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

/* Target-dependent code for SPARC.

   Copyright (C) 2003, 2004, 2006, 2007, 2008 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 SPARC_TDEP_H
#define SPARC_TDEP_H 1

struct frame_info;
struct gdbarch;
struct regcache;
struct regset;
struct trad_frame_saved_reg;

/* Register offsets for the general-purpose register set.  */

struct sparc_gregset
{
  int r_psr_offset;
  int r_pc_offset;
  int r_npc_offset;
  int r_y_offset;
  int r_wim_offset;
  int r_tbr_offset;
  int r_g1_offset;
  int r_l0_offset;
  int r_y_size;
};

/* SPARC architecture-specific information.  */

struct gdbarch_tdep
{
  /* Register numbers for the PN and nPC registers.  The definitions
     for (64-bit) UltraSPARC differ from the (32-bit) SPARC
     definitions.  */
  int pc_regnum;
  int npc_regnum;

  /* Register sets.  */
  struct regset *gregset;
  size_t sizeof_gregset;
  struct regset *fpregset;
  size_t sizeof_fpregset;

  /* Offset of saved PC in jmp_buf.  */
  int jb_pc_offset;

  /* Size of an Procedure Linkage Table (PLT) entry, 0 if we shouldn't
     treat the PLT special when doing prologue analysis.  */
  size_t plt_entry_size;

  /* Alternative location for trap return.  Used for single-stepping.  */
  CORE_ADDR (*step_trap) (struct frame_info *frame, unsigned long insn);
};

/* Register numbers of various important registers.  */

enum sparc_regnum
{
  SPARC_G0_REGNUM,		/* %g0 */
  SPARC_G1_REGNUM,
  SPARC_G2_REGNUM,
  SPARC_G3_REGNUM,
  SPARC_G4_REGNUM,
  SPARC_G5_REGNUM,
  SPARC_G6_REGNUM,
  SPARC_G7_REGNUM,		/* %g7 */
  SPARC_O0_REGNUM,		/* %o0 */
  SPARC_O1_REGNUM,
  SPARC_O2_REGNUM,
  SPARC_O3_REGNUM,
  SPARC_O4_REGNUM,
  SPARC_O5_REGNUM,
  SPARC_SP_REGNUM,		/* %sp (%o6) */
  SPARC_O7_REGNUM,		/* %o7 */
  SPARC_L0_REGNUM,		/* %l0 */
  SPARC_L1_REGNUM,
  SPARC_L2_REGNUM,
  SPARC_L3_REGNUM,
  SPARC_L4_REGNUM,
  SPARC_L5_REGNUM,
  SPARC_L6_REGNUM,
  SPARC_L7_REGNUM,		/* %l7 */
  SPARC_I0_REGNUM,		/* %i0 */
  SPARC_I1_REGNUM,
  SPARC_I2_REGNUM,
  SPARC_I3_REGNUM,
  SPARC_I4_REGNUM,
  SPARC_I5_REGNUM,
  SPARC_FP_REGNUM,		/* %fp (%i6) */
  SPARC_I7_REGNUM,		/* %i7 */
  SPARC_F0_REGNUM,		/* %f0 */
  SPARC_F1_REGNUM,
  SPARC_F31_REGNUM		/* %f31 */
  = SPARC_F0_REGNUM + 31
};

enum sparc32_regnum
{
  SPARC32_Y_REGNUM		/* %y */
  = SPARC_F31_REGNUM + 1,
  SPARC32_PSR_REGNUM,		/* %psr */
  SPARC32_WIM_REGNUM,		/* %wim */
  SPARC32_TBR_REGNUM,		/* %tbr */
  SPARC32_PC_REGNUM,		/* %pc */
  SPARC32_NPC_REGNUM,		/* %npc */
  SPARC32_FSR_REGNUM,		/* %fsr */
  SPARC32_CSR_REGNUM,		/* %csr */

  /* Pseudo registers.  */
  SPARC32_D0_REGNUM,		/* %d0 */
  SPARC32_D30_REGNUM		/* %d30 */
  = SPARC32_D0_REGNUM + 15
};
\f

struct sparc_frame_cache
{
  /* Base address.  */
  CORE_ADDR base;
  CORE_ADDR pc;

  /* Do we have a frame?  */
  int frameless_p;

  /* Do we have a Structure, Union or Quad-Precision return value?.  */
  int struct_return_p;

  /* Table of saved registers.  */
  struct trad_frame_saved_reg *saved_regs;
};

/* Fetch the instruction at PC.  */
extern unsigned long sparc_fetch_instruction (CORE_ADDR pc);

/* Fetch StackGhost Per-Process XOR cookie.  */
extern ULONGEST sparc_fetch_wcookie (void);

extern CORE_ADDR sparc_analyze_prologue (CORE_ADDR pc, CORE_ADDR current_pc,
					 struct sparc_frame_cache *cache);

extern struct sparc_frame_cache *
  sparc_frame_cache (struct frame_info *next_frame, void **this_cache);

extern struct sparc_frame_cache *
  sparc32_frame_cache (struct frame_info *next_frame, void **this_cache);

\f

extern int sparc_software_single_step (struct frame_info *frame);

extern void sparc_supply_rwindow (struct regcache *regcache,
				  CORE_ADDR sp, int regnum);
extern void sparc_collect_rwindow (const struct regcache *regcache,
				   CORE_ADDR sp, int regnum);

/* Register offsets for SunOS 4.  */
extern const struct sparc_gregset sparc32_sunos4_gregset;

extern void sparc32_supply_gregset (const struct sparc_gregset *gregset,
				    struct regcache *regcache,
				    int regnum, const void *gregs);
extern void sparc32_collect_gregset (const struct sparc_gregset *gregset,
				     const struct regcache *regcache,
				     int regnum, void *gregs);
extern void sparc32_supply_fpregset (struct regcache *regcache,
				     int regnum, const void *fpregs);
extern void sparc32_collect_fpregset (const struct regcache *regcache,
				      int regnum, void *fpregs);

/* Functions and variables exported from sparc-sol2-tdep.c.  */

/* Register offsets for Solaris 2.  */
extern const struct sparc_gregset sparc32_sol2_gregset;

extern int sparc_sol2_pc_in_sigtramp (CORE_ADDR pc, char *name);

extern char *sparc_sol2_static_transform_name (char *name);

extern void sparc32_sol2_init_abi (struct gdbarch_info info,
				   struct gdbarch *gdbarch);

/* Functions and variables exported from sparcnbsd-tdep.c.  */

/* Register offsets for NetBSD.  */
extern const struct sparc_gregset sparc32nbsd_gregset;

/* Return the address of a system call's alternative return
   address.  */
extern CORE_ADDR sparcnbsd_step_trap (struct frame_info *frame,
				      unsigned long insn);

extern void sparc32nbsd_elf_init_abi (struct gdbarch_info info,
				      struct gdbarch *gdbarch);

extern struct trad_frame_saved_reg *
  sparc32nbsd_sigcontext_saved_regs (struct frame_info *next_frame);

#endif /* sparc-tdep.h */
Commit	Line	Data
386c036b	1	/* Target-dependent code for SPARC.
c139e7d9	2
9b254dd1	3	Copyright (C) 2003, 2004, 2006, 2007, 2008 Free Software Foundation, Inc.
c139e7d9 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
c139e7d9 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/>. */
c139e7d9	19
386c036b MK	20	#ifndef SPARC_TDEP_H
	21	#define SPARC_TDEP_H 1
	22
566626fa	23	struct frame_info;
386c036b MK	24	struct gdbarch;
386c036b MK	25	struct regcache;
a54124c5	26	struct regset;
386c036b MK	27	struct trad_frame_saved_reg;
	28
	29	/* Register offsets for the general-purpose register set. */
	30
	31	struct sparc_gregset
	32	{
	33	int r_psr_offset;
	34	int r_pc_offset;
	35	int r_npc_offset;
	36	int r_y_offset;
	37	int r_wim_offset;
	38	int r_tbr_offset;
	39	int r_g1_offset;
	40	int r_l0_offset;
	41	int r_y_size;
	42	};
	43
	44	/* SPARC architecture-specific information. */
	45
	46	struct gdbarch_tdep
	47	{
	48	/* Register numbers for the PN and nPC registers. The definitions
	49	for (64-bit) UltraSPARC differ from the (32-bit) SPARC
	50	definitions. */
	51	int pc_regnum;
	52	int npc_regnum;
	53
a54124c5 MK	54	/* Register sets. */
	55	struct regset *gregset;
	56	size_t sizeof_gregset;
	57	struct regset *fpregset;
	58	size_t sizeof_fpregset;
	59
386c036b MK	60	/* Offset of saved PC in jmp_buf. */
	61	int jb_pc_offset;
	62
	63	/* Size of an Procedure Linkage Table (PLT) entry, 0 if we shouldn't
	64	treat the PLT special when doing prologue analysis. */
	65	size_t plt_entry_size;
c893be75 MK	66
c893be75 MK	67	/* Alternative location for trap return. Used for single-stepping. */
0b1b3e42	68	CORE_ADDR (step_trap) (struct frame_info frame, unsigned long insn);
386c036b MK	69	};
	70
	71	/* Register numbers of various important registers. */
	72
	73	enum sparc_regnum
	74	{
	75	SPARC_G0_REGNUM, /* %g0 */
	76	SPARC_G1_REGNUM,
	77	SPARC_G2_REGNUM,
	78	SPARC_G3_REGNUM,
	79	SPARC_G4_REGNUM,
	80	SPARC_G5_REGNUM,
	81	SPARC_G6_REGNUM,
	82	SPARC_G7_REGNUM, /* %g7 */
	83	SPARC_O0_REGNUM, /* %o0 */
	84	SPARC_O1_REGNUM,
	85	SPARC_O2_REGNUM,
	86	SPARC_O3_REGNUM,
	87	SPARC_O4_REGNUM,
	88	SPARC_O5_REGNUM,
	89	SPARC_SP_REGNUM, /* %sp (%o6) */
	90	SPARC_O7_REGNUM, /* %o7 */
	91	SPARC_L0_REGNUM, /* %l0 */
	92	SPARC_L1_REGNUM,
	93	SPARC_L2_REGNUM,
	94	SPARC_L3_REGNUM,
	95	SPARC_L4_REGNUM,
	96	SPARC_L5_REGNUM,
	97	SPARC_L6_REGNUM,
	98	SPARC_L7_REGNUM, /* %l7 */
	99	SPARC_I0_REGNUM, /* %i0 */
	100	SPARC_I1_REGNUM,
	101	SPARC_I2_REGNUM,
	102	SPARC_I3_REGNUM,
	103	SPARC_I4_REGNUM,
	104	SPARC_I5_REGNUM,
	105	SPARC_FP_REGNUM, /* %fp (%i6) */
	106	SPARC_I7_REGNUM, /* %i7 */
	107	SPARC_F0_REGNUM, /* %f0 */
	108	SPARC_F1_REGNUM,
	109	SPARC_F31_REGNUM /* %f31 */
	110	= SPARC_F0_REGNUM + 31
	111	};
	112
	113	enum sparc32_regnum
	114	{
	115	SPARC32_Y_REGNUM /* %y */
	116	= SPARC_F31_REGNUM + 1,
	117	SPARC32_PSR_REGNUM, /* %psr */
	118	SPARC32_WIM_REGNUM, /* %wim */
	119	SPARC32_TBR_REGNUM, /* %tbr */
	120	SPARC32_PC_REGNUM, /* %pc */
	121	SPARC32_NPC_REGNUM, /* %npc */
	122	SPARC32_FSR_REGNUM, /* %fsr */
	123	SPARC32_CSR_REGNUM, /* %csr */
	124
	125	/* Pseudo registers. */
	126	SPARC32_D0_REGNUM, /* %d0 */
	127	SPARC32_D30_REGNUM /* %d30 */
	128	= SPARC32_D0_REGNUM + 15
	129	};
	130	\f
	131
	132	struct sparc_frame_cache
133	{
134	/* Base address. */
135	CORE_ADDR base;
136	CORE_ADDR pc;
137
138	/* Do we have a frame? */
139	int frameless_p;
140
141	/* Do we have a Structure, Union or Quad-Precision return value?. */
142	int struct_return_p;
143
144	/* Table of saved registers. */
145	struct trad_frame_saved_reg *saved_regs;
146	};
147
148	/* Fetch the instruction at PC. */
149	extern unsigned long sparc_fetch_instruction (CORE_ADDR pc);
150
1c800673 MK	151	/* Fetch StackGhost Per-Process XOR cookie. */
	152	extern ULONGEST sparc_fetch_wcookie (void);
	153
386c036b MK	154	extern CORE_ADDR sparc_analyze_prologue (CORE_ADDR pc, CORE_ADDR current_pc,
	155	struct sparc_frame_cache *cache);
	156
	157	extern struct sparc_frame_cache *
	158	sparc_frame_cache (struct frame_info next_frame, void *this_cache);
	159
	160	extern struct sparc_frame_cache *
	161	sparc32_frame_cache (struct frame_info next_frame, void *this_cache);
	162
	163	\f
	164
0b1b3e42	165	extern int sparc_software_single_step (struct frame_info *frame);
386c036b MK	166
	167	extern void sparc_supply_rwindow (struct regcache *regcache,
	168	CORE_ADDR sp, int regnum);
	169	extern void sparc_collect_rwindow (const struct regcache *regcache,
	170	CORE_ADDR sp, int regnum);
	171
	172	/* Register offsets for SunOS 4. */
	173	extern const struct sparc_gregset sparc32_sunos4_gregset;
	174
	175	extern void sparc32_supply_gregset (const struct sparc_gregset *gregset,
	176	struct regcache *regcache,
	177	int regnum, const void *gregs);
	178	extern void sparc32_collect_gregset (const struct sparc_gregset *gregset,
	179	const struct regcache *regcache,
	180	int regnum, void *gregs);
	181	extern void sparc32_supply_fpregset (struct regcache *regcache,
	182	int regnum, const void *fpregs);
	183	extern void sparc32_collect_fpregset (const struct regcache *regcache,
	184	int regnum, void *fpregs);
	185
	186	/* Functions and variables exported from sparc-sol2-tdep.c. */
	187
	188	/* Register offsets for Solaris 2. */
	189	extern const struct sparc_gregset sparc32_sol2_gregset;
	190
	191	extern int sparc_sol2_pc_in_sigtramp (CORE_ADDR pc, char *name);
	192
149ad273 UW	193	extern char sparc_sol2_static_transform_name (char name);
149ad273 UW	194
386c036b MK	195	extern void sparc32_sol2_init_abi (struct gdbarch_info info,
	196	struct gdbarch *gdbarch);
	197
	198	/* Functions and variables exported from sparcnbsd-tdep.c. */
	199
	200	/* Register offsets for NetBSD. */
	201	extern const struct sparc_gregset sparc32nbsd_gregset;
	202
c893be75 MK	203	/* Return the address of a system call's alternative return
c893be75 MK	204	address. */
0b1b3e42 UW	205	extern CORE_ADDR sparcnbsd_step_trap (struct frame_info *frame,
0b1b3e42 UW	206	unsigned long insn);
c893be75	207
19671c2b MK	208	extern void sparc32nbsd_elf_init_abi (struct gdbarch_info info,
	209	struct gdbarch *gdbarch);
	210
566626fa MK	211	extern struct trad_frame_saved_reg *
	212	sparc32nbsd_sigcontext_saved_regs (struct frame_info *next_frame);
	213
386c036b	214	#endif /* sparc-tdep.h */