-/* Target-specific functions for ARM running under NetBSD.
- Copyright 2002, 2003 Free Software Foundation, Inc.
+/* Target-dependent code for NetBSD/arm.
+
+ Copyright (C) 2002-2014 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,
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 <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 gdb_byte arm_nbsd_arm_le_breakpoint[] = {0x11, 0x00, 0x00, 0xe6};
+static const gdb_byte arm_nbsd_arm_be_breakpoint[] = {0xe6, 0x00, 0x00, 0x11};
+static const gdb_byte arm_nbsd_thumb_le_breakpoint[] = {0xfe, 0xde};
+static const gdb_byte arm_nbsd_thumb_be_breakpoint[] = {0xde, 0xfe};
static void
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
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_FPA;
+ 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
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)
{