On 15 July 2016 at 18:48, Lluís Vilanova <vilan...@ac.upc.edu> wrote: > Peter Maydell writes: > >> On 15 July 2016 at 18:08, Lluís Vilanova <vilan...@ac.upc.edu> wrote: >>> Adds three commandline arguments to the main *-user programs, following >>> what's >>> already available in softmmu: >>> >>> * -trace-enable >>> * -trace-events >>> * -trace-file > >> So when would you want to use these rather than the existing >> -d trace:pattern and -D logfile options? > > These are different logs/traces. The ones you point out are textual traces for > TCG guest/target instructions (and where to write them). The ones I've added > are > for QEMU's tracing infrastructure.
-d trace:pattern works for any tracepoint. > Note that both (-trace vs -d/-D) are also available in system mode (vl.c). True, so consistency probably makes it worth providing both interfaces. thanks -- PMM