diff options
| author | Alexey Brodkin <alexey.brodkin@synopsys.com> | 2018-11-09 23:09:49 +0300 |
|---|---|---|
| committer | Thomas Petazzoni <thomas.petazzoni@bootlin.com> | 2018-11-09 22:02:16 +0100 |
| commit | 311af5e8c2db887800639bc803c8201b6b70e9ce (patch) | |
| tree | 53bc64dd049769907b1bcbbdedc81665f27ad75e /toolchain | |
| parent | 87290b8084d2ce1d3568740695a401a8e592839d (diff) | |
toolchain/toolchain-buildroot: enable glibc for all little-endian ARCs with atomic ops
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>
Diffstat (limited to 'toolchain')
| -rw-r--r-- | toolchain/toolchain-buildroot/Config.in | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/toolchain/toolchain-buildroot/Config.in b/toolchain/toolchain-buildroot/Config.in index 7d9428c70e..beb17a218b 100644 --- a/toolchain/toolchain-buildroot/Config.in +++ b/toolchain/toolchain-buildroot/Config.in @@ -48,7 +48,7 @@ config BR2_TOOLCHAIN_BUILDROOT_GLIBC BR2_powerpc || BR2_powerpc64 || BR2_powerpc64le || \ BR2_riscv || BR2_sh || BR2_sparc64 || \ BR2_x86_64 || BR2_microblaze || BR2_nios2 || \ - BR2_archs38 + (BR2_arcle && BR2_ARC_ATOMIC_EXT) depends on BR2_USE_MMU depends on !BR2_STATIC_LIBS depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_2 |