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