xref: /aosp_15_r20/external/musl/src/setjmp/powerpc/longjmp.S (revision c9945492fdd68bbe62686c5b452b4dc1be3f8453)
1*c9945492SAndroid Build Coastguard Worker	.global _longjmp
2*c9945492SAndroid Build Coastguard Worker	.global longjmp
3*c9945492SAndroid Build Coastguard Worker	.type   _longjmp,@function
4*c9945492SAndroid Build Coastguard Worker	.type   longjmp,@function
5*c9945492SAndroid Build Coastguard Worker_longjmp:
6*c9945492SAndroid Build Coastguard Workerlongjmp:
7*c9945492SAndroid Build Coastguard Worker	/*
8*c9945492SAndroid Build Coastguard Worker	 * void longjmp(jmp_buf env, int val);
9*c9945492SAndroid Build Coastguard Worker	 * put val into return register and restore the env saved in setjmp
10*c9945492SAndroid Build Coastguard Worker	 * if val(r4) is 0, put 1 there.
11*c9945492SAndroid Build Coastguard Worker	 */
12*c9945492SAndroid Build Coastguard Worker	/* 0) move old return address into r0 */
13*c9945492SAndroid Build Coastguard Worker	lwz 0, 0(3)
14*c9945492SAndroid Build Coastguard Worker	/* 1) put it into link reg */
15*c9945492SAndroid Build Coastguard Worker	mtlr 0
16*c9945492SAndroid Build Coastguard Worker	/* 2 ) restore stack ptr */
17*c9945492SAndroid Build Coastguard Worker	lwz 1, 4(3)
18*c9945492SAndroid Build Coastguard Worker	/* 3) restore control reg */
19*c9945492SAndroid Build Coastguard Worker	lwz 0, 8(3)
20*c9945492SAndroid Build Coastguard Worker	mtcr 0
21*c9945492SAndroid Build Coastguard Worker	/* 4) restore r14-r31 */
22*c9945492SAndroid Build Coastguard Worker	lwz 14, 12(3)
23*c9945492SAndroid Build Coastguard Worker	lwz 15, 16(3)
24*c9945492SAndroid Build Coastguard Worker	lwz 16, 20(3)
25*c9945492SAndroid Build Coastguard Worker	lwz 17, 24(3)
26*c9945492SAndroid Build Coastguard Worker	lwz 18, 28(3)
27*c9945492SAndroid Build Coastguard Worker	lwz 19, 32(3)
28*c9945492SAndroid Build Coastguard Worker	lwz 20, 36(3)
29*c9945492SAndroid Build Coastguard Worker	lwz 21, 40(3)
30*c9945492SAndroid Build Coastguard Worker	lwz 22, 44(3)
31*c9945492SAndroid Build Coastguard Worker	lwz 23, 48(3)
32*c9945492SAndroid Build Coastguard Worker	lwz 24, 52(3)
33*c9945492SAndroid Build Coastguard Worker	lwz 25, 56(3)
34*c9945492SAndroid Build Coastguard Worker	lwz 26, 60(3)
35*c9945492SAndroid Build Coastguard Worker	lwz 27, 64(3)
36*c9945492SAndroid Build Coastguard Worker	lwz 28, 68(3)
37*c9945492SAndroid Build Coastguard Worker	lwz 29, 72(3)
38*c9945492SAndroid Build Coastguard Worker	lwz 30, 76(3)
39*c9945492SAndroid Build Coastguard Worker	lwz 31, 80(3)
40*c9945492SAndroid Build Coastguard Worker#if defined(_SOFT_FLOAT) || defined(__NO_FPRS__)
41*c9945492SAndroid Build Coastguard Worker	mflr 0
42*c9945492SAndroid Build Coastguard Worker	bl 1f
43*c9945492SAndroid Build Coastguard Worker	.hidden __hwcap
44*c9945492SAndroid Build Coastguard Worker	.long __hwcap-.
45*c9945492SAndroid Build Coastguard Worker1:	mflr 6
46*c9945492SAndroid Build Coastguard Worker	lwz 5, 0(6)
47*c9945492SAndroid Build Coastguard Worker	lwzx 6, 6, 5
48*c9945492SAndroid Build Coastguard Worker	andis. 6, 6, 0x80
49*c9945492SAndroid Build Coastguard Worker	beq 1f
50*c9945492SAndroid Build Coastguard Worker	.long 0x11c35b01 /* evldd 14,88(3) */
51*c9945492SAndroid Build Coastguard Worker	.long 0x11e36301 /* ... */
52*c9945492SAndroid Build Coastguard Worker	.long 0x12036b01
53*c9945492SAndroid Build Coastguard Worker	.long 0x12237301
54*c9945492SAndroid Build Coastguard Worker	.long 0x12437b01
55*c9945492SAndroid Build Coastguard Worker	.long 0x12638301
56*c9945492SAndroid Build Coastguard Worker	.long 0x12838b01
57*c9945492SAndroid Build Coastguard Worker	.long 0x12a39301
58*c9945492SAndroid Build Coastguard Worker	.long 0x12c39b01
59*c9945492SAndroid Build Coastguard Worker	.long 0x12e3a301
60*c9945492SAndroid Build Coastguard Worker	.long 0x1303ab01
61*c9945492SAndroid Build Coastguard Worker	.long 0x1323b301
62*c9945492SAndroid Build Coastguard Worker	.long 0x1343bb01
63*c9945492SAndroid Build Coastguard Worker	.long 0x1363c301
64*c9945492SAndroid Build Coastguard Worker	.long 0x1383cb01
65*c9945492SAndroid Build Coastguard Worker	.long 0x13a3d301
66*c9945492SAndroid Build Coastguard Worker	.long 0x13c3db01
67*c9945492SAndroid Build Coastguard Worker	.long 0x13e3e301 /* evldd 31,224(3) */
68*c9945492SAndroid Build Coastguard Worker	.long 0x11a3eb01 /* evldd 13,232(3) */
69*c9945492SAndroid Build Coastguard Worker1:	mtlr 0
70*c9945492SAndroid Build Coastguard Worker#else
71*c9945492SAndroid Build Coastguard Worker	lfd 14,88(3)
72*c9945492SAndroid Build Coastguard Worker	lfd 15,96(3)
73*c9945492SAndroid Build Coastguard Worker	lfd 16,104(3)
74*c9945492SAndroid Build Coastguard Worker	lfd 17,112(3)
75*c9945492SAndroid Build Coastguard Worker	lfd 18,120(3)
76*c9945492SAndroid Build Coastguard Worker	lfd 19,128(3)
77*c9945492SAndroid Build Coastguard Worker	lfd 20,136(3)
78*c9945492SAndroid Build Coastguard Worker	lfd 21,144(3)
79*c9945492SAndroid Build Coastguard Worker	lfd 22,152(3)
80*c9945492SAndroid Build Coastguard Worker	lfd 23,160(3)
81*c9945492SAndroid Build Coastguard Worker	lfd 24,168(3)
82*c9945492SAndroid Build Coastguard Worker	lfd 25,176(3)
83*c9945492SAndroid Build Coastguard Worker	lfd 26,184(3)
84*c9945492SAndroid Build Coastguard Worker	lfd 27,192(3)
85*c9945492SAndroid Build Coastguard Worker	lfd 28,200(3)
86*c9945492SAndroid Build Coastguard Worker	lfd 29,208(3)
87*c9945492SAndroid Build Coastguard Worker	lfd 30,216(3)
88*c9945492SAndroid Build Coastguard Worker	lfd 31,224(3)
89*c9945492SAndroid Build Coastguard Worker#endif
90*c9945492SAndroid Build Coastguard Worker	/* 5) put val into return reg r3 */
91*c9945492SAndroid Build Coastguard Worker	mr 3, 4
92*c9945492SAndroid Build Coastguard Worker
93*c9945492SAndroid Build Coastguard Worker	/* 6) check if return value is 0, make it 1 in that case */
94*c9945492SAndroid Build Coastguard Worker	cmpwi cr7, 4, 0
95*c9945492SAndroid Build Coastguard Worker	bne cr7, 1f
96*c9945492SAndroid Build Coastguard Worker	li 3, 1
97*c9945492SAndroid Build Coastguard Worker1:
98*c9945492SAndroid Build Coastguard Worker	blr
99*c9945492SAndroid Build Coastguard Worker
100