We have to specify the -mcpu value, even in 64-bit mode.
For AArch64, +fp and +simd are the default, so they are totally useless.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Xtensa core configuration must be added to U-Boot before it can be
built for that xtensa CPU variant. Extract configuration files from the
xtensa overlay as is done for other packages that need to be configured
for a specific xtensa core.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Xtensa core configuration must be added to linux before it can be
built for that xtensa CPU variant. Extract configuration files from the
xtensa overlay as is done for other packages that need to be configured
for a specific xtensa core.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
It can be interesting to get the overlay from a remote server, rather
than expect it to be present locally.
Since that file can be any URL, we can't know its hash, so we just
exclude it.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
[Thomas: use DL_DIR instead of BR2_DL_DIR.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
currently, specifying a custom Xtrensa core is done with two variables:
- the core name
- the directory containing the overlay tarball
However, the core name only serves to construct the tarball name, and is
not used whatsoever to configure any of the toolchain components
(binutils, gcc or gdb), except through the files that are overlayed in
their respective source trees.
This has two main drawbacks:
- the overlay file must be named after the core,
- the tarball can not be compressed.
Furthermore, it also makes it extremely complex to implement a download
of that tarball.
So, those two variables can be squeezed into a single variable, that is
the complete path of the overlay tarball.
Update the qemu-xtensa defconfig accordingly.
Note: we do not add a legacy entry for BR2_XTENSA_CORE_NAME, since it
was previously a blind option in the last release, and there's been no
release since we removed BR2_XTENSA_CUSTOM_NAME. So, we just update the
legacy comments for BR2_XTENSA_CUSTOM_NAME, since that's all the user
could have seen in any of our releases so far.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
It is not needed to have an intermediate blind option, we can just
hide the prompt behind the same dependency as the non-blind symbol.
Update our qemu-xtensa defconfig acordingly (note: it was using
different values for both options, which is not possible; the blind
option was just set to the non-blind one in the .config).
Also remove an unneeded empty default for the BR2_XTENSA_OVERLAY_DIR
string option (strings are empty by default).
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Whitespaces were searched using the following regex:
[ ]{1,}\t
and then manually removed in most of the cases. For
xserver_xorg-server.mk, tabs before backslashes were removed.
Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Currently, we have four packages that need to use the Xtensa overlay:
binutils, gcc-initial, gcc-final and gdb. However, they all use three
different ways to check for, and use the overlay. Furthermore, two of
them define the same variable: XTENSA_CORE_NAME is defined both by
binutils and gdb
In order to sanitise that, have the Xtensa architecture export the
appropriate variables: the name of the core and the path to the overlay
tarball. Packages can then check and use those variables.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This config option corresponds to the string returned by readelf for
the "Machine" field of the ELF header. It will be used to check if the
architecture of binaries built by Buildroot match the target
architecture.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit provides basic support for the C-SKY architecture.
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
[Thomas: minor tweaks.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.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>
The ARMv8 cores all support thumb2 instructions when running in aarch32 mode.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
A number of packages use BR2_ARM_CPU_HAS_NEON to know if the target handles
aarch32 neon instructions, which is only true for ARMv8 cores when they are
running in 32bit mode.
Notice: These cores do support neon-like instructions using a different
encoding in 64bit mode (it is a required part of ARMv8, similar to the FPU).
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Fixes:
http://autobuild.buildroot.net/results/5e6/5e67cc067a06f7364cde1a8393ea72608fe7fef1/
A number of packages use BR2_ARM_CPU_HAS_ARM to know if the target handles
classic A32 instructions, which is only true for ARMv8 cores when they are
running in 32bit mode.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Add two popular ARM64 cores to the list of supported cores: Cortex-A57
and Cortex-A72.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Adds the Cortex-A53 CPU to the target architecture variant choice. This
sets the toolchain to use Cortex-A53 as the target. The effect is that
various Cortex-A53 tunings are enabled for the compilation of packages.
Signed-off-by: Matt Flax <flatmax@flatmax.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
There's currently only one widely supported ABI for ARM64, called lp64,
so we define BR2_GCC_TARGET_ABI to the appropriate value.
Note that there is another ABI for ARM64 being worked on, ilp32, but its
support is not fully upstream in the kernel, so we're not adding support
for it for the moment.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The ARMv8 cores have a mandatory FPU unit called FP-ARMv8, so we:
- add a new hidden Config.in option for the availability of this
unit (BR2_ARM_CPU_HAS_FP_ARMV8)
- allow the selection of a possible choice in the "Floating point
strategy", and add two new choices: BR2_ARM_FPU_FP_ARMV8 and
BR2_ARM_FPU_NEON_FP_ARMV8.
- specify the -mfpu values for BR2_ARM_FPU_FP_ARMV8 and
BR2_ARM_FPU_NEON_FP_ARMV8 cases, when used on ARM 32 bits (-mfpu
doesn't exist on ARM64, instead -mcpu modifiers are used, so they
will be added on a per-core basis).
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
[yann.morin.1998@free.fr: drop the FP strategy dependency]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The floating point strategy currently depends on EABI || EABIHF. The
reason was that, wayback when we also supported OABI, we only exposed FP
for EABI or EABIHF, and hide it for OABI, which did not support FP.
It's been a while now that we do not support OABI, but the dependency
stuck all along.
Remove it as it is no longer needed, and is always true.
However, the choice is empty for AArch64, as we still have no entry for
their floating point strategy yet.
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>
In order to prepare the addition of ARM64 cores, add the blind
BR2_ARM_CPU_ARMV8 option.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Until now the "Target Architecture Variant" choice was not visible on
AArch64. In order to prepare the addition of the 64 bits core to this
choice, this commit adds a "depends on !BR2_ARCH_IS_64" dependency to
all currently supported cores (that are 32 bits only).
Following this commit, the "Target Architecture Variant" choice appears
on AArch64, but is for now empty.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The 64 bits ARM processors are capable of running 32 bits ARM code, and
some platforms are indeed using this capability. Due to this, if we were
to keep the separation between Config.in.aarch64 and Config.in.arm, we
would have to duplicate the definition of all 64-bits capable ARM cores
into both files.
Instead of going down this route, let's take the same route as the x86
one: a single Config.in.x86 file, used for both x86 32 bits and x86 64
bits, with the appropriate logic to only show the relevant cores
depending on which architecture is selected.
In order to do this, we:
- Make the "ARM instruction set" choice only visible on ARM 32 bits,
since we currently don't support ARM vs. Thumb on AArch64.
- Add the relevant values for the BR2_ARCH option.
- Add the relevant values for the BR2_ENDIAN option.
- Make the "aapcs-linux" BR2_GCC_TARGET_ABI value only used on ARM 32
bits, since this ABI doesn't mean anything on AArch64.
- Make the BR2_GCC_TARGET_FPU option depends on ARM 32 bits, since
there is no -mfpu option on AArch64.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
m6201 is the -march option for GCC, but the real core name is
M6250.
Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
m5101 is the -march option for GCC, but the real core name is M5150.
Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This is a microcontroller class (MCU) core which is not suitable for
running Linux.
Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The Ingenic XBurst is a MIPS32R2 microprocessor.
It has a bug in the FPU that can generate incorrect results in certain
cases. The problem shows up when you have several fused madd
instructions in sequence with dependant operands.
Using the -mno-fused-madd option prevents gcc from emitting these
instructions. This patch adds changes to the toolchain wrapper to use
that option.
Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-march=m6201 is not yet supported in GCC upstream, so disabling all
versions when selecting this core.
Note that M6201 implies a MIPS R6 CPU, and some GCC versions are already
disabled for R6, so we don't need to disable those ones for M6201 as
well.
The external Codescape IMG GNU Linux Toolchain has support for this
core.
Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-march=p6600 is not yet supported in GCC upstream, so disabling all
versions when selecting this core.
Note that P6600 implies a MIPS R6 CPU, and some GCC versions are already
disabled for R6, so we don't need to disable those ones for P6600 as
well.
The external Codescape IMG GNU Linux Toolchain has support for this
core.
Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
-march=i6400 support starts from GCC-6, so disable previous versions
when selecting this core.
Note that I6400 implies a MIPS R6 CPU, and some GCC versions are already
disabled for R6, so we don't need to disable those ones for I6400 as
well.
Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
-march=m5101 support starts from GCC-6, so disable previous versions
when selecting this core.
Note that M5101 implies a MIPS R5 CPU, and some GCC versions are already
disabled for R5, so we don't need to disable those ones for M5101 as
well.
Also disable external toolchains that don't support this core.
Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
-march=m5100 support starts from GCC-6, so disable previous versions
when selecting this core.
Note that M5100 implies a MIPS R5 CPU, and some GCC versions are already
disabled for R5, so we don't need to disable those ones for M5100 as
well.
Also disable external toolchains that don't support this core.
Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
-march=interaptiv support starts from GCC-6, so disable previous
versions when selecting this core.
Also disable external toolchains that don't support this core.
Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
-march=mips64r5 support started from GCC-5, so disable previous versions
when the CPU is R5.
Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
-march=mips32r5 support started from GCC-5, so disable previous versions
when the CPU is R5.
Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Meant to be used by the target architecture variants.
Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.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>
The default Blackfin processor in Buildroot isn't supported by
gcc 6.1.0, so use bf532 as default. Disable any bf6xx processors
for internal toolchain users.
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
BR2_BINFMT_FLAT_SEP_DATA can be used to create XIP userland and works fine
for m68k. Unfortunately a lot of basic packages as pcre are not compileable
because of a CPU or hardware limitation. The reason for failing are very
big functions used in the libraries or application code.
Typical errors are:
Fatal error: Tried to convert PC relative branch to absolute jump
or
error: value -yyyyy out of range
Add kernel patch from 4ec5542679 to make
BR2_BINFMT_FLAT_ONE compiled firmware work fine.
Fixes:
http://autobuild.buildroot.net/results/20b/20b1586757450d6aad8583ad7a787a7ca11acef1/http://autobuild.buildroot.net/results/d31/d311955ada1ffcd7f69e82965c8fe33eabe488cd/
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
[Thomas: add comment in Config.in file about sep-data existing on m68k,
but being disabled due to build issues with numerous packages.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Greg Ungerer fixed recently a bug in the Linux kernel, which
allows to use one memory region again.
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
[Thomas: cherry-picked from next to master, in order to be able to use
BR2_BINFMT_FLAT_ONE by default on m68k, since BR2_BINFMT_FLAT_SEP_DATA
causes too much problems.]
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
The situation looks like following for elf2flt and binfmt FLAT:
* Only gcc for bfin/m68k implements
-msep-data (BR2_BINFMT_FLAT_SEP_DATA) and
-mid-shared-library (BR2_BINFMT_FLAT_SHARED), so the corresponding
options are made only visible on those architectures.
* When the default of BR2_BINFMT_FLAT_ONE is used on m68k, broken
binaries are produced, which mainly end up in SIGILL, so do not use
it for m68k.
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
[Thomas:
- also add the dependencies on m68k/bfin to BR2_BINFMT_FLAT_SHARED
- rework commit log.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Setting BR2_GCC_TARGET_ARCH is possible, but breaks
external toolchain users. m68k/cf defconfigs just
working without it.
Reported-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Add support for m68k/coldfire. A gcc patch is required
to avoid gcc ICE.
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
We were not defining BR2_ARCH for two of the x86 subarchitecture,
which means the architecture part of the GNU_TARGET_NAME tuple was
empty, leading to weird build failures.
This commit fixes that by defining the appropriate values.
Fixes bug #8861.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The Linux kernel doesn't even support i386 anymore, there is no NPTL
support for i386 and uClibc-ng only supports NPTL on x86, so there is
essentially no usable thread implementation. Most likely glibc and
musl also don't support i386 either. So it's time to remove the
support for this architecture variant.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
