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/* Target-dependent code for GNU/Linux on MIPS processors.
Copyright (C) 2006-2024 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef MIPS_LINUX_TDEP_H
#define MIPS_LINUX_TDEP_H
/* Copied from <asm/elf.h>. */
#define ELF_NGREG 45
#define ELF_NFPREG 33
typedef unsigned char mips_elf_greg_t[4];
typedef mips_elf_greg_t mips_elf_gregset_t[ELF_NGREG];
typedef unsigned char mips_elf_fpreg_t[8];
typedef mips_elf_fpreg_t mips_elf_fpregset_t[ELF_NFPREG];
/* 0 - 31 are integer registers, 32 - 63 are fp registers. */
#define FPR_BASE 32
#define PC 64
#define CAUSE 65
#define BADVADDR 66
#define MMHI 67
#define MMLO 68
#define FPC_CSR 69
#define FPC_EIR 70
#define DSP_BASE 71
#define DSP_CONTROL 77
#define EF_REG0 6
#define EF_REG31 37
#define EF_LO 38
#define EF_HI 39
#define EF_CP0_EPC 40
#define EF_CP0_BADVADDR 41
#define EF_CP0_STATUS 42
#define EF_CP0_CAUSE 43
#define EF_SIZE 180
void mips_supply_gregset (struct regcache *, const mips_elf_gregset_t *);
void mips_fill_gregset (const struct regcache *, mips_elf_gregset_t *, int);
/* 64-bit support. */
/* Copied from <asm/elf.h>. */
#define MIPS64_ELF_NGREG 45
#define MIPS64_ELF_NFPREG 33
typedef unsigned char mips64_elf_greg_t[8];
typedef mips64_elf_greg_t mips64_elf_gregset_t[MIPS64_ELF_NGREG];
typedef unsigned char mips64_elf_fpreg_t[8];
typedef mips64_elf_fpreg_t mips64_elf_fpregset_t[MIPS64_ELF_NFPREG];
/* 0 - 31 are integer registers, 32 - 63 are fp registers. */
#define MIPS64_FPR_BASE 32
#define MIPS64_PC 64
#define MIPS64_CAUSE 65
#define MIPS64_BADVADDR 66
#define MIPS64_MMHI 67
#define MIPS64_MMLO 68
#define MIPS64_FPC_CSR 69
#define MIPS64_FPC_EIR 70
#define MIPS64_EF_REG0 0
#define MIPS64_EF_REG31 31
#define MIPS64_EF_LO 32
#define MIPS64_EF_HI 33
#define MIPS64_EF_CP0_EPC 34
#define MIPS64_EF_CP0_BADVADDR 35
#define MIPS64_EF_CP0_STATUS 36
#define MIPS64_EF_CP0_CAUSE 37
#define MIPS64_EF_SIZE 304
void mips64_supply_gregset (struct regcache *, const mips64_elf_gregset_t *);
void mips64_fill_gregset (const struct regcache *,
mips64_elf_gregset_t *, int);
void mips64_supply_fpregset (struct regcache *,
const mips64_elf_fpregset_t *);
void mips64_fill_fpregset (const struct regcache *,
mips64_elf_fpregset_t *, int);
enum {
/* The Linux kernel stores an error code from any interrupted
syscall in a "register" (in $0's save slot). */
MIPS_RESTART_REGNUM = 79
};
/* Return 1 if MIPS_RESTART_REGNUM is usable. */
int mips_linux_restart_reg_p (struct gdbarch *gdbarch);
/* Target descriptions. */
extern const struct target_desc *tdesc_mips_linux;
extern const struct target_desc *tdesc_mips64_linux;
extern const struct target_desc *tdesc_mips_dsp_linux;
extern const struct target_desc *tdesc_mips64_dsp_linux;
#endif /* MIPS_LINUX_TDEP_H */
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