From aec1930b0f6f281a0ca038cd03aceace3fe0bb61 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 27 Sep 2012 13:16:00 -0300 Subject: [PATCH] perf trace: Add aliases for some syscalls What we get from audit_syscall_to_name isn't what we find in the syscalls: tracepoint events, so add the alias that allows the tool to find prctl, fstat, fstatat and stat. Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Mike Galbraith Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-3m9su7jhwnxvepnr3ne1du5k@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-trace.c | 26 ++++++++++++++++++-------- 1 file changed, 18 insertions(+), 8 deletions(-) diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 5fa1820cc969..8f113dab8bf1 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -9,15 +9,20 @@ static struct syscall_fmt { const char *name; + const char *alias; bool errmsg; bool timeout; } syscall_fmts[] = { - { .name = "futex", .errmsg = true, }, - { .name = "poll", .errmsg = true, .timeout = true, }, - { .name = "ppoll", .errmsg = true, .timeout = true, }, - { .name = "read", .errmsg = true, }, - { .name = "recvfrom", .errmsg = true, }, - { .name = "select", .errmsg = true, .timeout = true, }, + { .name = "arch_prctl", .errmsg = true, .alias = "prctl", }, + { .name = "fstat", .errmsg = true, .alias = "newfstat", }, + { .name = "fstatat", .errmsg = true, .alias = "newfstatat", }, + { .name = "futex", .errmsg = true, }, + { .name = "poll", .errmsg = true, .timeout = true, }, + { .name = "ppoll", .errmsg = true, .timeout = true, }, + { .name = "read", .errmsg = true, }, + { .name = "recvfrom", .errmsg = true, }, + { .name = "select", .errmsg = true, .timeout = true, }, + { .name = "stat", .errmsg = true, .alias = "newstat", }, }; static int syscall_fmt__cmp(const void *name, const void *fmtp) @@ -74,10 +79,15 @@ static int trace__read_syscall_info(struct trace *trace, int id) if (sc->name == NULL) return -1; - snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name); + sc->fmt = syscall_fmt__find(sc->name); + snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name); sc->tp_format = event_format__new("syscalls", tp_name); - sc->fmt = syscall_fmt__find(sc->name); + + if (sc->tp_format == NULL && sc->fmt && sc->fmt->alias) { + snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->fmt->alias); + sc->tp_format = event_format__new("syscalls", tp_name); + } return sc->tp_format != NULL ? 0 : -1; } -- 2.20.1