diff options
| author | Rich Felker <dalias@aerifal.cx> | 2012-07-22 18:55:01 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2012-07-22 18:55:01 -0400 |
| commit | dc046f55bbff5f79d022882723c73a6b9af0bf86 (patch) | |
| tree | 5dad3839830e12534d77443868a1fc410f898c21 /src | |
| parent | 75fff40b9b536e0e6847d17ecc076894ca7b7068 (diff) | |
| download | musl-dc046f55bbff5f79d022882723c73a6b9af0bf86.tar.gz | |
add floating point register saving/restoring to mips setjmp/longjmp
also fix the alignment of jmp_buf to meet the abi. linux always
emulates fpu on mips if it's not present, so enabling this code
unconditionally is "safe" but may be slow. in the long term it may be
preferable to find a way to disable it on soft float builds.
Diffstat (limited to 'src')
| -rw-r--r-- | src/setjmp/mips/longjmp.s | 16 | ||||
| -rw-r--r-- | src/setjmp/mips/setjmp.s | 14 |
2 files changed, 29 insertions, 1 deletions
diff --git a/src/setjmp/mips/longjmp.s b/src/setjmp/mips/longjmp.s index 9cf6f8d0..fc8e7260 100644 --- a/src/setjmp/mips/longjmp.s +++ b/src/setjmp/mips/longjmp.s @@ -10,7 +10,21 @@ longjmp: bne $2, $0, 1f nop addu $2, $2, 1 -1: lw $ra, 0($4) +1: lw $8, 48($4) + ctc1 $8, $31 + lwc1 $20, 56($4) + lwc1 $21, 60($4) + lwc1 $22, 64($4) + lwc1 $23, 68($4) + lwc1 $24, 72($4) + lwc1 $25, 76($4) + lwc1 $26, 80($4) + lwc1 $27, 84($4) + lwc1 $28, 88($4) + lwc1 $29, 92($4) + lwc1 $30, 96($4) + lwc1 $31, 100($4) + lw $ra, 0($4) lw $sp, 4($4) lw $16, 8($4) lw $17, 12($4) diff --git a/src/setjmp/mips/setjmp.s b/src/setjmp/mips/setjmp.s index 38ed5e00..1b79525f 100644 --- a/src/setjmp/mips/setjmp.s +++ b/src/setjmp/mips/setjmp.s @@ -21,5 +21,19 @@ setjmp: sw $23, 36($4) sw $30, 40($4) sw $28, 44($4) + cfc1 $8, $31 + sw $8, 48($4) + swc1 $20, 56($4) + swc1 $21, 60($4) + swc1 $22, 64($4) + swc1 $23, 68($4) + swc1 $24, 72($4) + swc1 $25, 76($4) + swc1 $26, 80($4) + swc1 $27, 84($4) + swc1 $28, 88($4) + swc1 $29, 92($4) + swc1 $30, 96($4) + swc1 $31, 100($4) jr $ra li $2, 0 |