516034834f
* d10v-tdep.c (d10v_frame_chain_valid): Remove unnecessary tests. * hppa-tdep.c (hppa_frame_chain_valid): Remove unnecessary test. * blockframe.c: Include "gdbcmd.h" and "command.h". (backtrace_below_main): New variable. (file_frame_chain_valid, func_frame_chain_valid) (nonnull_frame_chain_valid, generic_file_frame_chain_valid) (generic_func_frame_chain_valid): Remove functions. (frame_chain_valid, do_flush_frames_sfunc): New functions. (_initialize_blockframe): New function. * Makefile.in (blockframe.o): Update dependencies. * frame.c (frame_saved_regs_id_unwind, get_prev_frame): Remove FIXME comment. Call frame_chain_valid (). * frame.h: Remove old prototypes. Add prototype for frame_chain_valid and update comments to match. * gdbarch.sh: Change FRAME_CHAIN_VALID into a predicated function. Remove old comment. * gdbarch.h: Regenerated. * gdbarch.c: Regenerated. Plus updates to all other targets not to provide a FRAME_CHAIN_VALID.
226 lines
6.2 KiB
C
226 lines
6.2 KiB
C
/* Target-dependent code for PowerPC systems running NetBSD.
|
|
Copyright 2002, 2003 Free Software Foundation, Inc.
|
|
Contributed by Wasabi Systems, 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., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include "defs.h"
|
|
#include "gdbcore.h"
|
|
#include "regcache.h"
|
|
#include "target.h"
|
|
#include "breakpoint.h"
|
|
#include "value.h"
|
|
#include "osabi.h"
|
|
|
|
#include "ppc-tdep.h"
|
|
#include "ppcnbsd-tdep.h"
|
|
#include "nbsd-tdep.h"
|
|
|
|
#include "solib-svr4.h"
|
|
|
|
#define REG_FIXREG_OFFSET(x) ((x) * 4)
|
|
#define REG_LR_OFFSET (32 * 4)
|
|
#define REG_CR_OFFSET (33 * 4)
|
|
#define REG_XER_OFFSET (34 * 4)
|
|
#define REG_CTR_OFFSET (35 * 4)
|
|
#define REG_PC_OFFSET (36 * 4)
|
|
#define SIZEOF_STRUCT_REG (37 * 4)
|
|
|
|
#define FPREG_FPR_OFFSET(x) ((x) * 8)
|
|
#define FPREG_FPSCR_OFFSET (32 * 8)
|
|
#define SIZEOF_STRUCT_FPREG (33 * 8)
|
|
|
|
void
|
|
ppcnbsd_supply_reg (char *regs, int regno)
|
|
{
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
|
|
int i;
|
|
|
|
for (i = 0; i <= 31; i++)
|
|
{
|
|
if (regno == i || regno == -1)
|
|
supply_register (i, regs + REG_FIXREG_OFFSET (i));
|
|
}
|
|
|
|
if (regno == tdep->ppc_lr_regnum || regno == -1)
|
|
supply_register (tdep->ppc_lr_regnum, regs + REG_LR_OFFSET);
|
|
|
|
if (regno == tdep->ppc_cr_regnum || regno == -1)
|
|
supply_register (tdep->ppc_cr_regnum, regs + REG_CR_OFFSET);
|
|
|
|
if (regno == tdep->ppc_xer_regnum || regno == -1)
|
|
supply_register (tdep->ppc_xer_regnum, regs + REG_XER_OFFSET);
|
|
|
|
if (regno == tdep->ppc_ctr_regnum || regno == -1)
|
|
supply_register (tdep->ppc_ctr_regnum, regs + REG_CTR_OFFSET);
|
|
|
|
if (regno == PC_REGNUM || regno == -1)
|
|
supply_register (PC_REGNUM, regs + REG_PC_OFFSET);
|
|
}
|
|
|
|
void
|
|
ppcnbsd_fill_reg (char *regs, int regno)
|
|
{
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
|
|
int i;
|
|
|
|
for (i = 0; i <= 31; i++)
|
|
{
|
|
if (regno == i || regno == -1)
|
|
regcache_collect (i, regs + REG_FIXREG_OFFSET (i));
|
|
}
|
|
|
|
if (regno == tdep->ppc_lr_regnum || regno == -1)
|
|
regcache_collect (tdep->ppc_lr_regnum, regs + REG_LR_OFFSET);
|
|
|
|
if (regno == tdep->ppc_cr_regnum || regno == -1)
|
|
regcache_collect (tdep->ppc_cr_regnum, regs + REG_CR_OFFSET);
|
|
|
|
if (regno == tdep->ppc_xer_regnum || regno == -1)
|
|
regcache_collect (tdep->ppc_xer_regnum, regs + REG_XER_OFFSET);
|
|
|
|
if (regno == tdep->ppc_ctr_regnum || regno == -1)
|
|
regcache_collect (tdep->ppc_ctr_regnum, regs + REG_CTR_OFFSET);
|
|
|
|
if (regno == PC_REGNUM || regno == -1)
|
|
regcache_collect (PC_REGNUM, regs + REG_PC_OFFSET);
|
|
}
|
|
|
|
void
|
|
ppcnbsd_supply_fpreg (char *fpregs, int regno)
|
|
{
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
|
|
int i;
|
|
|
|
for (i = FP0_REGNUM; i <= FP0_REGNUM + 31; i++)
|
|
{
|
|
if (regno == i || regno == -1)
|
|
supply_register (i, fpregs + FPREG_FPR_OFFSET (i - FP0_REGNUM));
|
|
}
|
|
|
|
if (regno == tdep->ppc_fpscr_regnum || regno == -1)
|
|
supply_register (tdep->ppc_fpscr_regnum, fpregs + FPREG_FPSCR_OFFSET);
|
|
}
|
|
|
|
void
|
|
ppcnbsd_fill_fpreg (char *fpregs, int regno)
|
|
{
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
|
|
int i;
|
|
|
|
for (i = FP0_REGNUM; i <= FP0_REGNUM + 31; i++)
|
|
{
|
|
if (regno == i || regno == -1)
|
|
regcache_collect (i, fpregs + FPREG_FPR_OFFSET (i - FP0_REGNUM));
|
|
}
|
|
|
|
if (regno == tdep->ppc_fpscr_regnum || regno == -1)
|
|
regcache_collect (tdep->ppc_fpscr_regnum, fpregs + FPREG_FPSCR_OFFSET);
|
|
}
|
|
|
|
static void
|
|
fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which,
|
|
CORE_ADDR ignore)
|
|
{
|
|
char *regs, *fpregs;
|
|
|
|
/* We get everything from one section. */
|
|
if (which != 0)
|
|
return;
|
|
|
|
regs = core_reg_sect;
|
|
fpregs = core_reg_sect + SIZEOF_STRUCT_REG;
|
|
|
|
/* Integer registers. */
|
|
ppcnbsd_supply_reg (regs, -1);
|
|
|
|
/* Floating point registers. */
|
|
ppcnbsd_supply_fpreg (fpregs, -1);
|
|
}
|
|
|
|
static void
|
|
fetch_elfcore_registers (char *core_reg_sect, unsigned core_reg_size, int which,
|
|
CORE_ADDR ignore)
|
|
{
|
|
switch (which)
|
|
{
|
|
case 0: /* Integer registers. */
|
|
if (core_reg_size != SIZEOF_STRUCT_REG)
|
|
warning ("Wrong size register set in core file.");
|
|
else
|
|
ppcnbsd_supply_reg (core_reg_sect, -1);
|
|
break;
|
|
|
|
case 2: /* Floating point registers. */
|
|
if (core_reg_size != SIZEOF_STRUCT_FPREG)
|
|
warning ("Wrong size FP register set in core file.");
|
|
else
|
|
ppcnbsd_supply_fpreg (core_reg_sect, -1);
|
|
break;
|
|
|
|
default:
|
|
/* Don't know what kind of register request this is; just ignore it. */
|
|
break;
|
|
}
|
|
}
|
|
|
|
static struct core_fns ppcnbsd_core_fns =
|
|
{
|
|
bfd_target_unknown_flavour, /* core_flavour */
|
|
default_check_format, /* check_format */
|
|
default_core_sniffer, /* core_sniffer */
|
|
fetch_core_registers, /* core_read_registers */
|
|
NULL /* next */
|
|
};
|
|
|
|
static struct core_fns ppcnbsd_elfcore_fns =
|
|
{
|
|
bfd_target_elf_flavour, /* core_flavour */
|
|
default_check_format, /* check_format */
|
|
default_core_sniffer, /* core_sniffer */
|
|
fetch_elfcore_registers, /* core_read_registers */
|
|
NULL /* next */
|
|
};
|
|
|
|
static int
|
|
ppcnbsd_pc_in_sigtramp (CORE_ADDR pc, char *func_name)
|
|
{
|
|
/* FIXME: Need to add support for kernel-provided signal trampolines. */
|
|
return (nbsd_pc_in_sigtramp (pc, func_name));
|
|
}
|
|
|
|
static void
|
|
ppcnbsd_init_abi (struct gdbarch_info info,
|
|
struct gdbarch *gdbarch)
|
|
{
|
|
set_gdbarch_pc_in_sigtramp (gdbarch, ppcnbsd_pc_in_sigtramp);
|
|
|
|
set_solib_svr4_fetch_link_map_offsets (gdbarch,
|
|
nbsd_ilp32_solib_svr4_fetch_link_map_offsets);
|
|
}
|
|
|
|
void
|
|
_initialize_ppcnbsd_tdep (void)
|
|
{
|
|
gdbarch_register_osabi (bfd_arch_powerpc, 0, GDB_OSABI_NETBSD_ELF,
|
|
ppcnbsd_init_abi);
|
|
|
|
add_core_fns (&ppcnbsd_core_fns);
|
|
add_core_fns (&ppcnbsd_elfcore_fns);
|
|
}
|