[oe] [meta-initramfs][PATCH] kexec-tools-klibc: Deliberately add -O2

[Khem Raj]

This helps the compiler to be more aggressive and do the expected
optimizations to remove unused code which otherwise gets flagged on some
architectures e.g. armv7l

errors like
undefined reference to `bad_unaligned_access_length'

Also see
http://lists.infradead.org/pipermail/kexec/2009-August/003488.html

Signed-off-by: Khem Raj <raj.khem at gmail.com>
Cc: Andrea Adami <andrea.adami at gmail.com>
---
 meta-initramfs/recipes-kernel/kexec/kexec-tools-klibc_git.bb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta-initramfs/recipes-kernel/kexec/kexec-tools-klibc_git.bb b/meta-initramfs/recipes-kernel/kexec/kexec-tools-klibc_git.bb
index fe34671987..25f5da48da 100644
--- a/meta-initramfs/recipes-kernel/kexec/kexec-tools-klibc_git.bb
+++ b/meta-initramfs/recipes-kernel/kexec/kexec-tools-klibc_git.bb
@@ -60,7 +60,7 @@ EXTRA_OECONF += "--without-zlib --without-lzma --without-xen"
 
 # fix purgatory/printf.c:2:10: fatal error: limits.h: No such file or directory
 # fix include/limits.h:42:10: fatal error: bitsize/limits.h: No such file or directory
-COMMON_CFLAGS += "-I${STAGING_DIR_HOST}${libdir}/klibc/include -I${S}/purgatory/include"
+COMMON_CFLAGS += "-O2 -I${STAGING_DIR_HOST}${libdir}/klibc/include -I${S}/purgatory/include"
 CFLAGS_x86_append = " ${COMMON_CFLAGS} -I${STAGING_DIR_HOST}${libdir}/klibc/include/bits32"
 CFLAGS_x86-64_append = " ${COMMON_CFLAGS} -I${STAGING_DIR_HOST}${libdir}/klibc/include/bits64"
 CFLAGS_arm_append = " ${COMMON_CFLAGS} -I${STAGING_DIR_HOST}${libdir}/klibc/include/bits32"
-- 
2.19.0