From: YunQiang Su <wzssyqa@gmail.com>
Date: Sat, 5 Sep 2015 13:39:25 +0000 (-0700)
Subject: mips/setjmp.S: don't save and restore floating-point registers
X-Git-Tag: archive/raspbian/2.0.4-11+rpi1~1^2~3
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=919e5fd9abd05e4876ebed79bbf5c8ceb8e6b8d4;p=klibc.git

mips/setjmp.S: don't save and restore floating-point registers

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.

Gbp-Pq: Name klibc-mips-setjmp-s-don-t-save-and-restore-floating-point.patch
---

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