Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 1 | #include "util.h" |
| 2 | #include "../perf.h" |
Arnaldo Carvalho de Melo | a0055ae | 2009-06-01 17:50:19 -0300 | [diff] [blame] | 3 | #include "string.h" |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 4 | #include "symbol.h" |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 5 | #include "thread.h" |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 6 | |
Frederic Weisbecker | 8f28827a | 2009-08-16 22:05:48 +0200 | [diff] [blame] | 7 | #include "debug.h" |
| 8 | |
Arnaldo Carvalho de Melo | b32d133 | 2009-11-24 12:05:15 -0200 | [diff] [blame] | 9 | #include <asm/bug.h> |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 10 | #include <libelf.h> |
| 11 | #include <gelf.h> |
| 12 | #include <elf.h> |
Arnaldo Carvalho de Melo | f1617b4 | 2009-11-18 20:20:52 -0200 | [diff] [blame] | 13 | #include <limits.h> |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 14 | #include <sys/utsname.h> |
Peter Zijlstra | 2cdbc46 | 2009-08-05 14:05:16 +0200 | [diff] [blame] | 15 | |
Arnaldo Carvalho de Melo | c12e15e | 2009-11-21 14:31:25 -0200 | [diff] [blame] | 16 | #ifndef NT_GNU_BUILD_ID |
| 17 | #define NT_GNU_BUILD_ID 3 |
| 18 | #endif |
| 19 | |
Arnaldo Carvalho de Melo | 94cb9e3 | 2009-08-06 14:43:17 -0300 | [diff] [blame] | 20 | enum dso_origin { |
| 21 | DSO__ORIG_KERNEL = 0, |
| 22 | DSO__ORIG_JAVA_JIT, |
| 23 | DSO__ORIG_FEDORA, |
| 24 | DSO__ORIG_UBUNTU, |
| 25 | DSO__ORIG_BUILDID, |
| 26 | DSO__ORIG_DSO, |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 27 | DSO__ORIG_KMODULE, |
Arnaldo Carvalho de Melo | 94cb9e3 | 2009-08-06 14:43:17 -0300 | [diff] [blame] | 28 | DSO__ORIG_NOT_FOUND, |
| 29 | }; |
| 30 | |
Arnaldo Carvalho de Melo | b0da954 | 2009-11-27 16:29:14 -0200 | [diff] [blame] | 31 | static void dsos__add(struct list_head *head, struct dso *dso); |
Arnaldo Carvalho de Melo | 3610583 | 2009-11-27 16:29:16 -0200 | [diff] [blame] | 32 | static struct map *map__new2(u64 start, struct dso *dso, enum map_type type); |
Arnaldo Carvalho de Melo | 6a4694a | 2009-11-27 16:29:17 -0200 | [diff] [blame] | 33 | struct symbol *dso__find_symbol(struct dso *self, enum map_type type, u64 addr); |
Arnaldo Carvalho de Melo | c338aee | 2009-11-20 20:51:27 -0200 | [diff] [blame] | 34 | static int dso__load_kernel_sym(struct dso *self, struct map *map, |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 35 | struct map_groups *mg, symbol_filter_t filter); |
Arnaldo Carvalho de Melo | 00a192b | 2009-10-30 16:28:24 -0200 | [diff] [blame] | 36 | unsigned int symbol__priv_size; |
Arnaldo Carvalho de Melo | cc612d8 | 2009-11-23 16:39:10 -0200 | [diff] [blame] | 37 | static int vmlinux_path__nr_entries; |
| 38 | static char **vmlinux_path; |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 39 | |
Arnaldo Carvalho de Melo | b32d133 | 2009-11-24 12:05:15 -0200 | [diff] [blame] | 40 | static struct symbol_conf symbol_conf__defaults = { |
| 41 | .use_modules = true, |
| 42 | .try_vmlinux_path = true, |
| 43 | }; |
| 44 | |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 45 | static struct map_groups kmaps_mem; |
| 46 | struct map_groups *kmaps = &kmaps_mem; |
Arnaldo Carvalho de Melo | af427bf | 2009-10-05 14:26:17 -0300 | [diff] [blame] | 47 | |
Arnaldo Carvalho de Melo | 3610583 | 2009-11-27 16:29:16 -0200 | [diff] [blame] | 48 | bool dso__loaded(const struct dso *self, enum map_type type) |
| 49 | { |
| 50 | return self->loaded & (1 << type); |
| 51 | } |
| 52 | |
Arnaldo Carvalho de Melo | 79406cd | 2009-12-11 18:50:22 -0200 | [diff] [blame^] | 53 | bool dso__sorted_by_name(const struct dso *self, enum map_type type) |
| 54 | { |
| 55 | return self->sorted_by_name & (1 << type); |
| 56 | } |
| 57 | |
Arnaldo Carvalho de Melo | 3610583 | 2009-11-27 16:29:16 -0200 | [diff] [blame] | 58 | static void dso__set_loaded(struct dso *self, enum map_type type) |
| 59 | { |
| 60 | self->loaded |= (1 << type); |
| 61 | } |
| 62 | |
Arnaldo Carvalho de Melo | 79406cd | 2009-12-11 18:50:22 -0200 | [diff] [blame^] | 63 | static void dso__set_sorted_by_name(struct dso *self, enum map_type type) |
| 64 | { |
| 65 | self->sorted_by_name |= (1 << type); |
| 66 | } |
| 67 | |
Arnaldo Carvalho de Melo | 6893d4e | 2009-12-11 14:50:37 -0200 | [diff] [blame] | 68 | static bool symbol_type__is_a(char symbol_type, enum map_type map_type) |
| 69 | { |
| 70 | switch (map_type) { |
| 71 | case MAP__FUNCTION: |
| 72 | return symbol_type == 'T' || symbol_type == 'W'; |
Arnaldo Carvalho de Melo | f1dfa0b | 2009-12-11 14:50:39 -0200 | [diff] [blame] | 73 | case MAP__VARIABLE: |
| 74 | return symbol_type == 'D' || symbol_type == 'd'; |
Arnaldo Carvalho de Melo | 6893d4e | 2009-12-11 14:50:37 -0200 | [diff] [blame] | 75 | default: |
| 76 | return false; |
| 77 | } |
| 78 | } |
| 79 | |
Arnaldo Carvalho de Melo | fcf1203 | 2009-11-24 13:01:52 -0200 | [diff] [blame] | 80 | static void symbols__fixup_end(struct rb_root *self) |
Arnaldo Carvalho de Melo | af427bf | 2009-10-05 14:26:17 -0300 | [diff] [blame] | 81 | { |
Arnaldo Carvalho de Melo | fcf1203 | 2009-11-24 13:01:52 -0200 | [diff] [blame] | 82 | struct rb_node *nd, *prevnd = rb_first(self); |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 83 | struct symbol *curr, *prev; |
Arnaldo Carvalho de Melo | af427bf | 2009-10-05 14:26:17 -0300 | [diff] [blame] | 84 | |
| 85 | if (prevnd == NULL) |
| 86 | return; |
| 87 | |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 88 | curr = rb_entry(prevnd, struct symbol, rb_node); |
| 89 | |
Arnaldo Carvalho de Melo | af427bf | 2009-10-05 14:26:17 -0300 | [diff] [blame] | 90 | for (nd = rb_next(prevnd); nd; nd = rb_next(nd)) { |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 91 | prev = curr; |
| 92 | curr = rb_entry(nd, struct symbol, rb_node); |
Arnaldo Carvalho de Melo | af427bf | 2009-10-05 14:26:17 -0300 | [diff] [blame] | 93 | |
| 94 | if (prev->end == prev->start) |
| 95 | prev->end = curr->start - 1; |
Arnaldo Carvalho de Melo | af427bf | 2009-10-05 14:26:17 -0300 | [diff] [blame] | 96 | } |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 97 | |
| 98 | /* Last entry */ |
| 99 | if (curr->end == curr->start) |
| 100 | curr->end = roundup(curr->start, 4096); |
Arnaldo Carvalho de Melo | af427bf | 2009-10-05 14:26:17 -0300 | [diff] [blame] | 101 | } |
| 102 | |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 103 | static void __map_groups__fixup_end(struct map_groups *self, enum map_type type) |
Arnaldo Carvalho de Melo | af427bf | 2009-10-05 14:26:17 -0300 | [diff] [blame] | 104 | { |
| 105 | struct map *prev, *curr; |
Arnaldo Carvalho de Melo | 95011c6 | 2009-11-27 16:29:20 -0200 | [diff] [blame] | 106 | struct rb_node *nd, *prevnd = rb_first(&self->maps[type]); |
Arnaldo Carvalho de Melo | af427bf | 2009-10-05 14:26:17 -0300 | [diff] [blame] | 107 | |
| 108 | if (prevnd == NULL) |
| 109 | return; |
| 110 | |
| 111 | curr = rb_entry(prevnd, struct map, rb_node); |
Arnaldo Carvalho de Melo | af427bf | 2009-10-05 14:26:17 -0300 | [diff] [blame] | 112 | |
| 113 | for (nd = rb_next(prevnd); nd; nd = rb_next(nd)) { |
| 114 | prev = curr; |
| 115 | curr = rb_entry(nd, struct map, rb_node); |
| 116 | prev->end = curr->start - 1; |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 117 | } |
Arnaldo Carvalho de Melo | 90c8321 | 2009-11-21 14:31:24 -0200 | [diff] [blame] | 118 | |
| 119 | /* |
| 120 | * We still haven't the actual symbols, so guess the |
| 121 | * last map final address. |
| 122 | */ |
| 123 | curr->end = ~0UL; |
Arnaldo Carvalho de Melo | af427bf | 2009-10-05 14:26:17 -0300 | [diff] [blame] | 124 | } |
| 125 | |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 126 | static void map_groups__fixup_end(struct map_groups *self) |
Arnaldo Carvalho de Melo | 23ea4a3 | 2009-11-27 16:29:19 -0200 | [diff] [blame] | 127 | { |
| 128 | int i; |
| 129 | for (i = 0; i < MAP__NR_TYPES; ++i) |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 130 | __map_groups__fixup_end(self, i); |
Arnaldo Carvalho de Melo | 23ea4a3 | 2009-11-27 16:29:19 -0200 | [diff] [blame] | 131 | } |
| 132 | |
Arnaldo Carvalho de Melo | 00a192b | 2009-10-30 16:28:24 -0200 | [diff] [blame] | 133 | static struct symbol *symbol__new(u64 start, u64 len, const char *name) |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 134 | { |
Arnaldo Carvalho de Melo | 0085c954 | 2009-05-28 14:55:13 -0300 | [diff] [blame] | 135 | size_t namelen = strlen(name) + 1; |
Arnaldo Carvalho de Melo | 3647948 | 2009-11-24 12:05:16 -0200 | [diff] [blame] | 136 | struct symbol *self = zalloc(symbol__priv_size + |
| 137 | sizeof(*self) + namelen); |
| 138 | if (self == NULL) |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 139 | return NULL; |
| 140 | |
Arnaldo Carvalho de Melo | 3647948 | 2009-11-24 12:05:16 -0200 | [diff] [blame] | 141 | if (symbol__priv_size) |
Arnaldo Carvalho de Melo | 00a192b | 2009-10-30 16:28:24 -0200 | [diff] [blame] | 142 | self = ((void *)self) + symbol__priv_size; |
Arnaldo Carvalho de Melo | 3647948 | 2009-11-24 12:05:16 -0200 | [diff] [blame] | 143 | |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 144 | self->start = start; |
Mike Galbraith | 6cfcc53 | 2009-07-02 08:08:36 +0200 | [diff] [blame] | 145 | self->end = len ? start + len - 1 : start; |
Arnaldo Carvalho de Melo | e420499 | 2009-10-20 14:25:40 -0200 | [diff] [blame] | 146 | |
Arnaldo Carvalho de Melo | 6beba7a | 2009-10-21 17:34:06 -0200 | [diff] [blame] | 147 | pr_debug3("%s: %s %#Lx-%#Lx\n", __func__, name, start, self->end); |
Arnaldo Carvalho de Melo | e420499 | 2009-10-20 14:25:40 -0200 | [diff] [blame] | 148 | |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 149 | memcpy(self->name, name, namelen); |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 150 | |
| 151 | return self; |
| 152 | } |
| 153 | |
Arnaldo Carvalho de Melo | 00a192b | 2009-10-30 16:28:24 -0200 | [diff] [blame] | 154 | static void symbol__delete(struct symbol *self) |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 155 | { |
Arnaldo Carvalho de Melo | 00a192b | 2009-10-30 16:28:24 -0200 | [diff] [blame] | 156 | free(((void *)self) - symbol__priv_size); |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 157 | } |
| 158 | |
| 159 | static size_t symbol__fprintf(struct symbol *self, FILE *fp) |
| 160 | { |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 161 | return fprintf(fp, " %llx-%llx %s\n", |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 162 | self->start, self->end, self->name); |
| 163 | } |
| 164 | |
Arnaldo Carvalho de Melo | cfc10d3 | 2009-11-17 15:40:53 -0200 | [diff] [blame] | 165 | static void dso__set_long_name(struct dso *self, char *name) |
| 166 | { |
Arnaldo Carvalho de Melo | ef6ae72 | 2009-11-20 20:51:29 -0200 | [diff] [blame] | 167 | if (name == NULL) |
| 168 | return; |
Arnaldo Carvalho de Melo | cfc10d3 | 2009-11-17 15:40:53 -0200 | [diff] [blame] | 169 | self->long_name = name; |
| 170 | self->long_name_len = strlen(name); |
| 171 | } |
| 172 | |
| 173 | static void dso__set_basename(struct dso *self) |
| 174 | { |
| 175 | self->short_name = basename(self->long_name); |
| 176 | } |
| 177 | |
Arnaldo Carvalho de Melo | 00a192b | 2009-10-30 16:28:24 -0200 | [diff] [blame] | 178 | struct dso *dso__new(const char *name) |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 179 | { |
| 180 | struct dso *self = malloc(sizeof(*self) + strlen(name) + 1); |
| 181 | |
| 182 | if (self != NULL) { |
Arnaldo Carvalho de Melo | 6a4694a | 2009-11-27 16:29:17 -0200 | [diff] [blame] | 183 | int i; |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 184 | strcpy(self->name, name); |
Arnaldo Carvalho de Melo | cfc10d3 | 2009-11-17 15:40:53 -0200 | [diff] [blame] | 185 | dso__set_long_name(self, self->name); |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 186 | self->short_name = self->name; |
Arnaldo Carvalho de Melo | 6a4694a | 2009-11-27 16:29:17 -0200 | [diff] [blame] | 187 | for (i = 0; i < MAP__NR_TYPES; ++i) |
Arnaldo Carvalho de Melo | 79406cd | 2009-12-11 18:50:22 -0200 | [diff] [blame^] | 188 | self->symbols[i] = self->symbol_names[i] = RB_ROOT; |
Arnaldo Carvalho de Melo | 6a4694a | 2009-11-27 16:29:17 -0200 | [diff] [blame] | 189 | self->find_symbol = dso__find_symbol; |
Arnaldo Carvalho de Melo | 52d422d | 2009-07-10 22:47:28 -0300 | [diff] [blame] | 190 | self->slen_calculated = 0; |
Arnaldo Carvalho de Melo | 94cb9e3 | 2009-08-06 14:43:17 -0300 | [diff] [blame] | 191 | self->origin = DSO__ORIG_NOT_FOUND; |
Arnaldo Carvalho de Melo | 8d06367 | 2009-11-04 18:50:43 -0200 | [diff] [blame] | 192 | self->loaded = 0; |
Arnaldo Carvalho de Melo | 79406cd | 2009-12-11 18:50:22 -0200 | [diff] [blame^] | 193 | self->sorted_by_name = 0; |
Arnaldo Carvalho de Melo | 8d06367 | 2009-11-04 18:50:43 -0200 | [diff] [blame] | 194 | self->has_build_id = 0; |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 195 | } |
| 196 | |
| 197 | return self; |
| 198 | } |
| 199 | |
Arnaldo Carvalho de Melo | fcf1203 | 2009-11-24 13:01:52 -0200 | [diff] [blame] | 200 | static void symbols__delete(struct rb_root *self) |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 201 | { |
| 202 | struct symbol *pos; |
Arnaldo Carvalho de Melo | fcf1203 | 2009-11-24 13:01:52 -0200 | [diff] [blame] | 203 | struct rb_node *next = rb_first(self); |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 204 | |
| 205 | while (next) { |
| 206 | pos = rb_entry(next, struct symbol, rb_node); |
| 207 | next = rb_next(&pos->rb_node); |
Arnaldo Carvalho de Melo | fcf1203 | 2009-11-24 13:01:52 -0200 | [diff] [blame] | 208 | rb_erase(&pos->rb_node, self); |
Arnaldo Carvalho de Melo | 00a192b | 2009-10-30 16:28:24 -0200 | [diff] [blame] | 209 | symbol__delete(pos); |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 210 | } |
| 211 | } |
| 212 | |
| 213 | void dso__delete(struct dso *self) |
| 214 | { |
Arnaldo Carvalho de Melo | 6a4694a | 2009-11-27 16:29:17 -0200 | [diff] [blame] | 215 | int i; |
| 216 | for (i = 0; i < MAP__NR_TYPES; ++i) |
| 217 | symbols__delete(&self->symbols[i]); |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 218 | if (self->long_name != self->name) |
| 219 | free(self->long_name); |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 220 | free(self); |
| 221 | } |
| 222 | |
Arnaldo Carvalho de Melo | 8d06367 | 2009-11-04 18:50:43 -0200 | [diff] [blame] | 223 | void dso__set_build_id(struct dso *self, void *build_id) |
| 224 | { |
| 225 | memcpy(self->build_id, build_id, sizeof(self->build_id)); |
| 226 | self->has_build_id = 1; |
| 227 | } |
| 228 | |
Arnaldo Carvalho de Melo | fcf1203 | 2009-11-24 13:01:52 -0200 | [diff] [blame] | 229 | static void symbols__insert(struct rb_root *self, struct symbol *sym) |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 230 | { |
Arnaldo Carvalho de Melo | fcf1203 | 2009-11-24 13:01:52 -0200 | [diff] [blame] | 231 | struct rb_node **p = &self->rb_node; |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 232 | struct rb_node *parent = NULL; |
Paul Mackerras | 9cffa8d | 2009-06-19 22:21:42 +1000 | [diff] [blame] | 233 | const u64 ip = sym->start; |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 234 | struct symbol *s; |
| 235 | |
| 236 | while (*p != NULL) { |
| 237 | parent = *p; |
| 238 | s = rb_entry(parent, struct symbol, rb_node); |
| 239 | if (ip < s->start) |
| 240 | p = &(*p)->rb_left; |
| 241 | else |
| 242 | p = &(*p)->rb_right; |
| 243 | } |
| 244 | rb_link_node(&sym->rb_node, parent, p); |
Arnaldo Carvalho de Melo | fcf1203 | 2009-11-24 13:01:52 -0200 | [diff] [blame] | 245 | rb_insert_color(&sym->rb_node, self); |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 246 | } |
| 247 | |
Arnaldo Carvalho de Melo | fcf1203 | 2009-11-24 13:01:52 -0200 | [diff] [blame] | 248 | static struct symbol *symbols__find(struct rb_root *self, u64 ip) |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 249 | { |
| 250 | struct rb_node *n; |
| 251 | |
| 252 | if (self == NULL) |
| 253 | return NULL; |
| 254 | |
Arnaldo Carvalho de Melo | fcf1203 | 2009-11-24 13:01:52 -0200 | [diff] [blame] | 255 | n = self->rb_node; |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 256 | |
| 257 | while (n) { |
| 258 | struct symbol *s = rb_entry(n, struct symbol, rb_node); |
| 259 | |
| 260 | if (ip < s->start) |
| 261 | n = n->rb_left; |
| 262 | else if (ip > s->end) |
| 263 | n = n->rb_right; |
| 264 | else |
| 265 | return s; |
| 266 | } |
| 267 | |
| 268 | return NULL; |
| 269 | } |
| 270 | |
Arnaldo Carvalho de Melo | 79406cd | 2009-12-11 18:50:22 -0200 | [diff] [blame^] | 271 | struct symbol_name_rb_node { |
| 272 | struct rb_node rb_node; |
| 273 | struct symbol sym; |
| 274 | }; |
| 275 | |
| 276 | static void symbols__insert_by_name(struct rb_root *self, struct symbol *sym) |
| 277 | { |
| 278 | struct rb_node **p = &self->rb_node; |
| 279 | struct rb_node *parent = NULL; |
| 280 | struct symbol_name_rb_node *symn = ((void *)sym) - sizeof(*parent), *s; |
| 281 | |
| 282 | while (*p != NULL) { |
| 283 | parent = *p; |
| 284 | s = rb_entry(parent, struct symbol_name_rb_node, rb_node); |
| 285 | if (strcmp(sym->name, s->sym.name) < 0) |
| 286 | p = &(*p)->rb_left; |
| 287 | else |
| 288 | p = &(*p)->rb_right; |
| 289 | } |
| 290 | rb_link_node(&symn->rb_node, parent, p); |
| 291 | rb_insert_color(&symn->rb_node, self); |
| 292 | } |
| 293 | |
| 294 | static void symbols__sort_by_name(struct rb_root *self, struct rb_root *source) |
| 295 | { |
| 296 | struct rb_node *nd; |
| 297 | |
| 298 | for (nd = rb_first(source); nd; nd = rb_next(nd)) { |
| 299 | struct symbol *pos = rb_entry(nd, struct symbol, rb_node); |
| 300 | symbols__insert_by_name(self, pos); |
| 301 | } |
| 302 | } |
| 303 | |
| 304 | static struct symbol *symbols__find_by_name(struct rb_root *self, const char *name) |
| 305 | { |
| 306 | struct rb_node *n; |
| 307 | |
| 308 | if (self == NULL) |
| 309 | return NULL; |
| 310 | |
| 311 | n = self->rb_node; |
| 312 | |
| 313 | while (n) { |
| 314 | struct symbol_name_rb_node *s; |
| 315 | int cmp; |
| 316 | |
| 317 | s = rb_entry(n, struct symbol_name_rb_node, rb_node); |
| 318 | cmp = strcmp(name, s->sym.name); |
| 319 | |
| 320 | if (cmp < 0) |
| 321 | n = n->rb_left; |
| 322 | else if (cmp > 0) |
| 323 | n = n->rb_right; |
| 324 | else |
| 325 | return &s->sym; |
| 326 | } |
| 327 | |
| 328 | return NULL; |
| 329 | } |
| 330 | |
| 331 | struct symbol *dso__find_symbol(struct dso *self, |
| 332 | enum map_type type, u64 addr) |
Arnaldo Carvalho de Melo | fcf1203 | 2009-11-24 13:01:52 -0200 | [diff] [blame] | 333 | { |
Arnaldo Carvalho de Melo | 6a4694a | 2009-11-27 16:29:17 -0200 | [diff] [blame] | 334 | return symbols__find(&self->symbols[type], addr); |
Arnaldo Carvalho de Melo | fcf1203 | 2009-11-24 13:01:52 -0200 | [diff] [blame] | 335 | } |
| 336 | |
Arnaldo Carvalho de Melo | 79406cd | 2009-12-11 18:50:22 -0200 | [diff] [blame^] | 337 | struct symbol *dso__find_symbol_by_name(struct dso *self, enum map_type type, |
| 338 | const char *name) |
| 339 | { |
| 340 | return symbols__find_by_name(&self->symbol_names[type], name); |
| 341 | } |
| 342 | |
| 343 | void dso__sort_by_name(struct dso *self, enum map_type type) |
| 344 | { |
| 345 | dso__set_sorted_by_name(self, type); |
| 346 | return symbols__sort_by_name(&self->symbol_names[type], |
| 347 | &self->symbols[type]); |
| 348 | } |
| 349 | |
Arnaldo Carvalho de Melo | 8d06367 | 2009-11-04 18:50:43 -0200 | [diff] [blame] | 350 | int build_id__sprintf(u8 *self, int len, char *bf) |
| 351 | { |
| 352 | char *bid = bf; |
| 353 | u8 *raw = self; |
| 354 | int i; |
| 355 | |
| 356 | for (i = 0; i < len; ++i) { |
| 357 | sprintf(bid, "%02x", *raw); |
| 358 | ++raw; |
| 359 | bid += 2; |
| 360 | } |
| 361 | |
| 362 | return raw - self; |
| 363 | } |
| 364 | |
Arnaldo Carvalho de Melo | 9e03eb2 | 2009-11-16 16:32:44 -0200 | [diff] [blame] | 365 | size_t dso__fprintf_buildid(struct dso *self, FILE *fp) |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 366 | { |
Arnaldo Carvalho de Melo | 8d06367 | 2009-11-04 18:50:43 -0200 | [diff] [blame] | 367 | char sbuild_id[BUILD_ID_SIZE * 2 + 1]; |
Arnaldo Carvalho de Melo | 8d06367 | 2009-11-04 18:50:43 -0200 | [diff] [blame] | 368 | |
| 369 | build_id__sprintf(self->build_id, sizeof(self->build_id), sbuild_id); |
Arnaldo Carvalho de Melo | 9e03eb2 | 2009-11-16 16:32:44 -0200 | [diff] [blame] | 370 | return fprintf(fp, "%s", sbuild_id); |
| 371 | } |
| 372 | |
Arnaldo Carvalho de Melo | 95011c6 | 2009-11-27 16:29:20 -0200 | [diff] [blame] | 373 | size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp) |
Arnaldo Carvalho de Melo | 9e03eb2 | 2009-11-16 16:32:44 -0200 | [diff] [blame] | 374 | { |
| 375 | struct rb_node *nd; |
| 376 | size_t ret = fprintf(fp, "dso: %s (", self->short_name); |
| 377 | |
| 378 | ret += dso__fprintf_buildid(self, fp); |
Arnaldo Carvalho de Melo | 6a4694a | 2009-11-27 16:29:17 -0200 | [diff] [blame] | 379 | ret += fprintf(fp, ")\n"); |
Arnaldo Carvalho de Melo | 95011c6 | 2009-11-27 16:29:20 -0200 | [diff] [blame] | 380 | for (nd = rb_first(&self->symbols[type]); nd; nd = rb_next(nd)) { |
| 381 | struct symbol *pos = rb_entry(nd, struct symbol, rb_node); |
| 382 | ret += symbol__fprintf(pos, fp); |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 383 | } |
| 384 | |
| 385 | return ret; |
| 386 | } |
| 387 | |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 388 | /* |
| 389 | * Loads the function entries in /proc/kallsyms into kernel_map->dso, |
| 390 | * so that we can in the next step set the symbol ->end address and then |
| 391 | * call kernel_maps__split_kallsyms. |
| 392 | */ |
Arnaldo Carvalho de Melo | 4e06255 | 2009-11-27 16:29:18 -0200 | [diff] [blame] | 393 | static int dso__load_all_kallsyms(struct dso *self, struct map *map) |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 394 | { |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 395 | char *line = NULL; |
| 396 | size_t n; |
Arnaldo Carvalho de Melo | 4e06255 | 2009-11-27 16:29:18 -0200 | [diff] [blame] | 397 | struct rb_root *root = &self->symbols[map->type]; |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 398 | FILE *file = fopen("/proc/kallsyms", "r"); |
| 399 | |
| 400 | if (file == NULL) |
| 401 | goto out_failure; |
| 402 | |
| 403 | while (!feof(file)) { |
Paul Mackerras | 9cffa8d | 2009-06-19 22:21:42 +1000 | [diff] [blame] | 404 | u64 start; |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 405 | struct symbol *sym; |
| 406 | int line_len, len; |
| 407 | char symbol_type; |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 408 | char *symbol_name; |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 409 | |
| 410 | line_len = getline(&line, &n, file); |
| 411 | if (line_len < 0) |
| 412 | break; |
| 413 | |
| 414 | if (!line) |
| 415 | goto out_failure; |
| 416 | |
| 417 | line[--line_len] = '\0'; /* \n */ |
| 418 | |
Arnaldo Carvalho de Melo | a0055ae | 2009-06-01 17:50:19 -0300 | [diff] [blame] | 419 | len = hex2u64(line, &start); |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 420 | |
| 421 | len++; |
| 422 | if (len + 2 >= line_len) |
| 423 | continue; |
| 424 | |
| 425 | symbol_type = toupper(line[len]); |
Arnaldo Carvalho de Melo | 6893d4e | 2009-12-11 14:50:37 -0200 | [diff] [blame] | 426 | if (!symbol_type__is_a(symbol_type, map->type)) |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 427 | continue; |
Arnaldo Carvalho de Melo | af427bf | 2009-10-05 14:26:17 -0300 | [diff] [blame] | 428 | |
| 429 | symbol_name = line + len + 2; |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 430 | /* |
| 431 | * Will fix up the end later, when we have all symbols sorted. |
| 432 | */ |
Arnaldo Carvalho de Melo | 00a192b | 2009-10-30 16:28:24 -0200 | [diff] [blame] | 433 | sym = symbol__new(start, 0, symbol_name); |
Arnaldo Carvalho de Melo | af427bf | 2009-10-05 14:26:17 -0300 | [diff] [blame] | 434 | |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 435 | if (sym == NULL) |
| 436 | goto out_delete_line; |
Arnaldo Carvalho de Melo | 8216416 | 2009-11-16 13:48:11 -0200 | [diff] [blame] | 437 | /* |
| 438 | * We will pass the symbols to the filter later, in |
Arnaldo Carvalho de Melo | 4e06255 | 2009-11-27 16:29:18 -0200 | [diff] [blame] | 439 | * map__split_kallsyms, when we have split the maps per module |
Arnaldo Carvalho de Melo | 8216416 | 2009-11-16 13:48:11 -0200 | [diff] [blame] | 440 | */ |
Arnaldo Carvalho de Melo | 4e06255 | 2009-11-27 16:29:18 -0200 | [diff] [blame] | 441 | symbols__insert(root, sym); |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 442 | } |
| 443 | |
| 444 | free(line); |
| 445 | fclose(file); |
| 446 | |
| 447 | return 0; |
| 448 | |
| 449 | out_delete_line: |
| 450 | free(line); |
| 451 | out_failure: |
| 452 | return -1; |
| 453 | } |
| 454 | |
| 455 | /* |
| 456 | * Split the symbols into maps, making sure there are no overlaps, i.e. the |
| 457 | * kernel range is broken in several maps, named [kernel].N, as we don't have |
| 458 | * the original ELF section names vmlinux have. |
| 459 | */ |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 460 | static int dso__split_kallsyms(struct dso *self, struct map *map, |
| 461 | struct map_groups *mg, symbol_filter_t filter) |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 462 | { |
Arnaldo Carvalho de Melo | 4e06255 | 2009-11-27 16:29:18 -0200 | [diff] [blame] | 463 | struct map *curr_map = map; |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 464 | struct symbol *pos; |
| 465 | int count = 0; |
Arnaldo Carvalho de Melo | 4e06255 | 2009-11-27 16:29:18 -0200 | [diff] [blame] | 466 | struct rb_root *root = &self->symbols[map->type]; |
| 467 | struct rb_node *next = rb_first(root); |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 468 | int kernel_range = 0; |
| 469 | |
| 470 | while (next) { |
| 471 | char *module; |
| 472 | |
| 473 | pos = rb_entry(next, struct symbol, rb_node); |
| 474 | next = rb_next(&pos->rb_node); |
| 475 | |
| 476 | module = strchr(pos->name, '\t'); |
| 477 | if (module) { |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 478 | if (!mg->use_modules) |
Arnaldo Carvalho de Melo | 1de8e24 | 2009-11-27 16:29:21 -0200 | [diff] [blame] | 479 | goto discard_symbol; |
| 480 | |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 481 | *module++ = '\0'; |
| 482 | |
Arnaldo Carvalho de Melo | 4e06255 | 2009-11-27 16:29:18 -0200 | [diff] [blame] | 483 | if (strcmp(self->name, module)) { |
Arnaldo Carvalho de Melo | 79406cd | 2009-12-11 18:50:22 -0200 | [diff] [blame^] | 484 | curr_map = map_groups__find_by_name(mg, map->type, module); |
Arnaldo Carvalho de Melo | 4e06255 | 2009-11-27 16:29:18 -0200 | [diff] [blame] | 485 | if (curr_map == NULL) { |
Arnaldo Carvalho de Melo | 95011c6 | 2009-11-27 16:29:20 -0200 | [diff] [blame] | 486 | pr_debug("/proc/{kallsyms,modules} " |
| 487 | "inconsistency!\n"); |
Arnaldo Carvalho de Melo | af427bf | 2009-10-05 14:26:17 -0300 | [diff] [blame] | 488 | return -1; |
| 489 | } |
| 490 | } |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 491 | /* |
| 492 | * So that we look just like we get from .ko files, |
| 493 | * i.e. not prelinked, relative to map->start. |
| 494 | */ |
Arnaldo Carvalho de Melo | 4e06255 | 2009-11-27 16:29:18 -0200 | [diff] [blame] | 495 | pos->start = curr_map->map_ip(curr_map, pos->start); |
| 496 | pos->end = curr_map->map_ip(curr_map, pos->end); |
| 497 | } else if (curr_map != map) { |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 498 | char dso_name[PATH_MAX]; |
| 499 | struct dso *dso; |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 500 | |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 501 | snprintf(dso_name, sizeof(dso_name), "[kernel].%d", |
| 502 | kernel_range++); |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 503 | |
Arnaldo Carvalho de Melo | 00a192b | 2009-10-30 16:28:24 -0200 | [diff] [blame] | 504 | dso = dso__new(dso_name); |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 505 | if (dso == NULL) |
| 506 | return -1; |
| 507 | |
Arnaldo Carvalho de Melo | 4e06255 | 2009-11-27 16:29:18 -0200 | [diff] [blame] | 508 | curr_map = map__new2(pos->start, dso, map->type); |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 509 | if (map == NULL) { |
| 510 | dso__delete(dso); |
| 511 | return -1; |
| 512 | } |
| 513 | |
Arnaldo Carvalho de Melo | 4e06255 | 2009-11-27 16:29:18 -0200 | [diff] [blame] | 514 | curr_map->map_ip = curr_map->unmap_ip = identity__map_ip; |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 515 | map_groups__insert(mg, curr_map); |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 516 | ++kernel_range; |
| 517 | } |
| 518 | |
Arnaldo Carvalho de Melo | 4e06255 | 2009-11-27 16:29:18 -0200 | [diff] [blame] | 519 | if (filter && filter(curr_map, pos)) { |
Arnaldo Carvalho de Melo | 1de8e24 | 2009-11-27 16:29:21 -0200 | [diff] [blame] | 520 | discard_symbol: rb_erase(&pos->rb_node, root); |
Arnaldo Carvalho de Melo | 00a192b | 2009-10-30 16:28:24 -0200 | [diff] [blame] | 521 | symbol__delete(pos); |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 522 | } else { |
Arnaldo Carvalho de Melo | 4e06255 | 2009-11-27 16:29:18 -0200 | [diff] [blame] | 523 | if (curr_map != map) { |
| 524 | rb_erase(&pos->rb_node, root); |
| 525 | symbols__insert(&curr_map->dso->symbols[curr_map->type], pos); |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 526 | } |
Mike Galbraith | 9974f49 | 2009-07-02 08:05:58 +0200 | [diff] [blame] | 527 | count++; |
| 528 | } |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 529 | } |
| 530 | |
Mike Galbraith | 9974f49 | 2009-07-02 08:05:58 +0200 | [diff] [blame] | 531 | return count; |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 532 | } |
| 533 | |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 534 | |
Arnaldo Carvalho de Melo | 4e06255 | 2009-11-27 16:29:18 -0200 | [diff] [blame] | 535 | static int dso__load_kallsyms(struct dso *self, struct map *map, |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 536 | struct map_groups *mg, symbol_filter_t filter) |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 537 | { |
Arnaldo Carvalho de Melo | 4e06255 | 2009-11-27 16:29:18 -0200 | [diff] [blame] | 538 | if (dso__load_all_kallsyms(self, map) < 0) |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 539 | return -1; |
| 540 | |
Arnaldo Carvalho de Melo | 4e06255 | 2009-11-27 16:29:18 -0200 | [diff] [blame] | 541 | symbols__fixup_end(&self->symbols[map->type]); |
| 542 | self->origin = DSO__ORIG_KERNEL; |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 543 | |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 544 | return dso__split_kallsyms(self, map, mg, filter); |
Arnaldo Carvalho de Melo | 23ea4a3 | 2009-11-27 16:29:19 -0200 | [diff] [blame] | 545 | } |
| 546 | |
| 547 | size_t kernel_maps__fprintf(FILE *fp) |
| 548 | { |
| 549 | size_t printed = fprintf(fp, "Kernel maps:\n"); |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 550 | printed += map_groups__fprintf_maps(kmaps, fp); |
Arnaldo Carvalho de Melo | 6beba7a | 2009-10-21 17:34:06 -0200 | [diff] [blame] | 551 | return printed + fprintf(fp, "END kernel maps\n"); |
Arnaldo Carvalho de Melo | af427bf | 2009-10-05 14:26:17 -0300 | [diff] [blame] | 552 | } |
| 553 | |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 554 | static int dso__load_perf_map(struct dso *self, struct map *map, |
Arnaldo Carvalho de Melo | 6beba7a | 2009-10-21 17:34:06 -0200 | [diff] [blame] | 555 | symbol_filter_t filter) |
Pekka Enberg | 80d496b | 2009-06-08 21:12:48 +0300 | [diff] [blame] | 556 | { |
| 557 | char *line = NULL; |
| 558 | size_t n; |
| 559 | FILE *file; |
| 560 | int nr_syms = 0; |
| 561 | |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 562 | file = fopen(self->long_name, "r"); |
Pekka Enberg | 80d496b | 2009-06-08 21:12:48 +0300 | [diff] [blame] | 563 | if (file == NULL) |
| 564 | goto out_failure; |
| 565 | |
| 566 | while (!feof(file)) { |
Paul Mackerras | 9cffa8d | 2009-06-19 22:21:42 +1000 | [diff] [blame] | 567 | u64 start, size; |
Pekka Enberg | 80d496b | 2009-06-08 21:12:48 +0300 | [diff] [blame] | 568 | struct symbol *sym; |
| 569 | int line_len, len; |
| 570 | |
| 571 | line_len = getline(&line, &n, file); |
| 572 | if (line_len < 0) |
| 573 | break; |
| 574 | |
| 575 | if (!line) |
| 576 | goto out_failure; |
| 577 | |
| 578 | line[--line_len] = '\0'; /* \n */ |
| 579 | |
| 580 | len = hex2u64(line, &start); |
| 581 | |
| 582 | len++; |
| 583 | if (len + 2 >= line_len) |
| 584 | continue; |
| 585 | |
| 586 | len += hex2u64(line + len, &size); |
| 587 | |
| 588 | len++; |
| 589 | if (len + 2 >= line_len) |
| 590 | continue; |
| 591 | |
Arnaldo Carvalho de Melo | 00a192b | 2009-10-30 16:28:24 -0200 | [diff] [blame] | 592 | sym = symbol__new(start, size, line + len); |
Pekka Enberg | 80d496b | 2009-06-08 21:12:48 +0300 | [diff] [blame] | 593 | |
| 594 | if (sym == NULL) |
| 595 | goto out_delete_line; |
| 596 | |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 597 | if (filter && filter(map, sym)) |
Arnaldo Carvalho de Melo | 00a192b | 2009-10-30 16:28:24 -0200 | [diff] [blame] | 598 | symbol__delete(sym); |
Pekka Enberg | 80d496b | 2009-06-08 21:12:48 +0300 | [diff] [blame] | 599 | else { |
Arnaldo Carvalho de Melo | 6a4694a | 2009-11-27 16:29:17 -0200 | [diff] [blame] | 600 | symbols__insert(&self->symbols[map->type], sym); |
Pekka Enberg | 80d496b | 2009-06-08 21:12:48 +0300 | [diff] [blame] | 601 | nr_syms++; |
| 602 | } |
| 603 | } |
| 604 | |
| 605 | free(line); |
| 606 | fclose(file); |
| 607 | |
| 608 | return nr_syms; |
| 609 | |
| 610 | out_delete_line: |
| 611 | free(line); |
| 612 | out_failure: |
| 613 | return -1; |
| 614 | } |
| 615 | |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 616 | /** |
| 617 | * elf_symtab__for_each_symbol - iterate thru all the symbols |
| 618 | * |
| 619 | * @self: struct elf_symtab instance to iterate |
Ingo Molnar | 83a0944 | 2009-08-15 12:26:57 +0200 | [diff] [blame] | 620 | * @idx: uint32_t idx |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 621 | * @sym: GElf_Sym iterator |
| 622 | */ |
Ingo Molnar | 83a0944 | 2009-08-15 12:26:57 +0200 | [diff] [blame] | 623 | #define elf_symtab__for_each_symbol(syms, nr_syms, idx, sym) \ |
| 624 | for (idx = 0, gelf_getsym(syms, idx, &sym);\ |
| 625 | idx < nr_syms; \ |
| 626 | idx++, gelf_getsym(syms, idx, &sym)) |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 627 | |
| 628 | static inline uint8_t elf_sym__type(const GElf_Sym *sym) |
| 629 | { |
| 630 | return GELF_ST_TYPE(sym->st_info); |
| 631 | } |
| 632 | |
| 633 | static inline int elf_sym__is_function(const GElf_Sym *sym) |
| 634 | { |
| 635 | return elf_sym__type(sym) == STT_FUNC && |
| 636 | sym->st_name != 0 && |
Arnaldo Carvalho de Melo | 8183313 | 2009-10-05 23:35:03 -0300 | [diff] [blame] | 637 | sym->st_shndx != SHN_UNDEF; |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 638 | } |
| 639 | |
Arnaldo Carvalho de Melo | f1dfa0b | 2009-12-11 14:50:39 -0200 | [diff] [blame] | 640 | static inline bool elf_sym__is_object(const GElf_Sym *sym) |
| 641 | { |
| 642 | return elf_sym__type(sym) == STT_OBJECT && |
| 643 | sym->st_name != 0 && |
| 644 | sym->st_shndx != SHN_UNDEF; |
| 645 | } |
| 646 | |
Mike Galbraith | 6cfcc53 | 2009-07-02 08:08:36 +0200 | [diff] [blame] | 647 | static inline int elf_sym__is_label(const GElf_Sym *sym) |
| 648 | { |
| 649 | return elf_sym__type(sym) == STT_NOTYPE && |
| 650 | sym->st_name != 0 && |
| 651 | sym->st_shndx != SHN_UNDEF && |
| 652 | sym->st_shndx != SHN_ABS; |
| 653 | } |
| 654 | |
| 655 | static inline const char *elf_sec__name(const GElf_Shdr *shdr, |
| 656 | const Elf_Data *secstrs) |
| 657 | { |
| 658 | return secstrs->d_buf + shdr->sh_name; |
| 659 | } |
| 660 | |
| 661 | static inline int elf_sec__is_text(const GElf_Shdr *shdr, |
| 662 | const Elf_Data *secstrs) |
| 663 | { |
| 664 | return strstr(elf_sec__name(shdr, secstrs), "text") != NULL; |
| 665 | } |
| 666 | |
Arnaldo Carvalho de Melo | f1dfa0b | 2009-12-11 14:50:39 -0200 | [diff] [blame] | 667 | static inline bool elf_sec__is_data(const GElf_Shdr *shdr, |
| 668 | const Elf_Data *secstrs) |
| 669 | { |
| 670 | return strstr(elf_sec__name(shdr, secstrs), "data") != NULL; |
| 671 | } |
| 672 | |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 673 | static inline const char *elf_sym__name(const GElf_Sym *sym, |
| 674 | const Elf_Data *symstrs) |
| 675 | { |
| 676 | return symstrs->d_buf + sym->st_name; |
| 677 | } |
| 678 | |
| 679 | static Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep, |
| 680 | GElf_Shdr *shp, const char *name, |
Ingo Molnar | 83a0944 | 2009-08-15 12:26:57 +0200 | [diff] [blame] | 681 | size_t *idx) |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 682 | { |
| 683 | Elf_Scn *sec = NULL; |
| 684 | size_t cnt = 1; |
| 685 | |
| 686 | while ((sec = elf_nextscn(elf, sec)) != NULL) { |
| 687 | char *str; |
| 688 | |
| 689 | gelf_getshdr(sec, shp); |
| 690 | str = elf_strptr(elf, ep->e_shstrndx, shp->sh_name); |
| 691 | if (!strcmp(name, str)) { |
Ingo Molnar | 83a0944 | 2009-08-15 12:26:57 +0200 | [diff] [blame] | 692 | if (idx) |
| 693 | *idx = cnt; |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 694 | break; |
| 695 | } |
| 696 | ++cnt; |
| 697 | } |
| 698 | |
| 699 | return sec; |
| 700 | } |
| 701 | |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 702 | #define elf_section__for_each_rel(reldata, pos, pos_mem, idx, nr_entries) \ |
| 703 | for (idx = 0, pos = gelf_getrel(reldata, 0, &pos_mem); \ |
| 704 | idx < nr_entries; \ |
| 705 | ++idx, pos = gelf_getrel(reldata, idx, &pos_mem)) |
| 706 | |
| 707 | #define elf_section__for_each_rela(reldata, pos, pos_mem, idx, nr_entries) \ |
| 708 | for (idx = 0, pos = gelf_getrela(reldata, 0, &pos_mem); \ |
| 709 | idx < nr_entries; \ |
| 710 | ++idx, pos = gelf_getrela(reldata, idx, &pos_mem)) |
| 711 | |
Arnaldo Carvalho de Melo | a25e46c | 2009-07-11 12:18:36 -0300 | [diff] [blame] | 712 | /* |
| 713 | * We need to check if we have a .dynsym, so that we can handle the |
| 714 | * .plt, synthesizing its symbols, that aren't on the symtabs (be it |
| 715 | * .dynsym or .symtab). |
| 716 | * And always look at the original dso, not at debuginfo packages, that |
| 717 | * have the PLT data stripped out (shdr_rel_plt.sh_type == SHT_NOBITS). |
| 718 | */ |
Arnaldo Carvalho de Melo | 8216416 | 2009-11-16 13:48:11 -0200 | [diff] [blame] | 719 | static int dso__synthesize_plt_symbols(struct dso *self, struct map *map, |
| 720 | symbol_filter_t filter) |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 721 | { |
| 722 | uint32_t nr_rel_entries, idx; |
| 723 | GElf_Sym sym; |
Paul Mackerras | 9cffa8d | 2009-06-19 22:21:42 +1000 | [diff] [blame] | 724 | u64 plt_offset; |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 725 | GElf_Shdr shdr_plt; |
| 726 | struct symbol *f; |
Arnaldo Carvalho de Melo | a25e46c | 2009-07-11 12:18:36 -0300 | [diff] [blame] | 727 | GElf_Shdr shdr_rel_plt, shdr_dynsym; |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 728 | Elf_Data *reldata, *syms, *symstrs; |
Arnaldo Carvalho de Melo | a25e46c | 2009-07-11 12:18:36 -0300 | [diff] [blame] | 729 | Elf_Scn *scn_plt_rel, *scn_symstrs, *scn_dynsym; |
| 730 | size_t dynsym_idx; |
| 731 | GElf_Ehdr ehdr; |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 732 | char sympltname[1024]; |
Arnaldo Carvalho de Melo | a25e46c | 2009-07-11 12:18:36 -0300 | [diff] [blame] | 733 | Elf *elf; |
| 734 | int nr = 0, symidx, fd, err = 0; |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 735 | |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 736 | fd = open(self->long_name, O_RDONLY); |
Arnaldo Carvalho de Melo | a25e46c | 2009-07-11 12:18:36 -0300 | [diff] [blame] | 737 | if (fd < 0) |
| 738 | goto out; |
| 739 | |
Marti Raudsepp | 8408712 | 2009-10-24 19:10:36 +0300 | [diff] [blame] | 740 | elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL); |
Arnaldo Carvalho de Melo | a25e46c | 2009-07-11 12:18:36 -0300 | [diff] [blame] | 741 | if (elf == NULL) |
| 742 | goto out_close; |
| 743 | |
| 744 | if (gelf_getehdr(elf, &ehdr) == NULL) |
| 745 | goto out_elf_end; |
| 746 | |
| 747 | scn_dynsym = elf_section_by_name(elf, &ehdr, &shdr_dynsym, |
| 748 | ".dynsym", &dynsym_idx); |
| 749 | if (scn_dynsym == NULL) |
| 750 | goto out_elf_end; |
| 751 | |
| 752 | scn_plt_rel = elf_section_by_name(elf, &ehdr, &shdr_rel_plt, |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 753 | ".rela.plt", NULL); |
| 754 | if (scn_plt_rel == NULL) { |
Arnaldo Carvalho de Melo | a25e46c | 2009-07-11 12:18:36 -0300 | [diff] [blame] | 755 | scn_plt_rel = elf_section_by_name(elf, &ehdr, &shdr_rel_plt, |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 756 | ".rel.plt", NULL); |
| 757 | if (scn_plt_rel == NULL) |
Arnaldo Carvalho de Melo | a25e46c | 2009-07-11 12:18:36 -0300 | [diff] [blame] | 758 | goto out_elf_end; |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 759 | } |
| 760 | |
Arnaldo Carvalho de Melo | a25e46c | 2009-07-11 12:18:36 -0300 | [diff] [blame] | 761 | err = -1; |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 762 | |
Arnaldo Carvalho de Melo | a25e46c | 2009-07-11 12:18:36 -0300 | [diff] [blame] | 763 | if (shdr_rel_plt.sh_link != dynsym_idx) |
| 764 | goto out_elf_end; |
| 765 | |
| 766 | if (elf_section_by_name(elf, &ehdr, &shdr_plt, ".plt", NULL) == NULL) |
| 767 | goto out_elf_end; |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 768 | |
| 769 | /* |
Ingo Molnar | 83a0944 | 2009-08-15 12:26:57 +0200 | [diff] [blame] | 770 | * Fetch the relocation section to find the idxes to the GOT |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 771 | * and the symbols in the .dynsym they refer to. |
| 772 | */ |
| 773 | reldata = elf_getdata(scn_plt_rel, NULL); |
| 774 | if (reldata == NULL) |
Arnaldo Carvalho de Melo | a25e46c | 2009-07-11 12:18:36 -0300 | [diff] [blame] | 775 | goto out_elf_end; |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 776 | |
| 777 | syms = elf_getdata(scn_dynsym, NULL); |
| 778 | if (syms == NULL) |
Arnaldo Carvalho de Melo | a25e46c | 2009-07-11 12:18:36 -0300 | [diff] [blame] | 779 | goto out_elf_end; |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 780 | |
Arnaldo Carvalho de Melo | a25e46c | 2009-07-11 12:18:36 -0300 | [diff] [blame] | 781 | scn_symstrs = elf_getscn(elf, shdr_dynsym.sh_link); |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 782 | if (scn_symstrs == NULL) |
Arnaldo Carvalho de Melo | a25e46c | 2009-07-11 12:18:36 -0300 | [diff] [blame] | 783 | goto out_elf_end; |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 784 | |
| 785 | symstrs = elf_getdata(scn_symstrs, NULL); |
| 786 | if (symstrs == NULL) |
Arnaldo Carvalho de Melo | a25e46c | 2009-07-11 12:18:36 -0300 | [diff] [blame] | 787 | goto out_elf_end; |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 788 | |
| 789 | nr_rel_entries = shdr_rel_plt.sh_size / shdr_rel_plt.sh_entsize; |
| 790 | plt_offset = shdr_plt.sh_offset; |
| 791 | |
| 792 | if (shdr_rel_plt.sh_type == SHT_RELA) { |
| 793 | GElf_Rela pos_mem, *pos; |
| 794 | |
| 795 | elf_section__for_each_rela(reldata, pos, pos_mem, idx, |
| 796 | nr_rel_entries) { |
| 797 | symidx = GELF_R_SYM(pos->r_info); |
| 798 | plt_offset += shdr_plt.sh_entsize; |
| 799 | gelf_getsym(syms, symidx, &sym); |
| 800 | snprintf(sympltname, sizeof(sympltname), |
| 801 | "%s@plt", elf_sym__name(&sym, symstrs)); |
| 802 | |
| 803 | f = symbol__new(plt_offset, shdr_plt.sh_entsize, |
Arnaldo Carvalho de Melo | 00a192b | 2009-10-30 16:28:24 -0200 | [diff] [blame] | 804 | sympltname); |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 805 | if (!f) |
Arnaldo Carvalho de Melo | a25e46c | 2009-07-11 12:18:36 -0300 | [diff] [blame] | 806 | goto out_elf_end; |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 807 | |
Arnaldo Carvalho de Melo | 8216416 | 2009-11-16 13:48:11 -0200 | [diff] [blame] | 808 | if (filter && filter(map, f)) |
| 809 | symbol__delete(f); |
| 810 | else { |
Arnaldo Carvalho de Melo | 6a4694a | 2009-11-27 16:29:17 -0200 | [diff] [blame] | 811 | symbols__insert(&self->symbols[map->type], f); |
Arnaldo Carvalho de Melo | 8216416 | 2009-11-16 13:48:11 -0200 | [diff] [blame] | 812 | ++nr; |
| 813 | } |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 814 | } |
| 815 | } else if (shdr_rel_plt.sh_type == SHT_REL) { |
| 816 | GElf_Rel pos_mem, *pos; |
| 817 | elf_section__for_each_rel(reldata, pos, pos_mem, idx, |
| 818 | nr_rel_entries) { |
| 819 | symidx = GELF_R_SYM(pos->r_info); |
| 820 | plt_offset += shdr_plt.sh_entsize; |
| 821 | gelf_getsym(syms, symidx, &sym); |
| 822 | snprintf(sympltname, sizeof(sympltname), |
| 823 | "%s@plt", elf_sym__name(&sym, symstrs)); |
| 824 | |
| 825 | f = symbol__new(plt_offset, shdr_plt.sh_entsize, |
Arnaldo Carvalho de Melo | 00a192b | 2009-10-30 16:28:24 -0200 | [diff] [blame] | 826 | sympltname); |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 827 | if (!f) |
Arnaldo Carvalho de Melo | a25e46c | 2009-07-11 12:18:36 -0300 | [diff] [blame] | 828 | goto out_elf_end; |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 829 | |
Arnaldo Carvalho de Melo | 8216416 | 2009-11-16 13:48:11 -0200 | [diff] [blame] | 830 | if (filter && filter(map, f)) |
| 831 | symbol__delete(f); |
| 832 | else { |
Arnaldo Carvalho de Melo | 6a4694a | 2009-11-27 16:29:17 -0200 | [diff] [blame] | 833 | symbols__insert(&self->symbols[map->type], f); |
Arnaldo Carvalho de Melo | 8216416 | 2009-11-16 13:48:11 -0200 | [diff] [blame] | 834 | ++nr; |
| 835 | } |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 836 | } |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 837 | } |
| 838 | |
Arnaldo Carvalho de Melo | a25e46c | 2009-07-11 12:18:36 -0300 | [diff] [blame] | 839 | err = 0; |
| 840 | out_elf_end: |
| 841 | elf_end(elf); |
| 842 | out_close: |
| 843 | close(fd); |
| 844 | |
| 845 | if (err == 0) |
| 846 | return nr; |
| 847 | out: |
Arnaldo Carvalho de Melo | 6beba7a | 2009-10-21 17:34:06 -0200 | [diff] [blame] | 848 | pr_warning("%s: problems reading %s PLT info.\n", |
| 849 | __func__, self->long_name); |
Arnaldo Carvalho de Melo | a25e46c | 2009-07-11 12:18:36 -0300 | [diff] [blame] | 850 | return 0; |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 851 | } |
| 852 | |
Arnaldo Carvalho de Melo | d45868d | 2009-12-11 14:50:38 -0200 | [diff] [blame] | 853 | static bool elf_sym__is_a(GElf_Sym *self, enum map_type type) |
| 854 | { |
| 855 | switch (type) { |
| 856 | case MAP__FUNCTION: |
| 857 | return elf_sym__is_function(self); |
Arnaldo Carvalho de Melo | f1dfa0b | 2009-12-11 14:50:39 -0200 | [diff] [blame] | 858 | case MAP__VARIABLE: |
| 859 | return elf_sym__is_object(self); |
Arnaldo Carvalho de Melo | d45868d | 2009-12-11 14:50:38 -0200 | [diff] [blame] | 860 | default: |
| 861 | return false; |
| 862 | } |
| 863 | } |
| 864 | |
| 865 | static bool elf_sec__is_a(GElf_Shdr *self, Elf_Data *secstrs, enum map_type type) |
| 866 | { |
| 867 | switch (type) { |
| 868 | case MAP__FUNCTION: |
| 869 | return elf_sec__is_text(self, secstrs); |
Arnaldo Carvalho de Melo | f1dfa0b | 2009-12-11 14:50:39 -0200 | [diff] [blame] | 870 | case MAP__VARIABLE: |
| 871 | return elf_sec__is_data(self, secstrs); |
Arnaldo Carvalho de Melo | d45868d | 2009-12-11 14:50:38 -0200 | [diff] [blame] | 872 | default: |
| 873 | return false; |
| 874 | } |
| 875 | } |
| 876 | |
Arnaldo Carvalho de Melo | 95011c6 | 2009-11-27 16:29:20 -0200 | [diff] [blame] | 877 | static int dso__load_sym(struct dso *self, struct map *map, |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 878 | struct map_groups *mg, const char *name, int fd, |
Arnaldo Carvalho de Melo | 95011c6 | 2009-11-27 16:29:20 -0200 | [diff] [blame] | 879 | symbol_filter_t filter, int kernel, int kmodule) |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 880 | { |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 881 | struct map *curr_map = map; |
| 882 | struct dso *curr_dso = self; |
| 883 | size_t dso_name_len = strlen(self->short_name); |
Mike Galbraith | 6cfcc53 | 2009-07-02 08:08:36 +0200 | [diff] [blame] | 884 | Elf_Data *symstrs, *secstrs; |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 885 | uint32_t nr_syms; |
| 886 | int err = -1; |
Ingo Molnar | 83a0944 | 2009-08-15 12:26:57 +0200 | [diff] [blame] | 887 | uint32_t idx; |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 888 | GElf_Ehdr ehdr; |
| 889 | GElf_Shdr shdr; |
| 890 | Elf_Data *syms; |
| 891 | GElf_Sym sym; |
Arnaldo Carvalho de Melo | a25e46c | 2009-07-11 12:18:36 -0300 | [diff] [blame] | 892 | Elf_Scn *sec, *sec_strndx; |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 893 | Elf *elf; |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 894 | int nr = 0; |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 895 | |
Marti Raudsepp | 8408712 | 2009-10-24 19:10:36 +0300 | [diff] [blame] | 896 | elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL); |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 897 | if (elf == NULL) { |
Arnaldo Carvalho de Melo | 6beba7a | 2009-10-21 17:34:06 -0200 | [diff] [blame] | 898 | pr_err("%s: cannot read %s ELF file.\n", __func__, name); |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 899 | goto out_close; |
| 900 | } |
| 901 | |
| 902 | if (gelf_getehdr(elf, &ehdr) == NULL) { |
Arnaldo Carvalho de Melo | 6beba7a | 2009-10-21 17:34:06 -0200 | [diff] [blame] | 903 | pr_err("%s: cannot get elf header.\n", __func__); |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 904 | goto out_elf_end; |
| 905 | } |
| 906 | |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 907 | sec = elf_section_by_name(elf, &ehdr, &shdr, ".symtab", NULL); |
| 908 | if (sec == NULL) { |
Arnaldo Carvalho de Melo | a25e46c | 2009-07-11 12:18:36 -0300 | [diff] [blame] | 909 | sec = elf_section_by_name(elf, &ehdr, &shdr, ".dynsym", NULL); |
| 910 | if (sec == NULL) |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 911 | goto out_elf_end; |
Arnaldo Carvalho de Melo | 8ce998d | 2009-06-03 00:54:33 -0300 | [diff] [blame] | 912 | } |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 913 | |
| 914 | syms = elf_getdata(sec, NULL); |
| 915 | if (syms == NULL) |
| 916 | goto out_elf_end; |
| 917 | |
| 918 | sec = elf_getscn(elf, shdr.sh_link); |
| 919 | if (sec == NULL) |
| 920 | goto out_elf_end; |
| 921 | |
| 922 | symstrs = elf_getdata(sec, NULL); |
| 923 | if (symstrs == NULL) |
| 924 | goto out_elf_end; |
| 925 | |
Mike Galbraith | 6cfcc53 | 2009-07-02 08:08:36 +0200 | [diff] [blame] | 926 | sec_strndx = elf_getscn(elf, ehdr.e_shstrndx); |
| 927 | if (sec_strndx == NULL) |
| 928 | goto out_elf_end; |
| 929 | |
| 930 | secstrs = elf_getdata(sec_strndx, NULL); |
Stoyan Gaydarov | 9b30a26 | 2009-07-30 05:25:29 -0500 | [diff] [blame] | 931 | if (secstrs == NULL) |
Mike Galbraith | 6cfcc53 | 2009-07-02 08:08:36 +0200 | [diff] [blame] | 932 | goto out_elf_end; |
| 933 | |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 934 | nr_syms = shdr.sh_size / shdr.sh_entsize; |
| 935 | |
Arjan van de Ven | e9fbc9d | 2009-06-06 21:22:33 +0200 | [diff] [blame] | 936 | memset(&sym, 0, sizeof(sym)); |
Mike Galbraith | d20ff6b | 2009-07-20 14:01:38 +0200 | [diff] [blame] | 937 | if (!kernel) { |
| 938 | self->adjust_symbols = (ehdr.e_type == ET_EXEC || |
Arnaldo Carvalho de Melo | 30d7a77 | 2009-07-02 21:24:14 -0300 | [diff] [blame] | 939 | elf_section_by_name(elf, &ehdr, &shdr, |
| 940 | ".gnu.prelink_undo", |
| 941 | NULL) != NULL); |
Mike Galbraith | d20ff6b | 2009-07-20 14:01:38 +0200 | [diff] [blame] | 942 | } else self->adjust_symbols = 0; |
| 943 | |
Ingo Molnar | 83a0944 | 2009-08-15 12:26:57 +0200 | [diff] [blame] | 944 | elf_symtab__for_each_symbol(syms, nr_syms, idx, sym) { |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 945 | struct symbol *f; |
Ingo Molnar | 83a0944 | 2009-08-15 12:26:57 +0200 | [diff] [blame] | 946 | const char *elf_name; |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 947 | char *demangled = NULL; |
Mike Galbraith | 6cfcc53 | 2009-07-02 08:08:36 +0200 | [diff] [blame] | 948 | int is_label = elf_sym__is_label(&sym); |
| 949 | const char *section_name; |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 950 | |
Arnaldo Carvalho de Melo | d45868d | 2009-12-11 14:50:38 -0200 | [diff] [blame] | 951 | if (!is_label && !elf_sym__is_a(&sym, map->type)) |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 952 | continue; |
| 953 | |
| 954 | sec = elf_getscn(elf, sym.st_shndx); |
| 955 | if (!sec) |
| 956 | goto out_elf_end; |
| 957 | |
| 958 | gelf_getshdr(sec, &shdr); |
Mike Galbraith | 6cfcc53 | 2009-07-02 08:08:36 +0200 | [diff] [blame] | 959 | |
Arnaldo Carvalho de Melo | d45868d | 2009-12-11 14:50:38 -0200 | [diff] [blame] | 960 | if (is_label && !elf_sec__is_a(&shdr, secstrs, map->type)) |
Mike Galbraith | 6cfcc53 | 2009-07-02 08:08:36 +0200 | [diff] [blame] | 961 | continue; |
| 962 | |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 963 | elf_name = elf_sym__name(&sym, symstrs); |
Mike Galbraith | 6cfcc53 | 2009-07-02 08:08:36 +0200 | [diff] [blame] | 964 | section_name = elf_sec__name(&shdr, secstrs); |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 965 | |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 966 | if (kernel || kmodule) { |
| 967 | char dso_name[PATH_MAX]; |
| 968 | |
| 969 | if (strcmp(section_name, |
| 970 | curr_dso->short_name + dso_name_len) == 0) |
| 971 | goto new_symbol; |
| 972 | |
| 973 | if (strcmp(section_name, ".text") == 0) { |
| 974 | curr_map = map; |
| 975 | curr_dso = self; |
| 976 | goto new_symbol; |
| 977 | } |
| 978 | |
| 979 | snprintf(dso_name, sizeof(dso_name), |
| 980 | "%s%s", self->short_name, section_name); |
| 981 | |
Arnaldo Carvalho de Melo | 79406cd | 2009-12-11 18:50:22 -0200 | [diff] [blame^] | 982 | curr_map = map_groups__find_by_name(mg, map->type, dso_name); |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 983 | if (curr_map == NULL) { |
| 984 | u64 start = sym.st_value; |
| 985 | |
| 986 | if (kmodule) |
| 987 | start += map->start + shdr.sh_offset; |
| 988 | |
Arnaldo Carvalho de Melo | 00a192b | 2009-10-30 16:28:24 -0200 | [diff] [blame] | 989 | curr_dso = dso__new(dso_name); |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 990 | if (curr_dso == NULL) |
| 991 | goto out_elf_end; |
Arnaldo Carvalho de Melo | 3610583 | 2009-11-27 16:29:16 -0200 | [diff] [blame] | 992 | curr_map = map__new2(start, curr_dso, |
| 993 | MAP__FUNCTION); |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 994 | if (curr_map == NULL) { |
| 995 | dso__delete(curr_dso); |
| 996 | goto out_elf_end; |
| 997 | } |
Arnaldo Carvalho de Melo | ed52ce2 | 2009-10-19 17:17:57 -0200 | [diff] [blame] | 998 | curr_map->map_ip = identity__map_ip; |
| 999 | curr_map->unmap_ip = identity__map_ip; |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 1000 | curr_dso->origin = DSO__ORIG_KERNEL; |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 1001 | map_groups__insert(kmaps, curr_map); |
Arnaldo Carvalho de Melo | b0da954 | 2009-11-27 16:29:14 -0200 | [diff] [blame] | 1002 | dsos__add(&dsos__kernel, curr_dso); |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 1003 | } else |
| 1004 | curr_dso = curr_map->dso; |
| 1005 | |
| 1006 | goto new_symbol; |
Arnaldo Carvalho de Melo | af427bf | 2009-10-05 14:26:17 -0300 | [diff] [blame] | 1007 | } |
| 1008 | |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 1009 | if (curr_dso->adjust_symbols) { |
Arnaldo Carvalho de Melo | 6beba7a | 2009-10-21 17:34:06 -0200 | [diff] [blame] | 1010 | pr_debug2("adjusting symbol: st_value: %Lx sh_addr: " |
| 1011 | "%Lx sh_offset: %Lx\n", (u64)sym.st_value, |
| 1012 | (u64)shdr.sh_addr, (u64)shdr.sh_offset); |
Arnaldo Carvalho de Melo | f5812a7 | 2009-06-30 11:43:17 -0300 | [diff] [blame] | 1013 | sym.st_value -= shdr.sh_addr - shdr.sh_offset; |
Arnaldo Carvalho de Melo | af427bf | 2009-10-05 14:26:17 -0300 | [diff] [blame] | 1014 | } |
Arnaldo Carvalho de Melo | 28ac909 | 2009-07-20 14:14:12 -0300 | [diff] [blame] | 1015 | /* |
| 1016 | * We need to figure out if the object was created from C++ sources |
| 1017 | * DWARF DW_compile_unit has this, but we don't always have access |
| 1018 | * to it... |
| 1019 | */ |
Ingo Molnar | 83a0944 | 2009-08-15 12:26:57 +0200 | [diff] [blame] | 1020 | demangled = bfd_demangle(NULL, elf_name, DMGL_PARAMS | DMGL_ANSI); |
Arnaldo Carvalho de Melo | 28ac909 | 2009-07-20 14:14:12 -0300 | [diff] [blame] | 1021 | if (demangled != NULL) |
Ingo Molnar | 83a0944 | 2009-08-15 12:26:57 +0200 | [diff] [blame] | 1022 | elf_name = demangled; |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 1023 | new_symbol: |
Arnaldo Carvalho de Melo | 00a192b | 2009-10-30 16:28:24 -0200 | [diff] [blame] | 1024 | f = symbol__new(sym.st_value, sym.st_size, elf_name); |
Arnaldo Carvalho de Melo | 28ac909 | 2009-07-20 14:14:12 -0300 | [diff] [blame] | 1025 | free(demangled); |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 1026 | if (!f) |
| 1027 | goto out_elf_end; |
| 1028 | |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 1029 | if (filter && filter(curr_map, f)) |
Arnaldo Carvalho de Melo | 00a192b | 2009-10-30 16:28:24 -0200 | [diff] [blame] | 1030 | symbol__delete(f); |
Arnaldo Carvalho de Melo | 69ee69f | 2009-05-28 14:55:26 -0300 | [diff] [blame] | 1031 | else { |
Arnaldo Carvalho de Melo | 6a4694a | 2009-11-27 16:29:17 -0200 | [diff] [blame] | 1032 | symbols__insert(&curr_dso->symbols[curr_map->type], f); |
Arnaldo Carvalho de Melo | 69ee69f | 2009-05-28 14:55:26 -0300 | [diff] [blame] | 1033 | nr++; |
| 1034 | } |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 1035 | } |
| 1036 | |
Arnaldo Carvalho de Melo | 2e538c4 | 2009-10-07 13:48:56 -0300 | [diff] [blame] | 1037 | /* |
| 1038 | * For misannotated, zeroed, ASM function sizes. |
| 1039 | */ |
| 1040 | if (nr > 0) |
Arnaldo Carvalho de Melo | 6a4694a | 2009-11-27 16:29:17 -0200 | [diff] [blame] | 1041 | symbols__fixup_end(&self->symbols[map->type]); |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 1042 | err = nr; |
| 1043 | out_elf_end: |
| 1044 | elf_end(elf); |
| 1045 | out_close: |
| 1046 | return err; |
| 1047 | } |
| 1048 | |
Arnaldo Carvalho de Melo | 78075ca | 2009-11-20 20:51:26 -0200 | [diff] [blame] | 1049 | static bool dso__build_id_equal(const struct dso *self, u8 *build_id) |
| 1050 | { |
| 1051 | return memcmp(self->build_id, build_id, sizeof(self->build_id)) == 0; |
| 1052 | } |
| 1053 | |
Arnaldo Carvalho de Melo | b0da954 | 2009-11-27 16:29:14 -0200 | [diff] [blame] | 1054 | static bool __dsos__read_build_ids(struct list_head *head) |
Frederic Weisbecker | 57f395a | 2009-11-11 04:51:04 +0100 | [diff] [blame] | 1055 | { |
Arnaldo Carvalho de Melo | e30a3d1 | 2009-11-18 20:20:51 -0200 | [diff] [blame] | 1056 | bool have_build_id = false; |
Frederic Weisbecker | 57f395a | 2009-11-11 04:51:04 +0100 | [diff] [blame] | 1057 | struct dso *pos; |
| 1058 | |
Arnaldo Carvalho de Melo | b0da954 | 2009-11-27 16:29:14 -0200 | [diff] [blame] | 1059 | list_for_each_entry(pos, head, node) |
Arnaldo Carvalho de Melo | e30a3d1 | 2009-11-18 20:20:51 -0200 | [diff] [blame] | 1060 | if (filename__read_build_id(pos->long_name, pos->build_id, |
| 1061 | sizeof(pos->build_id)) > 0) { |
| 1062 | have_build_id = true; |
| 1063 | pos->has_build_id = true; |
| 1064 | } |
Frederic Weisbecker | 57f395a | 2009-11-11 04:51:04 +0100 | [diff] [blame] | 1065 | |
Arnaldo Carvalho de Melo | e30a3d1 | 2009-11-18 20:20:51 -0200 | [diff] [blame] | 1066 | return have_build_id; |
Frederic Weisbecker | 57f395a | 2009-11-11 04:51:04 +0100 | [diff] [blame] | 1067 | } |
| 1068 | |
Arnaldo Carvalho de Melo | b0da954 | 2009-11-27 16:29:14 -0200 | [diff] [blame] | 1069 | bool dsos__read_build_ids(void) |
| 1070 | { |
Arnaldo Carvalho de Melo | 8b4825b | 2009-12-09 20:09:37 -0200 | [diff] [blame] | 1071 | bool kbuildids = __dsos__read_build_ids(&dsos__kernel), |
| 1072 | ubuildids = __dsos__read_build_ids(&dsos__user); |
| 1073 | return kbuildids || ubuildids; |
Arnaldo Carvalho de Melo | b0da954 | 2009-11-27 16:29:14 -0200 | [diff] [blame] | 1074 | } |
| 1075 | |
Arnaldo Carvalho de Melo | fd7a346 | 2009-11-20 20:51:25 -0200 | [diff] [blame] | 1076 | /* |
| 1077 | * Align offset to 4 bytes as needed for note name and descriptor data. |
| 1078 | */ |
| 1079 | #define NOTE_ALIGN(n) (((n) + 3) & -4U) |
| 1080 | |
Arnaldo Carvalho de Melo | 2643ce1 | 2009-11-03 21:46:10 -0200 | [diff] [blame] | 1081 | int filename__read_build_id(const char *filename, void *bf, size_t size) |
Arnaldo Carvalho de Melo | 4d1e00a | 2009-08-05 19:02:49 -0300 | [diff] [blame] | 1082 | { |
Arnaldo Carvalho de Melo | 2643ce1 | 2009-11-03 21:46:10 -0200 | [diff] [blame] | 1083 | int fd, err = -1; |
Arnaldo Carvalho de Melo | 4d1e00a | 2009-08-05 19:02:49 -0300 | [diff] [blame] | 1084 | GElf_Ehdr ehdr; |
| 1085 | GElf_Shdr shdr; |
Arnaldo Carvalho de Melo | fd7a346 | 2009-11-20 20:51:25 -0200 | [diff] [blame] | 1086 | Elf_Data *data; |
Arnaldo Carvalho de Melo | 4d1e00a | 2009-08-05 19:02:49 -0300 | [diff] [blame] | 1087 | Elf_Scn *sec; |
Pekka Enberg | e57cfcd | 2009-11-22 12:29:44 +0200 | [diff] [blame] | 1088 | Elf_Kind ek; |
Arnaldo Carvalho de Melo | fd7a346 | 2009-11-20 20:51:25 -0200 | [diff] [blame] | 1089 | void *ptr; |
Arnaldo Carvalho de Melo | 4d1e00a | 2009-08-05 19:02:49 -0300 | [diff] [blame] | 1090 | Elf *elf; |
Arnaldo Carvalho de Melo | 4d1e00a | 2009-08-05 19:02:49 -0300 | [diff] [blame] | 1091 | |
Arnaldo Carvalho de Melo | 2643ce1 | 2009-11-03 21:46:10 -0200 | [diff] [blame] | 1092 | if (size < BUILD_ID_SIZE) |
| 1093 | goto out; |
| 1094 | |
| 1095 | fd = open(filename, O_RDONLY); |
Arnaldo Carvalho de Melo | 4d1e00a | 2009-08-05 19:02:49 -0300 | [diff] [blame] | 1096 | if (fd < 0) |
| 1097 | goto out; |
| 1098 | |
Marti Raudsepp | 8408712 | 2009-10-24 19:10:36 +0300 | [diff] [blame] | 1099 | elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL); |
Arnaldo Carvalho de Melo | 4d1e00a | 2009-08-05 19:02:49 -0300 | [diff] [blame] | 1100 | if (elf == NULL) { |
Arnaldo Carvalho de Melo | 8d06367 | 2009-11-04 18:50:43 -0200 | [diff] [blame] | 1101 | pr_debug2("%s: cannot read %s ELF file.\n", __func__, filename); |
Arnaldo Carvalho de Melo | 4d1e00a | 2009-08-05 19:02:49 -0300 | [diff] [blame] | 1102 | goto out_close; |
| 1103 | } |
| 1104 | |
Pekka Enberg | e57cfcd | 2009-11-22 12:29:44 +0200 | [diff] [blame] | 1105 | ek = elf_kind(elf); |
| 1106 | if (ek != ELF_K_ELF) |
| 1107 | goto out_elf_end; |
| 1108 | |
Arnaldo Carvalho de Melo | 4d1e00a | 2009-08-05 19:02:49 -0300 | [diff] [blame] | 1109 | if (gelf_getehdr(elf, &ehdr) == NULL) { |
Arnaldo Carvalho de Melo | 6beba7a | 2009-10-21 17:34:06 -0200 | [diff] [blame] | 1110 | pr_err("%s: cannot get elf header.\n", __func__); |
Arnaldo Carvalho de Melo | 4d1e00a | 2009-08-05 19:02:49 -0300 | [diff] [blame] | 1111 | goto out_elf_end; |
| 1112 | } |
| 1113 | |
Arnaldo Carvalho de Melo | 2643ce1 | 2009-11-03 21:46:10 -0200 | [diff] [blame] | 1114 | sec = elf_section_by_name(elf, &ehdr, &shdr, |
| 1115 | ".note.gnu.build-id", NULL); |
Arnaldo Carvalho de Melo | fd7a346 | 2009-11-20 20:51:25 -0200 | [diff] [blame] | 1116 | if (sec == NULL) { |
| 1117 | sec = elf_section_by_name(elf, &ehdr, &shdr, |
| 1118 | ".notes", NULL); |
| 1119 | if (sec == NULL) |
| 1120 | goto out_elf_end; |
| 1121 | } |
| 1122 | |
| 1123 | data = elf_getdata(sec, NULL); |
| 1124 | if (data == NULL) |
Arnaldo Carvalho de Melo | 4d1e00a | 2009-08-05 19:02:49 -0300 | [diff] [blame] | 1125 | goto out_elf_end; |
| 1126 | |
Arnaldo Carvalho de Melo | fd7a346 | 2009-11-20 20:51:25 -0200 | [diff] [blame] | 1127 | ptr = data->d_buf; |
| 1128 | while (ptr < (data->d_buf + data->d_size)) { |
| 1129 | GElf_Nhdr *nhdr = ptr; |
| 1130 | int namesz = NOTE_ALIGN(nhdr->n_namesz), |
| 1131 | descsz = NOTE_ALIGN(nhdr->n_descsz); |
| 1132 | const char *name; |
| 1133 | |
| 1134 | ptr += sizeof(*nhdr); |
| 1135 | name = ptr; |
| 1136 | ptr += namesz; |
| 1137 | if (nhdr->n_type == NT_GNU_BUILD_ID && |
| 1138 | nhdr->n_namesz == sizeof("GNU")) { |
| 1139 | if (memcmp(name, "GNU", sizeof("GNU")) == 0) { |
| 1140 | memcpy(bf, ptr, BUILD_ID_SIZE); |
| 1141 | err = BUILD_ID_SIZE; |
| 1142 | break; |
| 1143 | } |
| 1144 | } |
| 1145 | ptr += descsz; |
| 1146 | } |
Arnaldo Carvalho de Melo | 2643ce1 | 2009-11-03 21:46:10 -0200 | [diff] [blame] | 1147 | out_elf_end: |
| 1148 | elf_end(elf); |
| 1149 | out_close: |
| 1150 | close(fd); |
| 1151 | out: |
| 1152 | return err; |
| 1153 | } |
| 1154 | |
Arnaldo Carvalho de Melo | f1617b4 | 2009-11-18 20:20:52 -0200 | [diff] [blame] | 1155 | int sysfs__read_build_id(const char *filename, void *build_id, size_t size) |
| 1156 | { |
| 1157 | int fd, err = -1; |
| 1158 | |
| 1159 | if (size < BUILD_ID_SIZE) |
| 1160 | goto out; |
| 1161 | |
| 1162 | fd = open(filename, O_RDONLY); |
| 1163 | if (fd < 0) |
| 1164 | goto out; |
| 1165 | |
| 1166 | while (1) { |
| 1167 | char bf[BUFSIZ]; |
| 1168 | GElf_Nhdr nhdr; |
| 1169 | int namesz, descsz; |
| 1170 | |
| 1171 | if (read(fd, &nhdr, sizeof(nhdr)) != sizeof(nhdr)) |
| 1172 | break; |
| 1173 | |
Arnaldo Carvalho de Melo | fd7a346 | 2009-11-20 20:51:25 -0200 | [diff] [blame] | 1174 | namesz = NOTE_ALIGN(nhdr.n_namesz); |
| 1175 | descsz = NOTE_ALIGN(nhdr.n_descsz); |
Arnaldo Carvalho de Melo | f1617b4 | 2009-11-18 20:20:52 -0200 | [diff] [blame] | 1176 | if (nhdr.n_type == NT_GNU_BUILD_ID && |
| 1177 | nhdr.n_namesz == sizeof("GNU")) { |
| 1178 | if (read(fd, bf, namesz) != namesz) |
| 1179 | break; |
| 1180 | if (memcmp(bf, "GNU", sizeof("GNU")) == 0) { |
| 1181 | if (read(fd, build_id, |
| 1182 | BUILD_ID_SIZE) == BUILD_ID_SIZE) { |
| 1183 | err = 0; |
| 1184 | break; |
| 1185 | } |
| 1186 | } else if (read(fd, bf, descsz) != descsz) |
| 1187 | break; |
| 1188 | } else { |
| 1189 | int n = namesz + descsz; |
| 1190 | if (read(fd, bf, n) != n) |
| 1191 | break; |
| 1192 | } |
| 1193 | } |
| 1194 | close(fd); |
| 1195 | out: |
| 1196 | return err; |
| 1197 | } |
| 1198 | |
Arnaldo Carvalho de Melo | 94cb9e3 | 2009-08-06 14:43:17 -0300 | [diff] [blame] | 1199 | char dso__symtab_origin(const struct dso *self) |
| 1200 | { |
| 1201 | static const char origin[] = { |
| 1202 | [DSO__ORIG_KERNEL] = 'k', |
| 1203 | [DSO__ORIG_JAVA_JIT] = 'j', |
| 1204 | [DSO__ORIG_FEDORA] = 'f', |
| 1205 | [DSO__ORIG_UBUNTU] = 'u', |
| 1206 | [DSO__ORIG_BUILDID] = 'b', |
| 1207 | [DSO__ORIG_DSO] = 'd', |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1208 | [DSO__ORIG_KMODULE] = 'K', |
Arnaldo Carvalho de Melo | 94cb9e3 | 2009-08-06 14:43:17 -0300 | [diff] [blame] | 1209 | }; |
| 1210 | |
| 1211 | if (self == NULL || self->origin == DSO__ORIG_NOT_FOUND) |
| 1212 | return '!'; |
| 1213 | return origin[self->origin]; |
| 1214 | } |
| 1215 | |
Arnaldo Carvalho de Melo | 6beba7a | 2009-10-21 17:34:06 -0200 | [diff] [blame] | 1216 | int dso__load(struct dso *self, struct map *map, symbol_filter_t filter) |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 1217 | { |
Arnaldo Carvalho de Melo | 4d1e00a | 2009-08-05 19:02:49 -0300 | [diff] [blame] | 1218 | int size = PATH_MAX; |
Arnaldo Carvalho de Melo | c338aee | 2009-11-20 20:51:27 -0200 | [diff] [blame] | 1219 | char *name; |
Arnaldo Carvalho de Melo | d3379ab | 2009-11-18 20:20:50 -0200 | [diff] [blame] | 1220 | u8 build_id[BUILD_ID_SIZE]; |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 1221 | int ret = -1; |
| 1222 | int fd; |
| 1223 | |
Arnaldo Carvalho de Melo | 3610583 | 2009-11-27 16:29:16 -0200 | [diff] [blame] | 1224 | dso__set_loaded(self, map->type); |
Arnaldo Carvalho de Melo | 66bd842 | 2009-10-28 21:51:21 -0200 | [diff] [blame] | 1225 | |
Arnaldo Carvalho de Melo | c338aee | 2009-11-20 20:51:27 -0200 | [diff] [blame] | 1226 | if (self->kernel) |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 1227 | return dso__load_kernel_sym(self, map, kmaps, filter); |
Arnaldo Carvalho de Melo | c338aee | 2009-11-20 20:51:27 -0200 | [diff] [blame] | 1228 | |
| 1229 | name = malloc(size); |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 1230 | if (!name) |
| 1231 | return -1; |
| 1232 | |
Arnaldo Carvalho de Melo | 30d7a77 | 2009-07-02 21:24:14 -0300 | [diff] [blame] | 1233 | self->adjust_symbols = 0; |
Arnaldo Carvalho de Melo | f5812a7 | 2009-06-30 11:43:17 -0300 | [diff] [blame] | 1234 | |
Arnaldo Carvalho de Melo | 94cb9e3 | 2009-08-06 14:43:17 -0300 | [diff] [blame] | 1235 | if (strncmp(self->name, "/tmp/perf-", 10) == 0) { |
Arnaldo Carvalho de Melo | 6beba7a | 2009-10-21 17:34:06 -0200 | [diff] [blame] | 1236 | ret = dso__load_perf_map(self, map, filter); |
Arnaldo Carvalho de Melo | 94cb9e3 | 2009-08-06 14:43:17 -0300 | [diff] [blame] | 1237 | self->origin = ret > 0 ? DSO__ORIG_JAVA_JIT : |
| 1238 | DSO__ORIG_NOT_FOUND; |
| 1239 | return ret; |
| 1240 | } |
| 1241 | |
| 1242 | self->origin = DSO__ORIG_FEDORA - 1; |
Pekka Enberg | 80d496b | 2009-06-08 21:12:48 +0300 | [diff] [blame] | 1243 | |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 1244 | more: |
| 1245 | do { |
Arnaldo Carvalho de Melo | 94cb9e3 | 2009-08-06 14:43:17 -0300 | [diff] [blame] | 1246 | self->origin++; |
| 1247 | switch (self->origin) { |
| 1248 | case DSO__ORIG_FEDORA: |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1249 | snprintf(name, size, "/usr/lib/debug%s.debug", |
| 1250 | self->long_name); |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 1251 | break; |
Arnaldo Carvalho de Melo | 94cb9e3 | 2009-08-06 14:43:17 -0300 | [diff] [blame] | 1252 | case DSO__ORIG_UBUNTU: |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1253 | snprintf(name, size, "/usr/lib/debug%s", |
| 1254 | self->long_name); |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 1255 | break; |
Arnaldo Carvalho de Melo | 94cb9e3 | 2009-08-06 14:43:17 -0300 | [diff] [blame] | 1256 | case DSO__ORIG_BUILDID: |
Arnaldo Carvalho de Melo | d3379ab | 2009-11-18 20:20:50 -0200 | [diff] [blame] | 1257 | if (filename__read_build_id(self->long_name, build_id, |
| 1258 | sizeof(build_id))) { |
| 1259 | char build_id_hex[BUILD_ID_SIZE * 2 + 1]; |
| 1260 | |
| 1261 | build_id__sprintf(build_id, sizeof(build_id), |
| 1262 | build_id_hex); |
Arnaldo Carvalho de Melo | 4d1e00a | 2009-08-05 19:02:49 -0300 | [diff] [blame] | 1263 | snprintf(name, size, |
| 1264 | "/usr/lib/debug/.build-id/%.2s/%s.debug", |
Arnaldo Carvalho de Melo | d3379ab | 2009-11-18 20:20:50 -0200 | [diff] [blame] | 1265 | build_id_hex, build_id_hex + 2); |
| 1266 | if (self->has_build_id) |
| 1267 | goto compare_build_id; |
| 1268 | break; |
Arnaldo Carvalho de Melo | 4d1e00a | 2009-08-05 19:02:49 -0300 | [diff] [blame] | 1269 | } |
Arnaldo Carvalho de Melo | 94cb9e3 | 2009-08-06 14:43:17 -0300 | [diff] [blame] | 1270 | self->origin++; |
Arnaldo Carvalho de Melo | 4d1e00a | 2009-08-05 19:02:49 -0300 | [diff] [blame] | 1271 | /* Fall thru */ |
Arnaldo Carvalho de Melo | 94cb9e3 | 2009-08-06 14:43:17 -0300 | [diff] [blame] | 1272 | case DSO__ORIG_DSO: |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1273 | snprintf(name, size, "%s", self->long_name); |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 1274 | break; |
| 1275 | |
| 1276 | default: |
| 1277 | goto out; |
| 1278 | } |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 1279 | |
Arnaldo Carvalho de Melo | 8d06367 | 2009-11-04 18:50:43 -0200 | [diff] [blame] | 1280 | if (self->has_build_id) { |
Arnaldo Carvalho de Melo | d3379ab | 2009-11-18 20:20:50 -0200 | [diff] [blame] | 1281 | if (filename__read_build_id(name, build_id, |
| 1282 | sizeof(build_id)) < 0) |
Arnaldo Carvalho de Melo | 8d06367 | 2009-11-04 18:50:43 -0200 | [diff] [blame] | 1283 | goto more; |
Arnaldo Carvalho de Melo | 8d06367 | 2009-11-04 18:50:43 -0200 | [diff] [blame] | 1284 | compare_build_id: |
Arnaldo Carvalho de Melo | 78075ca | 2009-11-20 20:51:26 -0200 | [diff] [blame] | 1285 | if (!dso__build_id_equal(self, build_id)) |
Arnaldo Carvalho de Melo | 8d06367 | 2009-11-04 18:50:43 -0200 | [diff] [blame] | 1286 | goto more; |
| 1287 | } |
| 1288 | |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 1289 | fd = open(name, O_RDONLY); |
| 1290 | } while (fd < 0); |
| 1291 | |
Arnaldo Carvalho de Melo | 95011c6 | 2009-11-27 16:29:20 -0200 | [diff] [blame] | 1292 | ret = dso__load_sym(self, map, NULL, name, fd, filter, 0, 0); |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 1293 | close(fd); |
| 1294 | |
| 1295 | /* |
| 1296 | * Some people seem to have debuginfo files _WITHOUT_ debug info!?!? |
| 1297 | */ |
| 1298 | if (!ret) |
| 1299 | goto more; |
| 1300 | |
Arnaldo Carvalho de Melo | a25e46c | 2009-07-11 12:18:36 -0300 | [diff] [blame] | 1301 | if (ret > 0) { |
Arnaldo Carvalho de Melo | 8216416 | 2009-11-16 13:48:11 -0200 | [diff] [blame] | 1302 | int nr_plt = dso__synthesize_plt_symbols(self, map, filter); |
Arnaldo Carvalho de Melo | a25e46c | 2009-07-11 12:18:36 -0300 | [diff] [blame] | 1303 | if (nr_plt > 0) |
| 1304 | ret += nr_plt; |
| 1305 | } |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 1306 | out: |
| 1307 | free(name); |
Arnaldo Carvalho de Melo | 1340e6b | 2009-08-11 17:04:36 -0300 | [diff] [blame] | 1308 | if (ret < 0 && strstr(self->name, " (deleted)") != NULL) |
| 1309 | return 0; |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 1310 | return ret; |
| 1311 | } |
| 1312 | |
Arnaldo Carvalho de Melo | 79406cd | 2009-12-11 18:50:22 -0200 | [diff] [blame^] | 1313 | struct map *map_groups__find_by_name(struct map_groups *self, |
| 1314 | enum map_type type, const char *name) |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1315 | { |
| 1316 | struct rb_node *nd; |
| 1317 | |
Arnaldo Carvalho de Melo | 79406cd | 2009-12-11 18:50:22 -0200 | [diff] [blame^] | 1318 | for (nd = rb_first(&self->maps[type]); nd; nd = rb_next(nd)) { |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1319 | struct map *map = rb_entry(nd, struct map, rb_node); |
| 1320 | |
| 1321 | if (map->dso && strcmp(map->dso->name, name) == 0) |
| 1322 | return map; |
| 1323 | } |
| 1324 | |
| 1325 | return NULL; |
| 1326 | } |
| 1327 | |
Arnaldo Carvalho de Melo | c338aee | 2009-11-20 20:51:27 -0200 | [diff] [blame] | 1328 | static int dsos__set_modules_path_dir(char *dirname) |
Mike Galbraith | 6cfcc53 | 2009-07-02 08:08:36 +0200 | [diff] [blame] | 1329 | { |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1330 | struct dirent *dent; |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1331 | DIR *dir = opendir(dirname); |
Mike Galbraith | 6cfcc53 | 2009-07-02 08:08:36 +0200 | [diff] [blame] | 1332 | |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1333 | if (!dir) { |
Arnaldo Carvalho de Melo | 87f8ea4 | 2009-11-22 13:21:41 -0200 | [diff] [blame] | 1334 | pr_debug("%s: cannot open %s dir\n", __func__, dirname); |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1335 | return -1; |
Mike Galbraith | 6cfcc53 | 2009-07-02 08:08:36 +0200 | [diff] [blame] | 1336 | } |
| 1337 | |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1338 | while ((dent = readdir(dir)) != NULL) { |
| 1339 | char path[PATH_MAX]; |
Mike Galbraith | 6cfcc53 | 2009-07-02 08:08:36 +0200 | [diff] [blame] | 1340 | |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1341 | if (dent->d_type == DT_DIR) { |
| 1342 | if (!strcmp(dent->d_name, ".") || |
| 1343 | !strcmp(dent->d_name, "..")) |
| 1344 | continue; |
Mike Galbraith | 6cfcc53 | 2009-07-02 08:08:36 +0200 | [diff] [blame] | 1345 | |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1346 | snprintf(path, sizeof(path), "%s/%s", |
| 1347 | dirname, dent->d_name); |
Arnaldo Carvalho de Melo | c338aee | 2009-11-20 20:51:27 -0200 | [diff] [blame] | 1348 | if (dsos__set_modules_path_dir(path) < 0) |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1349 | goto failure; |
| 1350 | } else { |
| 1351 | char *dot = strrchr(dent->d_name, '.'), |
| 1352 | dso_name[PATH_MAX]; |
| 1353 | struct map *map; |
Arnaldo Carvalho de Melo | cfc10d3 | 2009-11-17 15:40:53 -0200 | [diff] [blame] | 1354 | char *long_name; |
Mike Galbraith | 6cfcc53 | 2009-07-02 08:08:36 +0200 | [diff] [blame] | 1355 | |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1356 | if (dot == NULL || strcmp(dot, ".ko")) |
| 1357 | continue; |
| 1358 | snprintf(dso_name, sizeof(dso_name), "[%.*s]", |
| 1359 | (int)(dot - dent->d_name), dent->d_name); |
Mike Galbraith | 6cfcc53 | 2009-07-02 08:08:36 +0200 | [diff] [blame] | 1360 | |
Arnaldo Carvalho de Melo | a2a99e8 | 2009-10-05 14:26:18 -0300 | [diff] [blame] | 1361 | strxfrchar(dso_name, '-', '_'); |
Arnaldo Carvalho de Melo | 79406cd | 2009-12-11 18:50:22 -0200 | [diff] [blame^] | 1362 | map = map_groups__find_by_name(kmaps, MAP__FUNCTION, dso_name); |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1363 | if (map == NULL) |
| 1364 | continue; |
Mike Galbraith | 6cfcc53 | 2009-07-02 08:08:36 +0200 | [diff] [blame] | 1365 | |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1366 | snprintf(path, sizeof(path), "%s/%s", |
| 1367 | dirname, dent->d_name); |
Mike Galbraith | 6cfcc53 | 2009-07-02 08:08:36 +0200 | [diff] [blame] | 1368 | |
Arnaldo Carvalho de Melo | cfc10d3 | 2009-11-17 15:40:53 -0200 | [diff] [blame] | 1369 | long_name = strdup(path); |
| 1370 | if (long_name == NULL) |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1371 | goto failure; |
Arnaldo Carvalho de Melo | cfc10d3 | 2009-11-17 15:40:53 -0200 | [diff] [blame] | 1372 | dso__set_long_name(map->dso, long_name); |
Mike Galbraith | 6cfcc53 | 2009-07-02 08:08:36 +0200 | [diff] [blame] | 1373 | } |
Mike Galbraith | 6cfcc53 | 2009-07-02 08:08:36 +0200 | [diff] [blame] | 1374 | } |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1375 | |
Arnaldo Carvalho de Melo | c338aee | 2009-11-20 20:51:27 -0200 | [diff] [blame] | 1376 | return 0; |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1377 | failure: |
| 1378 | closedir(dir); |
| 1379 | return -1; |
Mike Galbraith | 6cfcc53 | 2009-07-02 08:08:36 +0200 | [diff] [blame] | 1380 | } |
| 1381 | |
Arnaldo Carvalho de Melo | c338aee | 2009-11-20 20:51:27 -0200 | [diff] [blame] | 1382 | static int dsos__set_modules_path(void) |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1383 | { |
| 1384 | struct utsname uts; |
| 1385 | char modules_path[PATH_MAX]; |
| 1386 | |
| 1387 | if (uname(&uts) < 0) |
| 1388 | return -1; |
| 1389 | |
| 1390 | snprintf(modules_path, sizeof(modules_path), "/lib/modules/%s/kernel", |
| 1391 | uts.release); |
| 1392 | |
Arnaldo Carvalho de Melo | c338aee | 2009-11-20 20:51:27 -0200 | [diff] [blame] | 1393 | return dsos__set_modules_path_dir(modules_path); |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1394 | } |
| 1395 | |
| 1396 | /* |
| 1397 | * Constructor variant for modules (where we know from /proc/modules where |
| 1398 | * they are loaded) and for vmlinux, where only after we load all the |
| 1399 | * symbols we'll know where it starts and ends. |
| 1400 | */ |
Arnaldo Carvalho de Melo | 3610583 | 2009-11-27 16:29:16 -0200 | [diff] [blame] | 1401 | static struct map *map__new2(u64 start, struct dso *dso, enum map_type type) |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1402 | { |
| 1403 | struct map *self = malloc(sizeof(*self)); |
| 1404 | |
| 1405 | if (self != NULL) { |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1406 | /* |
Arnaldo Carvalho de Melo | afb7b4f | 2009-10-30 16:28:23 -0200 | [diff] [blame] | 1407 | * ->end will be filled after we load all the symbols |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1408 | */ |
Arnaldo Carvalho de Melo | 3610583 | 2009-11-27 16:29:16 -0200 | [diff] [blame] | 1409 | map__init(self, type, start, 0, 0, dso); |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1410 | } |
Arnaldo Carvalho de Melo | afb7b4f | 2009-10-30 16:28:23 -0200 | [diff] [blame] | 1411 | |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1412 | return self; |
| 1413 | } |
| 1414 | |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 1415 | static int map_groups__create_module_maps(struct map_groups *self) |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1416 | { |
| 1417 | char *line = NULL; |
| 1418 | size_t n; |
| 1419 | FILE *file = fopen("/proc/modules", "r"); |
| 1420 | struct map *map; |
| 1421 | |
| 1422 | if (file == NULL) |
| 1423 | return -1; |
| 1424 | |
| 1425 | while (!feof(file)) { |
| 1426 | char name[PATH_MAX]; |
| 1427 | u64 start; |
| 1428 | struct dso *dso; |
| 1429 | char *sep; |
| 1430 | int line_len; |
| 1431 | |
| 1432 | line_len = getline(&line, &n, file); |
| 1433 | if (line_len < 0) |
| 1434 | break; |
| 1435 | |
| 1436 | if (!line) |
| 1437 | goto out_failure; |
| 1438 | |
| 1439 | line[--line_len] = '\0'; /* \n */ |
| 1440 | |
| 1441 | sep = strrchr(line, 'x'); |
| 1442 | if (sep == NULL) |
| 1443 | continue; |
| 1444 | |
| 1445 | hex2u64(sep + 1, &start); |
| 1446 | |
| 1447 | sep = strchr(line, ' '); |
| 1448 | if (sep == NULL) |
| 1449 | continue; |
| 1450 | |
| 1451 | *sep = '\0'; |
| 1452 | |
| 1453 | snprintf(name, sizeof(name), "[%s]", line); |
Arnaldo Carvalho de Melo | 00a192b | 2009-10-30 16:28:24 -0200 | [diff] [blame] | 1454 | dso = dso__new(name); |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1455 | |
| 1456 | if (dso == NULL) |
| 1457 | goto out_delete_line; |
| 1458 | |
Arnaldo Carvalho de Melo | 3610583 | 2009-11-27 16:29:16 -0200 | [diff] [blame] | 1459 | map = map__new2(start, dso, MAP__FUNCTION); |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1460 | if (map == NULL) { |
| 1461 | dso__delete(dso); |
| 1462 | goto out_delete_line; |
| 1463 | } |
| 1464 | |
Arnaldo Carvalho de Melo | f1617b4 | 2009-11-18 20:20:52 -0200 | [diff] [blame] | 1465 | snprintf(name, sizeof(name), |
| 1466 | "/sys/module/%s/notes/.note.gnu.build-id", line); |
| 1467 | if (sysfs__read_build_id(name, dso->build_id, |
| 1468 | sizeof(dso->build_id)) == 0) |
| 1469 | dso->has_build_id = true; |
| 1470 | |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1471 | dso->origin = DSO__ORIG_KMODULE; |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 1472 | map_groups__insert(self, map); |
Arnaldo Carvalho de Melo | b0da954 | 2009-11-27 16:29:14 -0200 | [diff] [blame] | 1473 | dsos__add(&dsos__kernel, dso); |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1474 | } |
| 1475 | |
| 1476 | free(line); |
| 1477 | fclose(file); |
| 1478 | |
Arnaldo Carvalho de Melo | c338aee | 2009-11-20 20:51:27 -0200 | [diff] [blame] | 1479 | return dsos__set_modules_path(); |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1480 | |
| 1481 | out_delete_line: |
| 1482 | free(line); |
| 1483 | out_failure: |
| 1484 | return -1; |
| 1485 | } |
| 1486 | |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 1487 | static int dso__load_vmlinux(struct dso *self, struct map *map, |
| 1488 | struct map_groups *mg, |
Arnaldo Carvalho de Melo | 6beba7a | 2009-10-21 17:34:06 -0200 | [diff] [blame] | 1489 | const char *vmlinux, symbol_filter_t filter) |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 1490 | { |
Arnaldo Carvalho de Melo | fbd733b | 2009-11-20 20:51:28 -0200 | [diff] [blame] | 1491 | int err = -1, fd; |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 1492 | |
Arnaldo Carvalho de Melo | fbd733b | 2009-11-20 20:51:28 -0200 | [diff] [blame] | 1493 | if (self->has_build_id) { |
| 1494 | u8 build_id[BUILD_ID_SIZE]; |
Arnaldo Carvalho de Melo | 66bd842 | 2009-10-28 21:51:21 -0200 | [diff] [blame] | 1495 | |
Arnaldo Carvalho de Melo | fbd733b | 2009-11-20 20:51:28 -0200 | [diff] [blame] | 1496 | if (filename__read_build_id(vmlinux, build_id, |
| 1497 | sizeof(build_id)) < 0) { |
| 1498 | pr_debug("No build_id in %s, ignoring it\n", vmlinux); |
| 1499 | return -1; |
| 1500 | } |
| 1501 | if (!dso__build_id_equal(self, build_id)) { |
| 1502 | char expected_build_id[BUILD_ID_SIZE * 2 + 1], |
| 1503 | vmlinux_build_id[BUILD_ID_SIZE * 2 + 1]; |
| 1504 | |
| 1505 | build_id__sprintf(self->build_id, |
| 1506 | sizeof(self->build_id), |
| 1507 | expected_build_id); |
| 1508 | build_id__sprintf(build_id, sizeof(build_id), |
| 1509 | vmlinux_build_id); |
| 1510 | pr_debug("build_id in %s is %s while expected is %s, " |
| 1511 | "ignoring it\n", vmlinux, vmlinux_build_id, |
| 1512 | expected_build_id); |
| 1513 | return -1; |
| 1514 | } |
| 1515 | } |
| 1516 | |
| 1517 | fd = open(vmlinux, O_RDONLY); |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 1518 | if (fd < 0) |
| 1519 | return -1; |
| 1520 | |
Arnaldo Carvalho de Melo | 3610583 | 2009-11-27 16:29:16 -0200 | [diff] [blame] | 1521 | dso__set_loaded(self, map->type); |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 1522 | err = dso__load_sym(self, map, mg, self->long_name, fd, filter, 1, 0); |
Arnaldo Carvalho de Melo | a2928c4 | 2009-05-28 14:55:04 -0300 | [diff] [blame] | 1523 | close(fd); |
| 1524 | |
| 1525 | return err; |
| 1526 | } |
| 1527 | |
Arnaldo Carvalho de Melo | c338aee | 2009-11-20 20:51:27 -0200 | [diff] [blame] | 1528 | static int dso__load_kernel_sym(struct dso *self, struct map *map, |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 1529 | struct map_groups *mg, symbol_filter_t filter) |
Arnaldo Carvalho de Melo | a827c87 | 2009-05-28 14:55:19 -0300 | [diff] [blame] | 1530 | { |
Arnaldo Carvalho de Melo | cc612d8 | 2009-11-23 16:39:10 -0200 | [diff] [blame] | 1531 | int err; |
| 1532 | bool is_kallsyms; |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1533 | |
Arnaldo Carvalho de Melo | cc612d8 | 2009-11-23 16:39:10 -0200 | [diff] [blame] | 1534 | if (vmlinux_path != NULL) { |
| 1535 | int i; |
| 1536 | pr_debug("Looking at the vmlinux_path (%d entries long)\n", |
| 1537 | vmlinux_path__nr_entries); |
| 1538 | for (i = 0; i < vmlinux_path__nr_entries; ++i) { |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 1539 | err = dso__load_vmlinux(self, map, mg, |
Arnaldo Carvalho de Melo | 95011c6 | 2009-11-27 16:29:20 -0200 | [diff] [blame] | 1540 | vmlinux_path[i], filter); |
Arnaldo Carvalho de Melo | cc612d8 | 2009-11-23 16:39:10 -0200 | [diff] [blame] | 1541 | if (err > 0) { |
| 1542 | pr_debug("Using %s for symbols\n", |
| 1543 | vmlinux_path[i]); |
| 1544 | dso__set_long_name(self, |
| 1545 | strdup(vmlinux_path[i])); |
| 1546 | goto out_fixup; |
| 1547 | } |
| 1548 | } |
| 1549 | } |
| 1550 | |
| 1551 | is_kallsyms = self->long_name[0] == '['; |
| 1552 | if (is_kallsyms) |
| 1553 | goto do_kallsyms; |
| 1554 | |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 1555 | err = dso__load_vmlinux(self, map, mg, self->long_name, filter); |
Arnaldo Carvalho de Melo | ef6ae72 | 2009-11-20 20:51:29 -0200 | [diff] [blame] | 1556 | if (err <= 0) { |
Arnaldo Carvalho de Melo | cc612d8 | 2009-11-23 16:39:10 -0200 | [diff] [blame] | 1557 | pr_info("The file %s cannot be used, " |
| 1558 | "trying to use /proc/kallsyms...", self->long_name); |
Arnaldo Carvalho de Melo | cc612d8 | 2009-11-23 16:39:10 -0200 | [diff] [blame] | 1559 | do_kallsyms: |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 1560 | err = dso__load_kallsyms(self, map, mg, filter); |
Arnaldo Carvalho de Melo | cc612d8 | 2009-11-23 16:39:10 -0200 | [diff] [blame] | 1561 | if (err > 0 && !is_kallsyms) |
Arnaldo Carvalho de Melo | ef6ae72 | 2009-11-20 20:51:29 -0200 | [diff] [blame] | 1562 | dso__set_long_name(self, strdup("[kernel.kallsyms]")); |
| 1563 | } |
Arnaldo Carvalho de Melo | a827c87 | 2009-05-28 14:55:19 -0300 | [diff] [blame] | 1564 | |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1565 | if (err > 0) { |
Arnaldo Carvalho de Melo | cc612d8 | 2009-11-23 16:39:10 -0200 | [diff] [blame] | 1566 | out_fixup: |
Arnaldo Carvalho de Melo | 6a4694a | 2009-11-27 16:29:17 -0200 | [diff] [blame] | 1567 | map__fixup_start(map); |
| 1568 | map__fixup_end(map); |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 1569 | } |
Arnaldo Carvalho de Melo | 94cb9e3 | 2009-08-06 14:43:17 -0300 | [diff] [blame] | 1570 | |
Arnaldo Carvalho de Melo | a827c87 | 2009-05-28 14:55:19 -0300 | [diff] [blame] | 1571 | return err; |
| 1572 | } |
| 1573 | |
Arnaldo Carvalho de Melo | b0da954 | 2009-11-27 16:29:14 -0200 | [diff] [blame] | 1574 | LIST_HEAD(dsos__user); |
| 1575 | LIST_HEAD(dsos__kernel); |
Arnaldo Carvalho de Melo | cc612d8 | 2009-11-23 16:39:10 -0200 | [diff] [blame] | 1576 | struct dso *vdso; |
Frederic Weisbecker | cd84c2a | 2009-08-12 10:03:49 +0200 | [diff] [blame] | 1577 | |
Arnaldo Carvalho de Melo | b0da954 | 2009-11-27 16:29:14 -0200 | [diff] [blame] | 1578 | static void dsos__add(struct list_head *head, struct dso *dso) |
Frederic Weisbecker | cd84c2a | 2009-08-12 10:03:49 +0200 | [diff] [blame] | 1579 | { |
Arnaldo Carvalho de Melo | b0da954 | 2009-11-27 16:29:14 -0200 | [diff] [blame] | 1580 | list_add_tail(&dso->node, head); |
Frederic Weisbecker | cd84c2a | 2009-08-12 10:03:49 +0200 | [diff] [blame] | 1581 | } |
| 1582 | |
Arnaldo Carvalho de Melo | b0da954 | 2009-11-27 16:29:14 -0200 | [diff] [blame] | 1583 | static struct dso *dsos__find(struct list_head *head, const char *name) |
Frederic Weisbecker | cd84c2a | 2009-08-12 10:03:49 +0200 | [diff] [blame] | 1584 | { |
| 1585 | struct dso *pos; |
| 1586 | |
Arnaldo Carvalho de Melo | b0da954 | 2009-11-27 16:29:14 -0200 | [diff] [blame] | 1587 | list_for_each_entry(pos, head, node) |
Frederic Weisbecker | cd84c2a | 2009-08-12 10:03:49 +0200 | [diff] [blame] | 1588 | if (strcmp(pos->name, name) == 0) |
| 1589 | return pos; |
| 1590 | return NULL; |
| 1591 | } |
| 1592 | |
Arnaldo Carvalho de Melo | 00a192b | 2009-10-30 16:28:24 -0200 | [diff] [blame] | 1593 | struct dso *dsos__findnew(const char *name) |
Frederic Weisbecker | cd84c2a | 2009-08-12 10:03:49 +0200 | [diff] [blame] | 1594 | { |
Arnaldo Carvalho de Melo | b0da954 | 2009-11-27 16:29:14 -0200 | [diff] [blame] | 1595 | struct dso *dso = dsos__find(&dsos__user, name); |
Frederic Weisbecker | cd84c2a | 2009-08-12 10:03:49 +0200 | [diff] [blame] | 1596 | |
Arnaldo Carvalho de Melo | e420499 | 2009-10-20 14:25:40 -0200 | [diff] [blame] | 1597 | if (!dso) { |
Arnaldo Carvalho de Melo | 00a192b | 2009-10-30 16:28:24 -0200 | [diff] [blame] | 1598 | dso = dso__new(name); |
Arnaldo Carvalho de Melo | cfc10d3 | 2009-11-17 15:40:53 -0200 | [diff] [blame] | 1599 | if (dso != NULL) { |
Arnaldo Carvalho de Melo | b0da954 | 2009-11-27 16:29:14 -0200 | [diff] [blame] | 1600 | dsos__add(&dsos__user, dso); |
Arnaldo Carvalho de Melo | cfc10d3 | 2009-11-17 15:40:53 -0200 | [diff] [blame] | 1601 | dso__set_basename(dso); |
| 1602 | } |
Arnaldo Carvalho de Melo | 66bd842 | 2009-10-28 21:51:21 -0200 | [diff] [blame] | 1603 | } |
Frederic Weisbecker | cd84c2a | 2009-08-12 10:03:49 +0200 | [diff] [blame] | 1604 | |
| 1605 | return dso; |
Frederic Weisbecker | cd84c2a | 2009-08-12 10:03:49 +0200 | [diff] [blame] | 1606 | } |
| 1607 | |
Arnaldo Carvalho de Melo | b0da954 | 2009-11-27 16:29:14 -0200 | [diff] [blame] | 1608 | static void __dsos__fprintf(struct list_head *head, FILE *fp) |
Frederic Weisbecker | cd84c2a | 2009-08-12 10:03:49 +0200 | [diff] [blame] | 1609 | { |
| 1610 | struct dso *pos; |
| 1611 | |
Arnaldo Carvalho de Melo | 95011c6 | 2009-11-27 16:29:20 -0200 | [diff] [blame] | 1612 | list_for_each_entry(pos, head, node) { |
| 1613 | int i; |
| 1614 | for (i = 0; i < MAP__NR_TYPES; ++i) |
| 1615 | dso__fprintf(pos, i, fp); |
| 1616 | } |
Frederic Weisbecker | cd84c2a | 2009-08-12 10:03:49 +0200 | [diff] [blame] | 1617 | } |
| 1618 | |
Arnaldo Carvalho de Melo | b0da954 | 2009-11-27 16:29:14 -0200 | [diff] [blame] | 1619 | void dsos__fprintf(FILE *fp) |
| 1620 | { |
| 1621 | __dsos__fprintf(&dsos__kernel, fp); |
| 1622 | __dsos__fprintf(&dsos__user, fp); |
| 1623 | } |
| 1624 | |
| 1625 | static size_t __dsos__fprintf_buildid(struct list_head *head, FILE *fp) |
Arnaldo Carvalho de Melo | 9e03eb2 | 2009-11-16 16:32:44 -0200 | [diff] [blame] | 1626 | { |
| 1627 | struct dso *pos; |
| 1628 | size_t ret = 0; |
| 1629 | |
Arnaldo Carvalho de Melo | b0da954 | 2009-11-27 16:29:14 -0200 | [diff] [blame] | 1630 | list_for_each_entry(pos, head, node) { |
Arnaldo Carvalho de Melo | 9e03eb2 | 2009-11-16 16:32:44 -0200 | [diff] [blame] | 1631 | ret += dso__fprintf_buildid(pos, fp); |
Arnaldo Carvalho de Melo | 1124ba7 | 2009-11-16 21:45:25 -0200 | [diff] [blame] | 1632 | ret += fprintf(fp, " %s\n", pos->long_name); |
Arnaldo Carvalho de Melo | 9e03eb2 | 2009-11-16 16:32:44 -0200 | [diff] [blame] | 1633 | } |
| 1634 | return ret; |
| 1635 | } |
| 1636 | |
Arnaldo Carvalho de Melo | b0da954 | 2009-11-27 16:29:14 -0200 | [diff] [blame] | 1637 | size_t dsos__fprintf_buildid(FILE *fp) |
| 1638 | { |
| 1639 | return (__dsos__fprintf_buildid(&dsos__kernel, fp) + |
| 1640 | __dsos__fprintf_buildid(&dsos__user, fp)); |
| 1641 | } |
| 1642 | |
Arnaldo Carvalho de Melo | f1dfa0b | 2009-12-11 14:50:39 -0200 | [diff] [blame] | 1643 | static struct dso *dsos__create_kernel( const char *vmlinux) |
Frederic Weisbecker | cd84c2a | 2009-08-12 10:03:49 +0200 | [diff] [blame] | 1644 | { |
Arnaldo Carvalho de Melo | 95011c6 | 2009-11-27 16:29:20 -0200 | [diff] [blame] | 1645 | struct dso *kernel = dso__new(vmlinux ?: "[kernel.kallsyms]"); |
Frederic Weisbecker | cd84c2a | 2009-08-12 10:03:49 +0200 | [diff] [blame] | 1646 | |
Arnaldo Carvalho de Melo | 2446042 | 2009-11-18 20:20:53 -0200 | [diff] [blame] | 1647 | if (kernel == NULL) |
Arnaldo Carvalho de Melo | f1dfa0b | 2009-12-11 14:50:39 -0200 | [diff] [blame] | 1648 | return NULL; |
Arnaldo Carvalho de Melo | c338aee | 2009-11-20 20:51:27 -0200 | [diff] [blame] | 1649 | |
Arnaldo Carvalho de Melo | 4e06255 | 2009-11-27 16:29:18 -0200 | [diff] [blame] | 1650 | kernel->short_name = "[kernel]"; |
| 1651 | kernel->kernel = 1; |
Arnaldo Carvalho de Melo | 2446042 | 2009-11-18 20:20:53 -0200 | [diff] [blame] | 1652 | |
Arnaldo Carvalho de Melo | 00a192b | 2009-10-30 16:28:24 -0200 | [diff] [blame] | 1653 | vdso = dso__new("[vdso]"); |
Arnaldo Carvalho de Melo | c338aee | 2009-11-20 20:51:27 -0200 | [diff] [blame] | 1654 | if (vdso == NULL) |
Arnaldo Carvalho de Melo | f1dfa0b | 2009-12-11 14:50:39 -0200 | [diff] [blame] | 1655 | goto out_delete_kernel_dso; |
Arnaldo Carvalho de Melo | 3610583 | 2009-11-27 16:29:16 -0200 | [diff] [blame] | 1656 | dso__set_loaded(vdso, MAP__FUNCTION); |
Frederic Weisbecker | cd84c2a | 2009-08-12 10:03:49 +0200 | [diff] [blame] | 1657 | |
Arnaldo Carvalho de Melo | 2446042 | 2009-11-18 20:20:53 -0200 | [diff] [blame] | 1658 | if (sysfs__read_build_id("/sys/kernel/notes", kernel->build_id, |
| 1659 | sizeof(kernel->build_id)) == 0) |
| 1660 | kernel->has_build_id = true; |
| 1661 | |
Arnaldo Carvalho de Melo | b0da954 | 2009-11-27 16:29:14 -0200 | [diff] [blame] | 1662 | dsos__add(&dsos__kernel, kernel); |
| 1663 | dsos__add(&dsos__user, vdso); |
Frederic Weisbecker | cd84c2a | 2009-08-12 10:03:49 +0200 | [diff] [blame] | 1664 | |
Arnaldo Carvalho de Melo | f1dfa0b | 2009-12-11 14:50:39 -0200 | [diff] [blame] | 1665 | return kernel; |
Arnaldo Carvalho de Melo | c338aee | 2009-11-20 20:51:27 -0200 | [diff] [blame] | 1666 | |
Arnaldo Carvalho de Melo | c338aee | 2009-11-20 20:51:27 -0200 | [diff] [blame] | 1667 | out_delete_kernel_dso: |
| 1668 | dso__delete(kernel); |
Arnaldo Carvalho de Melo | f1dfa0b | 2009-12-11 14:50:39 -0200 | [diff] [blame] | 1669 | return NULL; |
| 1670 | } |
| 1671 | |
| 1672 | static int map_groups__create_kernel_maps(struct map_groups *self, const char *vmlinux) |
| 1673 | { |
| 1674 | struct map *functions, *variables; |
| 1675 | struct dso *kernel = dsos__create_kernel(vmlinux); |
| 1676 | |
| 1677 | if (kernel == NULL) |
| 1678 | return -1; |
| 1679 | |
| 1680 | functions = map__new2(0, kernel, MAP__FUNCTION); |
| 1681 | if (functions == NULL) |
| 1682 | return -1; |
| 1683 | |
| 1684 | variables = map__new2(0, kernel, MAP__VARIABLE); |
| 1685 | if (variables == NULL) { |
| 1686 | map__delete(functions); |
| 1687 | return -1; |
| 1688 | } |
| 1689 | |
| 1690 | functions->map_ip = functions->unmap_ip = |
| 1691 | variables->map_ip = variables->unmap_ip = identity__map_ip; |
| 1692 | map_groups__insert(self, functions); |
| 1693 | map_groups__insert(self, variables); |
| 1694 | |
| 1695 | return 0; |
Arnaldo Carvalho de Melo | 2446042 | 2009-11-18 20:20:53 -0200 | [diff] [blame] | 1696 | } |
| 1697 | |
Arnaldo Carvalho de Melo | cc612d8 | 2009-11-23 16:39:10 -0200 | [diff] [blame] | 1698 | static void vmlinux_path__exit(void) |
Arnaldo Carvalho de Melo | 2446042 | 2009-11-18 20:20:53 -0200 | [diff] [blame] | 1699 | { |
Arnaldo Carvalho de Melo | cc612d8 | 2009-11-23 16:39:10 -0200 | [diff] [blame] | 1700 | while (--vmlinux_path__nr_entries >= 0) { |
| 1701 | free(vmlinux_path[vmlinux_path__nr_entries]); |
| 1702 | vmlinux_path[vmlinux_path__nr_entries] = NULL; |
| 1703 | } |
| 1704 | |
| 1705 | free(vmlinux_path); |
| 1706 | vmlinux_path = NULL; |
| 1707 | } |
| 1708 | |
| 1709 | static int vmlinux_path__init(void) |
| 1710 | { |
| 1711 | struct utsname uts; |
| 1712 | char bf[PATH_MAX]; |
| 1713 | |
| 1714 | if (uname(&uts) < 0) |
Arnaldo Carvalho de Melo | 2446042 | 2009-11-18 20:20:53 -0200 | [diff] [blame] | 1715 | return -1; |
| 1716 | |
Arnaldo Carvalho de Melo | cc612d8 | 2009-11-23 16:39:10 -0200 | [diff] [blame] | 1717 | vmlinux_path = malloc(sizeof(char *) * 5); |
| 1718 | if (vmlinux_path == NULL) |
| 1719 | return -1; |
| 1720 | |
| 1721 | vmlinux_path[vmlinux_path__nr_entries] = strdup("vmlinux"); |
| 1722 | if (vmlinux_path[vmlinux_path__nr_entries] == NULL) |
| 1723 | goto out_fail; |
| 1724 | ++vmlinux_path__nr_entries; |
| 1725 | vmlinux_path[vmlinux_path__nr_entries] = strdup("/boot/vmlinux"); |
| 1726 | if (vmlinux_path[vmlinux_path__nr_entries] == NULL) |
| 1727 | goto out_fail; |
| 1728 | ++vmlinux_path__nr_entries; |
| 1729 | snprintf(bf, sizeof(bf), "/boot/vmlinux-%s", uts.release); |
| 1730 | vmlinux_path[vmlinux_path__nr_entries] = strdup(bf); |
| 1731 | if (vmlinux_path[vmlinux_path__nr_entries] == NULL) |
| 1732 | goto out_fail; |
| 1733 | ++vmlinux_path__nr_entries; |
| 1734 | snprintf(bf, sizeof(bf), "/lib/modules/%s/build/vmlinux", uts.release); |
| 1735 | vmlinux_path[vmlinux_path__nr_entries] = strdup(bf); |
| 1736 | if (vmlinux_path[vmlinux_path__nr_entries] == NULL) |
| 1737 | goto out_fail; |
| 1738 | ++vmlinux_path__nr_entries; |
| 1739 | snprintf(bf, sizeof(bf), "/usr/lib/debug/lib/modules/%s/vmlinux", |
| 1740 | uts.release); |
| 1741 | vmlinux_path[vmlinux_path__nr_entries] = strdup(bf); |
| 1742 | if (vmlinux_path[vmlinux_path__nr_entries] == NULL) |
| 1743 | goto out_fail; |
| 1744 | ++vmlinux_path__nr_entries; |
| 1745 | |
| 1746 | return 0; |
| 1747 | |
| 1748 | out_fail: |
| 1749 | vmlinux_path__exit(); |
| 1750 | return -1; |
| 1751 | } |
| 1752 | |
Arnaldo Carvalho de Melo | 95011c6 | 2009-11-27 16:29:20 -0200 | [diff] [blame] | 1753 | int symbol__init(struct symbol_conf *conf) |
Arnaldo Carvalho de Melo | cc612d8 | 2009-11-23 16:39:10 -0200 | [diff] [blame] | 1754 | { |
Arnaldo Carvalho de Melo | b32d133 | 2009-11-24 12:05:15 -0200 | [diff] [blame] | 1755 | const struct symbol_conf *pconf = conf ?: &symbol_conf__defaults; |
| 1756 | |
Arnaldo Carvalho de Melo | 95011c6 | 2009-11-27 16:29:20 -0200 | [diff] [blame] | 1757 | elf_version(EV_CURRENT); |
Arnaldo Carvalho de Melo | b32d133 | 2009-11-24 12:05:15 -0200 | [diff] [blame] | 1758 | symbol__priv_size = pconf->priv_size; |
Arnaldo Carvalho de Melo | 79406cd | 2009-12-11 18:50:22 -0200 | [diff] [blame^] | 1759 | if (pconf->sort_by_name) |
| 1760 | symbol__priv_size += (sizeof(struct symbol_name_rb_node) - |
| 1761 | sizeof(struct symbol)); |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 1762 | map_groups__init(kmaps); |
Arnaldo Carvalho de Melo | b32d133 | 2009-11-24 12:05:15 -0200 | [diff] [blame] | 1763 | |
| 1764 | if (pconf->try_vmlinux_path && vmlinux_path__init() < 0) |
Arnaldo Carvalho de Melo | cc612d8 | 2009-11-23 16:39:10 -0200 | [diff] [blame] | 1765 | return -1; |
| 1766 | |
Arnaldo Carvalho de Melo | f1dfa0b | 2009-12-11 14:50:39 -0200 | [diff] [blame] | 1767 | if (map_groups__create_kernel_maps(kmaps, pconf->vmlinux_name) < 0) { |
Arnaldo Carvalho de Melo | cc612d8 | 2009-11-23 16:39:10 -0200 | [diff] [blame] | 1768 | vmlinux_path__exit(); |
| 1769 | return -1; |
| 1770 | } |
| 1771 | |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 1772 | kmaps->use_modules = pconf->use_modules; |
| 1773 | if (pconf->use_modules && map_groups__create_module_maps(kmaps) < 0) |
Arnaldo Carvalho de Melo | 87f8ea4 | 2009-11-22 13:21:41 -0200 | [diff] [blame] | 1774 | pr_debug("Failed to load list of modules in use, " |
| 1775 | "continuing...\n"); |
Arnaldo Carvalho de Melo | 90c8321 | 2009-11-21 14:31:24 -0200 | [diff] [blame] | 1776 | /* |
| 1777 | * Now that we have all the maps created, just set the ->end of them: |
| 1778 | */ |
Arnaldo Carvalho de Melo | 9958e1f | 2009-12-11 14:50:36 -0200 | [diff] [blame] | 1779 | map_groups__fixup_end(kmaps); |
Arnaldo Carvalho de Melo | 6671cb1 | 2009-11-20 20:51:24 -0200 | [diff] [blame] | 1780 | return 0; |
Frederic Weisbecker | cd84c2a | 2009-08-12 10:03:49 +0200 | [diff] [blame] | 1781 | } |