mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-29 20:23:28 +08:00
127 lines
3.5 KiB
C
127 lines
3.5 KiB
C
/* Target-dependent code for OpenBSD/hppa
|
||
|
||
Copyright (C) 2004, 2005, 2006, 2008, 2009, 2010
|
||
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 3 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, see <http://www.gnu.org/licenses/>. */
|
||
|
||
#include "defs.h"
|
||
#include "osabi.h"
|
||
#include "regcache.h"
|
||
#include "regset.h"
|
||
|
||
#include "gdb_assert.h"
|
||
#include "gdb_string.h"
|
||
|
||
#include "hppa-tdep.h"
|
||
#include "hppabsd-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;
|
||
}
|
||
|
||
|
||
static 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);
|
||
}
|