Commit 83e69b92 authored Jul 15, 2019 by Arnaldo Carvalho de Melo

perf trace: Order -e syscalls table

The ev_qualifier is an array with the syscall ids passed via -e on the
command line, sort it as we'll search it when setting up the
BPF_MAP_TYPE_PROG_ARRAY.

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>
Link: https://lkml.kernel.org/n/tip-c8hprylp3ai6e0z9burn2r3s@git.kernel.org

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent 5ca0b7f5

tools/perf/builtin-trace.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -1528,6 +1528,13 @@ static int trace__read_syscall_info(struct trace *trace, int id)
		return syscall__set_arg_fmts(sc);
		}

		static int intcmp(const void a, const void b)
		{
		const int one = a, another = b;

		return one - another;
		}

		static int trace__validate_ev_qualifier(struct trace *trace)
		{
		int err = 0;
		@@ -1591,6 +1598,7 @@ matches:
		}

		trace->ev_qualifier_ids.nr = nr_used;
		qsort(trace->ev_qualifier_ids.entries, nr_used, sizeof(int), intcmp);
		out:
		if (printed_invalid_prefix)
		pr_debug("\n");

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