Split syscall tracepoint generation in their own files

[lttng-modules.git] / src / lttng-syscalls-exit-table.c

diff --git a/src/lttng-syscalls-exit-table.c b/src/lttng-syscalls-exit-table.c
new file mode 100644 (file)
index 0000000..aaaa331
--- /dev/null
+++ b/src/lttng-syscalls-exit-table.c
@@ -0,0 +1,110 @@
+/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
+ *
+ * lttng-syscalls-exit-table.c
+ *
+ * LTTng syscall exit probes.
+ *
+ * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright (C) 2021 Francis Deslauriers <francis.deslauriers@efficios.com>
+ */
+
+#include <wrapper/tracepoint.h>
+
+#include "lttng-syscalls.h"
+
+
+#ifdef IA32_NR_syscalls
+#define NR_compat_syscalls IA32_NR_syscalls
+#else
+#define NR_compat_syscalls NR_syscalls
+#endif
+
+/*
+ * Create LTTng tracepoint probes.
+ */
+#define LTTNG_PACKAGE_BUILD
+#define CREATE_TRACE_POINTS
+#define TP_MODULE_NOINIT
+#define TRACE_INCLUDE_PATH instrumentation/syscalls/headers
+
+#define PARAMS(args...)        args
+
+#define SC_EXIT
+
+#undef sc_in
+#define sc_in(...)     __VA_ARGS__
+#undef sc_out
+#define sc_out(...)
+#undef sc_inout
+#define sc_inout(...)  __VA_ARGS__
+#undef sc_exit
+#define sc_exit(...)           __VA_ARGS__
+
+#define LTTNG_TRACEPOINT_TYPE_EXTERN
+
+#include <lttng/events-reset.h>
+
+/* Hijack probe callback for system call enter */
+#undef TP_PROBE_CB
+#define TP_PROBE_CB(_template)         &syscall_exit_event_probe
+#define SC_LTTNG_TRACEPOINT_EVENT(_name, _proto, _args, _fields) \
+       LTTNG_TRACEPOINT_EVENT(syscall_exit_##_name, PARAMS(_proto), PARAMS(_args), \
+               PARAMS(_fields))
+#define SC_LTTNG_TRACEPOINT_EVENT_CODE(_name, _proto, _args, _locvar, _code_pre, _fields, _code_post) \
+       LTTNG_TRACEPOINT_EVENT_CODE(syscall_exit_##_name, PARAMS(_proto), PARAMS(_args), \
+               PARAMS(_locvar), PARAMS(_code_pre),                             \
+               PARAMS(_fields), PARAMS(_code_post))
+#define SC_LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS(_name, _fields) \
+       LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS(syscall_exit_##_name, PARAMS(_fields))
+#define SC_LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS(_template, _name)            \
+       LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS(syscall_exit_##_template, syscall_exit_##_name)
+
+#define SC_LTTNG_TRACEPOINT_ENUM(_name, _values) \
+       LTTNG_TRACEPOINT_ENUM(_name, PARAMS(_values))
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM syscall_exit_integers
+#define TRACE_INCLUDE_FILE syscalls_integers
+#include <instrumentation/syscalls/headers/syscalls_integers.h>
+#undef TRACE_INCLUDE_FILE
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM syscall_exit_pointers
+#define TRACE_INCLUDE_FILE syscalls_pointers
+#include <instrumentation/syscalls/headers/syscalls_pointers.h>
+#undef TRACE_INCLUDE_FILE
+#undef TRACE_SYSTEM
+#undef SC_LTTNG_TRACEPOINT_ENUM
+#undef SC_LTTNG_TRACEPOINT_EVENT_CODE
+#undef SC_LTTNG_TRACEPOINT_EVENT
+#undef SC_LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS
+#undef SC_LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS
+#undef TP_PROBE_CB
+#undef _TRACE_SYSCALLS_INTEGERS_H
+#undef _TRACE_SYSCALLS_POINTERS_H
+
+#define CREATE_SYSCALL_TABLE
+
+#undef sc_exit
+#define sc_exit(...)
+
+#undef TRACE_SYSCALL_TABLE
+#define TRACE_SYSCALL_TABLE(_template, _name, _nr, _nrargs)    \
+       [ _nr ] = {                                             \
+               .event_func = __event_probe__syscall_exit_##_template, \
+               .nrargs = (_nrargs),                            \
+               .fields = __event_fields___syscall_exit_##_template, \
+               .desc = &__event_desc___syscall_exit_##_name,   \
+       },
+
+/* Event syscall enter tracing table */
+static const struct trace_syscall_entry _sc_exit_table[] = {
+#include <instrumentation/syscalls/headers/syscalls_integers.h>
+#include <instrumentation/syscalls/headers/syscalls_pointers.h>
+};
+
+const struct trace_syscall_table sc_exit_table = {
+       .table = _sc_exit_table,
+       .len = ARRAY_SIZE(_sc_exit_table),
+};
+#undef SC_EXIT
+
+#undef CREATE_SYSCALL_TABLE