uclibc-ng supports the RISC-V architecture since version 1.0.31, so
let's allow selecting this C library when RISC-V is used.
There was a previous attempt in commit
bd9810e176, which was reverted in
e7d631c0df, due to uClibc-ng not
implementing the __riscv_flush_icache() which is needed by
gcc. However this function has been implemented in upstream uClibc-ng
as of 1.0.35, so we can now safely re-enable uClibc-ng on RISC-V.
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This reverts commit bd9810e176. Indeed,
while uClibc-ng has support for RISC-V 64-bit, this support lacks the
__riscv_flush_icache() function call, which is used by some GCC
builtins used for example in libffi.
Due to this missing __riscv_flush_icache(), anything that links
against libffi fails to build:
/home/test/autobuild/run/instance-0/output-1/host/bin/riscv64-buildroot-linux-uclibc-gcc -o gobject/gobject-query gobject/gobject-query.p/gobject-query.c.o -Wl,--as-needed -Wl,--no-undefined -Wl,-O1 -Wl,--start-group glib/libglib-2.0.so.0.6400.4 gobject/libgobject-2.0.so.0.6400.4 -Wl,--end-group -pthread '-Wl,-rpath,$ORIGIN/../glib:$ORIGIN/' -Wl,-rpath-link,/home/test/autobuild/run/instance-0/output-1/build/libglib2-2.64.4/build/glib -Wl,-rpath-link,/home/test/autobuild/run/instance-0/output-1/build/libglib2-2.64.4/build/gobject
/home/test/autobuild/run/instance-0/output-1/host/lib/gcc/riscv64-buildroot-linux-uclibc/9.3.0/../../../../riscv64-buildroot-linux-uclibc/bin/ld: /home/test/autobuild/run/instance-0/output-1/host/riscv64-buildroot-linux-uclibc/sysroot/usr/lib64/libffi.so.7: undefined reference to `__riscv_flush_icache'
collect2: error: ld returned 1 exit status
Note that this commit means that
support/config-fragments/autobuild/br-riscv64-full-internal.config
will be back to using glibc as the C library, but that is OK, until
uClibc-ng is fixed to implemented __riscv_flush_icache().
This uClibc-ng issue has been reported upstream at
https://mailman.uclibc-ng.org/pipermail/devel/2020-August/002022.html.
Fixes:
http://autobuild.buildroot.net/results/ec1185ad1fd8863a3990143a0af2ace987761a27/
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
We can enable uclibc for RISC-V 64 bit now that it has been
bumped from v1.0.32 to v1.0.34.
Uclibc has had basic support for RISC-V 64 bit since v1.0.31, but
shared library and TLS/NPTL support has only been available since
v1.0.33.
This update has been tested using qemu_riscv64_virt_defconfig and
the Buildroot host QEMU.
Signed-off-by: Mark Corbin <mark@dibsco.co.uk>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
For glibc 2.31.x:
- Update LICENSES file hash due to url change:
"Prefer https to http for gnu.org and fsf.org URLs"
- riscv64 does not build with kernel headers < 5.0, but upstream
has not yet comitted a single fix, neither in master nor in the
maintenance branch:
https://sourceware.org/ml/libc-alpha/2020-02/msg00018.html
For localedef 2.31.x:
- Remove upstream patch for localedef:
0003-localedef-Use-initializer-for-flexible-array-member-.patch
Note that this version bump required some patches applied on
several packages (already applied):
[Busybox] 13f2d688a2
[openssh] bad75bca31
[gcc] disable libsanitizer with gcc 7.5
See:
https://sourceware.org/legacy-ml/libc-announce/2020/msg00001.html
Tested by toolchain builder:
https://gitlab.com/kubu93/toolchains-builder/pipelines/129551000
Signed-off-by: Romain Naour <romain.naour@smile.fr>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
The current ARC glibc version in buildroot arc-2019.09-rc1 allows to
build an ARC big endian configuration, so let's allow this.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Add an upstream URL to the help text in Config.in. This
addresses the 'Missing' URL status in the package stats
web page output.
[Peter: also add URL to BR2_TOOLCHAIN_BUILDROOT_MUSL help]
Signed-off-by: Mark Corbin <mark@dibsco.co.uk>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Since version 1.1.23 musl supports the RISC-V architecture.
Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Tested-by: Mark Corbin <mark.corbin@embecosm.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Initially we had a port only for ARCv2 cores but then with a simple
change ARCompact cores got supported as well.
So we generalize from BR2_archs to BR2_arcle as we haven't tried to
get glibc working on big-endian ARCs yet.
Also we never bothered to check avaialbility of atomic instructions in
the core but in case of Glibc for ARC this is really a must, so we add
this check here.
Note in case of uClibc we may have system w/o HW atomics but:
1. Only single-core systems are allowed
2. Atomic instructions are emulated via arc_usr_cmpxchg syscall
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This enables a riscv64 system to be built with a Buildroot generated
toolchain (gcc >= 7.x, binutils >= 2.30, glibc only).
This configuration has been used to successfully build a qemu-bootable
riscv-linux-4.15 kernel (https://github.com/riscv/riscv-linux.git).
Signed-off-by: Mark Corbin <mark.corbin@embecosm.com>
[Thomas:
- simplify arch.mk.riscv by directly setting GCC_TARGET_ARCH
- simplify glibc.mk changes by using GLIBC_CONF_ENV.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
The BR2_TOOLCHAIN_UCLIBC symbol doesn't exist, it was meant to be
BR2_TOOLCHAIN_BUILDROOT_UCLIBC.
Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
... to follow the convention: type, default, depends on, select, help.
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
With Linux kernel >= 4.13.x musl or1k can be used
with Qemu.
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Commit 4a5140ecf (toolchain/buildroot: glibc requires kernel headers >=
4.5 with NaN-2008) added a restriction on kernel headers for glibc when
the architecture is using naN-2008.
However, such a restriction is usually associated to a comment explaining
the restriction, so the user knows what is happening.
That comment was forgotten in 4a5140ecf. Add it now.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Romain Naour <romain.naour@openwide.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
From sysdeps/unix/sysv/linux/mips/configure.ac in glibc:
if test -z "$arch_minimum_kernel"; then
if test x$libc_cv_mips_nan2008 = xyes; then
arch_minimum_kernel=4.5.0
fi
fi
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Romain Naour <romain.naour@openwide.fr>
Cc: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Finally there's working ARC port of glibc thanks to Vineet and Cuper!
This port is based on pretty recent glibc's master branch and ARC
changes are being reviewed now in glibc's mailing list.
Thus we again have to use sources from our GitHub but as soon as there's
a glibc release with our patches applied we'll switch to upstream releases
and will drop our glibc GitHub repo alltogether.
Note now we cut tags in glibc repo simultaneously with tags
in Binutils and GCC repos and so to make sure everything works in the best
way we plan to update glibc tag together with Binutils and GCC.
Also note as of today ARCompact (AKA ARCv1 ISA) is not supported in glibc
but we plan to fix it soonish so for now we make glibc intentionally
dependent on archs38.
Also note we are not creating directory "2.26" because all patches for glibc
ver 2.26 applies to arc glibc port.
Signed-off-by: Evgeniy Didin <didin@synopsys.com>
CC: Alexey Brodkin <abrodkin@synopsys.com>
CC: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
CC: Waldemar Brodkorb <wbx@openadk.org>
CC: Romain Naour <romain.naour@gmail.com>
Cc: Cupertino Miranda <cmiranda@synopsys.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Anton Kolesov <akolesov@synopsys.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Since glibc 2.26, kernel headers >= 3.10 are needed on powerpc64le [1].
In order to prepare the glibc bump to this version, we don't allow to
build a Buildroot toolchain with kernel headers older than 3.10.
[1] https://sourceware.org/git/?p=glibc.git;a=commit;h=c2ff5ec13fca1bdd1cd646a0260808386d7bd7ff
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: "Yann E. MORIN" <yann.morin.1998@free.fr>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
We do not support uClibc-ng/musl C library version choice support,
do the same for GNU C Library.
No legacy handling required as only version choice is removed.
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[Thomas: move 3.2 kernel headers dependency to the libc choice in
toolchain/toolchain-buildroot/Config.in file, and added a Config.in
comment about it.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
uClibc-ng from 1.0.22 and up supports aarch64 architecture.
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
The config for ISA choice is removed for a long time as
the buildsystem does not pass -march=mips* to the compiler anymore.
For mips{32,64}r6 support NAN selection is required.
Tested with qemu mips32/mips64 defconfigs.
A small patch is required. Bug found while testing qemu defconfigs.
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Add support for OpenRISC. See here for more details about
OpenRISC http://openrisc.io.
All buildroot included upstream binutils versions are supported.
Gcc support is not upstream, to be able to enable musl C library
support later, we use the branch with musl support.
At the moment it is possible to build a musl based toolchain,
but bootup in Qemu fails.
Gdb is only working to debug bare-metal code, there is no support
for gdbserver/gdb on Linux, yet.
[Peter: drop ?= for GCC_SOURCE]
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Tested-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
It's been deprecated for quite some time now.
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Add support for mips64, which is available since musl 1.1.15.
Only gcc 6.x has required support for it. Tested variations of
little/big endian and hard/soft float.
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Latest musl release supports ppc64 architecture (both big endian and
little endian), so this commit adds support for this.
Since musl implements the ELFv2 ABI for both big-endian and
little-endian PowerPC64, we have to force using this ABI on PowerPC64
big endian (normally elfv1 is the default).
Also, only gcc 6.x has the necessary changes to support musl on PowerPC
64, so we restrict the gcc version selection accordingly.
Tested with Qemu for big endian and little endian configurations.
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
[Thomas: add comment about the ABI flag in gcc.mk, rework commit log.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Following the removal of eglibc support, this commit replaces all
occurences of "(e)glibc" by just "glibc". Most of the occurences are in
package Config.in comments.
In addition, when the form "an (e)glibc ..." was used, it is replaced by
"a glibc ...".
[Peter: add new efi* packages, s/uclibc/uClibc as suggested by Romain,
systemd / liquid-dsp tweaks as suggested by Yann]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Romain Naour <romain.naour@gmail.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Point to the right website and tell the user the right name.
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Latest uClibc-ng 1.0.15 release fixed open issues with
microblaze shared library and linuxthreads support.
gcc 4.9.3 and gcc 5.3.0 require a small patch.
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Our musl support has now been around for quite some time, numerous
packages have been fixed (although admittedly not all). It's time to no
longer call our musl support "experimental": things are now expected to
be working with musl just like with the other two C libraries we
support.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
The eglibc support has been marked deprecated since 2015.08, so it's
time to remove it.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
While musl has recently gained noMMU support for the sh2 platform, we
don't support this yet. So for the time being, let's not show musl as
an available C library on noMMU platforms. This is for example
important on ARM noMMU: ARM is supported by musl, but not its noMMU
variants.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
glibc is not available for noMMU platforms, so it doesn't make sense
to show the comment about glibc requiring dynamic libraries on noMMU
platforms.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
We do source the glibc and uClibc packages in the toolchain menu,
because they do provide user-visible options. However, we do not so
far source the musl Config.in file
However, in 822be87 (toolchain: include C libraries in legal-info),
a Config.in file for musl was explicitly created, so that:
- legal-info would work (needed at the time, probably no longer needed
nowadays),
- the appropriate packages are enabled, like netbsd-queue or kernel
headers.
Yet, we do not source musl/Config.in, which means we do not get
netbsd-queue or kernel-headers to be selected:
$ make distclean; make menuconfig
Toolchain --->
C library ---> musl
save-and-exit
$ grep BR2_PACKAGE_LINUX_HEADERS .config
[nothing]
$ grep BR2_PACKAGE_NETBSD_QUEUE .config
[nothing]
Fix that by sourcing musl/Config.in at the same place we source glibc
and uClibc.
Normally, we do have a check in place that verifies that a package
that is not enabled is not a dependency of another package that is
enabled. However, musl is only a dependency of host-gcc-final, which
is a host package and has no corresponding BR2_PACKAGE_HOST_GCC_FINAL.
Thus host-gcc-final is not in the PACKAGES variable, and thus does not
trigger our check.
Reported-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Mask out glibc for sparc as well since it's no longer available.
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Now that we check that a target package in the _DEPENDENCIES of another
package has to be enabled in config, all target packages must have a
kconfig symbol.
Add a Kconfig symbol for linux-headers, and select it from the packages
that depends on it (C libraries).
Also remove the now-misleading comments "for legal-info" from the C
libraries.
Fixes:
http://autobuild.buildroot.org/results/2a9/2a9e5d27b34357819b44f573a834da1ba5079030/
... and numerous similar failures ...
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Filter out all other uClibc versions, as they containing
serious bugs for mips64.
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
- Add support for mips32r6 and mips64r6 target architecture variants
- Disable unsupported gcc versions
- Disable unsupported binutils versions
- Disable unsupported external toolchains
- Disable unsuported C libraries
- Add a hook in order to make glibc compile for MIPS R6.
[Thomas: slightly tweak the glibc hack explanation, to make it
hopefully clearer.]
Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Add aarch64_be support. Note that CONFIG_CPU_BIG_ENDIAN should be
defined in kernel config when building a big endian kernel.
Signed-off-by: Zhang Jian(Bamvor) <bamvor.zhangjian@huawei.com>
Acked-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
eglibc is a dead project and has not been making any release since a
while, now that glibc is back and kicking. So let's deprecated our
eglibc support.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
The Linux kernel does force compile with -m4-nofpu, which is only
available when building a multilib toolchain.
The interesting part here is, that buildroot use --disable-multilib for
gcc configure, but enables --with-multilib-list=m4,m4-nofpu in
the default configuration for Qemu targeting r2d emulation.
This results in a toolchain, which can be used for the kernel and
for userland without creating a multilib toolchain with different
kinds of libgcc version. In the multilib case there would be
subdirectories created (!m4 and m4-nofpu). As buildroot uses a
short version of toolchain creation, a multilib enabled gcc build
fails when creating libgcc.
So the best solution is to just keep multilib disabled, but always
add --with-multilib-list when sh4/sh4eb/sh4a/sh4aeb is choosen.
Tested with sh4/sh4a toolchain build and qemu defconfig with
gcc 4.8.x/4.9.x (with and without C++ enabled), uClibc and glibc.
Disable sh4a/sh4aeb for uClibc, as it does not implemented, yet.
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
(ARM and SH4 uClibc toolchain builds)
The SuperH architecture is supported by the musl libc since some time
now, so let's enable it.
Tested via qemu_sh4_r2d_defconfig.
Signed-off-by: Lionel Orry <lionel.orry@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
musl 1.1.7 brings in experimental aarch64 support so enable it.
Tested via qemu_aarch64_virt_defconfig.
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Default to glibc over eglibc where it's possible and/or convenient.
Since the eglibc project is basically gone and merged with glibc it
doesn't make sense to keep defaulting to it for architectures that
aren't uClibc-capable.
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
