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

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

   Copyright 2006-2012 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/>.  */

/* 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);
void mips_supply_fpregset (struct regcache *, const mips_elf_fpregset_t *);
void mips_fill_fpregset (const struct regcache *, mips_elf_fpregset_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);

/* MIPS Signals -- adapted from linux/arch/mips/include/asm/signal.h.  */

enum mips_signals 
  {
    MIPS_SIGHUP    =  1,	/* Hangup (POSIX).  */
    MIPS_SIGINT    =  2,	/* Interrupt (ANSI).  */
    MIPS_SIGQUIT   =  3,	/* Quit (POSIX).  */
    MIPS_SIGILL    =  4,	/* Illegal instruction (ANSI).  */
    MIPS_SIGTRAP   =  5,	/* Trace trap (POSIX).  */
    MIPS_SIGIOT    =  6,	/* IOT trap (4.2 BSD).  */
    MIPS_SIGABRT   =  MIPS_SIGIOT, /* Abort (ANSI).  */
    MIPS_SIGEMT    =  7,
    MIPS_SIGFPE    =  8,	/* Floating-point exception (ANSI).  */
    MIPS_SIGKILL   =  9,	/* Kill, unblockable (POSIX).  */
    MIPS_SIGBUS    = 10,	/* BUS error (4.2 BSD).  */
    MIPS_SIGSEGV   = 11,	/* Segmentation violation (ANSI).  */
    MIPS_SIGSYS    = 12,
    MIPS_SIGPIPE   = 13,	/* Broken pipe (POSIX).  */
    MIPS_SIGALRM   = 14,	/* Alarm clock (POSIX).  */
    MIPS_SIGTERM   = 15,	/* Termination (ANSI).  */
    MIPS_SIGUSR1   = 16,	/* User-defined signal 1 (POSIX).  */
    MIPS_SIGUSR2   = 17,	/* User-defined signal 2 (POSIX).  */
    MIPS_SIGCHLD   = 18,	/* Child status has changed (POSIX).  */
    MIPS_SIGCLD    = MIPS_SIGCHLD, /* Same as SIGCHLD (System V).  */
    MIPS_SIGPWR    = 19,	/* Power failure restart (System V).  */
    MIPS_SIGWINCH  = 20,	/* Window size change (4.3 BSD, Sun).  */
    MIPS_SIGURG    = 21,	/* Urgent condition on socket (4.2 BSD).  */
    MIPS_SIGIO     = 22,	/* I/O now possible (4.2 BSD).  */
    MIPS_SIGPOLL   = MIPS_SIGIO, /* Pollable event occurred (System V).  */
    MIPS_SIGSTOP   = 23,	/* Stop, unblockable (POSIX).  */
    MIPS_SIGTSTP   = 24,	/* Keyboard stop (POSIX).  */
    MIPS_SIGCONT   = 25,	/* Continue (POSIX).  */
    MIPS_SIGTTIN   = 26,	/* Background read from tty (POSIX).  */
    MIPS_SIGTTOU   = 27,	/* Background write to tty (POSIX).  */
    MIPS_SIGVTALRM = 28,	/* Virtual alarm clock (4.2 BSD).  */
    MIPS_SIGPROF   = 29,	/* Profiling alarm clock (4.2 BSD).  */
    MIPS_SIGXCPU   = 30,	/* CPU limit exceeded (4.2 BSD).  */
    MIPS_SIGXFSZ   = 31,	/* File size limit exceeded (4.2 BSD).  */
    MIPS_SIGRTMIN  = 32,	/* Minimum RT signal.  */
    MIPS_SIGRTMAX  = 128 - 1	/* Maximum RT signal.  */
  };
Commit	Line	Data
d37eb719 DJ	1	/* Target-dependent code for GNU/Linux on MIPS processors.
d37eb719 DJ	2
0b302171	3	Copyright 2006-2012 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 DJ	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. */
dc29a156 MR	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
1faeff08 MR	39	#define DSP_BASE 71
1faeff08 MR	40	#define DSP_CONTROL 77
d37eb719 DJ	41
	42	#define EF_REG0 6
	43	#define EF_REG31 37
	44	#define EF_LO 38
	45	#define EF_HI 39
	46	#define EF_CP0_EPC 40
	47	#define EF_CP0_BADVADDR 41
	48	#define EF_CP0_STATUS 42
	49	#define EF_CP0_CAUSE 43
	50
	51	#define EF_SIZE 180
	52
28f5035f UW	53	void mips_supply_gregset (struct regcache , const mips_elf_gregset_t );
	54	void mips_fill_gregset (const struct regcache , mips_elf_gregset_t , int);
	55	void mips_supply_fpregset (struct regcache , const mips_elf_fpregset_t );
	56	void mips_fill_fpregset (const struct regcache , mips_elf_fpregset_t , int);
d37eb719 DJ	57
	58	/* 64-bit support. */
	59
	60	/* Copied from <asm/elf.h>. */
	61	#define MIPS64_ELF_NGREG 45
	62	#define MIPS64_ELF_NFPREG 33
	63
	64	typedef unsigned char mips64_elf_greg_t[8];
	65	typedef mips64_elf_greg_t mips64_elf_gregset_t[MIPS64_ELF_NGREG];
	66
	67	typedef unsigned char mips64_elf_fpreg_t[8];
	68	typedef mips64_elf_fpreg_t mips64_elf_fpregset_t[MIPS64_ELF_NFPREG];
	69
	70	/* 0 - 31 are integer registers, 32 - 63 are fp registers. */
	71	#define MIPS64_FPR_BASE 32
	72	#define MIPS64_PC 64
	73	#define MIPS64_CAUSE 65
	74	#define MIPS64_BADVADDR 66
	75	#define MIPS64_MMHI 67
	76	#define MIPS64_MMLO 68
	77	#define MIPS64_FPC_CSR 69
	78	#define MIPS64_FPC_EIR 70
	79
	80	#define MIPS64_EF_REG0 0
	81	#define MIPS64_EF_REG31 31
	82	#define MIPS64_EF_LO 32
	83	#define MIPS64_EF_HI 33
	84	#define MIPS64_EF_CP0_EPC 34
	85	#define MIPS64_EF_CP0_BADVADDR 35
	86	#define MIPS64_EF_CP0_STATUS 36
	87	#define MIPS64_EF_CP0_CAUSE 37
	88
	89	#define MIPS64_EF_SIZE 304
	90
28f5035f	91	void mips64_supply_gregset (struct regcache , const mips64_elf_gregset_t );
025bb325 MS	92	void mips64_fill_gregset (const struct regcache *,
	93	mips64_elf_gregset_t *, int);
	94	void mips64_supply_fpregset (struct regcache *,
	95	const mips64_elf_fpregset_t *);
	96	void mips64_fill_fpregset (const struct regcache *,
	97	mips64_elf_fpregset_t *, int);
822b6570 DJ	98
	99	enum {
	100	/* The Linux kernel stores an error code from any interrupted
	101	syscall in a "register" (in $0's save slot). */
1faeff08	102	MIPS_RESTART_REGNUM = 79
822b6570 DJ	103	};
	104
	105	/* Return 1 if MIPS_RESTART_REGNUM is usable. */
	106
	107	int mips_linux_restart_reg_p (struct gdbarch *gdbarch);
232b8704 ME	108
	109	/* MIPS Signals -- adapted from linux/arch/mips/include/asm/signal.h. */
	110
	111	enum mips_signals
	112	{
	113	MIPS_SIGHUP = 1, /* Hangup (POSIX). */
	114	MIPS_SIGINT = 2, /* Interrupt (ANSI). */
	115	MIPS_SIGQUIT = 3, /* Quit (POSIX). */
	116	MIPS_SIGILL = 4, /* Illegal instruction (ANSI). */
	117	MIPS_SIGTRAP = 5, /* Trace trap (POSIX). */
	118	MIPS_SIGIOT = 6, /* IOT trap (4.2 BSD). */
	119	MIPS_SIGABRT = MIPS_SIGIOT, /* Abort (ANSI). */
	120	MIPS_SIGEMT = 7,
	121	MIPS_SIGFPE = 8, /* Floating-point exception (ANSI). */
	122	MIPS_SIGKILL = 9, /* Kill, unblockable (POSIX). */
	123	MIPS_SIGBUS = 10, /* BUS error (4.2 BSD). */
	124	MIPS_SIGSEGV = 11, /* Segmentation violation (ANSI). */
	125	MIPS_SIGSYS = 12,
	126	MIPS_SIGPIPE = 13, /* Broken pipe (POSIX). */
	127	MIPS_SIGALRM = 14, /* Alarm clock (POSIX). */
	128	MIPS_SIGTERM = 15, /* Termination (ANSI). */
	129	MIPS_SIGUSR1 = 16, /* User-defined signal 1 (POSIX). */
	130	MIPS_SIGUSR2 = 17, /* User-defined signal 2 (POSIX). */
	131	MIPS_SIGCHLD = 18, /* Child status has changed (POSIX). */
	132	MIPS_SIGCLD = MIPS_SIGCHLD, /* Same as SIGCHLD (System V). */
	133	MIPS_SIGPWR = 19, /* Power failure restart (System V). */
	134	MIPS_SIGWINCH = 20, /* Window size change (4.3 BSD, Sun). */
	135	MIPS_SIGURG = 21, /* Urgent condition on socket (4.2 BSD). */
	136	MIPS_SIGIO = 22, /* I/O now possible (4.2 BSD). */
	137	MIPS_SIGPOLL = MIPS_SIGIO, /* Pollable event occurred (System V). */
	138	MIPS_SIGSTOP = 23, /* Stop, unblockable (POSIX). */
	139	MIPS_SIGTSTP = 24, /* Keyboard stop (POSIX). */
	140	MIPS_SIGCONT = 25, /* Continue (POSIX). */
	141	MIPS_SIGTTIN = 26, /* Background read from tty (POSIX). */
	142	MIPS_SIGTTOU = 27, /* Background write to tty (POSIX). */
	143	MIPS_SIGVTALRM = 28, /* Virtual alarm clock (4.2 BSD). */
	144	MIPS_SIGPROF = 29, /* Profiling alarm clock (4.2 BSD). */
	145	MIPS_SIGXCPU = 30, /* CPU limit exceeded (4.2 BSD). */
	146	MIPS_SIGXFSZ = 31, /* File size limit exceeded (4.2 BSD). */
	147	MIPS_SIGRTMIN = 32, /* Minimum RT signal. */
	148	MIPS_SIGRTMAX = 128 - 1 /* Maximum RT signal. */
	149	};