mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-15 04:31:49 +08:00
28e7fd6234
Two modifications:
1. The addition of 2013 to the copyright year range for every file;
2. The use of a single year range, instead of potentially multiple
year ranges, as approved by the FSF.
128 lines
3.4 KiB
C
128 lines
3.4 KiB
C
/* Target-dependent code for ARM BSD's.
|
|
|
|
Copyright (C) 2006-2013 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 3 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, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#include "defs.h"
|
|
#include "osabi.h"
|
|
#include "regcache.h"
|
|
#include "regset.h"
|
|
|
|
#include "gdb_assert.h"
|
|
#include "gdb_string.h"
|
|
|
|
#include "arm-tdep.h"
|
|
|
|
/* Core file support. */
|
|
|
|
/* Sizeof `struct reg' in <machine/reg.h>. */
|
|
#define ARMBSD_SIZEOF_GREGS (17 * 4)
|
|
|
|
/* Sizeof `struct fpreg' in <machine/reg.h. */
|
|
#define ARMBSD_SIZEOF_FPREGS ((1 + (8 * 3)) * 4)
|
|
|
|
static int
|
|
armbsd_fpreg_offset (int regnum)
|
|
{
|
|
if (regnum == ARM_FPS_REGNUM)
|
|
return 0;
|
|
|
|
return 4 + (regnum - ARM_F0_REGNUM) * 12;
|
|
}
|
|
|
|
/* Supply register REGNUM from the buffer specified by FPREGS and LEN
|
|
in the floating-point register set REGSET to register cache
|
|
REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
|
|
|
|
static void
|
|
armbsd_supply_fpregset (const struct regset *regset,
|
|
struct regcache *regcache,
|
|
int regnum, const void *fpregs, size_t len)
|
|
{
|
|
const gdb_byte *regs = fpregs;
|
|
int i;
|
|
|
|
gdb_assert (len >= ARMBSD_SIZEOF_FPREGS);
|
|
|
|
for (i = ARM_F0_REGNUM; i <= ARM_FPS_REGNUM; i++)
|
|
{
|
|
if (regnum == i || regnum == -1)
|
|
regcache_raw_supply (regcache, i, regs + armbsd_fpreg_offset (i));
|
|
}
|
|
}
|
|
|
|
/* 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
|
|
armbsd_supply_gregset (const struct regset *regset,
|
|
struct regcache *regcache,
|
|
int regnum, const void *gregs, size_t len)
|
|
{
|
|
const gdb_byte *regs = gregs;
|
|
int i;
|
|
|
|
gdb_assert (len >= ARMBSD_SIZEOF_GREGS);
|
|
|
|
for (i = ARM_A1_REGNUM; i <= ARM_PC_REGNUM; i++)
|
|
{
|
|
if (regnum == i || regnum == -1)
|
|
regcache_raw_supply (regcache, i, regs + i * 4);
|
|
}
|
|
|
|
if (regnum == ARM_PS_REGNUM || regnum == -1)
|
|
regcache_raw_supply (regcache, i, regs + 16 * 4);
|
|
|
|
if (len >= ARMBSD_SIZEOF_GREGS + ARMBSD_SIZEOF_FPREGS)
|
|
{
|
|
regs += ARMBSD_SIZEOF_GREGS;
|
|
len -= ARMBSD_SIZEOF_GREGS;
|
|
armbsd_supply_fpregset (regset, regcache, regnum, regs, len);
|
|
}
|
|
}
|
|
|
|
/* ARM register sets. */
|
|
|
|
static struct regset armbsd_gregset =
|
|
{
|
|
NULL,
|
|
armbsd_supply_gregset
|
|
};
|
|
|
|
static struct regset armbsd_fpregset =
|
|
{
|
|
NULL,
|
|
armbsd_supply_fpregset
|
|
};
|
|
|
|
/* Return the appropriate register set for the core section identified
|
|
by SECT_NAME and SECT_SIZE. */
|
|
|
|
const struct regset *
|
|
armbsd_regset_from_core_section (struct gdbarch *gdbarch,
|
|
const char *sect_name, size_t sect_size)
|
|
{
|
|
if (strcmp (sect_name, ".reg") == 0 && sect_size >= ARMBSD_SIZEOF_GREGS)
|
|
return &armbsd_gregset;
|
|
|
|
if (strcmp (sect_name, ".reg2") == 0 && sect_size >= ARMBSD_SIZEOF_FPREGS)
|
|
return &armbsd_fpregset;
|
|
|
|
return NULL;
|
|
}
|