[klibc] [PATCH] mips/setjmp.S don't save and restore float point registers
YunQiang Su
wzssyqa at gmail.com
Sat Sep 5 06:39:25 PDT 2015
Klibc FTBFS with '-mno-odd-spreg' on mips32(el) platforms,
As it try to save/restore odd-number FPR.
Indeed no other architectures save/restore FPR at all.
It shouldn't be needed.
---
usr/klibc/arch/mips/setjmp.S | 24 ------------------------
1 file changed, 24 deletions(-)
diff --git a/usr/klibc/arch/mips/setjmp.S b/usr/klibc/arch/mips/setjmp.S
index 68eed19..21e4115 100644
--- a/usr/klibc/arch/mips/setjmp.S
+++ b/usr/klibc/arch/mips/setjmp.S
@@ -29,18 +29,6 @@ LEAF(setjmp)
sw s8, 40(a0)
sw ra, 44(a0)
cfc1 t0,$31
- swc1 $f20,48(a0)
- swc1 $f21,52(a0)
- swc1 $f22,56(a0)
- swc1 $f23,60(a0)
- swc1 $f24,64(a0)
- swc1 $f25,68(a0)
- swc1 $f26,72(a0)
- swc1 $f27,76(a0)
- swc1 $f28,80(a0)
- swc1 $f29,84(a0)
- swc1 $f30,88(a0)
- swc1 $f31,92(a0)
sw t0,96(a0)
move v0,zero
jr ra
@@ -61,18 +49,6 @@ LEAF(longjmp)
lw s8, 40(a0)
lw ra, 44(a0)
lw t0, 96(a0)
- lwc1 $f20,48(a0)
- lwc1 $f21,52(a0)
- lwc1 $f22,56(a0)
- lwc1 $f23,60(a0)
- lwc1 $f24,64(a0)
- lwc1 $f25,68(a0)
- lwc1 $f26,72(a0)
- lwc1 $f27,76(a0)
- lwc1 $f28,80(a0)
- lwc1 $f29,84(a0)
- lwc1 $f30,88(a0)
- lwc1 $f31,92(a0)
ctc1 t0,$31
move v0,a1
jr ra
--
2.5.0
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