FreeChainXenon/binutils-gdb
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

gdb/

Browse source 
* dwarf2loc.c (read_pieced_value): Handle get_frame_register_bytes
	returning that the register piece is unavailable/optimized out.
	(write_pieced_value): Handle get_frame_register_bytes returning
	that the register piece is unavailable/optimized out when doing a
	read-modify write of a bitfield.
	* findvar.c (value_from_register): Handle get_frame_register_bytes
	returning that the register piece is unavailable/optimized out.
	* frame.c (get_frame_register_bytes): New parameters `optimizedp'
	and `unavailablep'.  Throw error on bad debug info.  Use
	frame_register instead of frame_register_read, to fill in the new
	arguments.
	* frame.h (get_frame_register_bytes): New parameters `optimizedp'
	and `unavailablep'.
	* valops.c: (value_assign): Adjust, and handle
	get_frame_register_bytes failing.
	* spu-tdep.c: Include exceptions.h.
	(spu_software_single_step): Adjust, and handle
	get_frame_register_bytes failing.
	(spu_get_longjmp_target): Ditto.
	* gdbarch.sh (register_to_value): Change to return int.  New
	parameters `optimizedp' and `unavailablep'.
	* gdbarch.h, gdbarch.c: Regenerate.
	* i386-tdep.c (i386_register_to_value): Adjust to new
	gdbarch_register_to_value interface.
	* i387-tdep.c (i387_register_to_value): Ditto.
	* i387-tdep.h (i387_register_to_value): Ditto.
	* alpha-tdep.c (alpha_register_to_value): Ditto.
	* ia64-tdep.c (ia64_register_to_value): Ditto.
	* m68k-tdep.c (m68k_register_to_value): Ditto.
	* mips-tdep.c (mips_register_to_value): Ditto.
	* rs6000-tdep.c (rs6000_register_to_value): Ditto.
This commit is contained in:
Pedro Alves 2011-03-18 18:42:41 +00:00
parent 0fdb4f184b
commit 8dccd430c9
18 changed files with 241 additions and 72 deletions
Download patch file Download diff file Expand all files Collapse all files

34
gdb/dwarf2loc.c
View file

@ -591,8 +591,20 @@ read_pieced_value (struct value *v)
if (gdb_regnum != -1)
{
get_frame_register_bytes (frame, gdb_regnum, reg_offset,
this_size, buffer);
int optim, unavail;
if (!get_frame_register_bytes (frame, gdb_regnum, reg_offset,
this_size, buffer,
&optim, &unavail))
{
/* Just so garbage doesn't ever shine through. */
memset (buffer, 0, this_size);
if (optim)
set_value_optimized_out (v, 1);
if (unavail)
mark_value_bytes_unavailable (v, offset, this_size);
}
}
else
{
@ -776,8 +788,22 @@ write_pieced_value (struct value *to, struct value *from)
{
if (need_bitwise)
{
get_frame_register_bytes (frame, gdb_regnum, reg_offset,
this_size, buffer);
int optim, unavail;
if (!get_frame_register_bytes (frame, gdb_regnum, reg_offset,
this_size, buffer,
&optim, &unavail))
{
if (optim)
error (_("Can't do read-modify-write to "
"update bitfield; containing word has been "
"optimized out"));
if (unavail)
throw_error (NOT_AVAILABLE_ERROR,
_("Can't do read-modify-write to update "
"bitfield; containing word "
"is unavailable"));
}
copy_bitwise (buffer, dest_offset_bits,
contents, source_offset_bits,
this_size_bits,