commit 416ffc880bcf4122b5430fbd9d9547c83886af2f
author Stefan Reinauer <reinauer@chromium.org> Tue Sep 10 11:02:58 2013 -0700
committer chrome-internal-fetch <chrome-internal-fetch@google.com> Fri Sep 13 23:23:58 2013 +0000
tree ca3ba83739eae7239ce79a9c92bcbb7b0c067e64
parent f5a4bf9442dc891dec27ee8197a2a308f55d32b6

armv7: mark EABI compatibility symbols as used

These symbols are not used anywhere in our C code, so
when using GCC's link time optimization feature they
will be dropped even though they're needed by libgcc.
Hence we need to mark them as used so GCC does not stumble
and fall over its own guts.

BUG=none
BRANCH=none
TEST=boot tested on pit.

Change-Id: Ib2e9ea2610b57ab8244d5b699dd56025a4f08a01
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: https://chromium-review.googlesource.com/168773

src/arch/armv7/eabi_compat.c

diff --git a/src/arch/armv7/eabi_compat.c b/src/arch/armv7/eabi_compat.c
index c063c85..0c79cd5 100644
--- a/src/arch/armv7/eabi_compat.c
+++ b/src/arch/armv7/eabi_compat.c
@@ -12,7 +12,7 @@
 #include <console/console.h>
 
 /* FIXME(dhendrix): prototypes added for assembler */
-int raise (int signum);
+int raise (int signum) __attribute__((used));
 int raise (int signum)
 {
 	printk(BIOS_CRIT, "raise: Signal # %d caught\n", signum);
@@ -20,12 +20,12 @@
 }
 
 /* Dummy function to avoid linker complaints */
-void __aeabi_unwind_cpp_pr0(void);
+void __aeabi_unwind_cpp_pr0(void) __attribute__((used));
 void __aeabi_unwind_cpp_pr0(void)
 {
 };
 
-void __aeabi_unwind_cpp_pr1(void);
+void __aeabi_unwind_cpp_pr1(void) __attribute__((used));
 void __aeabi_unwind_cpp_pr1(void)
 {
 };