[deliverable/binutils-gdb.git] / gdb / ppc-tdep.h

/* Target-dependent code for GDB, the GNU debugger.

   Copyright 2000, 2001, 2002, 2003, 2004 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 2 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, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#ifndef PPC_TDEP_H
#define PPC_TDEP_H

struct gdbarch;
struct frame_info;
struct value;
struct regcache;
struct type;

/* From ppc-linux-tdep.c... */
enum return_value_convention ppc_sysv_abi_return_value (struct gdbarch *gdbarch,
							struct type *valtype,
							struct regcache *regcache,
							void *readbuf,
							const void *writebuf);
enum return_value_convention ppc_sysv_abi_broken_return_value (struct gdbarch *gdbarch,
							       struct type *valtype,
							       struct regcache *regcache,
							       void *readbuf,
							       const void *writebuf);
CORE_ADDR ppc_sysv_abi_push_dummy_call (struct gdbarch *gdbarch,
					struct value *function,
					struct regcache *regcache,
					CORE_ADDR bp_addr, int nargs,
					struct value **args, CORE_ADDR sp,
					int struct_return,
					CORE_ADDR struct_addr);
CORE_ADDR ppc64_sysv_abi_push_dummy_call (struct gdbarch *gdbarch,
					  struct value *function,
					  struct regcache *regcache,
					  CORE_ADDR bp_addr, int nargs,
					  struct value **args, CORE_ADDR sp,
					  int struct_return,
					  CORE_ADDR struct_addr);
CORE_ADDR ppc64_sysv_abi_adjust_breakpoint_address (struct gdbarch *gdbarch,
						    CORE_ADDR bpaddr);
int ppc_linux_memory_remove_breakpoint (CORE_ADDR addr, char *contents_cache);
struct link_map_offsets *ppc_linux_svr4_fetch_link_map_offsets (void);
void ppc_linux_supply_gregset (struct regcache *regcache,
			       int regnum, const void *gregs, size_t size,
			       int wordsize);
void ppc_linux_supply_fpregset (const struct regset *regset,
				struct regcache *regcache,
				int regnum, const void *gregs, size_t size);

enum return_value_convention ppc64_sysv_abi_return_value (struct gdbarch *gdbarch,
							  struct type *valtype,
							  struct regcache *regcache,
							  void *readbuf,
							  const void *writebuf);

/* From rs6000-tdep.c... */
int altivec_register_p (int regno);
int spe_register_p (int regno);

/* Return non-zero if the architecture described by GDBARCH has
   floating-point registers (f0 --- f31 and fpscr).  */
int ppc_floating_point_unit_p (struct gdbarch *gdbarch);

/* Register set description.  */

struct ppc_reg_offsets
{
  /* General-purpose registers.  */
  int r0_offset;
  int pc_offset;
  int ps_offset;
  int cr_offset;
  int lr_offset;
  int ctr_offset;
  int xer_offset;
  int mq_offset;

  /* Floating-point registers.  */
  int f0_offset;
  int fpscr_offset;

  /* AltiVec registers.  */
  int vr0_offset;
  int vscr_offset;
  int vrsave_offset;
};

/* Supply register REGNUM in the general-purpose register set REGSET
   from the buffer specified by GREGS and LEN to register cache
   REGCACHE.  If REGNUM is -1, do this for all registers in REGSET.  */

extern void ppc_supply_gregset (const struct regset *regset,
				struct regcache *regcache,
				int regnum, const void *gregs, size_t len);

/* Supply register REGNUM in the floating-point register set REGSET
   from the buffer specified by FPREGS and LEN to register cache
   REGCACHE.  If REGNUM is -1, do this for all registers in REGSET.  */

extern void ppc_supply_fpregset (const struct regset *regset,
				 struct regcache *regcache,
				 int regnum, const void *fpregs, size_t len);

/* Collect register REGNUM in the general-purpose register set
   REGSET. from register cache REGCACHE into the buffer specified by
   GREGS and LEN.  If REGNUM is -1, do this for all registers in
   REGSET.  */

extern void ppc_collect_gregset (const struct regset *regset,
				 const struct regcache *regcache,
				 int regnum, void *gregs, size_t len);

/* Collect register REGNUM in the floating-point register set
   REGSET. from register cache REGCACHE into the buffer specified by
   FPREGS and LEN.  If REGNUM is -1, do this for all registers in
   REGSET.  */

extern void ppc_collect_fpregset (const struct regset *regset,
				  const struct regcache *regcache,
				  int regnum, void *fpregs, size_t len);

/* Private data that this module attaches to struct gdbarch. */

struct gdbarch_tdep
  {
    int wordsize;              /* size in bytes of fixed-point word */
    const struct reg *regs;    /* from current variant */
    int ppc_gp0_regnum;		/* GPR register 0 */
    int ppc_gprs_pseudo_p;      /* non-zero if GPRs are pseudo-registers */
    int ppc_toc_regnum;		/* TOC register */
    int ppc_ps_regnum;	        /* Processor (or machine) status (%msr) */
    int ppc_cr_regnum;		/* Condition register */
    int ppc_lr_regnum;		/* Link register */
    int ppc_ctr_regnum;		/* Count register */
    int ppc_xer_regnum;		/* Integer exception register */

    /* On PPC and RS6000 variants that have no floating-point
       registers, the next two members will be -1.  */
    int ppc_fp0_regnum;         /* floating-point register 0 */
    int ppc_fpscr_regnum;	/* Floating point status and condition
    				   register */

    int ppc_mq_regnum;		/* Multiply/Divide extension register */
    int ppc_vr0_regnum;		/* First AltiVec register */
    int ppc_vrsave_regnum;	/* Last AltiVec register */
    int ppc_ev0_regnum;         /* First ev register */
    int ppc_ev31_regnum;        /* Last ev register */
    int ppc_acc_regnum;         /* SPE 'acc' register */
    int ppc_spefscr_regnum;     /* SPE 'spefscr' register */
    int lr_frame_offset;	/* Offset to ABI specific location where
                                   link register is saved.  */
};


/* Constants for register set sizes.  */
enum
  {
    ppc_num_gprs = 32,          /* 32 general-purpose registers */
    ppc_num_fprs = 32           /* 32 floating-point registers */
  };

#endif
Commit	Line	Data
9aa1e687	1	/* Target-dependent code for GDB, the GNU debugger.
f9be684a AC	2
	3	Copyright 2000, 2001, 2002, 2003, 2004 Free Software Foundation,
	4	Inc.
9aa1e687 KB	5
	6	This file is part of GDB.
	7
	8	This program is free software; you can redistribute it and/or modify
	9	it under the terms of the GNU General Public License as published by
	10	the Free Software Foundation; either version 2 of the License, or
	11	(at your option) any later version.
	12
	13	This program is distributed in the hope that it will be useful,
	14	but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	GNU General Public License for more details.
	17
	18	You should have received a copy of the GNU General Public License
	19	along with this program; if not, write to the Free Software
	20	Foundation, Inc., 59 Temple Place - Suite 330,
	21	Boston, MA 02111-1307, USA. */
	22
3a1c5313 AC	23	#ifndef PPC_TDEP_H
	24	#define PPC_TDEP_H
	25
da3331ec	26	struct gdbarch;
3a1c5313 AC	27	struct frame_info;
3a1c5313 AC	28	struct value;
4a4b3fed	29	struct regcache;
221c12ff	30	struct type;
3a1c5313	31
9aa1e687	32	/* From ppc-linux-tdep.c... */
05580c65 AC	33	enum return_value_convention ppc_sysv_abi_return_value (struct gdbarch *gdbarch,
	34	struct type *valtype,
	35	struct regcache *regcache,
963e2bb7 AC	36	void *readbuf,
963e2bb7 AC	37	const void *writebuf);
05580c65 AC	38	enum return_value_convention ppc_sysv_abi_broken_return_value (struct gdbarch *gdbarch,
	39	struct type *valtype,
	40	struct regcache *regcache,
963e2bb7 AC	41	void *readbuf,
963e2bb7 AC	42	const void *writebuf);
77b2b6d4	43	CORE_ADDR ppc_sysv_abi_push_dummy_call (struct gdbarch *gdbarch,
7d9b040b	44	struct value *function,
77b2b6d4 AC	45	struct regcache *regcache,
	46	CORE_ADDR bp_addr, int nargs,
	47	struct value **args, CORE_ADDR sp,
	48	int struct_return,
	49	CORE_ADDR struct_addr);
8be9034a	50	CORE_ADDR ppc64_sysv_abi_push_dummy_call (struct gdbarch *gdbarch,
7d9b040b	51	struct value *function,
8be9034a AC	52	struct regcache *regcache,
	53	CORE_ADDR bp_addr, int nargs,
	54	struct value **args, CORE_ADDR sp,
	55	int struct_return,
	56	CORE_ADDR struct_addr);
6066c3de AC	57	CORE_ADDR ppc64_sysv_abi_adjust_breakpoint_address (struct gdbarch *gdbarch,
6066c3de AC	58	CORE_ADDR bpaddr);
9aa1e687	59	int ppc_linux_memory_remove_breakpoint (CORE_ADDR addr, char *contents_cache);
6ded7999	60	struct link_map_offsets *ppc_linux_svr4_fetch_link_map_offsets (void);
f9be684a AC	61	void ppc_linux_supply_gregset (struct regcache *regcache,
	62	int regnum, const void *gregs, size_t size,
	63	int wordsize);
	64	void ppc_linux_supply_fpregset (const struct regset *regset,
	65	struct regcache *regcache,
	66	int regnum, const void *gregs, size_t size);
9aa1e687	67
05580c65 AC	68	enum return_value_convention ppc64_sysv_abi_return_value (struct gdbarch *gdbarch,
	69	struct type *valtype,
	70	struct regcache *regcache,
963e2bb7 AC	71	void *readbuf,
963e2bb7 AC	72	const void *writebuf);
9aa1e687 KB	73
9aa1e687 KB	74	/* From rs6000-tdep.c... */
1fcc0bb8	75	int altivec_register_p (int regno);
867e2dc5	76	int spe_register_p (int regno);
9aa1e687	77
383f0f5b JB	78	/* Return non-zero if the architecture described by GDBARCH has
383f0f5b JB	79	floating-point registers (f0 --- f31 and fpscr). */
0a613259 AC	80	int ppc_floating_point_unit_p (struct gdbarch *gdbarch);
0a613259 AC	81
d195bc9f MK	82	/* Register set description. */
	83
	84	struct ppc_reg_offsets
	85	{
	86	/* General-purpose registers. */
	87	int r0_offset;
	88	int pc_offset;
	89	int ps_offset;
	90	int cr_offset;
	91	int lr_offset;
	92	int ctr_offset;
	93	int xer_offset;
	94	int mq_offset;
	95
	96	/* Floating-point registers. */
	97	int f0_offset;
	98	int fpscr_offset;
	99
	100	/* AltiVec registers. */
	101	int vr0_offset;
	102	int vscr_offset;
	103	int vrsave_offset;
	104	};
	105
	106	/* Supply register REGNUM in the general-purpose register set REGSET
	107	from the buffer specified by GREGS and LEN to register cache
	108	REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
	109
	110	extern void ppc_supply_gregset (const struct regset *regset,
	111	struct regcache *regcache,
	112	int regnum, const void *gregs, size_t len);
	113
	114	/* Supply register REGNUM in the floating-point register set REGSET
	115	from the buffer specified by FPREGS and LEN to register cache
	116	REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
	117
	118	extern void ppc_supply_fpregset (const struct regset *regset,
	119	struct regcache *regcache,
	120	int regnum, const void *fpregs, size_t len);
	121
	122	/* Collect register REGNUM in the general-purpose register set
	123	REGSET. from register cache REGCACHE into the buffer specified by
	124	GREGS and LEN. If REGNUM is -1, do this for all registers in
	125	REGSET. */
	126
	127	extern void ppc_collect_gregset (const struct regset *regset,
	128	const struct regcache *regcache,
	129	int regnum, void *gregs, size_t len);
	130
	131	/* Collect register REGNUM in the floating-point register set
	132	REGSET. from register cache REGCACHE into the buffer specified by
	133	FPREGS and LEN. If REGNUM is -1, do this for all registers in
	134	REGSET. */
	135
	136	extern void ppc_collect_fpregset (const struct regset *regset,
	137	const struct regcache *regcache,
	138	int regnum, void *fpregs, size_t len);
	139
2188cbdd EZ	140	/* Private data that this module attaches to struct gdbarch. */
	141
	142	struct gdbarch_tdep
	143	{
	144	int wordsize; /* size in bytes of fixed-point word */
2188cbdd EZ	145	const struct reg regs; / from current variant */
2188cbdd EZ	146	int ppc_gp0_regnum; /* GPR register 0 */
01904826	147	int ppc_gprs_pseudo_p; /* non-zero if GPRs are pseudo-registers */
2188cbdd EZ	148	int ppc_toc_regnum; /* TOC register */
	149	int ppc_ps_regnum; /* Processor (or machine) status (%msr) */
	150	int ppc_cr_regnum; /* Condition register */
	151	int ppc_lr_regnum; /* Link register */
	152	int ppc_ctr_regnum; /* Count register */
	153	int ppc_xer_regnum; /* Integer exception register */
383f0f5b JB	154
	155	/* On PPC and RS6000 variants that have no floating-point
	156	registers, the next two members will be -1. */
366f009f	157	int ppc_fp0_regnum; /* floating-point register 0 */
e3f36dbd KB	158	int ppc_fpscr_regnum; /* Floating point status and condition
e3f36dbd KB	159	register */
383f0f5b	160
2188cbdd	161	int ppc_mq_regnum; /* Multiply/Divide extension register */
1fcc0bb8 EZ	162	int ppc_vr0_regnum; /* First AltiVec register */
1fcc0bb8 EZ	163	int ppc_vrsave_regnum; /* Last AltiVec register */
c8001721 EZ	164	int ppc_ev0_regnum; /* First ev register */
c8001721 EZ	165	int ppc_ev31_regnum; /* Last ev register */
867e2dc5 JB	166	int ppc_acc_regnum; /* SPE 'acc' register */
867e2dc5 JB	167	int ppc_spefscr_regnum; /* SPE 'spefscr' register */
a88376a3 KB	168	int lr_frame_offset; /* Offset to ABI specific location where
a88376a3 KB	169	link register is saved. */
2188cbdd	170	};
3a1c5313	171
b967e06f JB	172
	173	/* Constants for register set sizes. */
	174	enum
	175	{
8bf659e8	176	ppc_num_gprs = 32, /* 32 general-purpose registers */
b967e06f JB	177	ppc_num_fprs = 32 /* 32 floating-point registers */
	178	};
	179
3a1c5313	180	#endif