Fix: event notifier: racy use of last subbuffer record

[lttng-modules.git] / src / lttng-bytecode-interpreter.c

diff --git a/src/lttng-bytecode-interpreter.c b/src/lttng-bytecode-interpreter.c
index b46a23b74c1e4cccc4151a772d3ae340b5604d86..4b100ab861761abb68993a93ad09f0a50004588d 100644 (file)
--- a/src/lttng-bytecode-interpreter.c
+++ b/src/lttng-bytecode-interpreter.c
@@ -7,6 +7,7 @@
  * Copyright (C) 2010-2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  */
 
+#include <wrapper/compiler_attributes.h>
 #include <wrapper/uaccess.h>
 #include <wrapper/objtool.h>
 #include <wrapper/types.h>
@@ -293,6 +294,7 @@ static int context_get_index(struct lttng_kernel_probe_ctx *lttng_probe_ctx,
                        ptr->u.u64 = v.u.s64;   /* Cast. */
                        ptr->ptr = &ptr->u.u64;
                }
+               ptr->rev_bo = lttng_kernel_get_type_integer(field->type)->reverse_byte_order;
                break;
        case lttng_kernel_type_enum:
        {
@@ -309,6 +311,7 @@ static int context_get_index(struct lttng_kernel_probe_ctx *lttng_probe_ctx,
                        ptr->u.u64 = v.u.s64;   /* Cast. */
                        ptr->ptr = &ptr->u.u64;
                }
+               ptr->rev_bo = integer_type->reverse_byte_order;
                break;
        }
        case lttng_kernel_type_array:
@@ -421,7 +424,8 @@ static int dynamic_get_index(struct lttng_kernel_probe_ctx *lttng_probe_ctx,
                }
                break;
        case LOAD_ROOT_CONTEXT:
-       case LOAD_ROOT_APP_CONTEXT:     /* Fall-through */
+               lttng_fallthrough;
+       case LOAD_ROOT_APP_CONTEXT:
        {
                ret = context_get_index(lttng_probe_ctx,
                                &stack_top->u.ptr,