1 files changed, 78 insertions, 0 deletions
diff --git a/tools/perf/trace/beauty/clone.c b/tools/perf/trace/beauty/clone.c
new file mode 100644
index 0000000000..f4db894e0a
--- /dev/null
+++ b/tools/perf/trace/beauty/clone.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: LGPL-2.1
+/*
+ * trace/beauty/cone.c
+ *
+ *  Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
+ */
+
+#include "trace/beauty/beauty.h"
+#include <linux/kernel.h>
+#include <sys/types.h>
+#include <uapi/linux/sched.h>
+
+static size_t clone__scnprintf_flags(unsigned long flags, char *bf, size_t size, bool show_prefix)
+{
+	const char *prefix = "CLONE_";
+	int printed = 0;
+
+#define	P_FLAG(n) \
+	if (flags & CLONE_##n) { \
+		printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \
+		flags &= ~CLONE_##n; \
+	}
+
+	P_FLAG(VM);
+	P_FLAG(FS);
+	P_FLAG(FILES);
+	P_FLAG(SIGHAND);
+	P_FLAG(PIDFD);
+	P_FLAG(PTRACE);
+	P_FLAG(VFORK);
+	P_FLAG(PARENT);
+	P_FLAG(THREAD);
+	P_FLAG(NEWNS);
+	P_FLAG(SYSVSEM);
+	P_FLAG(SETTLS);
+	P_FLAG(PARENT_SETTID);
+	P_FLAG(CHILD_CLEARTID);
+	P_FLAG(DETACHED);
+	P_FLAG(UNTRACED);
+	P_FLAG(CHILD_SETTID);
+	P_FLAG(NEWCGROUP);
+	P_FLAG(NEWUTS);
+	P_FLAG(NEWIPC);
+	P_FLAG(NEWUSER);
+	P_FLAG(NEWPID);
+	P_FLAG(NEWNET);
+	P_FLAG(IO);
+	P_FLAG(CLEAR_SIGHAND);
+	P_FLAG(INTO_CGROUP);
+#undef P_FLAG
+
+	if (flags)
+		printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
+
+	return printed;
+}
+
+size_t syscall_arg__scnprintf_clone_flags(char *bf, size_t size, struct syscall_arg *arg)
+{
+	unsigned long flags = arg->val;
+	enum syscall_clone_args {
+		SCC_FLAGS	  = (1 << 0),
+		SCC_CHILD_STACK	  = (1 << 1),
+		SCC_PARENT_TIDPTR = (1 << 2),
+		SCC_CHILD_TIDPTR  = (1 << 3),
+		SCC_TLS		  = (1 << 4),
+	};
+	if (!(flags & CLONE_PARENT_SETTID))
+		arg->mask |= SCC_PARENT_TIDPTR;
+
+	if (!(flags & (CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)))
+		arg->mask |= SCC_CHILD_TIDPTR;
+
+	if (!(flags & CLONE_SETTLS))
+		arg->mask |= SCC_TLS;
+
+	return clone__scnprintf_flags(flags, bf, size, arg->show_string_prefix);
+}