projects / wasi-libc.git / blame
| Commit | Line | Data |
|---|---|---|
| 320054e8 DG |
1 | .global _longjmp |
| 2 | .global longjmp | |
| 3 | .type _longjmp,@function | |
| 4 | .type longjmp,@function | |
| 5 | _longjmp: | |
| 6 | longjmp: | |
| 7 | /* | |
| 8 | * void longjmp(jmp_buf env, int val); | |
| 9 | * put val into return register and restore the env saved in setjmp | |
| 10 | * if val(r4) is 0, put 1 there. | |
| 11 | */ | |
| 12 | /* 0) move old return address into r0 */ | |
| 13 | lwz 0, 0(3) | |
| 14 | /* 1) put it into link reg */ | |
| 15 | mtlr 0 | |
| 16 | /* 2 ) restore stack ptr */ | |
| 17 | lwz 1, 4(3) | |
| 18 | /* 3) restore control reg */ | |
| 19 | lwz 0, 8(3) | |
| 20 | mtcr 0 | |
| 21 | /* 4) restore r14-r31 */ | |
| 22 | lwz 14, 12(3) | |
| 23 | lwz 15, 16(3) | |
| 24 | lwz 16, 20(3) | |
| 25 | lwz 17, 24(3) | |
| 26 | lwz 18, 28(3) | |
| 27 | lwz 19, 32(3) | |
| 28 | lwz 20, 36(3) | |
| 29 | lwz 21, 40(3) | |
| 30 | lwz 22, 44(3) | |
| 31 | lwz 23, 48(3) | |
| 32 | lwz 24, 52(3) | |
| 33 | lwz 25, 56(3) | |
| 34 | lwz 26, 60(3) | |
| 35 | lwz 27, 64(3) | |
| 36 | lwz 28, 68(3) | |
| 37 | lwz 29, 72(3) | |
| 38 | lwz 30, 76(3) | |
| 39 | lwz 31, 80(3) | |
| 5d8a1409 DG |
40 | #if defined(_SOFT_FLOAT) || defined(__NO_FPRS__) |
| 41 | mflr 0 | |
| 42 | bl 1f | |
| 43 | .hidden __hwcap | |
| 44 | .long __hwcap-. | |
| 45 | 1: mflr 4 | |
| 46 | lwz 5, 0(4) | |
| 47 | lwzx 4, 4, 5 | |
| 48 | andis. 4, 4, 0x80 | |
| 49 | beq 1f | |
| 50 | .long 0x11c35b01 /* evldd 14,88(3) */ | |
| 51 | .long 0x11e36301 /* ... */ | |
| 52 | .long 0x12036b01 | |
| 53 | .long 0x12237301 | |
| 54 | .long 0x12437b01 | |
| 55 | .long 0x12638301 | |
| 56 | .long 0x12838b01 | |
| 57 | .long 0x12a39301 | |
| 58 | .long 0x12c39b01 | |
| 59 | .long 0x12e3a301 | |
| 60 | .long 0x1303ab01 | |
| 61 | .long 0x1323b301 | |
| 62 | .long 0x1343bb01 | |
| 63 | .long 0x1363c301 | |
| 64 | .long 0x1383cb01 | |
| 65 | .long 0x13a3d301 | |
| 66 | .long 0x13c3db01 | |
| 67 | .long 0x13e3e301 /* evldd 31,224(3) */ | |
| 68 | .long 0x11a3eb01 /* evldd 13,232(3) */ | |
| 69 | 1: mtlr 0 | |
| 70 | #else | |
| 320054e8 DG |
71 | lfd 14,88(3) |
| 72 | lfd 15,96(3) | |
| 73 | lfd 16,104(3) | |
| 74 | lfd 17,112(3) | |
| 75 | lfd 18,120(3) | |
| 76 | lfd 19,128(3) | |
| 77 | lfd 20,136(3) | |
| 78 | lfd 21,144(3) | |
| 79 | lfd 22,152(3) | |
| 80 | lfd 23,160(3) | |
| 81 | lfd 24,168(3) | |
| 82 | lfd 25,176(3) | |
| 83 | lfd 26,184(3) | |
| 84 | lfd 27,192(3) | |
| 85 | lfd 28,200(3) | |
| 86 | lfd 29,208(3) | |
| 87 | lfd 30,216(3) | |
| 88 | lfd 31,224(3) | |
| 89 | #endif | |
| 90 | /* 5) put val into return reg r3 */ | |
| 91 | mr 3, 4 | |
| 92 | ||
| 93 | /* 6) check if return value is 0, make it 1 in that case */ | |
| 94 | cmpwi cr7, 4, 0 | |
| 95 | bne cr7, 1f | |
| 96 | li 3, 1 | |
| 97 | 1: | |
| 98 | blr | |
| 99 |