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authorSerhey Popovych <serhe.popovych@gmail.com>2018-12-14 19:54:34 +0200
committerRichard Purdie <richard.purdie@linuxfoundation.org>2018-12-15 17:10:44 +0000
commit68c9641855199f34aabe1050e863c21830116fe1 (patch)
treeba5f04d8140d71ac6d1aa54d6cad7b8218b4ca46
parenta0ebc77ee0b461fc30e704f7dd9e9c2061ef4193 (diff)
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arch-powerpc64.inc: Use elfv2 ABI when building with musl
Historically first PowerPC ABI was big-endian only (elfv1 currently). It is standard ABI for both 32-bit ppc and 64-bit ppc64 architectures. With PowerPC little-endian support new ABI was introduced (elfv2) and it is used primarily with ppc64le target only. While it has support for big-endian it is not commonly used and elfv1 still preferred. Musl does support only elfv2 ABI for both LE and BE and does not have any plans to support elfv1. Since then to build for powerpc64 with musl new ABI should be used. As expected it is not compatible with elfv1 but that isn't problem as long as there is no binary distributed software or assembly code written for elfv1 ABI. Signed-off-by: Serhey Popovych <serhe.popovych@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
-rw-r--r--meta/conf/machine/include/powerpc/arch-powerpc64.inc3
1 files changed, 3 insertions, 0 deletions
diff --git a/meta/conf/machine/include/powerpc/arch-powerpc64.inc b/meta/conf/machine/include/powerpc/arch-powerpc64.inc
index f751c6b76ce..d9916d43da9 100644
--- a/meta/conf/machine/include/powerpc/arch-powerpc64.inc
+++ b/meta/conf/machine/include/powerpc/arch-powerpc64.inc
@@ -7,6 +7,9 @@ TUNECONFLICTS[m64] = "m32 nf"
TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'm64', ' -m64', '', d)}"
TUNE_ARCH .= "${@bb.utils.contains('TUNE_FEATURES', [ 'm64' ], 'powerpc64', '', d)}"
+# musl only supports elfv2 ABI for ppc64
+TUNE_CCARGS .= "${@['', ' -mabi=elfv2']['libc-musl' in d.getVar('OVERRIDES').split(':')]}"
+
# user mode qemu doesn't support ppc64
MACHINE_FEATURES_BACKFILL_CONSIDERED_append = " ${@bb.utils.contains('TUNE_FEATURES', 'm64', 'qemu-usermode', '', d)}"