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authorKhem Raj <raj.khem@gmail.com>2020-05-05 16:59:47 -0700
committerRichard Purdie <richard.purdie@linuxfoundation.org>2020-05-12 15:19:56 +0100
commit882df891e13ce5c64718c364efb9ef2bf189eabf (patch)
tree339f82a08d51e0d1b737b15628b8b7fe85826031
parentfd4a454b5a357c7a26792bf486212957c698839c (diff)
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gcc-runtime: Avoid march conflicts with newer cortex-a55 CPUs
gcc-runtime/libatomic explicitly add -march=armv8-a+lse for all arch64 but cortex-a55 is armv8.2-a, which essentially conflicts, so let gcc override it by not forcing the -mcpu option from TUNE_CCARGS Signed-off-by: Khem Raj <raj.khem@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
-rw-r--r--meta/recipes-devtools/gcc/gcc-runtime.inc4
1 files changed, 4 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-runtime.inc b/meta/recipes-devtools/gcc/gcc-runtime.inc
index ace706dbf4..d9a4e483cc 100644
--- a/meta/recipes-devtools/gcc/gcc-runtime.inc
+++ b/meta/recipes-devtools/gcc/gcc-runtime.inc
@@ -18,6 +18,10 @@ EXTRA_OECONF_append_linuxstdbase = " --enable-clocale=gnu"
EXTRA_OECONF_append = " --cache-file=${B}/config.cache"
EXTRA_OECONF_append_libc-newlib = " --with-newlib"
+# cortex-a55 is ARMv8.2-a based but libatomic explicitly asks for -march=armv8.1-a
+# which caused -march conflicts in gcc
+TUNE_CCARGS_remove = "-mcpu=cortex-a55+crc -mcpu=cortex-a55 -mcpu=cortex-a55+crc+crypto"
+
# Disable ifuncs for libatomic on arm conflicts -march/-mcpu
EXTRA_OECONF_append_arm = " libat_cv_have_ifunc=no "
EXTRA_OECONF_append_armeb = " libat_cv_have_ifunc=no "