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authorFlorian Fainelli <florian@openwrt.org>2010-07-29 00:13:07 +0200
committerRalf Baechle <ralf@linux-mips.org>2010-08-05 13:25:39 +0100
commit5c8974538afd97990d3730ef6fea731a34ef1f85 (patch)
tree9cacc2300cf71e45e5a868ac561f5a1e66bef19c /arch/mips/cavium-octeon
parente10c53a5f31ae1535e13ef51d6615662c36d36c6 (diff)
MIPS: Octeon: Workaround link failures with gcc-4.4.x 32-bits toolchains
When building with a gcc-4.4.x toolchain that is configured to produce 32-bits executables by default, we will produce __lshrti3 in sched_clock() which is never resolved so the kernel fails to link. Unconditionally use the inline assembly version as suggested by David Daney, which works around the issue. Signed-off-by: Florian Fainelli <florian@openwrt.org> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1514/ Acked-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/cavium-octeon')
-rw-r--r--arch/mips/cavium-octeon/csrc-octeon.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/arch/mips/cavium-octeon/csrc-octeon.c b/arch/mips/cavium-octeon/csrc-octeon.c
index 0bf4bbe04ae..36400d23ff5 100644
--- a/arch/mips/cavium-octeon/csrc-octeon.c
+++ b/arch/mips/cavium-octeon/csrc-octeon.c
@@ -53,7 +53,6 @@ static struct clocksource clocksource_mips = {
unsigned long long notrace sched_clock(void)
{
/* 64-bit arithmatic can overflow, so use 128-bit. */
-#if (__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ <= 3))
u64 t1, t2, t3;
unsigned long long rv;
u64 mult = clocksource_mips.mult;
@@ -73,13 +72,6 @@ unsigned long long notrace sched_clock(void)
: [cnt] "r" (cnt), [mult] "r" (mult), [shift] "r" (shift)
: "hi", "lo");
return rv;
-#else
- /* GCC > 4.3 do it the easy way. */
- unsigned int __attribute__((mode(TI))) t;
- t = read_c0_cvmcount();
- t = t * clocksource_mips.mult;
- return (unsigned long long)(t >> clocksource_mips.shift);
-#endif
}
void __init plat_time_init(void)