105 lines
3.0 KiB
C
105 lines
3.0 KiB
C
/* Target-specific functions for ARM running under NetBSD.
|
|
Copyright 2002 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
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
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. */
|
|
|
|
#include "defs.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
|
|
|
|
/* 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 void
|
|
arm_netbsd_init_abi_common (struct gdbarch_info info,
|
|
struct gdbarch *gdbarch)
|
|
{
|
|
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 = ARM_NBSD_JB_PC;
|
|
tdep->jb_elt_size = ARM_NBSD_JB_ELEMENT_SIZE;
|
|
}
|
|
|
|
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);
|
|
|
|
set_gdbarch_in_solib_call_trampoline
|
|
(gdbarch, arm_netbsd_aout_in_solib_call_trampoline);
|
|
tdep->fp_model = ARM_FLOAT_SOFT;
|
|
}
|
|
|
|
static void
|
|
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);
|
|
|
|
set_solib_svr4_fetch_link_map_offsets (gdbarch,
|
|
nbsd_ilp32_solib_svr4_fetch_link_map_offsets);
|
|
|
|
tdep->fp_model = ARM_FLOAT_SOFT_VFP;
|
|
}
|
|
|
|
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)
|
|
{
|
|
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,
|
|
arm_netbsd_aout_init_abi);
|
|
gdbarch_register_osabi (bfd_arch_arm, GDB_OSABI_NETBSD_ELF,
|
|
arm_netbsd_elf_init_abi);
|
|
}
|