/* Target-dependent code for the NDS32 architecture, for GDB.
- Copyright (C) 2013-2017 Free Software Foundation, Inc.
+ Copyright (C) 2013-2020 Free Software Foundation, Inc.
Contributed by Andes Technology Corporation.
This file is part of GDB.
#include "dis-asm.h"
#include "user-regs.h"
#include "elf-bfd.h"
-#include "dwarf2-frame.h"
+#include "dwarf2/frame.h"
#include "remote.h"
#include "target-descriptions.h"
#define N32_FLDI_SP \
N32_TYPE2 (LDC, 0, REG_SP, 0)
-extern void _initialize_nds32_tdep (void);
-
/* Use an invalid address value as 'not available' marker. */
enum { REG_UNAVAIL = (CORE_ADDR) -1 };
static enum register_status
nds32_pseudo_register_read (struct gdbarch *gdbarch,
- struct regcache *regcache, int regnum,
+ readable_regcache *regcache, int regnum,
gdb_byte *buf)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
offset = (regnum & 1) ? 0 : 4;
fdr_regnum = NDS32_FD0_REGNUM + (regnum >> 1);
- status = regcache_raw_read (regcache, fdr_regnum, reg_buf);
+ status = regcache->raw_read (fdr_regnum, reg_buf);
if (status == REG_VALID)
memcpy (buf, reg_buf + offset, 4);
offset = (regnum & 1) ? 0 : 4;
fdr_regnum = NDS32_FD0_REGNUM + (regnum >> 1);
- regcache_raw_read (regcache, fdr_regnum, reg_buf);
+ regcache->raw_read (fdr_regnum, reg_buf);
memcpy (reg_buf + offset, buf, 4);
- regcache_raw_write (regcache, fdr_regnum, reg_buf);
+ regcache->raw_write (fdr_regnum, reg_buf);
return;
}
NULL,
nds32_epilogue_frame_sniffer
};
-\f
-/* Implement the "dummy_id" gdbarch method. */
-
-static struct frame_id
-nds32_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
-{
- CORE_ADDR sp = get_frame_register_unsigned (this_frame, NDS32_SP_REGNUM);
-
- return frame_id_build (sp, get_frame_pc (this_frame));
-}
-
-/* Implement the "unwind_pc" gdbarch method. */
-static CORE_ADDR
-nds32_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
- return frame_unwind_register_unsigned (next_frame, NDS32_PC_REGNUM);
-}
-
-/* Implement the "unwind_sp" gdbarch method. */
-
-static CORE_ADDR
-nds32_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
- return frame_unwind_register_unsigned (next_frame, NDS32_SP_REGNUM);
-}
\f
/* Floating type and struct type that has only one floating type member
can pass value using FPU registers (when FPU ABI is used). */
while (1)
{
t = check_typedef (t);
- typecode = TYPE_CODE (t);
+ typecode = t->code ();
if (typecode != TYPE_CODE_STRUCT)
break;
- else if (TYPE_NFIELDS (t) != 1)
+ else if (t->num_fields () != 1)
return 0;
else
t = TYPE_FIELD_TYPE (t, 0);
return typecode == TYPE_CODE_FLT;
}
-/* Return the alignment (in bytes) of the given type. */
-
-static int
-nds32_type_align (struct type *type)
-{
- int n;
- int align;
- int falign;
-
- type = check_typedef (type);
- switch (TYPE_CODE (type))
- {
- default:
- /* Should never happen. */
- internal_error (__FILE__, __LINE__, _("unknown type alignment"));
- return 4;
-
- case TYPE_CODE_PTR:
- case TYPE_CODE_ENUM:
- case TYPE_CODE_INT:
- case TYPE_CODE_FLT:
- case TYPE_CODE_SET:
- case TYPE_CODE_RANGE:
- case TYPE_CODE_REF:
- case TYPE_CODE_CHAR:
- case TYPE_CODE_BOOL:
- return TYPE_LENGTH (type);
-
- case TYPE_CODE_ARRAY:
- case TYPE_CODE_COMPLEX:
- return nds32_type_align (TYPE_TARGET_TYPE (type));
-
- case TYPE_CODE_STRUCT:
- case TYPE_CODE_UNION:
- align = 1;
- for (n = 0; n < TYPE_NFIELDS (type); n++)
- {
- falign = nds32_type_align (TYPE_FIELD_TYPE (type, n));
- if (falign > align)
- align = falign;
- }
- return align;
- }
-}
-
/* Implement the "push_dummy_call" gdbarch method. */
static CORE_ADDR
nds32_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, CORE_ADDR struct_addr)
+ function_call_return_method return_method,
+ CORE_ADDR struct_addr)
{
const int REND = 6; /* End for register offset. */
int goff = 0; /* Current gpr offset for argument. */
/* If STRUCT_RETURN is true, then the struct return address (in
STRUCT_ADDR) will consume the first argument-passing register.
Both adjust the register count and store that value. */
- if (struct_return)
+ if (return_method == return_method_struct)
{
regcache_cooked_write_unsigned (regcache, NDS32_R0_REGNUM, struct_addr);
goff++;
for (i = 0; i < nargs; i++)
{
struct type *type = value_type (args[i]);
- int align = nds32_type_align (type);
+ int align = type_align (type);
/* If align is zero, it may be an empty struct.
Just ignore the argument of empty struct. */
type = value_type (args[i]);
calling_use_fpr = nds32_check_calling_use_fpr (type);
len = TYPE_LENGTH (type);
- align = nds32_type_align (type);
+ align = type_align (type);
val = value_contents (args[i]);
/* The size of a composite type larger than 4 bytes will be rounded
and pushes all unnamed arguments in stack. */
if (abi_use_fpr && TYPE_VARARGS (func_type)
- && i >= TYPE_NFIELDS (func_type))
+ && i >= func_type->num_fields ())
goto use_stack;
/* Try to use FPRs to pass arguments only when
switch (len)
{
case 4:
- regcache_cooked_write (regcache,
- tdep->fs0_regnum + foff, val);
+ regcache->cooked_write (tdep->fs0_regnum + foff, val);
foff++;
break;
case 8:
- regcache_cooked_write (regcache,
- NDS32_FD0_REGNUM + (foff >> 1), val);
+ regcache->cooked_write (NDS32_FD0_REGNUM + (foff >> 1), val);
foff += 2;
break;
default:
if (abi_use_fpr && calling_use_fpr)
{
if (len == 4)
- regcache_cooked_read (regcache, tdep->fs0_regnum, valbuf);
+ regcache->cooked_read (tdep->fs0_regnum, valbuf);
else if (len == 8)
- regcache_cooked_read (regcache, NDS32_FD0_REGNUM, valbuf);
+ regcache->cooked_read (NDS32_FD0_REGNUM, valbuf);
else
internal_error (__FILE__, __LINE__,
_("Cannot extract return value of %d bytes "
}
else if (len == 4)
{
- regcache_cooked_read (regcache, NDS32_R0_REGNUM, valbuf);
+ regcache->cooked_read (NDS32_R0_REGNUM, valbuf);
}
else if (len < 8)
{
}
else
{
- regcache_cooked_read (regcache, NDS32_R0_REGNUM, valbuf);
- regcache_cooked_read (regcache, NDS32_R0_REGNUM + 1, valbuf + 4);
+ regcache->cooked_read (NDS32_R0_REGNUM, valbuf);
+ regcache->cooked_read (NDS32_R0_REGNUM + 1, valbuf + 4);
}
}
}
if (abi_use_fpr && calling_use_fpr)
{
if (len == 4)
- regcache_cooked_write (regcache, tdep->fs0_regnum, valbuf);
+ regcache->cooked_write (tdep->fs0_regnum, valbuf);
else if (len == 8)
- regcache_cooked_write (regcache, NDS32_FD0_REGNUM, valbuf);
+ regcache->cooked_write (NDS32_FD0_REGNUM, valbuf);
else
internal_error (__FILE__, __LINE__,
_("Cannot store return value of %d bytes "
}
else if (len == 4)
{
- regcache_cooked_write (regcache, NDS32_R0_REGNUM, valbuf);
+ regcache->cooked_write (NDS32_R0_REGNUM, valbuf);
}
else if (len < 8)
{
}
else
{
- regcache_cooked_write (regcache, NDS32_R0_REGNUM, valbuf);
- regcache_cooked_write (regcache, NDS32_R0_REGNUM + 1, valbuf + 4);
+ regcache->cooked_write (NDS32_R0_REGNUM, valbuf);
+ regcache->cooked_write (NDS32_R0_REGNUM + 1, valbuf + 4);
}
}
}
/* Add NDS32 register aliases. To avoid search in user register name space,
user_reg_map_name_to_regnum is not used. */
- maxregs = (gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch));
+ maxregs = gdbarch_num_cooked_regs (gdbarch);
for (i = 0; i < ARRAY_SIZE (nds32_register_aliases); i++)
{
int regnum, j;
nds32_add_reggroups (gdbarch);
/* Hook in ABI-specific overrides, if they have been registered. */
- info.tdep_info = (void *) tdesc_data;
+ info.tdesc_data = tdesc_data;
gdbarch_init_osabi (info, gdbarch);
/* Override tdesc_register callbacks for system registers. */
set_gdbarch_sp_regnum (gdbarch, NDS32_SP_REGNUM);
set_gdbarch_pc_regnum (gdbarch, NDS32_PC_REGNUM);
- set_gdbarch_unwind_sp (gdbarch, nds32_unwind_sp);
- set_gdbarch_unwind_pc (gdbarch, nds32_unwind_pc);
set_gdbarch_stack_frame_destroyed_p (gdbarch, nds32_stack_frame_destroyed_p);
set_gdbarch_dwarf2_reg_to_regnum (gdbarch, nds32_dwarf2_reg_to_regnum);
set_gdbarch_push_dummy_call (gdbarch, nds32_push_dummy_call);
set_gdbarch_return_value (gdbarch, nds32_return_value);
- set_gdbarch_dummy_id (gdbarch, nds32_dummy_id);
set_gdbarch_skip_prologue (gdbarch, nds32_skip_prologue);
set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
return gdbarch;
}
+void _initialize_nds32_tdep ();
void
-_initialize_nds32_tdep (void)
+_initialize_nds32_tdep ()
{
/* Initialize gdbarch. */
register_gdbarch_init (bfd_arch_nds32, nds32_gdbarch_init);
projects / deliverable / binutils-gdb.git / blobdiff