Commits
Arnaldo Carvalho de Melo committed f76214f9378
perf trace: Check if the raw_syscalls:sys_{enter,exit} are setup before setting tp filter While updating 'perf trace' on an machine with an old precompiled augmented_raw_syscalls.o that didn't setup the syscall map the new 'perf trace' codebase notices the augmented_raw_syscalls.o eBPF event, decides to use it instead of the old raw_syscalls:sys_{enter,exit} method, but then because we don't have the syscall map tries to set the tracepoint filter on the sys_{enter,exit} evsels, that are NULL, segfaulting. Make the code more robust by checking it those tracepoints have their respective evsels in place before trying to set the tp filter. With this we still get everything to work, just not setting up the syscall filters, which is better than a segfault. Now to update the precompiled augmented_raw_syscalls.o and continue development :-) Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-3ft5rjdl05wgz2pwpx2z8btu@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>