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-rw-r--r--tools/perf/trace/beauty/fcntl.c101
1 files changed, 101 insertions, 0 deletions
diff --git a/tools/perf/trace/beauty/fcntl.c b/tools/perf/trace/beauty/fcntl.c
new file mode 100644
index 000000000..56ef83b3d
--- /dev/null
+++ b/tools/perf/trace/beauty/fcntl.c
@@ -0,0 +1,101 @@
+// SPDX-License-Identifier: LGPL-2.1
+/*
+ * trace/beauty/fcntl.c
+ *
+ * Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
+ */
+
+#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, bool show_prefix)
+{
+ return val ? scnprintf(bf, size, "%s", "0") :
+ scnprintf(bf, size, "%s%s", show_prefix ? "FD_" : "", "CLOEXEC");
+}
+
+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, arg->show_string_prefix);
+}
+
+static size_t fcntl__scnprintf_getlease(unsigned long val, char *bf, size_t size, bool show_prefix)
+{
+ static const char *fcntl_setlease[] = { "RDLCK", "WRLCK", "UNLCK", };
+ static DEFINE_STRARRAY(fcntl_setlease, "F_");
+
+ return strarray__scnprintf(&strarray__fcntl_setlease, bf, size, "%x", show_prefix, 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, arg->show_string_prefix);
+}
+
+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)
+{
+ bool show_prefix = arg->show_string_prefix;
+ 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, show_prefix);
+
+ if (cmd == F_SETFL)
+ return open__scnprintf_flags(arg->val, bf, size, show_prefix);
+
+ if (cmd == F_SETOWN)
+ return syscall_arg__scnprintf_pid(bf, size, arg);
+
+ if (cmd == F_SETLEASE)
+ return fcntl__scnprintf_getlease(arg->val, bf, size, show_prefix);
+ /*
+ * 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);
+}