[deliverable/binutils-gdb.git] / gdb / mips-linux-tdep.h

/* Target-dependent code for GNU/Linux on MIPS processors.

   Copyright (C) 2006-2020 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 struct target_desc *tdesc_mips_linux;
extern struct target_desc *tdesc_mips64_linux;
extern struct target_desc *tdesc_mips_dsp_linux;
extern struct target_desc *tdesc_mips64_dsp_linux;

#endif /* MIPS_LINUX_TDEP_H */
Commit	Line	Data
	1	/* Target-dependent code for GNU/Linux on MIPS processors.
	2
	3	Copyright (C) 2006-2020 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	#ifndef MIPS_LINUX_TDEP_H
	21	#define MIPS_LINUX_TDEP_H
	22
	23	/* Copied from <asm/elf.h>. */
	24	#define ELF_NGREG 45
	25	#define ELF_NFPREG 33
	26
	27	typedef unsigned char mips_elf_greg_t[4];
	28	typedef mips_elf_greg_t mips_elf_gregset_t[ELF_NGREG];
	29
	30	typedef unsigned char mips_elf_fpreg_t[8];
	31	typedef mips_elf_fpreg_t mips_elf_fpregset_t[ELF_NFPREG];
	32
	33	/* 0 - 31 are integer registers, 32 - 63 are fp registers. */
	34	#define FPR_BASE 32
	35	#define PC 64
	36	#define CAUSE 65
	37	#define BADVADDR 66
	38	#define MMHI 67
	39	#define MMLO 68
	40	#define FPC_CSR 69
	41	#define FPC_EIR 70
	42	#define DSP_BASE 71
	43	#define DSP_CONTROL 77
	44
	45	#define EF_REG0 6
	46	#define EF_REG31 37
	47	#define EF_LO 38
	48	#define EF_HI 39
	49	#define EF_CP0_EPC 40
	50	#define EF_CP0_BADVADDR 41
	51	#define EF_CP0_STATUS 42
	52	#define EF_CP0_CAUSE 43
	53
	54	#define EF_SIZE 180
	55
	56	void mips_supply_gregset (struct regcache , const mips_elf_gregset_t );
	57	void mips_fill_gregset (const struct regcache , mips_elf_gregset_t , int);
	58
	59	/* 64-bit support. */
	60
	61	/* Copied from <asm/elf.h>. */
	62	#define MIPS64_ELF_NGREG 45
	63	#define MIPS64_ELF_NFPREG 33
	64
	65	typedef unsigned char mips64_elf_greg_t[8];
	66	typedef mips64_elf_greg_t mips64_elf_gregset_t[MIPS64_ELF_NGREG];
	67
	68	typedef unsigned char mips64_elf_fpreg_t[8];
	69	typedef mips64_elf_fpreg_t mips64_elf_fpregset_t[MIPS64_ELF_NFPREG];
	70
	71	/* 0 - 31 are integer registers, 32 - 63 are fp registers. */
	72	#define MIPS64_FPR_BASE 32
	73	#define MIPS64_PC 64
	74	#define MIPS64_CAUSE 65
	75	#define MIPS64_BADVADDR 66
	76	#define MIPS64_MMHI 67
	77	#define MIPS64_MMLO 68
	78	#define MIPS64_FPC_CSR 69
	79	#define MIPS64_FPC_EIR 70
	80
	81	#define MIPS64_EF_REG0 0
	82	#define MIPS64_EF_REG31 31
	83	#define MIPS64_EF_LO 32
	84	#define MIPS64_EF_HI 33
	85	#define MIPS64_EF_CP0_EPC 34
	86	#define MIPS64_EF_CP0_BADVADDR 35
	87	#define MIPS64_EF_CP0_STATUS 36
	88	#define MIPS64_EF_CP0_CAUSE 37
	89
	90	#define MIPS64_EF_SIZE 304
	91
	92	void mips64_supply_gregset (struct regcache , const mips64_elf_gregset_t );
	93	void mips64_fill_gregset (const struct regcache *,
	94	mips64_elf_gregset_t *, int);
	95	void mips64_supply_fpregset (struct regcache *,
	96	const mips64_elf_fpregset_t *);
	97	void mips64_fill_fpregset (const struct regcache *,
	98	mips64_elf_fpregset_t *, int);
	99
	100	enum {
	101	/* The Linux kernel stores an error code from any interrupted
	102	syscall in a "register" (in $0's save slot). */
	103	MIPS_RESTART_REGNUM = 79
	104	};
	105
	106	/* Return 1 if MIPS_RESTART_REGNUM is usable. */
	107
	108	int mips_linux_restart_reg_p (struct gdbarch *gdbarch);
	109
	110	/* Target descriptions. */
	111	extern struct target_desc *tdesc_mips_linux;
	112	extern struct target_desc *tdesc_mips64_linux;
	113	extern struct target_desc *tdesc_mips_dsp_linux;
	114	extern struct target_desc *tdesc_mips64_dsp_linux;
	115
	116	#endif /* MIPS_LINUX_TDEP_H */