projects / lttng-ust.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | ||
| 9d315d6d MJ |
7 | #ifndef _UST_COMMON_MACROS_H |
| 8 | #define _UST_COMMON_MACROS_H | |
| c0c0989a | 9 | |
| 35897f8b MD |
10 | #include <stdlib.h> |
| 11 | ||
| 2eba8e39 MJ |
12 | #include <lttng/ust-arch.h> |
| 13 | ||
| 9d315d6d MJ |
14 | /* |
| 15 | * Memory allocation zeroed | |
| 16 | */ | |
| 5f6daaef MJ |
17 | static inline |
| 18 | void *zmalloc(size_t len) | |
| 19 | __attribute__((always_inline)); | |
| 20 | static inline | |
| 35897f8b MD |
21 | void *zmalloc(size_t len) |
| 22 | { | |
| 23 | return calloc(len, 1); | |
| 24 | } | |
| 25 | ||
| 26 | #define max_t(type, x, y) \ | |
| 27 | ({ \ | |
| 28 | type __max1 = (x); \ | |
| 29 | type __max2 = (y); \ | |
| 30 | __max1 > __max2 ? __max1: __max2; \ | |
| 31 | }) | |
| 32 | ||
| 33 | #define min_t(type, x, y) \ | |
| 34 | ({ \ | |
| 35 | type __min1 = (x); \ | |
| 36 | type __min2 = (y); \ | |
| 37 | __min1 <= __min2 ? __min1: __min2; \ | |
| 38 | }) | |
| 39 | ||
| fd67a004 MD |
40 | #define LTTNG_ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0])) |
| 41 | ||
| 171fcc6f MD |
42 | /* |
| 43 | * Use of __builtin_return_address(0) sometimes seems to cause stack | |
| 44 | * corruption on 32-bit PowerPC. Disable this feature on that | |
| 45 | * architecture for now by always using the NULL value for the ip | |
| 46 | * context. | |
| 47 | */ | |
| 2eba8e39 | 48 | #if defined(LTTNG_UST_ARCH_PPC) && !defined(LTTNG_UST_ARCH_PPC64) |
| 171fcc6f | 49 | #define LTTNG_UST_CALLER_IP() NULL |
| 2eba8e39 | 50 | #else |
| 171fcc6f | 51 | #define LTTNG_UST_CALLER_IP() __builtin_return_address(0) |
| 2eba8e39 | 52 | #endif |
| 171fcc6f | 53 | |
| 9d315d6d | 54 | #endif /* _UST_COMMON_MACROS_H */ |