+/*
+ * lttng-compat-syscalls.c
+ *
+ * Copyright 2010-2011 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * LTTng compat syscall probes.
+ *
+ * Dual LGPL v2.1/GPL v2 license.
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/compat.h>
+#include <asm/ptrace.h>
+#include <asm/syscall.h>
+
+#include "ltt-events.h"
+
+extern
+void syscall_entry_probe(void *__data, struct pt_regs *regs, long id);
+
+/*
+ * Take care of NOARGS not supported by mainline.
+ */
+#define DECLARE_EVENT_CLASS_NOARGS(name, tstruct, assign, print)
+#define DEFINE_EVENT_NOARGS(template, name)
+#define TRACE_EVENT_NOARGS(name, struct, assign, print)
+
+/*
+ * Create LTTng tracepoint probes.
+ */
+#define LTTNG_PACKAGE_BUILD
+#define CREATE_TRACE_POINTS
+#define TP_MODULE_OVERRIDE
+#define TRACE_INCLUDE_PATH ../instrumentation/syscalls/headers
+
+/* Hijack probe callback for system calls */
+#define TP_PROBE_CB(_template) &syscall_entry_probe
+#include "instrumentation/syscalls/headers/compat_syscalls_integers.h"
+#include "instrumentation/syscalls/headers/compat_syscalls_pointers.h"
+#undef TP_PROBE_CB
+
+#undef TP_MODULE_OVERRIDE
+#undef LTTNG_PACKAGE_BUILD
+#undef CREATE_TRACE_POINTS
+
+#undef TRACE_SYSCALL_TABLE
+#define TRACE_SYSCALL_TABLE(_template, _name, _nr, _nrargs) \
+ [ _nr ] = { \
+ .func = __event_probe__##_template, \
+ .nrargs = (_nrargs), \
+ .fields = __event_fields___##_template, \
+ .desc = &__event_desc___##_name, \
+ },
+
+#define CREATE_SYSCALL_TABLE
+
+/* Create compatibility syscall table */
+const struct trace_syscall_entry compat_sc_table[] = {
+#include "instrumentation/syscalls/headers/compat_syscalls_integers.h"
+#include "instrumentation/syscalls/headers/compat_syscalls_pointers.h"
+};
+const size_t compat_sc_table_len = ARRAY_SIZE(compat_sc_table);
+
+#undef CREATE_SYSCALL_TABLE