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1 | /* Target-dependent header for the MIPS architecture, for GDB, the GNU Debugger. |
2 | ||
9b254dd1 | 3 | Copyright (C) 2002, 2003, 2007, 2008 Free Software Foundation, Inc. |
d1973055 KB |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
d1973055 KB |
10 | (at your option) any later version. |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
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19 | |
20 | #ifndef MIPS_TDEP_H | |
21 | #define MIPS_TDEP_H | |
22 | ||
da3331ec AC |
23 | struct gdbarch; |
24 | ||
d1973055 KB |
25 | /* All the possible MIPS ABIs. */ |
26 | enum mips_abi | |
27 | { | |
28 | MIPS_ABI_UNKNOWN = 0, | |
29 | MIPS_ABI_N32, | |
30 | MIPS_ABI_O32, | |
31 | MIPS_ABI_N64, | |
32 | MIPS_ABI_O64, | |
33 | MIPS_ABI_EABI32, | |
34 | MIPS_ABI_EABI64, | |
35 | MIPS_ABI_LAST | |
36 | }; | |
37 | ||
38 | /* Return the MIPS ABI associated with GDBARCH. */ | |
39 | enum mips_abi mips_abi (struct gdbarch *gdbarch); | |
40 | ||
1b13c4f6 | 41 | /* Return the MIPS ISA's register size. Just a short cut to the BFD |
4246e332 | 42 | architecture's word size. */ |
1b13c4f6 | 43 | extern int mips_isa_regsize (struct gdbarch *gdbarch); |
4246e332 | 44 | |
56cea623 AC |
45 | /* Return the current index for various MIPS registers. */ |
46 | struct mips_regnum | |
47 | { | |
48 | int pc; | |
49 | int fp0; | |
50 | int fp_implementation_revision; | |
51 | int fp_control_status; | |
52 | int badvaddr; /* Bad vaddr for addressing exception. */ | |
53 | int cause; /* Describes last exception. */ | |
54 | int hi; /* Multiply/divide temp. */ | |
55 | int lo; /* ... */ | |
56 | }; | |
57 | extern const struct mips_regnum *mips_regnum (struct gdbarch *gdbarch); | |
58 | ||
7157eed4 | 59 | /* Register numbers of various important registers. */ |
613e114f | 60 | |
9c46b6f0 MK |
61 | enum |
62 | { | |
613e114f | 63 | MIPS_ZERO_REGNUM = 0, /* Read-only register, always 0. */ |
9c46b6f0 | 64 | MIPS_AT_REGNUM = 1, |
613e114f AC |
65 | MIPS_V0_REGNUM = 2, /* Function integer return value. */ |
66 | MIPS_A0_REGNUM = 4, /* Loc of first arg during a subr call */ | |
67 | MIPS_T9_REGNUM = 25, /* Contains address of callee in PIC. */ | |
f10683bb | 68 | MIPS_SP_REGNUM = 29, |
9c46b6f0 | 69 | MIPS_RA_REGNUM = 31, |
24e05951 | 70 | MIPS_PS_REGNUM = 32, /* Contains processor status. */ |
56cea623 AC |
71 | MIPS_EMBED_LO_REGNUM = 33, |
72 | MIPS_EMBED_HI_REGNUM = 34, | |
73 | MIPS_EMBED_BADVADDR_REGNUM = 35, | |
74 | MIPS_EMBED_CAUSE_REGNUM = 36, | |
75 | MIPS_EMBED_PC_REGNUM = 37, | |
613e114f | 76 | MIPS_EMBED_FP0_REGNUM = 38, |
607fc93c AC |
77 | MIPS_UNUSED_REGNUM = 73, /* Never used, FIXME */ |
78 | MIPS_FIRST_EMBED_REGNUM = 74, /* First CP0 register for embedded use. */ | |
a5c9623c | 79 | MIPS_PRID_REGNUM = 89, /* Processor ID. */ |
607fc93c | 80 | MIPS_LAST_EMBED_REGNUM = 89 /* Last one. */ |
56cea623 AC |
81 | }; |
82 | ||
691c0433 AC |
83 | /* Defined in mips-tdep.c and used in remote-mips.c */ |
84 | extern void deprecated_mips_set_processor_regs_hack (void); | |
85 | ||
95ac2dcf AC |
86 | /* Instruction sizes and other useful constants. */ |
87 | enum | |
9c46b6f0 | 88 | { |
95ac2dcf AC |
89 | MIPS_INSN16_SIZE = 2, |
90 | MIPS_INSN32_SIZE = 4, | |
91 | /* The number of floating-point or integer registers. */ | |
92 | MIPS_NUMREGS = 32 | |
9c46b6f0 MK |
93 | }; |
94 | ||
0d0266c6 | 95 | /* Single step based on where the current instruction will take us. */ |
0b1b3e42 | 96 | extern int mips_software_single_step (struct frame_info *frame); |
691c0433 | 97 | |
0fe7e7c8 AC |
98 | /* Tell if the program counter value in MEMADDR is in a MIPS16 |
99 | function. */ | |
100 | extern int mips_pc_is_mips16 (bfd_vma memaddr); | |
101 | ||
e6bc2e8a AC |
102 | /* Return the currently configured (or set) saved register size. */ |
103 | extern unsigned int mips_abi_regsize (struct gdbarch *gdbarch); | |
104 | ||
4eb0ad19 DJ |
105 | /* Target descriptions which only indicate the size of general |
106 | registers. */ | |
107 | extern struct target_desc *mips_tdesc_gp32; | |
108 | extern struct target_desc *mips_tdesc_gp64; | |
109 | ||
d1973055 | 110 | #endif /* MIPS_TDEP_H */ |