Commit | Line | Data |
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35897f8b | 1 | /* |
c0c0989a | 2 | * SPDX-License-Identifier: LGPL-2.1-only |
35897f8b | 3 | * |
c0c0989a | 4 | * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
35897f8b MD |
5 | */ |
6 | ||
c0c0989a MJ |
7 | #ifndef _LTTNG_UST_HELPER_H |
8 | #define _LTTNG_UST_HELPER_H | |
9 | ||
35897f8b MD |
10 | #include <stdlib.h> |
11 | ||
2eba8e39 MJ |
12 | #include <lttng/ust-arch.h> |
13 | ||
415dfaf7 | 14 | static inline __attribute__((always_inline)) |
35897f8b MD |
15 | void *zmalloc(size_t len) |
16 | { | |
17 | return calloc(len, 1); | |
18 | } | |
19 | ||
20 | #define max_t(type, x, y) \ | |
21 | ({ \ | |
22 | type __max1 = (x); \ | |
23 | type __max2 = (y); \ | |
24 | __max1 > __max2 ? __max1: __max2; \ | |
25 | }) | |
26 | ||
27 | #define min_t(type, x, y) \ | |
28 | ({ \ | |
29 | type __min1 = (x); \ | |
30 | type __min2 = (y); \ | |
31 | __min1 <= __min2 ? __min1: __min2; \ | |
32 | }) | |
33 | ||
fd67a004 MD |
34 | #define LTTNG_ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0])) |
35 | ||
171fcc6f MD |
36 | /* |
37 | * Use of __builtin_return_address(0) sometimes seems to cause stack | |
38 | * corruption on 32-bit PowerPC. Disable this feature on that | |
39 | * architecture for now by always using the NULL value for the ip | |
40 | * context. | |
41 | */ | |
2eba8e39 | 42 | #if defined(LTTNG_UST_ARCH_PPC) && !defined(LTTNG_UST_ARCH_PPC64) |
171fcc6f | 43 | #define LTTNG_UST_CALLER_IP() NULL |
2eba8e39 | 44 | #else |
171fcc6f | 45 | #define LTTNG_UST_CALLER_IP() __builtin_return_address(0) |
2eba8e39 | 46 | #endif |
171fcc6f | 47 | |
35897f8b | 48 | #endif /* _LTTNG_UST_HELPER_H */ |