/* Target-dependent code for OpenBSD/powerpc.
- Copyright (C) 2004, 2005, 2006 Free Software Foundation, Inc.
+ Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009
+ 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
+ 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,
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. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "arch-utils.h"
-#include "floatformat.h"
#include "frame.h"
#include "frame-unwind.h"
+#include "gdbtypes.h"
#include "osabi.h"
#include "regcache.h"
#include "regset.h"
struct regcache *regcache, int regnum,
const void *gregs, size_t len)
{
- /* FIXME: jimb/2004-05-05: Some PPC variants don't have floating
- point registers. Traditionally, GDB's register set has still
- listed the floating point registers for such machines, so this
- code is harmless. However, the new E500 port actually omits the
- floating point registers entirely from the register set --- they
- don't even have register numbers assigned to them.
-
- It's not clear to me how best to update this code, so this assert
- will alert the first person to encounter the OpenBSD/E500
- combination to the problem. */
- gdb_assert (ppc_floating_point_unit_p (current_gdbarch));
-
ppc_supply_gregset (regset, regcache, regnum, gregs, len);
ppc_supply_fpregset (regset, regcache, regnum, gregs, len);
}
const struct regcache *regcache, int regnum,
void *gregs, size_t len)
{
- /* FIXME: jimb/2004-05-05: Some PPC variants don't have floating
- point registers. Traditionally, GDB's register set has still
- listed the floating point registers for such machines, so this
- code is harmless. However, the new E500 port actually omits the
- floating point registers entirely from the register set --- they
- don't even have register numbers assigned to them.
-
- It's not clear to me how best to update this code, so this assert
- will alert the first person to encounter the OpenBSD/E500
- combination to the problem. */
- gdb_assert (ppc_floating_point_unit_p (current_gdbarch));
-
ppc_collect_gregset (regset, regcache, regnum, gregs, len);
ppc_collect_fpregset (regset, regcache, regnum, gregs, len);
}
};
static int
-ppcobsd_sigtramp_p (struct frame_info *next_frame)
+ppcobsd_sigtramp_frame_sniffer (const struct frame_unwind *self,
+ struct frame_info *this_frame,
+ void **this_cache)
{
- CORE_ADDR pc = frame_pc_unwind (next_frame);
+ CORE_ADDR pc = get_frame_pc (this_frame);
CORE_ADDR start_pc = (pc & ~(ppcobsd_page_size - 1));
const int *offset;
char *name;
gdb_byte buf[2 * PPC_INSN_SIZE];
unsigned long insn;
- if (!safe_frame_unwind_memory (next_frame, start_pc + *offset,
+ if (!safe_frame_unwind_memory (this_frame, start_pc + *offset,
buf, sizeof buf))
continue;
}
static struct trad_frame_cache *
-ppcobsd_sigtramp_frame_cache (struct frame_info *next_frame, void **this_cache)
+ppcobsd_sigtramp_frame_cache (struct frame_info *this_frame, void **this_cache)
{
- struct gdbarch *gdbarch = get_frame_arch (next_frame);
+ struct gdbarch *gdbarch = get_frame_arch (this_frame);
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
struct trad_frame_cache *cache;
CORE_ADDR addr, base, func;
if (*this_cache)
return *this_cache;
- cache = trad_frame_cache_zalloc (next_frame);
+ cache = trad_frame_cache_zalloc (this_frame);
*this_cache = cache;
- func = frame_pc_unwind (next_frame);
+ func = get_frame_pc (this_frame);
func &= ~(ppcobsd_page_size - 1);
- if (!safe_frame_unwind_memory (next_frame, func, buf, sizeof buf))
+ if (!safe_frame_unwind_memory (this_frame, func, buf, sizeof buf))
return cache;
/* Calculate the offset where we can find `struct sigcontext'. We
insn = extract_unsigned_integer (buf, PPC_INSN_SIZE);
sigcontext_offset = (0x10000 - (insn & 0x0000ffff)) + 8;
- base = frame_unwind_register_unsigned (next_frame, SP_REGNUM);
+ base = get_frame_register_unsigned (this_frame, gdbarch_sp_regnum (gdbarch));
addr = base + sigcontext_offset + 2 * tdep->wordsize;
for (i = 0; i < ppc_num_gprs; i++, addr += tdep->wordsize)
{
addr += tdep->wordsize;
trad_frame_set_reg_addr (cache, tdep->ppc_ctr_regnum, addr);
addr += tdep->wordsize;
- trad_frame_set_reg_addr (cache, PC_REGNUM, addr); /* SRR0? */
+ trad_frame_set_reg_addr (cache, gdbarch_pc_regnum (gdbarch), addr);
+ /* SRR0? */
addr += tdep->wordsize;
/* Construct the frame ID using the function start. */
}
static void
-ppcobsd_sigtramp_frame_this_id (struct frame_info *next_frame,
+ppcobsd_sigtramp_frame_this_id (struct frame_info *this_frame,
void **this_cache, struct frame_id *this_id)
{
struct trad_frame_cache *cache =
- ppcobsd_sigtramp_frame_cache (next_frame, this_cache);
+ ppcobsd_sigtramp_frame_cache (this_frame, this_cache);
trad_frame_get_id (cache, this_id);
}
-static void
-ppcobsd_sigtramp_frame_prev_register (struct frame_info *next_frame,
- void **this_cache, int regnum,
- int *optimizedp, enum lval_type *lvalp,
- CORE_ADDR *addrp, int *realnump,
- gdb_byte *valuep)
+static struct value *
+ppcobsd_sigtramp_frame_prev_register (struct frame_info *this_frame,
+ void **this_cache, int regnum)
{
struct trad_frame_cache *cache =
- ppcobsd_sigtramp_frame_cache (next_frame, this_cache);
+ ppcobsd_sigtramp_frame_cache (this_frame, this_cache);
- trad_frame_get_register (cache, next_frame, regnum,
- optimizedp, lvalp, addrp, realnump, valuep);
+ return trad_frame_get_register (cache, this_frame, regnum);
}
static const struct frame_unwind ppcobsd_sigtramp_frame_unwind = {
SIGTRAMP_FRAME,
ppcobsd_sigtramp_frame_this_id,
- ppcobsd_sigtramp_frame_prev_register
+ ppcobsd_sigtramp_frame_prev_register,
+ NULL,
+ ppcobsd_sigtramp_frame_sniffer
};
-
-static const struct frame_unwind *
-ppcobsd_sigtramp_frame_sniffer (struct frame_info *next_frame)
-{
- if (ppcobsd_sigtramp_p (next_frame))
- return &ppcobsd_sigtramp_frame_unwind;
-
- return NULL;
-}
\f
static void
{
/* OpenBSD doesn't support the 128-bit `long double' from the psABI. */
set_gdbarch_long_double_bit (gdbarch, 64);
- set_gdbarch_long_double_format (gdbarch, &floatformat_ieee_double_big);
+ set_gdbarch_long_double_format (gdbarch, floatformats_ieee_double);
/* OpenBSD currently uses a broken GCC. */
set_gdbarch_return_value (gdbarch, ppc_sysv_abi_broken_return_value);
set_gdbarch_regset_from_core_section
(gdbarch, ppcobsd_regset_from_core_section);
- frame_unwind_append_sniffer (gdbarch, ppcobsd_sigtramp_frame_sniffer);
+ frame_unwind_append_unwinder (gdbarch, &ppcobsd_sigtramp_frame_unwind);
}
\f
{
/* General-purpose registers. */
ppcobsd_reg_offsets.r0_offset = 0;
+ ppcobsd_reg_offsets.gpr_size = 4;
+ ppcobsd_reg_offsets.xr_size = 4;
ppcobsd_reg_offsets.pc_offset = 384;
ppcobsd_reg_offsets.ps_offset = 388;
ppcobsd_reg_offsets.cr_offset = 392;
/* Floating-point registers. */
ppcobsd_reg_offsets.f0_offset = 0;
ppcobsd_reg_offsets.fpscr_offset = 256;
+ ppcobsd_reg_offsets.fpscr_size = 4;
}
}
projects / deliverable / binutils-gdb.git / blobdiff