/* bb_exit_func.c - dumps all the basic-block statistics linked into the bb_head chain to .d files. Copyright (C) 2000-2016 Free Software Foundation, Inc. This file is part of GNU Binutils. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. This code was contributed by: David Mosberger-Tang <David.Mosberger@acm.org> */ #include <stdio.h> #include <strings.h> #include "bfd.h" #include "gmon_out.h" /* structure emitted by -a */ struct bb { long zero_word; const char *filename; long *counts; long ncounts; struct bb *next; const unsigned long *addresses; }; struct bb *__bb_head = (struct bb *) 0; void __bb_exit_func () { const int version = GMON_VERSION; struct gmon_hdr ghdr; struct bb *ptr; FILE *fp; /* GEN_GMON_CNT_FILE should be defined on systems with mcleanup() functions that do not write basic-block to gmon.out. In such cases profiling with "-pg -a" would result in a gmon.out file without basic-block info (because the file written here would be overwritten. Thus, a separate file is generated instead. The two files can easily be combined by specifying them on gprof's command line (and possibly generating a gmon.sum file with "gprof -s"). */ #ifndef GEN_GMON_CNT_FILE # define OUT_NAME "gmon.out" #else # define OUT_NAME "gmon.cnt" #endif fp = fopen (OUT_NAME, "wb"); if (!fp) { perror (OUT_NAME); return; } memcpy (&ghdr.cookie[0], GMON_MAGIC, 4); memcpy (&ghdr.version, &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); }