int segment; /* Index of first segment table entry. */
bool gc; /* Mark/sweep flag. */
+ bool is_executable : 1; /* Use Dwfl::executable_for_core? */
If you're going to use a bitfield, then make every other bool in that
struct a bitfield too. But it's not usually worthwhile. It's
premature microoptimization that privileges memory over CPU, which
might not even be the right tradeoff any more.