1 files changed, 100 insertions, 0 deletions
diff --git a/tools/perf/trace/beauty/fcntl.c b/tools/perf/trace/beauty/fcntl.c
new file mode 100644
index 000000000000..9e8900c13cb1
--- /dev/null
+++ b/tools/perf/trace/beauty/fcntl.c
@@ -0,0 +1,100 @@
+/*
+ * trace/beauty/fcntl.c
+ *
+ *  Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
+ *
+ * Released under the GPL v2. (and only v2, not any later version)
+ */
+
+#include "trace/beauty/beauty.h"
+#include <linux/kernel.h>
+#include <uapi/linux/fcntl.h>
+
+static size_t fcntl__scnprintf_getfd(unsigned long val, char *bf, size_t size)
+{
+	return scnprintf(bf, size, "%s", val ? "CLOEXEC" : "0");
+}
+
+static size_t syscall_arg__scnprintf_fcntl_getfd(char *bf, size_t size, struct syscall_arg *arg)
+{
+	return fcntl__scnprintf_getfd(arg->val, bf, size);
+}
+
+static size_t fcntl__scnprintf_getlease(unsigned long val, char *bf, size_t size)
+{
+	static const char *fcntl_setlease[] = { "RDLCK", "WRLCK", "UNLCK", };
+	static DEFINE_STRARRAY(fcntl_setlease);
+
+	return strarray__scnprintf(&strarray__fcntl_setlease, bf, size, "%x", val);
+}
+
+static size_t syscall_arg__scnprintf_fcntl_getlease(char *bf, size_t size, struct syscall_arg *arg)
+{
+	return fcntl__scnprintf_getlease(arg->val, bf, size);
+}
+
+size_t syscall_arg__scnprintf_fcntl_cmd(char *bf, size_t size, struct syscall_arg *arg)
+{
+	if (arg->val == F_GETFL) {
+		syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_open_flags);
+		goto mask_arg;
+	}
+	if (arg->val == F_GETFD) {
+		syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_fcntl_getfd);
+		goto mask_arg;
+	}
+	if (arg->val == F_DUPFD_CLOEXEC || arg->val == F_DUPFD) {
+		syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_fd);
+		goto out;
+	}
+	if (arg->val == F_GETOWN) {
+		syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_pid);
+		goto mask_arg;
+	}
+	if (arg->val == F_GETLEASE) {
+		syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_fcntl_getlease);
+		goto mask_arg;
+	}
+	/*
+	 * Some commands ignore the third fcntl argument, "arg", so mask it
+	 */
+	if (arg->val == F_GET_SEALS ||
+	    arg->val == F_GETSIG) {
+mask_arg:
+		arg->mask |= (1 << 2);
+	}
+out:
+	return syscall_arg__scnprintf_strarrays(bf, size, arg);
+}
+
+size_t syscall_arg__scnprintf_fcntl_arg(char *bf, size_t size, struct syscall_arg *arg)
+{
+	int cmd = syscall_arg__val(arg, 1);
+
+	if (cmd == F_DUPFD)
+		return syscall_arg__scnprintf_fd(bf, size, arg);
+
+	if (cmd == F_SETFD)
+		return fcntl__scnprintf_getfd(arg->val, bf, size);
+
+	if (cmd == F_SETFL)
+		return open__scnprintf_flags(arg->val, bf, size);
+
+	if (cmd == F_SETOWN)
+		return syscall_arg__scnprintf_pid(bf, size, arg);
+
+	if (cmd == F_SETLEASE)
+		return fcntl__scnprintf_getlease(arg->val, bf, size);
+	/*
+	 * We still don't grab the contents of pointers on entry or exit,
+	 * so just print them as hex numbers
+	 */
+	if (cmd == F_SETLK || cmd == F_SETLKW || cmd == F_GETLK ||
+	    cmd == F_OFD_SETLK || cmd == F_OFD_SETLKW || cmd == F_OFD_GETLK ||
+	    cmd == F_GETOWN_EX || cmd == F_SETOWN_EX ||
+	    cmd == F_GET_RW_HINT || cmd == F_SET_RW_HINT ||
+	    cmd == F_GET_FILE_RW_HINT || cmd == F_SET_FILE_RW_HINT)
+		return syscall_arg__scnprintf_hex(bf, size, arg);
+
+	return syscall_arg__scnprintf_long(bf, size, arg);
+}