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

diff --git a/gdb/armnbsd-tdep.c b/gdb/armnbsd-tdep.c
index 80113f519c6d26329ee5c9e6895b857c90daff2c..a446bd77931d331c7b2dabf077c7de1af201b20b 100644 (file)
--- a/gdb/armnbsd-tdep.c
+++ b/gdb/armnbsd-tdep.c
@@ -1,5 +1,6 @@
-/* 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 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -15,31 +16,27 @@
 
    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.  */
+   Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.  */
 
 #include "defs.h"
+#include "osabi.h"
+
+#include "gdb_string.h"
 
 #include "arm-tdep.h"
-#include "nbsd-tdep.h"
 #include "solib-svr4.h"
 
 /* Description of the longjmp buffer.  */
 #define ARM_NBSD_JB_PC 24
-#define ARM_NBSD_JB_ELEMENT_SIZE INT_REGISTER_RAW_SIZE
+#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 int
-arm_netbsd_aout_in_solib_call_trampoline (CORE_ADDR pc, char *name)
-{
-  if (strcmp (name, "_PROCEDURE_LINKAGE_TABLE_") == 0)
-    return 1;
-
-  return 0;
-}
+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,
@@ -48,11 +45,32 @@ 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 = 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
@@ -62,24 +80,23 @@ arm_netbsd_aout_init_abi (struct gdbarch_info info,
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
 
   arm_netbsd_init_abi_common (info, gdbarch);
-
-  set_gdbarch_in_solib_call_trampoline
-    (gdbarch, arm_netbsd_aout_in_solib_call_trampoline);
-  tdep->fp_model = ARM_FLOAT_SOFT;
+  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;
 
-  set_solib_svr4_fetch_link_map_offsets (gdbarch,
-                                nbsd_ilp32_solib_svr4_fetch_link_map_offsets);
-
-  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