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Joseph Myers 93ae1ebaa6 Clean up gnu/lib-names.h generation (bug 14171).
This patch eliminates the mixture of SONAME information in
shlib-versions files and SONAME information used to generate
gnu/lib-names.h in makefiles, with the information in the makefiles
being removed so all this information comes from the shlib-versions
files.

So that gnu/lib-names.h supports multiple ABIs, it is changed to be
generated on the same basis as gnu/stubs.h: when there are multiple
ABIs, gnu/lib-names.h is a wrapper header (the same header installed
whatever ABI is being built) and separate headers such as
gnu/lib-names-64.h contain the substantive contents (only one such
header being installed by any glibc build).

The rules for building gnu/lib-names.h were moved from Makeconfig to
Makerules because they need to come after sysdeps makefiles are
included (now that "ifndef abi-variants" is a toplevel conditional on
the rules rather than $(abi-variants) being evaluated later inside the
commands for a rule).

Tested for x86_64 and x86 that the installed shared libraries are
unchanged by this patch, and examined the installed gnu/lib-names*.h
headers by hand.  Also tested the case of a single ABI (where there is
just a single header installed, again like stubs.h) by hacking
abi-variants to empty for x86_64.

	[BZ #14171]
	* Makeconfig [$(build-shared) = yes]
	($(common-objpfx)soversions.mk): Don't handle SONAMEs specified in
	makefiles.
	[$(build-shared) = yes && $(soversions.mk-done) = t]
	($(common-objpfx)gnu/lib-names.h): Remove rule.
	[$(build-shared) = yes && $(soversions.mk-done) = t]
	($(common-objpfx)gnu/lib-names.stmp): Likewise.  Split and moved
	to Makerules.
	[$(build-shared) = yes && $(soversions.mk-done) = t]
	(before-compile): Don't append $(common-objpfx)gnu/lib-names.h
	here.
	[$(build-shared) = yes && $(soversions.mk-done) = t]
	(common-generated): Don't append gnu/lib-names.h and
	gnu/lib-names.stmp here.
	* Makerules [$(build-shared) = yes && $(soversions.mk-done) = t]
	(lib-names-h-abi): New variable.
	[$(build-shared) = yes && $(soversions.mk-done) = t]
	(lib-names-stmp-abi): Likewise.
	[$(build-shared) = yes && $(soversions.mk-done) = t &&
	abi-variants] (before-compile): Append
	$(common-objpfx)$(lib-names-h-abi).
	[$(build-shared) = yes && $(soversions.mk-done) = t &&
	abi-variants] (common-generated): Append gnu/lib-names.h.
	[$(build-shared) = yes && $(soversions.mk-done) = t &&
	abi-variants] (install-others-nosubdir): Depend on
	$(inst_includedir)/$(lib-names-h-abi).
	[$(build-shared) = yes && $(soversions.mk-done) = t &&
	abi-variants] ($(common-objpfx)gnu/lib-names.h): New rule.
	[$(build-shared) = yes && $(soversions.mk-done) = t]
	($(common-objpfx)$(lib-names-h-abi)): New rule.
	[$(build-shared) = yes && $(soversions.mk-done) = t]
	($(common-objpfx)$(lib-names-stmp-abi)): Likewise.
	[$(build-shared) = yes && $(soversions.mk-done) = t]
	(common-generated): Append $(lib-names-h-abi) and
	$(lib-names-stmp-abi).
	* scripts/lib-names.awk: Do not handle multi being set.
	* sysdeps/unix/sysv/linux/aarch64/Makefile (abi-lp64-ld-soname):
	Remove variable.
	(abi-lp64_be-ld-soname): Likewise.
	* sysdeps/unix/sysv/linux/arm/Makefile (abi-soft-ld-soname):
	Likewise.
	(abi-hard-ld-soname): Likewise.
	* sysdeps/unix/sysv/linux/i386/shlib-versions: New file.
	* sysdeps/unix/sysv/linux/mips/Makefile (abi-o32_soft-ld-soname):
	Remove variable.
	(abi-o32_hard-ld-soname): Likewise.
	(abi-o32_soft_2008-ld-soname): Likewise.
	(abi-o32_hard_2008-ld-soname): Likewise.
	(abi-n32_soft-ld-soname): Likewise.
	(abi-n32_hard-ld-soname): Likewise.
	(abi-n32_soft_2008-ld-soname): Likewise.
	(abi-n32_hard_2008-ld-soname): Likewise.
	(abi-n64_soft-ld-soname): Likewise.
	(abi-n64_hard-ld-soname): Likewise.
	(abi-n64_soft_2008-ld-soname): Likewise.
	(abi-n64_hard_2008-ld-soname): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/Makefile (abi-64-v1-ld-soname):
	Likewise.
	(abi-64-v2-ld-soname): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/shlib-versions: Add
	ld.so entries.
	* sysdeps/unix/sysv/linux/s390/Makefile (abi-64-ld-soname): Remove
	variable.
	* sysdeps/unix/sysv/linux/s390/s390-64/shlib-versions: Add ld.so
	entry.
	* sysdeps/unix/sysv/linux/x86/Makefile (abi-32-ld-soname): Remove
	variable.
	(abi-64-ld-soname): Likewise.
	(abi-x32-ld-soname): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/shlib-versions: Add ld.so
	entry.
	* sysdeps/unix/sysv/linux/x86_64/x32/shlib-versions: Likewise.
2014-09-26 17:33:04 +00:00
argp Fix __STRICT_ANSI__ -Wundef warnings 2014-03-17 16:05:23 +00:00
assert Remove redundant C locale settings. 2014-06-07 19:58:36 +00:00
benchtests PowerPC: memset optimization for POWER8/PPC64 2014-09-10 07:39:46 -04:00
bits Fix -Wundef for _UTSNAME_DOMAIN_LENGTH. 2014-05-08 10:47:35 -07:00
catgets Remove redundant CPPFLAGS for some programs 2014-08-21 10:27:13 +05:30
conf (NEED_INETADDR, NEED_INETATON): Define to 1, not empty. 1995-09-08 20:24:57 +00:00
conform conformtest: clean up POSIX expectations for sys/mman.h, sys/stat.h, sys/types.h. 2014-06-11 23:16:23 +00:00
crypt crypt: don't include ufc-crypt.h multiple times 2014-06-06 18:25:31 -04:00
csu Remove bitrotten --enable-oldest-abi (bug 6652). 2014-09-16 17:45:03 +00:00
ctype Consistently include Makeconfig after defining subdir. 2014-02-26 23:12:03 +00:00
debug Fix -Wundef warning on PAGE_COPY_THRESHOLD 2014-07-03 01:49:43 +05:30
dirent Consistently include Makeconfig after defining subdir. 2014-02-26 23:12:03 +00:00
dlfcn Include .interp section only for libc.so 2014-09-16 22:19:22 +05:30
elf Remove CFLAGS for interp.c 2014-09-16 22:20:45 +05:30
gmon Don't use catomic functions in mcount (BZ #16912) 2014-05-06 16:30:48 +02:00
gnulib Consistently include Makeconfig after defining subdir. 2014-02-26 23:12:03 +00:00
grp Enumerate tests with special rules in tests-special variable. 2014-03-06 22:35:33 +00:00
gshadow Consistently include Makeconfig after defining subdir. 2014-02-26 23:12:03 +00:00
hesiod Consistently include Makeconfig after defining subdir. 2014-02-26 23:12:03 +00:00
hurd Consistently include Makeconfig after defining subdir. 2014-02-26 23:12:03 +00:00
iconv Complete the removal of __gconv_translit_find 2014-09-12 09:17:32 +02:00
iconvdata CVE-2014-6040: Crashes on invalid input in IBM gconv modules [BZ #17325] 2014-09-03 19:46:42 +02:00
include Update version.h and include/features.h for 2.20 release 2014-09-07 18:09:09 +10:00
inet Return failure in getnetgrent only when all netgroups have been searched (#17363) 2014-09-10 21:51:50 +05:30
intl tst-gettext2: make setup more robust 2014-08-08 22:55:48 -04:00
io Fix -Wundef warning for HAVE_SYS_PARAM_H 2014-07-10 14:19:21 +05:30
libidn Remove configuration name patterns from shlib-versions. 2014-09-12 12:28:47 +00:00
libio Fix memory leak in error path of do_ftell_wide (BZ #17370) 2014-09-16 14:20:45 +05:30
locale Minor cleanup in locale.c 2014-09-12 16:07:23 -07:00
localedata ChangeLog fix 2014-07-14 10:49:24 +02:00
login ptsname_r: don't leak uninitialized memory (BZ #16917) 2014-05-16 00:07:29 +02:00
mach Consistently include Makeconfig after defining subdir. 2014-02-26 23:12:03 +00:00
malloc malloc: additional unlink hardening for non-small bins [BZ #17344] 2014-09-11 10:59:05 +02:00
manual Update contrib.texi 2014-09-07 16:07:10 +10:00
math Revert to defining __extern_inline only for gcc-4.3+ (BZ #17266) 2014-09-16 14:08:48 +05:30
misc Make __extern_always_inline usable on clang++ again 2014-09-16 22:16:01 +05:30
nis Fix unbound stack use in NIS NSS module 2014-05-12 15:17:51 +02:00
nptl Remove configuration name patterns from shlib-versions. 2014-09-12 12:28:47 +00:00
nptl_db Remove configuration name patterns from shlib-versions. 2014-09-12 12:28:47 +00:00
nscd Correctly report nscd child process status (BZ #17092) 2014-06-27 23:31:47 +05:30
nss Remove stray includes of kernel-features.h. 2014-06-25 18:09:01 +00:00
po Update Russian translation 2014-09-13 15:41:54 +10:00
posix Assume that all _[PS]C_* and _CS_* macros are always defined 2014-09-16 22:18:20 +05:30
pwd Consistently include Makeconfig after defining subdir. 2014-02-26 23:12:03 +00:00
resolv Check value at resplen2 if it is not NULL 2014-07-08 22:52:49 +05:30
resource Consistently include Makeconfig after defining subdir. 2014-02-26 23:12:03 +00:00
rt Fix -Wundef warning for HAVE_IFUNC 2014-07-31 17:05:19 +02:00
scripts Clean up gnu/lib-names.h generation (bug 14171). 2014-09-26 17:33:04 +00:00
setjmp Use existing makefile variables for dependencies on glibc libraries. 2014-05-16 21:38:08 +00:00
shadow Consistently include Makeconfig after defining subdir. 2014-02-26 23:12:03 +00:00
signal Consistently include Makeconfig after defining subdir. 2014-02-26 23:12:03 +00:00
socket Sync recvmmsg prototype with kernel usage. 2014-09-20 13:53:44 +02:00
soft-fp soft-fp: Fix comment formatting. 2014-09-17 22:20:45 +00:00
stdio-common Don't require test wrappers to preserve environment variables, use more consistent environment. 2014-06-06 22:19:27 +00:00
stdlib stdlib/longlong.h: Add __udiv_w_sdiv prototype. 2014-09-19 11:26:31 +02:00
streams Consistently include Makeconfig after defining subdir. 2014-02-26 23:12:03 +00:00
string Move findidx nested functions to top-level. 2014-09-11 16:02:17 -07:00
sunrpc Add comment about SIZE initialization in xdr.c 2014-07-10 10:33:48 +05:30
sysdeps Clean up gnu/lib-names.h generation (bug 14171). 2014-09-26 17:33:04 +00:00
sysvipc Consistently include Makeconfig after defining subdir. 2014-02-26 23:12:03 +00:00
termios Consistently include Makeconfig after defining subdir. 2014-02-26 23:12:03 +00:00
time New test for ftime 2014-09-18 13:26:53 +05:30
timezone Remove redundant CPPFLAGS for some programs 2014-08-21 10:27:13 +05:30
wcsmbs Complete the removal of __gconv_translit_find 2014-09-12 09:17:32 +02:00
wctype Consistently include Makeconfig after defining subdir. 2014-02-26 23:12:03 +00:00
.gitattributes exempt timezone files from the no-bad-whitespace policy 2009-06-15 18:15:54 +02:00
.gitignore ignore gdb related files 2013-12-27 16:30:50 -05:00
abi-tags * abi-tags (*-.*-syllable.*): New match, with ABI value 5. 2006-01-04 17:14:58 +00:00
aclocal.m4 Refactor handling of /lib64 etc. cases, move out of sysdeps/gnu/configure.ac. 2014-07-17 14:35:48 +00:00
BUGS [BZ #5222] 2007-10-28 08:24:07 +00:00
CANCEL-FCT-WAIVE Update. 2004-03-08 07:58:18 +00:00
CANCEL-FILE-WAIVE Update. 2004-03-08 07:58:18 +00:00
ChangeLog Clean up gnu/lib-names.h generation (bug 14171). 2014-09-26 17:33:04 +00:00
ChangeLog.1 * Makefile (distribute): Add ChangeLog.[0-9]. 1995-04-14 03:52:54 +00:00
ChangeLog.2 * Makefile (distribute): Add ChangeLog.[0-9]. 1995-04-14 03:52:54 +00:00
ChangeLog.3 * Makefile (distribute): Add ChangeLog.[0-9]. 1995-04-14 03:52:54 +00:00
ChangeLog.4 * Makefile (distribute): Add ChangeLog.[0-9]. 1995-04-14 03:52:54 +00:00
ChangeLog.5 * sysdeps/posix/getaddrinfo.c: Implement configuration file 2006-05-04 06:38:07 +00:00
ChangeLog.6 Update. 1997-07-22 00:10:33 +00:00
ChangeLog.7 Update. 1997-11-18 02:50:07 +00:00
ChangeLog.8 Update. Old logs are in ChangeLog.7. 1998-08-11 18:44:11 +00:00
ChangeLog.9 Update. 2000-04-28 06:14:43 +00:00
ChangeLog.10 Update. 2000-02-29 01:13:44 +00:00
ChangeLog.11 2.5-18.1 2007-07-12 18:26:36 +00:00
ChangeLog.12 2.5-18.1 2007-07-12 18:26:36 +00:00
ChangeLog.13 Update. 2002-10-03 16:37:04 +00:00
ChangeLog.14 Update. 2004-04-20 04:28:00 +00:00
ChangeLog.15 Split out ChangeLog.15 at 2.3 branch point 2005-02-16 07:34:17 +00:00
ChangeLog.16 Fix typo in name 2012-06-21 16:45:27 +02:00
ChangeLog.17 Revert "Sun agreed to a change of the license for the RPC code to a BSD-like license." 2010-06-27 19:34:03 -07:00
ChangeLog.old-ports Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-aarch64 Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-aix Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-alpha Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-am33 Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-arm Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-cris Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-hppa Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-ia64 Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-linux-generic Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-m68k Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-microblaze Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-mips Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-powerpc Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-tile Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
config.h.in Remove bitrotten --enable-oldest-abi (bug 6652). 2014-09-16 17:45:03 +00:00
config.make.in Remove bitrotten --enable-oldest-abi (bug 6652). 2014-09-16 17:45:03 +00:00
configure Remove bitrotten --enable-oldest-abi (bug 6652). 2014-09-16 17:45:03 +00:00
configure.ac Remove bitrotten --enable-oldest-abi (bug 6652). 2014-09-16 17:45:03 +00:00
CONFORMANCE Move __STDC_* predefined macros from features.h to stdc-predef.h. 2012-02-22 12:53:04 +00:00
COPYING Update to latest versions of GPL-2.0 and LGPL-2.1 2013-09-09 12:52:48 +10:00
COPYING.LIB Update to latest versions of GPL-2.0 and LGPL-2.1 2013-09-09 12:52:48 +10:00
cppflags-iterator.mk 2004-03-11 Jeroen Dekkers <jeroen@dekkers.cx> 2004-03-14 19:13:17 +00:00
extra-lib.mk Remove --disable-versioning. 2013-09-04 15:25:42 +00:00
extra-modules.mk Update. 2004-03-08 21:31:23 +00:00
INSTALL Remove redundant C locale settings. 2014-06-07 19:58:36 +00:00
libc-abis A few more archs have IFUNC support. 2010-03-17 02:43:12 -07:00
LICENSES Expand LICENSES file. 2012-12-05 21:56:15 +00:00
Makeconfig Clean up gnu/lib-names.h generation (bug 14171). 2014-09-26 17:33:04 +00:00
Makefile Fix pthread.h in installed-headers list. 2014-06-13 16:39:23 -07:00
Makefile.in Remove redundant C locale settings. 2014-06-07 19:58:36 +00:00
Makerules Clean up gnu/lib-names.h generation (bug 14171). 2014-09-26 17:33:04 +00:00
NAMESPACE Add and update many more entries. 2000-03-20 00:42:58 +00:00
NEWS Clean up gnu/lib-names.h generation (bug 14171). 2014-09-26 17:33:04 +00:00
o-iterator.mk Fri Mar 17 12:58:37 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu> 1995-03-17 18:42:51 +00:00
PROJECTS Update. 2004-10-12 06:19:23 +00:00
README Update README and NEWS for ports directory removal. 2014-06-25 12:55:21 +00:00
Rules Don't require test wrappers to preserve environment variables, use more consistent environment. 2014-06-06 22:19:27 +00:00
shlib-versions Remove configuration name patterns from shlib-versions. 2014-09-12 12:28:47 +00:00
test-skeleton.c test-skeleton: Kill any child process's offspring 2014-06-30 20:11:56 +01:00
version.h Open development for 2.21 2014-09-08 09:22:55 +10:00
WUR-REPORT * posix/unistd.h (setuid, setreuid, seteuid, setresuid): 2012-08-01 18:12:58 +02:00

This directory contains the sources of the GNU C Library.
See the file "version.h" for what release version you have.

The GNU C Library is the standard system C library for all GNU systems,
and is an important part of what makes up a GNU system.  It provides the
system API for all programs written in C and C-compatible languages such
as C++ and Objective C; the runtime facilities of other programming
languages use the C library to access the underlying operating system.

In GNU/Linux systems, the C library works with the Linux kernel to
implement the operating system behavior seen by user applications.
In GNU/Hurd systems, it works with a microkernel and Hurd servers.

The GNU C Library implements much of the POSIX.1 functionality in the
GNU/Hurd system, using configurations i[4567]86-*-gnu.  The current
GNU/Hurd support requires out-of-tree patches that will eventually be
incorporated into an official GNU C Library release.

When working with Linux kernels, this version of the GNU C Library
requires Linux kernel version 2.6.32 or later.

Also note that the shared version of the libgcc_s library must be
installed for the pthread library to work correctly.

The GNU C Library supports these configurations for using Linux kernels:

	aarch64*-*-linux-gnu
	alpha*-*-linux-gnu
	arm-*-linux-gnueabi
	hppa-*-linux-gnu	Not currently functional without patches.
	i[4567]86-*-linux-gnu
	x86_64-*-linux-gnu	Can build either x86_64 or x32
	ia64-*-linux-gnu
	m68k-*-linux-gnu
	microblaze*-*-linux-gnu
	mips-*-linux-gnu
	mips64-*-linux-gnu
	powerpc-*-linux-gnu	Hardware or software floating point, BE only.
	powerpc64*-*-linux-gnu	Big-endian and little-endian.
	s390-*-linux-gnu
	s390x-*-linux-gnu
	sh[34]-*-linux-gnu
	sparc*-*-linux-gnu
	sparc64*-*-linux-gnu
	tilegx-*-linux-gnu
	tilepro-*-linux-gnu

If you are interested in doing a port, please contact the glibc
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See the file INSTALL to find out how to configure, build, and install
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