diff options
Diffstat (limited to 'include/hw/elf_ops.h')
-rw-r--r-- | include/hw/elf_ops.h | 48 |
1 files changed, 25 insertions, 23 deletions
diff --git a/include/hw/elf_ops.h b/include/hw/elf_ops.h index a1411bfcab..e0bb47bb67 100644 --- a/include/hw/elf_ops.h +++ b/include/hw/elf_ops.h @@ -104,19 +104,21 @@ static int glue(symcmp, SZ)(const void *s0, const void *s1) : ((sym0->st_value > sym1->st_value) ? 1 : 0); } -static int glue(load_symbols, SZ)(struct elfhdr *ehdr, int fd, int must_swab, - int clear_lsb, symbol_fn_t sym_cb) +static void glue(load_symbols, SZ)(struct elfhdr *ehdr, int fd, int must_swab, + int clear_lsb, symbol_fn_t sym_cb) { - struct elf_shdr *symtab, *strtab, *shdr_table = NULL; - struct elf_sym *syms = NULL; + struct elf_shdr *symtab, *strtab; + g_autofree struct elf_shdr *shdr_table = NULL; + g_autofree struct elf_sym *syms = NULL; + g_autofree char *str = NULL; struct syminfo *s; int nsyms, i; - char *str = NULL; shdr_table = load_at(fd, ehdr->e_shoff, sizeof(struct elf_shdr) * ehdr->e_shnum); - if (!shdr_table) - return -1; + if (!shdr_table) { + return ; + } if (must_swab) { for (i = 0; i < ehdr->e_shnum; i++) { @@ -125,23 +127,25 @@ static int glue(load_symbols, SZ)(struct elfhdr *ehdr, int fd, int must_swab, } symtab = glue(find_section, SZ)(shdr_table, ehdr->e_shnum, SHT_SYMTAB); - if (!symtab) - goto fail; + if (!symtab) { + return; + } syms = load_at(fd, symtab->sh_offset, symtab->sh_size); - if (!syms) - goto fail; + if (!syms) { + return; + } nsyms = symtab->sh_size / sizeof(struct elf_sym); /* String table */ if (symtab->sh_link >= ehdr->e_shnum) { - goto fail; + return; } strtab = &shdr_table[symtab->sh_link]; str = load_at(fd, strtab->sh_offset, strtab->sh_size); if (!str) { - goto fail; + return; } i = 0; @@ -170,8 +174,13 @@ static int glue(load_symbols, SZ)(struct elfhdr *ehdr, int fd, int must_swab, } i++; } - syms = g_realloc(syms, nsyms * sizeof(*syms)); + /* check we have symbols left */ + if (nsyms == 0) { + return; + } + + syms = g_realloc(syms, nsyms * sizeof(*syms)); qsort(syms, nsyms, sizeof(*syms), glue(symcmp, SZ)); for (i = 0; i < nsyms - 1; i++) { if (syms[i].st_size == 0) { @@ -182,18 +191,11 @@ static int glue(load_symbols, SZ)(struct elfhdr *ehdr, int fd, int must_swab, /* Commit */ s = g_malloc0(sizeof(*s)); s->lookup_symbol = glue(lookup_symbol, SZ); - glue(s->disas_symtab.elf, SZ) = syms; + glue(s->disas_symtab.elf, SZ) = g_steal_pointer(&syms); s->disas_num_syms = nsyms; - s->disas_strtab = str; + s->disas_strtab = g_steal_pointer(&str); s->next = syminfos; syminfos = s; - g_free(shdr_table); - return 0; - fail: - g_free(syms); - g_free(str); - g_free(shdr_table); - return -1; } static int glue(elf_reloc, SZ)(struct elfhdr *ehdr, int fd, int must_swab, |