* linespec.c (decode_objc): Add cleanup to free

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

diff --git a/gdb/armnbsd-tdep.c b/gdb/armnbsd-tdep.c
index 7c9e425bc6a261e0d12ef36e97091a939e071571..19aa000b4750c867dbce198bc36177b3ebfee0cd 100644 (file)
--- a/gdb/armnbsd-tdep.c
+++ b/gdb/armnbsd-tdep.c
@@ -1,11 +1,12 @@
-/* Target-specific functions for ARM running under NetBSD.
-   Copyright 2002 Free Software Foundation, Inc.
+/* Target-dependent code for NetBSD/arm.
+
+   Copyright (C) 2002-2004, 2006-2012 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,
@@ -14,30 +15,26 @@
    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 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,
@@ -46,11 +43,32 @@ 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);
-
-  tdep->jb_pc = JB_PC;
-  tdep->jb_elt_size = JB_ELEMENT_SIZE;
+  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
@@ -60,21 +78,23 @@ 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;
 
-  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
@@ -86,14 +106,17 @@ arm_netbsd_aout_osabi_sniffer (bfd *abfd)
   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)
 {
   gdbarch_register_osabi_sniffer (bfd_arch_arm, bfd_target_aout_flavour,
                                  arm_netbsd_aout_osabi_sniffer);
 
-  gdbarch_register_osabi (bfd_arch_arm, GDB_OSABI_NETBSD_AOUT,
+  gdbarch_register_osabi (bfd_arch_arm, 0, GDB_OSABI_NETBSD_AOUT,
                           arm_netbsd_aout_init_abi);
-  gdbarch_register_osabi (bfd_arch_arm, GDB_OSABI_NETBSD_ELF,
+  gdbarch_register_osabi (bfd_arch_arm, 0, GDB_OSABI_NETBSD_ELF,
                           arm_netbsd_elf_init_abi);
 }