#include <linux/module.h>
#include <linux/slab.h>
#include <linux/compat.h>
+#include <linux/err.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
ev.instrumentation = LTTNG_KERNEL_NOOP;
chan_table[i] = lttng_event_create(chan, &ev, filter,
desc);
- if (!chan_table[i]) {
+ WARN_ON_ONCE(!chan_table[i]);
+ if (IS_ERR(chan_table[i])) {
/*
* If something goes wrong in event registration
* after the first one, we have no choice but to
* leave the previous events in there, until
* deleted by session teardown.
*/
- return -EINVAL;
+ return PTR_ERR(chan_table[i]);
}
}
return 0;
ev.instrumentation = LTTNG_KERNEL_NOOP;
chan->sc_unknown = lttng_event_create(chan, &ev, filter,
desc);
- if (!chan->sc_unknown) {
- return -EINVAL;
+ WARN_ON_ONCE(!chan->sc_unknown);
+ if (IS_ERR(chan->sc_unknown)) {
+ return PTR_ERR(chan->sc_unknown);
}
}
ev.instrumentation = LTTNG_KERNEL_NOOP;
chan->sc_compat_unknown = lttng_event_create(chan, &ev, filter,
desc);
- if (!chan->sc_compat_unknown) {
- return -EINVAL;
+ WARN_ON_ONCE(!chan->sc_unknown);
+ if (IS_ERR(chan->sc_compat_unknown)) {
+ return PTR_ERR(chan->sc_compat_unknown);
}
}
ev.instrumentation = LTTNG_KERNEL_NOOP;
chan->sc_exit = lttng_event_create(chan, &ev, filter,
desc);
- if (!chan->sc_exit) {
- return -EINVAL;
+ WARN_ON_ONCE(!chan->sc_exit);
+ if (IS_ERR(chan->sc_exit)) {
+ return PTR_ERR(chan->sc_exit);
}
}
if (ret)
return ret;
#endif
- ret = tracepoint_probe_register("sys_enter",
+ ret = lttng_wrapper_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 = lttng_wrapper_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(lttng_wrapper_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 = lttng_wrapper_tracepoint_probe_unregister("sys_exit",
(void *) __event_probe__exit_syscall,
chan->sc_exit);
if (ret)
return ret;
- ret = tracepoint_probe_unregister("sys_enter",
+ ret = lttng_wrapper_tracepoint_probe_unregister("sys_enter",
(void *) syscall_entry_probe, chan);
if (ret)
return ret;