mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-27 12:03:41 +08:00
4a94e36819
This commit brings all the changes made by running gdb/copyright.py as per GDB's Start of New Year Procedure. For the avoidance of doubt, all changes in this commits were performed by the script.
214 lines
6.4 KiB
C
214 lines
6.4 KiB
C
/* none on ARM target support.
|
|
|
|
Copyright (C) 2020-2022 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 "arm-tdep.h"
|
|
#include "arch-utils.h"
|
|
#include "regcache.h"
|
|
#include "elf-bfd.h"
|
|
#include "regset.h"
|
|
#include "user-regs.h"
|
|
|
|
#ifdef HAVE_ELF
|
|
#include "elf-none-tdep.h"
|
|
#endif
|
|
|
|
/* Core file and register set support. */
|
|
#define ARM_NONE_SIZEOF_GREGSET (18 * ARM_INT_REGISTER_SIZE)
|
|
|
|
/* Support VFP register format. */
|
|
#define ARM_NONE_SIZEOF_VFP (32 * 8 + 4)
|
|
|
|
/* The index to access CPSR in user_regs as defined in GLIBC. */
|
|
#define ARM_NONE_CPSR_GREGNUM 16
|
|
|
|
/* Supply register REGNUM from buffer GREGS_BUF (length LEN bytes) into
|
|
REGCACHE. If REGNUM is -1 then supply all registers. The set of
|
|
registers that this function will supply is limited to the general
|
|
purpose registers.
|
|
|
|
The layout of the registers here is based on the ARM GNU/Linux
|
|
layout. */
|
|
|
|
static void
|
|
arm_none_supply_gregset (const struct regset *regset,
|
|
struct regcache *regcache,
|
|
int regnum, const void *gregs_buf, size_t len)
|
|
{
|
|
struct gdbarch *gdbarch = regcache->arch ();
|
|
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
|
|
const gdb_byte *gregs = (const gdb_byte *) gregs_buf;
|
|
|
|
for (int regno = ARM_A1_REGNUM; regno < ARM_PC_REGNUM; regno++)
|
|
if (regnum == -1 || regnum == regno)
|
|
regcache->raw_supply (regno, gregs + ARM_INT_REGISTER_SIZE * regno);
|
|
|
|
if (regnum == ARM_PS_REGNUM || regnum == -1)
|
|
{
|
|
if (arm_apcs_32)
|
|
regcache->raw_supply (ARM_PS_REGNUM,
|
|
gregs + ARM_INT_REGISTER_SIZE
|
|
* ARM_NONE_CPSR_GREGNUM);
|
|
else
|
|
regcache->raw_supply (ARM_PS_REGNUM,
|
|
gregs + ARM_INT_REGISTER_SIZE * ARM_PC_REGNUM);
|
|
}
|
|
|
|
if (regnum == ARM_PC_REGNUM || regnum == -1)
|
|
{
|
|
gdb_byte pc_buf[ARM_INT_REGISTER_SIZE];
|
|
|
|
CORE_ADDR reg_pc
|
|
= extract_unsigned_integer (gregs + ARM_INT_REGISTER_SIZE
|
|
* ARM_PC_REGNUM,
|
|
ARM_INT_REGISTER_SIZE, byte_order);
|
|
reg_pc = gdbarch_addr_bits_remove (gdbarch, reg_pc);
|
|
store_unsigned_integer (pc_buf, ARM_INT_REGISTER_SIZE, byte_order,
|
|
reg_pc);
|
|
regcache->raw_supply (ARM_PC_REGNUM, pc_buf);
|
|
}
|
|
}
|
|
|
|
/* Collect register REGNUM from REGCACHE and place it into buffer GREGS_BUF
|
|
(length LEN bytes). If REGNUM is -1 then collect all registers. The
|
|
set of registers that this function will collect is limited to the
|
|
general purpose registers.
|
|
|
|
The layout of the registers here is based on the ARM GNU/Linux
|
|
layout. */
|
|
|
|
static void
|
|
arm_none_collect_gregset (const struct regset *regset,
|
|
const struct regcache *regcache,
|
|
int regnum, void *gregs_buf, size_t len)
|
|
{
|
|
gdb_byte *gregs = (gdb_byte *) gregs_buf;
|
|
|
|
for (int regno = ARM_A1_REGNUM; regno < ARM_PC_REGNUM; regno++)
|
|
if (regnum == -1 || regnum == regno)
|
|
regcache->raw_collect (regno,
|
|
gregs + ARM_INT_REGISTER_SIZE * regno);
|
|
|
|
if (regnum == ARM_PS_REGNUM || regnum == -1)
|
|
{
|
|
if (arm_apcs_32)
|
|
regcache->raw_collect (ARM_PS_REGNUM,
|
|
gregs + ARM_INT_REGISTER_SIZE
|
|
* ARM_NONE_CPSR_GREGNUM);
|
|
else
|
|
regcache->raw_collect (ARM_PS_REGNUM,
|
|
gregs + ARM_INT_REGISTER_SIZE * ARM_PC_REGNUM);
|
|
}
|
|
|
|
if (regnum == ARM_PC_REGNUM || regnum == -1)
|
|
regcache->raw_collect (ARM_PC_REGNUM,
|
|
gregs + ARM_INT_REGISTER_SIZE * ARM_PC_REGNUM);
|
|
}
|
|
|
|
/* Supply VFP registers from REGS_BUF into REGCACHE. */
|
|
|
|
static void
|
|
arm_none_supply_vfp (const struct regset *regset,
|
|
struct regcache *regcache,
|
|
int regnum, const void *regs_buf, size_t len)
|
|
{
|
|
const gdb_byte *regs = (const gdb_byte *) regs_buf;
|
|
|
|
if (regnum == ARM_FPSCR_REGNUM || regnum == -1)
|
|
regcache->raw_supply (ARM_FPSCR_REGNUM, regs + 32 * 8);
|
|
|
|
for (int regno = ARM_D0_REGNUM; regno <= ARM_D31_REGNUM; regno++)
|
|
if (regnum == -1 || regnum == regno)
|
|
regcache->raw_supply (regno, regs + (regno - ARM_D0_REGNUM) * 8);
|
|
}
|
|
|
|
/* Collect VFP registers from REGCACHE into REGS_BUF. */
|
|
|
|
static void
|
|
arm_none_collect_vfp (const struct regset *regset,
|
|
const struct regcache *regcache,
|
|
int regnum, void *regs_buf, size_t len)
|
|
{
|
|
gdb_byte *regs = (gdb_byte *) regs_buf;
|
|
|
|
if (regnum == ARM_FPSCR_REGNUM || regnum == -1)
|
|
regcache->raw_collect (ARM_FPSCR_REGNUM, regs + 32 * 8);
|
|
|
|
for (int regno = ARM_D0_REGNUM; regno <= ARM_D31_REGNUM; regno++)
|
|
if (regnum == -1 || regnum == regno)
|
|
regcache->raw_collect (regno, regs + (regno - ARM_D0_REGNUM) * 8);
|
|
}
|
|
|
|
/* The general purpose register set. */
|
|
|
|
static const struct regset arm_none_gregset =
|
|
{
|
|
nullptr, arm_none_supply_gregset, arm_none_collect_gregset
|
|
};
|
|
|
|
/* The VFP register set. */
|
|
|
|
static const struct regset arm_none_vfpregset =
|
|
{
|
|
nullptr, arm_none_supply_vfp, arm_none_collect_vfp
|
|
};
|
|
|
|
/* Iterate over core file register note sections. */
|
|
|
|
static void
|
|
arm_none_iterate_over_regset_sections (struct gdbarch *gdbarch,
|
|
iterate_over_regset_sections_cb *cb,
|
|
void *cb_data,
|
|
const struct regcache *regcache)
|
|
{
|
|
arm_gdbarch_tdep *tdep = (arm_gdbarch_tdep *) gdbarch_tdep (gdbarch);
|
|
|
|
cb (".reg", ARM_NONE_SIZEOF_GREGSET, ARM_NONE_SIZEOF_GREGSET,
|
|
&arm_none_gregset, nullptr, cb_data);
|
|
|
|
if (tdep->vfp_register_count > 0)
|
|
cb (".reg-arm-vfp", ARM_NONE_SIZEOF_VFP, ARM_NONE_SIZEOF_VFP,
|
|
&arm_none_vfpregset, "VFP floating-point", cb_data);
|
|
}
|
|
|
|
/* Initialize ARM bare-metal ABI info. */
|
|
|
|
static void
|
|
arm_none_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
|
|
{
|
|
#ifdef HAVE_ELF
|
|
elf_none_init_abi (gdbarch);
|
|
#endif
|
|
|
|
/* Iterate over registers for reading and writing bare metal ARM core
|
|
files. */
|
|
set_gdbarch_iterate_over_regset_sections
|
|
(gdbarch, arm_none_iterate_over_regset_sections);
|
|
}
|
|
|
|
/* Initialize ARM bare-metal target support. */
|
|
|
|
void _initialize_arm_none_tdep ();
|
|
void
|
|
_initialize_arm_none_tdep ()
|
|
{
|
|
gdbarch_register_osabi (bfd_arch_arm, 0, GDB_OSABI_NONE,
|
|
arm_none_init_abi);
|
|
}
|