1 #ifndef _LTTNG_UST_COMPILER_H
2 #define _LTTNG_UST_COMPILER_H
5 * Copyright 2011-2012 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
6 * Paul Woegerer <paul_woegerer@mentor.com>
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
27 #define lttng_ust_notrace __attribute__((no_instrument_function))
28 #define LTTNG_PACKED __attribute__((__packed__))
31 * Clang supports the no_sanitize variable attribute on global variables.
32 * GCC only supports the no_sanitize_address function attribute, which is
35 #if defined(__clang__)
36 # if __has_feature(address_sanitizer)
37 # define __lttng_ust_variable_attribute_no_sanitize_address \
38 __attribute__((no_sanitize("address")))
40 # define __lttng_ust_variable_attribute_no_sanitize_address
43 # define __lttng_ust_variable_attribute_no_sanitize_address
47 * Compound literals with static storage are needed by LTTng.
48 * Compound literals are part of the C99 and C11 standards, but not
49 * part of the C++ standards. However, those are supported by both g++ and
50 * clang. In order to be strictly C++11 compliant, defining
51 * LTTNG_ALLOCATE_COMPOUND_LITERAL_ON_HEAP before including this header
52 * allocates those on the heap in C++.
55 * static struct mystruct *var = __LTTNG_COMPOUND_LITERAL(struct mystruct, { 1, 2, 3 });
57 #if defined (__cplusplus) && defined (LTTNG_ALLOCATE_COMPOUND_LITERAL_ON_HEAP)
58 #define __LTTNG_COMPOUND_LITERAL(type, ...) new (type) __VA_ARGS__
60 #define __LTTNG_COMPOUND_LITERAL(type, ...) (type[]) { __VA_ARGS__ }
63 #endif /* _LTTNG_UST_COMPILER_H */
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