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[PATCH] m68knommu: remove useless compiler args 

Here is a small patch that made my kernel .text segment shrink by 8k IIRC
on my 5272-based board, by removing `-Wa,-S' from CFLAGS.

The `-Wa,-S' option prevents `gas' from using short forms of jsr.
Without it, `gas' replaces `jsr xxx.l' (6 bytes) by `jsr xxx@pc'
(4 bytes) when possible.  On 5272, both forms are equally fast.

The `-Wa,-m5307' option is useless, because gcc already gives it
to `gas' from the `-m5307' option.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Philipe De Muyter 2006-06-27 12:47:00 +10:00 committed by Linus Torvalds
parent 3c101cf024
commit 3f787bff45
1 changed files with 11 additions and 10 deletions
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21
arch/m68knommu/Makefile
View File

@ -81,16 +81,17 @@ export PLATFORM BOARD MODEL CPUCLASS
# #
# Some CFLAG additions based on specific CPU type. # Some CFLAG additions based on specific CPU type.
# #
cflags-$(CONFIG_M5206) := -m5200 -Wa,-S -Wa,-m5200 cflags-$(CONFIG_M5206) := -m5200
cflags-$(CONFIG_M5206e) := -m5200 -Wa,-S -Wa,-m5200 cflags-$(CONFIG_M5206e) := -m5200
cflags-$(CONFIG_M520x) := -m5307 -Wa,-S -Wa,-m5307 cflags-$(CONFIG_M520x) := -m5307
cflags-$(CONFIG_M523x) := -m5307 -Wa,-S -Wa,-m5307 cflags-$(CONFIG_M523x) := -m5307
cflags-$(CONFIG_M5249) := -m5200 -Wa,-S -Wa,-m5200 cflags-$(CONFIG_M5249) := -m5200
cflags-$(CONFIG_M527x) := -m5307 -Wa,-S -Wa,-m5307 cflags-$(CONFIG_M527x) := -m5307
cflags-$(CONFIG_M5272) := -m5307 -Wa,-S -Wa,-m5307 cflags-$(CONFIG_M5272) := -m5307
cflags-$(CONFIG_M528x) := -m5307 -Wa,-S -Wa,-m5307 cflags-$(CONFIG_M528x) := -m5307
cflags-$(CONFIG_M5307) := -m5307 -Wa,-S -Wa,-m5307 cflags-$(CONFIG_M5307) := -m5307
cflags-$(CONFIG_M5407) := -m5200 -Wa,-S -Wa,-m5200 cflags-$(CONFIG_M532x) := -m5307
cflags-$(CONFIG_M5407) := -m5200
cflags-$(CONFIG_M68328) := -m68000 cflags-$(CONFIG_M68328) := -m68000
cflags-$(CONFIG_M68EZ328) := -m68000 cflags-$(CONFIG_M68EZ328) := -m68000
cflags-$(CONFIG_M68VZ328) := -m68000 cflags-$(CONFIG_M68VZ328) := -m68000