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* gdb/dwarf2loc.c (read_pieced_value, write_pieced_value, 

dwarf2_evaluate_loc_desc): Handle not being able to access DWARF
	registers gracefully.
This commit is contained in:
Matthew Gretton-Dann 2010-05-04 09:54:18 +00:00
parent 2f1bdd26c4
commit 63b4f126d1
2 changed files with 36 additions and 5 deletions
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6
gdb/ChangeLog
View File

@ -1,3 +1,9 @@
2010-05-04 Matthew Gretton-Dann <matthew.gretton-dann@arm.com>
* dwarf2loc.c (read_pieced_value, write_pieced_value,
dwarf2_evaluate_loc_desc): Handle not being able to access DWARF
registers gracefully.
2010-05-04 Matthew Gretton-Dann <matthew.gretton-dann@arm.com>
* exec.c (print_section_info): Display entry point without arch

35
gdb/dwarf2loc.c
View File

@ -284,8 +284,16 @@ read_pieced_value (struct value *v)
/* 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);
if (gdb_regnum != -1)
{
get_frame_register_bytes (frame, gdb_regnum, reg_offset,
p->size, contents + offset);
}
else
{
error (_("Unable to access DWARF register number %s"),
paddress (arch, p->v.expr.value));
}
}
break;
@ -356,8 +364,16 @@ write_pieced_value (struct value *to, struct value *from)
/* 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);
if (gdb_regnum != -1)
{
put_frame_register_bytes (frame, gdb_regnum, reg_offset,
p->size, contents + offset);
}
else
{
error (_("Unable to write to DWARF register number %s"),
paddress (arch, p->v.expr.value));
}
}
break;
case DWARF_VALUE_MEMORY:
@ -454,7 +470,16 @@ dwarf2_evaluate_loc_desc (struct symbol *var, struct frame_info *frame,
struct gdbarch *arch = get_frame_arch (frame);
CORE_ADDR dwarf_regnum = dwarf_expr_fetch (ctx, 0);
int gdb_regnum = gdbarch_dwarf2_reg_to_regnum (arch, dwarf_regnum);
retval = value_from_register (SYMBOL_TYPE (var), gdb_regnum, frame);
if (gdb_regnum != -1)
{
retval = value_from_register (SYMBOL_TYPE (var),
gdb_regnum, frame);
}
else
{
error (_("Unable to access DWARF register number %s"),
paddress (arch, dwarf_regnum));
}
}
break;