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authorGravatar Alexey Brodkin <alexey.brodkin@synopsys.com>2018-11-09 23:09:49 +0300
committerGravatar Thomas Petazzoni <thomas.petazzoni@bootlin.com>2018-11-09 22:02:16 +0100
commit311af5e8c2db887800639bc803c8201b6b70e9ce (patch)
tree53bc64dd049769907b1bcbbdedc81665f27ad75e /toolchain
parent87290b8084d2ce1d3568740695a401a8e592839d (diff)
downloadbuildroot-311af5e8c2db887800639bc803c8201b6b70e9ce.tar.gz
buildroot-311af5e8c2db887800639bc803c8201b6b70e9ce.tar.bz2
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.in2
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