diff options
Diffstat (limited to 'ldso')
| -rw-r--r-- | ldso/Makefile | 7 | ||||
| -rw-r--r-- | ldso/util/.cvsignore | 6 | ||||
| -rw-r--r-- | ldso/util/Makefile | 87 | ||||
| -rw-r--r-- | ldso/util/bswap.h | 54 | ||||
| -rw-r--r-- | ldso/util/ldconfig.c | 901 | ||||
| -rw-r--r-- | ldso/util/ldd.c | 664 | ||||
| -rw-r--r-- | ldso/util/readelf.c | 348 | ||||
| -rw-r--r-- | ldso/util/readsoname.c | 63 | ||||
| -rw-r--r-- | ldso/util/readsoname.h | 4 | ||||
| -rw-r--r-- | ldso/util/readsoname2.c | 115 |
10 files changed, 2 insertions, 2247 deletions
diff --git a/ldso/Makefile b/ldso/Makefile index d4e16ec91..9aa450015 100644 --- a/ldso/Makefile +++ b/ldso/Makefile @@ -23,7 +23,7 @@ TOPDIR=../ include $(TOPDIR)Rules.mak -ALL_SUBDIRS = ldso libdl util +ALL_SUBDIRS = ldso libdl all: headers @@ -33,16 +33,13 @@ else echo "Not building ld-uClibc" endif -shared: utils +shared: ifeq ($(strip $(BUILD_UCLIBC_LDSO)),y) $(MAKE) -C libdl; else echo "Not building libdl" endif -utils: - $(MAKE) -C util; - headers: $(LN) -fs $(TOPDIR)../include/elf.h include/ $(LN) -fs ../ldso/$(TARGET_ARCH)/boot1_arch.h include/ diff --git a/ldso/util/.cvsignore b/ldso/util/.cvsignore deleted file mode 100644 index 987ab3d9f..000000000 --- a/ldso/util/.cvsignore +++ /dev/null @@ -1,6 +0,0 @@ -ldd -ldd.target -readelf -readelf.target -ldconfig -elf.h diff --git a/ldso/util/Makefile b/ldso/util/Makefile deleted file mode 100644 index 0d0c96845..000000000 --- a/ldso/util/Makefile +++ /dev/null @@ -1,87 +0,0 @@ -# Makefile for uClibc -# -# Copyright (C) 2000,2001 Erik Andersen <andersen@uclibc.org> -# -# This program is free software; you can redistribute it and/or modify it under -# the terms of the GNU Library General Public License as published by the Free -# Software Foundation; either version 2 of the License, or (at your option) any -# later version. -# -# This program is distributed in the hope that it will be useful, but WITHOUT -# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS -# FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more -# details. -# -# You should have received a copy of the GNU Library General Public License -# along with this program; if not, write to the Free Software Foundation, Inc., -# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -# -# Derived in part from the Linux-8086 C library, the GNU C Library, and several -# other sundry sources. Files within this library are copyright by their -# respective copyright holders. - -TOPDIR=../../ -include $(TOPDIR)Rules.mak -TARGET_CC = $(TOPDIR)extra/gcc-uClibc/$(TARGET_ARCH)-uclibc-gcc - -TARGETS = ldd ldconfig -ifeq ($(OSTYPE),linux) -TARGETS += readelf -endif -#ifneq ($(strip $(LIBRARY_CACHE)),) -#TARGETS += ldconfig -#endif - -ifeq ($(strip $(LDSO_LDD_SUPPORT)),y) -XXFLAGS = -D__LDSO_LDD_SUPPORT -endif - -all: $(TARGETS) - -headers: - $(LN) -fs $(TOPDIR)include/elf.h - -readelf: readelf.c - $(HOSTCC) $(HOSTCFLAGS) -I. -I../include $^ -o $@ - strip -x -R .note -R .comment $@ - -readelf.target: readelf.c - $(TARGET_CC) $(CFLAGS) -Wl,-s $^ -o $@ $(LDADD_LIBFLOAT) - $(STRIPTOOL) -x -R .note -R .comment $@ - -readsoname.o: readsoname.c readsoname2.c - $(HOSTCC) $(HOSTCFLAGS) -I. -I../include -c $< -o $@ - strip -x -R .note -R .comment $*.o - -ldconfig: ldconfig.c readsoname.c - $(HOSTCC) $(HOSTCFLAGS) $(XXFLAGS) \ - -DUCLIBC_RUNTIME_PREFIX=\"$(RUNTIME_PREFIX)\" \ - -DUCLIBC_LDSO=\"$(UCLIBC_LDSO)\" -I. -I../include \ - $^ -o $@ - strip -x -R .note -R .comment $@ - -ldconfig.target: ldconfig.c readsoname.c - $(TARGET_CC) $(CFLAGS) $(XXFLAGS) -Wl,-s \ - -DUCLIBC_RUNTIME_PREFIX=\"$(RUNTIME_PREFIX)\" \ - -DUCLIBC_LDSO=\"$(UCLIBC_LDSO)\" -I. -I../include \ - $^ -o $@ $(LDADD_LIBFLOAT) - $(STRIPTOOL) -x -R .note -R .comment $@ - -ldd: ldd.c - $(HOSTCC) $(HOSTCFLAGS) $(XXFLAGS) \ - -DUCLIBC_RUNTIME_PREFIX=\"$(RUNTIME_PREFIX)\" \ - -DUCLIBC_LDSO=\"$(UCLIBC_LDSO)\" -I. -I../include \ - $^ -o $@ - strip -x -R .note -R .comment $@ - -ldd.target: ldd.c - $(TARGET_CC) $(CFLAGS) $(XXFLAGS) -Wl,-s \ - -DUCLIBC_RUNTIME_PREFIX=\"$(RUNTIME_PREFIX)\" \ - -DUCLIBC_LDSO=\"$(UCLIBC_LDSO)\" \ - $^ -o $@ $(LDADD_LIBFLOAT) - $(STRIPTOOL) -x -R .note -R .comment $@ - -clean: - $(RM) $(TARGETS) *.o *~ core *.target elf.h - -readelf.c readsoname.c ldconfig.c ldd.c: headers diff --git a/ldso/util/bswap.h b/ldso/util/bswap.h deleted file mode 100644 index 1742d2507..000000000 --- a/ldso/util/bswap.h +++ /dev/null @@ -1,54 +0,0 @@ -#ifndef _BSWAP_H -#define _BSWAP_H 1 - -#if !defined(__BYTE_ORDER) && defined(BYTE_ORDER) -# define __BYTE_ORDER = BYTE_ORDER -#endif - -#ifndef __BYTE_ORDER -#ifdef __linux__ -#include <endian.h> -#else -#define __LITTLE_ENDIAN 1234 /* least-significant byte first (vax, pc) */ -#define __BIG_ENDIAN 4321 /* most-significant byte first (IBM, net) */ -#define __PDP_ENDIAN 3412 /* LSB first in word, MSW first in long (pdp) */ - -#if defined(sun386) || defined(i386) -#define __BYTE_ORDER __LITTLE_ENDIAN -#endif - -#if defined(sparc) -#define __BYTE_ORDER __BIG_ENDIAN -#endif - -#endif /* __linux__ */ -#endif /* __BYTE_ORDER */ - - -#ifndef __BYTE_ORDER -# error "Undefined __BYTE_ORDER" -#endif - -#ifdef __linux__ -#include <byteswap.h> -#else -#include <string.h> -static __inline__ uint32_t bswap_32(uint32_t x) - { - uint32_t res; - - swab((void*)&x, (void*)&res, sizeof(uint32_t)); - - return res; - } - -static __inline__ uint16_t bswap_16(uint16_t x) - { - uint16_t res; - - swab((void*)&x, (void*)&res, sizeof(uint16_t)); - return res; - } -#endif - -#endif diff --git a/ldso/util/ldconfig.c b/ldso/util/ldconfig.c deleted file mode 100644 index 0b6890ff1..000000000 --- a/ldso/util/ldconfig.c +++ /dev/null @@ -1,901 +0,0 @@ -/* - * ldconfig - update shared library symlinks - * - * usage: ldconfig [-DvqnNX] [-f conf] [-C cache] [-r root] dir ... - * ldconfig -l [-Dv] lib ... - * ldconfig -p - * -D: debug mode, don't update links - * -v: verbose mode, print things as we go - * -q: quiet mode, don't print warnings - * -n: don't process standard directories - * -N: don't update the library cache - * -X: don't update the library links - * -l: library mode, manually link libraries - * -p: print the current library cache - * -f conf: use conf instead of /etc/ld.so.conf - * -C cache: use cache instead of /etc/ld.so.cache - * -r root: first, do a chroot to the indicated directory - * dir ...: directories to process - * lib ...: libraries to link - * - * Copyright 1994-2000 David Engel and Mitch D'Souza - * - * This program may be used for any purpose as long as this - * copyright notice is kept. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <stdarg.h> -#include <string.h> -#include <ctype.h> -#include <getopt.h> -#include <dirent.h> -#include <unistd.h> -#include <link.h> -#include <fcntl.h> -//#include <err.h> -#include <errno.h> -#include <sys/stat.h> -#include <sys/mman.h> -#include <ld_elf.h> -#include "readsoname.h" - -struct exec -{ - unsigned long a_info; /* Use macros N_MAGIC, etc for access */ - unsigned a_text; /* length of text, in bytes */ - unsigned a_data; /* length of data, in bytes */ - unsigned a_bss; /* length of uninitialized data area for file, in bytes */ - unsigned a_syms; /* length of symbol table data in file, in bytes */ - unsigned a_entry; /* start address */ - unsigned a_trsize; /* length of relocation info for text, in bytes */ - unsigned a_drsize; /* length of relocation info for data, in bytes */ -}; - -#if !defined (N_MAGIC) -#define N_MAGIC(exec) ((exec).a_info & 0xffff) -#endif -/* Code indicating object file or impure executable. */ -#define OMAGIC 0407 -/* Code indicating pure executable. */ -#define NMAGIC 0410 -/* Code indicating demand-paged executable. */ -#define ZMAGIC 0413 -/* This indicates a demand-paged executable with the header in the text. - The first page is unmapped to help trap NULL pointer references */ -#define QMAGIC 0314 -/* Code indicating core file. */ -#define CMAGIC 0421 - -char *___strtok = NULL; - -/* For SunOS */ -#ifndef PATH_MAX -#include <limits.h> -#define PATH_MAX _POSIX_PATH_MAX -#endif - -/* For SunOS */ -#ifndef N_MAGIC -#define N_MAGIC(exec) ((exec).a_magic & 0xffff) -#endif - -#define EXIT_OK 0 -#define EXIT_FATAL 128 - -char *prog = NULL; -int debug = 0; /* debug mode */ -int verbose = 0; /* verbose mode */ -int libmode = 0; /* library mode */ -int nocache = 0; /* don't build cache */ -int nolinks = 0; /* don't update links */ - -char *conffile = LDSO_CONF; /* default conf file */ -char *cachefile = LDSO_CACHE; /* default cache file */ -void cache_print(void); -void cache_dolib(const char *dir, const char *so, int libtype); -void cache_write(void); - -/* These two are used internally -- you shouldn't need to use them */ -static void verror_msg(const char *s, va_list p) -{ - fflush(stdout); - fprintf(stderr, "%s: ", prog); - vfprintf(stderr, s, p); -} - -extern void warnx(const char *s, ...) -{ - va_list p; - - va_start(p, s); - verror_msg(s, p); - va_end(p); - fprintf(stderr, "\n"); -} - -extern void err(int errnum, const char *s, ...) -{ - va_list p; - - va_start(p, s); - verror_msg(s, p); - va_end(p); - fprintf(stderr, "\n"); - exit(errnum); -} - -static void vperror_msg(const char *s, va_list p) -{ - int err = errno; - - if (s == 0) - s = ""; - verror_msg(s, p); - if (*s) - s = ": "; - fprintf(stderr, "%s%s\n", s, strerror(err)); -} - -extern void warn(const char *s, ...) -{ - va_list p; - - va_start(p, s); - vperror_msg(s, p); - va_end(p); -} - -void *xmalloc(size_t size) -{ - void *ptr; - if ((ptr = malloc(size)) == NULL) - err(EXIT_FATAL,"out of memory"); - return ptr; -} - -char *xstrdup(const char *str) -{ - char *ptr; - if ((ptr = strdup(str)) == NULL) - err(EXIT_FATAL,"out of memory"); - return ptr; -} - -/* If shared library, return a malloced copy of the soname and set the - type, else return NULL. - - expected_type should be either LIB_ANY or one of the following:- - LIB_DLL - LIB_ELF - LIB_ELF_LIBC5 - LIB_ELF_LIBC6 - - If the lib is ELF and we can not deduce the type the type will - be set based on expected_type. - - If the expected, actual/deduced types missmatch we display a warning - and use the actual/deduced type. -*/ -char *is_shlib(const char *dir, const char *name, int *type, - int *islink, int expected_type) -{ - char *good = NULL; - char *cp, *cp2; - FILE *file; - struct exec exec; - ElfW(Ehdr) *elf_hdr; - struct stat statbuf; - char buff[4096]; - - /* see if name is of the form libZ.so* */ - if ((strncmp(name, "lib", 3) == 0 || strncmp(name, "ld-", 3) == 0) && \ - name[strlen(name)-1] != '~' && (cp = strstr(name, ".so"))) - { - /* find the start of the Vminor part, if any */ - if (cp[3] == '.' && (cp2 = strchr(cp + 4, '.'))) - cp = cp2; - else - cp = cp + strlen(cp); - - /* construct the full path name */ - sprintf(buff, "%s%s%s", dir, (*dir && strcmp(dir, "/")) ? - "/" : "", name); - - /* first, make sure it's a regular file */ - if (lstat(buff, &statbuf)) - warn("skipping %s", buff); - else if (!S_ISREG(statbuf.st_mode) && !S_ISLNK(statbuf.st_mode)) - warnx("%s is not a regular file or symlink, skipping", buff); - else - { - /* is it a regular file or a symlink */ - *islink = S_ISLNK(statbuf.st_mode); - - /* then try opening it */ - if (!(file = fopen(buff, "rb"))) - warn("skipping %s", buff); - else - { - /* now make sure it's a shared library */ - if (fread(&exec, sizeof exec, 1, file) < 1) - warnx("can't read header from %s, skipping", buff); - else if (N_MAGIC(exec) != ZMAGIC && N_MAGIC(exec) != QMAGIC) - { - elf_hdr = (ElfW(Ehdr) *) &exec; - if (elf_hdr->e_ident[0] != 0x7f || - strncmp(&elf_hdr->e_ident[1], "ELF",3) != 0) - { - /* silently ignore linker scripts */ - if (strncmp((char *)&exec, "/* GNU ld", 9) != 0) - warnx("%s is not a shared library, skipping", buff); - } - else - { - /* always call readsoname to update type */ - if(expected_type == LIB_DLL) { - warnx("%s is not an a.out library, its ELF!\n", buff); - expected_type=LIB_ANY; - } - *type = LIB_ELF; - good = readsoname(buff, file, expected_type, type, - elf_hdr->e_ident[EI_CLASS]); - if (good == NULL || *islink) - { - if (good != NULL) - free(good); - good = xstrdup(name); - } - else - { - /* if the soname does not match the filename, - issue a warning, but only in debug mode. */ - int len = strlen(good); - if (debug && (strncmp(good, name, len) != 0 || - (name[len] != '\0' && name[len] != '.'))) - warnx("%s has inconsistent soname (%s)", buff, good); - } - } - } - else - { - if (*islink) - good = xstrdup(name); - else - { - good = xmalloc(cp - name + 1); - strncpy(good, name, cp - name); - good[cp - name] = '\0'; - } - if(expected_type != LIB_ANY && expected_type != LIB_DLL) - { - warnx("%s is not an ELF library, its an a.out DLL!", buff); - expected_type=LIB_ANY; - } - - *type = LIB_DLL; - } - fclose(file); - } - } - } - - return good; -} - -/* update the symlink to new library */ -void link_shlib(const char *dir, const char *file, const char *so) -{ - int change = 1; - char libname[4096]; - char linkname[4096]; - struct stat libstat; - struct stat linkstat; - - /* construct the full path names */ - sprintf(libname, "%s/%s", dir, file); - sprintf(linkname, "%s/%s", dir, so); - - /* see if a link already exists */ - if (!stat(linkname, &linkstat)) - { - /* now see if it's the one we want */ - if (stat(libname, &libstat)) - warn("can't stat %s", libname); - else if (libstat.st_dev == linkstat.st_dev && - libstat.st_ino == linkstat.st_ino) - change = 0; - } - - /* then update the link, if required */ - if (change > 0 && !nolinks) - { - if (!lstat(linkname, &linkstat)) - { - if (!S_ISLNK(linkstat.st_mode)) - { - warnx("%s is not a symlink", linkname); - change = -1; - } - else if (remove(linkname)) - { - warn("can't unlink %s", linkname); - change = -1; - } - } - if (change > 0) - { - if (symlink(file, linkname)) - { - warn("can't link %s to %s", linkname, file); - change = -1; - } - } - } - - /* some people like to know what we're doing */ - if (verbose > 0) - printf("\t%s => %s%s\n", so, file, - change < 0 ? " (SKIPPED)" : - (change > 0 ? " (changed)" : "")); - - return; -} - -/* figure out which library is greater */ -int libcmp(char *p1, char *p2) -{ - while (*p1) - { - if (isdigit(*p1) && isdigit(*p2)) - { - /* must compare this numerically */ - int v1, v2; - v1 = strtoul(p1, &p1, 10); - v2 = strtoul(p2, &p2, 10); - if (v1 != v2) - return v1 - v2; - } - else if (isdigit(*p1) && !isdigit(*p2)) - return 1; - else if (!isdigit(*p1) && isdigit(*p2)) - return -1; - else if (*p1 != *p2) - return *p1 - *p2; - else - p1++, p2++; - } - - return *p1 - *p2; -} - -struct lib -{ - char *so; /* soname of a library */ - char *name; /* name of a library */ - int libtype; /* type of a library */ - int islink; /* is it a symlink */ - struct lib *next; /* next library in list */ -}; - -/* update all shared library links in a directory */ -void scan_dir(const char *rawname) -{ - DIR *dir; - const char *name; - struct dirent *ent; - char *so, *path, *path_n; - struct lib *lp, *libs = NULL; - int i, libtype, islink, expected_type = LIB_ANY; - - /* We need a writable copy of this string */ - path = strdup(rawname); - if (!path) { - err(EXIT_FATAL, "Out of memory!\n"); - } - /* Eliminate all double //s */ - path_n=path; - while((path_n=strstr(path_n, "//"))) { - i = strlen(path_n); - memmove(path_n, path_n+1, i-1); - *(path_n + i - 1)='\0'; - } - name = path; - -#if 0 - char *t; - /* Check for an embedded expected type */ - t=strrchr(name, '='); - if( t ) - { - *t++ = '\0'; /* Skip = char */ - if(strcasecmp(t, "libc4") == 0) - { - expected_type = LIB_DLL; - } - else - { - if(strcasecmp(t, "libc5") == 0) - { - expected_type = LIB_ELF_LIBC5; - } - else - { - if(strcasecmp(t, "libc6") == 0) - { - expected_type = LIB_ELF_LIBC6; - } - else - { - if(strcasecmp(t, "libc0") == 0) - { - expected_type = LIB_ELF_LIBC0; - } - else - { - warnx("Unknown type field '%s' for dir '%s' - ignored\n", t, name); - expected_type = LIB_ANY; - } - } - } - } - } -#endif - - /* let 'em know what's going on */ - if (verbose > 0) - printf("%s:\n", name); - - /* if we can't open it, we can't do anything */ - if ((dir = opendir(name)) == NULL) - { - warn("skipping %s", name); - free(path); - return; - } - - /* yes, we have to look at every single file */ - while ((ent = readdir(dir)) != NULL) - { - /* if it's not a shared library, don't bother */ - if ((so = is_shlib(name, ent->d_name, &libtype, &islink, expected_type)) == NULL) - continue; - - /* have we already seen one with the same so name? */ - for (lp = libs; lp; lp = lp->next) - { - if (strcmp(so, lp->so) == 0) - { - /* we have, which one do we want to use? */ - if ((!islink && lp->islink) || - (islink == lp->islink && - libcmp(ent->d_name, lp->name) > 0)) - { - /* let's use the new one */ - free(lp->name); - lp->name = xstrdup(ent->d_name); - lp->libtype = libtype; - lp->islink = islink; - } - break; - } - } - - /* congratulations, you're the first one we've seen */ - if (!lp) - { - lp = xmalloc(sizeof *lp); - lp->so = xstrdup(so); - lp->name = xstrdup(ent->d_name); - lp->libtype = libtype; - lp->islink = islink; - lp->next = libs; - libs = lp; - } - - free(so); - } - - /* don't need this any more */ - closedir(dir); - - /* now we have all the latest libs, update the links */ - for (lp = libs; lp; lp = lp->next) - { - if (!lp->islink) - link_shlib(name, lp->name, lp->so); -#ifdef USE_CACHE - if (!nocache) - cache_dolib(name, lp->so, lp->libtype); -#endif - } - - /* always try to clean up after ourselves */ - while (libs) - { - lp = libs->next; - free(libs->so); - free(libs->name); - free(libs); - libs = lp; - } - - free(path); - return; -} - -/* return the list of system-specific directories */ -char *get_extpath(void) -{ - char *res = NULL, *cp; - FILE *file; - struct stat stat; - - if ((file = fopen(conffile, "r")) != NULL) - { - fstat(fileno(file), &stat); - res = xmalloc(stat.st_size + 1); - fread(res, 1, stat.st_size, file); - fclose(file); - res[stat.st_size] = '\0'; - - /* convert comments fo spaces */ - for (cp = res; *cp; /*nada*/) { - if (*cp == '#') { - do - *cp++ = ' '; - while (*cp && *cp != '\n'); - } else { - cp++; - } - } - } - - return res; -} - -#ifdef USE_CACHE -typedef struct liblist -{ - int flags; - int sooffset; - int liboffset; - char *soname; - char *libname; - struct liblist *next; -} liblist_t; - -static header_t magic = { LDSO_CACHE_MAGIC, LDSO_CACHE_VER, 0 }; -static liblist_t *lib_head = NULL; - -static int liblistcomp(liblist_t *x, liblist_t *y) -{ - int res; - - if ((res = libcmp(x->soname, y->soname)) == 0) - { - res = libcmp(strrchr(x->libname, '/') + 1, - strrchr(y->libname, '/') + 1); - } - - return res; -} - -void cache_dolib(const char *dir, const char *so, int libtype) -{ - char fullpath[PATH_MAX]; - liblist_t *new_lib, *cur_lib; - - magic.nlibs++; - sprintf(fullpath, "%s/%s", dir, so); - new_lib = xmalloc(sizeof (liblist_t)); - new_lib->flags = libtype; - new_lib->soname = xstrdup(so); - new_lib->libname = xstrdup(fullpath); - - if (lib_head == NULL || liblistcomp(new_lib, lib_head) > 0) - { - new_lib->next = lib_head; - lib_head = new_lib; - } - else - { - for (cur_lib = lib_head; cur_lib->next != NULL && - liblistcomp(new_lib, cur_lib->next) <= 0; - cur_lib = cur_lib->next) - /* nothing */; - new_lib->next = cur_lib->next; - cur_lib->next = new_lib; - } -} - -void cache_write(void) -{ - int cachefd; - int stroffset = 0; - char tempfile[4096]; - liblist_t *cur_lib; - - if (!magic.nlibs) - return; - - sprintf(tempfile, "%s~", cachefile); - - if (unlink(tempfile) && errno != ENOENT) - err(EXIT_FATAL,"can't unlink %s (%s)", tempfile, strerror(errno)); - - if ((cachefd = creat(tempfile, 0644)) < 0) - err(EXIT_FATAL,"can't create %s (%s)", tempfile, strerror(errno)); - - if (write(cachefd, &magic, sizeof (header_t)) != sizeof (header_t)) - err(EXIT_FATAL,"can't write %s (%s)", tempfile, strerror(errno)); - - for (cur_lib = lib_head; cur_lib != NULL; cur_lib = cur_lib->next) - { - cur_lib->sooffset = stroffset; - stroffset += strlen(cur_lib->soname) + 1; - cur_lib->liboffset = stroffset; - stroffset += strlen(cur_lib->libname) + 1; - if (write(cachefd, cur_lib, sizeof (libentry_t)) != - sizeof (libentry_t)) - err(EXIT_FATAL,"can't write %s (%s)", tempfile, strerror(errno)); - } - - for (cur_lib = lib_head; cur_lib != NULL; cur_lib = cur_lib->next) - { - if (write(cachefd, cur_lib->soname, strlen(cur_lib->soname) + 1) - != strlen(cur_lib->soname) + 1) - err(EXIT_FATAL,"can't write %s (%s)", tempfile, strerror(errno)); - if (write(cachefd, cur_lib->libname, strlen(cur_lib->libname) + 1) - != strlen(cur_lib->libname) + 1) - err(EXIT_FATAL,"can't write %s (%s)", tempfile, strerror(errno)); - } - - if (close(cachefd)) - err(EXIT_FATAL,"can't close %s (%s)", tempfile, strerror(errno)); - - if (chmod(tempfile, 0644)) - err(EXIT_FATAL,"can't chmod %s (%s)", tempfile, strerror(errno)); - - if (rename(tempfile, cachefile)) - err(EXIT_FATAL,"can't rename %s (%s)", tempfile, strerror(errno)); -} - -void cache_print(void) -{ - caddr_t c; - struct stat st; - int fd = 0; - char *strs; - header_t *header; - libentry_t *libent; - - if (stat(cachefile, &st) || (fd = open(cachefile, O_RDONLY))<0) - err(EXIT_FATAL,"can't read %s (%s)", cachefile, strerror(errno)); - if ((c = mmap(0,st.st_size, PROT_READ, MAP_SHARED ,fd, 0)) == (caddr_t)-1) - err(EXIT_FATAL,"can't map %s (%s)", cachefile, strerror(errno)); - close(fd); - - if (memcmp(((header_t *)c)->magic, LDSO_CACHE_MAGIC, LDSO_CACHE_MAGIC_LEN)) - err(EXIT_FATAL,"%s cache corrupt", cachefile); - - if (memcmp(((header_t *)c)->version, LDSO_CACHE_VER, LDSO_CACHE_VER_LEN)) - err(EXIT_FATAL,"wrong cache version - expected %s", LDSO_CACHE_VER); - - header = (header_t *)c; - libent = (libentry_t *)(c + sizeof (header_t)); - strs = (char *)&libent[header->nlibs]; - - printf("%d libs found in cache `%s' (version %s)\n", - header->nlibs, cachefile, LDSO_CACHE_VER); - - for (fd = 0; fd < header->nlibs; fd++) - { - printf("\t%s ", strs + libent[fd].sooffset); - switch (libent[fd].flags & ~LIB_ELF64) - { - case LIB_DLL: - printf("(libc4)"); - break; - case LIB_ELF: - printf("(ELF%s)", libent[fd].flags & LIB_ELF64 ? "/64" : ""); - break; - case LIB_ELF_LIBC5: - case LIB_ELF_LIBC6: - printf("(libc%d%s)", (libent[fd].flags & ~LIB_ELF64) + 3, - libent[fd].flags & LIB_ELF64 ? "/64" : ""); - break; - default: - printf("(unknown)"); - break; - } - printf(" => %s\n", strs + libent[fd].liboffset); - } - - munmap (c,st.st_size); -} -#else -void cache_print(void) -{ - warnx("Cache support disabled\n"); -} -#endif - -void usage(void) -{ - fprintf(stderr, - "ldconfig - updates symlinks for shared libraries\n\n" - "Usage: ldconfig [-DvqnNX] [-f conf] [-C cache] [-r root] dir ...\n" - " ldconfig -l [-Dv] lib ...\n" - " ldconfig -p\n\nOptions:\n" - "\t-D:\t\tdebug mode, don't update links\n" - "\t-v:\t\tverbose mode, print things as we go\n" - "\t-q:\t\tquiet mode, don't print warnings\n" - "\t-n:\t\tdon't process standard directories\n" - "\t-N:\t\tdon't update the library cache\n" - "\t-X:\t\tdon't update the library links\n" - "\t-l:\t\tlibrary mode, manually link libraries\n" - "\t-p:\t\tprint the current library cache\n" - "\t-f conf :\tuse conf instead of %s\n" - "\t-C cache:\tuse cache instead of %s\n" - "\t-r root :\tfirst, do a chroot to the indicated directory\n" - "\tdir ... :\tdirectories to process\n" - "\tlib ... :\tlibraries to link\n\n", - LDSO_CONF, LDSO_CACHE - ); - exit(EXIT_FATAL); -} - -#define DIR_SEP ":, \t\n" -int main(int argc, char **argv) -{ - int i, c; - int nodefault = 0; - int printcache = 0; - char *cp, *dir, *so; - char *extpath; - int libtype, islink; - char *chroot_dir = NULL; - - prog = argv[0]; - opterr = 0; - - while ((c = getopt(argc, argv, "DvqnNXlpf:C:r:")) != EOF) - switch (c) - { - case 'D': - debug = 1; /* debug mode */ - nocache = 1; - nolinks = 1; - verbose = 1; - break; - case 'v': - verbose = 1; /* verbose mode */ - break; - case 'q': - if (verbose <= 0) - verbose = -1; /* quiet mode */ - break; - case 'n': - nodefault = 1; /* no default dirs */ - nocache = 1; - break; - case 'N': - nocache = 1; /* don't build cache */ - break; - case 'X': - nolinks = 1; /* don't update links */ - break; - case 'l': - libmode = 1; /* library mode */ - break; - case 'p': - printcache = 1; /* print cache */ - break; - case 'f': - conffile = optarg; /* alternate conf file */ - break; - case 'C': - cachefile = optarg; /* alternate cache file */ - break; - case 'r': - chroot_dir = optarg; - break; - default: - usage(); - break; - - /* THE REST OF THESE ARE UNDOCUMENTED AND MAY BE REMOVED - IN FUTURE VERSIONS. */ - } - - if (chroot_dir && *chroot_dir) { - if (chroot(chroot_dir) < 0) - err(EXIT_FATAL,"couldn't chroot to %s (%s)", chroot_dir, strerror(errno)); - if (chdir("/") < 0) - err(EXIT_FATAL,"couldn't chdir to / (%s)", strerror(errno)); - } - - /* allow me to introduce myself, hi, my name is ... */ - if (verbose > 0) - printf("%s: uClibc version\n", argv[0]); - - if (printcache) - { - /* print the cache -- don't you trust me? */ - cache_print(); - exit(EXIT_OK); - } - else if (libmode) - { - /* so you want to do things manually, eh? */ - - /* ok, if you're so smart, which libraries do we link? */ - for (i = optind; i < argc; i++) - { - /* split into directory and file parts */ - if (!(cp = strrchr(argv[i], '/'))) - { - dir = "."; /* no dir, only a filename */ - cp = argv[i]; - } - else - { - if (cp == argv[i]) - dir = "/"; /* file in root directory */ - else - dir = argv[i]; - *cp++ = '\0'; /* neither of the above */ - } - - /* we'd better do a little bit of checking */ - if ((so = is_shlib(dir, cp, &libtype, &islink, LIB_ANY)) == NULL) - err(EXIT_FATAL,"%s%s%s is not a shared library", dir, - (*dir && strcmp(dir, "/")) ? "/" : "", cp); - - /* so far, so good, maybe he knows what he's doing */ - link_shlib(dir, cp, so); - } - } - else - { - /* the lazy bum want's us to do all the work for him */ - - /* don't cache dirs on the command line */ - int nocache_save = nocache; - nocache = 1; - - /* OK, which directories should we do? */ - for (i = optind; i < argc; i++) - scan_dir(argv[i]); - - /* restore the desired caching state */ - nocache = nocache_save; - - /* look ma, no defaults */ - if (!nodefault) - { - /* I guess the defaults aren't good enough */ - if ((extpath = get_extpath())) - { - for (cp = strtok(extpath, DIR_SEP); cp; - cp = strtok(NULL, DIR_SEP)) - scan_dir(cp); - free(extpath); - } - - scan_dir(UCLIBC_RUNTIME_PREFIX "/usr/X11R6/lib"); - scan_dir(UCLIBC_RUNTIME_PREFIX "/usr/lib"); - scan_dir(UCLIBC_RUNTIME_PREFIX "/lib"); - } - -#ifdef USE_CACHE - if (!nocache) - cache_write(); -#endif - } - - exit(EXIT_OK); -} - diff --git a/ldso/util/ldd.c b/ldso/util/ldd.c deleted file mode 100644 index 3ea41b424..000000000 --- a/ldso/util/ldd.c +++ /dev/null @@ -1,664 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * A small little ldd implementation for uClibc - * - * Copyright (C) 2000 by Lineo, inc and Erik Andersen - * Copyright (C) 2000-2002 Erik Andersen <andersee@debian.org> - * - * Several functions in this file (specifically, elf_find_section_type(), - * elf_find_phdr_type(), and elf_find_dynamic(), were stolen from elflib.c from - * elfvector (http://www.BitWagon.com/elfvector.html) by John F. Reiser - * <jreiser@BitWagon.com>, which is copyright 2000 BitWagon Software LLC - * (GPL2). - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - - -#define _GNU_SOURCE -#include <stdlib.h> -#include <stdio.h> -#include <fcntl.h> -#include <string.h> -#include <unistd.h> -#include <sys/mman.h> -#include <sys/stat.h> -#include <sys/types.h> -#include <sys/types.h> -#include <sys/wait.h> - -#include "bswap.h" -#if defined (sun) -#include "link.h" -#else -#include "elf.h" -#endif - -#ifdef DMALLOC -#include <dmalloc.h> -#endif - -#if defined(__arm__) -#define MATCH_MACHINE(x) (x == EM_ARM) -#define ELFCLASSM ELFCLASS32 -#endif - -#if defined(__s390__) -#define MATCH_MACHINE(x) (x == EM_S390) -#define ELFCLASSM ELFCLASS32 -#endif - -#if defined(__i386__) -#ifndef EM_486 -#define MATCH_MACHINE(x) (x == EM_386) -#else -#define MATCH_MACHINE(x) (x == EM_386 || x == EM_486) -#endif -#define ELFCLASSM ELFCLASS32 -#endif - -#if defined(__mc68000__) -#define MATCH_MACHINE(x) (x == EM_68K) -#define ELFCLASSM ELFCLASS32 -#endif - -#if defined(__mips__) -#define MATCH_MACHINE(x) (x == EM_MIPS || x == EM_MIPS_RS3_LE) -#define ELFCLASSM ELFCLASS32 -#endif - -#if defined(__powerpc__) -#define MATCH_MACHINE(x) (x == EM_PPC) -#define ELFCLASSM ELFCLASS32 -#endif - -#if defined(__sh__) -#define MATCH_MACHINE(x) (x == EM_SH) -#define ELFCLASSM ELFCLASS32 -#endif - -#if defined (__v850e__) -#define MATCH_MACHINE(x) ((x) == EM_V850 || (x) == EM_CYGNUS_V850) -#define ELFCLASSM ELFCLASS32 -#endif - -#if defined (__sparc__) -#define MATCH_MACHINE(x) ((x) == EM_SPARC || (x) == EM_SPARC32PLUS) -#define ELFCLASSM ELFCLASS32 -#endif - - -#ifndef MATCH_MACHINE -#warning "You really should add a MATCH_MACHINE() macro for your architecture" -#endif - -#if __BYTE_ORDER == __LITTLE_ENDIAN -#define ELFDATAM ELFDATA2LSB -#elif __BYTE_ORDER == __BIG_ENDIAN -#define ELFDATAM ELFDATA2MSB -#endif - -struct library { - char *name; - int resolved; - char *path; - struct library *next; -}; -struct library *lib_list = NULL; -char not_found[] = "not found"; -char *interp = NULL; -char *interp_dir = NULL; -int byteswap; -static int interpreter_already_found=0; - -inline uint32_t byteswap32_to_host(uint32_t value) -{ - if (byteswap==1) { - return(bswap_32(value)); - } else { - return(value); - } -} - - - -Elf32_Shdr * elf_find_section_type( int key, Elf32_Ehdr *ehdr) -{ - int j; - Elf32_Shdr *shdr; - shdr = (Elf32_Shdr *)(ehdr->e_shoff + (char *)ehdr); - for (j = ehdr->e_shnum; --j>=0; ++shdr) { - if (key==(int)byteswap32_to_host(shdr->sh_type)) { - return shdr; - } - } - return NULL; -} - -Elf32_Phdr * elf_find_phdr_type( int type, Elf32_Ehdr *ehdr) -{ - int j; - Elf32_Phdr *phdr = (Elf32_Phdr *)(ehdr->e_phoff + (char *)ehdr); - for (j = ehdr->e_phnum; --j>=0; ++phdr) { - if (type==(int)byteswap32_to_host(phdr->p_type)) { - return phdr; - } - } - return NULL; -} - -/* Returns value if return_val==1, ptr otherwise */ -void * elf_find_dynamic(int const key, Elf32_Dyn *dynp, - Elf32_Ehdr *ehdr, int return_val) -{ - Elf32_Phdr *pt_text = elf_find_phdr_type(PT_LOAD, ehdr); - unsigned tx_reloc = byteswap32_to_host(pt_text->p_vaddr) - byteswap32_to_host(pt_text->p_offset); - for (; DT_NULL!=byteswap32_to_host(dynp->d_tag); ++dynp) { - if (key == (int)byteswap32_to_host(dynp->d_tag)) { - if (return_val == 1) - return (void *)(intptr_t)byteswap32_to_host(dynp->d_un.d_val); - else - return (void *)(byteswap32_to_host(dynp->d_un.d_val) - tx_reloc + (char *)ehdr ); - } - } - return NULL; -} - -int check_elf_header(Elf32_Ehdr *const ehdr) -{ - if (! ehdr || strncmp((void *)ehdr, ELFMAG, SELFMAG) != 0 || - ehdr->e_ident[EI_CLASS] != ELFCLASS32 || - ehdr->e_ident[EI_VERSION] != EV_CURRENT) - { - return 1; - } - - /* Check if the target endianness matches the host's endianness */ - byteswap = 0; -#if __BYTE_ORDER == __LITTLE_ENDIAN - if (ehdr->e_ident[5] == ELFDATA2MSB) { - /* Ick -- we will have to byte-swap everything */ - byteswap = 1; - } -#elif __BYTE_ORDER == __BIG_ENDIAN - if (ehdr->e_ident[5] == ELFDATA2LSB) { - /* Ick -- we will have to byte-swap everything */ - byteswap = 1; - } -#else -#error Unknown host byte order! -#endif - - /* Be vary lazy, and only byteswap the stuff we use */ - if (byteswap==1) { - ehdr->e_type=bswap_16(ehdr->e_type); - ehdr->e_phoff=bswap_32(ehdr->e_phoff); - ehdr->e_shoff=bswap_32(ehdr->e_shoff); - ehdr->e_phnum=bswap_16(ehdr->e_phnum); - ehdr->e_shnum=bswap_16(ehdr->e_shnum); - } - - return 0; -} - -/* This function's behavior must exactly match that - * in uClibc/ldso/ldso/readelflib1.c */ -static void search_for_named_library(char *name, char *result, const char *path_list) -{ - int i, count = 1; - char *path, *path_n; - struct stat filestat; - - /* We need a writable copy of this string */ - path = strdup(path_list); - if (!path) { - fprintf(stderr, "Out of memory!\n"); - exit(EXIT_FAILURE); - } - /* Eliminate all double //s */ - path_n=path; - while((path_n=strstr(path_n, "//"))) { - i = strlen(path_n); - memmove(path_n, path_n+1, i-1); - *(path_n + i - 1)='\0'; - } - - /* Replace colons with zeros in path_list and count them */ - for(i=strlen(path); i > 0; i--) { - if (path[i]==':') { - path[i]=0; - count++; - } - } - path_n = path; - for (i = 0; i < count; i++) { - strcpy(result, path_n); - strcat(result, "/"); - strcat(result, name); - if (stat (result, &filestat) == 0 && filestat.st_mode & S_IRUSR) { - free(path); - return; - } - path_n += (strlen(path_n) + 1); - } - free(path); - *result = '\0'; -} - -void locate_library_file(Elf32_Ehdr* ehdr, Elf32_Dyn* dynamic, int is_suid, struct library *lib) -{ - char *buf; - char *path; - struct stat filestat; - - /* If this is a fully resolved name, our job is easy */ - if (stat (lib->name, &filestat) == 0) { - lib->path = lib->name; - return; - } - - /* We need some elbow room here. Make some room...*/ - buf = malloc(1024); - if (!buf) { - fprintf(stderr, "Out of memory!\n"); - exit(EXIT_FAILURE); - } - - /* This function must match the behavior of _dl_load_shared_library - * in readelflib1.c or things won't work out as expected... */ - - /* The ABI specifies that RPATH is searched first, so do that now. */ - path = (char *)elf_find_dynamic(DT_RPATH, dynamic, ehdr, 0); - if (path) { - search_for_named_library(lib->name, buf, path); - if (*buf != '\0') { - lib->path = buf; - return; - } - } - - /* Next check LD_{ELF_}LIBRARY_PATH if specified and allowed. - * Since this app doesn't actually run an executable I will skip - * the suid check, and just use LD_{ELF_}LIBRARY_PATH if set */ - if (is_suid==1) - path = NULL; - else - path = getenv("LD_LIBRARY_PATH"); - if (path) { - search_for_named_library(lib->name, buf, path); - if (*buf != '\0') { - lib->path = buf; - return; - } - } - -#ifdef USE_CACHE - /* FIXME -- add code to check the Cache here */ -#endif - - - /* Next look for libraries wherever the shared library - * loader was installed -- this is usually where we - * should find things... */ - if (interp_dir) { - search_for_named_library(lib->name, buf, interp_dir); - if (*buf != '\0') { - lib->path = buf; - return; - } - } - - /* Lastly, search the standard list of paths for the library. - This list must exactly match the list in uClibc/ldso/ldso/readelflib1.c */ - path = UCLIBC_RUNTIME_PREFIX "usr/X11R6/lib:" - UCLIBC_RUNTIME_PREFIX "usr/lib:" - UCLIBC_RUNTIME_PREFIX "lib:" - "/usr/lib:" - "/lib"; - search_for_named_library(lib->name, buf, path); - if (*buf != '\0') { - lib->path = buf; - } else { - free(buf); - lib->path = not_found; - } -} - -static int add_library(Elf32_Ehdr* ehdr, Elf32_Dyn* dynamic, int is_setuid, char *s) -{ - char *tmp, *tmp1, *tmp2; - struct library *cur, *newlib=lib_list; - - if (!s || !strlen(s)) - return 1; - - tmp = s; - while (*tmp) { - if (*tmp == '/') - s = tmp + 1; - tmp++; - } - - /* We add libc.so.0 elsewhere */ - if (interpreter_already_found && (tmp=strrchr(interp, '/')) != NULL) - { - int len = strlen(interp_dir); - if (strcmp(s, interp+1+len)==0) - return 1; - } - - for (cur = lib_list; cur; cur=cur->next) { - /* Check if this library is already in the list */ - tmp1 = tmp2 = cur->name; - while (*tmp1) { - if (*tmp1 == '/') - tmp2 = tmp1 + 1; - tmp1++; - } - if(strcmp(tmp2, s)==0) { - //printf("find_elf_interpreter is skipping '%s' (already in list)\n", cur->name); - return 0; - } - } - - /* Ok, this lib needs to be added to the list */ - newlib = malloc(sizeof(struct library)); - if (!newlib) - return 1; - newlib->name = malloc(strlen(s)+1); - strcpy(newlib->name, s); - newlib->resolved = 0; - newlib->path = NULL; - newlib->next = NULL; - - /* Now try and locate where this library might be living... */ - locate_library_file(ehdr, dynamic, is_setuid, newlib); - - //printf("add_library is adding '%s' to '%s'\n", newlib->name, newlib->path); - if (!lib_list) { - lib_list = newlib; - } else { - for (cur = lib_list; cur->next; cur=cur->next); /* nothing */ - cur->next = newlib; - } - return 0; -} - - -static void find_needed_libraries(Elf32_Ehdr* ehdr, Elf32_Dyn* dynamic, char *strtab, int is_setuid) -{ - Elf32_Dyn *dyns; - - for (dyns=dynamic; byteswap32_to_host(dyns->d_tag)!=DT_NULL; ++dyns) { - if (DT_NEEDED == byteswap32_to_host(dyns->d_tag)) { - add_library(ehdr, dynamic, is_setuid, - (char*)strtab + byteswap32_to_host(dyns->d_un.d_val)); - } - } -} - -static struct library * find_elf_interpreter(Elf32_Ehdr* ehdr) -{ - Elf32_Phdr *phdr; - - if (interpreter_already_found==1) - return NULL; - phdr = elf_find_phdr_type(PT_INTERP, ehdr); - if (phdr) { - struct library *cur, *newlib=NULL; - char *s = (char*)ehdr + byteswap32_to_host(phdr->p_offset); - - char *tmp, *tmp1; - interp = strdup(s); - interp_dir = strdup(s); - tmp = strrchr(interp_dir, '/'); - if (*tmp) - *tmp = '\0'; - else { - free(interp_dir); - interp_dir = interp; - } - tmp1 = tmp = s; - while (*tmp) { - if (*tmp == '/') - tmp1 = tmp + 1; - tmp++; - } - for (cur = lib_list; cur; cur=cur->next) { - /* Check if this library is already in the list */ - if(strcmp(cur->name, tmp1)==0) { - //printf("find_elf_interpreter is replacing '%s' (already in list)\n", cur->name); - newlib = cur; - free(newlib->name); - free(newlib->path); - return NULL; - } - } - if (newlib == NULL) - newlib = malloc(sizeof(struct library)); - if (!newlib) - return NULL; - newlib->name = malloc(strlen(s)+1); - strcpy(newlib->name, s); - newlib->path = newlib->name; - newlib->resolved = 1; - newlib->next = NULL; - -#if 0 - //printf("find_elf_interpreter is adding '%s' to '%s'\n", newlib->name, newlib->path); - if (!lib_list) { - lib_list = newlib; - } else { - for (cur = lib_list; cur->next; cur=cur->next); /* nothing */ - cur->next = newlib; - } -#endif - interpreter_already_found=1; - return newlib; - } - return NULL; -} - -/* map the .so, and locate interesting pieces */ -int find_dependancies(char* filename) -{ - int is_suid = 0; - FILE *thefile; - struct stat statbuf; - char *dynstr=NULL; - Elf32_Ehdr *ehdr = NULL; - Elf32_Shdr *dynsec = NULL; - Elf32_Dyn *dynamic = NULL; - struct library *interp; - - if (filename == not_found) - return 0; - - if (!filename) { - fprintf(stderr, "No filename specified.\n"); - return -1; - } - if (!(thefile = fopen(filename, "r"))) { - perror(filename); - return -1; - } - if (fstat(fileno(thefile), &statbuf) < 0) { - perror(filename); - return -1; - } - - if ((size_t)statbuf.st_size < sizeof(Elf32_Ehdr)) - goto foo; - - if (!S_ISREG(statbuf.st_mode)) - goto foo; - - /* mmap the file to make reading stuff from it effortless */ - ehdr = (Elf32_Ehdr *)mmap(0, statbuf.st_size, - PROT_READ|PROT_WRITE, MAP_PRIVATE, fileno(thefile), 0); - -foo: - /* Check if this looks like a legit ELF file */ - if (check_elf_header(ehdr)) { - fprintf(stderr, "%s: not an ELF file.\n", filename); - return -1; - } - /* Check if this is the right kind of ELF file */ - if (ehdr->e_type != ET_EXEC && ehdr->e_type != ET_DYN) { - fprintf(stderr, "%s: not a dynamic executable\n", filename); - return -1; - } - if (ehdr->e_type == ET_EXEC) { - if (statbuf.st_mode & S_ISUID) - is_suid = 1; - if ((statbuf.st_mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP)) - is_suid = 1; - /* FIXME */ - if (is_suid) - fprintf(stderr, "%s: is setuid\n", filename); - } - - interpreter_already_found=0; - interp = find_elf_interpreter(ehdr); - -#ifdef __LDSO_LDD_SUPPORT - if (interp && ehdr->e_type == ET_EXEC && ehdr->e_ident[EI_CLASS] == ELFCLASSM && - ehdr->e_ident[EI_DATA] == ELFDATAM - && ehdr->e_ident[EI_VERSION] == EV_CURRENT && MATCH_MACHINE(ehdr->e_machine)) - { - struct stat statbuf; - if (stat(interp->path, &statbuf) == 0 && S_ISREG(statbuf.st_mode)) { - pid_t pid; - int status; - static const char * const environment[] = { - "PATH=/usr/bin:/bin:/usr/sbin:/sbin", - "SHELL=/bin/sh", - "LD_TRACE_LOADED_OBJECTS=1", - NULL - }; - - if ((pid = fork()) == 0) { - /* Cool, it looks like we should be able to actually - * run this puppy. Do so now... */ - execle(filename, filename, NULL, environment); - _exit(0xdead); - } - - /* Wait till it returns */ - waitpid(pid, &status, 0); - if (WIFEXITED(status) && WEXITSTATUS(status)==0) { - return 1; - } - - /* If the exec failed, we fall through to trying to find - * all the needed libraries ourselves by rummaging about - * in the ELF headers... */ - } - } -#endif - - dynsec = elf_find_section_type(SHT_DYNAMIC, ehdr); - if (dynsec) { - dynamic = (Elf32_Dyn*)(byteswap32_to_host(dynsec->sh_offset) + (intptr_t)ehdr); - dynstr = (char *)elf_find_dynamic(DT_STRTAB, dynamic, ehdr, 0); - find_needed_libraries(ehdr, dynamic, dynstr, is_suid); - } - - return 0; -} - - - -int main( int argc, char** argv) -{ - int multi=0; - int got_em_all=1; - char *filename = NULL; - struct library *cur; - - if (argc < 2) { - fprintf(stderr, "ldd: missing file arguments\n"); - fprintf(stderr, "Try `ldd --help' for more information.\n"); - exit(EXIT_FAILURE); - } - if (argc > 2) { - multi++; - } - - while (--argc > 0) { - ++argv; - - if(strcmp(*argv, "--")==0) { - /* Ignore "--" */ - continue; - } - - if(strcmp(*argv, "--help")==0) { - fprintf(stderr, "Usage: ldd [OPTION]... FILE...\n"); - fprintf(stderr, "\t--help\t\tprint this help and exit\n"); - exit(EXIT_FAILURE); - } - - filename=*argv; - if (!filename) { - fprintf(stderr, "No filename specified.\n"); - exit(EXIT_FAILURE); - } - - if (multi) { - printf("%s:\n", *argv); - } - - if (find_dependancies(filename)!=0) - continue; - - while(got_em_all) { - got_em_all=0; - /* Keep walking the list till everybody is resolved */ - for (cur = lib_list; cur; cur=cur->next) { - if (cur->resolved == 0 && cur->path) { - got_em_all=1; - //printf("checking sub-depends for '%s\n", cur->path); - find_dependancies(cur->path); - cur->resolved = 1; - } - } - } - - - /* Print the list */ - got_em_all=0; - for (cur = lib_list; cur; cur=cur->next) { - got_em_all=1; - printf("\t%s => %s (0x00000000)\n", cur->name, cur->path); - } - if (interp_dir && got_em_all==1) - printf("\t%s => %s (0x00000000)\n", interp, interp); - if (got_em_all==0) - printf("\tnot a dynamic executable\n"); - - for (cur = lib_list; cur; cur=cur->next) { - free(cur->name); - cur->name=NULL; - free(cur->path); - cur->path=NULL; - } - lib_list=NULL; - } - - return 0; -} - diff --git a/ldso/util/readelf.c b/ldso/util/readelf.c deleted file mode 100644 index 1d53c4c3d..000000000 --- a/ldso/util/readelf.c +++ /dev/null @@ -1,348 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * A small little readelf implementation for uClibc - * - * Copyright (C) 2000 by Lineo, inc and Erik Andersen - * Copyright (C) 2000-2002 Erik Andersen <andersee@debian.org> - * - * Several functions in this file (specifically, elf_find_section_type(), - * elf_find_phdr_type(), and elf_find_dynamic(), were stolen from elflib.c from - * elfvector (http://www.BitWagon.com/elfvector.html) by John F. Reiser - * <jreiser@BitWagon.com>, which is copyright 2000 BitWagon Software LLC - * (GPL2). - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - - -#include <fcntl.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <sys/mman.h> -#include <sys/stat.h> -#include <sys/types.h> - -#include "bswap.h" -#include "elf.h" - - -int byteswap; -inline uint32_t byteswap32_to_host(uint32_t value) -{ - if (byteswap==1) { - return(bswap_32(value)); - } else { - return(value); - } -} - -Elf32_Shdr * elf_find_section_type( int key, Elf32_Ehdr *ehdr) -{ - int j; - Elf32_Shdr *shdr = (Elf32_Shdr *)(ehdr->e_shoff + (char *)ehdr); - for (j = ehdr->e_shnum; --j>=0; ++shdr) { - if (key==(int)byteswap32_to_host(shdr->sh_type)) { - return shdr; - } - } - return NULL; -} - -Elf32_Phdr * elf_find_phdr_type( int type, Elf32_Ehdr *ehdr) -{ - int j; - Elf32_Phdr *phdr = (Elf32_Phdr *)(ehdr->e_phoff + (char *)ehdr); - for (j = ehdr->e_phnum; --j>=0; ++phdr) { - if (type==(int)byteswap32_to_host(phdr->p_type)) { - return phdr; - } - } - return NULL; -} - -/* Returns value if return_val==1, ptr otherwise */ -void * elf_find_dynamic(int const key, Elf32_Dyn *dynp, - Elf32_Ehdr *ehdr, int return_val) -{ - Elf32_Phdr *pt_text = elf_find_phdr_type(PT_LOAD, ehdr); - unsigned tx_reloc = byteswap32_to_host(pt_text->p_vaddr) - byteswap32_to_host(pt_text->p_offset); - for (; DT_NULL!=byteswap32_to_host(dynp->d_tag); ++dynp) { - if (key == (int)byteswap32_to_host(dynp->d_tag)) { - if (return_val == 1) - return (void *)(intptr_t)byteswap32_to_host(dynp->d_un.d_val); - else - return (void *)(byteswap32_to_host(dynp->d_un.d_val) - tx_reloc + (char *)ehdr ); - } - } - return NULL; -} - -int check_elf_header(Elf32_Ehdr *const ehdr) -{ - if (! ehdr || strncmp((void *)ehdr, ELFMAG, SELFMAG) != 0 || - ehdr->e_ident[EI_CLASS] != ELFCLASS32 || - ehdr->e_ident[EI_VERSION] != EV_CURRENT) - { - return 1; - } - - /* Check if the target endianness matches the host's endianness */ - byteswap = 0; -#if __BYTE_ORDER == __LITTLE_ENDIAN - if (ehdr->e_ident[5] == ELFDATA2MSB) { - /* Ick -- we will have to byte-swap everything */ - byteswap = 1; - } -#elif __BYTE_ORDER == __BIG_ENDIAN - if (ehdr->e_ident[5] == ELFDATA2LSB) { - byteswap = 1; - } -#else -#error Unknown host byte order! -#endif - /* Be vary lazy, and only byteswap the stuff we use */ - if (byteswap==1) { - ehdr->e_type=bswap_16(ehdr->e_type); - ehdr->e_machine=bswap_16(ehdr->e_machine); - ehdr->e_phoff=bswap_32(ehdr->e_phoff); - ehdr->e_shoff=bswap_32(ehdr->e_shoff); - ehdr->e_phnum=bswap_16(ehdr->e_phnum); - ehdr->e_shnum=bswap_16(ehdr->e_shnum); - } - return 0; -} - - -#define ELFOSABI_NONE 0 /* UNIX System V ABI */ -#define ELFOSABI_HPUX 1 /* HP-UX operating system */ -#define ELFOSABI_NETBSD 2 /* NetBSD */ -#define ELFOSABI_LINUX 3 /* GNU/Linux */ -#define ELFOSABI_HURD 4 /* GNU/Hurd */ -#define ELFOSABI_SOLARIS 6 /* Solaris */ -#define ELFOSABI_AIX 7 /* AIX */ -#define ELFOSABI_IRIX 8 /* IRIX */ -#define ELFOSABI_FREEBSD 9 /* FreeBSD */ -#define ELFOSABI_TRU64 10 /* TRU64 UNIX */ -#define ELFOSABI_MODESTO 11 /* Novell Modesto */ -#define ELFOSABI_OPENBSD 12 /* OpenBSD */ -#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */ -#define ELFOSABI_ARM 97 /* ARM */ -static void describe_elf_hdr(Elf32_Ehdr* ehdr) -{ - char *tmp, *tmp1; - - switch (ehdr->e_type) { - case ET_NONE: tmp = "None"; tmp1 = "NONE"; break; - case ET_REL: tmp = "Relocatable File"; tmp1 = "REL"; break; - case ET_EXEC: tmp = "Executable file"; tmp1 = "EXEC"; break; - case ET_DYN: tmp = "Shared object file"; tmp1 = "DYN"; break; - case ET_CORE: tmp = "Core file"; tmp1 = "CORE"; break; - default: - tmp = tmp1 = "Unknown"; - } - printf( "Type:\t\t%s (%s)\n", tmp1, tmp); - - switch (ehdr->e_machine) { - case EM_NONE: tmp="No machine"; break; - case EM_M32: tmp="AT&T WE 32100"; break; - case EM_SPARC: tmp="SUN SPARC"; break; - case EM_386: tmp="Intel 80386"; break; - case EM_68K: tmp="Motorola m68k family"; break; - case EM_88K: tmp="Motorola m88k family"; break; - case EM_860: tmp="Intel 80860"; break; - case EM_MIPS: tmp="MIPS R3000 big-endian"; break; - case EM_S370: tmp="IBM System/370"; break; - case EM_MIPS_RS3_LE: tmp="MIPS R3000 little-endian"; break; - case EM_PARISC: tmp="HPPA"; break; - case EM_VPP500: tmp="Fujitsu VPP500"; break; - case EM_SPARC32PLUS: tmp="Sun's v8plus"; break; - case EM_960: tmp="Intel 80960"; break; - case EM_PPC: tmp="PowerPC"; break; - case EM_PPC64: tmp="PowerPC 64-bit"; break; - case EM_S390: tmp="IBM S390"; break; - case EM_V800: tmp="NEC V800 series"; break; - case EM_FR20: tmp="Fujitsu FR20"; break; - case EM_RH32: tmp="TRW RH-32"; break; - case EM_RCE: tmp="Motorola RCE"; break; - case EM_ARM: tmp="ARM"; break; - case EM_FAKE_ALPHA: tmp="Digital Alpha"; break; - case EM_SH: tmp="Hitachi SH"; break; - case EM_SPARCV9: tmp="SPARC v9 64-bit"; break; - case EM_TRICORE: tmp="Siemens Tricore"; break; - case EM_ARC: tmp="Argonaut RISC Core"; break; - case EM_H8_300: tmp="Hitachi H8/300"; break; - case EM_H8_300H: tmp="Hitachi H8/300H"; break; - case EM_H8S: tmp="Hitachi H8S"; break; - case EM_H8_500: tmp="Hitachi H8/500"; break; - case EM_IA_64: tmp="Intel Merced"; break; - case EM_MIPS_X: tmp="Stanford MIPS-X"; break; - case EM_COLDFIRE: tmp="Motorola Coldfire"; break; - case EM_68HC12: tmp="Motorola M68HC12"; break; - case EM_MMA: tmp="Fujitsu MMA Multimedia Accelerator"; break; - case EM_PCP: tmp="Siemens PCP"; break; - case EM_NCPU: tmp="Sony nCPU embeeded RISC"; break; - case EM_NDR1: tmp="Denso NDR1 microprocessor"; break; - case EM_STARCORE: tmp="Motorola Start*Core processor"; break; - case EM_ME16: tmp="Toyota ME16 processor"; break; - case EM_ST100: tmp="STMicroelectronic ST100 processor"; break; - case EM_TINYJ: tmp="Advanced Logic Corp. Tinyj emb.fam"; break; - case EM_X86_64: tmp="AMD x86-64 architecture"; break; - case EM_PDSP: tmp="Sony DSP Processor"; break; - case EM_FX66: tmp="Siemens FX66 microcontroller"; break; - case EM_ST9PLUS: tmp="STMicroelectronics ST9+ 8/16 mc"; break; - case EM_ST7: tmp="STmicroelectronics ST7 8 bit mc"; break; - case EM_68HC16: tmp="Motorola MC68HC16 microcontroller"; break; - case EM_68HC11: tmp="Motorola MC68HC11 microcontroller"; break; - case EM_68HC08: tmp="Motorola MC68HC08 microcontroller"; break; - case EM_68HC05: tmp="Motorola MC68HC05 microcontroller"; break; - case EM_SVX: tmp="Silicon Graphics SVx"; break; - case EM_AT19: tmp="STMicroelectronics ST19 8 bit mc"; break; - case EM_VAX: tmp="Digital VAX"; break; - case EM_CRIS: tmp="Axis Communications 32-bit embedded processor"; break; - case EM_JAVELIN: tmp="Infineon Technologies 32-bit embedded processor"; break; - case EM_FIREPATH: tmp="Element 14 64-bit DSP Processor"; break; - case EM_ZSP: tmp="LSI Logic 16-bit DSP Processor"; break; - case EM_MMIX: tmp="Donald Knuth's educational 64-bit processor"; break; - case EM_HUANY: tmp="Harvard University machine-independent object files"; break; - case EM_PRISM: tmp="SiTera Prism"; break; - case EM_AVR: tmp="Atmel AVR 8-bit microcontroller"; break; - case EM_FR30: tmp="Fujitsu FR30"; break; - case EM_D10V: tmp="Mitsubishi D10V"; break; - case EM_D30V: tmp="Mitsubishi D30V"; break; - case EM_V850: tmp="NEC v850"; break; - case EM_M32R: tmp="Mitsubishi M32R"; break; - case EM_MN10300: tmp="Matsushita MN10300"; break; - case EM_MN10200: tmp="Matsushita MN10200"; break; - case EM_PJ: tmp="picoJava"; break; - default: tmp="unknown"; - } - printf( "Machine:\t%s\n", tmp); - - switch (ehdr->e_ident[EI_CLASS]) { - case ELFCLASSNONE: tmp = "Invalid class"; break; - case ELFCLASS32: tmp = "ELF32"; break; - case ELFCLASS64: tmp = "ELF64"; break; - default: tmp = "Unknown"; - } - printf( "Class:\t\t%s\n", tmp); - - switch (ehdr->e_ident[EI_DATA]) { - case ELFDATANONE: tmp = "Invalid data encoding"; break; - case ELFDATA2LSB: tmp = "2's complement, little endian"; break; - case ELFDATA2MSB: tmp = "2's complement, big endian"; break; - default: tmp = "Unknown"; - } - printf( "Data:\t\t%s\n", tmp); - - printf( "Version:\t%d %s\n", ehdr->e_ident[EI_VERSION], - (ehdr->e_ident[EI_VERSION]==EV_CURRENT)? - "(current)" : "(unknown: %lx)"); - - switch (ehdr->e_ident[EI_OSABI]) { - case ELFOSABI_SYSV: tmp ="UNIX - System V"; break; - case ELFOSABI_HPUX: tmp ="UNIX - HP-UX"; break; - case ELFOSABI_NETBSD: tmp ="UNIX - NetBSD"; break; - case ELFOSABI_LINUX: tmp ="UNIX - Linux"; break; - case ELFOSABI_HURD: tmp ="GNU/Hurd"; break; - case ELFOSABI_SOLARIS: tmp ="UNIX - Solaris"; break; - case ELFOSABI_AIX: tmp ="UNIX - AIX"; break; - case ELFOSABI_IRIX: tmp ="UNIX - IRIX"; break; - case ELFOSABI_FREEBSD: tmp ="UNIX - FreeBSD"; break; - case ELFOSABI_TRU64: tmp ="UNIX - TRU64"; break; - case ELFOSABI_MODESTO: tmp ="Novell - Modesto"; break; - case ELFOSABI_OPENBSD: tmp ="UNIX - OpenBSD"; break; - case ELFOSABI_STANDALONE: tmp ="Standalone App"; break; - case ELFOSABI_ARM: tmp ="ARM"; break; - default: tmp = "Unknown"; - } - printf( "OS/ABI:\t\t%s\n", tmp); - - printf( "ABI Version:\t%d\n", ehdr->e_ident[EI_ABIVERSION]); -} - -static void list_needed_libraries(Elf32_Dyn* dynamic, char *strtab) -{ - Elf32_Dyn *dyns; - - printf("Dependancies:\n"); - for (dyns=dynamic; byteswap32_to_host(dyns->d_tag)!=DT_NULL; ++dyns) { - if (dyns->d_tag == DT_NEEDED) { - printf("\t%s\n", (char*)strtab + byteswap32_to_host(dyns->d_un.d_val)); - } - } -} - -static void describe_elf_interpreter(Elf32_Ehdr* ehdr) -{ - Elf32_Phdr *phdr; - phdr = elf_find_phdr_type(PT_INTERP, ehdr); - if (phdr) { - printf("Interpreter:\t%s\n", (char*)ehdr + byteswap32_to_host(phdr->p_offset)); - } -} - -int main( int argc, char** argv) -{ - /* map the .so, and locate interesting pieces */ - char *dynstr; - char *thefilename = argv[1]; - FILE *thefile; - struct stat statbuf; - Elf32_Ehdr *ehdr = 0; - Elf32_Shdr *dynsec; - Elf32_Dyn *dynamic; - - if (argc < 2 || !thefilename) { - fprintf(stderr, "No filename specified.\n"); - exit(EXIT_FAILURE); - } - if (!(thefile = fopen(thefilename, "r"))) { - perror(thefilename); - exit(EXIT_FAILURE); - } - if (fstat(fileno(thefile), &statbuf) < 0) { - perror(thefilename); - exit(EXIT_FAILURE); - } - - if ((size_t)statbuf.st_size < sizeof(Elf32_Ehdr)) - goto foo; - - /* mmap the file to make reading stuff from it effortless */ - ehdr = (Elf32_Ehdr *)mmap(0, statbuf.st_size, - PROT_READ|PROT_WRITE, MAP_PRIVATE, fileno(thefile), 0); - -foo: - /* Check if this looks legit */ - if (check_elf_header(ehdr)) { - fprintf(stderr, "This does not appear to be an ELF file.\n"); - exit(EXIT_FAILURE); - } - describe_elf_hdr(ehdr); - describe_elf_interpreter(ehdr); - - dynsec = elf_find_section_type(SHT_DYNAMIC, ehdr); - if (dynsec) { - dynamic = (Elf32_Dyn*)(byteswap32_to_host(dynsec->sh_offset) + (intptr_t)ehdr); - dynstr = (char *)elf_find_dynamic(DT_STRTAB, dynamic, ehdr, 0); - list_needed_libraries(dynamic, dynstr); - } - - return 0; -} - diff --git a/ldso/util/readsoname.c b/ldso/util/readsoname.c deleted file mode 100644 index 12c2428f2..000000000 --- a/ldso/util/readsoname.c +++ /dev/null @@ -1,63 +0,0 @@ -/* adapted from Eric Youngdale's readelf program */ - -#include <stdio.h> -#include <string.h> -#include <sys/stat.h> -#include <sys/mman.h> -#include <link.h> -#include <unistd.h> -#include <sys/types.h> -#include <ld_elf.h> -#include "readsoname.h" - -void warn(char *fmt, ...); -char *xstrdup(char *); - -struct needed_tab -{ - char *soname; - int type; -}; - -struct needed_tab needed_tab[] = { - { "libc.so.0", LIB_ELF_LIBC0 }, - { "libm.so.0", LIB_ELF_LIBC0 }, - { "libdl.so.0", LIB_ELF_LIBC0 }, - { "libc.so.5", LIB_ELF_LIBC5 }, - { "libm.so.5", LIB_ELF_LIBC5 }, - { "libdl.so.1", LIB_ELF_LIBC5 }, - { "libc.so.6", LIB_ELF_LIBC6 }, - { "libm.so.6", LIB_ELF_LIBC6 }, - { "libdl.so.2", LIB_ELF_LIBC6 }, - { NULL, LIB_ELF } -}; - -char *readsoname(char *name, FILE *infile, int expected_type, - int *type, int elfclass) -{ - char *res; - - if (elfclass == ELFCLASS32) - res = readsoname32(name, infile, expected_type, type); - else - { - res = readsoname64(name, infile, expected_type, type); -#if 0 - *type |= LIB_ELF64; -#endif - } - - return res; -} - -#undef __ELF_NATIVE_CLASS -#undef readsonameXX -#define readsonameXX readsoname32 -#define __ELF_NATIVE_CLASS 32 -#include "readsoname2.c" - -#undef __ELF_NATIVE_CLASS -#undef readsonameXX -#define readsonameXX readsoname64 -#define __ELF_NATIVE_CLASS 64 -#include "readsoname2.c" diff --git a/ldso/util/readsoname.h b/ldso/util/readsoname.h deleted file mode 100644 index 78d2216e0..000000000 --- a/ldso/util/readsoname.h +++ /dev/null @@ -1,4 +0,0 @@ -char *readsoname(char *name, FILE *file, int expected_type, - int *type, int elfclass); -char *readsoname32(char *name, FILE *file, int expected_type, int *type); -char *readsoname64(char *name, FILE *file, int expected_type, int *type); diff --git a/ldso/util/readsoname2.c b/ldso/util/readsoname2.c deleted file mode 100644 index 1bf47b7c6..000000000 --- a/ldso/util/readsoname2.c +++ /dev/null @@ -1,115 +0,0 @@ -char *readsonameXX(char *name, FILE *infile, int expected_type, int *type) -{ - ElfW(Ehdr) *epnt; - ElfW(Phdr) *ppnt; - int i, j; - char *header; - ElfW(Word) dynamic_addr = 0; - ElfW(Word) dynamic_size = 0; - unsigned long page_size = getpagesize(); - ElfW(Word) strtab_val = 0; - ElfW(Word) needed_val; - ElfW(Sword) loadaddr = -1; - ElfW(Dyn) *dpnt; - struct stat st; - char *needed; - char *soname = NULL; - int multi_libcs = 0; - - if(expected_type == LIB_DLL) - { - warn("%s does not match type specified for directory!", name); - expected_type = LIB_ANY; - } - - *type = LIB_ELF; - - if (fstat(fileno(infile), &st)) - return NULL; - header = mmap(0, st.st_size, PROT_READ, MAP_SHARED, fileno(infile), 0); - if (header == (caddr_t)-1) - return NULL; - - epnt = (ElfW(Ehdr) *)header; - if ((char *)(epnt+1) > (char *)(header + st.st_size)) - goto skip; - - ppnt = (ElfW(Phdr) *)&header[epnt->e_phoff]; - if ((char *)ppnt < (char *)header || - (char *)(ppnt+epnt->e_phnum) > (char *)(header + st.st_size)) - goto skip; - - for(i = 0; i < epnt->e_phnum; i++) - { - if (loadaddr == -1 && ppnt->p_type == PT_LOAD) - loadaddr = (ppnt->p_vaddr & ~(page_size-1)) - - (ppnt->p_offset & ~(page_size-1)); - if(ppnt->p_type == 2) - { - dynamic_addr = ppnt->p_offset; - dynamic_size = ppnt->p_filesz; - }; - ppnt++; - }; - - dpnt = (ElfW(Dyn) *) &header[dynamic_addr]; - dynamic_size = dynamic_size / sizeof(ElfW(Dyn)); - if ((char *)dpnt < (char *)header || - (char *)(dpnt+dynamic_size) > (char *)(header + st.st_size)) - goto skip; - - while (dpnt->d_tag != DT_NULL) - { - if (dpnt->d_tag == DT_STRTAB) - strtab_val = dpnt->d_un.d_val; - dpnt++; - }; - - if (!strtab_val) - goto skip; - - dpnt = (ElfW(Dyn) *) &header[dynamic_addr]; - while (dpnt->d_tag != DT_NULL) - { - if (dpnt->d_tag == DT_SONAME || dpnt->d_tag == DT_NEEDED) - { - needed_val = dpnt->d_un.d_val; - if (needed_val + strtab_val - loadaddr >= 0 || - needed_val + strtab_val - loadaddr < st.st_size) - { - needed = (char *) (header - loadaddr + strtab_val + needed_val); - - if (dpnt->d_tag == DT_SONAME) - soname = xstrdup(needed); - - for (j = 0; needed_tab[j].soname != NULL; j++) - { - if (strcmp(needed, needed_tab[j].soname) == 0) - { - if (*type != LIB_ELF && *type != needed_tab[j].type) - multi_libcs = 1; - *type = needed_tab[j].type; - } - } - } - } - dpnt++; - }; - - if (multi_libcs) - warn("%s appears to be for multiple libc's", name); - - /* If we could not deduce the libc type, and we know what to expect, set the type */ - if(*type == LIB_ELF && expected_type != LIB_ANY) *type = expected_type; - - if(expected_type != LIB_ANY && expected_type != LIB_ELF && - expected_type != *type) - { - warn("%s does not match type specified for directory!", name); - } - - skip: - munmap(header, st.st_size); - - return soname; -} |