| 1 | /* |
| 2 | * Copyright (c) 1994 David Mosberger-Tang. |
| 3 | * |
| 4 | * This is free software; you can redistribute it and/or modify it |
| 5 | * under the terms of the GNU Library General Public License as |
| 6 | * published by the Free Software Foundation; either version 2, or (at |
| 7 | * your option) any later version. |
| 8 | * |
| 9 | * __bb_exit_func() dumps all the basic-block statistics linked into |
| 10 | * the bb_head chain to .d files. |
| 11 | */ |
| 12 | #include <stdio.h> |
| 13 | #include <strings.h> |
| 14 | #include "bfd.h" |
| 15 | #include "gmon_out.h" |
| 16 | |
| 17 | /* structure emitted by -a */ |
| 18 | struct bb { |
| 19 | long zero_word; |
| 20 | const char *filename; |
| 21 | long *counts; |
| 22 | long ncounts; |
| 23 | struct bb *next; |
| 24 | const unsigned long *addresses; |
| 25 | }; |
| 26 | |
| 27 | struct bb *__bb_head = (struct bb *)0; |
| 28 | |
| 29 | |
| 30 | void |
| 31 | __bb_exit_func (void) |
| 32 | { |
| 33 | const int version = GMON_VERSION; |
| 34 | struct gmon_hdr ghdr; |
| 35 | struct bb *ptr; |
| 36 | FILE *fp; |
| 37 | /* |
| 38 | * GEN_GMON_CNT_FILE should be defined on systems with mcleanup() |
| 39 | * functions that do not write basic-block to gmon.out. In such |
| 40 | * cases profiling with "-pg -a" would result in a gmon.out file |
| 41 | * without basic-block info (because the file written here would |
| 42 | * be overwritten. Thus, a separate file is generated instead. |
| 43 | * The two files can easily be combined by specifying them |
| 44 | * on gprof's command line (and possibly generating a gmon.sum |
| 45 | * file with "gprof -s"). |
| 46 | */ |
| 47 | #ifndef GEN_GMON_CNT_FILE |
| 48 | # define OUT_NAME "gmon.out" |
| 49 | #else |
| 50 | # define OUT_NAME "gmon.cnt" |
| 51 | #endif |
| 52 | fp = fopen(OUT_NAME, "wb"); |
| 53 | if (!fp) { |
| 54 | perror(OUT_NAME); |
| 55 | return; |
| 56 | } /* if */ |
| 57 | memcpy(&ghdr.cookie[0], GMON_MAGIC, 4); |
| 58 | memcpy(&ghdr.version, &version, sizeof(version)); |
| 59 | fwrite(&ghdr, sizeof(ghdr), 1, fp); |
| 60 | |
| 61 | for (ptr = __bb_head; ptr != 0; ptr = ptr->next) { |
| 62 | u_int ncounts = ptr->ncounts; |
| 63 | u_char tag; |
| 64 | u_int i; |
| 65 | |
| 66 | tag = GMON_TAG_BB_COUNT; |
| 67 | fwrite(&tag, sizeof(tag), 1, fp); |
| 68 | fwrite(&ncounts, sizeof(ncounts), 1, fp); |
| 69 | |
| 70 | for (i = 0; i < ncounts; ++i) { |
| 71 | fwrite(&ptr->addresses[i], sizeof(ptr->addresses[0]), 1, fp); |
| 72 | fwrite(&ptr->counts[i], sizeof(ptr->counts[0]), 1, fp); |
| 73 | } /* for */ |
| 74 | } /* for */ |
| 75 | fclose (fp); |
| 76 | } /* __bb_exit_func */ |
| 77 | |
| 78 | /*** end of __bb_exit_func.c ***/ |