1 /* Target-dependent code for GNU/Linux on MIPS processors.
3 Copyright 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
5 This file is part of GDB.
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.
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.
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/>. */
20 /* Copied from <asm/elf.h>. */
24 typedef unsigned char mips_elf_greg_t[4];
25 typedef mips_elf_greg_t mips_elf_gregset_t[ELF_NGREG];
27 typedef unsigned char mips_elf_fpreg_t[8];
28 typedef mips_elf_fpreg_t mips_elf_fpregset_t[ELF_NFPREG];
30 /* 0 - 31 are integer registers, 32 - 63 are fp registers. */
45 #define EF_CP0_BADVADDR 41
46 #define EF_CP0_STATUS 42
47 #define EF_CP0_CAUSE 43
51 void mips_supply_gregset (struct regcache *, const mips_elf_gregset_t *);
52 void mips_fill_gregset (const struct regcache *, mips_elf_gregset_t *, int);
53 void mips_supply_fpregset (struct regcache *, const mips_elf_fpregset_t *);
54 void mips_fill_fpregset (const struct regcache *, mips_elf_fpregset_t *, int);
58 /* Copied from <asm/elf.h>. */
59 #define MIPS64_ELF_NGREG 45
60 #define MIPS64_ELF_NFPREG 33
62 typedef unsigned char mips64_elf_greg_t[8];
63 typedef mips64_elf_greg_t mips64_elf_gregset_t[MIPS64_ELF_NGREG];
65 typedef unsigned char mips64_elf_fpreg_t[8];
66 typedef mips64_elf_fpreg_t mips64_elf_fpregset_t[MIPS64_ELF_NFPREG];
68 /* 0 - 31 are integer registers, 32 - 63 are fp registers. */
69 #define MIPS64_FPR_BASE 32
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
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
87 #define MIPS64_EF_SIZE 304
89 void mips64_supply_gregset (struct regcache *, const mips64_elf_gregset_t *);
90 void mips64_fill_gregset (const struct regcache *, mips64_elf_gregset_t *, int);
91 void mips64_supply_fpregset (struct regcache *, const mips64_elf_fpregset_t *);
92 void mips64_fill_fpregset (const struct regcache *, mips64_elf_fpregset_t *, int);
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
100 /* Return 1 if MIPS_RESTART_REGNUM is usable. */
102 int mips_linux_restart_reg_p (struct gdbarch *gdbarch);