renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-19 02:34:01 +08:00
Code

perf trace beauty: Beautify bind's sockaddr arg

Browse Source 
By reusing the "connect" BPF collector.

Testing it system wide and stopping/starting sshd:

  # perf trace -e bind
  LLVM: dumping /home/acme/git/perf/tools/perf/examples/bpf/augmented_raw_syscalls.o
  DNS Res~er #18/15132 bind(243, { .family: PF_NETLINK }, 12)  = 0
  DNS Res~er #19/4833 bind(247, { .family: PF_NETLINK }, 12)  = 0
  DNS Res~er #19/4833 bind(238, { .family: PF_NETLINK }, 12)  = 0
  DNS Res~er #18/15132 bind(243, { .family: PF_NETLINK }, 12)  = 0
  DNS Res~er #18/10327 bind(258, { .family: PF_NETLINK }, 12)  = 0
  :6507/6507 bind(24, { .family: PF_NETLINK }, 12)   = 0
  DNS Res~er #19/4833 bind(238, { .family: PF_NETLINK }, 12)  = 0
  DNS Res~er #18/15132 bind(242, { .family: PF_NETLINK }, 12)  = 0
  sshd/6514 bind(3, { .family: PF_NETLINK }, 12)    = 0
  sshd/6514 bind(5, { .family: PF_INET, port: 22, addr: 0.0.0.0 }, 16) = 0
  sshd/6514 bind(7, { .family: PF_INET6, port: 22, addr: :: }, 28) = 0
  DNS Res~er #18/10327 bind(229, { .family: PF_NETLINK }, 12)  = 0
  DNS Res~er #18/15132 bind(231, { .family: PF_NETLINK }, 12)  = 0
  DNS Res~er #19/4833 bind(229, { .family: PF_NETLINK }, 12)  = 0
  ^C#

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-m2hmxqrckxxw2ciki0tu889u@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2019-07-16 17:38:26 -03:00
parent 3c475bc021
commit 247dd65b90
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
tools/perf/builtin-trace.c
View File

@ -710,8 +710,10 @@ static struct syscall_fmt {
.arg = { [0] = { .scnprintf = SCA_X86_ARCH_PRCTL_CODE, /* code */ },
[1] = { .scnprintf = SCA_PTR, /* arg2 */ }, }, },
{ .name = "bind",
.bpf_prog_name = { .sys_enter = "!syscalls:sys_enter_connect", },
.arg = { [0] = { .scnprintf = SCA_INT, /* fd */ },
[1] = { .scnprintf = SCA_SOCKADDR, /* umyaddr */ }, }, },
[1] = { .scnprintf = SCA_SOCKADDR, /* umyaddr */ },
[2] = { .scnprintf = SCA_INT, /* addrlen */ }, }, },
{ .name = "bpf",
.arg = { [0] = STRARRAY(cmd, bpf_cmd), }, },
{ .name = "brk", .hexret = true,