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| 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
|---|---|
| 2 | /* |
| 3 | * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License version 2 as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * Amit Bhor, Sameer Dhavale: Codito Technologies 2004 |
| 10 | */ |
| 11 | |
| 12 | #ifndef _UAPI__ASM_ARC_PTRACE_H |
| 13 | #define _UAPI__ASM_ARC_PTRACE_H |
| 14 | |
| 15 | #define PTRACE_GET_THREAD_AREA 25 |
| 16 | |
| 17 | #ifndef __ASSEMBLY__ |
| 18 | /* |
| 19 | * Userspace ABI: Register state needed by |
| 20 | * -ptrace (gdbserver) |
| 21 | * -sigcontext (SA_SIGNINFO signal frame) |
| 22 | * |
| 23 | * This is to decouple pt_regs from user-space ABI, to be able to change it |
| 24 | * w/o affecting the ABI. |
| 25 | * |
| 26 | * The intermediate pad,pad2 are relics of initial layout based on pt_regs |
| 27 | * for optimizations when copying pt_regs to/from user_regs_struct. |
| 28 | * We no longer need them, but can't be changed as they are part of ABI now. |
| 29 | * |
| 30 | * Also, sigcontext only care about the scratch regs as that is what we really |
| 31 | * save/restore for signal handling. However gdb also uses the same struct |
| 32 | * hence callee regs need to be in there too. |
| 33 | */ |
| 34 | struct user_regs_struct { |
| 35 | |
| 36 | unsigned long pad; |
| 37 | struct { |
| 38 | unsigned long bta, lp_start, lp_end, lp_count; |
| 39 | unsigned long status32, ret, blink, fp, gp; |
| 40 | unsigned long r12, r11, r10, r9, r8, r7, r6, r5, r4, r3, r2, r1, r0; |
| 41 | unsigned long sp; |
| 42 | } scratch; |
| 43 | unsigned long pad2; |
| 44 | struct { |
| 45 | unsigned long r25, r24, r23, r22, r21, r20; |
| 46 | unsigned long r19, r18, r17, r16, r15, r14, r13; |
| 47 | } callee; |
| 48 | unsigned long efa; /* break pt addr, for break points in delay slots */ |
| 49 | unsigned long stop_pc; /* give dbg stop_pc after ensuring brkpt trap */ |
| 50 | }; |
| 51 | |
| 52 | struct user_regs_arcv2 { |
| 53 | unsigned long r30, r58, r59; |
| 54 | }; |
| 55 | |
| 56 | #endif /* !__ASSEMBLY__ */ |
| 57 | |
| 58 | #endif /* _UAPI__ASM_ARC_PTRACE_H */ |
| 59 |
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