[coreboot-gerrit] New patch to review for coreboot: build system / amd64: Avoid GCC taking the ABI spec too literally

[Patrick Georgi (pgeorgi@google.com)]

Patrick Georgi (pgeorgi at google.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/10852

-gerrit

commit 9f44e93d0444f001ea56f3736a383d7f787ec723
Author: Patrick Georgi <pgeorgi at chromium.org>
Date:   Wed Jul 8 18:12:49 2015 +0200

    build system / amd64: Avoid GCC taking the ABI spec too literally
    
    -mno-red-zone is an option that pretty much every barebone software package
    (eg. kernel, bootloader, ...) needs to use.
    We weren't hurt by it yet, but make sure we won't in the future.
    
    Change-Id: Ide5b63424ec1be5bf7bcade10540190b9871593b
    Signed-off-by: Patrick Georgi <pgeorgi at chromium.org>
---
 toolchain.inc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/toolchain.inc b/toolchain.inc
index 3e28bb9..47e407f 100644
--- a/toolchain.inc
+++ b/toolchain.inc
@@ -72,7 +72,7 @@ CFLAGS_mips	+= -mno-abicalls -fno-pic
 CFLAGS_x86_32 += -ffunction-sections -fdata-sections
 CFLAGS_riscv	+= -ffunction-sections -fdata-sections
 
-CFLAGS_x86_64   += -mcmodel=large
+CFLAGS_x86_64   += -mcmodel=large -mno-red-zone
 
 toolchain_to_dir = \
 	$(foreach arch,$(ARCH_SUPPORTED),\