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/* Copyright (C) 1995-2015 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 "server.h"
#include "arch/arm.h"
#include "linux-low.h"
#include "linux-aarch32-low.h"
#include <sys/ptrace.h>
/* Don't include elf.h if linux/elf.h got included by gdb_proc_service.h.
On Bionic elf.h and linux/elf.h have conflicting definitions. */
#ifndef ELFMAG0
#include <elf.h>
#endif
/* Some older versions of GNU/Linux and Android do not define
the following macros. */
#ifndef NT_ARM_VFP
#define NT_ARM_VFP 0x400
#endif
/* Collect GP registers from REGCACHE to buffer BUF. */
void
arm_fill_gregset (struct regcache *regcache, void *buf)
{
int i;
uint32_t *regs = buf;
for (i = ARM_A1_REGNUM; i <= ARM_PC_REGNUM; i++)
collect_register (regcache, i, ®s[i]);
collect_register (regcache, ARM_PS_REGNUM, ®s[16]);
}
/* Supply GP registers contents, stored in BUF, to REGCACHE. */
void
arm_store_gregset (struct regcache *regcache, const void *buf)
{
int i;
char zerobuf[8];
const uint32_t *regs = buf;
memset (zerobuf, 0, 8);
for (i = ARM_A1_REGNUM; i <= ARM_PC_REGNUM; i++)
supply_register (regcache, i, ®s[i]);
for (; i < ARM_PS_REGNUM; i++)
supply_register (regcache, i, zerobuf);
supply_register (regcache, ARM_PS_REGNUM, ®s[16]);
}
/* Collect NUM number of VFP registers from REGCACHE to buffer BUF. */
void
arm_fill_vfpregset_num (struct regcache *regcache, void *buf, int num)
{
int i, base;
gdb_assert (num == 16 || num == 32);
base = find_regno (regcache->tdesc, "d0");
for (i = 0; i < num; i++)
collect_register (regcache, base + i, (char *) buf + i * 8);
collect_register_by_name (regcache, "fpscr", (char *) buf + 32 * 8);
}
/* Supply NUM number of VFP registers contents, stored in BUF, to
REGCACHE. */
void
arm_store_vfpregset_num (struct regcache *regcache, const void *buf, int num)
{
int i, base;
gdb_assert (num == 16 || num == 32);
base = find_regno (regcache->tdesc, "d0");
for (i = 0; i < num; i++)
supply_register (regcache, base + i, (char *) buf + i * 8);
supply_register_by_name (regcache, "fpscr", (char *) buf + 32 * 8);
}
static void
arm_fill_vfpregset (struct regcache *regcache, void *buf)
{
arm_fill_vfpregset_num (regcache, buf, 32);
}
static void
arm_store_vfpregset (struct regcache *regcache, const void *buf)
{
arm_store_vfpregset_num (regcache, buf, 32);
}
/* Register sets with using PTRACE_GETREGSET. */
static struct regset_info aarch32_regsets[] = {
{ PTRACE_GETREGSET, PTRACE_SETREGSET, NT_PRSTATUS, 18 * 4,
GENERAL_REGS,
arm_fill_gregset, arm_store_gregset },
{ PTRACE_GETREGSET, PTRACE_SETREGSET, NT_ARM_VFP, 32 * 8 + 4,
EXTENDED_REGS,
arm_fill_vfpregset, arm_store_vfpregset },
{ 0, 0, 0, -1, -1, NULL, NULL }
};
static struct regsets_info aarch32_regsets_info =
{
aarch32_regsets, /* regsets */
0, /* num_regsets */
NULL, /* disabled_regsets */
};
struct regs_info regs_info_aarch32 =
{
NULL, /* regset_bitmap */
NULL, /* usrregs */
&aarch32_regsets_info
};
void
initialize_low_arch_aarch32 (void)
{
init_registers_arm_with_neon ();
initialize_regsets_info (&aarch32_regsets_info);
}
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