| 1 | /* bb_exit_func.c - dumps all the basic-block statistics linked into |
| 2 | the bb_head chain to .d files. |
| 3 | |
| 4 | Copyright (C) 2000-2020 Free Software Foundation, Inc. |
| 5 | |
| 6 | This file is part of GNU Binutils. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 3 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program; if not, write to the Free Software |
| 20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA |
| 21 | 02110-1301, USA. |
| 22 | |
| 23 | This code was contributed by: |
| 24 | |
| 25 | David Mosberger-Tang <David.Mosberger@acm.org> */ |
| 26 | \f |
| 27 | #include <stdio.h> |
| 28 | #include <strings.h> |
| 29 | #include "bfd.h" |
| 30 | #include "gmon_out.h" |
| 31 | |
| 32 | /* structure emitted by -a */ |
| 33 | struct bb |
| 34 | { |
| 35 | long zero_word; |
| 36 | const char *filename; |
| 37 | long *counts; |
| 38 | long ncounts; |
| 39 | struct bb *next; |
| 40 | const unsigned long *addresses; |
| 41 | }; |
| 42 | |
| 43 | struct bb *__bb_head = (struct bb *) 0; |
| 44 | |
| 45 | |
| 46 | void |
| 47 | __bb_exit_func () |
| 48 | { |
| 49 | const int version = GMON_VERSION; |
| 50 | struct gmon_hdr ghdr; |
| 51 | struct bb *ptr; |
| 52 | FILE *fp; |
| 53 | /* GEN_GMON_CNT_FILE should be defined on systems with mcleanup() |
| 54 | functions that do not write basic-block to gmon.out. In such |
| 55 | cases profiling with "-pg -a" would result in a gmon.out file |
| 56 | without basic-block info (because the file written here would be |
| 57 | overwritten. Thus, a separate file is generated instead. The |
| 58 | two files can easily be combined by specifying them on gprof's |
| 59 | command line (and possibly generating a gmon.sum file with "gprof |
| 60 | -s"). */ |
| 61 | #ifndef GEN_GMON_CNT_FILE |
| 62 | # define OUT_NAME "gmon.out" |
| 63 | #else |
| 64 | # define OUT_NAME "gmon.cnt" |
| 65 | #endif |
| 66 | fp = fopen (OUT_NAME, "wb"); |
| 67 | if (!fp) |
| 68 | { |
| 69 | perror (OUT_NAME); |
| 70 | return; |
| 71 | } |
| 72 | memcpy (&ghdr.cookie[0], GMON_MAGIC, 4); |
| 73 | memcpy (&ghdr.version, &version, sizeof (version)); |
| 74 | fwrite (&ghdr, sizeof (ghdr), 1, fp); |
| 75 | |
| 76 | for (ptr = __bb_head; ptr != 0; ptr = ptr->next) |
| 77 | { |
| 78 | u_int ncounts = ptr->ncounts; |
| 79 | u_char tag; |
| 80 | u_int i; |
| 81 | |
| 82 | tag = GMON_TAG_BB_COUNT; |
| 83 | fwrite (&tag, sizeof (tag), 1, fp); |
| 84 | fwrite (&ncounts, sizeof (ncounts), 1, fp); |
| 85 | |
| 86 | for (i = 0; i < ncounts; ++i) |
| 87 | { |
| 88 | fwrite (&ptr->addresses[i], sizeof (ptr->addresses[0]), 1, fp); |
| 89 | fwrite (&ptr->counts[i], sizeof (ptr->counts[0]), 1, fp); |
| 90 | } |
| 91 | } |
| 92 | fclose (fp); |
| 93 | } |