X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Farmnbsd-tdep.c;h=2215a8446fb6735fbcea5b43f3b98bf277f27a36;hb=ca5f395d6255337974262b4a6f40da531fcf6204;hp=291273b1fb8b74dc7376047fa007b8c723860aa8;hpb=9df628e0aa21fe96d386e6a634d0af30d9b2efb7;p=deliverable%2Fbinutils-gdb.git

diff --git a/gdb/armnbsd-tdep.c b/gdb/armnbsd-tdep.c
index 291273b1fb..2215a8446f 100644
--- a/gdb/armnbsd-tdep.c
+++ b/gdb/armnbsd-tdep.c
@@ -1,11 +1,13 @@
-/* Target-specific functions for ARM running under NetBSD.
-   Copyright 2002 Free Software Foundation, Inc.
+/* Target-dependent code for NetBSD/arm.
+
+   Copyright (C) 2002, 2003, 2004, 2006, 2007, 2008, 2009
+   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
+   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,
@@ -14,21 +16,26 @@
    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 "osabi.h"
+
+#include "gdb_string.h"
 
 #include "arm-tdep.h"
+#include "solib-svr4.h"
 
 /* Description of the longjmp buffer.  */
-#define JB_PC 24
-#define JB_ELEMENT_SIZE INT_REGISTER_RAW_SIZE
+#define ARM_NBSD_JB_PC 24
+#define ARM_NBSD_JB_ELEMENT_SIZE INT_REGISTER_SIZE
 
 /* For compatibility with previous implemenations of GDB on arm/NetBSD,
    override the default little-endian breakpoint.  */
 static const char arm_nbsd_arm_le_breakpoint[] = {0x11, 0x00, 0x00, 0xe6};
+static const char arm_nbsd_arm_be_breakpoint[] = {0xe6, 0x00, 0x00, 0x11};
+static const char arm_nbsd_thumb_le_breakpoint[] = {0xfe, 0xde};
+static const char arm_nbsd_thumb_be_breakpoint[] = {0xde, 0xfe};
 
 static void
 arm_netbsd_init_abi_common (struct gdbarch_info info,
@@ -37,30 +44,80 @@ arm_netbsd_init_abi_common (struct gdbarch_info info,
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
 
   tdep->lowest_pc = 0x8000;
-  tdep->arm_breakpoint = arm_nbsd_arm_le_breakpoint;
-  tdep->arm_breakpoint_size = sizeof (arm_nbsd_arm_le_breakpoint);
+  switch (info.byte_order)
+    {
+    case BFD_ENDIAN_LITTLE:
+      tdep->arm_breakpoint = arm_nbsd_arm_le_breakpoint;
+      tdep->thumb_breakpoint = arm_nbsd_thumb_le_breakpoint;
+      tdep->arm_breakpoint_size = sizeof (arm_nbsd_arm_le_breakpoint);
+      tdep->thumb_breakpoint_size = sizeof (arm_nbsd_thumb_le_breakpoint);
+      break;
+
+    case BFD_ENDIAN_BIG:
+      tdep->arm_breakpoint = arm_nbsd_arm_be_breakpoint;
+      tdep->thumb_breakpoint = arm_nbsd_thumb_be_breakpoint;
+      tdep->arm_breakpoint_size = sizeof (arm_nbsd_arm_be_breakpoint);
+      tdep->thumb_breakpoint_size = sizeof (arm_nbsd_thumb_be_breakpoint);
+      break;
+
+    default:
+      internal_error (__FILE__, __LINE__,
+		      _("arm_gdbarch_init: bad byte order for float format"));
+    }
 
-  tdep->jb_pc = JB_PC;
-  tdep->jb_elt_size = JB_ELEMENT_SIZE;
+  tdep->jb_pc = ARM_NBSD_JB_PC;
+  tdep->jb_elt_size = ARM_NBSD_JB_ELEMENT_SIZE;
+
+  /* Single stepping.  */
+  set_gdbarch_software_single_step (gdbarch, arm_software_single_step);
 }
   
 static void
 arm_netbsd_aout_init_abi (struct gdbarch_info info, 
 			  struct gdbarch *gdbarch)
 {
+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+
   arm_netbsd_init_abi_common (info, gdbarch);
+  if (tdep->fp_model == ARM_FLOAT_AUTO)
+    tdep->fp_model = ARM_FLOAT_SOFT_FPA;
 }
 
 static void
-arm_netbsd_elf_init_abi (struct gdbarch_info info, 
+arm_netbsd_elf_init_abi (struct gdbarch_info info,
 			 struct gdbarch *gdbarch)
 {
+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+
   arm_netbsd_init_abi_common (info, gdbarch);
+  if (tdep->fp_model == ARM_FLOAT_AUTO)
+    tdep->fp_model = ARM_FLOAT_SOFT_VFP;
+
+  /* NetBSD ELF uses SVR4-style shared libraries.  */
+  set_solib_svr4_fetch_link_map_offsets
+    (gdbarch, svr4_ilp32_fetch_link_map_offsets);
+}
+
+static enum gdb_osabi
+arm_netbsd_aout_osabi_sniffer (bfd *abfd)
+{
+  if (strcmp (bfd_get_target (abfd), "a.out-arm-netbsd") == 0)
+    return GDB_OSABI_NETBSD_AOUT;
+
+  return GDB_OSABI_UNKNOWN;
 }
 
+/* Provide a prototype to silence -Wmissing-prototypes.  */
+extern initialize_file_ftype _initialize_arm_netbsd_tdep;
+
 void
 _initialize_arm_netbsd_tdep (void)
 {
-  arm_gdbarch_register_os_abi (ARM_ABI_NETBSD_AOUT, arm_netbsd_aout_init_abi);
-  arm_gdbarch_register_os_abi (ARM_ABI_NETBSD_ELF, arm_netbsd_elf_init_abi);
+  gdbarch_register_osabi_sniffer (bfd_arch_arm, bfd_target_aout_flavour,
+				  arm_netbsd_aout_osabi_sniffer);
+
+  gdbarch_register_osabi (bfd_arch_arm, 0, GDB_OSABI_NETBSD_AOUT,
+                          arm_netbsd_aout_init_abi);
+  gdbarch_register_osabi (bfd_arch_arm, 0, GDB_OSABI_NETBSD_ELF,
+                          arm_netbsd_elf_init_abi);
 }