--trace-syscalls=no|yes show all system calls? [no]
--trace-signals=no|yes show signal handling details? [no]
--trace-symtab=no|yes show symbol table details? [no]
+ --trace-symtab-patt=<patt> limit debuginfo tracing to obj name <patt>
--trace-cfi=no|yes show call-frame-info details? [no]
+ --debug-dump=syms mimic /usr/bin/readelf --syms
+ --debug-dump=line mimic /usr/bin/readelf --debug-dump=line
+ --debug-dump=frames mimic /usr/bin/readelf --debug-dump=frames
--trace-redir=no|yes show redirection details? [no]
--trace-sched=no|yes show thread scheduler details? [no]
--wait-for-gdb=yes|no pause on startup to wait for gdb attach