822c97322c
Use regcache_raw_collect instead of regcache_collect. * regcache.h (regcache_collect): Delete declaration. * regcache.c (regcache_colect): Delete function. * win32-nat.c (do_child_store_inferior_registers): Update. * sol-thread.c (sol_thread_store_registers): Update. * shnbsd-tdep.c (shnbsd_fill_reg): Update. * rs6000-nat.c (store_register): Update. * remote.c (store_register_using_P, remote_store_registers): Update. * ppcnbsd-tdep.c (ppcnbsd_fill_reg): Update. * ppc-linux-nat.c (store_altivec_register, store_spe_register) (fill_vrregset, store_spe_registers, fill_gregset) (fill_gregset): Update. * nto-procfs.c (procfs_store_registers): Update. * mipsnbsd-tdep.c (mipsnbsd_fill_reg): Update. * mips-linux-tdep.c (fill_gregset, mips64_fill_gregset): Update. * m68klinux-nat.c (store_register, fill_gregset): Update. * m68k-tdep.c (fill_gregset): Update. * infptrace.c (store_register): Update. * i386-nto-tdep.c (i386nto_regset_fill): Update. * i386-linux-nat.c (store_register, fill_gregset): Update. * hppa-linux-nat.c (fill_gregset): Update. * go32-nat.c (store_register): Update. * armnbsd-nat.c (store_register, store_regs, store_fp_register) (store_fp_regs): Update. * arm-linux-nat.c (store_nwfpe_single, store_nwfpe_double) (store_nwfpe_extended, store_fpregister, store_fpregs) (store_register, store_regs, fill_gregset, fill_fpregset): Update. * alpha-tdep.c (alpha_fill_int_regs, alpha_fill_fp_regs): Update. * aix-thread.c (fill_gprs64, fill_fprs, fill_sprs64, fill_sprs32) (store_regs_user_thread, store_regs_kernel_thread): Update.
341 lines
11 KiB
C
341 lines
11 KiB
C
/* Target-dependent code for PowerPC systems running NetBSD.
|
|
|
|
Copyright 2002, 2003, 2004 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 "tramp-frame.h"
|
|
#include "trad-frame.h"
|
|
#include "gdb_assert.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 < ppc_num_gprs; i++)
|
|
{
|
|
if (regno == tdep->ppc_gp0_regnum + i || regno == -1)
|
|
regcache_raw_supply (current_regcache, tdep->ppc_gp0_regnum + i,
|
|
regs + REG_FIXREG_OFFSET (i));
|
|
}
|
|
|
|
if (regno == tdep->ppc_lr_regnum || regno == -1)
|
|
regcache_raw_supply (current_regcache, tdep->ppc_lr_regnum,
|
|
regs + REG_LR_OFFSET);
|
|
|
|
if (regno == tdep->ppc_cr_regnum || regno == -1)
|
|
regcache_raw_supply (current_regcache, tdep->ppc_cr_regnum,
|
|
regs + REG_CR_OFFSET);
|
|
|
|
if (regno == tdep->ppc_xer_regnum || regno == -1)
|
|
regcache_raw_supply (current_regcache, tdep->ppc_xer_regnum,
|
|
regs + REG_XER_OFFSET);
|
|
|
|
if (regno == tdep->ppc_ctr_regnum || regno == -1)
|
|
regcache_raw_supply (current_regcache, tdep->ppc_ctr_regnum,
|
|
regs + REG_CTR_OFFSET);
|
|
|
|
if (regno == PC_REGNUM || regno == -1)
|
|
regcache_raw_supply (current_regcache, 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 < ppc_num_gprs; i++)
|
|
{
|
|
if (regno == tdep->ppc_gp0_regnum + i || regno == -1)
|
|
regcache_raw_collect (current_regcache, tdep->ppc_gp0_regnum + i,
|
|
regs + REG_FIXREG_OFFSET (i));
|
|
}
|
|
|
|
if (regno == tdep->ppc_lr_regnum || regno == -1)
|
|
regcache_raw_collect (current_regcache, tdep->ppc_lr_regnum,
|
|
regs + REG_LR_OFFSET);
|
|
|
|
if (regno == tdep->ppc_cr_regnum || regno == -1)
|
|
regcache_raw_collect (current_regcache, tdep->ppc_cr_regnum,
|
|
regs + REG_CR_OFFSET);
|
|
|
|
if (regno == tdep->ppc_xer_regnum || regno == -1)
|
|
regcache_raw_collect (current_regcache, tdep->ppc_xer_regnum,
|
|
regs + REG_XER_OFFSET);
|
|
|
|
if (regno == tdep->ppc_ctr_regnum || regno == -1)
|
|
regcache_raw_collect (current_regcache, tdep->ppc_ctr_regnum,
|
|
regs + REG_CTR_OFFSET);
|
|
|
|
if (regno == PC_REGNUM || regno == -1)
|
|
regcache_raw_collect (current_regcache, PC_REGNUM, regs + REG_PC_OFFSET);
|
|
}
|
|
|
|
void
|
|
ppcnbsd_supply_fpreg (char *fpregs, int regno)
|
|
{
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
|
|
int i;
|
|
|
|
/* 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 NetBSD/E500
|
|
combination to the problem. */
|
|
gdb_assert (ppc_floating_point_unit_p (current_gdbarch));
|
|
|
|
for (i = 0; i < ppc_num_fprs; i++)
|
|
{
|
|
if (regno == tdep->ppc_fp0_regnum + i || regno == -1)
|
|
regcache_raw_supply (current_regcache, tdep->ppc_fp0_regnum + i,
|
|
fpregs + FPREG_FPR_OFFSET (i));
|
|
}
|
|
|
|
if (regno == tdep->ppc_fpscr_regnum || regno == -1)
|
|
regcache_raw_supply (current_regcache, 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;
|
|
|
|
/* 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 NetBSD/E500
|
|
combination to the problem. */
|
|
gdb_assert (ppc_floating_point_unit_p (current_gdbarch));
|
|
|
|
for (i = 0; i < ppc_num_fprs; i++)
|
|
{
|
|
if (regno == tdep->ppc_fp0_regnum + i || regno == -1)
|
|
regcache_raw_collect (current_regcache, tdep->ppc_fp0_regnum + i,
|
|
fpregs + FPREG_FPR_OFFSET (i));
|
|
}
|
|
|
|
if (regno == tdep->ppc_fpscr_regnum || regno == -1)
|
|
regcache_raw_collect (current_regcache, 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 */
|
|
};
|
|
|
|
/* NetBSD is confused. It appears that 1.5 was using the correct SVr4
|
|
convention but, 1.6 switched to the below broken convention. For
|
|
the moment use the broken convention. Ulgh!. */
|
|
|
|
static enum return_value_convention
|
|
ppcnbsd_return_value (struct gdbarch *gdbarch, struct type *valtype,
|
|
struct regcache *regcache, void *readbuf,
|
|
const void *writebuf)
|
|
{
|
|
if ((TYPE_CODE (valtype) == TYPE_CODE_STRUCT
|
|
|| TYPE_CODE (valtype) == TYPE_CODE_UNION)
|
|
&& !((TYPE_LENGTH (valtype) == 16 || TYPE_LENGTH (valtype) == 8)
|
|
&& TYPE_VECTOR (valtype))
|
|
&& !(TYPE_LENGTH (valtype) == 1
|
|
|| TYPE_LENGTH (valtype) == 2
|
|
|| TYPE_LENGTH (valtype) == 4
|
|
|| TYPE_LENGTH (valtype) == 8))
|
|
return RETURN_VALUE_STRUCT_CONVENTION;
|
|
else
|
|
return ppc_sysv_abi_broken_return_value (gdbarch, valtype, regcache,
|
|
readbuf, writebuf);
|
|
}
|
|
|
|
static void
|
|
ppcnbsd_sigtramp_cache_init (const struct tramp_frame *self,
|
|
struct frame_info *next_frame,
|
|
struct trad_frame_cache *this_cache,
|
|
CORE_ADDR func)
|
|
{
|
|
CORE_ADDR base;
|
|
CORE_ADDR offset;
|
|
int i;
|
|
struct gdbarch *gdbarch = get_frame_arch (next_frame);
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
|
|
base = frame_unwind_register_unsigned (next_frame, SP_REGNUM);
|
|
offset = base + 0x18 + 2 * tdep->wordsize;
|
|
for (i = 0; i < ppc_num_gprs; i++)
|
|
{
|
|
int regnum = i + tdep->ppc_gp0_regnum;
|
|
trad_frame_set_reg_addr (this_cache, regnum, offset);
|
|
offset += tdep->wordsize;
|
|
}
|
|
trad_frame_set_reg_addr (this_cache, tdep->ppc_lr_regnum, offset);
|
|
offset += tdep->wordsize;
|
|
trad_frame_set_reg_addr (this_cache, tdep->ppc_cr_regnum, offset);
|
|
offset += tdep->wordsize;
|
|
trad_frame_set_reg_addr (this_cache, tdep->ppc_xer_regnum, offset);
|
|
offset += tdep->wordsize;
|
|
trad_frame_set_reg_addr (this_cache, tdep->ppc_ctr_regnum, offset);
|
|
offset += tdep->wordsize;
|
|
trad_frame_set_reg_addr (this_cache, PC_REGNUM, offset); /* SRR0? */
|
|
offset += tdep->wordsize;
|
|
|
|
/* Construct the frame ID using the function start. */
|
|
trad_frame_set_id (this_cache, frame_id_build (base, func));
|
|
}
|
|
|
|
/* Given the NEXT frame, examine the instructions at and around this
|
|
frame's resume address (aka PC) to see of they look like a signal
|
|
trampoline. Return the address of the trampolines first
|
|
instruction, or zero if it isn't a signal trampoline. */
|
|
|
|
static const struct tramp_frame ppcnbsd_sigtramp = {
|
|
SIGTRAMP_FRAME,
|
|
4, /* insn size */
|
|
{ /* insn */
|
|
{ 0x38610018, -1 }, /* addi r3,r1,24 */
|
|
{ 0x38000127, -1 }, /* li r0,295 */
|
|
{ 0x44000002, -1 }, /* sc */
|
|
{ 0x38000001, -1 }, /* li r0,1 */
|
|
{ 0x44000002, -1 }, /* sc */
|
|
{ TRAMP_SENTINEL_INSN, -1 }
|
|
},
|
|
ppcnbsd_sigtramp_cache_init
|
|
};
|
|
|
|
static void
|
|
ppcnbsd_init_abi (struct gdbarch_info info,
|
|
struct gdbarch *gdbarch)
|
|
{
|
|
/* For NetBSD, this is an on again, off again thing. Some systems
|
|
do use the broken struct convention, and some don't. */
|
|
set_gdbarch_return_value (gdbarch, ppcnbsd_return_value);
|
|
set_solib_svr4_fetch_link_map_offsets (gdbarch,
|
|
nbsd_ilp32_solib_svr4_fetch_link_map_offsets);
|
|
tramp_frame_prepend_unwinder (gdbarch, &ppcnbsd_sigtramp);
|
|
}
|
|
|
|
void
|
|
_initialize_ppcnbsd_tdep (void)
|
|
{
|
|
gdbarch_register_osabi (bfd_arch_powerpc, 0, GDB_OSABI_NETBSD_ELF,
|
|
ppcnbsd_init_abi);
|
|
|
|
deprecated_add_core_fns (&ppcnbsd_core_fns);
|
|
deprecated_add_core_fns (&ppcnbsd_elfcore_fns);
|
|
}
|