/* Target-dependent code for NetBSD/hppa
|
/* Target-dependent code for NetBSD/hppa
|
|
|
Copyright (C) 2008 Free Software Foundation, Inc.
|
Copyright (C) 2008 Free Software Foundation, Inc.
|
|
|
This file is part of GDB.
|
This file is part of GDB.
|
|
|
This program is free software; you can redistribute it and/or modify
|
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
|
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 2 of the License, or
|
(at your option) any later version.
|
(at your option) any later version.
|
|
|
This program is distributed in the hope that it will be useful,
|
This program is distributed in the hope that it will be useful,
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
GNU General Public License for more details.
|
GNU General Public License for more details.
|
|
|
You should have received a copy of the GNU General Public License
|
You should have received a copy of the GNU General Public License
|
along with this program; if not, write to the Free Software
|
along with this program; if not, write to the Free Software
|
Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
Boston, MA 02110-1301, USA. */
|
Boston, MA 02110-1301, USA. */
|
|
|
#include "defs.h"
|
#include "defs.h"
|
#include "osabi.h"
|
#include "osabi.h"
|
#include "regcache.h"
|
#include "regcache.h"
|
#include "regset.h"
|
#include "regset.h"
|
|
|
#include "trad-frame.h"
|
#include "trad-frame.h"
|
#include "tramp-frame.h"
|
#include "tramp-frame.h"
|
|
|
#include "gdb_assert.h"
|
#include "gdb_assert.h"
|
#include "gdb_string.h"
|
#include "gdb_string.h"
|
|
|
#include "hppa-tdep.h"
|
#include "hppa-tdep.h"
|
|
|
/* From <machine/mcontext.h>. */
|
/* From <machine/mcontext.h>. */
|
static int hppanbsd_mc_reg_offset[] =
|
static int hppanbsd_mc_reg_offset[] =
|
{
|
{
|
/* r0 ... r31 */
|
/* r0 ... r31 */
|
-1, 1 * 4, 2 * 4, 3 * 4,
|
-1, 1 * 4, 2 * 4, 3 * 4,
|
4 * 4, 5 * 4, 6 * 4, 7 * 4,
|
4 * 4, 5 * 4, 6 * 4, 7 * 4,
|
8 * 4, 9 * 4, 10 * 4, 11 * 4,
|
8 * 4, 9 * 4, 10 * 4, 11 * 4,
|
12 * 4, 13 * 4, 14 * 4, 15 * 4,
|
12 * 4, 13 * 4, 14 * 4, 15 * 4,
|
16 * 4, 17 * 4, 18 * 4, 19 * 4,
|
16 * 4, 17 * 4, 18 * 4, 19 * 4,
|
20 * 4, 21 * 4, 22 * 4, 23 * 4,
|
20 * 4, 21 * 4, 22 * 4, 23 * 4,
|
24 * 4, 25 * 4, 26 * 4, 27 * 4,
|
24 * 4, 25 * 4, 26 * 4, 27 * 4,
|
28 * 4, 29 * 4, 30 * 4, 31 * 4,
|
28 * 4, 29 * 4, 30 * 4, 31 * 4,
|
|
|
32 * 4, /* HPPA_SAR_REGNUM */
|
32 * 4, /* HPPA_SAR_REGNUM */
|
35 * 4, /* HPPA_PCOQ_HEAD_REGNUM */
|
35 * 4, /* HPPA_PCOQ_HEAD_REGNUM */
|
33 * 4, /* HPPA_PCSQ_HEAD_REGNUM */
|
33 * 4, /* HPPA_PCSQ_HEAD_REGNUM */
|
36 * 4, /* HPPA_PCOQ_TAIL_REGNUM */
|
36 * 4, /* HPPA_PCOQ_TAIL_REGNUM */
|
34 * 4, /* HPPA_PCSQ_TAIL_REGNUM */
|
34 * 4, /* HPPA_PCSQ_TAIL_REGNUM */
|
-1, /* HPPA_EIEM_REGNUM */
|
-1, /* HPPA_EIEM_REGNUM */
|
-1, /* HPPA_IIR_REGNUM */
|
-1, /* HPPA_IIR_REGNUM */
|
-1, /* HPPA_ISR_REGNUM */
|
-1, /* HPPA_ISR_REGNUM */
|
-1, /* HPPA_IOR_REGNUM */
|
-1, /* HPPA_IOR_REGNUM */
|
0 * 4, /* HPPA_IPSW_REGNUM */
|
0 * 4, /* HPPA_IPSW_REGNUM */
|
-1, /* spare? */
|
-1, /* spare? */
|
41 * 4, /* HPPA_SR4_REGNUM */
|
41 * 4, /* HPPA_SR4_REGNUM */
|
37 * 4, /* sr0 */
|
37 * 4, /* sr0 */
|
38 * 4, /* sr1 */
|
38 * 4, /* sr1 */
|
39 * 4, /* sr2 */
|
39 * 4, /* sr2 */
|
40 * 4, /* sr3 */
|
40 * 4, /* sr3 */
|
|
|
/* more tbd */
|
/* more tbd */
|
};
|
};
|
|
|
static void hppanbsd_sigtramp_cache_init (const struct tramp_frame *,
|
static void hppanbsd_sigtramp_cache_init (const struct tramp_frame *,
|
struct frame_info *,
|
struct frame_info *,
|
struct trad_frame_cache *,
|
struct trad_frame_cache *,
|
CORE_ADDR);
|
CORE_ADDR);
|
|
|
static const struct tramp_frame hppanbsd_sigtramp_si4 =
|
static const struct tramp_frame hppanbsd_sigtramp_si4 =
|
{
|
{
|
SIGTRAMP_FRAME,
|
SIGTRAMP_FRAME,
|
4,
|
4,
|
{
|
{
|
{ 0xc7d7c012, -1 }, /* bb,>=,n %arg3, 30, 1f */
|
{ 0xc7d7c012, -1 }, /* bb,>=,n %arg3, 30, 1f */
|
{ 0xd6e01c1e, -1 }, /* depwi 0,31,2,%arg3 */
|
{ 0xd6e01c1e, -1 }, /* depwi 0,31,2,%arg3 */
|
{ 0x0ee81093, -1 }, /* ldw 4(%arg3), %r19 */
|
{ 0x0ee81093, -1 }, /* ldw 4(%arg3), %r19 */
|
{ 0x0ee01097, -1 }, /* ldw 0(%arg3), %arg3 */
|
{ 0x0ee01097, -1 }, /* ldw 0(%arg3), %arg3 */
|
/* 1: */
|
/* 1: */
|
{ 0xe8404000, -1 }, /* blr %r0, %rp */
|
{ 0xe8404000, -1 }, /* blr %r0, %rp */
|
{ 0xeae0c002, -1 }, /* bv,n %r0(%arg3) */
|
{ 0xeae0c002, -1 }, /* bv,n %r0(%arg3) */
|
{ 0x08000240, -1 }, /* nop */
|
{ 0x08000240, -1 }, /* nop */
|
|
|
{ 0x0803025a, -1 }, /* copy %r3, %arg0 */
|
{ 0x0803025a, -1 }, /* copy %r3, %arg0 */
|
{ 0x20200801, -1 }, /* ldil -40000000, %r1 */
|
{ 0x20200801, -1 }, /* ldil -40000000, %r1 */
|
{ 0xe420e008, -1 }, /* be,l 4(%sr7, %r1), %sr0, %r31 */
|
{ 0xe420e008, -1 }, /* be,l 4(%sr7, %r1), %sr0, %r31 */
|
{ 0x34160268, -1 }, /* ldi 134, %t1 ; SYS_setcontext */
|
{ 0x34160268, -1 }, /* ldi 134, %t1 ; SYS_setcontext */
|
|
|
{ 0x081c025a, -1 }, /* copy ret0, %arg0 */
|
{ 0x081c025a, -1 }, /* copy ret0, %arg0 */
|
{ 0x20200801, -1 }, /* ldil -40000000, %r1 */
|
{ 0x20200801, -1 }, /* ldil -40000000, %r1 */
|
{ 0xe420e008, -1 }, /* be,l 4(%sr7, %r1), %sr0, %r31 */
|
{ 0xe420e008, -1 }, /* be,l 4(%sr7, %r1), %sr0, %r31 */
|
{ 0x34160002, -1 }, /* ldi 1, %t1 ; SYS_exit */
|
{ 0x34160002, -1 }, /* ldi 1, %t1 ; SYS_exit */
|
{ TRAMP_SENTINEL_INSN, -1 }
|
{ TRAMP_SENTINEL_INSN, -1 }
|
},
|
},
|
hppanbsd_sigtramp_cache_init
|
hppanbsd_sigtramp_cache_init
|
};
|
};
|
|
|
|
|
static void
|
static void
|
hppanbsd_sigtramp_cache_init (const struct tramp_frame *self,
|
hppanbsd_sigtramp_cache_init (const struct tramp_frame *self,
|
struct frame_info *next_frame,
|
struct frame_info *next_frame,
|
struct trad_frame_cache *this_cache,
|
struct trad_frame_cache *this_cache,
|
CORE_ADDR func)
|
CORE_ADDR func)
|
{
|
{
|
struct gdbarch *gdbarch = get_frame_arch (next_frame);
|
struct gdbarch *gdbarch = get_frame_arch (next_frame);
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
CORE_ADDR sp = frame_unwind_register_unsigned (next_frame, HPPA_SP_REGNUM);
|
CORE_ADDR sp = frame_unwind_register_unsigned (next_frame, HPPA_SP_REGNUM);
|
CORE_ADDR base;
|
CORE_ADDR base;
|
int *reg_offset;
|
int *reg_offset;
|
int num_regs;
|
int num_regs;
|
int i;
|
int i;
|
|
|
reg_offset = hppanbsd_mc_reg_offset;
|
reg_offset = hppanbsd_mc_reg_offset;
|
num_regs = ARRAY_SIZE (hppanbsd_mc_reg_offset);
|
num_regs = ARRAY_SIZE (hppanbsd_mc_reg_offset);
|
|
|
/* frame pointer */
|
/* frame pointer */
|
base = sp - 0x280;
|
base = sp - 0x280;
|
/* offsetof(struct sigframe_siginfo, sf_uc) = 128 */
|
/* offsetof(struct sigframe_siginfo, sf_uc) = 128 */
|
base += 128;
|
base += 128;
|
/* offsetof(ucontext_t, uc_mcontext) == 40 */
|
/* offsetof(ucontext_t, uc_mcontext) == 40 */
|
base += 40;
|
base += 40;
|
|
|
for (i = 0; i < num_regs; i++)
|
for (i = 0; i < num_regs; i++)
|
if (reg_offset[i] != -1)
|
if (reg_offset[i] != -1)
|
trad_frame_set_reg_addr (this_cache, i, base + reg_offset[i]);
|
trad_frame_set_reg_addr (this_cache, i, base + reg_offset[i]);
|
|
|
/* Construct the frame ID using the function start. */
|
/* Construct the frame ID using the function start. */
|
trad_frame_set_id (this_cache, frame_id_build (sp, func));
|
trad_frame_set_id (this_cache, frame_id_build (sp, func));
|
}
|
}
|
|
|
/* Core file support. */
|
/* Core file support. */
|
|
|
/* Sizeof `struct reg' in <machine/reg.h>. */
|
/* Sizeof `struct reg' in <machine/reg.h>. */
|
#define HPPANBSD_SIZEOF_GREGS (44 * 4)
|
#define HPPANBSD_SIZEOF_GREGS (44 * 4)
|
|
|
static int hppanbsd_reg_offset[] =
|
static int hppanbsd_reg_offset[] =
|
{
|
{
|
/* r0 ... r31 */
|
/* r0 ... r31 */
|
-1, 1 * 4, 2 * 4, 3 * 4,
|
-1, 1 * 4, 2 * 4, 3 * 4,
|
4 * 4, 5 * 4, 6 * 4, 7 * 4,
|
4 * 4, 5 * 4, 6 * 4, 7 * 4,
|
8 * 4, 9 * 4, 10 * 4, 11 * 4,
|
8 * 4, 9 * 4, 10 * 4, 11 * 4,
|
12 * 4, 13 * 4, 14 * 4, 15 * 4,
|
12 * 4, 13 * 4, 14 * 4, 15 * 4,
|
16 * 4, 17 * 4, 18 * 4, 19 * 4,
|
16 * 4, 17 * 4, 18 * 4, 19 * 4,
|
20 * 4, 21 * 4, 22 * 4, 23 * 4,
|
20 * 4, 21 * 4, 22 * 4, 23 * 4,
|
24 * 4, 25 * 4, 26 * 4, 27 * 4,
|
24 * 4, 25 * 4, 26 * 4, 27 * 4,
|
28 * 4, 29 * 4, 30 * 4, 31 * 4,
|
28 * 4, 29 * 4, 30 * 4, 31 * 4,
|
|
|
32 * 4, /* HPPA_SAR_REGNUM */
|
32 * 4, /* HPPA_SAR_REGNUM */
|
35 * 4, /* HPPA_PCOQ_HEAD_REGNUM */
|
35 * 4, /* HPPA_PCOQ_HEAD_REGNUM */
|
33 * 4, /* HPPA_PCSQ_HEAD_REGNUM */
|
33 * 4, /* HPPA_PCSQ_HEAD_REGNUM */
|
36 * 4, /* HPPA_PCOQ_TAIL_REGNUM */
|
36 * 4, /* HPPA_PCOQ_TAIL_REGNUM */
|
34 * 4, /* HPPA_PCSQ_TAIL_REGNUM */
|
34 * 4, /* HPPA_PCSQ_TAIL_REGNUM */
|
-1, /* HPPA_EIEM_REGNUM */
|
-1, /* HPPA_EIEM_REGNUM */
|
-1, /* HPPA_IIR_REGNUM */
|
-1, /* HPPA_IIR_REGNUM */
|
-1, /* HPPA_ISR_REGNUM */
|
-1, /* HPPA_ISR_REGNUM */
|
-1, /* HPPA_IOR_REGNUM */
|
-1, /* HPPA_IOR_REGNUM */
|
0 * 4, /* HPPA_IPSW_REGNUM */
|
0 * 4, /* HPPA_IPSW_REGNUM */
|
};
|
};
|
|
|
/* Supply register REGNUM from the buffer specified by GREGS and LEN
|
/* Supply register REGNUM from the buffer specified by GREGS and LEN
|
in the general-purpose register set REGSET to register cache
|
in the general-purpose register set REGSET to register cache
|
REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
|
REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
|
|
|
static void
|
static void
|
hppanbsd_supply_gregset (const struct regset *regset, struct regcache *regcache,
|
hppanbsd_supply_gregset (const struct regset *regset, struct regcache *regcache,
|
int regnum, const void *gregs, size_t len)
|
int regnum, const void *gregs, size_t len)
|
{
|
{
|
const gdb_byte *regs = gregs;
|
const gdb_byte *regs = gregs;
|
size_t offset;
|
size_t offset;
|
int i;
|
int i;
|
|
|
gdb_assert (len >= HPPANBSD_SIZEOF_GREGS);
|
gdb_assert (len >= HPPANBSD_SIZEOF_GREGS);
|
|
|
for (i = 0; i < ARRAY_SIZE (hppanbsd_reg_offset); i++)
|
for (i = 0; i < ARRAY_SIZE (hppanbsd_reg_offset); i++)
|
if (hppanbsd_reg_offset[i] != -1)
|
if (hppanbsd_reg_offset[i] != -1)
|
if (regnum == -1 || regnum == i)
|
if (regnum == -1 || regnum == i)
|
regcache_raw_supply (regcache, i, regs + hppanbsd_reg_offset[i]);
|
regcache_raw_supply (regcache, i, regs + hppanbsd_reg_offset[i]);
|
}
|
}
|
|
|
/* NetBSD/hppa register set. */
|
/* NetBSD/hppa register set. */
|
|
|
static struct regset hppanbsd_gregset =
|
static struct regset hppanbsd_gregset =
|
{
|
{
|
NULL,
|
NULL,
|
hppanbsd_supply_gregset
|
hppanbsd_supply_gregset
|
};
|
};
|
|
|
/* Return the appropriate register set for the core section identified
|
/* Return the appropriate register set for the core section identified
|
by SECT_NAME and SECT_SIZE. */
|
by SECT_NAME and SECT_SIZE. */
|
|
|
static const struct regset *
|
static const struct regset *
|
hppanbsd_regset_from_core_section (struct gdbarch *gdbarch,
|
hppanbsd_regset_from_core_section (struct gdbarch *gdbarch,
|
const char *sect_name, size_t sect_size)
|
const char *sect_name, size_t sect_size)
|
{
|
{
|
if (strcmp (sect_name, ".reg") == 0 && sect_size >= HPPANBSD_SIZEOF_GREGS)
|
if (strcmp (sect_name, ".reg") == 0 && sect_size >= HPPANBSD_SIZEOF_GREGS)
|
return &hppanbsd_gregset;
|
return &hppanbsd_gregset;
|
|
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
void hppabsd_init_abi (struct gdbarch_info, struct gdbarch *);
|
void hppabsd_init_abi (struct gdbarch_info, struct gdbarch *);
|
|
|
static void
|
static void
|
hppanbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
|
hppanbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
|
{
|
{
|
/* Obviously NetBSD is BSD-based. */
|
/* Obviously NetBSD is BSD-based. */
|
hppabsd_init_abi (info, gdbarch);
|
hppabsd_init_abi (info, gdbarch);
|
|
|
/* Core file support. */
|
/* Core file support. */
|
set_gdbarch_regset_from_core_section
|
set_gdbarch_regset_from_core_section
|
(gdbarch, hppanbsd_regset_from_core_section);
|
(gdbarch, hppanbsd_regset_from_core_section);
|
|
|
tramp_frame_prepend_unwinder (gdbarch, &hppanbsd_sigtramp_si4);
|
tramp_frame_prepend_unwinder (gdbarch, &hppanbsd_sigtramp_si4);
|
}
|
}
|
|
|
|
|
/* Provide a prototype to silence -Wmissing-prototypes. */
|
/* Provide a prototype to silence -Wmissing-prototypes. */
|
void _initialize_hppabsd_tdep (void);
|
void _initialize_hppabsd_tdep (void);
|
|
|
void
|
void
|
_initialize_hppanbsd_tdep (void)
|
_initialize_hppanbsd_tdep (void)
|
{
|
{
|
gdbarch_register_osabi (bfd_arch_hppa, 0, GDB_OSABI_NETBSD_ELF,
|
gdbarch_register_osabi (bfd_arch_hppa, 0, GDB_OSABI_NETBSD_ELF,
|
hppanbsd_init_abi);
|
hppanbsd_init_abi);
|
}
|
}
|
|
|
