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