4 * Babeltrace - Executable and Shared Object Debug Info Reader
6 * Copyright 2015 Antoine Busque <abusque@efficios.com>
8 * Author: Antoine Busque <abusque@efficios.com>
10 * Permission is hereby granted, free of charge, to any person obtaining a copy
11 * of this software and associated documentation files (the "Software"), to deal
12 * in the Software without restriction, including without limitation the rights
13 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
14 * copies of the Software, and to permit persons to whom the Software is
15 * furnished to do so, subject to the following conditions:
17 * The above copyright notice and this permission notice shall be included in
18 * all copies or substantial portions of the Software.
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
23 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
39 #include <babeltrace/dwarf.h>
40 #include <babeltrace/bin-info.h>
41 #include <babeltrace/crc32.h>
42 #include <babeltrace/babeltrace-internal.h>
43 #include <babeltrace/utils.h>
47 * An address printed in hex is at most 20 bytes (16 for 64-bits +
48 * leading 0x + optional leading '+' if addr is an offset + null
51 #define ADDR_STR_LEN 20
54 int bin_info_init(void)
58 if (elf_version(EV_CURRENT
) == EV_NONE
) {
59 printf_debug("ELF library initialization failed: %s\n",
68 struct bin_info
*bin_info_create(const char *path
, uint64_t low_addr
,
69 uint64_t memsz
, bool is_pic
)
71 struct bin_info
*bin
= NULL
;
77 bin
= g_new0(struct bin_info
, 1);
82 if (opt_debug_info_target_prefix
) {
83 bin
->elf_path
= g_build_path("/", opt_debug_info_target_prefix
,
86 bin
->elf_path
= strdup(path
);
95 bin
->low_addr
= low_addr
;
96 bin
->high_addr
= bin
->low_addr
+ bin
->memsz
;
101 bin_info_destroy(bin
);
106 void bin_info_destroy(struct bin_info
*bin
)
112 dwarf_end(bin
->dwarf_info
);
115 free(bin
->dwarf_path
);
117 free(bin
->dbg_link_filename
);
119 elf_end(bin
->elf_file
);
122 close(bin
->dwarf_fd
);
129 int bin_info_set_build_id(struct bin_info
*bin
, uint8_t *build_id
,
132 if (!bin
|| !build_id
) {
136 bin
->build_id
= malloc(build_id_len
);
137 if (!bin
->build_id
) {
141 memcpy(bin
->build_id
, build_id
, build_id_len
);
142 bin
->build_id_len
= build_id_len
;
145 * Reset the is_elf_only flag in case it had been set
146 * previously, because we might find separate debug info using
147 * the new build id information.
149 bin
->is_elf_only
= false;
159 int bin_info_set_debug_link(struct bin_info
*bin
, char *filename
, uint32_t crc
)
161 if (!bin
|| !filename
) {
165 bin
->dbg_link_filename
= strdup(filename
);
166 if (!bin
->dbg_link_filename
) {
170 bin
->dbg_link_crc
= crc
;
173 * Reset the is_elf_only flag in case it had been set
174 * previously, because we might find separate debug info using
175 * the new build id information.
177 bin
->is_elf_only
= false;
187 * Tries to read DWARF info from the location given by path, and
188 * attach it to the given bin_info instance if it exists.
190 * @param bin bin_info instance for which to set DWARF info
191 * @param path Presumed location of the DWARF info
192 * @returns 0 on success, negative value on failure
195 int bin_info_set_dwarf_info_from_path(struct bin_info
*bin
, char *path
)
197 int fd
= -1, ret
= 0;
198 struct bt_dwarf_cu
*cu
= NULL
;
199 Dwarf
*dwarf_info
= NULL
;
205 fd
= open(path
, O_RDONLY
);
211 dwarf_info
= dwarf_begin(fd
, DWARF_C_READ
);
217 * Check if the dwarf info has any CU. If not, the
218 * executable's object file contains no DWARF info.
220 cu
= bt_dwarf_cu_create(dwarf_info
);
225 ret
= bt_dwarf_cu_next(cu
);
231 bin
->dwarf_path
= strdup(path
);
232 if (!bin
->dwarf_path
) {
235 bin
->dwarf_info
= dwarf_info
;
245 dwarf_end(dwarf_info
);
253 * Try to set the dwarf_info for a given bin_info instance via the
256 * @param bin bin_info instance for which to retrieve the
257 * DWARF info via build ID
258 * @returns 0 on success (i.e. dwarf_info set), -1 on failure
261 int bin_info_set_dwarf_info_build_id(struct bin_info
*bin
)
264 char *path
= NULL
, *build_id_file
= NULL
;
265 const char *dbg_dir
= NULL
;
266 size_t build_id_file_len
;
268 if (!bin
|| !bin
->build_id
) {
272 dbg_dir
= opt_debug_info_dir
? : DEFAULT_DEBUG_DIR
;
274 /* 2 characters per byte printed in hex, +1 for '/' and +1 for '\0' */
275 build_id_file_len
= (2 * bin
->build_id_len
) + 1 +
276 strlen(BUILD_ID_SUFFIX
) + 1;
277 build_id_file
= malloc(build_id_file_len
);
278 if (!build_id_file
) {
282 snprintf(build_id_file
, 4, "%02x/", bin
->build_id
[0]);
283 for (i
= 1; i
< bin
->build_id_len
; ++i
) {
284 int path_idx
= 3 + 2 * (i
- 1);
286 snprintf(&build_id_file
[path_idx
], 3, "%02x", bin
->build_id
[i
]);
288 strcat(build_id_file
, BUILD_ID_SUFFIX
);
290 path
= g_build_path("/", dbg_dir
, BUILD_ID_SUBDIR
, build_id_file
, NULL
);
295 ret
= bin_info_set_dwarf_info_from_path(bin
, path
);
312 * Tests whether the file located at path exists and has the expected
315 * This predicate is used when looking up separate debug info via the
316 * GNU debuglink method. The expected crc can be found .gnu_debuglink
317 * section in the original ELF file, along with the filename for the
318 * file containing the debug info.
320 * @param path Full path at which to look for the debug file
321 * @param crc Expected checksum for the debug file
322 * @returns 1 if the file exists and has the correct checksum,
326 int is_valid_debug_file(char *path
, uint32_t crc
)
328 int ret
= 0, fd
= -1;
335 fd
= open(path
, O_RDONLY
);
340 ret
= crc32(fd
, &_crc
);
355 * Try to set the dwarf_info for a given bin_info instance via the
358 * @param bin bin_info instance for which to retrieve the
359 * DWARF info via debug link
360 * @returns 0 on success (i.e. dwarf_info set), -1 on failure
363 int bin_info_set_dwarf_info_debug_link(struct bin_info
*bin
)
366 const char *dbg_dir
= NULL
;
367 char *dir_name
= NULL
, *bin_dir
= NULL
, *path
= NULL
;
368 size_t max_path_len
= 0;
370 if (!bin
|| !bin
->dbg_link_filename
) {
374 dbg_dir
= opt_debug_info_dir
? : DEFAULT_DEBUG_DIR
;
376 dir_name
= dirname(bin
->elf_path
);
381 /* bin_dir is just dir_name with a trailing slash */
382 bin_dir
= malloc(strlen(dir_name
) + 2);
387 strcpy(bin_dir
, dir_name
);
388 strcat(bin_dir
, "/");
390 max_path_len
= strlen(dbg_dir
) + strlen(bin_dir
) +
391 strlen(DEBUG_SUBDIR
) + strlen(bin
->dbg_link_filename
)
393 path
= malloc(max_path_len
);
398 /* First look in the executable's dir */
399 strcpy(path
, bin_dir
);
400 strcat(path
, bin
->dbg_link_filename
);
402 if (is_valid_debug_file(path
, bin
->dbg_link_crc
)) {
406 /* If not found, look in .debug subdir */
407 strcpy(path
, bin_dir
);
408 strcat(path
, DEBUG_SUBDIR
);
409 strcat(path
, bin
->dbg_link_filename
);
411 if (is_valid_debug_file(path
, bin
->dbg_link_crc
)) {
415 /* Lastly, look under the global debug directory */
416 strcpy(path
, dbg_dir
);
417 strcat(path
, bin_dir
);
418 strcat(path
, bin
->dbg_link_filename
);
420 if (is_valid_debug_file(path
, bin
->dbg_link_crc
)) {
433 ret
= bin_info_set_dwarf_info_from_path(bin
, path
);
442 * Initialize the DWARF info for a given executable.
444 * @param bin bin_info instance
445 * @returns 0 on success, negative value on failure
448 int bin_info_set_dwarf_info(struct bin_info
*bin
)
457 /* First try to set the DWARF info from the ELF file */
458 ret
= bin_info_set_dwarf_info_from_path(bin
, bin
->elf_path
);
464 * If that fails, try to find separate debug info via build ID
467 ret
= bin_info_set_dwarf_info_build_id(bin
);
472 ret
= bin_info_set_dwarf_info_debug_link(bin
);
482 * Initialize the ELF file for a given executable.
484 * @param bin bin_info instance
485 * @returns 0 on success, negative value on error.
488 int bin_info_set_elf_file(struct bin_info
*bin
)
491 Elf
*elf_file
= NULL
;
497 elf_fd
= open(bin
->elf_path
, O_RDONLY
);
500 printf_verbose("Failed to open %s\n", bin
->elf_path
);
504 elf_file
= elf_begin(elf_fd
, ELF_C_READ
, NULL
);
506 printf_debug("elf_begin failed: %s\n", elf_errmsg(-1));
510 if (elf_kind(elf_file
) != ELF_K_ELF
) {
511 printf_verbose("Error: %s is not an ELF object\n",
516 bin
->elf_fd
= elf_fd
;
517 bin
->elf_file
= elf_file
;
530 void source_location_destroy(struct source_location
*src_loc
)
536 free(src_loc
->filename
);
541 * Append a string representation of an address offset to an existing
544 * On success, the out parameter `result` will contain the base string
545 * followed by the offset string of the form "+0x1234". On failure,
546 * `result` remains unchanged.
548 * @param base_str The string to which to append an offset string
549 * @param low_addr The lower virtual memory address, the base from
550 * which the offset is computed
551 * @param high_addr The higher virtual memory address
552 * @param result Out parameter, the base string followed by the
554 * @returns 0 on success, -1 on failure
557 int bin_info_append_offset_str(const char *base_str
, uint64_t low_addr
,
558 uint64_t high_addr
, char **result
)
562 char *_result
= NULL
;
563 char offset_str
[ADDR_STR_LEN
];
565 if (!base_str
|| !result
) {
569 offset
= high_addr
- low_addr
;
571 _result
= malloc(strlen(base_str
) + ADDR_STR_LEN
);
576 ret
= snprintf(offset_str
, ADDR_STR_LEN
, "+%#0" PRIx64
, offset
);
580 strcpy(_result
, base_str
);
581 strcat(_result
, offset_str
);
592 * Try to find the symbol closest to an address within a given ELF
595 * Only function symbols are taken into account. The symbol's address
596 * must precede `addr`. A symbol with a closer address might exist
597 * after `addr` but is irrelevant because it cannot encompass `addr`.
599 * On success, if found, the out parameters `sym` and `shdr` are
600 * set. On failure or if none are found, they remain unchanged.
602 * @param scn ELF section in which to look for the address
603 * @param addr Virtual memory address for which to find the
604 * nearest function symbol
605 * @param sym Out parameter, the nearest function symbol
606 * @param shdr Out parameter, the section header for scn
607 * @returns 0 on success, -1 on failure
610 int bin_info_get_nearest_symbol_from_section(Elf_Scn
*scn
, uint64_t addr
,
611 GElf_Sym
**sym
, GElf_Shdr
**shdr
)
615 Elf_Data
*data
= NULL
;
616 GElf_Shdr
*_shdr
= NULL
;
617 GElf_Sym
*nearest_sym
= NULL
;
619 if (!scn
|| !sym
|| !shdr
) {
623 _shdr
= g_new0(GElf_Shdr
, 1);
628 _shdr
= gelf_getshdr(scn
, _shdr
);
633 if (_shdr
->sh_type
!= SHT_SYMTAB
) {
635 * We are only interested in symbol table (symtab)
636 * sections, skip this one.
641 data
= elf_getdata(scn
, NULL
);
646 symbol_count
= _shdr
->sh_size
/ _shdr
->sh_entsize
;
648 for (i
= 0; i
< symbol_count
; ++i
) {
649 GElf_Sym
*cur_sym
= NULL
;
651 cur_sym
= g_new0(GElf_Sym
, 1);
655 cur_sym
= gelf_getsym(data
, i
, cur_sym
);
659 if (GELF_ST_TYPE(cur_sym
->st_info
) != STT_FUNC
) {
660 /* We're only interested in the functions. */
665 if (cur_sym
->st_value
<= addr
&&
667 cur_sym
->st_value
> nearest_sym
->st_value
)) {
669 nearest_sym
= cur_sym
;
692 * Get the name of the function containing a given address within an
693 * executable using ELF symbols.
695 * The function name is in fact the name of the nearest ELF symbol,
696 * followed by the offset in bytes between the address and the symbol
697 * (in hex), separated by a '+' character.
699 * If found, the out parameter `func_name` is set on success. On failure,
700 * it remains unchanged.
702 * @param bin bin_info instance for the executable containing
704 * @param addr Virtual memory address for which to find the
706 * @param func_name Out parameter, the function name
707 * @returns 0 on success, -1 on failure
710 int bin_info_lookup_elf_function_name(struct bin_info
*bin
, uint64_t addr
,
714 * TODO (possible optimisation): if an ELF has no symtab
715 * section, it has been stripped. Therefore, it would be wise
716 * to store a flag indicating the stripped status after the
717 * first iteration to prevent subsequent ones.
721 GElf_Sym
*sym
= NULL
;
722 GElf_Shdr
*shdr
= NULL
;
723 char *sym_name
= NULL
;
725 /* Set ELF file if it hasn't been accessed yet. */
726 if (!bin
->elf_file
) {
727 ret
= bin_info_set_elf_file(bin
);
729 /* Failed to set ELF file. */
734 scn
= elf_nextscn(bin
->elf_file
, scn
);
739 while (scn
&& !sym
) {
740 ret
= bin_info_get_nearest_symbol_from_section(
741 scn
, addr
, &sym
, &shdr
);
746 scn
= elf_nextscn(bin
->elf_file
, scn
);
750 sym_name
= elf_strptr(bin
->elf_file
, shdr
->sh_link
,
756 ret
= bin_info_append_offset_str(sym_name
, sym
->st_value
, addr
,
774 * Get the name of the function containing a given address within a
775 * given compile unit (CU).
777 * If found, the out parameter `func_name` is set on success. On
778 * failure, it remains unchanged.
780 * @param cu bt_dwarf_cu instance which may contain the address
781 * @param addr Virtual memory address for which to find the
783 * @param func_name Out parameter, the function name
784 * @returns 0 on success, -1 on failure
787 int bin_info_lookup_cu_function_name(struct bt_dwarf_cu
*cu
, uint64_t addr
,
792 struct bt_dwarf_die
*die
= NULL
;
794 if (!cu
|| !func_name
) {
798 die
= bt_dwarf_die_create(cu
);
803 while (bt_dwarf_die_next(die
) == 0) {
806 ret
= bt_dwarf_die_get_tag(die
, &tag
);
811 if (tag
== DW_TAG_subprogram
) {
812 ret
= bt_dwarf_die_contains_addr(die
, addr
, &found
);
824 uint64_t low_addr
= 0;
825 char *die_name
= NULL
;
827 ret
= bt_dwarf_die_get_name(die
, &die_name
);
832 ret
= dwarf_lowpc(die
->dwarf_die
, &low_addr
);
838 ret
= bin_info_append_offset_str(die_name
, low_addr
, addr
,
846 bt_dwarf_die_destroy(die
);
850 bt_dwarf_die_destroy(die
);
855 * Get the name of the function containing a given address within an
856 * executable using DWARF debug info.
858 * If found, the out parameter `func_name` is set on success. On
859 * failure, it remains unchanged.
861 * @param bin bin_info instance for the executable containing
863 * @param addr Virtual memory address for which to find the
865 * @param func_name Out parameter, the function name
866 * @returns 0 on success, -1 on failure
869 int bin_info_lookup_dwarf_function_name(struct bin_info
*bin
, uint64_t addr
,
873 char *_func_name
= NULL
;
874 struct bt_dwarf_cu
*cu
= NULL
;
876 if (!bin
|| !func_name
) {
880 cu
= bt_dwarf_cu_create(bin
->dwarf_info
);
885 while (bt_dwarf_cu_next(cu
) == 0) {
886 ret
= bin_info_lookup_cu_function_name(cu
, addr
, &_func_name
);
897 *func_name
= _func_name
;
902 bt_dwarf_cu_destroy(cu
);
906 bt_dwarf_cu_destroy(cu
);
911 int bin_info_lookup_function_name(struct bin_info
*bin
, uint64_t addr
,
915 char *_func_name
= NULL
;
917 if (!bin
|| !func_name
) {
921 /* Set DWARF info if it hasn't been accessed yet. */
922 if (!bin
->dwarf_info
&& !bin
->is_elf_only
) {
923 ret
= bin_info_set_dwarf_info(bin
);
925 printf_verbose("Failed to set bin dwarf info, falling back to ELF lookup.\n");
926 /* Failed to set DWARF info, fallback to ELF. */
927 bin
->is_elf_only
= true;
931 if (!bin_info_has_address(bin
, addr
)) {
936 * Addresses in ELF and DWARF are relative to base address for
937 * PIC, so make the address argument relative too if needed.
940 addr
-= bin
->low_addr
;
943 if (bin
->is_elf_only
) {
944 ret
= bin_info_lookup_elf_function_name(bin
, addr
, &_func_name
);
945 printf_verbose("Failed to lookup function name (elf), error %i\n", ret
);
947 ret
= bin_info_lookup_dwarf_function_name(bin
, addr
, &_func_name
);
948 printf_verbose("Failed to lookup function name (dwarf), error %i\n", ret
);
951 *func_name
= _func_name
;
959 int bin_info_get_bin_loc(struct bin_info
*bin
, uint64_t addr
, char **bin_loc
)
962 char *_bin_loc
= NULL
;
964 if (!bin
|| !bin_loc
) {
969 addr
-= bin
->low_addr
;
970 ret
= asprintf(&_bin_loc
, "+%#0" PRIx64
, addr
);
972 ret
= asprintf(&_bin_loc
, "@%#0" PRIx64
, addr
);
975 if (ret
== -1 || !_bin_loc
) {
987 * Predicate used to determine whether the children of a given DIE
988 * contain a specific address.
990 * More specifically, the parameter `die` is expected to be a
991 * subprogram (function) DIE, and this predicate tells whether any
992 * subroutines are inlined within this function and would contain
995 * On success, the out parameter `contains` is set with the boolean
996 * value indicating whether the DIE's range covers `addr`. On failure,
997 * it remains unchanged.
999 * Do note that this function advances the position of `die`. If the
1000 * address is found within one of its children, `die` will be pointing
1001 * to that child upon returning from the function, allowing to extract
1002 * the information deemed necessary.
1004 * @param die The parent DIE in whose children the address will be
1006 * @param addr The address for which to look for in the DIEs
1007 * @param contains Out parameter, true if addr is contained,
1009 * @returns Returns 0 on success, -1 on failure
1012 int bin_info_child_die_has_address(struct bt_dwarf_die
*die
, uint64_t addr
, bool *contains
)
1015 bool _contains
= false;
1021 ret
= bt_dwarf_die_child(die
);
1029 ret
= bt_dwarf_die_get_tag(die
, &tag
);
1034 if (tag
== DW_TAG_inlined_subroutine
) {
1035 ret
= bt_dwarf_die_contains_addr(die
, addr
, &_contains
);
1044 } while (bt_dwarf_die_next(die
) == 0);
1047 *contains
= _contains
;
1055 * Lookup the source location for a given address within a CU, making
1056 * the assumption that it is contained within an inline routine in a
1059 * @param cu bt_dwarf_cu instance in which to look for the address
1060 * @param addr The address for which to look for
1061 * @param src_loc Out parameter, the source location (filename and
1062 * line number) for the address
1063 * @returns 0 on success, -1 on failure
1066 int bin_info_lookup_cu_src_loc_inl(struct bt_dwarf_cu
*cu
, uint64_t addr
,
1067 struct source_location
**src_loc
)
1071 struct bt_dwarf_die
*die
= NULL
;
1072 struct source_location
*_src_loc
= NULL
;
1074 if (!cu
|| !src_loc
) {
1078 die
= bt_dwarf_die_create(cu
);
1083 while (bt_dwarf_die_next(die
) == 0) {
1086 ret
= bt_dwarf_die_get_tag(die
, &tag
);
1091 if (tag
== DW_TAG_subprogram
) {
1092 bool contains
= false;
1094 ret
= bt_dwarf_die_contains_addr(die
, addr
, &contains
);
1101 * Try to find an inlined subroutine
1102 * child of this DIE containing addr.
1104 ret
= bin_info_child_die_has_address(die
, addr
,
1117 char *filename
= NULL
;
1120 _src_loc
= g_new0(struct source_location
, 1);
1125 ret
= bt_dwarf_die_get_call_file(die
, &filename
);
1129 ret
= bt_dwarf_die_get_call_line(die
, &line_no
);
1135 _src_loc
->filename
= filename
;
1136 _src_loc
->line_no
= line_no
;
1137 *src_loc
= _src_loc
;
1140 bt_dwarf_die_destroy(die
);
1144 source_location_destroy(_src_loc
);
1145 bt_dwarf_die_destroy(die
);
1150 * Lookup the source location for a given address within a CU,
1151 * assuming that it is contained within an inlined function.
1153 * A source location can be found regardless of inlining status for
1154 * this method, but in the case of an inlined function, the returned
1155 * source location will point not to the callsite but rather to the
1156 * definition site of the inline function.
1158 * @param cu bt_dwarf_cu instance in which to look for the address
1159 * @param addr The address for which to look for
1160 * @param src_loc Out parameter, the source location (filename and
1161 * line number) for the address
1162 * @returns 0 on success, -1 on failure
1165 int bin_info_lookup_cu_src_loc_no_inl(struct bt_dwarf_cu
*cu
, uint64_t addr
,
1166 struct source_location
**src_loc
)
1168 struct source_location
*_src_loc
= NULL
;
1169 struct bt_dwarf_die
*die
= NULL
;
1170 const char *filename
= NULL
;
1171 Dwarf_Line
*line
= NULL
;
1172 Dwarf_Addr line_addr
;
1175 if (!cu
|| !src_loc
) {
1179 die
= bt_dwarf_die_create(cu
);
1184 line
= dwarf_getsrc_die(die
->dwarf_die
, addr
);
1189 ret
= dwarf_lineaddr(line
, &line_addr
);
1194 filename
= dwarf_linesrc(line
, NULL
, NULL
);
1199 if (addr
== line_addr
) {
1200 _src_loc
= g_new0(struct source_location
, 1);
1205 ret
= dwarf_lineno(line
, &line_no
);
1210 _src_loc
->line_no
= line_no
;
1211 _src_loc
->filename
= strdup(filename
);
1214 bt_dwarf_die_destroy(die
);
1217 *src_loc
= _src_loc
;
1223 source_location_destroy(_src_loc
);
1224 bt_dwarf_die_destroy(die
);
1229 * Get the source location (file name and line number) for a given
1230 * address within a compile unit (CU).
1232 * On success, the out parameter `src_loc` is set if found. On
1233 * failure, it remains unchanged.
1235 * @param cu bt_dwarf_cu instance for the compile unit which
1236 * may contain the address
1237 * @param addr Virtual memory address for which to find the
1239 * @param src_loc Out parameter, the source location
1240 * @returns 0 on success, -1 on failure
1243 int bin_info_lookup_cu_src_loc(struct bt_dwarf_cu
*cu
, uint64_t addr
,
1244 struct source_location
**src_loc
)
1247 struct source_location
*_src_loc
= NULL
;
1249 if (!cu
|| !src_loc
) {
1253 ret
= bin_info_lookup_cu_src_loc_inl(cu
, addr
, &_src_loc
);
1262 ret
= bin_info_lookup_cu_src_loc_no_inl(cu
, addr
, &_src_loc
);
1273 *src_loc
= _src_loc
;
1279 source_location_destroy(_src_loc
);
1284 int bin_info_lookup_source_location(struct bin_info
*bin
, uint64_t addr
,
1285 struct source_location
**src_loc
)
1287 struct bt_dwarf_cu
*cu
= NULL
;
1288 struct source_location
*_src_loc
= NULL
;
1290 if (!bin
|| !src_loc
) {
1294 /* Set DWARF info if it hasn't been accessed yet. */
1295 if (!bin
->dwarf_info
&& !bin
->is_elf_only
) {
1296 if (bin_info_set_dwarf_info(bin
)) {
1297 /* Failed to set DWARF info. */
1298 bin
->is_elf_only
= true;
1302 if (bin
->is_elf_only
) {
1303 /* We cannot lookup source location without DWARF info. */
1307 if (!bin_info_has_address(bin
, addr
)) {
1312 * Addresses in ELF and DWARF are relative to base address for
1313 * PIC, so make the address argument relative too if needed.
1316 addr
-= bin
->low_addr
;
1319 cu
= bt_dwarf_cu_create(bin
->dwarf_info
);
1324 while (bt_dwarf_cu_next(cu
) == 0) {
1327 ret
= bin_info_lookup_cu_src_loc(cu
, addr
, &_src_loc
);
1337 bt_dwarf_cu_destroy(cu
);
1339 *src_loc
= _src_loc
;
1345 source_location_destroy(_src_loc
);
1346 bt_dwarf_cu_destroy(cu
);