-/* Target-dependent code for SuperH running NetBSD, for GDB.
- Copyright 2002 Free Software Foundation, Inc.
+/* Target-dependent code for NetBSD/sh.
+
+ Copyright (C) 2002, 2003, 2006, 2007, 2008, 2009, 2010, 2011
+ 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
+ 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,
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. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "gdbcore.h"
-#include "regcache.h"
+#include "regset.h"
#include "value.h"
-#include "solib-svr4.h"
+#include "osabi.h"
-#include "shnbsd-tdep.h"
+#include "gdb_string.h"
-/* Convert an r0-r15 register number into an offset into a ptrace
+#include "sh-tdep.h"
+#include "solib-svr4.h"
+
+/* Convert a register number into an offset into a ptrace
register structure. */
-static const int regmap[] =
+static const struct sh_corefile_regmap 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 */
+ {R0_REGNUM, 20 * 4},
+ {R0_REGNUM + 1, 19 * 4},
+ {R0_REGNUM + 2, 18 * 4},
+ {R0_REGNUM + 3, 17 * 4},
+ {R0_REGNUM + 4, 16 * 4},
+ {R0_REGNUM + 5, 15 * 4},
+ {R0_REGNUM + 6, 14 * 4},
+ {R0_REGNUM + 7, 13 * 4},
+ {R0_REGNUM + 8, 12 * 4},
+ {R0_REGNUM + 9, 11 * 4},
+ {R0_REGNUM + 10, 10 * 4},
+ {R0_REGNUM + 11, 9 * 4},
+ {R0_REGNUM + 12, 8 * 4},
+ {R0_REGNUM + 13, 7 * 4},
+ {R0_REGNUM + 14, 6 * 4},
+ {R0_REGNUM + 15, 5 * 4},
+ {PC_REGNUM, 0 * 4},
+ {SR_REGNUM, 1 * 4},
+ {PR_REGNUM, 2 * 4},
+ {MACH_REGNUM, 3 * 4},
+ {MACL_REGNUM, 4 * 4},
+ {-1 /* Terminator. */, 0}
};
+\f
-#define SIZEOF_STRUCT_REG (21 * 4)
-
-void
-sh_nbsd_supply_registers (char *regs)
+static void
+shnbsd_init_abi (struct gdbarch_info info,
+ struct gdbarch *gdbarch)
{
- int regno;
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
- for (regno = R0_REGNUM; regno <= (R0_REGNUM + 15); regno++)
- supply_register (regno, regs + regmap[regno - R0_REGNUM]);
+ tdep->core_gregmap = (struct sh_corefile_regmap *)regmap;
- supply_register (PC_REGNUM, regs + (0 * 4));
- supply_register (SR_REGNUM, regs + (1 * 4));
- supply_register (PR_REGNUM, regs + (2 * 4));
- supply_register (MACH_REGNUM, regs + (3 * 4));
- supply_register (MACL_REGNUM, regs + (4 * 4));
+ set_solib_svr4_fetch_link_map_offsets
+ (gdbarch, svr4_ilp32_fetch_link_map_offsets);
}
+\f
-void
-sh_nbsd_supply_register (char *regs, int regno)
-{
- if (regno == -1)
- sh_nbsd_supply_registers (regs);
-
- if (regno == PC_REGNUM)
- supply_register (PC_REGNUM, regs + (0 * 4));
- else if (regno == SR_REGNUM)
- supply_register (SR_REGNUM, regs + (1 * 4));
- else if (regno == PR_REGNUM)
- supply_register (PR_REGNUM, regs + (2 * 4));
- else if (regno == MACH_REGNUM)
- supply_register (MACH_REGNUM, regs + (3 * 4));
- else if (regno == MACL_REGNUM)
- supply_register (MACL_REGNUM, regs + (4 * 4));
- else if (regno >= R0_REGNUM && regno <= (R0_REGNUM + 15))
- supply_register (regno, regs + regmap[regno - R0_REGNUM]);
-}
+/* OpenBSD uses uses the traditional NetBSD core file format, even for
+ ports that use ELF. */
+#define GDB_OSABI_NETBSD_CORE GDB_OSABI_OPENBSD_ELF
-void
-sh_nbsd_fill_registers (char *regs)
+static enum gdb_osabi
+shnbsd_core_osabi_sniffer (bfd *abfd)
{
- int regno;
+ if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0)
+ return GDB_OSABI_NETBSD_CORE;
- for (regno = R0_REGNUM; regno <= (R0_REGNUM + 15); regno++)
- regcache_collect (regno, regs + regmap[regno - R0_REGNUM]);
-
- regcache_collect (PC_REGNUM, regs + (0 * 4));
- regcache_collect (SR_REGNUM, regs + (1 * 4));
- regcache_collect (PR_REGNUM, regs + (2 * 4));
- regcache_collect (MACH_REGNUM, regs + (3 * 4));
- regcache_collect (MACL_REGNUM, regs + (4 * 4));
+ return GDB_OSABI_UNKNOWN;
}
-void
-sh_nbsd_fill_register (char *regs, int regno)
-{
- if (regno == -1)
- sh_nbsd_fill_registers (regs);
-
- if (regno == PC_REGNUM)
- regcache_collect (PC_REGNUM, regs + (0 * 4));
- else if (regno == SR_REGNUM)
- regcache_collect (SR_REGNUM, regs + (1 * 4));
- else if (regno == PR_REGNUM)
- regcache_collect (PR_REGNUM, regs + (2 * 4));
- else if (regno == MACH_REGNUM)
- regcache_collect (MACH_REGNUM, regs + (3 * 4));
- else if (regno == MACL_REGNUM)
- regcache_collect (MACL_REGNUM, regs + (4 * 4));
- else if (regno >= R0_REGNUM && regno <= (R0_REGNUM + 15))
- regcache_collect (regno, regs + regmap[regno - R0_REGNUM]);
-}
-
-/* Fetch (and possibly build) an appropriate link_map_offsets
- structure for NetBSD/sh targets using the struct offsets
- defined in <link.h> (but without actual reference to that file).
-
- This makes it possible to access NetBSD/sh shared libraries
- from a GDB that was not built on a NetBSD/sh host (for cross
- debugging). */
-
-static struct link_map_offsets *
-sh_nbsd_solib_svr4_fetch_link_map_offsets (void)
-{
- static struct link_map_offsets lmo;
- static struct link_map_offsets *lmp = NULL;
-
- if (lmp == NULL)
- {
- lmp = &lmo;
-
- lmo.r_debug_size = 16;
-
- lmo.r_map_offset = 4;
- lmo.r_map_size = 4;
-
- lmo.link_map_size = 20;
-
- lmo.l_addr_offset = 0;
- lmo.l_addr_size = 4;
-
- lmo.l_name_offset = 4;
- lmo.l_name_size = 4;
-
- lmo.l_next_offset = 12;
- lmo.l_next_size = 4;
-
- lmo.l_prev_offset = 16;
- lmo.l_prev_size = 4;
- }
-
- return lmp;
-}
-
-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. */
- sh_nbsd_supply_registers (core_reg_sect);
-}
-
-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
- sh_nbsd_supply_registers (core_reg_sect);
- break;
-
- default:
- /* Don't know what kind of register request this is; just ignore it. */
- break;
- }
-}
-
-static struct core_fns sh_nbsd_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 sh_nbsd_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
-sh_nbsd_init_abi (struct gdbarch_info info,
- struct gdbarch *gdbarch)
-{
- set_solib_svr4_fetch_link_map_offsets (gdbarch,
- sh_nbsd_solib_svr4_fetch_link_map_offsets);
-}
+/* Provide a prototype to silence -Wmissing-prototypes. */
+extern initialize_file_ftype _initialize_shnbsd_tdep;
void
-_initialize_sh_nbsd_tdep (void)
+_initialize_shnbsd_tdep (void)
{
- add_core_fns (&sh_nbsd_core_fns);
- add_core_fns (&sh_nbsd_elfcore_fns);
-
- sh_gdbarch_register_os_abi (SH_OSABI_NETBSD_ELF, sh_nbsd_init_abi);
+ /* BFD doesn't set a flavour for NetBSD style a.out core files. */
+ gdbarch_register_osabi_sniffer (bfd_arch_sh, bfd_target_unknown_flavour,
+ shnbsd_core_osabi_sniffer);
+
+ gdbarch_register_osabi (bfd_arch_sh, 0, GDB_OSABI_NETBSD_ELF,
+ shnbsd_init_abi);
+ gdbarch_register_osabi (bfd_arch_sh, 0, GDB_OSABI_OPENBSD_ELF,
+ shnbsd_init_abi);
}
projects / deliverable / binutils-gdb.git / blobdiff