systemd-boot: Dont use -O0 with clang

Clang has a bug where it emits "memset" into code
even when we use -ffreestanding. As a workaround compile
with -O1 when using clang

Signed-off-by: Khem Raj <raj.khem@gmail.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/recipes-bsp/systemd-boot/systemd-boot_%.bbappend b/recipes-bsp/systemd-boot/systemd-boot_%.bbappend
new file mode 100644
index 0000000..d73f64c
--- /dev/null
+++ b/recipes-bsp/systemd-boot/systemd-boot_%.bbappend
@@ -0,0 +1,8 @@
+do_configure_append_toolchain-clang() {
+        export NM="${HOST_PREFIX}nm"
+        export AR="${HOST_PREFIX}ar"
+        export RANLIB="${HOST_PREFIX}ranlib"
+        export EFI_CC="${CC}"
+        sed -i -e "s#O0#O#g" ${S}/Makefile.am
+}
+