1/* Target-dependent code for GNU/Linux on MIPS processors.
2
3   Copyright 2006, 2007 Free Software Foundation, Inc.
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
9   the Free Software Foundation; either version 3 of the License, or
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
18   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
19
20/* Copied from <asm/elf.h>.  */
21#define ELF_NGREG       45
22#define ELF_NFPREG      33
23
24typedef unsigned char mips_elf_greg_t[4];
25typedef mips_elf_greg_t mips_elf_gregset_t[ELF_NGREG];
26
27typedef unsigned char mips_elf_fpreg_t[8];
28typedef mips_elf_fpreg_t mips_elf_fpregset_t[ELF_NFPREG];
29
30/* 0 - 31 are integer registers, 32 - 63 are fp registers.  */
31#define FPR_BASE        32
32#define PC              64
33#define CAUSE           65
34#define BADVADDR        66
35#define MMHI            67
36#define MMLO            68
37#define FPC_CSR         69
38#define FPC_EIR         70
39
40#define EF_REG0			6
41#define EF_REG31		37
42#define EF_LO			38
43#define EF_HI			39
44#define EF_CP0_EPC		40
45#define EF_CP0_BADVADDR		41
46#define EF_CP0_STATUS		42
47#define EF_CP0_CAUSE		43
48
49#define EF_SIZE			180
50
51void mips_supply_gregset (struct regcache *, const mips_elf_gregset_t *);
52void mips_fill_gregset (const struct regcache *, mips_elf_gregset_t *, int);
53void mips_supply_fpregset (struct regcache *, const mips_elf_fpregset_t *);
54void mips_fill_fpregset (const struct regcache *, mips_elf_fpregset_t *, int);
55
56/* 64-bit support.  */
57
58/* Copied from <asm/elf.h>.  */
59#define MIPS64_ELF_NGREG       45
60#define MIPS64_ELF_NFPREG      33
61
62typedef unsigned char mips64_elf_greg_t[8];
63typedef mips64_elf_greg_t mips64_elf_gregset_t[MIPS64_ELF_NGREG];
64
65typedef unsigned char mips64_elf_fpreg_t[8];
66typedef mips64_elf_fpreg_t mips64_elf_fpregset_t[MIPS64_ELF_NFPREG];
67
68/* 0 - 31 are integer registers, 32 - 63 are fp registers.  */
69#define MIPS64_FPR_BASE                 32
70#define MIPS64_PC                       64
71#define MIPS64_CAUSE                    65
72#define MIPS64_BADVADDR                 66
73#define MIPS64_MMHI                     67
74#define MIPS64_MMLO                     68
75#define MIPS64_FPC_CSR                  69
76#define MIPS64_FPC_EIR                  70
77
78#define MIPS64_EF_REG0			 0
79#define MIPS64_EF_REG31			31
80#define MIPS64_EF_LO			32
81#define MIPS64_EF_HI			33
82#define MIPS64_EF_CP0_EPC		34
83#define MIPS64_EF_CP0_BADVADDR		35
84#define MIPS64_EF_CP0_STATUS		36
85#define MIPS64_EF_CP0_CAUSE		37
86
87#define MIPS64_EF_SIZE			304
88
89void mips64_supply_gregset (struct regcache *, const mips64_elf_gregset_t *);
90void mips64_fill_gregset (const struct regcache *, mips64_elf_gregset_t *, int);
91void mips64_supply_fpregset (struct regcache *, const mips64_elf_fpregset_t *);
92void mips64_fill_fpregset (const struct regcache *, mips64_elf_fpregset_t *, int);
93
94enum {
95  /* The Linux kernel stores an error code from any interrupted
96     syscall in a "register" (in $0's save slot).  */
97  MIPS_RESTART_REGNUM = MIPS_LAST_EMBED_REGNUM + 1
98};
99
100/* Return 1 if MIPS_RESTART_REGNUM is usable.  */
101
102int mips_linux_restart_reg_p (struct gdbarch *gdbarch);
103