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* valops.c (value_assign): Respect parent offset when

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assigning to a bitfield.
This commit is contained in:
Ulrich Weigand 2009-09-28 09:16:15 +00:00
parent 5ccff77654
commit 2d88202ad4
2 changed files with 14 additions and 7 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2009-09-28 Ulrich Weigand <uweigand@de.ibm.com>
* valops.c (value_assign): Respect parent offset when
assigning to a bitfield.
2009-09-28 Hui Zhu <teawater@gmail.com>
* i386-tdep.c (i386_process_record): Remove "0x" that

16
gdb/valops.c
View File

@ -827,6 +827,9 @@ value_assign (struct value *toval, struct value *fromval)
if (value_bitsize (toval))
{
struct value *parent = value_parent (toval);
changed_addr = value_address (parent) + value_offset (toval);
changed_len = (value_bitpos (toval)
+ value_bitsize (toval)
+ HOST_CHAR_BIT - 1)
@ -838,17 +841,16 @@ value_assign (struct value *toval, struct value *fromval)
registers. */
if (changed_len < TYPE_LENGTH (type)
&& TYPE_LENGTH (type) <= (int) sizeof (LONGEST)
&& ((LONGEST) value_address (toval) % TYPE_LENGTH (type)) == 0)
&& ((LONGEST) changed_addr % TYPE_LENGTH (type)) == 0)
changed_len = TYPE_LENGTH (type);
if (changed_len > (int) sizeof (LONGEST))
error (_("Can't handle bitfields which don't fit in a %d bit word."),
(int) sizeof (LONGEST) * HOST_CHAR_BIT);
read_memory (value_address (toval), buffer, changed_len);
read_memory (changed_addr, buffer, changed_len);
modify_field (type, buffer, value_as_long (fromval),
value_bitpos (toval), value_bitsize (toval));
changed_addr = value_address (toval);
dest_buffer = buffer;
}
else
@ -891,6 +893,8 @@ value_assign (struct value *toval, struct value *fromval)
{
if (value_bitsize (toval))
{
struct value *parent = value_parent (toval);
int offset = value_offset (parent) + value_offset (toval);
int changed_len;
gdb_byte buffer[sizeof (LONGEST)];
@ -903,15 +907,13 @@ value_assign (struct value *toval, struct value *fromval)
error (_("Can't handle bitfields which don't fit in a %d bit word."),
(int) sizeof (LONGEST) * HOST_CHAR_BIT);
get_frame_register_bytes (frame, value_reg,
value_offset (toval),
get_frame_register_bytes (frame, value_reg, offset,
changed_len, buffer);
modify_field (type, buffer, value_as_long (fromval),
value_bitpos (toval), value_bitsize (toval));
put_frame_register_bytes (frame, value_reg,
value_offset (toval),
put_frame_register_bytes (frame, value_reg, offset,
changed_len, buffer);
}
else