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.

2 files changed, 13 insertions, 6 deletions

diff --git a/csu/Makefile b/csu/Makefile
index ad59404..838e141 100644
--- a/csu/Makefile
+++ b/csu/Makefile
@@ -168,12 +168,17 @@ $(objpfx)abi-tag.h: $(..)abi-tags
 	$(make-target-directory)
 	rm -f $@.new
 	sed -e 's/#.*$$//' -e '/^[	]*$$/d' $< | \
-	while read conf tag; do \
+	while read conf tagos tagver; do \
 	  test `expr '$(config-machine)-$(config-vendor)-$(config-os)' \
 		     : "$$conf"` != 0 || continue; \
-	  echo "$$tag" | \
-	  sed -e 's/[^0-9xXa-fA-F]/ /g' -e 's/ *$$//' \
-	      -e 's/ /,/g' -e 's/^ */#define ABI_TAG /' > $@.new; \
+	  ( echo "$$tagos" | \
+	    sed -e 's/[^0-9xXa-fA-F 	]//' \
+		-e 's/^/#define __ABI_TAG_OS /'; \
+	    echo "#ifndef __ABI_TAG_VERSION"; \
+	    echo "$$tagver" | \
+	    sed -e 's/[^0-9xXa-fA-F]/ /g' -e 's/ *$$//' \
+	      -e 's/ /,/g' -e 's/^/# define __ABI_TAG_VERSION /'; \
+	    echo "#endif" ) > $@.new; \
 	done
 	if test -r $@.new; then mv -f $@.new $@; \
 	else echo >&2 'This configuration not matched in $<'; exit 1; fi
diff --git a/csu/abi-note.S b/csu/abi-note.S
index 6050883..3ad3a47 100644
--- a/csu/abi-note.S
+++ b/csu/abi-note.S
@@ -1,5 +1,5 @@
 /* Special .init and .fini section support.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 2001 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it
@@ -54,6 +54,7 @@ offset	length	contents
    identify the earliest release of that OS that supports this ABI.
    See abi-tags (top level) for details. */
 
+#include <config.h>
 #include <abi-tag.h>		/* OS-specific ABI tag value */
 	
 /* The linker (GNU ld 2.8 and later) recognizes an allocated section whose
@@ -67,5 +68,6 @@ offset	length	contents
 	.long  1		/* note type */
 0:	.asciz "GNU"		/* vendor name */
 1:	.align 4		
-2:	.long ABI_TAG		/* note data: the ABI tag */
+2:	.long __ABI_TAG_OS	/* note data: the ABI tag */
+	.long __ABI_TAG_VERSION
 3:	.align 4		/* pad out section */