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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>
alistair/sunxi64-5.4-dsi
Arnaldo Carvalho de Melo 2019-07-15 17:28:25 -03:00
parent 5ca0b7f500
commit 83e69b92b1
1 changed files with 8 additions and 0 deletions
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8
tools/perf/builtin-trace.c
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@ -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");