[PATCH 2/6] toolchain/gcc: use ELFv2 ABI on ppc64 with musl

Stijn Tintel stijn at linux-ipv6.be
Sat Aug 21 16:15:09 PDT 2021

At configuration time, gcc assumes that ppc64be targets use the ELFv1
ABI, and ppc64le targets use the ELFv2 ABI. However, musl libc does not
support the ELFv1 ABI on ppc64 at all, regardless of the endianness.

Therefore, when building for a ppc64 arch and with musl libc, instruct
gcc to use the ELFv2 ABI.

See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93157 for more info.

Signed-off-by: Stijn Tintel <stijn at linux-ipv6.be>
 toolchain/gcc/common.mk | 1 +
 1 file changed, 1 insertion(+)

diff --git a/toolchain/gcc/common.mk b/toolchain/gcc/common.mk
index 76c5fc114a..2167127916 100644
--- a/toolchain/gcc/common.mk
+++ b/toolchain/gcc/common.mk
@@ -116,6 +116,7 @@ GCC_CONFIGURE:= \
 		$(if $(CONFIG_mips64)$(CONFIG_mips64el),--with-arch=mips64 \
 			--with-abi=$(call qstrip,$(CONFIG_MIPS64_ABI))) \
 		$(if $(CONFIG_arc),--with-cpu=$(CONFIG_CPU_TYPE)) \
+		$(if $(CONFIG_powerpc64), $(if $(CONFIG_USE_MUSL),--with-abi=elfv2)) \
 		--with-gmp=$(TOPDIR)/staging_dir/host \
 		--with-mpfr=$(TOPDIR)/staging_dir/host \
 		--with-mpc=$(TOPDIR)/staging_dir/host \

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