From: Arnaldo Carvalho de Melo <a...@redhat.com>
One more, to reuse the augmented_sockaddr_syscall_enter() macro
introduced from the augmentation of connect's sockaddr arg, also to get
a subset of the struct arg augmentations done using the manual method,
before switching to something automatic, using tracefs's format file or,
even better, BTF containing the syscall args structs.
# perf trace -e tools/perf/examples/bpf/augmented_syscalls.c
0.000 sshd/11479 bind(fd: 3<socket:[170336]>, umyaddr: { .family: NETLINK
}, addrlen: 12)
1.752 sshd/11479 bind(fd: 3<socket:[170336]>, umyaddr: { .family: INET,
port: 22, addr: 0.0.0.0 }, addrlen: 16)
1.924 sshd/11479 bind(fd: 4<socket:[170338]>, umyaddr: { .family: INET6,
port: 22, addr: :: }, addrlen: 28)
^C#
Cc: Adrian Hunter <adrian.hun...@intel.com>
Cc: David Ahern <dsah...@gmail.com>
Cc: Jiri Olsa <jo...@kernel.org>
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: Wang Nan <wangn...@huawei.com>
Link: https://lkml.kernel.org/n/tip-a2drqpahpmc7uwb3n3gj2...@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
tools/perf/builtin-trace.c | 2 ++
tools/perf/examples/bpf/augmented_syscalls.c | 10 ++++++++++
2 files changed, 12 insertions(+)
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index ab2ed30b8dcc..537bb30895df 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -621,6 +621,8 @@ static struct syscall_fmt {
} syscall_fmts[] = {
{ .name = "access",
.arg = { [1] = { .scnprintf = SCA_ACCMODE, /* mode */ }, }, },
+ { .name = "bind",
+ .arg = { [1] = { .scnprintf = SCA_SOCKADDR, /* umyaddr */ }, }, },
{ .name = "bpf",
.arg = { [0] = STRARRAY(cmd, bpf_cmd), }, },
{ .name = "brk", .hexret = true,
diff --git a/tools/perf/examples/bpf/augmented_syscalls.c
b/tools/perf/examples/bpf/augmented_syscalls.c
index 5f417e528419..71edb7ad8698 100644
--- a/tools/perf/examples/bpf/augmented_syscalls.c
+++ b/tools/perf/examples/bpf/augmented_syscalls.c
@@ -122,6 +122,16 @@ int syscall_enter(syscall)(struct
syscall_enter_##syscall##_args *args) \
struct sockaddr;
+struct syscall_enter_bind_args {
+ unsigned long long common_tp_fields;
+ long syscall_nr;
+ long fd;
+ struct sockaddr *addr_ptr;
+ unsigned long addrlen;
+};
+
+augmented_sockaddr_syscall_enter(bind);
+
struct syscall_enter_connect_args {
unsigned long long common_tp_fields;
long syscall_nr;
--
2.14.4
