On Tue, 2018-03-20 at 13:33 +0100, Mark Wielaard wrote:
> Report an error for why the DW_AT_decl_file or DW_AT_call_file cannot
> be resolved to a file name. This is likely invalid DWARF, a missing
> DW_AT_stmt_list attribute on the CU or a missing .debug_line section.
I pushed this to master with one tiny change, at the end of the error
checking this is added:
diff --git a/src/readelf.c b/src/readelf.c
index 72b5469..fc5aab7 100644
--- a/src/readelf.c
+++ b/src/readelf.c
@@ -6780,6 +6780,8 @@ attr_callback (Dwarf_Attribute *attrp, void *arg)
else
error (0, 0, gettext ("couldn't get DWARF CU: %s"),
dwarf_errmsg (-1));
+ if (valuestr == NULL)
+ valuestr = "???";
}
break;
That way you don't just get a stderr message, but can also see in the
DIE tree output that the actual file name is missing. So with that the
output for a bogus DW_AT_decl_file would look like:
[ 1b] typedef abbrev: 2
name (GNU_str_index) "size_t"
src/readelf: no srcfiles for CU [b]
decl_file (data1) ??? (5)
decl_line (data1) 216
type (ref4) [ 24]
Cheers,
Mark
