-/* 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.
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 "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,
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;
}
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);
}