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) 2000-2016 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 (at) acm.org> */ 26 27 #include <stdio.h> 29 #include <strings.h> 30 #include "bfd.h" 31 #include "gmon_out.h" 32 33 /* structure emitted by -a */ 34 struct bb 35 { 36 long zero_word; 37 const char *filename; 38 long *counts; 39 long ncounts; 40 struct bb *next; 41 const unsigned long *addresses; 42 }; 43 44 struct bb *__bb_head = (struct bb *) 0; 45 46 47 void 48 __bb_exit_func () 49 { 50 const int version = GMON_VERSION; 51 struct gmon_hdr ghdr; 52 struct bb *ptr; 53 FILE *fp; 54 /* GEN_GMON_CNT_FILE should be defined on systems with mcleanup() 55 functions that do not write basic-block to gmon.out. In such 56 cases profiling with "-pg -a" would result in a gmon.out file 57 without basic-block info (because the file written here would be 58 overwritten. Thus, a separate file is generated instead. The 59 two files can easily be combined by specifying them on gprof's 60 command line (and possibly generating a gmon.sum file with "gprof 61 -s"). */ 62 #ifndef GEN_GMON_CNT_FILE 63 # define OUT_NAME "gmon.out" 64 #else 65 # define OUT_NAME "gmon.cnt" 66 #endif 67 fp = fopen (OUT_NAME, "wb"); 68 if (!fp) 69 { 70 perror (OUT_NAME); 71 return; 72 } 73 memcpy (&ghdr.cookie[0], GMON_MAGIC, 4); 74 memcpy (&ghdr.version, &version, sizeof (version)); 75 fwrite (&ghdr, sizeof (ghdr), 1, fp); 76 77 for (ptr = __bb_head; ptr != 0; ptr = ptr->next) 78 { 79 u_int ncounts = ptr->ncounts; 80 u_char tag; 81 u_int i; 82 83 tag = GMON_TAG_BB_COUNT; 84 fwrite (&tag, sizeof (tag), 1, fp); 85 fwrite (&ncounts, sizeof (ncounts), 1, fp); 86 87 for (i = 0; i < ncounts; ++i) 88 { 89 fwrite (&ptr->addresses[i], sizeof (ptr->addresses[0]), 1, fp); 90 fwrite (&ptr->counts[i], sizeof (ptr->counts[0]), 1, fp); 91 } 92 } 93 fclose (fp); 94 } 95
