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* i386-tdep.h (I386_MAX_REGISTER_SIZE): New define.

Browse source 
* i386-tdep.c (i386_do_pop_frame): Use I386_MAX_REGISTER_SIZE
instead of MAX_REGISTER_RAW_SIZE.
(i386_extract_return_value, i386_extract_struct_value_address):
Convert to use regcache.
(i386_gdbarch_init): Set max_register_raw_size and
max_register_virtual_size to I386_MAX_REGISTER_SIZE.
Set extract_return_value and extract_struct_value_address instead
of their deprecated variants.
This commit is contained in:
Mark Kettenis 2002-07-04 08:18:20 +00:00
parent c0d1d88354
commit 00f8375edd
3 changed files with 34 additions and 18 deletions
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10
gdb/ChangeLog
View file

@ -1,5 +1,15 @@
2002-07-04 Mark Kettenis <kettenis@gnu.org>
* i386-tdep.h (I386_MAX_REGISTER_SIZE): New define.
* i386-tdep.c (i386_do_pop_frame): Use I386_MAX_REGISTER_SIZE
instead of MAX_REGISTER_RAW_SIZE.
(i386_extract_return_value, i386_extract_struct_value_address):
Convert to use regcache.
(i386_gdbarch_init): Set max_register_raw_size and
max_register_virtual_size to I386_MAX_REGISTER_SIZE.
Set extract_return_value and extract_struct_value_address instead
of their deprecated variants.
Convert i386 target to generic dummy frames.
* i386-tdep.c: Include "symfile.h".
(i386_frameless_signal_p): Consider a function to be frameless if

39
gdb/i386-tdep.c
View file

@ -841,7 +841,7 @@ i386_do_pop_frame (struct frame_info *frame)
{
CORE_ADDR fp;
int regnum;
char regbuf[MAX_REGISTER_RAW_SIZE];
char regbuf[I386_MAX_REGISTER_SIZE];
fp = FRAME_FP (frame);
i386_frame_init_saved_regs (frame);
@ -936,14 +936,16 @@ i386_store_struct_return (CORE_ADDR addr, CORE_ADDR sp)
into VALBUF. */
static void
i386_extract_return_value (struct type *type, char *regbuf, char *valbuf)
i386_extract_return_value (struct type *type, struct regcache *regcache,
char *valbuf)
{
int len = TYPE_LENGTH (type);
char buf[I386_MAX_REGISTER_SIZE];
if (TYPE_CODE (type) == TYPE_CODE_STRUCT
&& TYPE_NFIELDS (type) == 1)
{
i386_extract_return_value (TYPE_FIELD_TYPE (type, 0), regbuf, valbuf);
i386_extract_return_value (TYPE_FIELD_TYPE (type, 0), regcache, valbuf);
return;
}
@ -960,8 +962,8 @@ i386_extract_return_value (struct type *type, char *regbuf, char *valbuf)
its contents to the desired type. This is probably not
exactly how it would happen on the target itself, but it is
the best we can do. */
convert_typed_floating (&regbuf[REGISTER_BYTE (FP0_REGNUM)],
builtin_type_i387_ext, valbuf, type);
regcache_read (regcache, FP0_REGNUM, buf);
convert_typed_floating (buf, builtin_type_i387_ext, valbuf, type);
}
else
{
@ -969,13 +971,16 @@ i386_extract_return_value (struct type *type, char *regbuf, char *valbuf)
int high_size = REGISTER_RAW_SIZE (HIGH_RETURN_REGNUM);
if (len <= low_size)
memcpy (valbuf, &regbuf[REGISTER_BYTE (LOW_RETURN_REGNUM)], len);
{
regcache_read (regcache, LOW_RETURN_REGNUM, buf);
memcpy (valbuf, buf, len);
}
else if (len <= (low_size + high_size))
{
memcpy (valbuf,
&regbuf[REGISTER_BYTE (LOW_RETURN_REGNUM)], low_size);
memcpy (valbuf + low_size,
&regbuf[REGISTER_BYTE (HIGH_RETURN_REGNUM)], len - low_size);
regcache_read (regcache, LOW_RETURN_REGNUM, buf);
memcpy (valbuf, buf, low_size);
regcache_read (regcache, HIGH_RETURN_REGNUM, buf);
memcpy (valbuf + low_size, buf, len - low_size);
}
else
internal_error (__FILE__, __LINE__,
@ -1059,10 +1064,9 @@ i386_store_return_value (struct type *type, char *valbuf)
as a CORE_ADDR. */
static CORE_ADDR
i386_extract_struct_value_address (char *regbuf)
i386_extract_struct_value_address (struct regcache *regcache)
{
return extract_address (&regbuf[REGISTER_BYTE (LOW_RETURN_REGNUM)],
REGISTER_RAW_SIZE (LOW_RETURN_REGNUM));
return regcache_read_as_address (regcache, LOW_RETURN_REGNUM);
}
@ -1437,8 +1441,8 @@ i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
set_gdbarch_register_bytes (gdbarch, I386_SIZEOF_GREGS + I386_SIZEOF_FREGS);
set_gdbarch_register_byte (gdbarch, i386_register_byte);
set_gdbarch_register_raw_size (gdbarch, i386_register_raw_size);
set_gdbarch_max_register_raw_size (gdbarch, 16);
set_gdbarch_max_register_virtual_size (gdbarch, 16);
set_gdbarch_max_register_raw_size (gdbarch, I386_MAX_REGISTER_SIZE);
set_gdbarch_max_register_virtual_size (gdbarch, I386_MAX_REGISTER_SIZE);
set_gdbarch_register_virtual_type (gdbarch, i386_register_virtual_type);
set_gdbarch_get_longjmp_target (gdbarch, i386_get_longjmp_target);
@ -1473,15 +1477,14 @@ i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
depending on the size of the argument" -- from the x86 ABI. */
set_gdbarch_parm_boundary (gdbarch, 32);
set_gdbarch_deprecated_extract_return_value (gdbarch,
i386_extract_return_value);
set_gdbarch_extract_return_value (gdbarch, i386_extract_return_value);
set_gdbarch_push_arguments (gdbarch, i386_push_arguments);
set_gdbarch_push_dummy_frame (gdbarch, generic_push_dummy_frame);
set_gdbarch_push_return_address (gdbarch, i386_push_return_address);
set_gdbarch_pop_frame (gdbarch, i386_pop_frame);
set_gdbarch_store_struct_return (gdbarch, i386_store_struct_return);
set_gdbarch_store_return_value (gdbarch, i386_store_return_value);
set_gdbarch_deprecated_extract_struct_value_address (gdbarch,
set_gdbarch_extract_struct_value_address (gdbarch,
i386_extract_struct_value_address);
set_gdbarch_use_struct_convention (gdbarch, i386_use_struct_convention);

3
gdb/i386-tdep.h
View file

@ -157,6 +157,9 @@ struct gdbarch_tdep
#define I386_SSE_SIZEOF_REGS (I386_SIZEOF_GREGS + I386_SIZEOF_FREGS \
+ I386_SIZEOF_XREGS)
/* Size of the largest register. */
#define I386_MAX_REGISTER_SIZE 16
/* Return the name of register REG. */
extern char const *i386_register_name (int reg);