diff options
Diffstat (limited to 'arch/mips/lib/setjmp.S')
| -rw-r--r-- | arch/mips/lib/setjmp.S | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/mips/lib/setjmp.S b/arch/mips/lib/setjmp.S new file mode 100644 index 0000000000..b09a7c5529 --- /dev/null +++ b/arch/mips/lib/setjmp.S @@ -0,0 +1,50 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <asm/regdef.h> +#include <asm/asm.h> +#include <linux/linkage.h> + +/* int setjmp (jmp_buf); */ +LEAF(setjmp) + sw ra, (0 * 4)(a0) + sw sp, (1 * 4)(a0) + sw s0, (2 * 4)(a0) + sw s1, (3 * 4)(a0) + sw s2, (4 * 4)(a0) + sw s3, (5 * 4)(a0) + sw s4, (6 * 4)(a0) + sw s5, (7 * 4)(a0) + sw s6, (8 * 4)(a0) + sw s7, (9 * 4)(a0) + sw fp, (10 * 4)(a0) + move v0, zero + j ra +END(setjmp) + +/* volatile void longjmp (jmp_buf, int); */ +LEAF(longjmp) + lw ra, (0 * 4)(a0) + lw sp, (1 * 4)(a0) + lw s0, (2 * 4)(a0) + lw s1, (3 * 4)(a0) + lw s2, (4 * 4)(a0) + lw s3, (5 * 4)(a0) + lw s4, (6 * 4)(a0) + lw s5, (7 * 4)(a0) + lw s6, (8 * 4)(a0) + lw s7, (9 * 4)(a0) + lw fp, (10 * 4)(a0) + bne a1, zero, 1f + li a1, 1 +1: + move v0, a1 + j ra +END(longjmp) + +/* int initjmp(jmp_buf jmp, void __noreturn (*func)(void), void *stack_top); */ +LEAF(initjmp) + sw a1, (0 * 4)(a0) + sw a2, (1 * 4)(a0) + move v0, zero + j ra +END(initjmp) |