/* Target-dependent code for Hitachi Super-H, for GDB.
- Copyright 1993, 1994, 1995, 1996, 1997, 1998, 2000 Free Software
- Foundation, Inc.
+ Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
+ Free Software Foundation, Inc.
This file is part of GDB.
#include "gdb_string.h"
#include "arch-utils.h"
#include "floatformat.h"
+#include "regcache.h"
#include "solib-svr4.h"
static gdbarch_init_extra_frame_info_ftype sh_init_extra_frame_info;
static gdbarch_pop_frame_ftype sh_pop_frame;
static gdbarch_saved_pc_after_call_ftype sh_saved_pc_after_call;
-static gdbarch_frame_args_address_ftype sh_frame_args_address;
-static gdbarch_frame_locals_address_ftype sh_frame_locals_address;
/* Function call related functions. */
static gdbarch_extract_return_value_ftype sh_extract_return_value;
+static gdbarch_extract_return_value_ftype sh3e_sh4_extract_return_value;
static gdbarch_extract_struct_value_address_ftype sh_extract_struct_value_address;
static gdbarch_use_struct_convention_ftype sh_use_struct_convention;
static gdbarch_store_struct_return_ftype sh_store_struct_return;
static gdbarch_store_pseudo_register_ftype sh_store_pseudo_register;
static int fv_reg_base_num (int);
static int dr_reg_base_num (int);
+static gdbarch_do_registers_info_ftype sh_do_registers_info;
static void do_fv_register_info (int fv_regnum);
static void do_dr_register_info (int dr_regnum);
static void sh_do_pseudo_register (int regnum);
return ((frame)->extra_info->return_pc);
}
-static CORE_ADDR
-sh_frame_args_address (struct frame_info *fi)
-{
- return (fi)->frame;
-}
-
-static CORE_ADDR
-sh_frame_locals_address (struct frame_info *fi)
-{
- return (fi)->frame;
-}
-
/* Discard from the stack the innermost frame,
restoring all saved registers. */
static void
sh_extract_return_value (struct type *type, char *regbuf, char *valbuf)
{
int len = TYPE_LENGTH (type);
-
+ int return_register = R0_REGNUM;
+ int offset;
+
if (len <= 4)
- memcpy (valbuf, ((char *) regbuf) + 4 - len, len);
+ {
+ if (TARGET_BYTE_ORDER == BIG_ENDIAN)
+ offset = REGISTER_BYTE (return_register) + 4 - len;
+ else
+ offset = REGISTER_BYTE (return_register);
+ memcpy (valbuf, regbuf + offset, len);
+ }
+ else if (len <= 8)
+ {
+ if (TARGET_BYTE_ORDER == BIG_ENDIAN)
+ offset = REGISTER_BYTE (return_register) + 8 - len;
+ else
+ offset = REGISTER_BYTE (return_register);
+ memcpy (valbuf, regbuf + offset, len);
+ }
+ else
+ error ("bad size for return value");
+}
+
+static void
+sh3e_sh4_extract_return_value (struct type *type, char *regbuf, char *valbuf)
+{
+ int return_register;
+ int offset;
+ int len = TYPE_LENGTH (type);
+
+ if (TYPE_CODE (type) == TYPE_CODE_FLT)
+ return_register = FP0_REGNUM;
+ else
+ return_register = R0_REGNUM;
+
+ if (len == 8 && TYPE_CODE (type) == TYPE_CODE_FLT)
+ {
+ DOUBLEST val;
+ if (TARGET_BYTE_ORDER == LITTLE_ENDIAN)
+ floatformat_to_doublest (&floatformat_ieee_double_littlebyte_bigword,
+ (char *) regbuf + REGISTER_BYTE (return_register),
+ &val);
+ else
+ floatformat_to_doublest (&floatformat_ieee_double_big,
+ (char *) regbuf + REGISTER_BYTE (return_register),
+ &val);
+ store_floating (valbuf, len, val);
+ }
+ else if (len <= 4)
+ {
+ if (TARGET_BYTE_ORDER == BIG_ENDIAN)
+ offset = REGISTER_BYTE (return_register) + 4 - len;
+ else
+ offset = REGISTER_BYTE (return_register);
+ memcpy (valbuf, regbuf + offset, len);
+ }
else if (len <= 8)
- memcpy (valbuf, ((char *) regbuf) + 8 - len, len);
+ {
+ if (TARGET_BYTE_ORDER == BIG_ENDIAN)
+ offset = REGISTER_BYTE (return_register) + 8 - len;
+ else
+ offset = REGISTER_BYTE (return_register);
+ memcpy (valbuf, regbuf + offset, len);
+ }
else
error ("bad size for return value");
}
static void
sh_default_store_return_value (struct type *type, char *valbuf)
{
- write_register_bytes (REGISTER_BYTE (0),
- valbuf, TYPE_LENGTH (type));
+ char buf[32]; /* more than enough... */
+
+ if (TYPE_LENGTH (type) < REGISTER_RAW_SIZE (R0_REGNUM))
+ {
+ /* Add leading zeros to the value. */
+ memset (buf, 0, REGISTER_RAW_SIZE (R0_REGNUM));
+ memcpy (buf + REGISTER_RAW_SIZE (R0_REGNUM) - TYPE_LENGTH (type),
+ valbuf, TYPE_LENGTH (type));
+ write_register_bytes (REGISTER_BYTE (R0_REGNUM), buf,
+ REGISTER_RAW_SIZE (R0_REGNUM));
+ }
+ else
+ write_register_bytes (REGISTER_BYTE (R0_REGNUM), valbuf,
+ TYPE_LENGTH (type));
}
static void
write_register_bytes (REGISTER_BYTE (FP0_REGNUM),
valbuf, TYPE_LENGTH (type));
else
- write_register_bytes (REGISTER_BYTE (0),
- valbuf, TYPE_LENGTH (type));
+ sh_default_store_return_value (type, valbuf);
}
sh_do_pseudo_register (int regnum)
{
if (regnum < NUM_REGS || regnum >= NUM_REGS + NUM_PSEUDO_REGS)
- internal_error ("Invalid pseudo register number %d\n", regnum);
+ internal_error (__FILE__, __LINE__,
+ "Invalid pseudo register number %d\n", regnum);
else if (regnum >= gdbarch_tdep (current_gdbarch)->DR0_REGNUM
&& regnum < gdbarch_tdep (current_gdbarch)->DR_LAST_REGNUM)
do_dr_register_info (regnum);
sh_print_register (int regnum)
{
if (regnum < 0 || regnum >= NUM_REGS + NUM_PSEUDO_REGS)
- internal_error ("Invalid register number %d\n", regnum);
+ internal_error (__FILE__, __LINE__,
+ "Invalid register number %d\n", regnum);
- else if (regnum > 0 && regnum < NUM_REGS)
+ else if (regnum >= 0 && regnum < NUM_REGS)
{
if (TYPE_CODE (REGISTER_VIRTUAL_TYPE (regnum)) == TYPE_CODE_FLT)
sh_do_fp_register (regnum); /* FP regs */
set_gdbarch_register_bytes (gdbarch, NUM_REGS * 4);
set_gdbarch_fetch_pseudo_register (gdbarch, sh_fetch_pseudo_register);
set_gdbarch_store_pseudo_register (gdbarch, sh_store_pseudo_register);
+ set_gdbarch_do_registers_info (gdbarch, sh_do_registers_info);
+ set_gdbarch_breakpoint_from_pc (gdbarch, sh_breakpoint_from_pc);
+ set_gdbarch_extract_return_value (gdbarch, sh_extract_return_value);
print_sh_insn = gdb_print_insn_sh;
switch (info.bfd_arch_info->mach)
sh_show_regs = sh3e_show_regs;
sh_store_return_value = sh3e_sh4_store_return_value;
sh_register_virtual_type = sh_sh3e_register_virtual_type;
+ set_gdbarch_extract_return_value (gdbarch, sh3e_sh4_extract_return_value);
set_gdbarch_frame_init_saved_regs (gdbarch, sh_fp_frame_init_saved_regs);
set_gdbarch_register_raw_size (gdbarch, sh_default_register_raw_size);
set_gdbarch_register_virtual_size (gdbarch, sh_default_register_raw_size);
sh_show_regs = sh4_show_regs;
sh_store_return_value = sh3e_sh4_store_return_value;
sh_register_virtual_type = sh_sh4_register_virtual_type;
+ set_gdbarch_extract_return_value (gdbarch, sh3e_sh4_extract_return_value);
set_gdbarch_frame_init_saved_regs (gdbarch, sh_fp_frame_init_saved_regs);
set_gdbarch_fp0_regnum (gdbarch, 25);
set_gdbarch_register_raw_size (gdbarch, sh_sh4_register_raw_size);
set_gdbarch_coerce_float_to_double (gdbarch,
sh_coerce_float_to_double);
- set_gdbarch_extract_return_value (gdbarch, sh_extract_return_value);
set_gdbarch_push_arguments (gdbarch, sh_push_arguments);
set_gdbarch_push_dummy_frame (gdbarch, generic_push_dummy_frame);
set_gdbarch_push_return_address (gdbarch, sh_push_return_address);
set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
set_gdbarch_decr_pc_after_break (gdbarch, 0);
set_gdbarch_function_start_offset (gdbarch, 0);
- set_gdbarch_breakpoint_from_pc (gdbarch, sh_breakpoint_from_pc);
set_gdbarch_frame_args_skip (gdbarch, 0);
set_gdbarch_frameless_function_invocation (gdbarch, frameless_look_for_prologue);
set_gdbarch_frame_chain (gdbarch, sh_frame_chain);
set_gdbarch_frame_chain_valid (gdbarch, generic_file_frame_chain_valid);
set_gdbarch_frame_saved_pc (gdbarch, sh_frame_saved_pc);
- set_gdbarch_frame_args_address (gdbarch, sh_frame_args_address);
- set_gdbarch_frame_locals_address (gdbarch, sh_frame_locals_address);
+ set_gdbarch_frame_args_address (gdbarch, default_frame_address);
+ set_gdbarch_frame_locals_address (gdbarch, default_frame_address);
set_gdbarch_saved_pc_after_call (gdbarch, sh_saved_pc_after_call);
set_gdbarch_frame_num_args (gdbarch, frame_num_args_unknown);
set_gdbarch_believe_pcc_promotion (gdbarch, 1);
projects / deliverable / binutils-gdb.git / blobdiff