diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-v850/ptrace.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-v850/ptrace.h')
-rw-r--r-- | include/asm-v850/ptrace.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/include/asm-v850/ptrace.h b/include/asm-v850/ptrace.h new file mode 100644 index 000000000000..7bf72bb5078c --- /dev/null +++ b/include/asm-v850/ptrace.h | |||
@@ -0,0 +1,121 @@ | |||
1 | /* | ||
2 | * include/asm-v850/ptrace.h -- Access to CPU registers | ||
3 | * | ||
4 | * Copyright (C) 2001,02,03 NEC Electronics Corporation | ||
5 | * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org> | ||
6 | * | ||
7 | * This file is subject to the terms and conditions of the GNU General | ||
8 | * Public License. See the file COPYING in the main directory of this | ||
9 | * archive for more details. | ||
10 | * | ||
11 | * Written by Miles Bader <miles@gnu.org> | ||
12 | */ | ||
13 | |||
14 | #ifndef __V850_PTRACE_H__ | ||
15 | #define __V850_PTRACE_H__ | ||
16 | |||
17 | |||
18 | /* v850 general purpose registers with special meanings. */ | ||
19 | #define GPR_ZERO 0 /* constant zero */ | ||
20 | #define GPR_ASM 1 /* reserved for assembler */ | ||
21 | #define GPR_SP 3 /* stack pointer */ | ||
22 | #define GPR_GP 4 /* global data pointer */ | ||
23 | #define GPR_TP 5 /* `text pointer' */ | ||
24 | #define GPR_EP 30 /* `element pointer' */ | ||
25 | #define GPR_LP 31 /* link pointer (current return address) */ | ||
26 | |||
27 | /* These aren't official names, but they make some code more descriptive. */ | ||
28 | #define GPR_ARG0 6 | ||
29 | #define GPR_ARG1 7 | ||
30 | #define GPR_ARG2 8 | ||
31 | #define GPR_ARG3 9 | ||
32 | #define GPR_RVAL0 10 | ||
33 | #define GPR_RVAL1 11 | ||
34 | #define GPR_RVAL GPR_RVAL0 | ||
35 | |||
36 | #define NUM_GPRS 32 | ||
37 | |||
38 | /* v850 `system' registers. */ | ||
39 | #define SR_EIPC 0 | ||
40 | #define SR_EIPSW 1 | ||
41 | #define SR_FEPC 2 | ||
42 | #define SR_FEPSW 3 | ||
43 | #define SR_ECR 4 | ||
44 | #define SR_PSW 5 | ||
45 | #define SR_CTPC 16 | ||
46 | #define SR_CTPSW 17 | ||
47 | #define SR_DBPC 18 | ||
48 | #define SR_DBPSW 19 | ||
49 | #define SR_CTBP 20 | ||
50 | #define SR_DIR 21 | ||
51 | #define SR_ASID 23 | ||
52 | |||
53 | |||
54 | #ifndef __ASSEMBLY__ | ||
55 | |||
56 | typedef unsigned long v850_reg_t; | ||
57 | |||
58 | /* How processor state is stored on the stack during a syscall/signal. | ||
59 | If you change this structure, change the associated assembly-language | ||
60 | macros below too (PT_*)! */ | ||
61 | struct pt_regs | ||
62 | { | ||
63 | /* General purpose registers. */ | ||
64 | v850_reg_t gpr[NUM_GPRS]; | ||
65 | |||
66 | v850_reg_t pc; /* program counter */ | ||
67 | v850_reg_t psw; /* program status word */ | ||
68 | |||
69 | /* Registers used by `callt' instruction: */ | ||
70 | v850_reg_t ctpc; /* saved program counter */ | ||
71 | v850_reg_t ctpsw; /* saved psw */ | ||
72 | v850_reg_t ctbp; /* base pointer for callt table */ | ||
73 | |||
74 | char kernel_mode; /* 1 if in `kernel mode', 0 if user mode */ | ||
75 | }; | ||
76 | |||
77 | |||
78 | #define instruction_pointer(regs) ((regs)->pc) | ||
79 | #define profile_pc(regs) instruction_pointer(regs) | ||
80 | #define user_mode(regs) (!(regs)->kernel_mode) | ||
81 | |||
82 | /* When a struct pt_regs is used to save user state for a system call in | ||
83 | the kernel, the system call is stored in the space for R0 (since it's | ||
84 | never used otherwise, R0 being a constant 0). Non-system-calls | ||
85 | simply store 0 there. */ | ||
86 | #define PT_REGS_SYSCALL(regs) (regs)->gpr[0] | ||
87 | #define PT_REGS_SET_SYSCALL(regs, val) ((regs)->gpr[0] = (val)) | ||
88 | |||
89 | #endif /* !__ASSEMBLY__ */ | ||
90 | |||
91 | |||
92 | /* The number of bytes used to store each register. */ | ||
93 | #define _PT_REG_SIZE 4 | ||
94 | |||
95 | /* Offset of a general purpose register in a stuct pt_regs. */ | ||
96 | #define PT_GPR(num) ((num) * _PT_REG_SIZE) | ||
97 | |||
98 | /* Offsets of various special registers & fields in a struct pt_regs. */ | ||
99 | #define PT_PC ((NUM_GPRS + 0) * _PT_REG_SIZE) | ||
100 | #define PT_PSW ((NUM_GPRS + 1) * _PT_REG_SIZE) | ||
101 | #define PT_CTPC ((NUM_GPRS + 2) * _PT_REG_SIZE) | ||
102 | #define PT_CTPSW ((NUM_GPRS + 3) * _PT_REG_SIZE) | ||
103 | #define PT_CTBP ((NUM_GPRS + 4) * _PT_REG_SIZE) | ||
104 | #define PT_KERNEL_MODE ((NUM_GPRS + 5) * _PT_REG_SIZE) | ||
105 | |||
106 | /* Where the current syscall number is stashed; obviously only valid in | ||
107 | the kernel! */ | ||
108 | #define PT_CUR_SYSCALL PT_GPR(0) | ||
109 | |||
110 | /* Size of struct pt_regs, including alignment. */ | ||
111 | #define PT_SIZE ((NUM_GPRS + 6) * _PT_REG_SIZE) | ||
112 | |||
113 | |||
114 | /* These are `magic' values for PTRACE_PEEKUSR that return info about where | ||
115 | a process is located in memory. */ | ||
116 | #define PT_TEXT_ADDR (PT_SIZE + 1) | ||
117 | #define PT_TEXT_LEN (PT_SIZE + 2) | ||
118 | #define PT_DATA_ADDR (PT_SIZE + 3) | ||
119 | |||
120 | |||
121 | #endif /* __V850_PTRACE_H__ */ | ||