diff options
Diffstat (limited to 'scripts/mod/modpost.c')
| -rw-r--r-- | scripts/mod/modpost.c | 164 |
1 files changed, 0 insertions, 164 deletions
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index fb0f9b711af..c16c0a0e246 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -460,8 +460,6 @@ static int parse_elf(struct elf_info *info, const char *filename) info->export_unused_gpl_sec = i; else if (strcmp(secname, "__ksymtab_gpl_future") == 0) info->export_gpl_future_sec = i; - else if (strcmp(secname, "__markers_strings") == 0) - info->markers_strings_sec = i; if (sechdrs[i].sh_type != SHT_SYMTAB) continue; @@ -1518,62 +1516,6 @@ static void check_sec_ref(struct module *mod, const char *modname, } } -static void get_markers(struct elf_info *info, struct module *mod) -{ - const Elf_Shdr *sh = &info->sechdrs[info->markers_strings_sec]; - const char *strings = (const char *) info->hdr + sh->sh_offset; - const Elf_Sym *sym, *first_sym, *last_sym; - size_t n; - - if (!info->markers_strings_sec) - return; - - /* - * First count the strings. We look for all the symbols defined - * in the __markers_strings section named __mstrtab_*. For - * these local names, the compiler puts a random .NNN suffix on, - * so the names don't correspond exactly. - */ - first_sym = last_sym = NULL; - n = 0; - for (sym = info->symtab_start; sym < info->symtab_stop; sym++) - if (ELF_ST_TYPE(sym->st_info) == STT_OBJECT && - sym->st_shndx == info->markers_strings_sec && - !strncmp(info->strtab + sym->st_name, - "__mstrtab_", sizeof "__mstrtab_" - 1)) { - if (first_sym == NULL) - first_sym = sym; - last_sym = sym; - ++n; - } - - if (n == 0) - return; - - /* - * Now collect each name and format into a line for the output. - * Lines look like: - * marker_name vmlinux marker %s format %d - * The format string after the second \t can use whitespace. - */ - mod->markers = NOFAIL(malloc(sizeof mod->markers[0] * n)); - mod->nmarkers = n; - - n = 0; - for (sym = first_sym; sym <= last_sym; sym++) - if (ELF_ST_TYPE(sym->st_info) == STT_OBJECT && - sym->st_shndx == info->markers_strings_sec && - !strncmp(info->strtab + sym->st_name, - "__mstrtab_", sizeof "__mstrtab_" - 1)) { - const char *name = strings + sym->st_value; - const char *fmt = strchr(name, '\0') + 1; - char *line = NULL; - asprintf(&line, "%s\t%s\t%s\n", name, mod->name, fmt); - NOFAIL(line); - mod->markers[n++] = line; - } -} - static void read_symbols(char *modname) { const char *symname; @@ -1629,8 +1571,6 @@ static void read_symbols(char *modname) get_src_version(modname, mod->srcversion, sizeof(mod->srcversion)-1); - get_markers(&info, mod); - parse_elf_finish(&info); /* Our trick to get versioning for module struct etc. - it's @@ -1985,96 +1925,6 @@ static void write_dump(const char *fname) write_if_changed(&buf, fname); } -static void add_marker(struct module *mod, const char *name, const char *fmt) -{ - char *line = NULL; - asprintf(&line, "%s\t%s\t%s\n", name, mod->name, fmt); - NOFAIL(line); - - mod->markers = NOFAIL(realloc(mod->markers, ((mod->nmarkers + 1) * - sizeof mod->markers[0]))); - mod->markers[mod->nmarkers++] = line; -} - -static void read_markers(const char *fname) -{ - unsigned long size, pos = 0; - void *file = grab_file(fname, &size); - char *line; - - if (!file) /* No old markers, silently ignore */ - return; - - while ((line = get_next_line(&pos, file, size))) { - char *marker, *modname, *fmt; - struct module *mod; - - marker = line; - modname = strchr(marker, '\t'); - if (!modname) - goto fail; - *modname++ = '\0'; - fmt = strchr(modname, '\t'); - if (!fmt) - goto fail; - *fmt++ = '\0'; - if (*marker == '\0' || *modname == '\0') - goto fail; - - mod = find_module(modname); - if (!mod) { - mod = new_module(modname); - mod->skip = 1; - } - if (is_vmlinux(modname)) { - have_vmlinux = 1; - mod->skip = 0; - } - - if (!mod->skip) - add_marker(mod, marker, fmt); - } - release_file(file, size); - return; -fail: - fatal("parse error in markers list file\n"); -} - -static int compare_strings(const void *a, const void *b) -{ - return strcmp(*(const char **) a, *(const char **) b); -} - -static void write_markers(const char *fname) -{ - struct buffer buf = { }; - struct module *mod; - size_t i; - - for (mod = modules; mod; mod = mod->next) - if ((!external_module || !mod->skip) && mod->markers != NULL) { - /* - * Sort the strings so we can skip duplicates when - * we write them out. - */ - qsort(mod->markers, mod->nmarkers, - sizeof mod->markers[0], &compare_strings); - for (i = 0; i < mod->nmarkers; ++i) { - char *line = mod->markers[i]; - buf_write(&buf, line, strlen(line)); - while (i + 1 < mod->nmarkers && - !strcmp(mod->markers[i], - mod->markers[i + 1])) - free(mod->markers[i++]); - free(mod->markers[i]); - } - free(mod->markers); - mod->markers = NULL; - } - - write_if_changed(&buf, fname); -} - struct ext_sym_list { struct ext_sym_list *next; const char *file; @@ -2086,8 +1936,6 @@ int main(int argc, char **argv) struct buffer buf = { }; char *kernel_read = NULL, *module_read = NULL; char *dump_write = NULL; - char *markers_read = NULL; - char *markers_write = NULL; int opt; int err; struct ext_sym_list *extsym_iter; @@ -2131,12 +1979,6 @@ int main(int argc, char **argv) case 'w': warn_unresolved = 1; break; - case 'M': - markers_write = optarg; - break; - case 'K': - markers_read = optarg; - break; default: exit(1); } @@ -2191,11 +2033,5 @@ int main(int argc, char **argv) "'make CONFIG_DEBUG_SECTION_MISMATCH=y'\n", sec_mismatch_count); - if (markers_read) - read_markers(markers_read); - - if (markers_write) - write_markers(markers_write); - return err; } |