compiler warning cleanup: is_signed_type: compare -1 to 1

[lttng-modules.git] / include / lttng / events.h

diff --git a/include/lttng/events.h b/include/lttng/events.h
index 7fa41ac18d1664b7d409cd287d7202cd6af53418..e4d62adb8ad9fc3de9bc4395fd426648d6884a8f 100644 (file)
--- a/include/lttng/events.h
+++ b/include/lttng/events.h
@@ -10,7 +10,7 @@
 #ifndef _LTTNG_EVENTS_H
 #define _LTTNG_EVENTS_H
 
-#include <linux/version.h>
+#include <lttng/kernel-version.h>
 #include <linux/list.h>
 #include <linux/kprobes.h>
 #include <linux/kref.h>
@@ -23,7 +23,7 @@
 #include <lttng/abi-old.h>
 #include <lttng/endian.h>
 
-#define lttng_is_signed_type(type)     (((type)(-1)) < 0)
+#define lttng_is_signed_type(type)     (((type) -1) < (type) 1)
 
 struct lttng_channel;
 struct lttng_session;
@@ -157,7 +157,7 @@ union lttng_ctx_value {
  * lttng_ctx_field because cpu hotplug needs fixed-location addresses.
  */
 struct lttng_perf_counter_field {
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0))
+#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,10,0))
        struct lttng_cpuhp_node cpuhp_prepare;
        struct lttng_cpuhp_node cpuhp_online;
 #else
@@ -353,6 +353,10 @@ struct lttng_event {
        int has_enablers_without_bytecode;
 };
 
+struct lttng_kernel_notifier_ctx {
+       int eval_capture;
+};
+
 // FIXME: Really similar to lttng_event above. Could those be merged ?
 struct lttng_event_notifier {
        enum lttng_event_type evtype;   /* First field. */
@@ -385,10 +389,12 @@ struct lttng_event_notifier {
        size_t num_captures;
        struct list_head capture_bytecode_runtime_head;
        int has_enablers_without_bytecode;
+       int eval_capture;               /* Should evaluate capture */
 
        void (*send_notification)(struct lttng_event_notifier *event_notifier,
                        struct lttng_probe_ctx *lttng_probe_ctx,
-                       const char *interpreter_stack_data);
+                       const char *interpreter_stack_data,
+                       struct lttng_kernel_notifier_ctx *notif_ctx);
        struct lttng_event_notifier_group *group; /* Weak ref */
 };
 
@@ -986,6 +992,8 @@ void lttng_enabler_link_bytecode(const struct lttng_event_desc *event_desc,
                struct lttng_ctx *ctx,
                struct list_head *instance_bytecode_runtime_head,
                struct list_head *enabler_bytecode_runtime_head);
+void lttng_free_event_filter_runtime(struct lttng_event *event);
+void lttng_free_event_notifier_filter_runtime(struct lttng_event_notifier *event_notifier);
 
 int lttng_probes_init(void);
 
@@ -1039,7 +1047,7 @@ int lttng_add_migratable_to_ctx(struct lttng_ctx **ctx)
 int lttng_add_callstack_to_ctx(struct lttng_ctx **ctx, int type);
 
 #if defined(CONFIG_CGROUPS) && \
-       ((LINUX_VERSION_CODE >= KERNEL_VERSION(4,6,0)) || \
+       ((LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0)) || \
         LTTNG_UBUNTU_KERNEL_RANGE(4,4,0,0, 4,5,0,0))
 int lttng_add_cgroup_ns_to_ctx(struct lttng_ctx **ctx);
 #else
@@ -1051,7 +1059,7 @@ int lttng_add_cgroup_ns_to_ctx(struct lttng_ctx **ctx)
 #endif
 
 #if defined(CONFIG_IPC_NS) && \
-       (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
+       (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
 int lttng_add_ipc_ns_to_ctx(struct lttng_ctx **ctx);
 #else
 static inline
@@ -1062,7 +1070,7 @@ int lttng_add_ipc_ns_to_ctx(struct lttng_ctx **ctx)
 #endif
 
 #if !defined(LTTNG_MNT_NS_MISSING_HEADER) && \
-       (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
+       (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
 int lttng_add_mnt_ns_to_ctx(struct lttng_ctx **ctx);
 #else
 static inline
@@ -1073,7 +1081,7 @@ int lttng_add_mnt_ns_to_ctx(struct lttng_ctx **ctx)
 #endif
 
 #if defined(CONFIG_NET_NS) && \
-       (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
+       (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
 int lttng_add_net_ns_to_ctx(struct lttng_ctx **ctx);
 #else
 static inline
@@ -1084,7 +1092,7 @@ int lttng_add_net_ns_to_ctx(struct lttng_ctx **ctx)
 #endif
 
 #if defined(CONFIG_PID_NS) && \
-       (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
+       (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
 int lttng_add_pid_ns_to_ctx(struct lttng_ctx **ctx);
 #else
 static inline
@@ -1095,7 +1103,7 @@ int lttng_add_pid_ns_to_ctx(struct lttng_ctx **ctx)
 #endif
 
 #if defined(CONFIG_USER_NS) && \
-       (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
+       (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
 int lttng_add_user_ns_to_ctx(struct lttng_ctx **ctx);
 #else
 static inline
@@ -1106,7 +1114,7 @@ int lttng_add_user_ns_to_ctx(struct lttng_ctx **ctx)
 #endif
 
 #if defined(CONFIG_UTS_NS) && \
-       (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
+       (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
 int lttng_add_uts_ns_to_ctx(struct lttng_ctx **ctx);
 #else
 static inline
@@ -1117,7 +1125,7 @@ int lttng_add_uts_ns_to_ctx(struct lttng_ctx **ctx)
 #endif
 
 #if defined(CONFIG_TIME_NS) && \
-       (LINUX_VERSION_CODE >= KERNEL_VERSION(5,6,0))
+       (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,6,0))
 int lttng_add_time_ns_to_ctx(struct lttng_ctx **ctx);
 #else
 static inline