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2001-02-05 Elena Zannoni <ezannoni@kwikemart.cygnus.com>

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* sh-tdep.c: Update copyright.
      (sh_extract_return_value): Rewrite.
      (sh3e_sh4_extract_return_value): New function.
      (sh_gdbarch_init): Initialize gdbarch_extract-return_value to new
      version of the function for sh3e and sh4 CPUs.
This commit is contained in:
Elena Zannoni
2001-02-06 02:00:44 +00:00
parent 240be855ba
commit 3116c80aec
2 changed files with 78 additions and 8 deletions
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12
gdb/ChangeLog
View File

@ -1,3 +1,11 @@
2001-02-05 Elena Zannoni <ezannoni@kwikemart.cygnus.com>
* sh-tdep.c: Update copyright.
(sh_extract_return_value): Rewrite.
(sh3e_sh4_extract_return_value): New function.
(sh_gdbarch_init): Initialize gdbarch_extract-return_value to new
version of the function for sh3e and sh4 CPUs.
2001-02-05 Michael Chastain <chastain@redhat.com>
* hppah-nat.c (child_xfer_memory): Add parameter 'struct mem_attrib *'
@ -575,8 +583,8 @@ Fri Jan 12 18:29:46 2001 Andrew Cagney <cagney@b1.cygnus.com>
2001-01-02 Michael Snyder <msnyder@cleaver.cygnus.com>
* sh-tdep.c (sh_extract_return_value): Allow for small return type.
(sh_sh4_extract_return_value): Call sh_extract_return_value for
* sh-tdep.c (sh_default_store_return_value): Allow for small return type.
(sh3e_sh4_store_return_value): Call sh_default_store_return_value for
non-float types.
* sparc-tdep.c (sparc_frame_chain): Fix typo in comment.
Update copyright notice.

74
gdb/sh-tdep.c
View File

@ -1,6 +1,6 @@
/* 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, 2000, 2001
Free Software Foundation, Inc.
This file is part of GDB.
@ -59,6 +59,7 @@ static gdbarch_saved_pc_after_call_ftype sh_saved_pc_after_call;
/* 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;
@ -1042,11 +1043,70 @@ 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)
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
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)
{
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");
}
@ -1917,6 +1977,7 @@ sh_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
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)
@ -1982,6 +2043,7 @@ sh_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
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);
@ -2024,6 +2086,7 @@ sh_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
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);
@ -2092,7 +2155,6 @@ sh_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
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);