Implement PID tracking for kernel tracing

[lttng-tools.git] / src / common / kernel-ctl / kernel-ctl.h

diff --git a/src/common/kernel-ctl/kernel-ctl.h b/src/common/kernel-ctl/kernel-ctl.h
index b67e8e356e44e247f7b19036c4430f71917729b8..e854eba0e3b31060473ab579a99355a6dc909da0 100644 (file)
--- a/src/common/kernel-ctl/kernel-ctl.h
+++ b/src/common/kernel-ctl/kernel-ctl.h
@@ -36,13 +36,33 @@ int kernctl_start_session(int fd);
 int kernctl_stop_session(int fd);
 
 int kernctl_tracepoint_list(int fd);
+int kernctl_syscall_list(int fd);
 int kernctl_tracer_version(int fd, struct lttng_kernel_tracer_version *v);
+int kernctl_tracer_abi_version(int fd, struct lttng_kernel_tracer_abi_version *v);
 int kernctl_wait_quiescent(int fd);
 int kernctl_calibrate(int fd, struct lttng_kernel_calibrate *calibrate);
 
 int kernctl_enable_syscall(int fd, const char *syscall_name);
 int kernctl_disable_syscall(int fd, const char *syscall_name);
 
+/*
+ * kernctl_syscall_mask - Get syscall mask associated to a channel FD.
+ *
+ * The parameter @syscall_mask should initially be either NULL or point
+ * to memory allocated with malloc(3) or realloc(3). When the function
+ * returns, it will point to a memory area of the size required for the
+ * bitmask (using realloc(3) to resize the memory).
+ *
+ * It returns 0 if OK, -1 on error. In all cases (error and OK),
+ * @syscall_mask should be freed by the caller with free(3).
+ */
+int kernctl_syscall_mask(int fd, char **syscall_mask,
+               uint32_t *nr_bits);
+
+/* Process ID tracking can be applied to session FD */
+int kernctl_track_pid(int fd, int pid);
+int kernctl_untrack_pid(int fd, int pid);
+
 /* Buffer operations */
 
 /* For mmap mode, readable without "get" operation */