* sh-nbsd-nat.c: Rename to...

* shnbsd-nat.c: ...this.
* sh-nbsd-tdep.c: Rename to...
* shnbsd-tdep.c: ...this.
* sh-nbsd-tdep.h: Rename to...
* shnbsd-tdep.h: ...this.
* config/sh/nbsd.mh: Use shnbsd-nat.o.
* config/sh/nbsd.mt: Use shnbsd-tdep.o.

1 files changed, 235 insertions, 0 deletions

diff --git a/gdb/shnbsd-tdep.c b/gdb/shnbsd-tdep.c
new file mode 100644
index 0000000..a185b51
--- /dev/null
+++ b/gdb/shnbsd-tdep.c
@@ -0,0 +1,235 @@
+/* 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 "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
+sh_nbsd_supply_registers (char *regs)
+{
+  int regno;
+
+  for (regno = R0_REGNUM; regno <= (R0_REGNUM + 15); regno++)
+    supply_register (regno, regs + regmap[regno - R0_REGNUM]);
+
+  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));
+}
+
+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]);
+}
+
+void
+sh_nbsd_fill_registers (char *regs)
+{
+  int regno;
+
+  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));
+}
+
+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);
+}
+
+void
+_initialize_sh_nbsd_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);
+}