diff options
Diffstat (limited to 'libc/sysdeps/linux/nios2/__longjmp.S')
| -rw-r--r-- | libc/sysdeps/linux/nios2/__longjmp.S | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/nios2/__longjmp.S b/libc/sysdeps/linux/nios2/__longjmp.S new file mode 100644 index 000000000..d15f040cd --- /dev/null +++ b/libc/sysdeps/linux/nios2/__longjmp.S @@ -0,0 +1,48 @@ +/* + * libc/sysdeps/linux/nios2/__longjmp.S + * + * Copyright (C) 2004,05,06 Microtronix Datacom Ltd + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + * Written by Wentao Xu <wentao@microtronix.com> + * + */ + +#define _ASM +#define _SETJMP_H +#include <bits/setjmp.h> + +.globl __longjmp +.type __longjmp,@function +.balign 4 + +__longjmp: + /* return value is in r5*/ + mov r2, r5 + + /* jmp_buf in r4, restore regs. */ + ldw r16, (JB_REGS+ 0)(r4) + ldw r17, (JB_REGS+ 4)(r4) + ldw r18, (JB_REGS+ 8)(r4) + ldw r19, (JB_REGS+12)(r4) + ldw r20, (JB_REGS+16)(r4) + ldw r21, (JB_REGS+20)(r4) + ldw r22, (JB_REGS+24)(r4) + ldw r23, (JB_REGS+28)(r4) + + ldw ra, JB_PC(r4) + ldw fp, JB_FP(r4) + ldw gp, JB_GP(r4) + ldw sp, JB_SP(r4) + +#if defined(__HAVE_FPU__) + RESTORE_FPU r4 JB_FPREGS +#endif + + /* return to saved RA */ + ret + + |