compiler.h: add __weak macro

Instead of writing out '__attribute__((weak))' use a shorter form.

Change-Id: If418a1d55052780077febd2d8f2089021f414b91
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/25767
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Justin TerAvest <teravest@chromium.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/src/arch/arm64/boot.c b/src/arch/arm64/boot.c
index d498cd9362..3804515392 100644
--- a/src/arch/arm64/boot.c
+++ b/src/arch/arm64/boot.c
@@ -19,6 +19,7 @@
 #include <arch/transition.h>
 #include <arm_tf.h>
 #include <cbmem.h>
+#include <compiler.h>
 #include <console/console.h>
 #include <program_loading.h>
 #include <rules.h>
@@ -78,7 +79,7 @@ int arch_supports_bounce_buffer(void)
 }
 
 /* Generic stage entry point. Can be overridden by board/SoC if needed. */
-__attribute__((weak)) void stage_entry(void)
+__weak void stage_entry(void)
 {
 	main();
 }