buildroot/arch/Config.in, branch 2016.08

m68k: disable BR2_BINFMT_FLAT_SEP_DATA for coldfire

2016-08-22T22:08:13+00:00

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 4ec5542679264bc06a0356ef92f06ad7a0abe06d 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 [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

m68k: flat one memory region works with small kernel patch

2016-08-22T22:05:37+00:00

Greg Ungerer fixed recently a bug in the Linux kernel, which allows to use one memory region again. Signed-off-by: Waldemar Brodkorb [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

arch: define dependencies for the binfmt flat formats

2016-07-05T07:48:19+00:00

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 [Thomas: - also add the dependencies on m68k/bfin to BR2_BINFMT_FLAT_SHARED - rework commit log.] Signed-off-by: Thomas Petazzoni

toolchain: add coldfire support

2016-04-30T16:50:46+00:00

Add support for m68k/coldfire. A gcc patch is required to avoid gcc ICE. Signed-off-by: Waldemar Brodkorb Signed-off-by: Thomas Petazzoni

arch/m68k: re-enable the architecture

2016-03-20T14:28:44+00:00

This allows to build a m68k toolchain with uClibc. Signed-off-by: Waldemar Brodkorb Signed-off-by: Thomas Petazzoni

arch: remove BR2_ARCH_HAS_ATOMICS option

2016-02-06T10:16:00+00:00

Now that BR2_ARCH_HAS_ATOMICS is no longer used anywhere, we can remove it from arch/Config.in*, as well as from the documentation. Signed-off-by: Thomas Petazzoni Acked-by: "Yann E. MORIN"

toolchain: add sparc64 architecture support

2015-10-10T10:51:45+00:00

Introduce sparc64 architecture to buildroot. Signed-off-by: Waldemar Brodkorb Acked-by: Gustavo Zacarias Tested-by: Gustavo Zacarias Signed-off-by: Thomas Petazzoni

arch: aarch64 always has a MMU

2015-07-12T16:34:42+00:00

Following the addition of AArch64 big endian, the AArch64 little endian option had lost its 'select BR2_ARCH_HAS_MMU_MANDATORY', so let's reintroduce it. Signed-off-by: Thomas Petazzoni

aarch64: add big endian(aarch64_be) support

2015-07-12T16:32:37+00:00

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) Acked-by: Gustavo Zacarias Signed-off-by: Thomas Petazzoni

arch: tidy up binary formats config

2015-06-09T20:51:14+00:00

Instead of (black)listing architectures when deciding the binary format, we can enable the ELF format only when using an MMU and FLAT only when we're not. This mimics the logic in the Linux kernel for user binaries support. For FDPIC, we introduce a Kconfig option to enable its selection, and have blackfin select it. Signed-off-by: Guido Martínez Reviewed-by: Arnout Vandecappelle (Essensium/Mind) Signed-off-by: Thomas Petazzoni