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* dwarf2loc.c (read_pieced_value): If a piece occupies part of

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a register, assume the least-signficant part is used.
	(write_pieced_value): Likewise.
This commit is contained in:
Ulrich Weigand
2010-01-04 14:56:16 +00:00
parent 704e916559
commit dcbf108f79
2 changed files with 24 additions and 4 deletions
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6
gdb/ChangeLog
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@ -1,3 +1,9 @@
2010-01-04 Ulrich Weigand <uweigand@de.ibm.com>
* dwarf2loc.c (read_pieced_value): If a piece occupies part of
a register, assume the least-signficant part is used.
(write_pieced_value): Likewise.
2010-01-04 Ulrich Weigand <uweigand@de.ibm.com>
* printcmd.c: Include "arch-utils.h".

22
gdb/dwarf2loc.c
View File

@ -275,11 +275,17 @@ read_pieced_value (struct value *v)
case DWARF_VALUE_REGISTER:
{
struct gdbarch *arch = get_frame_arch (frame);
bfd_byte regval[MAX_REGISTER_SIZE];
int gdb_regnum = gdbarch_dwarf2_reg_to_regnum (arch,
p->v.expr.value);
get_frame_register (frame, gdb_regnum, regval);
memcpy (contents + offset, regval, p->size);
int reg_offset = 0;
if (gdbarch_byte_order (arch) == BFD_ENDIAN_BIG
&& p->size < register_size (arch, gdb_regnum))
/* Big-endian, and we want less than full size. */
reg_offset = register_size (arch, gdb_regnum) - p->size;
get_frame_register_bytes (frame, gdb_regnum, reg_offset, p->size,
contents + offset);
}
break;
@ -346,7 +352,15 @@ write_pieced_value (struct value *to, struct value *from)
{
struct gdbarch *arch = get_frame_arch (frame);
int gdb_regnum = gdbarch_dwarf2_reg_to_regnum (arch, p->v.expr.value);
put_frame_register (frame, gdb_regnum, contents + offset);
int reg_offset = 0;
if (gdbarch_byte_order (arch) == BFD_ENDIAN_BIG
&& p->size < register_size (arch, gdb_regnum))
/* Big-endian, and we want less than full size. */
reg_offset = register_size (arch, gdb_regnum) - p->size;
put_frame_register_bytes (frame, gdb_regnum, reg_offset, p->size,
contents + offset);
}
break;
case DWARF_VALUE_MEMORY: