diff options
author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-12-11 10:39:30 -0300 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-12-18 12:23:56 -0300 |
commit | ca7ff2c8e7add62b661c414257e7ef12cd40a950 (patch) | |
tree | 92c0aff5a73f1457f77f89d1bbffe7bae6efffc2 /tools/perf | |
parent | 5a1cb7edfbf6ee8087b75d32461775501213a8e9 (diff) |
perf trace: Beautify renameat2's flags argument
# strace -e renameat2 -f perf trace -e rename* mv c /tmp
strace: Process 10824 attached
[pid 10824] renameat2(AT_FDCWD, "c", AT_FDCWD, "/tmp", RENAME_NOREPLACE) = -1 EXDEV (Invalid cross-device link)
[pid 10824] renameat2(AT_FDCWD, "c", AT_FDCWD, "/tmp/c", RENAME_NOREPLACE) = -1 EEXIST (File exists)
1.857 ( 0.008 ms): mv/10824 renameat2(olddfd: CWD, oldname: 0x7ffc72ff3d81, newdfd: CWD, newname: 0x7ffc72ff3d83, flags: NOREPLACE) = -1 EXDEV Invalid cross-device link
2.002 ( 0.006 ms): mv/10824 renameat2(olddfd: CWD, oldname: 0x7ffc72ff3d81, newdfd: CWD, newname: 0x55ad609efcc0, flags: NOREPLACE) = -1 EEXIST File exists
mv: 'c' and '/tmp/c' are the same file
[pid 10824] +++ exited with 1 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10824, si_uid=0, si_status=1, si_utime=0, si_stime=0} ---
+++ exited with 0 +++
#
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-glyt6nzlt1yx56m5bshy6g83@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r-- | tools/perf/builtin-trace.c | 3 | ||||
-rw-r--r-- | tools/perf/trace/beauty/Build | 1 | ||||
-rw-r--r-- | tools/perf/trace/beauty/beauty.h | 3 | ||||
-rw-r--r-- | tools/perf/trace/beauty/renameat.c | 19 |
4 files changed, 25 insertions, 1 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 60c61a89436f..4b3f8407f8d5 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -801,7 +801,8 @@ static struct syscall_fmt { .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, { .name = "renameat2", .arg = { [0] = { .scnprintf = SCA_FDAT, /* olddirfd */ }, - [2] = { .scnprintf = SCA_FDAT, /* newdirfd */ }, }, }, + [2] = { .scnprintf = SCA_FDAT, /* newdirfd */ }, + [4] = { .scnprintf = SCA_RENAMEAT2_FLAGS, /* flags */ }, }, }, { .name = "rt_sigaction", .arg = { [0] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, { .name = "rt_sigprocmask", diff --git a/tools/perf/trace/beauty/Build b/tools/perf/trace/beauty/Build index 304313073242..10c85cd3eb4f 100644 --- a/tools/perf/trace/beauty/Build +++ b/tools/perf/trace/beauty/Build @@ -8,6 +8,7 @@ libperf-y += kcmp.o libperf-y += mount_flags.o libperf-y += pkey_alloc.o libperf-y += prctl.o +libperf-y += renameat.o libperf-y += sockaddr.o libperf-y += socket.o libperf-y += statx.o diff --git a/tools/perf/trace/beauty/beauty.h b/tools/perf/trace/beauty/beauty.h index 039c29039b2c..48ff3ce05325 100644 --- a/tools/perf/trace/beauty/beauty.h +++ b/tools/perf/trace/beauty/beauty.h @@ -144,6 +144,9 @@ size_t syscall_arg__scnprintf_prctl_arg2(char *bf, size_t size, struct syscall_a size_t syscall_arg__scnprintf_prctl_arg3(char *bf, size_t size, struct syscall_arg *arg); #define SCA_PRCTL_ARG3 syscall_arg__scnprintf_prctl_arg3 +size_t syscall_arg__scnprintf_renameat2_flags(char *bf, size_t size, struct syscall_arg *arg); +#define SCA_RENAMEAT2_FLAGS syscall_arg__scnprintf_renameat2_flags + size_t syscall_arg__scnprintf_sockaddr(char *bf, size_t size, struct syscall_arg *arg); #define SCA_SOCKADDR syscall_arg__scnprintf_sockaddr diff --git a/tools/perf/trace/beauty/renameat.c b/tools/perf/trace/beauty/renameat.c new file mode 100644 index 000000000000..02c7207faee6 --- /dev/null +++ b/tools/perf/trace/beauty/renameat.c @@ -0,0 +1,19 @@ +// SPDX-License-Identifier: LGPL-2.1 +// Copyright (C) 2018, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> + +#include "trace/beauty/beauty.h" +#include <uapi/linux/fs.h> + +static size_t renameat2__scnprintf_flags(unsigned long flags, char *bf, size_t size) +{ +#include "trace/beauty/generated/rename_flags_array.c" + static DEFINE_STRARRAY(rename_flags); + + return strarray__scnprintf_flags(&strarray__rename_flags, bf, size, flags); +} + +size_t syscall_arg__scnprintf_renameat2_flags(char *bf, size_t size, struct syscall_arg *arg) +{ + unsigned long flags = arg->val; + return renameat2__scnprintf_flags(flags, bf, size); +} |