From 5a3a37861573722ca417d774701b952f39abea7e Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Sun, 5 Aug 2012 02:37:14 -0400 Subject: floating point support for arm setjmp/longjmp not heavily tested, but at least they don't seem to break anything on soft float targets with or without coprocessors. they check the auxv AT_HWCAP flags to determine which coprocessor, if any, is available. --- src/setjmp/arm/longjmp.s | 28 +++++++++++++++++++++++++++- 1 file changed, 27 insertions(+), 1 deletion(-) (limited to 'src/setjmp/arm/longjmp.s') diff --git a/src/setjmp/arm/longjmp.s b/src/setjmp/arm/longjmp.s index 690a0089..84ddc22f 100644 --- a/src/setjmp/arm/longjmp.s +++ b/src/setjmp/arm/longjmp.s @@ -8,6 +8,32 @@ longjmp: movs r0,r1 moveq r0,#1 ldmia ip!, {v1,v2,v3,v4,v5,v6,sl,fp,sp,lr} - tst lr,#1 + + adr r1,1f + ldr r2,1f + ldr r1,[r1,r2] + + tst r1,#0x260 + beq 3f + tst r1,#0x20 + beq 2f + ldc p2, cr4, [ip], #48 +2: tst r1,#0x40 + beq 2f + ldc p11, cr8, [ip], #64 + ldmia ip!, {r2,r3} + mcr p10, 7, r3, cr1, cr0, 0 +2: tst r1,#0x200 + beq 3f + ldcl p1, cr10, [ip], #8 + ldcl p1, cr11, [ip], #8 + ldcl p1, cr12, [ip], #8 + ldcl p1, cr13, [ip], #8 + ldcl p1, cr14, [ip], #8 + ldcl p1, cr15, [ip], #8 +3: tst lr,#1 moveq pc,lr bx lr + +.hidden __hwcap +1: .word __hwcap-1b -- cgit v1.2.1