diff options
Diffstat (limited to 'tools/perf/util/include/linux/kernel.h')
| -rw-r--r-- | tools/perf/util/include/linux/kernel.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/tools/perf/util/include/linux/kernel.h b/tools/perf/util/include/linux/kernel.h new file mode 100644 index 000000000000..99c1b3d1edd9 --- /dev/null +++ b/tools/perf/util/include/linux/kernel.h | |||
| @@ -0,0 +1,21 @@ | |||
| 1 | #ifndef PERF_LINUX_KERNEL_H_ | ||
| 2 | #define PERF_LINUX_KERNEL_H_ | ||
| 3 | |||
| 4 | #ifndef offsetof | ||
| 5 | #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) | ||
| 6 | #endif | ||
| 7 | |||
| 8 | #ifndef container_of | ||
| 9 | /** | ||
| 10 | * container_of - cast a member of a structure out to the containing structure | ||
| 11 | * @ptr: the pointer to the member. | ||
| 12 | * @type: the type of the container struct this is embedded in. | ||
| 13 | * @member: the name of the member within the struct. | ||
| 14 | * | ||
| 15 | */ | ||
| 16 | #define container_of(ptr, type, member) ({ \ | ||
| 17 | const typeof(((type *)0)->member) * __mptr = (ptr); \ | ||
| 18 | (type *)((char *)__mptr - offsetof(type, member)); }) | ||
| 19 | #endif | ||
| 20 | |||
| 21 | #endif | ||
