binutils-gdb/gdb/shnbsd-tdep.c

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/* Target-dependent code for SuperH running NetBSD, for GDB.
Copyright 2002 Free Software Foundation, Inc.
Contributed by Wasabi Systems, 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 "regcache.h"
#include "value.h"
#include "solib-svr4.h"
#include "nbsd-tdep.h"
#include "sh-tdep.h"
#include "shnbsd-tdep.h"
/* Convert an r0-r15 register number into an offset into a ptrace
register structure. */
static const int regmap[] =
{
(20 * 4), /* r0 */
(19 * 4), /* r1 */
(18 * 4), /* r2 */
(17 * 4), /* r3 */
(16 * 4), /* r4 */
(15 * 4), /* r5 */
(14 * 4), /* r6 */
(13 * 4), /* r7 */
(12 * 4), /* r8 */
(11 * 4), /* r9 */
(10 * 4), /* r10 */
( 9 * 4), /* r11 */
( 8 * 4), /* r12 */
( 7 * 4), /* r13 */
( 6 * 4), /* r14 */
( 5 * 4), /* r15 */
};
#define SIZEOF_STRUCT_REG (21 * 4)
void
shnbsd_supply_reg (char *regs, int regno)
{
int i;
if (regno == PC_REGNUM || regno == -1)
supply_register (PC_REGNUM, regs + (0 * 4));
if (regno == SR_REGNUM || regno == -1)
supply_register (SR_REGNUM, regs + (1 * 4));
if (regno == PR_REGNUM || regno == -1)
supply_register (PR_REGNUM, regs + (2 * 4));
if (regno == MACH_REGNUM || regno == -1)
supply_register (MACH_REGNUM, regs + (3 * 4));
if (regno == MACL_REGNUM || regno == -1)
supply_register (MACL_REGNUM, regs + (4 * 4));
if ((regno >= R0_REGNUM && regno <= (R0_REGNUM + 15)) || regno == -1)
{
for (i = R0_REGNUM; i <= (R0_REGNUM + 15); i++)
if (regno == i || regno == -1)
supply_register (i, regs + regmap[i - R0_REGNUM]);
}
}
void
shnbsd_fill_reg (char *regs, int regno)
{
int i;
if (regno == PC_REGNUM || regno == -1)
regcache_collect (PC_REGNUM, regs + (0 * 4));
if (regno == SR_REGNUM || regno == -1)
regcache_collect (SR_REGNUM, regs + (1 * 4));
if (regno == PR_REGNUM || regno == -1)
regcache_collect (PR_REGNUM, regs + (2 * 4));
if (regno == MACH_REGNUM || regno == -1)
regcache_collect (MACH_REGNUM, regs + (3 * 4));
if (regno == MACL_REGNUM || regno == -1)
regcache_collect (MACL_REGNUM, regs + (4 * 4));
if ((regno >= R0_REGNUM && regno <= (R0_REGNUM + 15)) || regno == -1)
{
for (i = R0_REGNUM; i <= (R0_REGNUM + 15); i++)
if (regno == i || regno == -1)
regcache_collect (i, regs + regmap[i - R0_REGNUM]);
}
}
static void
fetch_core_registers (char *core_reg_sect, unsigned core_reg_size,
int which, CORE_ADDR ignore)
{
/* We get everything from the .reg section. */
if (which != 0)
return;
if (core_reg_size < SIZEOF_STRUCT_REG)
{
warning ("Wrong size register set in core file.");
return;
}
/* Integer registers. */
shnbsd_supply_reg (core_reg_sect, -1);
}
static void
fetch_elfcore_registers (char *core_reg_sect, unsigned core_reg_size,
int which, CORE_ADDR ignore)
{
switch (which)
{
case 0: /* Integer registers. */
if (core_reg_size != SIZEOF_STRUCT_REG)
warning ("Wrong size register set in core file.");
else
shnbsd_supply_reg (core_reg_sect, -1);
break;
default:
/* Don't know what kind of register request this is; just ignore it. */
break;
}
}
static struct core_fns shnbsd_core_fns =
{
bfd_target_unknown_flavour, /* core_flavour */
default_check_format, /* check_format */
default_core_sniffer, /* core_sniffer */
fetch_core_registers, /* core_read_registers */
NULL /* next */
};
static struct core_fns shnbsd_elfcore_fns =
{
bfd_target_elf_flavour, /* core_flavour */
default_check_format, /* check_format */
default_core_sniffer, /* core_sniffer */
fetch_elfcore_registers, /* core_read_registers */
NULL /* next */
};
static void
shnbsd_init_abi (struct gdbarch_info info,
struct gdbarch *gdbarch)
{
set_solib_svr4_fetch_link_map_offsets (gdbarch,
nbsd_ilp32_solib_svr4_fetch_link_map_offsets);
}
void
_initialize_shnbsd_tdep (void)
{
add_core_fns (&shnbsd_core_fns);
add_core_fns (&shnbsd_elfcore_fns);
* Makefile.in (SFILES): Add osabi.c. (COMMON_OBS): Add osabi.o. (osabi.o): New dependency list. * osabi.c: New file. * osabi.h: New file. * doc/gdbint.texinfo: Document new generic OS ABI framework. * Makefile.in (alpha_tdep_h): Define and use instead of alpha-tdep.h. * alpha-tdep.c (alpha_abi_names, process_note_abi_tag_sections, get_elfosabi, alpha_abi_handler_list, alpha_gdbarch_register_os_abi): Remove. (alpha_gdbarch_init, alpha_dump_tdep): Use generic OS ABI framework. * alpha-tdep.h: Include osabi.h. (alpha_abi): Remove. (gdbarch_tdep): Use generic OS ABI framework. * alpha-linux-tdep.c (_initialize_alpha_linux_tdep): Use gdbarch_register_osabi. * alpha-osf1-tdep.c (_initialize_alpha_osf1_tdep): Likewise. * alphafbsd-tdep.c (_initialize_alphafbsd_tdep): Likewise. * alphanbsd-tdep.c (_initialize_alphanbsd_tdep): Likewise. * Makefile.in (sh_tdep_h): Add osabi.h. * sh-tdep.h (sh_osabi): Remove. (gdbarch_tdep): Use generic OS ABI framework. * sh-tdep.c (sh_osabi_names, process_note_abi_tag_sections, sh_osabi_handler_list, sh_gdbarch_register_os_abi): Remove. (sh_gdbarch_init, sh_dump_tdep): Use generic OS ABI framework. * shnbsd-tdep.c (_initialize_shnbsd_tdep): Use gdbarch_register_osabi. * Makefile.in (arm_tdep_h): Define and use instead of arm-tdep.h. * arm-linux-tdep.c (_initialize_arm_linux_tdep): Use gdbarch_register_osabi. * arm-tdep.c (arm_abi_names, process_note_abi_tag_sections, arm_abi_handler_list, arm_gdbarch_register_os_abi): Remove. (get_elfosabi): Rename to... (arm_elf_osabi_sniffer): ...this. Adjust to use generic OS ABI framework support routines. (arm_gdbarch_init): Use generic OS ABI framework. (arm_dump_tdep): Likewise. (_initialize_arm_tdep): Likewise. * arm-tdep.h: Include osabi.h. (arm_abi): Remove. (gdbarch_tdep): Remove arm_abi and abi_name members. Add osabi member. (arm_gdbarch_register_os_abi): Remove prototype. * armnbsd-tdep.c (arm_netbsd_aout_osabi_sniffer): New function. (_initialize_arm_netbsd_tdep): Use gdbarch_register_osabi. * Makefile.in (mips-tdep.o): Add osabi.h to dependency list. * mips-tdep.c: Include osabi.h. (gdbarch_tdep, mips_gdbarch_init, mips_dump_tdep): Use generic OS ABI framework.
2002-05-21 17:36:03 +02:00
gdbarch_register_osabi (bfd_arch_sh, GDB_OSABI_NETBSD_ELF, shnbsd_init_abi);
}