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| author | obrien <obrien@FreeBSD.org> | 1999-11-15 04:23:40 +0000 |
|---|---|---|
| committer | obrien <obrien@FreeBSD.org> | 1999-11-15 04:23:40 +0000 |
| commit | 48ebb77e0e28d38b4456f13f7f7682f9d6100d1a (patch) | |
| tree | 26d9af6be968b89a36c2bab7f9a520e12ef3c7b0 /sys/boot/i386/gptboot | |
| parent | f62e7fc20cc486bc0308c35b4e7e33eaa0d41e43 (diff) | |
| download | FreeBSD-src-48ebb77e0e28d38b4456f13f7f7682f9d6100d1a.zip FreeBSD-src-48ebb77e0e28d38b4456f13f7f7682f9d6100d1a.tar.gz | |
Add -fdata-sections, which is a new GCC 2.95 optimization. Remove
-fschedule-insns as it wasn't such a big win with 2.95 after all.
Add the *BIG* win "-mpreferred-stack-boundary=2" optimiztion submitted by
Dima. GCC 2.95 ensures the stack frame is always properly [opitimally]
aligned by surrounding every function call by code simular to
"addl $-12, %esp" / "addl $12, %esp". Here we need the reduction in space,
with speed not an issue.
Diffstat (limited to 'sys/boot/i386/gptboot')
| -rw-r--r-- | sys/boot/i386/gptboot/Makefile | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/boot/i386/gptboot/Makefile b/sys/boot/i386/gptboot/Makefile index 59ae6a7..b27780b 100644 --- a/sys/boot/i386/gptboot/Makefile +++ b/sys/boot/i386/gptboot/Makefile @@ -28,8 +28,9 @@ ORG1= 0x7c00 ORG2= 0x1000 CFLAGS= -elf -I${.CURDIR}/../btx/lib -I. \ - -Os -fno-builtin -fforce-addr -fschedule-insns \ + -Os -fno-builtin -fforce-addr -fdata-sections \ -malign-functions=0 -malign-jumps=0 -malign-loops=0 -mrtd \ + -mpreferred-stack-boundary=2 \ -Wall -Waggregate-return -Wbad-function-cast -Wcast-align \ -Wmissing-declarations -Wmissing-prototypes -Wnested-externs \ -Wpointer-arith -Wshadow -Wstrict-prototypes -Wwrite-strings |
