From: Arnaldo Carvalho de Melo Date: Thu, 26 Jul 2018 12:26:13 +0000 (-0300) Subject: perf trace: Beautify the AF_INET & AF_INET6 'socket' syscall 'protocol' args X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=162d3edbe591a97939516b546162b9ba05ec62cb;p=openwrt%2Fstaging%2Fblogic.git perf trace: Beautify the AF_INET & AF_INET6 'socket' syscall 'protocol' args For instance: $ trace -e socket* ssh sandy 0.000 ( 0.031 ms): ssh/19919 socket(family: LOCAL, type: STREAM|CLOEXEC|NONBLOCK ) = 3 0.052 ( 0.015 ms): ssh/19919 socket(family: LOCAL, type: STREAM|CLOEXEC|NONBLOCK ) = 3 1.568 ( 0.020 ms): ssh/19919 socket(family: LOCAL, type: STREAM|CLOEXEC|NONBLOCK ) = 3 1.603 ( 0.012 ms): ssh/19919 socket(family: LOCAL, type: STREAM|CLOEXEC|NONBLOCK ) = 3 1.699 ( 0.014 ms): ssh/19919 socket(family: LOCAL, type: STREAM|CLOEXEC|NONBLOCK ) = 3 1.724 ( 0.012 ms): ssh/19919 socket(family: LOCAL, type: STREAM|CLOEXEC|NONBLOCK ) = 3 1.804 ( 0.020 ms): ssh/19919 socket(family: INET, type: STREAM, protocol: TCP ) = 3 17.549 ( 0.098 ms): ssh/19919 socket(family: LOCAL, type: STREAM ) = 4 acme@sandy's password: Just like with other syscall args, the common bits are supressed so that the output is more compact, i.e. we use "TCP" instead of "IPPROTO_TCP", but we can make this show the original constant names if we like it by using some command line knob or ~/.perfconfig "[trace]" section variable. Also needed is to make perf's event parser accept things like: $ perf trace -e socket*/protocol=TCP/ By using both the tracefs event 'format' files and these tables built from the kernel sources. Cc: Adrian Hunter Cc: David Ahern Cc: Jiri Olsa Cc: Namhyung Kim Cc: Wang Nan Link: https://lkml.kernel.org/n/tip-l39jz1vnyda0b6jsufuc8bz7@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 632ef5f8f060..9aca65e6b9aa 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -761,10 +761,12 @@ static struct syscall_fmt { .arg = { [0] = STRARRAY(resource, rlimit_resources), }, }, { .name = "socket", .arg = { [0] = STRARRAY(family, socket_families), - [1] = { .scnprintf = SCA_SK_TYPE, /* type */ }, }, }, + [1] = { .scnprintf = SCA_SK_TYPE, /* type */ }, + [2] = { .scnprintf = SCA_SK_PROTO, /* protocol */ }, }, }, { .name = "socketpair", .arg = { [0] = STRARRAY(family, socket_families), - [1] = { .scnprintf = SCA_SK_TYPE, /* type */ }, }, }, + [1] = { .scnprintf = SCA_SK_TYPE, /* type */ }, + [2] = { .scnprintf = SCA_SK_PROTO, /* protocol */ }, }, }, { .name = "stat", .alias = "newstat", }, { .name = "statx", .arg = { [0] = { .scnprintf = SCA_FDAT, /* fdat */ },