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x86: Stop building the vboot library using regparm=3.

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This complicates things in a number of ways, including making GDB not work
properly because it assumes the standard ABI in some places. Measurements
show that it doesn't really make much difference performance wise.

BUG=None
TEST=Built and booted with coreboot and depthcharge on link.
BRANCH=None

Change-Id: I7f004f8cf83b7c1a78ab12f814477504a5a5c28c
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: https://chromium-review.googlesource.com/180874
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
Tested-by: Gabe Black <gabeblack@chromium.org>
Commit-Queue: Gabe Black <gabeblack@chromium.org>
This commit is contained in:
Gabe Black
2013-12-18 18:23:24 -08:00
committed by chrome-internal-fetch
parent 0417153258
commit 46e00e6380
1 changed files with 1 additions and 1 deletions
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2
Makefile
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@@ -132,7 +132,7 @@ CC ?= i686-pc-linux-gnu-gcc
CFLAGS ?= \
-ffunction-sections -fvisibility=hidden -fno-strict-aliasing \
-fomit-frame-pointer -fno-toplevel-reorder -fno-dwarf2-cfi-asm \
-mpreferred-stack-boundary=2 -mregparm=3 \
-mpreferred-stack-boundary=2 \
${COMMON_FLAGS}
else ifeq (${FIRMWARE_ARCH}, x86_64)
CFLAGS ?= ${COMMON_FLAGS} \