From: Arnaldo Carvalho de Melo <[email protected]> So that the index passed doesn't have to start at zero, being decremented from an offset specified when declaring the strarray before being used as the real array index.
Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/perf/builtin-trace.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index addc3e11f999..7424298b87e3 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -44,6 +44,7 @@ struct syscall_arg { }; struct strarray { + int offset; int nr_entries; const char **entries; }; @@ -53,14 +54,20 @@ struct strarray { .entries = array, \ } +#define DEFINE_STRARRAY_OFFSET(array, off) struct strarray strarray__##array = { \ + .offset = off, \ + .nr_entries = ARRAY_SIZE(array), \ + .entries = array, \ +} + static size_t syscall_arg__scnprintf_strarray(char *bf, size_t size, struct syscall_arg *arg) { - int idx = arg->val; struct strarray *sa = arg->parm; + int idx = arg->val - sa->offset; if (idx < 0 || idx >= sa->nr_entries) - return scnprintf(bf, size, "%d", idx); + return scnprintf(bf, size, "%d", arg->val); return scnprintf(bf, size, "%s", sa->entries[idx]); } @@ -288,8 +295,8 @@ static size_t syscall_arg__scnprintf_futex_op(char *bf, size_t size, struct sysc #define SCA_FUTEX_OP syscall_arg__scnprintf_futex_op -static const char *epoll_ctl_ops[] = { [1] = "ADD", "DEL", "MOD", }; -static DEFINE_STRARRAY(epoll_ctl_ops); +static const char *epoll_ctl_ops[] = { "ADD", "DEL", "MOD", }; +static DEFINE_STRARRAY_OFFSET(epoll_ctl_ops, 1); static const char *itimers[] = { "REAL", "VIRTUAL", "PROF", }; static DEFINE_STRARRAY(itimers); -- 1.8.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
