/* Target-dependent code for HP PA-RISC BSD's.
- Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+ Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010
+ Free Software Foundation, Inc.
This file is part of GDB.
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 "hppabsd-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;
-}
-\f
-
-CORE_ADDR
-hppabsd_find_global_pointer (struct value *function)
+static CORE_ADDR
+hppabsd_find_global_pointer (struct gdbarch *gdbarch, struct value *function)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
CORE_ADDR faddr = value_as_address (function);
struct obj_section *faddr_sec;
gdb_byte buf[4];
if (faddr & 2)
{
if (target_read_memory ((faddr & ~3) + 4, buf, sizeof buf) == 0)
- return extract_unsigned_integer (buf, sizeof buf);
+ return extract_unsigned_integer (buf, sizeof buf, byte_order);
}
/* If the address is in the .plt section, then the real function
if (sec < faddr_sec->objfile->sections_end)
{
- CORE_ADDR addr = sec->addr;
+ CORE_ADDR addr = obj_section_addr (sec);
+ CORE_ADDR endaddr = obj_section_endaddr (sec);
- while (addr < sec->endaddr)
+ while (addr < endaddr)
{
gdb_byte buf[4];
LONGEST tag;
if (target_read_memory (addr, buf, sizeof buf) != 0)
break;
- tag = extract_signed_integer (buf, sizeof buf);
+ tag = extract_signed_integer (buf, sizeof buf, byte_order);
if (tag == DT_PLTGOT)
{
CORE_ADDR pltgot;
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 = extract_unsigned_integer (buf, sizeof buf,
+ byte_order);
pltgot += ANOFFSET (sec->objfile->section_offsets,
SECT_OFF_TEXT (sec->objfile));
+
return pltgot;
}
}
\f
-static void
+void
hppabsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (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;
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_ilp32_fetch_link_map_offsets);
}
-\f
-
-/* 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;
-}
-\f
-
-/* 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);
-}
projects / deliverable / binutils-gdb.git / blobdiff