Rudolf Marek | 8679e52 | 2011-09-02 23:34:15 +0200 | [diff] [blame] | 1 | #include <stdio.h> |
| 2 | #include <uthash.h> |
| 3 | #include <sys/gmon_out.h> |
| 4 | #include <stdlib.h> |
| 5 | |
| 6 | #define GMON_SEC "seconds s" |
| 7 | uint32_t mineip = 0xffffffff; |
| 8 | uint32_t maxeip = 0; |
| 9 | |
| 10 | /* a hash structure to hold the arc */ |
| 11 | struct arec { |
| 12 | uint32_t eip; |
| 13 | uint32_t from; |
| 14 | uint32_t count; |
| 15 | UT_hash_handle hh; |
| 16 | }; |
| 17 | |
| 18 | struct arec *arc = NULL; |
| 19 | |
| 20 | void note_arc(uint32_t eip, uint32_t from) |
| 21 | { |
| 22 | struct arec *s; |
| 23 | |
| 24 | HASH_FIND_INT(arc, &eip, s); |
| 25 | if (s == NULL) { |
| 26 | s = malloc(sizeof(struct arec)); |
| 27 | s->eip = eip; |
| 28 | s->from = from; |
| 29 | s->count = 1; |
| 30 | if (eip > maxeip) |
| 31 | maxeip = eip; |
| 32 | if (eip < mineip) |
| 33 | maxeip = eip; |
| 34 | |
| 35 | HASH_ADD_INT(arc, eip, s); |
| 36 | } else { |
| 37 | s->count++; |
| 38 | } |
| 39 | } |
| 40 | |
| 41 | int main(int argc, char* argv[]) |
| 42 | { |
| 43 | FILE *f, *fo; |
| 44 | struct arec *s; |
| 45 | uint32_t eip, from, tmp; |
| 46 | uint8_t tag; |
| 47 | uint16_t hit; |
| 48 | |
Daniele Forsi | ea70a50 | 2014-08-03 13:47:58 +0200 | [diff] [blame] | 49 | if (argc != 2) { |
Rudolf Marek | 8679e52 | 2011-09-02 23:34:15 +0200 | [diff] [blame] | 50 | fprintf(stderr, "Please specify the coreboot trace log as parameter\n"); |
| 51 | return 1; |
| 52 | } |
| 53 | |
| 54 | f = fopen(argv[1], "r"); |
Daniele Forsi | ea70a50 | 2014-08-03 13:47:58 +0200 | [diff] [blame] | 55 | if (f == NULL) { |
| 56 | perror("Unable to open the input file"); |
| 57 | return 1; |
| 58 | } |
Rudolf Marek | 8679e52 | 2011-09-02 23:34:15 +0200 | [diff] [blame] | 59 | |
Daniele Forsi | ea70a50 | 2014-08-03 13:47:58 +0200 | [diff] [blame] | 60 | fo = fopen("gmon.out", "w+"); |
| 61 | if (fo == NULL) { |
| 62 | perror("Unable to open the output file"); |
| 63 | fclose(f); |
Rudolf Marek | 8679e52 | 2011-09-02 23:34:15 +0200 | [diff] [blame] | 64 | return 1; |
| 65 | } |
| 66 | |
| 67 | while (!feof(f)) { |
| 68 | if (fscanf(f, "~%x(%x)%*[^\n]\n", &eip, &from) == 2) { |
| 69 | note_arc(eip, from); |
| 70 | } else if (fscanf(f, "%*c~%x(%x)%*[^\n]\n", &eip, &from) == 2) { |
| 71 | note_arc(eip, from); |
| 72 | } else { |
| 73 | /* just drop a line */ |
| 74 | tmp = fscanf(f, "%*[^\n]\n"); |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | /* write gprof header */ |
| 79 | fwrite(GMON_MAGIC, 1, sizeof(GMON_MAGIC) - 1, fo); |
| 80 | tmp = GMON_VERSION; |
| 81 | fwrite(&tmp, 1, sizeof(tmp), fo); |
| 82 | tmp = 0; |
| 83 | fwrite(&tmp, 1, sizeof(tmp), fo); |
| 84 | fwrite(&tmp, 1, sizeof(tmp), fo); |
| 85 | fwrite(&tmp, 1, sizeof(tmp), fo); |
| 86 | /* write fake histogram */ |
| 87 | tag = GMON_TAG_TIME_HIST; |
| 88 | fwrite(&tag, 1, sizeof(tag), fo); |
| 89 | fwrite(&mineip, 1, sizeof(mineip), fo); |
| 90 | fwrite(&maxeip, 1, sizeof(maxeip), fo); |
| 91 | /* size of histogram */ |
| 92 | tmp = 1; |
| 93 | fwrite(&tmp, 1, sizeof(tmp), fo); |
| 94 | /* prof rate */ |
| 95 | tmp = 1000; |
| 96 | fwrite(&tmp, 1, sizeof(tmp), fo); |
| 97 | fwrite(GMON_SEC, 1, sizeof(GMON_SEC) - 1, fo); |
| 98 | hit = 1; |
| 99 | fwrite(&hit, 1, sizeof(hit), fo); |
| 100 | |
| 101 | /* write call graph data */ |
| 102 | tag = GMON_TAG_CG_ARC; |
| 103 | for (s = arc; s != NULL; s = s->hh.next) { |
| 104 | fwrite(&tag, 1, sizeof(tag), fo); |
| 105 | fwrite(&s->from, 1, sizeof(s->from), fo); |
| 106 | fwrite(&s->eip, 1, sizeof(s->eip), fo); |
| 107 | fwrite(&s->count, 1, sizeof(s->count), fo); |
| 108 | } |
| 109 | |
| 110 | fclose(fo); |
Daniele Forsi | ea70a50 | 2014-08-03 13:47:58 +0200 | [diff] [blame] | 111 | fclose(f); |
| 112 | |
Rudolf Marek | 8679e52 | 2011-09-02 23:34:15 +0200 | [diff] [blame] | 113 | return 0; |
| 114 | } |