[deliverable/binutils-gdb.git] / gdb / sparc64fbsd-tdep.c

/* Target-dependent code for FreeBSD/sparc64.

   Copyright 2003 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.  */

#include "defs.h"
#include "gdbcore.h"
#include "osabi.h"
#include "regcache.h"
#include "target.h"

#include "gdb_string.h"

#include "sparc64-tdep.h"

/* From <machine/reg.h>.  */

/* Offset of registers in `struct reg'.  */
int sparc64fbsd_r_global_offset = (0 * 8);
int sparc64fbsd_r_out_offset = (8 * 8);
int sparc64fbsd_r_fprs_offset = (16 * 8);
int sparc64fbsd_r_tnpc_offset = (24 * 8);
int sparc64fbsd_r_tpc_offset = (25 * 8);
int sparc64fbsd_r_tstate_offset = (26 * 8);
int sparc64fbsd_r_y_offset = (28 * 8);

/* Size of `struct reg' and `struct fpreg'.  */
int sparc64fbsd_sizeof_struct_reg = 256;
int sparc64fbsd_sizeof_struct_fpreg = 272;

void
sparc64fbsd_supply_reg (const char *regs, int regnum)
{
  char buf[8];
  int i;

  if (regnum == SPARC64_PC_REGNUM || regnum == -1)
    supply_register (SPARC64_PC_REGNUM, regs + sparc64fbsd_r_tpc_offset);

  if (regnum == SPARC64_NPC_REGNUM || regnum == -1)
    supply_register (SPARC64_NPC_REGNUM, regs + sparc64fbsd_r_tnpc_offset);

  if (regnum == SPARC64_STATE_REGNUM || regnum == -1)
    supply_register (SPARC64_STATE_REGNUM, regs + sparc64fbsd_r_tstate_offset);

  if (regnum == SPARC64_FPRS_REGNUM || regnum == -1)
    supply_register (SPARC64_FPRS_REGNUM, regs + sparc64fbsd_r_fprs_offset);

  if (regnum == SPARC64_Y_REGNUM || regnum == -1)
    supply_register (SPARC64_Y_REGNUM, regs + sparc64fbsd_r_y_offset);

  if ((regnum >= SPARC_G0_REGNUM && regnum <= SPARC_G7_REGNUM) || regnum == -1)
    {
      if (regnum == SPARC_G0_REGNUM || regnum == -1)
	supply_register (SPARC_G0_REGNUM, NULL); /* %g0 is always zero.  */
      for (i = SPARC_G1_REGNUM; i <= SPARC_G7_REGNUM; i++)
	{
	  if (regnum == i || regnum == -1)
	    supply_register (i, (regs + sparc64fbsd_r_global_offset
				 + ((i - SPARC_G0_REGNUM) * 8)));
	}
    }

  if ((regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1)
    {
      for (i = SPARC_O0_REGNUM; i <= SPARC_O7_REGNUM; i++)
	{
	  if (regnum == i || regnum == -1)
	    supply_register (i, (regs + sparc64fbsd_r_out_offset
				 + ((i - SPARC_O0_REGNUM) * 8)));
        }
    }

  /* Inputs and Locals are stored onto the stack by by the kernel.  */
  if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) || regnum == -1)
    {
      ULONGEST sp;

      regcache_cooked_read_unsigned (current_regcache, SPARC_SP_REGNUM, &sp);
      sparc_supply_rwindow (sp, regnum);
    }
}

void
sparc64fbsd_fill_reg (char *regs, int regnum)
{
  char buf[8];
  int i;

  if (regnum == SPARC64_PC_REGNUM || regnum == -1)
    regcache_collect (SPARC64_PC_REGNUM, regs + sparc64fbsd_r_tpc_offset);

  if (regnum == SPARC64_NPC_REGNUM || regnum == -1)
    regcache_collect (SPARC64_NPC_REGNUM, regs + sparc64fbsd_r_tnpc_offset);

  if (regnum == SPARC64_FPRS_REGNUM || regnum == -1)
    regcache_collect (SPARC64_FPRS_REGNUM, regs + sparc64fbsd_r_fprs_offset);

  if (regnum == SPARC64_Y_REGNUM || regnum == -1)
    regcache_collect (SPARC64_Y_REGNUM, regs + sparc64fbsd_r_y_offset);

  if ((regnum >= SPARC_G0_REGNUM && regnum <= SPARC_G7_REGNUM) || regnum == -1)
    {
      /* %g0 is always zero.  */
      for (i = SPARC_G1_REGNUM; i <= SPARC_G7_REGNUM; i++)
	{
	  if (regnum == i || regnum == -1)
	    regcache_collect (i, (regs + sparc64fbsd_r_global_offset
				  + ((i - SPARC_G0_REGNUM) * 8)));
	}
    }

  if ((regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1)
    {
      for (i = SPARC_O0_REGNUM; i <= SPARC_O7_REGNUM; i++)
	{
	  if (regnum == i || regnum == -1)
	    regcache_collect (i, (regs + sparc64fbsd_r_out_offset
				  + ((i - SPARC_O0_REGNUM) * 8)));
        }
    }

  /* Responsibility for the stack regs is pushed off onto the caller.  */
}

void
sparc64fbsd_supply_fpreg (const char *fpregs, int regnum)
{
  int i;

  for (i = 0; i < 32; i++)
    {
      if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1)
	supply_register (SPARC_F0_REGNUM + i, fpregs + (i * 4));
    }

  for (i = 0; i < 16; i++)
    {
      if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1)
	supply_register (SPARC64_F32_REGNUM + i, fpregs + (32 * 4) + (i * 8));
    }

  if (regnum == SPARC64_FSR_REGNUM || regnum == -1)
    supply_register (SPARC64_FSR_REGNUM, fpregs + (32 * 4) + (16 * 8));
}

void
sparc64fbsd_fill_fpreg (char *fpregs, int regnum)
{
  int i;

  for (i = 0; i < 32; i++)
    {
      if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1)
	regcache_collect (SPARC_F0_REGNUM + i, fpregs + (i * 4));
    }

  for (i = 0; i < 16; i++)
    {
      if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1)
	regcache_collect (SPARC64_F32_REGNUM + i, fpregs + (32 * 4) + (i * 8));
    }

  if (regnum == SPARC64_FSR_REGNUM || regnum == -1)
    regcache_collect (SPARC64_FSR_REGNUM, fpregs + (32 * 4) + (16 * 8));
}
\f

static void
fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which,
                      CORE_ADDR ignore)
{
  switch (which)
    {
    case 0:  /* Integer registers */
      if (core_reg_size != sparc64fbsd_sizeof_struct_reg)
	warning ("Wrong size register set in core file.");
      else
	sparc64fbsd_supply_reg (core_reg_sect, -1);
      break;

    case 2:  /* Floating pointer registers */
      if (core_reg_size != sparc64fbsd_sizeof_struct_fpreg)
	warning ("Wrong size FP register set in core file.");
      else
	sparc64fbsd_supply_fpreg (core_reg_sect, -1);
      break;

    default:
      /* Don't know what kind of register request this is; just ignore it.  */
      break;
    }
}

static struct core_fns sparc64fbsd_core_fns =
{
  bfd_target_elf_flavour,		/* core_flavour */
  default_check_format,			/* check_format */
  default_core_sniffer,			/* core_sniffer */
  fetch_core_registers,			/* core_read_registers */
  NULL
};
\f

static void
sparc64fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
  /* Nothing yet.  */
}

/* Provide a prototype to silence -Wmissing-prototypes.  */
void _initialize_sparc64fbsd_tdep (void);

void
_initialize_sparc64fbsd_tdep (void)
{
  gdbarch_register_osabi (bfd_arch_sparc, bfd_mach_sparc_v9,
			  GDB_OSABI_FREEBSD_ELF, sparc64fbsd_init_abi);

  add_core_fns (&sparc64fbsd_core_fns);
}
Commit	Line	Data
8b39fe56 MK	1	/* Target-dependent code for FreeBSD/sparc64.
	2
	3	Copyright 2003 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 2 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, write to the Free Software
	19	Foundation, Inc., 59 Temple Place - Suite 330,
	20	Boston, MA 02111-1307, USA. */
	21
	22	#include "defs.h"
	23	#include "gdbcore.h"
	24	#include "osabi.h"
	25	#include "regcache.h"
	26	#include "target.h"
	27
	28	#include "gdb_string.h"
	29
	30	#include "sparc64-tdep.h"
	31
	32	/* From <machine/reg.h>. */
	33
	34	/* Offset of registers in `struct reg'. */
	35	int sparc64fbsd_r_global_offset = (0 * 8);
	36	int sparc64fbsd_r_out_offset = (8 * 8);
	37	int sparc64fbsd_r_fprs_offset = (16 * 8);
	38	int sparc64fbsd_r_tnpc_offset = (24 * 8);
	39	int sparc64fbsd_r_tpc_offset = (25 * 8);
	40	int sparc64fbsd_r_tstate_offset = (26 * 8);
	41	int sparc64fbsd_r_y_offset = (28 * 8);
	42
	43	/* Size of `struct reg' and `struct fpreg'. */
	44	int sparc64fbsd_sizeof_struct_reg = 256;
	45	int sparc64fbsd_sizeof_struct_fpreg = 272;
	46
	47	void
	48	sparc64fbsd_supply_reg (const char *regs, int regnum)
	49	{
	50	char buf[8];
	51	int i;
	52
	53	if (regnum == SPARC64_PC_REGNUM \|\| regnum == -1)
	54	supply_register (SPARC64_PC_REGNUM, regs + sparc64fbsd_r_tpc_offset);
	55
	56	if (regnum == SPARC64_NPC_REGNUM \|\| regnum == -1)
	57	supply_register (SPARC64_NPC_REGNUM, regs + sparc64fbsd_r_tnpc_offset);
	58
	59	if (regnum == SPARC64_STATE_REGNUM \|\| regnum == -1)
	60	supply_register (SPARC64_STATE_REGNUM, regs + sparc64fbsd_r_tstate_offset);
	61
	62	if (regnum == SPARC64_FPRS_REGNUM \|\| regnum == -1)
	63	supply_register (SPARC64_FPRS_REGNUM, regs + sparc64fbsd_r_fprs_offset);
	64
65	if (regnum == SPARC64_Y_REGNUM \|\| regnum == -1)
66	supply_register (SPARC64_Y_REGNUM, regs + sparc64fbsd_r_y_offset);
67
68	if ((regnum >= SPARC_G0_REGNUM && regnum <= SPARC_G7_REGNUM) \|\| regnum == -1)
69	{
70	if (regnum == SPARC_G0_REGNUM \|\| regnum == -1)
71	supply_register (SPARC_G0_REGNUM, NULL); /* %g0 is always zero. */
72	for (i = SPARC_G1_REGNUM; i <= SPARC_G7_REGNUM; i++)
73	{
74	if (regnum == i \|\| regnum == -1)
75	supply_register (i, (regs + sparc64fbsd_r_global_offset
76	+ ((i - SPARC_G0_REGNUM) * 8)));
77	}
78	}
79
80	if ((regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM) \|\| regnum == -1)
81	{
82	for (i = SPARC_O0_REGNUM; i <= SPARC_O7_REGNUM; i++)
83	{
84	if (regnum == i \|\| regnum == -1)
85	supply_register (i, (regs + sparc64fbsd_r_out_offset
86	+ ((i - SPARC_O0_REGNUM) * 8)));
87	}
88	}
89
90	/* Inputs and Locals are stored onto the stack by by the kernel. */
91	if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) \|\| regnum == -1)
92	{
93	ULONGEST sp;
94
95	regcache_cooked_read_unsigned (current_regcache, SPARC_SP_REGNUM, &sp);
3567a8ea	96	sparc_supply_rwindow (sp, regnum);
8b39fe56 MK	97	}
	98	}
	99
	100	void
	101	sparc64fbsd_fill_reg (char *regs, int regnum)
	102	{
	103	char buf[8];
	104	int i;
	105
	106	if (regnum == SPARC64_PC_REGNUM \|\| regnum == -1)
	107	regcache_collect (SPARC64_PC_REGNUM, regs + sparc64fbsd_r_tpc_offset);
	108
	109	if (regnum == SPARC64_NPC_REGNUM \|\| regnum == -1)
	110	regcache_collect (SPARC64_NPC_REGNUM, regs + sparc64fbsd_r_tnpc_offset);
	111
	112	if (regnum == SPARC64_FPRS_REGNUM \|\| regnum == -1)
	113	regcache_collect (SPARC64_FPRS_REGNUM, regs + sparc64fbsd_r_fprs_offset);
	114
	115	if (regnum == SPARC64_Y_REGNUM \|\| regnum == -1)
	116	regcache_collect (SPARC64_Y_REGNUM, regs + sparc64fbsd_r_y_offset);
	117
	118	if ((regnum >= SPARC_G0_REGNUM && regnum <= SPARC_G7_REGNUM) \|\| regnum == -1)
	119	{
	120	/* %g0 is always zero. */
	121	for (i = SPARC_G1_REGNUM; i <= SPARC_G7_REGNUM; i++)
	122	{
	123	if (regnum == i \|\| regnum == -1)
	124	regcache_collect (i, (regs + sparc64fbsd_r_global_offset
	125	+ ((i - SPARC_G0_REGNUM) * 8)));
	126	}
	127	}
	128
	129	if ((regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM) \|\| regnum == -1)
	130	{
	131	for (i = SPARC_O0_REGNUM; i <= SPARC_O7_REGNUM; i++)
	132	{
	133	if (regnum == i \|\| regnum == -1)
	134	regcache_collect (i, (regs + sparc64fbsd_r_out_offset
	135	+ ((i - SPARC_O0_REGNUM) * 8)));
	136	}
	137	}
	138
	139	/* Responsibility for the stack regs is pushed off onto the caller. */
	140	}
	141
	142	void
	143	sparc64fbsd_supply_fpreg (const char *fpregs, int regnum)
	144	{
	145	int i;
	146
	147	for (i = 0; i < 32; i++)
	148	{
	149	if (regnum == (SPARC_F0_REGNUM + i) \|\| regnum == -1)
	150	supply_register (SPARC_F0_REGNUM + i, fpregs + (i * 4));
	151	}
	152
	153	for (i = 0; i < 16; i++)
	154	{
	155	if (regnum == (SPARC64_F32_REGNUM + i) \|\| regnum == -1)
	156	supply_register (SPARC64_F32_REGNUM + i, fpregs + (32 * 4) + (i * 8));
	157	}
	158
	159	if (regnum == SPARC64_FSR_REGNUM \|\| regnum == -1)
	160	supply_register (SPARC64_FSR_REGNUM, fpregs + (32 * 4) + (16 * 8));
161	}
162
163	void
164	sparc64fbsd_fill_fpreg (char *fpregs, int regnum)
165	{
166	int i;
167
168	for (i = 0; i < 32; i++)
169	{
170	if (regnum == (SPARC_F0_REGNUM + i) \|\| regnum == -1)
171	regcache_collect (SPARC_F0_REGNUM + i, fpregs + (i * 4));
172	}
173
174	for (i = 0; i < 16; i++)
175	{
176	if (regnum == (SPARC64_F32_REGNUM + i) \|\| regnum == -1)
177	regcache_collect (SPARC64_F32_REGNUM + i, fpregs + (32 * 4) + (i * 8));
178	}
179
180	if (regnum == SPARC64_FSR_REGNUM \|\| regnum == -1)
181	regcache_collect (SPARC64_FSR_REGNUM, fpregs + (32 * 4) + (16 * 8));
182	}
183	\f
184
185	static void
186	fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which,
187	CORE_ADDR ignore)
188	{
189	switch (which)
190	{
191	case 0: /* Integer registers */
192	if (core_reg_size != sparc64fbsd_sizeof_struct_reg)
193	warning ("Wrong size register set in core file.");
194	else
195	sparc64fbsd_supply_reg (core_reg_sect, -1);
196	break;
197
198	case 2: /* Floating pointer registers */
199	if (core_reg_size != sparc64fbsd_sizeof_struct_fpreg)
200	warning ("Wrong size FP register set in core file.");
201	else
202	sparc64fbsd_supply_fpreg (core_reg_sect, -1);
203	break;
204
205	default:
206	/* Don't know what kind of register request this is; just ignore it. */
207	break;
208	}
209	}
210
211	static struct core_fns sparc64fbsd_core_fns =
212	{
213	bfd_target_elf_flavour, /* core_flavour */
214	default_check_format, /* check_format */
215	default_core_sniffer, /* core_sniffer */
216	fetch_core_registers, /* core_read_registers */
217	NULL
218	};
219	\f
220
221	static void
222	sparc64fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
223	{
224	/* Nothing yet. */
225	}
226
227	/* Provide a prototype to silence -Wmissing-prototypes. */
228	void _initialize_sparc64fbsd_tdep (void);
229
230	void
231	_initialize_sparc64fbsd_tdep (void)
232	{
233	gdbarch_register_osabi (bfd_arch_sparc, bfd_mach_sparc_v9,
234	GDB_OSABI_FREEBSD_ELF, sparc64fbsd_init_abi);
235
236	add_core_fns (&sparc64fbsd_core_fns);
237	}