/* Common target dependent code for GDB on ARM systems.
- Copyright (C) 1988-2018 Free Software Foundation, Inc.
+ Copyright (C) 1988-2019 Free Software Foundation, Inc.
This file is part of GDB.
#include "coff/internal.h"
#include "elf/arm.h"
-#include "vec.h"
+#include "common/vec.h"
#include "record.h"
#include "record-full.h"
#include "features/arm/arm-with-neon.c"
#if GDB_SELF_TEST
-#include "selftest.h"
+#include "common/selftest.h"
#endif
static int arm_debug;
CORE_ADDR frame_loc;
ULONGEST return_value;
+ /* AAPCS does not use a frame register, so we can abort here. */
+ if (gdbarch_tdep (gdbarch)->arm_abi == ARM_ABI_AAPCS)
+ return;
+
frame_loc = get_frame_register_unsigned (this_frame, ARM_FP_REGNUM);
if (!safe_read_memory_unsigned_integer (frame_loc, 4, byte_order,
&return_value))
arm_normal_frame_base
};
-/* Assuming THIS_FRAME is a dummy, return the frame ID of that
- dummy frame. The frame ID's base needs to match the TOS value
- saved by save_dummy_frame_tos() and returned from
- arm_push_dummy_call, and the PC needs to match the dummy frame's
- breakpoint. */
-
-static struct frame_id
-arm_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
-{
- return frame_id_build (get_frame_register_unsigned (this_frame,
- ARM_SP_REGNUM),
- get_frame_pc (this_frame));
-}
-
-/* Given THIS_FRAME, find the previous frame's resume PC (which will
- be used to construct the previous frame's ID, after looking up the
- containing function). */
-
-static CORE_ADDR
-arm_unwind_pc (struct gdbarch *gdbarch, struct frame_info *this_frame)
-{
- CORE_ADDR pc;
- pc = frame_unwind_register_unsigned (this_frame, ARM_PC_REGNUM);
- return arm_addr_bits_remove (gdbarch, pc);
-}
-
-static CORE_ADDR
-arm_unwind_sp (struct gdbarch *gdbarch, struct frame_info *this_frame)
-{
- return frame_unwind_register_unsigned (this_frame, ARM_SP_REGNUM);
-}
-
static struct value *
arm_dwarf2_prev_register (struct frame_info *this_frame, void **this_cache,
int regnum)
static CORE_ADDR
arm_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
struct regcache *regcache, CORE_ADDR bp_addr, int nargs,
- struct value **args, CORE_ADDR sp, int struct_return,
+ struct value **args, CORE_ADDR sp,
+ function_call_return_method return_method,
CORE_ADDR struct_addr)
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
/* The struct_return pointer occupies the first parameter
passing register. */
- if (struct_return)
+ if (return_method == return_method_struct)
{
if (arm_debug)
fprintf_unfiltered (gdb_stdlog, "struct return in %s = %s\n",
reg_char, reg_scaled + i);
regnum = user_reg_map_name_to_regnum (gdbarch, name_buf,
strlen (name_buf));
- regcache_cooked_write (regcache, regnum,
- val + i * unit_length);
+ regcache->cooked_write (regnum, val + i * unit_length);
}
}
continue;
else if (op == 0x3)
/* Not really supported. */
return arm_copy_unmodified (gdbarch, insn, "smc", dsc);
+ /* Fall through. */
default:
return arm_copy_undef (gdbarch, insn, dsc);
{
if (bit (insn1, 9)) /* Data processing (plain binary imm). */
{
- int op = bits (insn1, 4, 8);
+ int dp_op = bits (insn1, 4, 8);
int rn = bits (insn1, 0, 3);
- if ((op == 0 || op == 0xa) && rn == 0xf)
+ if ((dp_op == 0 || dp_op == 0xa) && rn == 0xf)
err = thumb_copy_pc_relative_32bit (gdbarch, insn1, insn2,
regs, dsc);
else
internal type. */
bfd_byte tmpbuf[FP_REGISTER_SIZE];
- regcache_cooked_read (regs, ARM_F0_REGNUM, tmpbuf);
+ regs->cooked_read (ARM_F0_REGNUM, tmpbuf);
target_float_convert (tmpbuf, arm_ext_type (gdbarch),
valbuf, type);
}
/* ARM_FLOAT_VFP can arise if this is a variadic function so
not using the VFP ABI code. */
case ARM_FLOAT_VFP:
- regcache_cooked_read (regs, ARM_A1_REGNUM, valbuf);
+ regs->cooked_read (ARM_A1_REGNUM, valbuf);
if (TYPE_LENGTH (type) > 4)
- regcache_cooked_read (regs, ARM_A1_REGNUM + 1,
- valbuf + INT_REGISTER_SIZE);
+ regs->cooked_read (ARM_A1_REGNUM + 1, valbuf + INT_REGISTER_SIZE);
break;
default:
while (len > 0)
{
- regcache_cooked_read (regs, regno++, tmpbuf);
+ regs->cooked_read (regno++, tmpbuf);
memcpy (valbuf, tmpbuf,
len > INT_REGISTER_SIZE ? INT_REGISTER_SIZE : len);
len -= INT_REGISTER_SIZE;
case ARM_FLOAT_FPA:
target_float_convert (valbuf, type, buf, arm_ext_type (gdbarch));
- regcache_cooked_write (regs, ARM_F0_REGNUM, buf);
+ regs->cooked_write (ARM_F0_REGNUM, buf);
break;
case ARM_FLOAT_SOFT_FPA:
/* ARM_FLOAT_VFP can arise if this is a variadic function so
not using the VFP ABI code. */
case ARM_FLOAT_VFP:
- regcache_cooked_write (regs, ARM_A1_REGNUM, valbuf);
+ regs->cooked_write (ARM_A1_REGNUM, valbuf);
if (TYPE_LENGTH (type) > 4)
- regcache_cooked_write (regs, ARM_A1_REGNUM + 1,
- valbuf + INT_REGISTER_SIZE);
+ regs->cooked_write (ARM_A1_REGNUM + 1, valbuf + INT_REGISTER_SIZE);
break;
default:
LONGEST val = unpack_long (type, valbuf);
store_signed_integer (tmpbuf, INT_REGISTER_SIZE, byte_order, val);
- regcache_cooked_write (regs, ARM_A1_REGNUM, tmpbuf);
+ regs->cooked_write (ARM_A1_REGNUM, tmpbuf);
}
else
{
while (len > 0)
{
- regcache_cooked_write (regs, regno++, valbuf);
+ regs->cooked_write (regno++, valbuf);
len -= INT_REGISTER_SIZE;
valbuf += INT_REGISTER_SIZE;
}
{
memcpy (tmpbuf, valbuf,
len > INT_REGISTER_SIZE ? INT_REGISTER_SIZE : len);
- regcache_cooked_write (regs, regno++, tmpbuf);
+ regs->cooked_write (regno++, tmpbuf);
len -= INT_REGISTER_SIZE;
valbuf += INT_REGISTER_SIZE;
}
regnum = user_reg_map_name_to_regnum (gdbarch, name_buf,
strlen (name_buf));
if (writebuf)
- regcache_cooked_write (regcache, regnum,
- writebuf + i * unit_length);
+ regcache->cooked_write (regnum, writebuf + i * unit_length);
if (readbuf)
- regcache_cooked_read (regcache, regnum,
- readbuf + i * unit_length);
+ regcache->cooked_read (regnum, readbuf + i * unit_length);
}
}
return RETURN_VALUE_REGISTER_CONVENTION;
else
offset = 0;
- regcache_raw_write (regcache, double_regnum, buf + offset);
+ regcache->raw_write (double_regnum, buf + offset);
offset = 8 - offset;
- regcache_raw_write (regcache, double_regnum + 1, buf + offset);
+ regcache->raw_write (double_regnum + 1, buf + offset);
}
static void
double_regnum = user_reg_map_name_to_regnum (gdbarch, name_buf,
strlen (name_buf));
- regcache_raw_read (regcache, double_regnum, reg_buf);
+ regcache->raw_read (double_regnum, reg_buf);
memcpy (reg_buf + offset, buf, 4);
- regcache_raw_write (regcache, double_regnum, reg_buf);
+ regcache->raw_write (double_regnum, reg_buf);
}
}
else if (ei_osabi == ELFOSABI_NONE || ei_osabi == ELFOSABI_GNU)
{
int eabi_ver = EF_ARM_EABI_VERSION (e_flags);
- int attr_arch, attr_profile;
switch (eabi_ver)
{
executable file includes build attributes; GCC does
copy them to the executable, but e.g. RealView does
not. */
- attr_arch = bfd_elf_get_obj_attr_int (info.abfd, OBJ_ATTR_PROC,
- Tag_CPU_arch);
- attr_profile = bfd_elf_get_obj_attr_int (info.abfd,
- OBJ_ATTR_PROC,
- Tag_CPU_arch_profile);
+ int attr_arch
+ = bfd_elf_get_obj_attr_int (info.abfd, OBJ_ATTR_PROC,
+ Tag_CPU_arch);
+ int attr_profile
+ = bfd_elf_get_obj_attr_int (info.abfd, OBJ_ATTR_PROC,
+ Tag_CPU_arch_profile);
+
/* GCC specifies the profile for v6-M; RealView only
specifies the profile for architectures starting with
V7 (as opposed to architectures with a tag
if (fp_model == ARM_FLOAT_AUTO)
{
- int e_flags = elf_elfheader (info.abfd)->e_flags;
-
switch (e_flags & (EF_ARM_SOFT_FLOAT | EF_ARM_VFP_FLOAT))
{
case 0:
set_gdbarch_write_pc (gdbarch, arm_write_pc);
- /* Frame handling. */
- set_gdbarch_dummy_id (gdbarch, arm_dummy_id);
- set_gdbarch_unwind_pc (gdbarch, arm_unwind_pc);
- set_gdbarch_unwind_sp (gdbarch, arm_unwind_sp);
-
frame_base_set_default (gdbarch, &arm_normal_base);
/* Address manipulation. */
arm_disassembler_options = xstrdup ("reg-names-std");
- const disasm_options_t *disasm_options = disassembler_options_arm ();
+ const disasm_options_t *disasm_options
+ = &disassembler_options_arm ()->options;
int num_disassembly_styles = 0;
for (i = 0; disasm_options->name[i] != NULL; i++)
if (CONST_STRNEQ (disasm_options->name[i], "reg-names-"))
uint32_t record_buf[8], record_buf_mem[8];
ULONGEST u_regval[2] = {0};
- uint32_t reg_src1 = 0, reg_dest = 0;
+ uint32_t reg_src1 = 0;
uint32_t opcode1 = 0;
arm_insn_r->opcode = bits (arm_insn_r->arm_insn, 21, 24);
opc3 = bits (arm_insn_r->arm_insn, 6, 7);
dp_op_sz = bit (arm_insn_r->arm_insn, 8);
bit_d = bit (arm_insn_r->arm_insn, 22);
- opc1 = opc1 & 0x04;
+ /* Mask off the "D" bit. */
+ opc1 = opc1 & ~0x04;
/* Handle VMLA, VMLS. */
if (opc1 == 0x00)
}
}
/* Handle VDIV. */
- else if (opc1 == 0x0b)
+ else if (opc1 == 0x08)
{
if (dp_op_sz)
curr_insn_type = INSN_T1;
class instruction_reader : public abstract_memory_reader
{
public:
- bool read (CORE_ADDR memaddr, gdb_byte *buf, const size_t len)
+ bool read (CORE_ADDR memaddr, gdb_byte *buf, const size_t len) override
{
if (target_read_memory (memaddr, buf, len))
return false;
: m_endian (endian), m_insns (insns), m_insns_size (SIZE)
{}
- bool read (CORE_ADDR memaddr, gdb_byte *buf, const size_t len)
+ bool read (CORE_ADDR memaddr, gdb_byte *buf, const size_t len) override
{
SELF_CHECK (len == 4 || len == 2);
SELF_CHECK (memaddr % 2 == 0);
projects / thirdparty / binutils-gdb.git / blobdiff