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c906108c SS |
1 | /* Architecture commands for GDB, the GNU debugger. |
2 | Copyright 1998, Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GDB. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
19 | ||
20 | #ifndef GDBARCH_H | |
21 | #define GDBARCH_H | |
22 | ||
23 | ||
24 | /* The target-system-dependant byte order is dynamic */ | |
25 | ||
26 | /* TARGET_BYTE_ORDER_SELECTABLE_P determines if the target endianness | |
27 | is selectable at runtime. The user can use the `set endian' | |
28 | command to change it. TARGET_BYTE_ORDER_AUTO is nonzero when | |
29 | target_byte_order should be auto-detected (from the program image | |
30 | say). */ | |
31 | ||
32 | #ifndef TARGET_BYTE_ORDER_SELECTABLE_P | |
33 | /* compat - Catch old targets that define TARGET_BYTE_ORDER_SLECTABLE | |
34 | when they should have defined TARGET_BYTE_ORDER_SELECTABLE_P 1 */ | |
35 | #ifdef TARGET_BYTE_ORDER_SELECTABLE | |
36 | #define TARGET_BYTE_ORDER_SELECTABLE_P 1 | |
37 | #else | |
38 | #define TARGET_BYTE_ORDER_SELECTABLE_P 0 | |
39 | #endif | |
40 | #endif | |
41 | ||
42 | extern int target_byte_order; | |
43 | #ifdef TARGET_BYTE_ORDER_SELECTABLE | |
44 | /* compat - Catch old targets that define TARGET_BYTE_ORDER_SELECTABLE | |
45 | and expect defs.h to re-define TARGET_BYTE_ORDER. */ | |
46 | #undef TARGET_BYTE_ORDER | |
47 | #endif | |
48 | #ifndef TARGET_BYTE_ORDER | |
49 | #define TARGET_BYTE_ORDER (target_byte_order + 0) | |
50 | #endif | |
51 | ||
52 | extern int target_byte_order_auto; | |
53 | #ifndef TARGET_BYTE_ORDER_AUTO | |
54 | #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0) | |
55 | #endif | |
56 | ||
57 | ||
58 | ||
59 | /* The target-system-dependant BFD architecture is dynamic */ | |
60 | ||
61 | extern int target_architecture_auto; | |
62 | #ifndef TARGET_ARCHITECTURE_AUTO | |
63 | #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0) | |
64 | #endif | |
65 | ||
66 | extern const struct bfd_arch_info *target_architecture; | |
67 | #ifndef TARGET_ARCHITECTURE | |
68 | #define TARGET_ARCHITECTURE (target_architecture + 0) | |
69 | #endif | |
70 | ||
71 | /* Notify the target dependant backend of a change to the selected | |
72 | architecture. A zero return status indicates that the target did | |
73 | not like the change. */ | |
74 | ||
75 | extern int (*target_architecture_hook) PARAMS ((const struct bfd_arch_info *)); | |
76 | ||
77 | ||
78 | ||
79 | /* The target-system-dependant disassembler is semi-dynamic */ | |
80 | ||
81 | #include "dis-asm.h" /* Get defs for disassemble_info */ | |
82 | ||
83 | extern int dis_asm_read_memory PARAMS ((bfd_vma memaddr, bfd_byte *myaddr, | |
84 | int len, disassemble_info *info)); | |
85 | ||
86 | extern void dis_asm_memory_error PARAMS ((int status, bfd_vma memaddr, | |
87 | disassemble_info *info)); | |
88 | ||
89 | extern void dis_asm_print_address PARAMS ((bfd_vma addr, | |
90 | disassemble_info *info)); | |
91 | ||
92 | extern int (*tm_print_insn) PARAMS ((bfd_vma, disassemble_info*)); | |
93 | extern disassemble_info tm_print_insn_info; | |
94 | #ifndef TARGET_PRINT_INSN | |
95 | #define TARGET_PRINT_INSN(vma, info) (*tm_print_insn) (vma, info) | |
96 | #endif | |
97 | #ifndef TARGET_PRINT_INSN_INFO | |
98 | #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info) | |
99 | #endif | |
100 | ||
101 | ||
102 | ||
103 | /* Set the dynamic target-system-dependant parameters (architecture, | |
104 | byte-order, ...) using information found in the BFD */ | |
105 | ||
106 | extern void set_gdbarch_from_file PARAMS ((bfd *)); | |
107 | ||
108 | ||
109 | /* Explicitly set the dynamic target-system-dependant parameters based | |
110 | on bfd_architecture and machine. */ | |
111 | ||
112 | extern void set_architecture_from_arch_mach PARAMS ((enum bfd_architecture, unsigned long)); | |
113 | ||
114 | ||
115 | /* gdbarch trace variable */ | |
116 | extern int gdbarch_debug; | |
117 | ||
118 | #endif |