diff options
Diffstat (limited to 'tools/perf/util/symbol-elf.c')
-rw-r--r-- | tools/perf/util/symbol-elf.c | 39 |
1 files changed, 31 insertions, 8 deletions
diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c index 502505cf236a..5c39f420111e 100644 --- a/tools/perf/util/symbol-elf.c +++ b/tools/perf/util/symbol-elf.c @@ -259,7 +259,7 @@ int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss, struct map * { uint32_t nr_rel_entries, idx; GElf_Sym sym; - u64 plt_offset; + u64 plt_offset, plt_header_size, plt_entry_size; GElf_Shdr shdr_plt; struct symbol *f; GElf_Shdr shdr_rel_plt, shdr_dynsym; @@ -326,6 +326,23 @@ int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss, struct map * nr_rel_entries = shdr_rel_plt.sh_size / shdr_rel_plt.sh_entsize; plt_offset = shdr_plt.sh_offset; + switch (ehdr.e_machine) { + case EM_ARM: + plt_header_size = 20; + plt_entry_size = 12; + break; + + case EM_AARCH64: + plt_header_size = 32; + plt_entry_size = 16; + break; + + default: /* FIXME: s390/alpha/mips/parisc/poperpc/sh/sparc/xtensa need to be checked */ + plt_header_size = shdr_plt.sh_entsize; + plt_entry_size = shdr_plt.sh_entsize; + break; + } + plt_offset += plt_header_size; if (shdr_rel_plt.sh_type == SHT_RELA) { GElf_Rela pos_mem, *pos; @@ -335,7 +352,6 @@ int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss, struct map * const char *elf_name = NULL; char *demangled = NULL; symidx = GELF_R_SYM(pos->r_info); - plt_offset += shdr_plt.sh_entsize; gelf_getsym(syms, symidx, &sym); elf_name = elf_sym__name(&sym, symstrs); @@ -346,11 +362,12 @@ int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss, struct map * "%s@plt", elf_name); free(demangled); - f = symbol__new(plt_offset, shdr_plt.sh_entsize, + f = symbol__new(plt_offset, plt_entry_size, STB_GLOBAL, sympltname); if (!f) goto out_elf_end; + plt_offset += plt_entry_size; symbols__insert(&dso->symbols[map->type], f); ++nr; } @@ -361,7 +378,6 @@ int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss, struct map * const char *elf_name = NULL; char *demangled = NULL; symidx = GELF_R_SYM(pos->r_info); - plt_offset += shdr_plt.sh_entsize; gelf_getsym(syms, symidx, &sym); elf_name = elf_sym__name(&sym, symstrs); @@ -372,11 +388,12 @@ int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss, struct map * "%s@plt", elf_name); free(demangled); - f = symbol__new(plt_offset, shdr_plt.sh_entsize, + f = symbol__new(plt_offset, plt_entry_size, STB_GLOBAL, sympltname); if (!f) goto out_elf_end; + plt_offset += plt_entry_size; symbols__insert(&dso->symbols[map->type], f); ++nr; } @@ -391,7 +408,7 @@ out_elf_end: return 0; } -char *dso__demangle_sym(struct dso *dso, int kmodule, char *elf_name) +char *dso__demangle_sym(struct dso *dso, int kmodule, const char *elf_name) { return demangle_sym(dso, kmodule, elf_name); } @@ -793,6 +810,12 @@ static u64 ref_reloc(struct kmap *kmap) void __weak arch__sym_update(struct symbol *s __maybe_unused, GElf_Sym *sym __maybe_unused) { } +void __weak arch__adjust_sym_map_offset(GElf_Sym *sym, GElf_Shdr *shdr, + struct map *map __maybe_unused) +{ + sym->st_value -= shdr->sh_addr - shdr->sh_offset; +} + int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss, struct symsrc *runtime_ss, int kmodule) { @@ -973,7 +996,7 @@ int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss, /* Adjust symbol to map to file offset */ if (adjust_kernel_syms) - sym.st_value -= shdr.sh_addr - shdr.sh_offset; + arch__adjust_sym_map_offset(&sym, &shdr, map); if (strcmp(section_name, (curr_dso->short_name + @@ -1442,7 +1465,7 @@ static int kcore_copy__parse_kallsyms(struct kcore_copy_info *kci, static int kcore_copy__process_modules(void *arg, const char *name __maybe_unused, - u64 start) + u64 start, u64 size __maybe_unused) { struct kcore_copy_info *kci = arg; |