Previously, it was possible to select an external toolchain that did not
support the GCC arch tuning the user had selected. This is problematic
because it can lead to confusing error messages during builds [0].
Now, external toolchain selections will be filtered to only those that
support the required GCC version specified by the target arch tuning.
Note: this patch does not touch the Bootlin toolchain config file as it
is generated by a script.
Additional note: there is "soft" support for toolchains prior to GCC 4.8
but there are no accompanying BR2_ARCH_NEEDS_GCC_AT_LEAST_X symbols.
Instead of adding those, just use BR2_ARCH_NEEDS_GCC_AT_LEAST_4_8 which
is the minimum GCC version with claimed support [1].
[0]: https://lists.buildroot.org/pipermail/buildroot/2023-August/671877.html
[1]: https://buildroot.org/downloads/manual/manual.html#requirement-mandatory
Signed-off-by: Vincent Fazio <vfazio@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Updated to gcc 12.2, gdb 12, binutils 2.39, glibc 2.36.
Upstream changed version scheme previously based on the release
date (2021.07) to a version scheme based on gcc version (12.2.rel1).
The runtime issue (Illegal instruction on some x86 host) [1] seems to
be fixed since it can't be reproduced anymore on the same host.
The x86_64 host variant prebuilt toolchain is built on RHEL7
(glibc 2.17) and is likely also be useable on OS versions like
RHEL8, Ubuntu 18.04 or later.
The AArch64 host variant prebuilt toolchain is built on Ubuntu 18.04
(glibc 2.27) is likely also be useable on OS versions like RHEL8,
Ubuntu 18.04 or later.
Use the sha256 hash that is now provided by upsteam.
Tested with qemu_arm_vexpress_defconfig.
[1] https://bugs.linaro.org/show_bug.cgi?id=5825#c19
[2] https://developer.arm.com/downloads/-/arm-gnu-toolchain-downloads
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
As reported to Linaro bug tracker [1] the Arm GNU Toolchain generated
since 2022.02 doesn't work on all x86_64 host.
It still not fixed with 11.3.Rel1 release (2022.08).
Fixes#15006
[1] https://bugs.linaro.org/show_bug.cgi?id=5825#c19
This reverts commit 22d10e294c.
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Currently, glibc depends on !BR2_STATIC_LIBS in all the toolchain
variants.
However, for some architectures, glibc is the only supported libc. In
commit 3b3105328e ("Config.in: only
allow BR2_STATIC_LIBS on supported libc/arch"), we implemented a fix
to avoid configurations were BR2_STATIC_LIBS=y with an architecture
already supported by glibc, because these configurations are
impossible. This commit 3b3105328e
prevents from selecting BR2_STATIC_LIBS=y when the C library used for
the internal toolchain backend is glibc.
However, it introduces a discrepency between how this topic is handled
for internal and external toolchains:
- For internal toolchains, we prevent BR2_STATIC_LIBS=y if glibc is
chosen.
- For external toolchains, we allow BR2_STATIC_LIBS=y in all cases,
and it's each glibc toolchain that has !BR2_STATIC_LIBS
This commit addresses this discrepency by preventing BR2_STATIC_LIBS=y
if glibc is chosen in all cases.
Thanks to this, we can remove the !BR2_STATIC_LIBS dependency on both
the glibc package, and all glibc external toolchains.
Fixes: https://bugs.busybox.net/show_bug.cgi?id=14256
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[Thomas: update to master, fix the gen-bootlin-toolchains script, add
a comment in the static/shared choice to indicate that static is
supported only with uclibc or musl]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
The gcc toolchain is also released for an aarch64 host target and allow
that configuration to be used as part of the configuration. Tested on
on a aarch64 linux docker.
Signed-off-by: Charles Hardin <ckhardin@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Update to gcc 10.3, gdb 10.2, binutils 2.36.1, glibc 2.33.
Remove BR2_TOOLCHAIN_HAS_NATIVE_RPC since the support for obsolete
RPC was finally dropped in glibc in 2.32 (2020-08-04).
See "Release Note":
https://developer.arm.com/open-source/gnu-toolchain/gnu-a/downloads#
Tested with qemu_arm_vexpress_defconfig.
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
While testing Buildroot on a Cortex-A5 that doesn't provide NEON, we
found out that a system generated with the ARM toolchain from Arm
didn't boot. It turns out that this ARM toolchain is built with:
--with-arch=armv7-a --with-fpu=neon --with-float=hard --with-mode=thumb
So, it uses NEON as its FPU, which means it can only work on CPU cores
that have NEON support. This commit adds the appropriate dependency to
the toolchain-external-arm-arm package, and adjusts the Config.in help
text accordingly.
While at it, it also drops the part of the Config.in help text that
says the code is tuned for Cortex-A9, as it is not the case: it was
the case for the Linaro toolchain (built with --with-tune=cortex-a9),
but not for the ARM toolchain, for which no specific --with-tune is
passed.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Enable OpenMP support in the following external toolchains:
toolchain-external-arm-aarch64-be
toolchain-external-arm-aarch64
toolchain-external-arm-arm
toolchain-external-codescape-img-mips
toolchain-external-codescape-mti-mips
toolchain-external-codesourcery-amd64
toolchain-external-codesourcery-mips
toolchain-external-linaro-aarch64-be
toolchain-external-linaro-aarch64
toolchain-external-linaro-arm
toolchain-external-linaro-armeb
Signed-off-by: Ed Blake <ed.blake@sondrel.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
>From [1]:
* All GCC 8.2 features. For details on GCC 8 release series.
* Linaro specific pre-processor macros to ensure that this is a
continuation from the Linaro releases.
* Spectre v1 mitigation backport from upstream FSF trunk include the
revisions. This is an initial backport of those mitigations in
the GNU toolchain and should be regarded as support for prototyping
and early access only. Moreover, while the backports include support
for the other architectures, they are included for completeness and
all issues regarding these patches must be taken up upstream in the
https://gcc.gnu.org/bugzilla by reproducing the same with upstream
FSF trunk.
Arm is interested in feedback regarding these workarounds for
Spectre v1.
A description of the mitigation has been published on LWN.net.
See "Release Note":
[1] https://developer.arm.com/open-source/gnu-toolchain/gnu-a/downloads#
Tested with qemu_arm_vexpress_defconfig.
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This is the same toolchain that was previously distributed by Linaro. [1]
Switch default toolchain as this toolchain supersed the Linaro ARM toolchain.
Only x86_64 host are supported, so keep Linaro toolchain for x86 host.
Tested with qemu_arm_vexpress_defconfig.
[1] https://developer.arm.com/open-source/gnu-toolchain/gnu-a/downloads
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
