Get rid of .car.global_data warnings for GCC build
The "used" attribute was added in commit 27cf2472 which caused these
warnings to start appearing when using the standard coreboot GCC
toolchain:
{standard input}: Assembler messages:
{standard input}:96: Warning: ignoring changed section type for .car.global_data
{standard input}:96: Warning: ignoring changed section attributes for
.car.global_data
The # at the end of the section name causes the assembler to
ignore everything following the name. I verified that the resulting
binaries are the same with and without the #.
Change-Id: Iaac8042533842ed887f33895f083b613a18f496a
Signed-off-by: Martin Roth <gaumless@gmail.com>
Reviewed-on: http://review.coreboot.org/8301
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
diff --git a/src/arch/x86/include/arch/early_variables.h b/src/arch/x86/include/arch/early_variables.h
index 2d5ae85..5394af3 100644
--- a/src/arch/x86/include/arch/early_variables.h
+++ b/src/arch/x86/include/arch/early_variables.h
@@ -23,8 +23,12 @@
#ifdef __PRE_RAM__
asm(".section .car.global_data,\"w\",@nobits");
asm(".previous");
+#ifdef __clang__
#define CAR_GLOBAL __attribute__((used,section(".car.global_data")))
#else
+#define CAR_GLOBAL __attribute__((used,section(".car.global_data#")))
+#endif /* __clang__ */
+#else
#define CAR_GLOBAL
#endif