Update README.md for supported kernel

[lttng-modules.git] / instrumentation / events / lttng-module / signal.h

diff --git a/instrumentation/events/lttng-module/signal.h b/instrumentation/events/lttng-module/signal.h
index 68045ce6fb3a2b8e1d96079caf7daabf542ae2aa..810dcbeadf20db00861c6110ea3ca87019311987 100644 (file)
--- a/instrumentation/events/lttng-module/signal.h
+++ b/instrumentation/events/lttng-module/signal.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: GPL-2.0-only */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM signal
 
@@ -6,7 +6,6 @@
 #define LTTNG_TRACE_SIGNAL_H
 
 #include <probes/lttng-tracepoint-event.h>
-#include <linux/version.h>
 
 #ifndef _TRACE_SIGNAL_DEF
 #define _TRACE_SIGNAL_DEF
@@ -15,11 +14,11 @@
 #undef LTTNG_FIELDS_SIGINFO
 #define LTTNG_FIELDS_SIGINFO(info)                             \
                ctf_integer(int, errno,                         \
-                       (info == SEND_SIG_NOINFO || info == SEND_SIG_FORCED || info == SEND_SIG_PRIV) ? \
+                       (info == SEND_SIG_NOINFO || info == SEND_SIG_PRIV) ? \
                        0 :                                     \
                        info->si_errno)                         \
                ctf_integer(int, code,                          \
-                       (info == SEND_SIG_NOINFO || info == SEND_SIG_FORCED) ? \
+                       (info == SEND_SIG_NOINFO) ?             \
                        SI_USER :                               \
                        ((info == SEND_SIG_PRIV) ? SI_KERNEL : info->si_code))
 #endif /* _TRACE_SIGNAL_DEF */
@@ -36,24 +35,9 @@
  * SEND_SIG_NOINFO means that si_code is SI_USER, and SEND_SIG_PRIV
  * means that si_code is SI_KERNEL.
  */
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,4,0))
 LTTNG_TRACEPOINT_EVENT(signal_generate,
 
-       TP_PROTO(int sig, struct siginfo *info, struct task_struct *task),
-
-       TP_ARGS(sig, info, task),
-
-       TP_FIELDS(
-               ctf_integer(int, sig, sig)
-               LTTNG_FIELDS_SIGINFO(info)
-               ctf_array_text(char, comm, task->comm, TASK_COMM_LEN)
-               ctf_integer(pid_t, pid, task->pid)
-       )
-)
-#else
-LTTNG_TRACEPOINT_EVENT(signal_generate,
-
-       TP_PROTO(int sig, struct siginfo *info, struct task_struct *task,
+       TP_PROTO(int sig, struct kernel_siginfo *info, struct task_struct *task,
                        int group, int result),
 
        TP_ARGS(sig, info, task, group, result),
@@ -67,7 +51,6 @@ LTTNG_TRACEPOINT_EVENT(signal_generate,
                ctf_integer(int, result, result)
        )
 )
-#endif
 
 /**
  * signal_deliver - called when a signal is delivered
@@ -85,7 +68,7 @@ LTTNG_TRACEPOINT_EVENT(signal_generate,
  */
 LTTNG_TRACEPOINT_EVENT(signal_deliver,
 
-       TP_PROTO(int sig, struct siginfo *info, struct k_sigaction *ka),
+       TP_PROTO(int sig, struct kernel_siginfo *info, struct k_sigaction *ka),
 
        TP_ARGS(sig, info, ka),
 
@@ -97,57 +80,6 @@ LTTNG_TRACEPOINT_EVENT(signal_deliver,
        )
 )
 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,4,0))
-LTTNG_TRACEPOINT_EVENT_CLASS(signal_queue_overflow,
-
-       TP_PROTO(int sig, int group, struct siginfo *info),
-
-       TP_ARGS(sig, group, info),
-
-       TP_FIELDS(
-               ctf_integer(int, sig, sig)
-               ctf_integer(int, group, group)
-               LTTNG_FIELDS_SIGINFO(info)
-       )
-)
-
-/**
- * signal_overflow_fail - called when signal queue is overflow
- * @sig: signal number
- * @group: signal to process group or not (bool)
- * @info: pointer to struct siginfo
- *
- * Kernel fails to generate 'sig' signal with 'info' siginfo, because
- * siginfo queue is overflow, and the signal is dropped.
- * 'group' is not 0 if the signal will be sent to a process group.
- * 'sig' is always one of RT signals.
- */
-LTTNG_TRACEPOINT_EVENT_INSTANCE(signal_queue_overflow, signal_overflow_fail,
-
-       TP_PROTO(int sig, int group, struct siginfo *info),
-
-       TP_ARGS(sig, group, info)
-)
-
-/**
- * signal_lose_info - called when siginfo is lost
- * @sig: signal number
- * @group: signal to process group or not (bool)
- * @info: pointer to struct siginfo
- *
- * Kernel generates 'sig' signal but loses 'info' siginfo, because siginfo
- * queue is overflow.
- * 'group' is not 0 if the signal will be sent to a process group.
- * 'sig' is always one of non-RT signals.
- */
-LTTNG_TRACEPOINT_EVENT_INSTANCE(signal_queue_overflow, signal_lose_info,
-
-       TP_PROTO(int sig, int group, struct siginfo *info),
-
-       TP_ARGS(sig, group, info)
-)
-#endif
-
 #endif /* LTTNG_TRACE_SIGNAL_H */
 
 /* This part must be outside protection */