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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65015 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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Родитель
0b81f7bfe7
Коммит
eca36f9cd8
176
addr2line.c
176
addr2line.c
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@ -195,7 +195,7 @@ get_nth_dirname(unsigned long dir, char *p)
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static void
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fill_filename(int file, char *include_directories, char *filenames,
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line_info_t *line)
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line_info_t *line)
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{
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int i;
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char *p = filenames;
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@ -488,8 +488,8 @@ follow_debuglink(const char *debuglink, int num_traces, void **traces,
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#ifdef SUPPORT_COMPRESSED_DEBUG_LINE
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static int
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parse_compressed_debug_line(int num_traces, void **traces,
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char *debug_line, unsigned long size,
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obj_info_t *obj, line_info_t *lines, int offset)
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char *debug_line, unsigned long size,
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obj_info_t *obj, line_info_t *lines, int offset)
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{
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void *uncompressed_debug_line;
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ElfW(Chdr) *chdr = (ElfW(Chdr) *)debug_line;
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@ -498,18 +498,18 @@ parse_compressed_debug_line(int num_traces, void **traces,
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if (chdr->ch_type != ELFCOMPRESS_ZLIB) {
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/* unsupported compression type */
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return -1;
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return -1;
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}
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uncompressed_debug_line = malloc(destsize);
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if (!uncompressed_debug_line) return -1;
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ret = uncompress(uncompressed_debug_line, &destsize,
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(const Bytef *)debug_line + sizeof(ElfW(Chdr)), size-sizeof(ElfW(Chdr)));
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(const Bytef *)debug_line + sizeof(ElfW(Chdr)), size-sizeof(ElfW(Chdr)));
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if (ret != Z_OK) goto fail;
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ret = parse_debug_line(num_traces, traces,
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uncompressed_debug_line,
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destsize,
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obj, lines, offset);
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uncompressed_debug_line,
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destsize,
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obj, lines, offset);
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if (ret) goto fail;
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obj->uncompressed_debug_line = uncompressed_debug_line;
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return 0;
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@ -605,13 +605,13 @@ fill_lines(int num_traces, void **traces, int check_debuglink,
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dynsym_shdr = shdr + i;
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break;
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case SHT_PROGBITS:
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if (!strcmp(section_name, ".debug_line")) {
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if (shdr[i].sh_flags & SHF_COMPRESSED) {
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compressed_p = true;
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}
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debug_line_shdr = shdr + i;
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}
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else if (!strcmp(section_name, ".gnu_debuglink")) {
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if (!strcmp(section_name, ".debug_line")) {
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if (shdr[i].sh_flags & SHF_COMPRESSED) {
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compressed_p = true;
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}
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debug_line_shdr = shdr + i;
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}
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else if (!strcmp(section_name, ".gnu_debuglink")) {
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gnu_debuglink_shdr = shdr + i;
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}
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break;
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@ -625,21 +625,21 @@ fill_lines(int num_traces, void **traces, int check_debuglink,
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char *strtab = file + dynstr_shdr->sh_offset;
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ElfW(Sym) *symtab = (ElfW(Sym) *)(file + dynsym_shdr->sh_offset);
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int symtab_count = (int)(dynsym_shdr->sh_size / sizeof(ElfW(Sym)));
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for (j = 0; j < symtab_count; j++) {
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ElfW(Sym) *sym = &symtab[j];
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Dl_info info;
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void *h, *s;
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if (ELF_ST_TYPE(sym->st_info) != STT_FUNC || sym->st_size <= 0) continue;
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h = dlopen(NULL, RTLD_NOW|RTLD_LOCAL);
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if (!h) continue;
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s = dlsym(h, strtab + sym->st_name);
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if (s && dladdr(s, &info)) {
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dladdr_fbase = (uintptr_t)info.dli_fbase;
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for (j = 0; j < symtab_count; j++) {
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ElfW(Sym) *sym = &symtab[j];
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Dl_info info;
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void *h, *s;
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if (ELF_ST_TYPE(sym->st_info) != STT_FUNC || sym->st_size <= 0) continue;
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h = dlopen(NULL, RTLD_NOW|RTLD_LOCAL);
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if (!h) continue;
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s = dlsym(h, strtab + sym->st_name);
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if (s && dladdr(s, &info)) {
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dladdr_fbase = (uintptr_t)info.dli_fbase;
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dlclose(h);
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break;
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}
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break;
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}
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dlclose(h);
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}
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}
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if (ehdr->e_type == ET_EXEC) {
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obj->base_addr = 0;
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}
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@ -651,29 +651,29 @@ fill_lines(int num_traces, void **traces, int check_debuglink,
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}
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if (!symtab_shdr) {
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symtab_shdr = dynsym_shdr;
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strtab_shdr = dynstr_shdr;
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symtab_shdr = dynsym_shdr;
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strtab_shdr = dynstr_shdr;
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}
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if (symtab_shdr && strtab_shdr) {
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char *strtab = file + strtab_shdr->sh_offset;
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ElfW(Sym) *symtab = (ElfW(Sym) *)(file + symtab_shdr->sh_offset);
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int symtab_count = (int)(symtab_shdr->sh_size / sizeof(ElfW(Sym)));
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for (j = 0; j < symtab_count; j++) {
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ElfW(Sym) *sym = &symtab[j];
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uintptr_t saddr = (uintptr_t)sym->st_value + obj->base_addr;
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if (ELF_ST_TYPE(sym->st_info) != STT_FUNC || sym->st_size <= 0) continue;
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for (i = offset; i < num_traces; i++) {
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uintptr_t d = (uintptr_t)traces[i] - saddr;
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if (lines[i].line > 0 || d <= 0 || d > (uintptr_t)sym->st_size)
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continue;
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/* fill symbol name and addr from .symtab */
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lines[i].sname = strtab + sym->st_name;
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lines[i].saddr = saddr;
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lines[i].path = obj->path;
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lines[i].base_addr = obj->base_addr;
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}
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}
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char *strtab = file + strtab_shdr->sh_offset;
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ElfW(Sym) *symtab = (ElfW(Sym) *)(file + symtab_shdr->sh_offset);
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int symtab_count = (int)(symtab_shdr->sh_size / sizeof(ElfW(Sym)));
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for (j = 0; j < symtab_count; j++) {
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ElfW(Sym) *sym = &symtab[j];
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uintptr_t saddr = (uintptr_t)sym->st_value + obj->base_addr;
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if (ELF_ST_TYPE(sym->st_info) != STT_FUNC || sym->st_size <= 0) continue;
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for (i = offset; i < num_traces; i++) {
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uintptr_t d = (uintptr_t)traces[i] - saddr;
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if (lines[i].line > 0 || d <= 0 || d > (uintptr_t)sym->st_size)
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continue;
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/* fill symbol name and addr from .symtab */
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lines[i].sname = strtab + sym->st_name;
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lines[i].saddr = saddr;
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lines[i].path = obj->path;
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lines[i].base_addr = obj->base_addr;
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}
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}
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}
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if (!debug_line_shdr) {
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@ -689,19 +689,19 @@ fill_lines(int num_traces, void **traces, int check_debuglink,
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if (compressed_p) {
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#ifdef SUPPORT_COMPRESSED_DEBUG_LINE
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int r = parse_compressed_debug_line(num_traces, traces,
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file + debug_line_shdr->sh_offset,
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debug_line_shdr->sh_size,
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obj, lines, offset);
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if (r) goto fail;
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int r = parse_compressed_debug_line(num_traces, traces,
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file + debug_line_shdr->sh_offset,
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debug_line_shdr->sh_size,
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obj, lines, offset);
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if (r) goto fail;
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#endif
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}
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else {
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int r = parse_debug_line(num_traces, traces,
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file + debug_line_shdr->sh_offset,
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debug_line_shdr->sh_size,
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obj, lines, offset);
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if (r) goto fail;
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int r = parse_debug_line(num_traces, traces,
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file + debug_line_shdr->sh_offset,
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debug_line_shdr->sh_size,
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obj, lines, offset);
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if (r) goto fail;
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}
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finish:
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return dladdr_fbase;
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@ -810,43 +810,43 @@ next_line:
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/* output */
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for (i = 0; i < num_traces; i++) {
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line_info_t *line = &lines[i];
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uintptr_t addr = (uintptr_t)traces[i];
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uintptr_t d = addr - line->saddr;
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if (!line->path) {
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kprintf("[0x%lx]\n", addr);
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}
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else if (!line->saddr || !line->sname) {
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kprintf("%s(0x%lx) [0x%lx]\n", line->path, addr-line->base_addr, addr);
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}
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else if (line->line <= 0) {
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kprintf("%s(%s+0x%lx) [0x%lx]\n", line->path, line->sname,
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d, addr);
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}
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else if (!line->filename) {
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kprintf("%s(%s+0x%lx) [0x%lx] ???:%d\n", line->path, line->sname,
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d, addr, line->line);
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}
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else if (line->dirname && line->dirname[0]) {
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kprintf("%s(%s+0x%lx) [0x%lx] %s/%s:%d\n", line->path, line->sname,
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d, addr, line->dirname, line->filename, line->line);
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}
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else {
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kprintf("%s(%s+0x%lx) [0x%lx] %s:%d\n", line->path, line->sname,
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d, addr, line->filename, line->line);
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}
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line_info_t *line = &lines[i];
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uintptr_t addr = (uintptr_t)traces[i];
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uintptr_t d = addr - line->saddr;
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if (!line->path) {
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kprintf("[0x%lx]\n", addr);
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}
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else if (!line->saddr || !line->sname) {
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kprintf("%s(0x%lx) [0x%lx]\n", line->path, addr-line->base_addr, addr);
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}
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else if (line->line <= 0) {
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kprintf("%s(%s+0x%lx) [0x%lx]\n", line->path, line->sname,
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d, addr);
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}
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else if (!line->filename) {
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kprintf("%s(%s+0x%lx) [0x%lx] ???:%d\n", line->path, line->sname,
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d, addr, line->line);
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}
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else if (line->dirname && line->dirname[0]) {
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kprintf("%s(%s+0x%lx) [0x%lx] %s/%s:%d\n", line->path, line->sname,
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d, addr, line->dirname, line->filename, line->line);
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}
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else {
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kprintf("%s(%s+0x%lx) [0x%lx] %s:%d\n", line->path, line->sname,
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d, addr, line->filename, line->line);
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}
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/* FreeBSD's backtrace may show _start and so on */
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if (line->sname && strcmp("main", line->sname) == 0)
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if (line->sname && strcmp("main", line->sname) == 0)
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break;
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}
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/* free */
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while (obj) {
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obj_info_t *o = obj;
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obj = o->next;
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if (o->mapped_size) {
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munmap(o->mapped, o->mapped_size);
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}
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obj = o->next;
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if (o->mapped_size) {
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munmap(o->mapped, o->mapped_size);
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}
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if (o->uncompressed_debug_line) {
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free(o->uncompressed_debug_line);
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}
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