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binutils-gdb
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Use allocate_optimized_out_value instead of set_value_optimized_out. 

Allocate the value as optimized out from the start rather than allocating
a value with contents, and then marking it optimized out.

gdb/
2013-07-04  Pedro Alves  <palves@redhat.com>

	* findvar.c (value_of_register): Use allocate_optimized_out_value
	if the register has been optimized out, instead of
	set_value_optimized_out.
	* frame-unwind.c (frame_unwind_got_optimized): Use
	allocate_optimized_out_value.
This commit is contained in:
Pedro Alves 2013-07-04 18:10:04 +00:00
parent 58722cac5a
commit 7195e6f018
3 changed files with 16 additions and 6 deletions
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8
gdb/ChangeLog
View File

@ -1,3 +1,11 @@
2013-07-04 Pedro Alves <palves@redhat.com>
* findvar.c (value_of_register): Use allocate_optimized_out_value
if the register has been optimized out, instead of
set_value_optimized_out.
* frame-unwind.c (frame_unwind_got_optimized): Use
allocate_optimized_out_value.
2013-07-04 Pedro Alves <palves@redhat.com>
* value.c (value_bits_valid): If the value is not lval_computed,

8
gdb/findvar.c
View File

@ -266,6 +266,7 @@ value_of_register (int regnum, struct frame_info *frame)
int optim;
int unavail;
struct value *reg_val;
struct type *reg_type;
int realnum;
gdb_byte raw_buffer[MAX_REGISTER_SIZE];
enum lval_type lval;
@ -279,7 +280,11 @@ value_of_register (int regnum, struct frame_info *frame)
frame_register (frame, regnum, &optim, &unavail,
&lval, &addr, &realnum, raw_buffer);
reg_val = allocate_value (register_type (gdbarch, regnum));
reg_type = register_type (gdbarch, regnum);
if (optim)
reg_val = allocate_optimized_out_value (reg_type);
else
reg_val = allocate_value (reg_type);
if (!optim && !unavail)
memcpy (value_contents_raw (reg_val), raw_buffer,
@ -291,7 +296,6 @@ value_of_register (int regnum, struct frame_info *frame)
VALUE_LVAL (reg_val) = lval;
set_value_address (reg_val, addr);
VALUE_REGNUM (reg_val) = regnum;
set_value_optimized_out (reg_val, optim);
if (unavail)
mark_value_bytes_unavailable (reg_val, 0, register_size (gdbarch, regnum));
VALUE_FRAME_ID (reg_val) = get_frame_id (frame);

6
gdb/frame-unwind.c
View File

@ -162,11 +162,9 @@ struct value *
frame_unwind_got_optimized (struct frame_info *frame, int regnum)
{
struct gdbarch *gdbarch = frame_unwind_arch (frame);
struct value *reg_val;
struct type *reg_type = register_type (gdbarch, regnum);
reg_val = value_zero (register_type (gdbarch, regnum), not_lval);
set_value_optimized_out (reg_val, 1);
return reg_val;
return allocate_optimized_out_value (reg_type);
}
/* Return a value which indicates that FRAME copied REGNUM into