Commit | Line | Data |
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f78541dc PM |
1 | /* |
2 | * Copyright (C) 1996 Paul Mackerras. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
6 | * as published by the Free Software Foundation; either version | |
7 | * 2 of the License, or (at your option) any later version. | |
8 | * | |
9 | * NOTE: assert(sizeof(buf) > 23 * sizeof(long)) | |
10 | */ | |
11 | #include <asm/processor.h> | |
12 | #include <asm/ppc_asm.h> | |
13 | #include <asm/asm-offsets.h> | |
46f52210 | 14 | #include <asm/ptrace.h> |
f78541dc | 15 | |
f78541dc PM |
16 | /* |
17 | * Grab the register values as they are now. | |
18 | * This won't do a particularily good job because we really | |
19 | * want our caller's caller's registers, and our caller has | |
20 | * already executed its prologue. | |
21 | * ToDo: We could reach back into the caller's save area to do | |
22 | * a better job of representing the caller's state (note that | |
23 | * that will be different for 32-bit and 64-bit, because of the | |
24 | * different ABIs, though). | |
25 | */ | |
322b4394 | 26 | _GLOBAL(ppc_save_regs) |
3ddfbcf1 DG |
27 | PPC_STL r0,0*SZL(r3) |
28 | PPC_STL r2,2*SZL(r3) | |
29 | PPC_STL r3,3*SZL(r3) | |
30 | PPC_STL r4,4*SZL(r3) | |
31 | PPC_STL r5,5*SZL(r3) | |
32 | PPC_STL r6,6*SZL(r3) | |
33 | PPC_STL r7,7*SZL(r3) | |
34 | PPC_STL r8,8*SZL(r3) | |
35 | PPC_STL r9,9*SZL(r3) | |
36 | PPC_STL r10,10*SZL(r3) | |
37 | PPC_STL r11,11*SZL(r3) | |
38 | PPC_STL r12,12*SZL(r3) | |
39 | PPC_STL r13,13*SZL(r3) | |
40 | PPC_STL r14,14*SZL(r3) | |
41 | PPC_STL r15,15*SZL(r3) | |
42 | PPC_STL r16,16*SZL(r3) | |
43 | PPC_STL r17,17*SZL(r3) | |
44 | PPC_STL r18,18*SZL(r3) | |
45 | PPC_STL r19,19*SZL(r3) | |
46 | PPC_STL r20,20*SZL(r3) | |
47 | PPC_STL r21,21*SZL(r3) | |
48 | PPC_STL r22,22*SZL(r3) | |
49 | PPC_STL r23,23*SZL(r3) | |
50 | PPC_STL r24,24*SZL(r3) | |
51 | PPC_STL r25,25*SZL(r3) | |
52 | PPC_STL r26,26*SZL(r3) | |
53 | PPC_STL r27,27*SZL(r3) | |
54 | PPC_STL r28,28*SZL(r3) | |
55 | PPC_STL r29,29*SZL(r3) | |
56 | PPC_STL r30,30*SZL(r3) | |
57 | PPC_STL r31,31*SZL(r3) | |
f78541dc | 58 | /* go up one stack frame for SP */ |
3ddfbcf1 DG |
59 | PPC_LL r4,0(r1) |
60 | PPC_STL r4,1*SZL(r3) | |
f78541dc | 61 | /* get caller's LR */ |
3ddfbcf1 DG |
62 | PPC_LL r0,LRSAVE(r4) |
63 | PPC_STL r0,_NIP-STACK_FRAME_OVERHEAD(r3) | |
64 | PPC_STL r0,_LINK-STACK_FRAME_OVERHEAD(r3) | |
f78541dc | 65 | mfmsr r0 |
3ddfbcf1 | 66 | PPC_STL r0,_MSR-STACK_FRAME_OVERHEAD(r3) |
f78541dc | 67 | mfctr r0 |
3ddfbcf1 | 68 | PPC_STL r0,_CTR-STACK_FRAME_OVERHEAD(r3) |
f78541dc | 69 | mfxer r0 |
3ddfbcf1 | 70 | PPC_STL r0,_XER-STACK_FRAME_OVERHEAD(r3) |
f78541dc | 71 | mfcr r0 |
3ddfbcf1 | 72 | PPC_STL r0,_CCR-STACK_FRAME_OVERHEAD(r3) |
f78541dc | 73 | li r0,0 |
3ddfbcf1 | 74 | PPC_STL r0,_TRAP-STACK_FRAME_OVERHEAD(r3) |
f78541dc | 75 | blr |