1 /* Target-dependent code for GNU/Linux on MIPS processors. 2 3 Copyright 2006, 2007, 2008, 2009, 2010, 2011 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 24 typedef unsigned char mips_elf_greg_t[4]; 25 typedef mips_elf_greg_t mips_elf_gregset_t[ELF_NGREG]; 26 27 typedef unsigned char mips_elf_fpreg_t[8]; 28 typedef 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 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); 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 62 typedef unsigned char mips64_elf_greg_t[8]; 63 typedef mips64_elf_greg_t mips64_elf_gregset_t[MIPS64_ELF_NGREG]; 64 65 typedef unsigned char mips64_elf_fpreg_t[8]; 66 typedef 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 89 void mips64_supply_gregset (struct regcache *, const mips64_elf_gregset_t *); 90 void mips64_fill_gregset (const struct regcache *, 91 mips64_elf_gregset_t *, int); 92 void mips64_supply_fpregset (struct regcache *, 93 const mips64_elf_fpregset_t *); 94 void mips64_fill_fpregset (const struct regcache *, 95 mips64_elf_fpregset_t *, int); 96 97 enum { 98 /* The Linux kernel stores an error code from any interrupted 99 syscall in a "register" (in $0's save slot). */ 100 MIPS_RESTART_REGNUM = MIPS_LAST_EMBED_REGNUM + 1 101 }; 102 103 /* Return 1 if MIPS_RESTART_REGNUM is usable. */ 104 105 int mips_linux_restart_reg_p (struct gdbarch *gdbarch); 106