While compiling elfutils with gcc (GCC) 4.4.0 20090506 (Red Hat 4.4.0-4) I found some const/aliasing issues that gcc pointed out as follows:
dwarf_getaranges.c: In function dwarf_getaranges: libdwP.h:540: error: dereferencing pointer readp.44 does break strict-aliasing rules dwarf_getaranges.c:152: note: initialized from here libdwP.h:519: error: dereferencing pointer readp.44 does break strict-aliasing rules dwarf_getaranges.c:174: note: initialized from here Note the .44 added to the variable name. Although it wasn't too hard to fix the issues pointed out (the elfutils code in git has already been fixed up), the warning message was somewhat confusing because of these internal names. Unfortunately I wasn't able to come up with a really small example showing this. So I'll attach the preprocessed -E code. See also this elfutils mailinglist discussion: https://fedorahosted.org/pipermail/elfutils-devel/2009-June/000368.html -- Summary: strict-aliasing warning contains internal variable name Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: mark at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40517
