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[BZ #9895] 2009-02-24 Roland McGrath <roland@redhat.com> [BZ #9895] * README.template: Reworded not to use substituted version number. Renamed to ... * README: ... here (no longer generated). * Makefile (README): Target removed.
2009-02-24 23:45:59 +00:00
This directory contains the sources of the GNU C Library.
See the file "version.h" for what release version you have.
* version.h (VERSION): 2.4 * README.template: Update for 2.4. * README: Regenerated. * manual/install.texi (Configuring and compiling): Separate build directory is mandatory. Use glibc-2.4 in example. Update --enable-add-ons description. (Supported Configurations): Remove section. * INSTALL: Regenerated.
2006-03-06 10:59:43 +00:00
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
i386: Fail at configure time for i386 builds. This change does two things: * Treats a target i386-* as if it were i686. * Fails configure if the user is generating code for i386. We no longer support i386 code-generation because the i386 lacks the atomic operations we need in glibc. You can still configure for i386-*, but you get i686 code. You can't build with --march=i386, --mtune=i386 or a compiler that defaults to i386 code-generation. I've added two i386 entries in the master todo list to discuss merging and renaming: http://sourceware.org/glibc/wiki/Development_Todo/Master#i386 The failure modes are fail-safe here. You compile for i386, get i686, and try to run on i386 and it fails. The configure log has a warning saying we elided to i686. There is no situation that I can see where we run into any serious problems. The patch makes the current state better in that we get less confused users and we build successfully in more default configurations. The next enhancement would be to add --march=i?86 as suggested in #c20 of BZ#10062 for any i?86-* builds, which would solve the problem of a 32-bit compiler that defaults to i386 code-gen and glibc configured for i686-* target. Which previously failed at build time, and now will fail at configure time (requires adding --march=i686). Updated NEWS with BZ #10060 and #10062. No regressions. --- 2013-04-06 Carlos O'Donell <carlos@redhat.com> [BZ #10060, #10062] * aclocal.m4 (LIBC_COMPILER_BUILTIN_INLINED): New macro. * sysdeps/i386/configure.in: Use LIBC_COMPILER_BUILTIN_INLINED and fail configure if __sync_val_compare_and_swap is not inlined. * sysdeps/i386/configure: Regenerate. * configure.in: Build for i686 when configured for i386. * configure: Regenerate. * README: Remove i386 reference.
2013-04-06 16:00:35 +00:00
GNU/Hurd system, using configurations i[4567]86-*-gnu. The current
Update NEWS and README. Final update for 2.16 release.
2012-06-30 15:27:06 +00:00
GNU/Hurd support requires out-of-tree patches that will eventually be
incorporated into an official GNU C Library release.
* version.h (VERSION): 2.4 * README.template: Update for 2.4. * README: Regenerated. * manual/install.texi (Configuring and compiling): Separate build directory is mandatory. Use glibc-2.4 in example. Update --enable-add-ons description. (Supported Configurations): Remove section. * INSTALL: Regenerated.
2006-03-06 10:59:43 +00:00
Remove pre-2.6.0 Linux kernel support (bug 13717).
2012-08-03 13:42:47 +00:00
When working with Linux kernels, this version of the GNU C Library
Require Linux kernel 3.2 or later on x86 / x86_64. As per the recent discussion, this patch implements a requirement for Linux 3.2 or later for x86 and x86_64. This is only the initial change to increase the configured minimum; it's expected that followup patches would deal with associated removal of conditionals that are no longer needed. If we remove the start-up test on the kernel version, of course the NEWS and README text should then be revised (to reflect that this version is just one such that glibc does not intend to include compatibility code for any older kernel version, rather than older kernels necessarily failing to work or glibc necessarily having compatibility code for newer interfaces). The followups would be able to assume presence of getcpu (x86_64), recvmmsg (not always through its own syscall, sometimes only through socketcall), sendmmsg (likewise), /proc/$pid/task/$tid/comm, f_flags from statfs, prlimit64. Tested for x86_64 and x86. * sysdeps/unix/sysv/linux/i386/configure.ac (arch_minimum_kernel): Remove. * sysdeps/unix/sysv/linux/i386/configure: Regenerated. * sysdeps/unix/sysv/linux/x86_64/64/configure.ac (arch_minimum_kernel): Remove. * sysdeps/unix/sysv/linux/x86_64/64/configure: Regenerated. * README: Update statement about Linux kernel requirements.
2017-05-08 10:45:20 +00:00
requires Linux kernel version 3.2 or later.
* version.h (VERSION): 2.4 * README.template: Update for 2.4. * README: Regenerated. * manual/install.texi (Configuring and compiling): Separate build directory is mandatory. Use glibc-2.4 in example. Update --enable-add-ons description. (Supported Configurations): Remove section. * INSTALL: Regenerated.
2006-03-06 10:59:43 +00:00
Some updates to the README file
2010-02-10 15:34:34 +00:00
Also note that the shared version of the libgcc_s library must be
installed for the pthread library to work correctly.
* version.h (VERSION): 2.4 * README.template: Update for 2.4. * README: Regenerated. * manual/install.texi (Configuring and compiling): Separate build directory is mandatory. Use glibc-2.4 in example. Update --enable-add-ons description. (Supported Configurations): Remove section. * INSTALL: Regenerated.
2006-03-06 10:59:43 +00:00
The GNU C Library supports these configurations for using Linux kernels:
Relocate AArch64 from ports to libc. This patch moves the AArch64 port to the main sysdeps hierarchy. The move is essentially: git mv ports/sysdeps/aarch64 sysdeps/aarch64 git mv ports/sysdeps/unix/sysv/linux/aarch64 sysdeps/unix/sysv/linux/aarch64 The README is updated and I've updated ChangeLog.aarch64 along the lines of the ARM move. The AArch64 build has been tested to confirm that there were no changes in objdump -dr output or the shared objects.
2014-02-10 15:36:16 +00:00
aarch64*-*-linux-gnu
Relocate alpha from ports to libc Also fixed the following whitespace nits to satisfy the push: sysdeps/alpha/alphaev6/memset.S:142: space before tab in indent. sysdeps/alpha/configure:1: new blank line at EOF. sysdeps/alpha/fpu/e_sqrt.c:126: space before tab in indent. sysdeps/alpha/preconfigure:1: new blank line at EOF. sysdeps/unix/sysv/linux/alpha/syscalls.list:1: new blank line at EOF.
2014-02-12 14:54:57 +00:00
alpha*-*-linux-gnu
Move arm from ports to libc. I've moved the ARM port from ports to the main sysdeps hierarchy. Beyond the README update, the move of the files was simply git mv ports/sysdeps/arm sysdeps/arm git mv ports/sysdeps/unix/arm sysdeps/unix/arm git mv ports/sysdeps/unix/sysv/linux/arm sysdeps/unix/sysv/linux/arm and in addition to the ChangeLog entries here, I put a note at the top of ports/ChangeLog.arm similar to that at the top of ChangeLog.powerpc. There is deliberately no NEWS change, as I think it makes the most sense to put in a general note above all ports having moved if we can achieve that for 2.20. Tested that disassembly of installed shared libraries for arm is the same before and after this patch, except for data (not instructions) in ld.so (there are assertions in sysdeps/arm/dl-machine.h, and the path by which that file is found, and so by which it appears in the assertion message, changes as a result of the move). * sysdeps/arm: Move directory from ports/sysdeps/arm. * sysdeps/unix/arm: Move directory from ports/sysdeps/unix/arm. * sysdeps/unix/sysv/linux/arm: Move directory from ports/sysdeps/unix/sysv/linux/arm. * README: Update listing for arm-*-linux-gnueabi. ports/ChangeLog.arm: * sysdeps/arm: Move directory to ../sysdeps/arm. * sysdeps/unix/arm: Move directory to ../sysdeps.arm. * sysdeps/unix/sysv/linux/arm: Move directory to ../sysdeps/unix/sysv/linux/arm.
2014-02-08 01:49:39 +00:00
arm-*-linux-gnueabi
README: hppa no longer requires patches.
2018-01-26 17:49:54 +00:00
hppa-*-linux-gnu
Update README to describe current supported systems.
2012-04-27 21:35:47 +00:00
i[4567]86-*-linux-gnu
Update NEWS and README. Final update for 2.16 release.
2012-06-30 15:27:06 +00:00
x86_64-*-linux-gnu Can build either x86_64 or x32
ia64: relocate out of ports/ subdir
2014-02-16 03:07:25 +00:00
ia64-*-linux-gnu
Move m68k from ports to libc
2014-02-10 19:05:01 +00:00
m68k-*-linux-gnu
[MicroBlaze]: Move MicroBlaze from ports to sysdeps. 2014-02-17 David Holsgrove <david.holsgrove@xilinx.com> * sysdeps/microblaze: Move directory from ports/sysdeps/microblaze. * sysdeps/unix/sysv/linux/microblaze: Move directory from ports/sysdeps/unix/sysv/linux/microblaze. * README: Add missing listing for microblaze*-*-linux-gnu. Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
2014-02-17 01:08:21 +00:00
microblaze*-*-linux-gnu
Move mips from ports to libc. I've moved the MIPS port from ports to the main sysdeps hierarchy. Beyond the README update, the move of the files was simply git mv ports/sysdeps/mips sysdeps/mips git mv ports/sysdeps/unix/mips sysdeps/unix/mips git mv ports/sysdeps/unix/sysv/linux/mips sysdeps/unix/sysv/linux/mips and in addition to the ChangeLog entries here, I put a note at the top of ports/ChangeLog.mips similar to those in other files. Tested that disassembly of installed shared libraries for mips is the same before and after this patch (except for ld.so where paths in assertions are involved, as for arm). * sysdeps/mips: Move directory from ports/sysdeps/mips. * sysdeps/unix/mips: Move directory from ports/sysdeps/unix/mips. * sysdeps/unix/sysv/linux/mips: Move directory from ports/sysdeps/unix/sysv/linux/mips. * README: Update listing for mips-*-linux-gnu and mips64-*-linux-gnu. * sysdeps/mips: Move directory to ../sysdeps/mips. * sysdeps/unix/mips: Move directory to ../sysdeps/unix/mips. * sysdeps/unix/sysv/linux/mips: Move directory to ../sysdeps/unix/sysv/linux/mips.
2014-02-10 23:30:21 +00:00
mips-*-linux-gnu
mips64-*-linux-gnu
Fix careless merge.
2013-10-06 23:23:41 +00:00
powerpc-*-linux-gnu Hardware or software floating point, BE only.
Mention powerpc64le support in NEWS and README, plus bugs fixed. * NEWS: Mention powerpc64le support and bugs fixed. * README: Both big-endian and little-endian powerpc64 supported.
2013-10-05 07:02:10 +00:00
powerpc64*-*-linux-gnu Big-endian and little-endian.
* version.h (VERSION): 2.4 * README.template: Update for 2.4. * README: Regenerated. * manual/install.texi (Configuring and compiling): Separate build directory is mandatory. Use glibc-2.4 in example. Update --enable-add-ons description. (Supported Configurations): Remove section. * INSTALL: Regenerated.
2006-03-06 10:59:43 +00:00
s390-*-linux-gnu
s390x-*-linux-gnu
Skeleton documentation for the RISC-V port During the upstreaming process it was suggested that I add a handful of small documentation entries about the RISC-V port, which I've collected here. 2018-01-29 Palmer Dabbelt <palmer@sifive.com> * manual/math.texi: RISC-V supports _Float128 and _Float64x.
2017-12-27 04:55:44 +00:00
riscv64-*-linux-gnu
Remove pre-2.6.16 Linux kernel support.
2012-08-07 16:40:32 +00:00
sh[34]-*-linux-gnu
* version.h (VERSION): 2.4 * README.template: Update for 2.4. * README: Regenerated. * manual/install.texi (Configuring and compiling): Separate build directory is mandatory. Use glibc-2.4 in example. Update --enable-add-ons description. (Supported Configurations): Remove section. * INSTALL: Regenerated.
2006-03-06 10:59:43 +00:00
sparc*-*-linux-gnu
sparc64*-*-linux-gnu
Move tilegx, tilepro, and linux-generic from ports to libc. I've moved the TILE-Gx and TILEPro ports to the main sysdeps hierarchy, along with the linux-generic ports infrastructure. Beyond the README update, the move was just git mv ports/sysdeps/tile sysdeps/tile git mv ports/sysdeps/unix/sysv/linux/tile \ sysdeps/unix/sysv/linux/tile git mv ports/sysdeps/unix/sysv/linux/generic \ sysdeps/unix/sysv/linux/generic I updated the relevant ChangeLogs along the lines of the ARM move in commit c6bfe5c4d75 and tested the 64-bit tilegx build to confirm that there were no changes in "objdump -dr" output in the shared objects.
2014-02-10 15:54:47 +00:00
tilegx-*-linux-gnu
* version.h (VERSION): 2.4 * README.template: Update for 2.4. * README: Regenerated. * manual/install.texi (Configuring and compiling): Separate build directory is mandatory. Use glibc-2.4 in example. Update --enable-add-ons description. (Supported Configurations): Remove section. * INSTALL: Regenerated.
2006-03-06 10:59:43 +00:00
Update README to describe current supported systems.
2012-04-27 21:35:47 +00:00
If you are interested in doing a port, please contact the glibc
maintainers; see http://www.gnu.org/software/libc/ for more
information.
* version.h (VERSION): 2.4 * README.template: Update for 2.4. * README: Regenerated. * manual/install.texi (Configuring and compiling): Separate build directory is mandatory. Use glibc-2.4 in example. Update --enable-add-ons description. (Supported Configurations): Remove section. * INSTALL: Regenerated.
2006-03-06 10:59:43 +00:00
See the file INSTALL to find out how to configure, build, and install
the GNU C Library. You might also consider reading the WWW pages for
the C library at http://www.gnu.org/software/libc/.
The GNU C Library is (almost) completely documented by the Texinfo manual
found in the `manual/' subdirectory. The manual is still being updated
and contains some known errors and omissions; we regret that we do not
have the resources to work on the manual as much as we would like. For
corrections to the manual, please file a bug in the `manual' component,
following the bug-reporting instructions below. Please be sure to check
the manual in the current development sources to see if your problem has
already been corrected.
initial import
1995-02-18 01:27:10 +00:00
* version.h (VERSION): 2.3.4. * README.template: Various updates. * README: Regenerated. * NEWS: Mention ports. * README-alpha: File removed.
2004-12-19 09:41:58 +00:00
Please see http://www.gnu.org/software/libc/bugs.html for bug reporting
information. We are now using the Bugzilla system to track all bug reports.
This web page gives detailed information on how to report bugs properly.
initial import
1995-02-18 01:27:10 +00:00
The GNU C Library is free software. See the file COPYING.LIB for copying
2002-08-20 Brian Youmans <3diff@gnu.org> * manual/contrib.texi: Removed licenses, added acknowledgements for contributions by Intel, IBM, Craig Metz. * LICENSES: New file, contains the text of all non-FSF licenses in the distribution that require putting the notice in the accompanying documentation. * README.template, README: Mention LICENSES. * sysdeps/mach/hurd/net/if_ppp.h: Replaced CMU license with a new one modelled on the modern BSD license, per recent letter of permission from CMU. * sysdeps/unix/sysv/linux/net/if_ppp.h: Likewise. * sysdeps/ieee754/dbl-64/MathLib.h: Changed the copyright holder from IBM to FSF, per the recent Software Letter. Changed the distribution terms from GPL to LGPL. * sysdeps/ieee754/dbl-64/asincos.tbl: Added FSF copyright and copying permission notice (Lesser GPL), per recent IBM Software Letter. * sysdeps/ieee754/dbl-64/powtwo.tbl: Likewise. * sysdeps/ieee754/dbl-64/root.tbl: Likewise. * sysdeps/ieee754/dbl-64/sincos.tbl: Likewise. * sysdeps/ieee754/dbl-64/uatan.tbl: Likewise. * sysdeps/ieee754/dbl-64/uexp.tbl: Likewise. * sysdeps/ieee754/dbl-64/ulog.tbl: Likewise. * sysdeps/ieee754/dbl-64/upow.tbl: Likewise. * sysdeps/ieee754/dbl-64/utan.tbl: Likewise. * sysdeps/ieee754/dbl-64/atnat.h: Changed the copyright holder from IBM to FSF, per the recent Software Letter. Corrected the text of the copying permission notice to say Lesser GPL instead of GPL in warranty disclaimer paragraph. * sysdeps/ieee754/dbl-64/atnat2.h: Likewise. * sysdeps/ieee754/dbl-64/branred.h: Likewise. * sysdeps/ieee754/dbl-64/dla.h: Likewise. * sysdeps/ieee754/dbl-64/doasin.h: Likewise. * sysdeps/ieee754/dbl-64/dosincos.h: Likewise. * sysdeps/ieee754/dbl-64/mpa.h: Likewise. * sysdeps/ieee754/dbl-64/mpa2.h: Likewise. * sysdeps/ieee754/dbl-64/mpatan.h: Likewise. * sysdeps/ieee754/dbl-64/mpexp.h: Likewise. * sysdeps/ieee754/dbl-64/mplog.h: Likewise. * sysdeps/ieee754/dbl-64/mpsqrt.h: Likewise. * sysdeps/ieee754/dbl-64/mydefs.h: Likewise. * sysdeps/ieee754/dbl-64/sincos32.h: Likewise. * sysdeps/ieee754/dbl-64/uasncs.h: Likewise. * sysdeps/ieee754/dbl-64/uexp.h: Likewise. * sysdeps/ieee754/dbl-64/ulog.h: Likewise. * sysdeps/ieee754/dbl-64/upow.h: Likewise. * sysdeps/ieee754/dbl-64/urem.h: Likewise. * sysdeps/ieee754/dbl-64/uroot.h: Likewise. * sysdeps/ieee754/dbl-64/usncs.h: Likewise. * sysdeps/ieee754/dbl-64/utan.h: Likewise. * sysdeps/ieee754/dbl-64/branred.c: Corrected the text of the copying permission notice to say Lesser GPL instead of GPL in warranty disclaimer paragraph. * sysdeps/ieee754/dbl-64/doasin.c: Likewise. * sysdeps/ieee754/dbl-64/dosincos.c: Likewise. * sysdeps/ieee754/dbl-64/e_asin.c: Likewise. * sysdeps/ieee754/dbl-64/e_atan2.c: Likewise. * sysdeps/ieee754/dbl-64/e_exp.c: Likewise. * sysdeps/ieee754/dbl-64/e_log.c: Likewise. * sysdeps/ieee754/dbl-64/e_pow.c: Likewise. * sysdeps/ieee754/dbl-64/e_remainder.c: Likewise. * sysdeps/ieee754/dbl-64/e_sqrt.c: Likewise. * sysdeps/ieee754/dbl-64/halfulp.c: Likewise. * sysdeps/ieee754/dbl-64/mpa.c: Likewise. * sysdeps/ieee754/dbl-64/mpatan.c: Likewise. * sysdeps/ieee754/dbl-64/mpatan2.c: Likewise. * sysdeps/ieee754/dbl-64/mpexp.c: Likewise. * sysdeps/ieee754/dbl-64/mplog.c: Likewise. * sysdeps/ieee754/dbl-64/mpsqrt.c: Likewise. * sysdeps/ieee754/dbl-64/mptan.c: Likewise. * sysdeps/ieee754/dbl-64/s_atan.c: Likewise. * sysdeps/ieee754/dbl-64/s_sin.c: Likewise. * sysdeps/ieee754/dbl-64/s_tan.c: Likewise. * sysdeps/ieee754/dbl-64/sincos32.c: Likewise. * sysdeps/ieee754/dbl-64/slowexp.c: Likewise. * sysdeps/ieee754/dbl-64/slowpow.c: Likewise.
2002-08-20 21:51:55 +00:00
conditions, and LICENSES for notices about a few contributions that require
Document copyright year range notation in README. The FSF now allows year range notation for copyright years. See `6.5 Copyright Notices' from: http://www.gnu.org/prep/maintain/html_node/Copyright-Notices.html We comply with the FSF requirements for the use of range notation by documenting the usage in our README.
2011-10-20 21:46:24 +00:00
these additional notices to be distributed. License copyright years may be
Another pointless update in README.
2015-02-11 22:39:30 +00:00
listed using range notation, e.g., 1996-2015, indicating that every year in
Document copyright year range notation in README. The FSF now allows year range notation for copyright years. See `6.5 Copyright Notices' from: http://www.gnu.org/prep/maintain/html_node/Copyright-Notices.html We comply with the FSF requirements for the use of range notation by documenting the usage in our README.
2011-10-20 21:46:24 +00:00
the range, inclusive, is a copyrightable year that would otherwise be listed
individually.
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