blob: cf6934012b64dc70736e26073470e143b2ed11ab [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* ptrace.h: ptrace() relevant definitions
2 *
3 * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11#ifndef _ASM_PTRACE_H
12#define _ASM_PTRACE_H
13
14#include <asm/registers.h>
Al Viroe7bc5372007-02-01 13:08:45 +000015#ifdef __KERNEL__
David Howells7d12e782006-10-05 14:55:46 +010016#include <asm/irq_regs.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070017
18#define in_syscall(regs) (((regs)->tbr & TBR_TT) == TBR_TT_TRAP0)
Al Viroe7bc5372007-02-01 13:08:45 +000019#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070020
21
22#define PT_PSR 0
23#define PT_ISR 1
24#define PT_CCR 2
25#define PT_CCCR 3
26#define PT_LR 4
27#define PT_LCR 5
28#define PT_PC 6
29
30#define PT__STATUS 7 /* exception status */
31#define PT_SYSCALLNO 8 /* syscall number or -1 */
32#define PT_ORIG_GR8 9 /* saved GR8 for signal handling */
33#define PT_GNER0 10
34#define PT_GNER1 11
35#define PT_IACC0H 12
36#define PT_IACC0L 13
37
38#define PT_GR(j) ( 14 + (j)) /* GRj for 0<=j<=63 */
39#define PT_FR(j) ( 78 + (j)) /* FRj for 0<=j<=63 */
40#define PT_FNER(j) (142 + (j)) /* FNERj for 0<=j<=1 */
41#define PT_MSR(j) (144 + (j)) /* MSRj for 0<=j<=2 */
42#define PT_ACC(j) (146 + (j)) /* ACCj for 0<=j<=7 */
43#define PT_ACCG(jklm) (154 + (jklm)) /* ACCGjklm for 0<=jklm<=1 (reads four regs per slot) */
44#define PT_FSR(j) (156 + (j)) /* FSRj for 0<=j<=0 */
45#define PT__GPEND 78
46#define PT__END 157
47
48#define PT_TBR PT_GR(0)
49#define PT_SP PT_GR(1)
50#define PT_FP PT_GR(2)
51#define PT_PREV_FRAME PT_GR(28) /* previous exception frame pointer (old gr28 value) */
52#define PT_CURR_TASK PT_GR(29) /* current task */
53
54
55/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
56#define PTRACE_GETREGS 12
57#define PTRACE_SETREGS 13
58#define PTRACE_GETFPREGS 14
59#define PTRACE_SETFPREGS 15
60#define PTRACE_GETFDPIC 31 /* get the ELF fdpic loadmap address */
61
62#define PTRACE_GETFDPIC_EXEC 0 /* [addr] request the executable loadmap */
63#define PTRACE_GETFDPIC_INTERP 1 /* [addr] request the interpreter loadmap */
64
Al Viroe7bc5372007-02-01 13:08:45 +000065#ifdef __KERNEL__
Linus Torvalds1da177e2005-04-16 15:20:36 -070066#ifndef __ASSEMBLY__
67
68/*
David Howells84e8cd62006-07-10 04:44:55 -070069 * we dedicate GR28 to keeping a pointer to the current exception frame
70 * - gr28 is destroyed on entry to the kernel from userspace
Linus Torvalds1da177e2005-04-16 15:20:36 -070071 */
72register struct pt_regs *__frame asm("gr28");
Linus Torvalds1da177e2005-04-16 15:20:36 -070073
74#define user_mode(regs) (!((regs)->psr & PSR_S))
75#define instruction_pointer(regs) ((regs)->pc)
76
77extern unsigned long user_stack(const struct pt_regs *);
78extern void show_regs(struct pt_regs *);
79#define profile_pc(regs) ((regs)->pc)
Al Viroe7bc5372007-02-01 13:08:45 +000080#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070081
82#endif /* !__ASSEMBLY__ */
83#endif /* _ASM_PTRACE_H */