mirror of
https://github.com/adulau/aha.git
synced 2024-12-30 20:56:23 +00:00
52292c9b8c
gcc-4.0 generates altivec code implicitly when -mcpu indicates an altivec capable CPU which is not suitable for the kernel. However, we used to set -mcpu=970 when CONFIG_ALTIVEC was set because a gcc-3.x bug prevented from using -maltivec along with -mcpu=power4, thus prevented building the RAID6 altivec code. This patch fixes all of this by testing for the gcc version. If 4.0 or later, just normally use -mcpu=power4 and let the RAID6 code add -maltivec to the few files it needs to be compiled with altivec support. For 3.x, we still use -mcpu=970 to work around the above problem, which is fine as 3.x will never implicitly generate altivec code. The Makefile hackery may not be the most lovely, I welcome anybody more skilled than me to improve it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> |
||
---|---|---|
.. | ||
alpha | ||
arm | ||
arm26 | ||
cris | ||
frv | ||
h8300 | ||
i386 | ||
ia64 | ||
m32r | ||
m68k | ||
m68knommu | ||
mips | ||
parisc | ||
ppc | ||
ppc64 | ||
s390 | ||
sh | ||
sh64 | ||
sparc | ||
sparc64 | ||
um | ||
v850 | ||
x86_64 |