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 @@ +#ifndef PERF_LINUX_KERNEL_H_ +#define PERF_LINUX_KERNEL_H_ + +#ifndef offsetof +#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) +#endif + +#ifndef container_of +/** + * container_of - cast a member of a structure out to the containing structure + * @ptr: the pointer to the member. + * @type: the type of the container struct this is embedded in. + * @member: the name of the member within the struct. + * + */ +#define container_of(ptr, type, member) ({ \ + const typeof(((type *)0)->member) * __mptr = (ptr); \ + (type *)((char *)__mptr - offsetof(type, member)); }) +#endif + +#endif |