Update.

2001-03-12  Jakub Jelinek  <jakub@redhat.com>

	* csu/Makefile (abi-tag.h): Define OS and version separately, allow
	version to be overriden from config.h.
	* csu/abi-note.S: Use OS and version separately, include config.h.
	* elf/dl-load.c (_dl_osversion): New.
	(_dl_map_object_from_fd): Kill some warnings.
	(open_verify): Check .note.ABI-tag of the library if present.
	* elf/Makefile (CPPFLAGS-dl-load.c): Add -I$(csu-objpfx).
	* elf/cache.c (struct cache_entry): Add osversion.
	(print_entry): Print osversion.
	(print_cache): Pass osversion to it.
	(compare): Sort according to osversion.
	(save_cache): Set osversion.
	(add_to_cache): Add osversion argument.
	* sysdeps/generic/ldconfig.h (add_to_cache, process_file,
	process_elf_file): Add osversion argument.
	* elf/readlib.c (process_file): Likewise.
	* sysdeps/generic/readelflib.c (process_elf_file): Likewise.
	* sysdeps/unix/sysv/linux/ia64/readelflib.c (process_elf_file,
	process_elf32_file, process_elf64_file): Likewise.
	* sysdeps/unix/sysv/linux/i386/readelflib.c (process_elf_file,
	process_elf32_file, process_elf64_file): Likewise.
	* sysdeps/unix/sysv/linux/sparc/readelflib.c (process_elf_file,
	process_elf32_file, process_elf64_file): Likewise.
	* elf/ldconfig.c (manual_link): Pass it.
	(search_dir): Issue diagnostic if two libs with the same soname in
	the same directory have different .note.ABI-tag.  Record osversion in
	dlib_entry and use it from there.
	(struct lib_entry): Remove.
	(struct dlib_entry): Add osversion.
	* sysdeps/generic/dl-cache.c (_dl_load_cache_lookup): Check
	osversion.
	* sysdeps/generic/dl-cache.h (struct file_entry_new): Replace __unused
	field with osversion.
	* sysdeps/generic/ldsodefs.h (_dl_osversion): Declare.
	* sysdeps/unix/sysv/linux/init-first.c: Include ldsodefs.h.
	* sysdeps/unix/sysv/linux/dl-osinfo.h (DL_SYSDEP_OSCHECK): Save kernel
	version in _dl_osversion.
	* sysdeps/unix/sysv/linux/configure.in: Define __ABI_TAG_VERSION.
	* Makerules (build-shlib-helper, build-module-helper): New.
	(build-shlib, build-module-helper): Make sure .note.ABI-tag comes
	early.
	* config.h.in (__ABI_TAG_VERSION): Add.
	* elf/dl-minimal.c (__strtoul_internal): Set endptr on return.
	* sysdeps/unix/sysv/linux/i386/dl-librecon.h (EXTRA_LD_ENVVARS):
	Handle LD_ASSUME_KERNEL.
	* sysdeps/unix/sysv/linux/dl-librecon.h: New.

1 files changed, 11 insertions, 14 deletions

diff --git a/elf/readlib.c b/elf/readlib.c
index 746c78f345..2886c5d30f 100644
--- a/elf/readlib.c
+++ b/elf/readlib.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Andreas Jaeger <aj@suse.de>, 1999 and
 		  Jakub Jelinek <jakub@redhat.com>, 1999.
@@ -48,18 +48,18 @@ struct known_names
   int flag;
 };
 
-static struct known_names interpreters [] =
+static struct known_names interpreters[] =
 {
-  {"/lib/" LD_SO, FLAG_ELF_LIBC6},
+  { "/lib/" LD_SO, FLAG_ELF_LIBC6 },
 #ifdef SYSDEP_KNOWN_INTERPRETER_NAMES
   SYSDEP_KNOWN_INTERPRETER_NAMES
 #endif
 };
 
-static struct known_names known_libs [] =
+static struct known_names known_libs[] =
 {
-  {LIBC_SO, FLAG_ELF_LIBC6},
-  {LIBM_SO, FLAG_ELF_LIBC6},
+  { LIBC_SO, FLAG_ELF_LIBC6 },
+  { LIBM_SO, FLAG_ELF_LIBC6 },
 #ifdef SYSDEP_KNOWN_LIBRARY_NAMES
   SYSDEP_KNOWN_LIBRARY_NAMES
 #endif
@@ -70,13 +70,13 @@ static struct known_names known_libs [] =
 /* Returns 0 if everything is ok, != 0 in case of error.  */
 int
 process_file (const char *real_file_name, const char *file_name,
-	      const char *lib, int *flag, char **soname, int is_link)
+	      const char *lib, int *flag, unsigned int *osversion,
+	      char **soname, int is_link)
 {
   FILE *file;
   struct stat64 statbuf;
   void *file_contents;
   int ret;
-
   ElfW(Ehdr) *elf_header;
   struct exec *aout_header;
 
@@ -142,10 +142,7 @@ process_file (const char *real_file_name, const char *file_name,
     }
 
   elf_header = (ElfW(Ehdr) *) file_contents;
-  if (elf_header->e_ident [EI_MAG0] != ELFMAG0
-      || elf_header->e_ident [EI_MAG1] != ELFMAG1
-      || elf_header->e_ident [EI_MAG2] != ELFMAG2
-      || elf_header->e_ident [EI_MAG3] != ELFMAG3)
+  if (memcmp (elf_header->e_ident, ELFMAG, SELFMAG) != 0)
     {
       /* The file is neither ELF nor aout.  Check if it's a linker script,
 	 like libc.so - otherwise complain.  */
@@ -161,8 +158,8 @@ process_file (const char *real_file_name, const char *file_name,
       goto done;
     }
 
-  if (process_elf_file (file_name, lib, flag, soname, file_contents,
-			statbuf.st_size))
+  if (process_elf_file (file_name, lib, flag, osversion, soname,
+			file_contents, statbuf.st_size))
     ret = 1;
 
  done: