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1 | /* 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> | |
e7bc537d | 15 | #ifdef __KERNEL__ |
7d12e780 | 16 | #include <asm/irq_regs.h> |
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17 | |
18 | #define in_syscall(regs) (((regs)->tbr & TBR_TT) == TBR_TT_TRAP0) | |
e7bc537d | 19 | #endif |
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20 | |
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 | ||
e7bc537d | 65 | #ifdef __KERNEL__ |
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66 | #ifndef __ASSEMBLY__ |
67 | ||
68 | /* | |
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69 | * we dedicate GR28 to keeping a pointer to the current exception frame |
70 | * - gr28 is destroyed on entry to the kernel from userspace | |
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71 | */ |
72 | register struct pt_regs *__frame asm("gr28"); | |
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73 | |
74 | #define user_mode(regs) (!((regs)->psr & PSR_S)) | |
75 | #define instruction_pointer(regs) ((regs)->pc) | |
76 | ||
77 | extern unsigned long user_stack(const struct pt_regs *); | |
78 | extern void show_regs(struct pt_regs *); | |
79 | #define profile_pc(regs) ((regs)->pc) | |
e7bc537d | 80 | #endif |
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81 | |
82 | #endif /* !__ASSEMBLY__ */ | |
83 | #endif /* _ASM_PTRACE_H */ |