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Add NetBSD/hppa target and host support.

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* hppabsd-tdep.c (hppabsd_supply_gregset): Move to ...
	(hppabsd_gregset): Move to ...
	(hppabsd_regset_from_core_section): Rename
	hppaobsd_regset_from_core_section and move to ...
	(hppabsd_find_global_pointer): Update comment.
	(hppabsd_init_abi): Make global. Do not register
	hppabsd_regset_from_core_section.
	(hppabsd_core_osabi_sniffer): Rename hppaobsd_core_osabi_sniffer and
	move to ...
	(_initialize_hppabsd_tdep): Move to ...
	* hppaobsd-tdep.c: ... here. New file.
	* hppnbsd-tdep.c: New file.
	* hppnbsd-nat.c: New file.
        * Makefile.in (ALL_TARGET_OBS): Add hppanbsd-tdep.o and hppaobsd-tdep.o.
	(ALLDEPFILES): Add hppabsd-nat.c and hppabsd-tdep.c.
        (hppabsd-nat.o, hppabsd-tdep.o): New dependencies.
        (hppabsd-tdep.o, hppaobsd-tdep.o): Update dependencies.
	* configure.host (hppa*-*-netbsd*): New entry.
	* configure.tgt (hppa*-*-netbsd*): New entry.
	(hppa*-*-openbsd*): Update.
	* NEWS (New native configuration): Mention NetBSD/hppa.
	(New targets): Mention NetBSD/hppa.
This commit is contained in:
Nick Hudson
2008-01-19 15:03:50 +00:00
parent 2a25a5baa5
commit af5ca30dc3
10 changed files with 661 additions and 107 deletions
Download Patch File Download Diff File Expand all files Collapse all files

104
gdb/hppabsd-tdep.c
View File

@ -18,79 +18,15 @@
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "arch-utils.h"
#include "gdbtypes.h"
#include "symtab.h"
#include "objfiles.h"
#include "osabi.h"
#include "regcache.h"
#include "regset.h"
#include "target.h"
#include "value.h"
#include "gdb_assert.h"
#include "gdb_string.h"
#include "elf/common.h"
#include "hppa-tdep.h"
#include "solib-svr4.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 *
hppabsd_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;
}
CORE_ADDR
hppabsd_find_global_pointer (struct value *function)
{
@ -143,11 +79,12 @@ hppabsd_find_global_pointer (struct value *function)
if (target_read_memory (addr + 4, buf, sizeof buf) != 0)
break;
/* The OpenBSD ld.so doesn't relocate DT_PLTGOT, so
/* The NetBSD/OpenBSD ld.so doesn't relocate DT_PLTGOT, so
we have to do it ourselves. */
pltgot = extract_unsigned_integer (buf, sizeof buf);
pltgot += ANOFFSET (sec->objfile->section_offsets,
SECT_OFF_TEXT (sec->objfile));
return pltgot;
}
@ -163,7 +100,7 @@ hppabsd_find_global_pointer (struct value *function)
}
static void
void
hppabsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
@ -172,10 +109,6 @@ hppabsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
set_gdbarch_long_double_bit (gdbarch, 64);
set_gdbarch_long_double_format (gdbarch, floatformats_ieee_double);
/* Core file support. */
set_gdbarch_regset_from_core_section
(gdbarch, hppabsd_regset_from_core_section);
/* OpenBSD and NetBSD use ELF. */
tdep->is_elf = 1;
tdep->find_global_pointer = hppabsd_find_global_pointer;
@ -186,34 +119,3 @@ hppabsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_ilp32_fetch_link_map_offsets);
}
/* 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
hppabsd_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,
hppabsd_core_osabi_sniffer);
gdbarch_register_osabi (bfd_arch_hppa, 0, GDB_OSABI_NETBSD_ELF,
hppabsd_init_abi);
gdbarch_register_osabi (bfd_arch_hppa, 0, GDB_OSABI_OPENBSD_ELF,
hppabsd_init_abi);
}