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Tom Rini83d290c2018-05-06 17:58:06 -04001/* SPDX-License-Identifier: LGPL-2.1+ */
wdenk85ec0bc2003-03-31 16:34:49 +00002/* longjmp for PowerPC.
3 Copyright (C) 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
Wolfgang Denkeee479c2013-07-08 11:48:07 +02005 */
wdenk85ec0bc2003-03-31 16:34:49 +00006
7#include <ppc_asm.tmpl>
8
9# define JB_GPR1 0 /* Also known as the stack pointer */
10# define JB_GPR2 1
11# define JB_LR 2 /* The address we will return to */
12# define JB_GPRS 3 /* GPRs 14 through 31 are saved, 18 in total */
13# define JB_CR 21 /* Condition code registers. */
14# define JB_FPRS 22 /* FPRs 14 through 31 are saved, 18*2 words total */
15# define JB_SIZE (58*4)
16
17#define FP(x...) x
18#define FP(x...) x
19
wdenk3e386912003-04-05 00:53:31 +000020.globl ppc_longjmp;
wdenk85ec0bc2003-03-31 16:34:49 +000021
wdenk3e386912003-04-05 00:53:31 +000022ppc_longjmp:
wdenk85ec0bc2003-03-31 16:34:49 +000023 lwz r1,(JB_GPR1*4)(r3)
24 lwz r2,(JB_GPR2*4)(r3)
25 lwz r0,(JB_LR*4)(r3)
26 lwz r14,((JB_GPRS+0)*4)(r3)
27FP( lfd 14,((JB_FPRS+0*2)*4)(r3))
28 lwz r15,((JB_GPRS+1)*4)(r3)
29FP( lfd 15,((JB_FPRS+1*2)*4)(r3))
30 lwz r16,((JB_GPRS+2)*4)(r3)
31FP( lfd 16,((JB_FPRS+2*2)*4)(r3))
32 lwz r17,((JB_GPRS+3)*4)(r3)
33FP( lfd 17,((JB_FPRS+3*2)*4)(r3))
34 lwz r18,((JB_GPRS+4)*4)(r3)
35FP( lfd 18,((JB_FPRS+4*2)*4)(r3))
36 lwz r19,((JB_GPRS+5)*4)(r3)
37FP( lfd 19,((JB_FPRS+5*2)*4)(r3))
38 lwz r20,((JB_GPRS+6)*4)(r3)
39FP( lfd 20,((JB_FPRS+6*2)*4)(r3))
40 mtlr r0
41 lwz r21,((JB_GPRS+7)*4)(r3)
42FP( lfd 21,((JB_FPRS+7*2)*4)(r3))
43 lwz r22,((JB_GPRS+8)*4)(r3)
44FP( lfd 22,((JB_FPRS+8*2)*4)(r3))
45 lwz r0,(JB_CR*4)(r3)
46 lwz r23,((JB_GPRS+9)*4)(r3)
47FP( lfd 23,((JB_FPRS+9*2)*4)(r3))
48 lwz r24,((JB_GPRS+10)*4)(r3)
49FP( lfd 24,((JB_FPRS+10*2)*4)(r3))
50 lwz r25,((JB_GPRS+11)*4)(r3)
51FP( lfd 25,((JB_FPRS+11*2)*4)(r3))
52 mtcrf 0xFF,r0
53 lwz r26,((JB_GPRS+12)*4)(r3)
54FP( lfd 26,((JB_FPRS+12*2)*4)(r3))
55 lwz r27,((JB_GPRS+13)*4)(r3)
56FP( lfd 27,((JB_FPRS+13*2)*4)(r3))
57 lwz r28,((JB_GPRS+14)*4)(r3)
58FP( lfd 28,((JB_FPRS+14*2)*4)(r3))
59 lwz r29,((JB_GPRS+15)*4)(r3)
60FP( lfd 29,((JB_FPRS+15*2)*4)(r3))
61 lwz r30,((JB_GPRS+16)*4)(r3)
62FP( lfd 30,((JB_FPRS+16*2)*4)(r3))
63 lwz r31,((JB_GPRS+17)*4)(r3)
64FP( lfd 31,((JB_FPRS+17*2)*4)(r3))
65 mr r3,r4
66 blr