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>
This Bootlin toolchain has been available for a while, but was not
supported until now.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
These toolchains have been marked obsolete by toolchains.bootlin.com
as they are replaced by the mips64-n32 toolchains. See commit:
121e78806b
Will allow to fix:
http://autobuild.buildroot.net/results/d13b35ba5a0f68f72e6592bdd9218b625a3c6554/
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
The "arches" dict lists the architectures for which Bootlin toolchains
are available, along with the corresponding Buildroot conditions for
those architecture variants.
However, there is nothing that checks that such architectures really
have Bootlin toolchains available. Even if no toolchain is available,
the architecture is considered as support, and will be listed in the
BR2_TOOLCHAIN_EXTERNAL_BOOTLIN_ARCH_SUPPORTS option, making menuconfig
believe that some Bootlin toolchain is available for the selected
architecture variant.
This is currently the case with the "mips64" architecture (as
identified by the Bootlin toolchains project). Such toolchains have
been made obsolete in toolchains.bootlin.com and replaced by the
mips64-n32 toolchains. But "mips64" is still listed in "arches",
causing this architecture to be considered as having Bootlin
toolchains available.
To avoid this to happen in the future, this commit adds a check that
verifies that an architecture listed in "arches" really has at least
one toolchain available.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
The microblazeel, microblazebe and openrisc toolchains need to select
this option as they don't have any gdb/gdbserver.
Helps in fixing:
http://autobuild.buildroot.net/results/6315ef7b66ee4ae8f870c92186bc674d65f62f2c/
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
The Bootlin i686 toolchain was already made available only on BR2_i386
with !BR2_x86_i486 && !BR2_x86_i586 && !BR2_x86_1000. However, this
was not sufficient as a few other architecture variants of BR2_i386
are "lower" than i686, and they need to be excluded as well.
Allows to fix:
http://autobuild.buildroot.net/results/56ac1a8fa5b34a9ca10eef98ae9fb090b8c762c4/
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
The current description of the Bootlin ARM toolchains allows them to
be selected for ARM big endian configurations, which obviously doesn't
work as these Bootlin ARM toolchains are little endian only.
We fix this by adding BR2_arm in the list of conditions for those
toolchains.
Will allow to fix:
http://autobuild.buildroot.net/results/7befbb686bb972016ba4e742976dcdb3fed1be11/
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
We now support both MMU-enabled and MMU-less RISC-V 64-bit
configurations. However, the Bootlin toolchain for RISC-V 64-bit only
supports MMU-enabled configurations, but the current logic in
toolchain/toolchain-external/toolchain-external-bootlin/ does not take
this into account, and allows selecting the Booltin toolchain for
MMU-less RISC-V 64-bit configurations.
To fix this, the gen-bootlin-toolchains script is modified to add the
BR2_USE_MMU dependency to the description of the RISC-V 64-bit
toolchain.
However, the BR2_USE_MMU dependency was also added for glibc and musl
toolchains unconditionally, so to avoid duplicating the dependency, we
now only add it only if not already present in the list of
dependencies for this toolchain.
This will allow to fix:
http://autobuild.buildroot.net/results/d6aee9b275b1ec399aea59758ac8f69fdc5691fc/
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
The Config.in options created for each toolchain were properly taking
into account the !BR2_STATIC_LIBS dependency of glibc
toolchains. However, this dependency was not taken into account into
the main BR2_TOOLCHAIN_EXTERNAL_BOOTLIN_ARCH_SUPPORTS
option. Consequently, if an architecture is only supported by glibc,
but BR2_STATIC_LIBS is enabled, the main "Bootlin toolchain" option
was visible... but with no selectable toolchain.
We fix this by making sure that
BR2_TOOLCHAIN_EXTERNAL_BOOTLIN_ARCH_SUPPORTS is only true for all
architectures supported, taking into account the fact that some
architectures can only be supported if !BR2_STATIC_LIBS, when the only
available C library is glibc.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
The x86-64-v4 toolchain assumes availability of AVX512, as per the
definition of the x86-64-v4 "standard".
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Following the merge of
d6ce2a1681 ("arch/Config.in.x86: add
option for -march=x86-64") and
eeace1cc13 ("arch/Config.in.x86: add support for
x86-64-v2, x86-64-v3, x86-64-v4"), bootlin.toolchains.com now provides
toolchains targetting the x86-64, x86-64-v2, x86-64-v3 and x86-64-v4
architecture variants.
This commits modifies gen-bootlin-toolchains to support these
toolchains. It should be noted that the description for the x86-64-v3
and x86-64-v4 toolchains are for now the same, as Buildroot doesn't
yet have the options to describe the extra features that x86-64-v4
expects to find on the hardware platform.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
toolchains.bootlin.com no longer provides a LP64 RISC-V 64-bit
toolchain, but a more useful LP64D RISC-V 64-bit toolchain. Of course,
the old tarballs remain available, but no new versions of the LP64
toolchain will be produced.
This commit reflects this change in the gen-bootlin-toolchains script.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
The logic in gen-bootlin-toolchains was assuming all glibc toolchains
have RPC support, which is no longer true since glibc 2.32 has dropped
RPC support.
It turns out that gen-bootlin-toolchains already had some proper logic
that selects BR2_TOOLCHAIN_HAS_NATIVE_RPC depending on the presence of
BR2_TOOLCHAIN_EXTERNAL_INET_RPC in the toolchain fragment. As such
toolchain fragments have been fixed in https://toolchains.bootlin.com,
we can now rely on this to properly decide if the toolchain has RPC
support or not.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
The 2020.08-1 release of Bootlin toolchains has brought support for 3
additional architecture variants, so let's support them.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
glibc toolchains must be disabled for static only configuration.
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Drop the debug-level print as noticed by Titouan.
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Titouan Christophe <titouan.christophe@railnova.eu>
https://toolchains.bootlin.com/ has been providing for a few years a
number of ready-to-use pre-built toolchains, for a wide range of
architectures (which it turns out, are all built using Buildroot).
While toolchains.bootlin.com provides Buildroot config fragments to
easily use those toolchains with Buildroot (see [0] for example), this
is not visible anywhere. So instead, we would like to add support for
these toolchains in Buildroot just like we have existing support for
Linaro, ARM, Synopsys, etc. toolchains.
[0] https://toolchains.bootlin.com/downloads/releases/toolchains/aarch64/fragments/aarch64--glibc--bleeding-edge-2020.02-2.frag
However, the number of toolchains provided by toolchains.bootlin.com
is really large, and they are regularly updated. Maintaining that
manually would be time consuming and error-prone. So instead, this
commit introduces a script that automatically generates:
- toolchain/toolchain-external/toolchain-external-bootlin/Config.in.options
- toolchain/toolchain-external/toolchain-external-bootlin/toolchain-external-bootlin.mk
- toolchain/toolchain-external/toolchain-external-bootlin/toolchain-external-bootlin.hash
- support/testing/tests/toolchain/test_external_bootlin.py
We create a single external toolchain package, with a Kconfig "choice"
as a sub-option to select the toolchain variant to be used. The script
contains a Python dict that provides the mapping between the
toolchains provided by toolchains.bootlin.com, and the architecture
options/variants they are applicable to.
The test cases allow to verify that the toolchain configuration is
correct, and that it is able to build a Busybox based system. It
doesn't do any runtime testing as such testing is already done by
toolchains.bootlin.com: the test cases here are only meant to verify
that the toolchain-external-bootlin package works as expected.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Reviewed-by: Titouan Christophe <titouan.christophe@railnova.eu>
Tested-by: Titouan Christophe <titouan.christophe@railnova.eu>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
