/* 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); }