| /* Target-dependent code for OpenBSD/hppa |
| |
| Copyright (C) 2004, 2005, 2006, 2008 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., 51 Franklin Street, Fifth Floor, |
| Boston, MA 02110-1301, USA. */ |
| |
| #include "defs.h" |
| #include "osabi.h" |
| #include "regcache.h" |
| #include "regset.h" |
| |
| #include "gdb_assert.h" |
| #include "gdb_string.h" |
| |
| #include "hppa-tdep.h" |
| |
| /* Core file support. */ |
| |
| /* Sizeof `struct reg' in <machine/reg.h>. */ |
| #define HPPABSD_SIZEOF_GREGS (34 * 4) |
| |
| /* Supply register REGNUM from the buffer specified by GREGS and LEN |
| in the general-purpose register set REGSET to register cache |
| REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */ |
| |
| static void |
| hppabsd_supply_gregset (const struct regset *regset, struct regcache *regcache, |
| int regnum, const void *gregs, size_t len) |
| { |
| const gdb_byte *regs = gregs; |
| size_t offset; |
| int i; |
| |
| gdb_assert (len >= HPPABSD_SIZEOF_GREGS); |
| |
| for (i = HPPA_R1_REGNUM, offset = 4; i <= HPPA_R31_REGNUM; i++, offset += 4) |
| { |
| if (regnum == -1 || regnum == i) |
| regcache_raw_supply (regcache, i, regs + offset); |
| } |
| |
| if (regnum == -1 || regnum == HPPA_SAR_REGNUM) |
| regcache_raw_supply (regcache, HPPA_SAR_REGNUM, regs); |
| if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM) |
| regcache_raw_supply (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 32 * 4); |
| if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM) |
| regcache_raw_supply (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 33 * 4); |
| } |
| |
| /* OpenBSD/hppa register set. */ |
| |
| static struct regset hppabsd_gregset = |
| { |
| NULL, |
| hppabsd_supply_gregset |
| }; |
| |
| /* Return the appropriate register set for the core section identified |
| by SECT_NAME and SECT_SIZE. */ |
| |
| static const struct regset * |
| hppaobsd_regset_from_core_section (struct gdbarch *gdbarch, |
| const char *sect_name, size_t sect_size) |
| { |
| if (strcmp (sect_name, ".reg") == 0 && sect_size >= HPPABSD_SIZEOF_GREGS) |
| return &hppabsd_gregset; |
| |
| return NULL; |
| } |
| |
| |
| void hppabsd_init_abi (struct gdbarch_info, struct gdbarch *); |
| |
| void |
| hppaobsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) |
| { |
| /* Obviously OpenBSD is BSD-based. */ |
| hppabsd_init_abi (info, gdbarch); |
| |
| /* Core file support. */ |
| set_gdbarch_regset_from_core_section |
| (gdbarch, hppaobsd_regset_from_core_section); |
| |
| } |
| |
| |
| /* OpenBSD uses uses the traditional NetBSD core file format, even for |
| ports that use ELF. */ |
| #define GDB_OSABI_NETBSD_CORE GDB_OSABI_OPENBSD_ELF |
| |
| static enum gdb_osabi |
| hppaobsd_core_osabi_sniffer (bfd *abfd) |
| { |
| if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0) |
| return GDB_OSABI_NETBSD_CORE; |
| |
| return GDB_OSABI_UNKNOWN; |
| } |
| |
| |
| /* Provide a prototype to silence -Wmissing-prototypes. */ |
| void _initialize_hppabsd_tdep (void); |
| |
| void |
| _initialize_hppabsd_tdep (void) |
| { |
| /* BFD doesn't set a flavour for NetBSD style a.out core files. */ |
| gdbarch_register_osabi_sniffer (bfd_arch_hppa, bfd_target_unknown_flavour, |
| hppaobsd_core_osabi_sniffer); |
| |
| gdbarch_register_osabi (bfd_arch_hppa, 0, GDB_OSABI_OPENBSD_ELF, |
| hppaobsd_init_abi); |
| } |