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8c2f4a8d VG |
1 | /* |
2 | * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * Amit Bhor, Sameer Dhavale: Codito Technologies 2004 | |
9 | */ | |
10 | ||
11 | #ifndef _UAPI__ASM_ARC_PTRACE_H | |
12 | #define _UAPI__ASM_ARC_PTRACE_H | |
13 | ||
a4b6cb73 | 14 | #define PTRACE_GET_THREAD_AREA 25 |
8c2f4a8d VG |
15 | |
16 | #ifndef __ASSEMBLY__ | |
17 | /* | |
18 | * Userspace ABI: Register state needed by | |
19 | * -ptrace (gdbserver) | |
20 | * -sigcontext (SA_SIGNINFO signal frame) | |
21 | * | |
22 | * This is to decouple pt_regs from user-space ABI, to be able to change it | |
23 | * w/o affecting the ABI. | |
2fa91904 VG |
24 | * |
25 | * The intermediate pad,pad2 are relics of initial layout based on pt_regs | |
26 | * for optimizations when copying pt_regs to/from user_regs_struct. | |
27 | * We no longer need them, but can't be changed as they are part of ABI now. | |
8c2f4a8d VG |
28 | * |
29 | * Also, sigcontext only care about the scratch regs as that is what we really | |
2fa91904 VG |
30 | * save/restore for signal handling. However gdb also uses the same struct |
31 | * hence callee regs need to be in there too. | |
8c2f4a8d VG |
32 | */ |
33 | struct user_regs_struct { | |
34 | ||
2fa91904 | 35 | long pad; |
1540c85b | 36 | struct { |
8c2f4a8d VG |
37 | long bta, lp_start, lp_end, lp_count; |
38 | long status32, ret, blink, fp, gp; | |
39 | long r12, r11, r10, r9, r8, r7, r6, r5, r4, r3, r2, r1, r0; | |
40 | long sp; | |
41 | } scratch; | |
16f9afe6 | 42 | long pad2; |
1540c85b | 43 | struct { |
8c2f4a8d VG |
44 | long r25, r24, r23, r22, r21, r20; |
45 | long r19, r18, r17, r16, r15, r14, r13; | |
46 | } callee; | |
47 | long efa; /* break pt addr, for break points in delay slots */ | |
352c1d95 | 48 | long stop_pc; /* give dbg stop_pc after ensuring brkpt trap */ |
8c2f4a8d VG |
49 | }; |
50 | #endif /* !__ASSEMBLY__ */ | |
51 | ||
52 | #endif /* _UAPI__ASM_ARC_PTRACE_H */ |