projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 5ba3f43e A |
1 | #include <arm64/proc_reg.h> |
| 2 | #include <mach/arm64/asm.h> | |
| 3 | #include <architecture/arm/asm_help.h> | |
| 4 | ||
| 5 | #define JMP_r19_20 #0x00 | |
| 6 | #define JMP_r21_22 #0x10 | |
| 7 | #define JMP_r23_24 #0x20 | |
| 8 | #define JMP_r25_26 #0x30 | |
| 9 | #define JMP_r27_28 #0x40 | |
| 10 | #define JMP_r29_lr #0x50 | |
| 11 | #define JMP_fp_sp #0x60 | |
| 12 | ||
| 13 | #define JMP_d8_d9 #0x70 | |
| 14 | #define JMP_d10_d11 #0x80 | |
| 15 | #define JMP_d12_d13 #0x90 | |
| 16 | #define JMP_d14_d15 #0xA0 | |
| 17 | ||
| 18 | .text | |
| 19 | ||
| 20 | .align 5 | |
| 21 | .globl EXT(_setjmp) | |
| 22 | LEXT(_setjmp) | |
| 23 | add x1, sp, #0 /* can't STP from sp */ | |
| 24 | stp x19, x20, [x0, JMP_r19_20] | |
| 25 | stp x21, x22, [x0, JMP_r21_22] | |
| 26 | stp x23, x24, [x0, JMP_r23_24] | |
| 27 | stp x25, x26, [x0, JMP_r25_26] | |
| 28 | stp x27, x28, [x0, JMP_r27_28] | |
| 29 | stp x29, lr, [x0, JMP_r29_lr] | |
| 30 | stp fp, x1, [x0, JMP_fp_sp] | |
| 31 | stp d8, d9, [x0, JMP_d8_d9] | |
| 32 | stp d10, d11, [x0, JMP_d10_d11] | |
| 33 | stp d12, d13, [x0, JMP_d12_d13] | |
| 34 | stp d14, d15, [x0, JMP_d14_d15] | |
| 35 | mov x0, #0 | |
| 36 | ret | |
| 37 | ||
| 38 | .align 5 | |
| 39 | .globl EXT(_longjmp) | |
| 40 | LEXT(_longjmp) | |
| 41 | ldp x19, x20, [x0, JMP_r19_20] | |
| 42 | ldp x21, x22, [x0, JMP_r21_22] | |
| 43 | ldp x23, x24, [x0, JMP_r23_24] | |
| 44 | ldp x25, x26, [x0, JMP_r25_26] | |
| 45 | ldp x27, x28, [x0, JMP_r27_28] | |
| 46 | ldp x29, lr, [x0, JMP_r29_lr] | |
| 47 | ldp fp, x2, [x0, JMP_fp_sp] | |
| 48 | ldp d8, d9, [x0, JMP_d8_d9] | |
| 49 | ldp d10, d11, [x0, JMP_d10_d11] | |
| 50 | ldp d12, d13, [x0, JMP_d12_d13] | |
| 51 | ldp d14, d15, [x0, JMP_d14_d15] | |
| 52 | add sp, x2, #0 | |
| 53 | mov x0, x1 | |
| 54 | cmp x0, #0 /* longjmp returns 1 if val is 0 */ | |
| 55 | b.ne 1f | |
| 56 | add x0, x0, #1 | |
| 57 | 1: ret | |
| 58 |