/*
* lttng-syscalls.c
*
- * Copyright 2010-2011 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
* LTTng syscall probes.
*
- * Dual LGPL v2.1/GPL v2 license.
+ * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; only
+ * version 2.1 of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/module.h>
#include <asm/ptrace.h>
#include <asm/syscall.h>
+#include "wrapper/tracepoint.h"
#include "lttng-events.h"
#ifndef CONFIG_COMPAT
-static inline int is_compat_task(void)
-{
- return 0;
-}
+# ifndef is_compat_task
+# define is_compat_task() (0)
+# endif
#endif
static
void syscall_entry_probe(void *__data, struct pt_regs *regs, long id);
+/*
+ * Forward declarations for old kernels.
+ */
+struct mmsghdr;
+struct rlimit64;
+struct oldold_utsname;
+struct old_utsname;
+struct sel_arg_struct;
+struct mmap_arg_struct;
+
/*
* Take care of NOARGS not supported by mainline.
*/
*/
#define LTTNG_PACKAGE_BUILD
#define CREATE_TRACE_POINTS
-#define TP_MODULE_OVERRIDE
+#define TP_MODULE_NOINIT
#define TRACE_INCLUDE_PATH ../instrumentation/syscalls/headers
#define PARAMS(args...) args
#undef SC_DEFINE_EVENT_NOARGS
#undef TP_PROBE_CB
-#undef TP_MODULE_OVERRIDE
+#undef TP_MODULE_NOINIT
#undef LTTNG_PACKAGE_BUILD
#undef CREATE_TRACE_POINTS
if (chan_table[i])
continue;
memset(&ev, 0, sizeof(ev));
- strncpy(ev.name, desc->name, LTTNG_SYM_NAME_LEN);
- ev.name[LTTNG_SYM_NAME_LEN - 1] = '\0';
+ strncpy(ev.name, desc->name, LTTNG_KERNEL_SYM_NAME_LEN);
+ ev.name[LTTNG_KERNEL_SYM_NAME_LEN - 1] = '\0';
ev.instrumentation = LTTNG_KERNEL_NOOP;
chan_table[i] = lttng_event_create(chan, &ev, filter,
desc);
&__event_desc___sys_unknown;
memset(&ev, 0, sizeof(ev));
- strncpy(ev.name, desc->name, LTTNG_SYM_NAME_LEN);
- ev.name[LTTNG_SYM_NAME_LEN - 1] = '\0';
+ strncpy(ev.name, desc->name, LTTNG_KERNEL_SYM_NAME_LEN);
+ ev.name[LTTNG_KERNEL_SYM_NAME_LEN - 1] = '\0';
ev.instrumentation = LTTNG_KERNEL_NOOP;
chan->sc_unknown = lttng_event_create(chan, &ev, filter,
desc);
&__event_desc___compat_sys_unknown;
memset(&ev, 0, sizeof(ev));
- strncpy(ev.name, desc->name, LTTNG_SYM_NAME_LEN);
- ev.name[LTTNG_SYM_NAME_LEN - 1] = '\0';
+ strncpy(ev.name, desc->name, LTTNG_KERNEL_SYM_NAME_LEN);
+ ev.name[LTTNG_KERNEL_SYM_NAME_LEN - 1] = '\0';
ev.instrumentation = LTTNG_KERNEL_NOOP;
chan->sc_compat_unknown = lttng_event_create(chan, &ev, filter,
desc);
&__event_desc___exit_syscall;
memset(&ev, 0, sizeof(ev));
- strncpy(ev.name, desc->name, LTTNG_SYM_NAME_LEN);
- ev.name[LTTNG_SYM_NAME_LEN - 1] = '\0';
+ strncpy(ev.name, desc->name, LTTNG_KERNEL_SYM_NAME_LEN);
+ ev.name[LTTNG_KERNEL_SYM_NAME_LEN - 1] = '\0';
ev.instrumentation = LTTNG_KERNEL_NOOP;
chan->sc_exit = lttng_event_create(chan, &ev, filter,
desc);
if (ret)
return ret;
#endif
- ret = tracepoint_probe_register("sys_enter",
+ ret = kabi_2635_tracepoint_probe_register("sys_enter",
(void *) syscall_entry_probe, chan);
if (ret)
return ret;
* We change the name of sys_exit tracepoint due to namespace
* conflict with sys_exit syscall entry.
*/
- ret = tracepoint_probe_register("sys_exit",
+ ret = kabi_2635_tracepoint_probe_register("sys_exit",
(void *) __event_probe__exit_syscall,
chan->sc_exit);
if (ret) {
- WARN_ON_ONCE(tracepoint_probe_unregister("sys_enter",
+ WARN_ON_ONCE(kabi_2635_tracepoint_probe_unregister("sys_enter",
(void *) syscall_entry_probe, chan));
}
return ret;
if (!chan->sc_table)
return 0;
- ret = tracepoint_probe_unregister("sys_exit",
+ ret = kabi_2635_tracepoint_probe_unregister("sys_exit",
(void *) __event_probe__exit_syscall,
chan->sc_exit);
if (ret)
return ret;
- ret = tracepoint_probe_unregister("sys_enter",
+ ret = kabi_2635_tracepoint_probe_unregister("sys_enter",
(void *) syscall_entry_probe, chan);
if (ret)
return ret;