1 files changed, 57 insertions, 0 deletions
diff --git a/include/trace/syscall.h b/include/trace/syscall.h
new file mode 100644
index 00000000..31966a4f
--- /dev/null
+++ b/include/trace/syscall.h
@@ -0,0 +1,57 @@
+#ifndef _TRACE_SYSCALL_H
+#define _TRACE_SYSCALL_H
+
+#include <linux/tracepoint.h>
+#include <linux/unistd.h>
+#include <linux/ftrace_event.h>
+
+#include <asm/ptrace.h>
+
+
+/*
+ * A syscall entry in the ftrace syscalls array.
+ *
+ * @name: name of the syscall
+ * @syscall_nr: number of the syscall
+ * @nb_args: number of parameters it takes
+ * @types: list of types as strings
+ * @args: list of args as strings (args[i] matches types[i])
+ * @enter_event: associated syscall_enter trace event
+ * @exit_event: associated syscall_exit trace event
+ */
+struct syscall_metadata {
+	const char	*name;
+	int		syscall_nr;
+	int		nb_args;
+	const char	**types;
+	const char	**args;
+	struct list_head enter_fields;
+
+	struct ftrace_event_call *enter_event;
+	struct ftrace_event_call *exit_event;
+};
+
+#ifdef CONFIG_FTRACE_SYSCALLS
+extern unsigned long arch_syscall_addr(int nr);
+extern int init_syscall_trace(struct ftrace_event_call *call);
+
+extern int reg_event_syscall_enter(struct ftrace_event_call *call);
+extern void unreg_event_syscall_enter(struct ftrace_event_call *call);
+extern int reg_event_syscall_exit(struct ftrace_event_call *call);
+extern void unreg_event_syscall_exit(struct ftrace_event_call *call);
+extern int
+ftrace_format_syscall(struct ftrace_event_call *call, struct trace_seq *s);
+enum print_line_t print_syscall_enter(struct trace_iterator *iter, int flags,
+				      struct trace_event *event);
+enum print_line_t print_syscall_exit(struct trace_iterator *iter, int flags,
+				     struct trace_event *event);
+#endif
+
+#ifdef CONFIG_PERF_EVENTS
+int perf_sysenter_enable(struct ftrace_event_call *call);
+void perf_sysenter_disable(struct ftrace_event_call *call);
+int perf_sysexit_enable(struct ftrace_event_call *call);
+void perf_sysexit_disable(struct ftrace_event_call *call);
+#endif
+
+#endif /* _TRACE_SYSCALL_H */