresses[0]), 1, fp);
fwrite(&ptr->counts[i], sizeof(ptr->counts[0]), 1, fp);
}
}
fclose (fp);
}