/* Postprocess module symbol versions * * Copyright 2003 Kai Germaschewski * Copyright 2002-2004 Rusty Russell, IBM Corporation * Copyright 2006-2008 Sam Ravnborg * Based in part on module-init-tools/depmod.c,file2alias * * This software may be used and distributed according to the terms * of the GNU General Public License, incorporated herein by reference. * * Usage: modpost vmlinux module1.o module2.o ... */ #define _GNU_SOURCE#include <elf.h>#include <fnmatch.h>#include <stdio.h>#include <ctype.h>#include <string.h>#include <limits.h>#include <stdbool.h>#include <errno.h>#include "modpost.h"#include "../../include/linux/license.h" /* Are we using CONFIG_MODVERSIONS? */static bool modversions;/* Is CONFIG_MODULE_SRCVERSION_ALL set? */static bool all_versions;/* If we are modposting external module set to 1 */static bool external_module;/* Only warn about unresolved symbols */static bool warn_unresolved; static int sec_mismatch_count;static bool sec_mismatch_warn_only = true;/* ignore missing files */static bool ignore_missing_files;/* If set to 1, only warn (instead of error) about missing ns imports */static bool allow_missing_ns_imports; static bool error_occurred; /* * Cut off the warnings when there are too many. This typically occurs when * vmlinux is missing. ('make modules' without building vmlinux.) */#define MAX_UNRESOLVED_REPORTS 10static unsigned int nr_unresolved; /* In kernel, this size is defined in linux/module.h; * here we use Elf_Addr instead of long for covering cross-compile */ #define MODULE_NAME_LEN (64 - sizeof(Elf_Addr)) void __attribute__((format(printf, 2, 3)))modpost_log(enum loglevel loglevel, const char *fmt, ...){ va_list arglist; switch (loglevel) { case LOG_WARN: fprintf(stderr, "WARNING: "); break; case LOG_ERROR: fprintf(stderr, "ERROR: "); break; case LOG_FATAL: fprintf(stderr, "FATAL: "); break; default: /* invalid loglevel, ignore */ break; } fprintf(stderr, "modpost: "); va_start(arglist, fmt); vfprintf(stderr, fmt, arglist); va_end(arglist); if (loglevel == LOG_FATAL) exit(1); if (loglevel == LOG_ERROR) error_occurred = true;} static inline bool strends(const char *str, const char *postfix){ if (strlen(str) < strlen(postfix)) return false; return strcmp(str + strlen(str) - strlen(postfix), postfix) == 0;} void *do_nofail(void *ptr, const char *expr){ if (!ptr) fatal("Memory allocation failure: %s.\n", expr); return ptr;} char *read_text_file(const char *filename){ struct stat st; size_t nbytes; int fd; char *buf; fd = open(filename, O_RDONLY); if (fd < 0) { perror(filename); exit(1); } if (fstat(fd, &st) < 0) { perror(filename); exit(1); } buf = NOFAIL(malloc(st.st_size + 1)); nbytes = st.st_size; while (nbytes) { ssize_t bytes_read; bytes_read = read(fd, buf, nbytes); if (bytes_read < 0) { perror(filename); exit(1); } nbytes -= bytes_read; } buf[st.st_size] = '\0'; close(fd); return buf;} char *get_line(char **stringp){ char *orig = *stringp, *next; /* do not return the unwanted extra line at EOF */ if (!orig || *orig == '\0') return NULL; /* don't use strsep here, it is not available everywhere */ next = strchr(orig, '\n'); if (next) *next++ = '\0'; *stringp = next; return orig;} /* A list of all modules we processed */LIST_HEAD(modules); static struct module *find_module(const char *modname){ struct module *mod; list_for_each_entry(mod, &modules, list) { if (strcmp(mod->name, modname) == 0) return mod; } return NULL;} static struct module *new_module(const char *name, size_t namelen){ struct module *mod; mod = NOFAIL(malloc(sizeof(*mod) + namelen + 1)); memset(mod, 0, sizeof(*mod)); INIT_LIST_HEAD(&mod->exported_symbols); INIT_LIST_HEAD(&mod->unresolved_symbols); INIT_LIST_HEAD(&mod->missing_namespaces); INIT_LIST_HEAD(&mod->imported_namespaces); memcpy(mod->name, name, namelen); mod->name[namelen] = '\0'; mod->is_vmlinux = (strcmp(mod->name, "vmlinux") == 0); /* * Set mod->is_gpl_compatible to true by default. If MODULE_LICENSE() * is missing, do not check the use for EXPORT_SYMBOL_GPL() becasue * modpost will exit wiht error anyway. */ mod->is_gpl_compatible = true; list_add_tail(&mod->list, &modules); return mod;} /* A hash of all exported symbols, * struct symbol is also used for lists of unresolved symbols */ #define SYMBOL_HASH_SIZE 1024 struct symbol { struct symbol *next; struct list_head list; /* link to module::exported_symbols or module::unresolved_symbols */ struct module *module; char *namespace; unsigned int crc; bool crc_valid; bool weak; bool is_gpl_only; /* exported by EXPORT_SYMBOL_GPL */ char name[];}; static struct symbol *symbolhash[SYMBOL_HASH_SIZE]; /* This is based on the hash algorithm from gdbm, via tdb */static inline unsigned int tdb_hash(const char *name){ unsigned value; /* Used to compute the hash value. */ unsigned i; /* Used to cycle through random values. */ /* Set the initial value from the key size. */ for (value = 0x238F13AF * strlen(name), i = 0; name[i]; i++) value = (value + (((unsigned char *)name)[i] << (i*5 % 24))); return (1103515243 * value + 12345);} /** * Allocate a new symbols for use in the hash of exported symbols or * the list of unresolved symbols per module **/static struct symbol *alloc_symbol(const char *name){ struct symbol *s = NOFAIL(malloc(sizeof(*s) + strlen(name) + 1)); memset(s, 0, sizeof(*s)); strcpy(s->name, name); return s;} /* For the hash of exported symbols */static void hash_add_symbol(struct symbol *sym){ unsigned int hash; hash = tdb_hash(sym->name) % SYMBOL_HASH_SIZE; sym->next = symbolhash[hash]; symbolhash[hash] = sym;} static void sym_add_unresolved(const char *name, struct module *mod, bool weak){ struct symbol *sym; sym = alloc_symbol(name); sym->weak = weak; list_add_tail(&sym->list, &mod->unresolved_symbols);} static struct symbol *sym_find_with_module(const char *name, struct module *mod){ struct symbol *s; /* For our purposes, .foo matches foo. PPC64 needs this. */ if (name[0] == '.') name++; for (s = symbolhash[tdb_hash(name) % SYMBOL_HASH_SIZE]; s; s = s->next) { if (strcmp(s->name, name) == 0 && (!mod || s->module == mod)) return s; } return NULL;} static struct symbol *find_symbol(const char *name){ return sym_find_with_module(name, NULL);} struct namespace_list { struct list_head list; char namespace[];}; static bool contains_namespace(struct list_head *head, const char *namespace){ struct namespace_list *list; list_for_each_entry(list, head, list) { if (!strcmp(list->namespace, namespace)) return true; } return false;} static void add_namespace(struct list_head *head, const char *namespace){ struct namespace_list *ns_entry; if (!contains_namespace(head, namespace)) { ns_entry = NOFAIL(malloc(sizeof(*ns_entry) + strlen(namespace) + 1)); strcpy(ns_entry->namespace, namespace); list_add_tail(&ns_entry->list, head); }} static void *sym_get_data_by_offset(const struct elf_info *info, unsigned int secindex, unsigned long offset){ Elf_Shdr *sechdr = &info->sechdrs[secindex]; return (void *)info->hdr + sechdr->sh_offset + offset;} void *sym_get_data(const struct elf_info *info, const Elf_Sym *sym){ return sym_get_data_by_offset(info, get_secindex(info, sym), sym->st_value);} static const char *sech_name(const struct elf_info *info, Elf_Shdr *sechdr){ return sym_get_data_by_offset(info, info->secindex_strings, sechdr->sh_name);} static const char *sec_name(const struct elf_info *info, unsigned int secindex){ /* * If sym->st_shndx is a special section index, there is no * corresponding section header. * Return "" if the index is out of range of info->sechdrs[] array. */ if (secindex >= info->num_sections) return ""; return sech_name(info, &info->sechdrs[secindex]);} #define strstarts(str, prefix) (strncmp(str, prefix, strlen(prefix)) == 0) static void sym_update_namespace(const char *symname, const char *namespace){ struct symbol *s = find_symbol(symname); /* * That symbol should have been created earlier and thus this is * actually an assertion. */ if (!s) { error("Could not update namespace(%s) for symbol %s\n", namespace, symname); return; } free(s->namespace); s->namespace = namespace[0] ? NOFAIL(strdup(namespace)) : NULL;} static struct symbol *sym_add_exported(const char *name, struct module *mod, bool gpl_only){ struct symbol *s = find_symbol(name); if (s && (!external_module || s->module->is_vmlinux || s->module == mod)) { error("%s: '%s' exported twice. Previous export was in %s%s\n", mod->name, name, s->module->name, s->module->is_vmlinux ? "" : ".ko"); } s = alloc_symbol(name); s->module = mod; s->is_gpl_only = gpl_only; list_add_tail(&s->list, &mod->exported_symbols); hash_add_symbol(s); return s;} static void sym_set_crc(struct symbol *sym, unsigned int crc){ sym->crc = crc; sym->crc_valid = true;} static void *grab_file(const char *filename, size_t *size){ struct stat st; void *map = MAP_FAILED; int fd; fd = open(filename, O_RDONLY); if (fd < 0) return NULL; if (fstat(fd, &st)) goto failed; *size = st.st_size; map = mmap(NULL, *size, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0); failed: close(fd); if (map == MAP_FAILED) return NULL; return map;} static void release_file(void *file, size_t size){ munmap(file, size);} static int parse_elf(struct elf_info *info, const char *filename){ unsigned int i; Elf_Ehdr *hdr; Elf_Shdr *sechdrs; Elf_Sym *sym; const char *secstrings; unsigned int symtab_idx = ~0U, symtab_shndx_idx = ~0U; hdr = grab_file(filename, &info->size); if (!hdr) { if (ignore_missing_files) { fprintf(stderr, "%s: %s (ignored)\n", filename, strerror(errno)); return 0; } perror(filename); exit(1); } info->hdr = hdr; if (info->size < sizeof(*hdr)) { /* file too small, assume this is an empty .o file */ return 0; } /* Is this a valid ELF file? */ if ((hdr->e_ident[EI_MAG0] != ELFMAG0) || (hdr->e_ident[EI_MAG1] != ELFMAG1) || (hdr->e_ident[EI_MAG2] != ELFMAG2) || (hdr->e_ident[EI_MAG3] != ELFMAG3)) { /* Not an ELF file - silently ignore it */ return 0; } /* Fix endianness in ELF header */ hdr->e_type = TO_NATIVE(hdr->e_type); hdr->e_machine = TO_NATIVE(hdr->e_machine); hdr->e_version = TO_NATIVE(hdr->e_version); hdr->e_entry = TO_NATIVE(hdr->e_entry); hdr->e_phoff = TO_NATIVE(hdr->e_phoff); hdr->e_shoff = TO_NATIVE(hdr->e_shoff); hdr->e_flags = TO_NATIVE(hdr->e_flags); hdr->e_ehsize = TO_NATIVE(hdr->e_ehsize); hdr->e_phentsize = TO_NATIVE(hdr->e_phentsize); hdr->e_phnum = TO_NATIVE(hdr->e_phnum); hdr->e_shentsize = TO_NATIVE(hdr->e_shentsize); hdr->e_shnum = TO_NATIVE(hdr->e_shnum); hdr->e_shstrndx = TO_NATIVE(hdr->e_shstrndx); sechdrs = (void *)hdr + hdr->e_shoff; info->sechdrs = sechdrs; /* modpost only works for relocatable objects */ if (hdr->e_type != ET_REL) fatal("%s: not relocatable object.", filename); /* Check if file offset is correct */ if (hdr->e_shoff > info->size) { fatal("section header offset=%lu in file '%s' is bigger than filesize=%zu\n", (unsigned long)hdr->e_shoff, filename, info->size); return 0; } if (hdr->e_shnum == SHN_UNDEF) { /* * There are more than 64k sections, * read count from .sh_size. */ info->num_sections = TO_NATIVE(sechdrs[0].sh_size); } else { info->num_sections = hdr->e_shnum; } if (hdr->e_shstrndx == SHN_XINDEX) { info->secindex_strings = TO_NATIVE(sechdrs[0].sh_link); } else { info->secindex_strings = hdr->e_shstrndx; }Lines 1–500 of 2407. 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/* Postprocess module symbol versions * * Copyright 2003 Kai Germaschewski * Copyright 2002-2004 Rusty Russell, IBM Corporation * Copyright 2006-2008 Sam Ravnborg * Based in part on module-init-tools/depmod.c,file2alias * * This software may be used and distributed according to the terms * of the GNU General Public License, incorporated herein by reference. * * Usage: modpost vmlinux module1.o module2.o ... */ #define _GNU_SOURCE #include <elf.h> #include <fnmatch.h> #include <stdio.h> #include <ctype.h> #include <string.h> #include <limits.h> #include <stdbool.h> #include <errno.h> #include "modpost.h" #include "../../include/linux/license.h" /* Are we using CONFIG_MODVERSIONS? */ static bool modversions; /* Is CONFIG_MODULE_SRCVERSION_ALL set? */ static bool all_versions; /* If we are modposting external module set to 1 */ static bool external_module; /* Only warn about unresolved symbols */ static bool warn_unresolved; static int sec_mismatch_count; static bool sec_mismatch_warn_only = true; /* ignore missing files */ static bool ignore_missing_files; /* If set to 1, only warn (instead of error) about missing ns imports */ static bool allow_missing_ns_imports; static bool error_occurred; /* * Cut off the warnings when there are too many. This typically occurs when * vmlinux is missing. ('make modules' without building vmlinux.) */ #define MAX_UNRESOLVED_REPORTS 10 static unsigned int nr_unresolved; /* In kernel, this size is defined in linux/module.h; * here we use Elf_Addr instead of long for covering cross-compile */ #define MODULE_NAME_LEN (64 - sizeof(Elf_Addr)) void __attribute__((format(printf, 2, 3))) modpost_log(enum loglevel loglevel, const char *fmt, ...) { va_list arglist; switch (loglevel) { case LOG_WARN: fprintf(stderr, "WARNING: "); break; case LOG_ERROR: fprintf(stderr, "ERROR: "); break; case LOG_FATAL: fprintf(stderr, "FATAL: "); break; default: /* invalid loglevel, ignore */ break; } fprintf(stderr, "modpost: "); va_start(arglist, fmt); vfprintf(stderr, fmt, arglist); va_end(arglist); if (loglevel == LOG_FATAL) exit(1); if (loglevel == LOG_ERROR) error_occurred = true; } static inline bool strends(const char *str, const char *postfix) { if (strlen(str) < strlen(postfix)) return false; return strcmp(str + strlen(str) - strlen(postfix), postfix) == 0; } void *do_nofail(void *ptr, const char *expr) { if (!ptr) fatal("Memory allocation failure: %s.\n", expr); return ptr; } char *read_text_file(const char *filename) { struct stat st; size_t nbytes; int fd; char *buf; fd = open(filename, O_RDONLY); if (fd < 0) { perror(filename); exit(1); } if (fstat(fd, &st) < 0) { perror(filename); exit(1); } buf = NOFAIL(malloc(st.st_size + 1)); nbytes = st.st_size; while (nbytes) { ssize_t bytes_read; bytes_read = read(fd, buf, nbytes); if (bytes_read < 0) { perror(filename); exit(1); } nbytes -= bytes_read; } buf[st.st_size] = '\0'; close(fd); return buf; } char *get_line(char **stringp) { char *orig = *stringp, *next; /* do not return the unwanted extra line at EOF */ if (!orig || *orig == '\0') return NULL; /* don't use strsep here, it is not available everywhere */ next = strchr(orig, '\n'); if (next) *next++ = '\0'; *stringp = next; return orig; } /* A list of all modules we processed */ LIST_HEAD(modules); static struct module *find_module(const char *modname) { struct module *mod; list_for_each_entry(mod, &modules, list) { if (strcmp(mod->name, modname) == 0) return mod; } return NULL; } static struct module *new_module(const char *name, size_t namelen) { struct module *mod; mod = NOFAIL(malloc(sizeof(*mod) + namelen + 1)); memset(mod, 0, sizeof(*mod)); INIT_LIST_HEAD(&mod->exported_symbols); INIT_LIST_HEAD(&mod->unresolved_symbols); INIT_LIST_HEAD(&mod->missing_namespaces); INIT_LIST_HEAD(&mod->imported_namespaces); memcpy(mod->name, name, namelen); mod->name[namelen] = '\0'; mod->is_vmlinux = (strcmp(mod->name, "vmlinux") == 0); /* * Set mod->is_gpl_compatible to true by default. If MODULE_LICENSE() * is missing, do not check the use for EXPORT_SYMBOL_GPL() becasue * modpost will exit wiht error anyway. */ mod->is_gpl_compatible = true; list_add_tail(&mod->list, &modules); return mod; } /* A hash of all exported symbols, * struct symbol is also used for lists of unresolved symbols */ #define SYMBOL_HASH_SIZE 1024 struct symbol { struct symbol *next; struct list_head list; /* link to module::exported_symbols or module::unresolved_symbols */ struct module *module; char *namespace; unsigned int crc; bool crc_valid; bool weak; bool is_gpl_only; /* exported by EXPORT_SYMBOL_GPL */ char name[]; }; static struct symbol *symbolhash[SYMBOL_HASH_SIZE]; /* This is based on the hash algorithm from gdbm, via tdb */ static inline unsigned int tdb_hash(const char *name) { unsigned value; /* Used to compute the hash value. */ unsigned i; /* Used to cycle through random values. */ /* Set the initial value from the key size. */ for (value = 0x238F13AF * strlen(name), i = 0; name[i]; i++) value = (value + (((unsigned char *)name)[i] << (i*5 % 24))); return (1103515243 * value + 12345); } /** * Allocate a new symbols for use in the hash of exported symbols or * the list of unresolved symbols per module **/ static struct symbol *alloc_symbol(const char *name) { struct symbol *s = NOFAIL(malloc(sizeof(*s) + strlen(name) + 1)); memset(s, 0, sizeof(*s)); strcpy(s->name, name); return s; } /* For the hash of exported symbols */ static void hash_add_symbol(struct symbol *sym) { unsigned int hash; hash = tdb_hash(sym->name) % SYMBOL_HASH_SIZE; sym->next = symbolhash[hash]; symbolhash[hash] = sym; } static void sym_add_unresolved(const char *name, struct module *mod, bool weak) { struct symbol *sym; sym = alloc_symbol(name); sym->weak = weak; list_add_tail(&sym->list, &mod->unresolved_symbols); } static struct symbol *sym_find_with_module(const char *name, struct module *mod) { struct symbol *s; /* For our purposes, .foo matches foo. PPC64 needs this. */ if (name[0] == '.') name++; for (s = symbolhash[tdb_hash(name) % SYMBOL_HASH_SIZE]; s; s = s->next) { if (strcmp(s->name, name) == 0 && (!mod || s->module == mod)) return s; } return NULL; } static struct symbol *find_symbol(const char *name) { return sym_find_with_module(name, NULL); } struct namespace_list { struct list_head list; char namespace[]; }; static bool contains_namespace(struct list_head *head, const char *namespace) { struct namespace_list *list; list_for_each_entry(list, head, list) { if (!strcmp(list->namespace, namespace)) return true; } return false; } static void add_namespace(struct list_head *head, const char *namespace) { struct namespace_list *ns_entry; if (!contains_namespace(head, namespace)) { ns_entry = NOFAIL(malloc(sizeof(*ns_entry) + strlen(namespace) + 1)); strcpy(ns_entry->namespace, namespace); list_add_tail(&ns_entry->list, head); } } static void *sym_get_data_by_offset(const struct elf_info *info, unsigned int secindex, unsigned long offset) { Elf_Shdr *sechdr = &info->sechdrs[secindex]; return (void *)info->hdr + sechdr->sh_offset + offset; } void *sym_get_data(const struct elf_info *info, const Elf_Sym *sym) { return sym_get_data_by_offset(info, get_secindex(info, sym), sym->st_value); } static const char *sech_name(const struct elf_info *info, Elf_Shdr *sechdr) { return sym_get_data_by_offset(info, info->secindex_strings, sechdr->sh_name); } static const char *sec_name(const struct elf_info *info, unsigned int secindex) { /* * If sym->st_shndx is a special section index, there is no * corresponding section header. * Return "" if the index is out of range of info->sechdrs[] array. */ if (secindex >= info->num_sections) return ""; return sech_name(info, &info->sechdrs[secindex]); } #define strstarts(str, prefix) (strncmp(str, prefix, strlen(prefix)) == 0) static void sym_update_namespace(const char *symname, const char *namespace) { struct symbol *s = find_symbol(symname); /* * That symbol should have been created earlier and thus this is * actually an assertion. */ if (!s) { error("Could not update namespace(%s) for symbol %s\n", namespace, symname); return; } free(s->namespace); s->namespace = namespace[0] ? NOFAIL(strdup(namespace)) : NULL; } static struct symbol *sym_add_exported(const char *name, struct module *mod, bool gpl_only) { struct symbol *s = find_symbol(name); if (s && (!external_module || s->module->is_vmlinux || s->module == mod)) { error("%s: '%s' exported twice. Previous export was in %s%s\n", mod->name, name, s->module->name, s->module->is_vmlinux ? "" : ".ko"); } s = alloc_symbol(name); s->module = mod; s->is_gpl_only = gpl_only; list_add_tail(&s->list, &mod->exported_symbols); hash_add_symbol(s); return s; } static void sym_set_crc(struct symbol *sym, unsigned int crc) { sym->crc = crc; sym->crc_valid = true; } static void *grab_file(const char *filename, size_t *size) { struct stat st; void *map = MAP_FAILED; int fd; fd = open(filename, O_RDONLY); if (fd < 0) return NULL; if (fstat(fd, &st)) goto failed; *size = st.st_size; map = mmap(NULL, *size, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0); failed: close(fd); if (map == MAP_FAILED) return NULL; return map; } static void release_file(void *file, size_t size) { munmap(file, size); } static int parse_elf(struct elf_info *info, const char *filename) { unsigned int i; Elf_Ehdr *hdr; Elf_Shdr *sechdrs; Elf_Sym *sym; const char *secstrings; unsigned int symtab_idx = ~0U, symtab_shndx_idx = ~0U; hdr = grab_file(filename, &info->size); if (!hdr) { if (ignore_missing_files) { fprintf(stderr, "%s: %s (ignored)\n", filename, strerror(errno)); return 0; } perror(filename); exit(1); } info->hdr = hdr; if (info->size < sizeof(*hdr)) { /* file too small, assume this is an empty .o file */ return 0; } /* Is this a valid ELF file? */ if ((hdr->e_ident[EI_MAG0] != ELFMAG0) || (hdr->e_ident[EI_MAG1] != ELFMAG1) || (hdr->e_ident[EI_MAG2] != ELFMAG2) || (hdr->e_ident[EI_MAG3] != ELFMAG3)) { /* Not an ELF file - silently ignore it */ return 0; } /* Fix endianness in ELF header */ hdr->e_type = TO_NATIVE(hdr->e_type); hdr->e_machine = TO_NATIVE(hdr->e_machine); hdr->e_version = TO_NATIVE(hdr->e_version); hdr->e_entry = TO_NATIVE(hdr->e_entry); hdr->e_phoff = TO_NATIVE(hdr->e_phoff); hdr->e_shoff = TO_NATIVE(hdr->e_shoff); hdr->e_flags = TO_NATIVE(hdr->e_flags); hdr->e_ehsize = TO_NATIVE(hdr->e_ehsize); hdr->e_phentsize = TO_NATIVE(hdr->e_phentsize); hdr->e_phnum = TO_NATIVE(hdr->e_phnum); hdr->e_shentsize = TO_NATIVE(hdr->e_shentsize); hdr->e_shnum = TO_NATIVE(hdr->e_shnum); hdr->e_shstrndx = TO_NATIVE(hdr->e_shstrndx); sechdrs = (void *)hdr + hdr->e_shoff; info->sechdrs = sechdrs; /* modpost only works for relocatable objects */ if (hdr->e_type != ET_REL) fatal("%s: not relocatable object.", filename); /* Check if file offset is correct */ if (hdr->e_shoff > info->size) { fatal("section header offset=%lu in file '%s' is bigger than filesize=%zu\n", (unsigned long)hdr->e_shoff, filename, info->size); return 0; } if (hdr->e_shnum == SHN_UNDEF) { /* * There are more than 64k sections, * read count from .sh_size. */ info->num_sections = TO_NATIVE(sechdrs[0].sh_size); } else { info->num_sections = hdr->e_shnum; } if (hdr->e_shstrndx == SHN_XINDEX) { info->secindex_strings = TO_NATIVE(sechdrs[0].sh_link); } else { info->secindex_strings = hdr->e_shstrndx; }