Fix: return value signedness

[lttng-tools.git] / src / bin / lttng-sessiond / lttng-ust-abi.h

diff --git a/src/bin/lttng-sessiond/lttng-ust-abi.h b/src/bin/lttng-sessiond/lttng-ust-abi.h
index bd83c00ff776de7046a5ec7297f5df9f57c8c7e9..1bf82ed4431ee8cc1267f8e6606012f05f7bad43 100644 (file)
--- a/src/bin/lttng-sessiond/lttng-ust-abi.h
+++ b/src/bin/lttng-sessiond/lttng-ust-abi.h
@@ -8,15 +8,26 @@
  *
  * LTTng-UST ABI header
  *
- * Dual LGPL v2.1/GPL v2 license.
+ * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
+ * OR IMPLIED.  ANY USE IS AT YOUR OWN RISK.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
  */
 
 #include <stdint.h>
 
 #define LTTNG_UST_SYM_NAME_LEN 256
 
-#define LTTNG_UST_COMM_VERSION_MAJOR           0
-#define LTTNG_UST_COMM_VERSION_MINOR           1
+#define LTTNG_UST_COMM_VERSION_MAJOR           2
+#define LTTNG_UST_COMM_VERSION_MINOR           0
 
 enum lttng_ust_instrumentation {
        LTTNG_UST_TRACEPOINT            = 0,
@@ -35,11 +46,12 @@ enum lttng_ust_output {
 };
 
 struct lttng_ust_tracer_version {
-       uint32_t version;
+       uint32_t major;
+       uint32_t minor;
        uint32_t patchlevel;
-       uint32_t sublevel;
 };
 
+#define LTTNG_UST_CHANNEL_PADDING      LTTNG_UST_SYM_NAME_LEN + 32
 struct lttng_ust_channel {
        int overwrite;                          /* 1: overwrite, 0: discard */
        uint64_t subbuf_size;                   /* in bytes */
@@ -47,17 +59,32 @@ struct lttng_ust_channel {
        unsigned int switch_timer_interval;     /* usecs */
        unsigned int read_timer_interval;       /* usecs */
        enum lttng_ust_output output;           /* output mode */
+       char padding[LTTNG_UST_CHANNEL_PADDING];
 };
 
+#define LTTNG_UST_STREAM_PADDING1      16
+#define LTTNG_UST_STREAM_PADDING2      LTTNG_UST_SYM_NAME_LEN + 32
+struct lttng_ust_stream {
+       char padding[LTTNG_UST_STREAM_PADDING1];
+
+       union {
+               char padding[LTTNG_UST_STREAM_PADDING2];
+       } u;
+};
+
+#define LTTNG_UST_EVENT_PADDING1       16
+#define LTTNG_UST_EVENT_PADDING2       LTTNG_UST_SYM_NAME_LEN + 32
 struct lttng_ust_event {
        enum lttng_ust_instrumentation instrumentation;
        char name[LTTNG_UST_SYM_NAME_LEN];      /* event name */
 
        enum lttng_ust_loglevel_type loglevel_type;
        int loglevel;   /* value, -1: all */
+       char padding[LTTNG_UST_EVENT_PADDING1];
 
        /* Per instrumentation type configuration */
        union {
+               char padding[LTTNG_UST_EVENT_PADDING2];
        } u;
 };
 
@@ -68,15 +95,21 @@ enum lttng_ust_context_type {
        LTTNG_UST_CONTEXT_PROCNAME              = 3,
 };
 
+#define LTTNG_UST_CONTEXT_PADDING1     16
+#define LTTNG_UST_CONTEXT_PADDING2     LTTNG_UST_SYM_NAME_LEN + 32
 struct lttng_ust_context {
        enum lttng_ust_context_type ctx;
+       char padding[LTTNG_UST_CONTEXT_PADDING1];
+
        union {
+               char padding[LTTNG_UST_CONTEXT_PADDING2];
        } u;
 };
 
 /*
  * Tracer channel attributes.
  */
+#define LTTNG_UST_CHANNEL_ATTR_PADDING LTTNG_UST_SYM_NAME_LEN + 32
 struct lttng_ust_channel_attr {
        int overwrite;                          /* 1: overwrite, 0: discard */
        uint64_t subbuf_size;                   /* bytes */
@@ -84,26 +117,38 @@ struct lttng_ust_channel_attr {
        unsigned int switch_timer_interval;     /* usec */
        unsigned int read_timer_interval;       /* usec */
        enum lttng_ust_output output;           /* splice, mmap */
+       char padding[LTTNG_UST_CHANNEL_ATTR_PADDING];
 };
 
+#define LTTNG_UST_TRACEPOINT_ITER_PADDING      16
 struct lttng_ust_tracepoint_iter {
        char name[LTTNG_UST_SYM_NAME_LEN];      /* provider:name */
        int loglevel;
+       char padding[LTTNG_UST_TRACEPOINT_ITER_PADDING];
 };
 
+#define LTTNG_UST_OBJECT_DATA_PADDING          LTTNG_UST_SYM_NAME_LEN + 32
 struct lttng_ust_object_data {
        int handle;
        int shm_fd;
        int wait_fd;
        uint64_t memory_map_size;
+       char padding[LTTNG_UST_OBJECT_DATA_PADDING];
 };
 
 enum lttng_ust_calibrate_type {
        LTTNG_UST_CALIBRATE_TRACEPOINT,
 };
 
+#define LTTNG_UST_CALIBRATE_PADDING1   16
+#define LTTNG_UST_CALIBRATE_PADDING2   LTTNG_UST_SYM_NAME_LEN + 32
 struct lttng_ust_calibrate {
-   enum lttng_ust_calibrate_type type;     /* type (input) */
+       enum lttng_ust_calibrate_type type;     /* type (input) */
+       char padding[LTTNG_UST_CALIBRATE_PADDING1];
+
+       union {
+               char padding[LTTNG_UST_CALIBRATE_PADDING2];
+       } u;
 };
 
 #define _UST_CMD(minor)                                (minor)