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

/* 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 */
Commit	Line	Data
d37eb719 DJ	1	/* Target-dependent code for GNU/Linux on MIPS processors.
d37eb719 DJ	2
1d506c26	3	Copyright (C) 2006-2024 Free Software Foundation, Inc.
d37eb719 DJ	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
a9762ec7	9	the Free Software Foundation; either version 3 of the License, or
d37eb719 DJ	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
a9762ec7	18	along with this program. If not, see <http://www.gnu.org/licenses/>. */
d37eb719	19
1a5c2598 TT	20	#ifndef MIPS_LINUX_TDEP_H
	21	#define MIPS_LINUX_TDEP_H
	22
d37eb719 DJ	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. */
dc29a156 MR	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
1faeff08 MR	42	#define DSP_BASE 71
1faeff08 MR	43	#define DSP_CONTROL 77
d37eb719 DJ	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
28f5035f UW	56	void mips_supply_gregset (struct regcache , const mips_elf_gregset_t );
28f5035f UW	57	void mips_fill_gregset (const struct regcache , mips_elf_gregset_t , int);
d37eb719 DJ	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
28f5035f	92	void mips64_supply_gregset (struct regcache , const mips64_elf_gregset_t );
025bb325 MS	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);
822b6570 DJ	99
	100	enum {
	101	/* The Linux kernel stores an error code from any interrupted
	102	syscall in a "register" (in $0's save slot). */
1faeff08	103	MIPS_RESTART_REGNUM = 79
822b6570 DJ	104	};
	105
	106	/* Return 1 if MIPS_RESTART_REGNUM is usable. */
	107
	108	int mips_linux_restart_reg_p (struct gdbarch *gdbarch);
032bb6ea YQ	109
032bb6ea YQ	110	/* Target descriptions. */
ac9b8c67 KS	111	extern const struct target_desc *tdesc_mips_linux;
	112	extern const struct target_desc *tdesc_mips64_linux;
	113	extern const struct target_desc *tdesc_mips_dsp_linux;
	114	extern const struct target_desc *tdesc_mips64_dsp_linux;
1a5c2598 TT	115
1a5c2598 TT	116	#endif /* MIPS_LINUX_TDEP_H */