From: Arnaldo Carvalho de Melo <a...@redhat.com>

We'll use it in the upcoming arch_prctl() 'code' arg beautifier.

Cc: Adrian Hunter <adrian.hun...@intel.com>
Cc: Jiri Olsa <jo...@kernel.org>
Cc: Luis Cláudio Gonçalves <lclau...@redhat.com>
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: Wang Nan <wangn...@huawei.com>
Link: https://lkml.kernel.org/n/tip-6e4tj2fjen8qa73gy4u49...@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
 tools/perf/builtin-trace.c       | 26 ++++++++++----------------
 tools/perf/trace/beauty/beauty.h | 12 ++++++++++++
 2 files changed, 22 insertions(+), 16 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 6ba8290a0794..9d30e0f3b7ea 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -386,34 +386,28 @@ static size_t syscall_arg__scnprintf_strarray(char *bf, 
size_t size,
 
 #define SCA_STRARRAY syscall_arg__scnprintf_strarray
 
-struct strarrays {
-       int             nr_entries;
-       struct strarray **entries;
-};
-
-#define DEFINE_STRARRAYS(array) struct strarrays strarrays__##array = { \
-       .nr_entries = ARRAY_SIZE(array), \
-       .entries = array, \
-}
-
-size_t syscall_arg__scnprintf_strarrays(char *bf, size_t size,
-                                       struct syscall_arg *arg)
+size_t strarrays__scnprintf(struct strarrays *sas, char *bf, size_t size, 
const char *intfmt, bool show_prefix, int val)
 {
-       struct strarrays *sas = arg->parm;
        int i;
 
        for (i = 0; i < sas->nr_entries; ++i) {
                struct strarray *sa = sas->entries[i];
-               int idx = arg->val - sa->offset;
+               int idx = val - sa->offset;
 
                if (idx >= 0 && idx < sa->nr_entries) {
                        if (sa->entries[idx] == NULL)
                                break;
-                       return scnprintf(bf, size, "%s%s", 
arg->show_string_prefix ? sa->prefix : "", sa->entries[idx]);
+                       return scnprintf(bf, size, "%s%s", show_prefix ? 
sa->prefix : "", sa->entries[idx]);
                }
        }
 
-       return scnprintf(bf, size, "%d", arg->val);
+       return scnprintf(bf, size, intfmt, val);
+}
+
+size_t syscall_arg__scnprintf_strarrays(char *bf, size_t size,
+                                       struct syscall_arg *arg)
+{
+       return strarrays__scnprintf(arg->parm, bf, size, "%d", 
arg->show_string_prefix, arg->val);
 }
 
 #ifndef AT_FDCWD
diff --git a/tools/perf/trace/beauty/beauty.h b/tools/perf/trace/beauty/beauty.h
index 1a93d9c626ef..58e734b27958 100644
--- a/tools/perf/trace/beauty/beauty.h
+++ b/tools/perf/trace/beauty/beauty.h
@@ -32,6 +32,18 @@ size_t strarray__scnprintf_flags(struct strarray *sa, char 
*bf, size_t size, boo
 struct trace;
 struct thread;
 
+struct strarrays {
+       int             nr_entries;
+       struct strarray **entries;
+};
+
+#define DEFINE_STRARRAYS(array) struct strarrays strarrays__##array = { \
+       .nr_entries = ARRAY_SIZE(array), \
+       .entries = array, \
+}
+
+size_t strarrays__scnprintf(struct strarrays *sas, char *bf, size_t size, 
const char *intfmt, bool show_prefix, int val);
+
 size_t pid__scnprintf_fd(struct trace *trace, pid_t pid, int fd, char *bf, 
size_t size);
 
 extern struct strarray strarray__socket_families;
-- 
2.19.2

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