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>

diff --git a/meta/recipes-devtools/gcc/gcc-runtime.inc b/meta/recipes-devtools/gcc/gcc-runtime.inc
index ace706dbf4ddbdd6cec036d4e560d4f4bb9328a1..d9a4e483cce40cc9debedd355dcdbe78e1e4c758 100644 (file)
--- 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 "