diff options
Diffstat (limited to 'libc/sysdeps/linux/frv/__longjmp.S')
| -rw-r--r-- | libc/sysdeps/linux/frv/__longjmp.S | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/frv/__longjmp.S b/libc/sysdeps/linux/frv/__longjmp.S new file mode 100644 index 000000000..a61f8d4e0 --- /dev/null +++ b/libc/sysdeps/linux/frv/__longjmp.S @@ -0,0 +1,75 @@ +#define _SETJMP_H +#define _ASM +#include <bits/setjmp.h> + +# setjmp/longjmp for Frv. The jmpbuf looks like this: +# +# Register jmpbuf offset +# R16-R31 0x0-0x03c +# R48-R63 0x40-0x7c +# FR16-FR31 0x80-0xbc +# FR48-FR63 0xc0-0xfc +# LR 0x100 +# SP 0x104 +# FP 0x108 +# +# R8 contains the pointer to jmpbuf + + .text + .global __longjmp + .type __longjmp,@function +__longjmp: + lddi @(gr8,0), gr16 + lddi @(gr8,8), gr18 + lddi @(gr8,16), gr20 + lddi @(gr8,24), gr22 + lddi @(gr8,32), gr24 + lddi @(gr8,40), gr26 + lddi @(gr8,48), gr28 + lddi @(gr8,56), gr30 +#if __FRV_GPR__ != 32 + lddi @(gr8,64), gr48 + lddi @(gr8,72), gr50 + lddi @(gr8,80), gr52 + lddi @(gr8,88), gr54 + lddi @(gr8,96), gr56 + lddi @(gr8,104), gr58 + lddi @(gr8,112), gr60 + lddi @(gr8,120), gr62 +#endif + +#if __FRV_FPR__ != 0 + lddfi @(gr8,128), fr16 + lddfi @(gr8,136), fr18 + lddfi @(gr8,144), fr20 + lddfi @(gr8,152), fr22 + lddfi @(gr8,160), fr24 + lddfi @(gr8,168), fr26 + lddfi @(gr8,176), fr28 + lddfi @(gr8,184), fr30 +#if __FRV_FPR__ != 32 + lddfi @(gr8,192), fr48 + lddfi @(gr8,200), fr50 + lddfi @(gr8,208), fr52 + lddfi @(gr8,216), fr54 + lddfi @(gr8,224), fr56 + lddfi @(gr8,232), fr58 + lddfi @(gr8,240), fr60 + lddfi @(gr8,248), fr62 +#endif +#endif + + ldi @(gr8,256), gr4 + movgs gr4,lr + + ldi @(gr8,260), sp + ldi @(gr8,264), fp + +# Value to return is in r9. If zero, return 1 + cmp gr9, gr0, icc0 + setlos #1, gr8 + ckne icc0, cc4 + cmov gr9, gr8, cc4, 1 + ret +.Lend2: + .size __longjmp,.Lend2-__longjmp |