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| author | H. Peter Anvin <hpa@zytor.com> | 2009-06-24 15:55:43 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2009-06-24 15:55:43 -0700 |
| commit | e93f618c0b216dd9392dc0865ad28ea53e971cdc (patch) | |
| tree | 8ca260c37babfe93598e0e329063be308034d81f /com32/MCONFIG | |
| parent | 67222ab2f96d1bd29566b3452f1a003d0641609a (diff) | |
| download | syslinux-e93f618c0b216dd9392dc0865ad28ea53e971cdc.tar.gz | |
MCONFIG: build GCCOPT one step at a time, don't align stack
Some gcc options are only valid together with other gcc options, so
build GCCOPT one bit at a time, and change gcc_ok to take already
existing GCCOPT flags into account.
This lets us build with -mpreferred-stack-boundary=2, which is only
valid on 32 bits and therefore with -m32.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'com32/MCONFIG')
| -rw-r--r-- | com32/MCONFIG | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/com32/MCONFIG b/com32/MCONFIG index 6d25b2d4..0fa78028 100644 --- a/com32/MCONFIG +++ b/com32/MCONFIG @@ -17,11 +17,16 @@ include $(topdir)/MCONFIG -GCCOPT := $(call gcc_ok,-std=gnu99,) \ - $(call gcc_ok,-m32,) \ - $(call gcc_ok,-fno-stack-protector,) \ - $(call gcc_ok,-fPIE,-fPIC) \ - -mregparm=3 -DREGPARM=3 -march=i386 -Os +GCCOPT := $(call gcc_ok,-std=gnu99,) +GCCOPT += $(call gcc_ok,-m32,) +GCCOPT += $(call gcc_ok,-fno-stack-protector,) +GCCOPT += -mregparm=3 -DREGPARM=3 -march=i386 -Os +GCCOPT += $(call gcc_ok,-fPIE,-fPIC) +GCCOPT += $(call gcc_ok,-falign-functions=0,-malign-functions=0) +GCCOPT += $(call gcc_ok,-falign-jumps=0,-malign-jumps=0) +GCCOPT += $(call gcc_ok,-falign-labels=0,-malign-labels=0) +GCCOPT += $(call gcc_ok,-falign-loops=0,-malign-loops=0) +GCCOPT += $(call gcc_ok,-mpreferred-stack-boundary=2,) com32 := $(topdir)/com32 RELOCS := $(com32)/tools/relocs |