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Subject[PATCH 102/161] perf trace: Add helper for syscalls with a single strarray arg
Date
From: Arnaldo Carvalho de Melo <acme@redhat.com>

In such cases just stating the (arg, name, array) is enough, reducing
the size of the syscall formatters table.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-3k53p6dv2sh4ydsc5k5otoia@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-trace.c | 40 +++++++++++++---------------------------
1 file changed, 13 insertions(+), 27 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 2007c8c2c52b..8855207deae8 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -562,6 +562,10 @@ static size_t syscall_arg__scnprintf_signum(char *bf, size_t size, struct syscal

#define SCA_SIGNUM syscall_arg__scnprintf_signum

+#define STRARRAY(arg, name, array) \
+ .arg_scnprintf = { [arg] = SCA_STRARRAY, }, \
+ .arg_parm = { [arg] = &strarray__##array, }
+
static struct syscall_fmt {
const char *name;
const char *alias;
@@ -577,33 +581,23 @@ static struct syscall_fmt {
{ .name = "brk", .hexret = true,
.arg_scnprintf = { [0] = SCA_HEX, /* brk */ }, },
{ .name = "connect", .errmsg = true, },
- { .name = "epoll_ctl", .errmsg = true,
- .arg_scnprintf = { [1] = SCA_STRARRAY, /* op */ },
- .arg_parm = { [1] = &strarray__epoll_ctl_ops, /* op */ }, },
+ { .name = "epoll_ctl", .errmsg = true, STRARRAY(1, op, epoll_ctl_ops), },
{ .name = "eventfd2", .errmsg = true,
.arg_scnprintf = { [1] = SCA_EFD_FLAGS, /* flags */ }, },
- { .name = "fcntl", .errmsg = true,
- .arg_scnprintf = { [1] = SCA_STRARRAY, /* cmd */ },
- .arg_parm = { [1] = &strarray__fcntl_cmds, /* cmd */ }, },
+ { .name = "fcntl", .errmsg = true, STRARRAY(1, cmd, fcntl_cmds), },
{ .name = "flock", .errmsg = true,
.arg_scnprintf = { [1] = SCA_FLOCK, /* cmd */ }, },
{ .name = "fstat", .errmsg = true, .alias = "newfstat", },
{ .name = "fstatat", .errmsg = true, .alias = "newfstatat", },
{ .name = "futex", .errmsg = true,
.arg_scnprintf = { [1] = SCA_FUTEX_OP, /* op */ }, },
- { .name = "getitimer", .errmsg = true,
- .arg_scnprintf = { [0] = SCA_STRARRAY, /* which */ },
- .arg_parm = { [0] = &strarray__itimers, /* which */ }, },
- { .name = "getrlimit", .errmsg = true,
- .arg_scnprintf = { [0] = SCA_STRARRAY, /* resource */ },
- .arg_parm = { [0] = &strarray__rlimit_resources, /* resource */ }, },
+ { .name = "getitimer", .errmsg = true, STRARRAY(0, which, itimers), },
+ { .name = "getrlimit", .errmsg = true, STRARRAY(0, resource, rlimit_resources), },
{ .name = "ioctl", .errmsg = true,
.arg_scnprintf = { [2] = SCA_HEX, /* arg */ }, },
{ .name = "kill", .errmsg = true,
.arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },
- { .name = "lseek", .errmsg = true,
- .arg_scnprintf = { [2] = SCA_STRARRAY, /* whence */ },
- .arg_parm = { [2] = &strarray__whences, /* whence */ }, },
+ { .name = "lseek", .errmsg = true, STRARRAY(2, whence, whences), },
{ .name = "lstat", .errmsg = true, .alias = "newlstat", },
{ .name = "madvise", .errmsg = true,
.arg_scnprintf = { [0] = SCA_HEX, /* start */
@@ -629,9 +623,7 @@ static struct syscall_fmt {
{ .name = "poll", .errmsg = true, .timeout = true, },
{ .name = "ppoll", .errmsg = true, .timeout = true, },
{ .name = "pread", .errmsg = true, .alias = "pread64", },
- { .name = "prlimit64", .errmsg = true,
- .arg_scnprintf = { [1] = SCA_STRARRAY, /* resource */ },
- .arg_parm = { [1] = &strarray__rlimit_resources, /* resource */ }, },
+ { .name = "prlimit64", .errmsg = true, STRARRAY(1, resource, rlimit_resources), },
{ .name = "pwrite", .errmsg = true, .alias = "pwrite64", },
{ .name = "read", .errmsg = true, },
{ .name = "recvfrom", .errmsg = true,
@@ -642,9 +634,7 @@ static struct syscall_fmt {
.arg_scnprintf = { [2] = SCA_MSG_FLAGS, /* flags */ }, },
{ .name = "rt_sigaction", .errmsg = true,
.arg_scnprintf = { [0] = SCA_SIGNUM, /* sig */ }, },
- { .name = "rt_sigprocmask", .errmsg = true,
- .arg_scnprintf = { [0] = SCA_STRARRAY, /* how */ },
- .arg_parm = { [0] = &strarray__sighow, /* how */ }, },
+ { .name = "rt_sigprocmask", .errmsg = true, STRARRAY(0, how, sighow), },
{ .name = "rt_sigqueueinfo", .errmsg = true,
.arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },
{ .name = "rt_tgsigqueueinfo", .errmsg = true,
@@ -656,12 +646,8 @@ static struct syscall_fmt {
.arg_scnprintf = { [2] = SCA_MSG_FLAGS, /* flags */ }, },
{ .name = "sendto", .errmsg = true,
.arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, },
- { .name = "setitimer", .errmsg = true,
- .arg_scnprintf = { [0] = SCA_STRARRAY, /* which */ },
- .arg_parm = { [0] = &strarray__itimers, /* which */ }, },
- { .name = "setrlimit", .errmsg = true,
- .arg_scnprintf = { [0] = SCA_STRARRAY, /* resource */ },
- .arg_parm = { [0] = &strarray__rlimit_resources, /* resource */ }, },
+ { .name = "setitimer", .errmsg = true, STRARRAY(0, which, itimers), },
+ { .name = "setrlimit", .errmsg = true, STRARRAY(0, resource, rlimit_resources), },
{ .name = "socket", .errmsg = true,
.arg_scnprintf = { [0] = SCA_STRARRAY, /* family */
[1] = SCA_SK_TYPE, /* type */ },
--
1.8.1.4


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