On x86_64-linux with -O2 -g gcc creates invalid DW_AT_upper_bound:
struct S
{
int *a;
int b;
int **c;
int d;
};
void foo (struct S *);
void bar (struct S *);
int
baz (void)
{
struct S s;
foo (&s);
{
int a[s.b];
int *c[s.d];
s.a = a;
s.c = c;
bar (&s);
}
return 0;
}
.long .LLST1 # DW_AT_upper_bound
.long .LLST3 # DW_AT_upper_bound
Note that loclistptr isn't valid for DW_AT_upper_bound attribute, unlike
DW_AT_location it can be a constant or reference, like DW_AT_location it can be
a block (exprloc) and unlike DW_AT_location it can't be loclistptr.
Discovered this by readelf -wo cc1 >/dev/null complaining about holes in
.debug_loc.
--
Summary: [4.5 Regression] Wrong DW_AT_upper_bound
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Keywords: wrong-debug
Severity: normal
Priority: P3
Component: debug
AssignedTo: jakub at gcc dot gnu dot org
ReportedBy: jakub at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43237
