diff options
Diffstat (limited to 'tools/include/linux/kernel.h')
-rw-r--r-- | tools/include/linux/kernel.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/tools/include/linux/kernel.h b/tools/include/linux/kernel.h new file mode 100644 index 000000000..4b0673bf5 --- /dev/null +++ b/tools/include/linux/kernel.h @@ -0,0 +1,108 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __TOOLS_LINUX_KERNEL_H +#define __TOOLS_LINUX_KERNEL_H + +#include <stdarg.h> +#include <stddef.h> +#include <assert.h> +#include <linux/build_bug.h> +#include <linux/compiler.h> +#include <linux/math.h> +#include <endian.h> +#include <byteswap.h> + +#ifndef UINT_MAX +#define UINT_MAX (~0U) +#endif + +#define _RET_IP_ ((unsigned long)__builtin_return_address(0)) + +#define PERF_ALIGN(x, a) __PERF_ALIGN_MASK(x, (typeof(x))(a)-1) +#define __PERF_ALIGN_MASK(x, mask) (((x)+(mask))&~(mask)) + +#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 + +#ifndef max +#define max(x, y) ({ \ + typeof(x) _max1 = (x); \ + typeof(y) _max2 = (y); \ + (void) (&_max1 == &_max2); \ + _max1 > _max2 ? _max1 : _max2; }) +#endif + +#ifndef min +#define min(x, y) ({ \ + typeof(x) _min1 = (x); \ + typeof(y) _min2 = (y); \ + (void) (&_min1 == &_min2); \ + _min1 < _min2 ? _min1 : _min2; }) +#endif + +#define max_t(type, x, y) max((type)x, (type)y) +#define min_t(type, x, y) min((type)x, (type)y) +#define clamp(val, lo, hi) min((typeof(val))max(val, lo), hi) + +#ifndef BUG_ON +#ifdef NDEBUG +#define BUG_ON(cond) do { if (cond) {} } while (0) +#else +#define BUG_ON(cond) assert(!(cond)) +#endif +#endif +#define BUG() BUG_ON(1) + +#if __BYTE_ORDER == __BIG_ENDIAN +#define cpu_to_le16 bswap_16 +#define cpu_to_le32 bswap_32 +#define cpu_to_le64 bswap_64 +#define le16_to_cpu bswap_16 +#define le32_to_cpu bswap_32 +#define le64_to_cpu bswap_64 +#define cpu_to_be16 +#define cpu_to_be32 +#define cpu_to_be64 +#define be16_to_cpu +#define be32_to_cpu +#define be64_to_cpu +#else +#define cpu_to_le16 +#define cpu_to_le32 +#define cpu_to_le64 +#define le16_to_cpu +#define le32_to_cpu +#define le64_to_cpu +#define cpu_to_be16 bswap_16 +#define cpu_to_be32 bswap_32 +#define cpu_to_be64 bswap_64 +#define be16_to_cpu bswap_16 +#define be32_to_cpu bswap_32 +#define be64_to_cpu bswap_64 +#endif + +int vscnprintf(char *buf, size_t size, const char *fmt, va_list args); +int scnprintf(char * buf, size_t size, const char * fmt, ...); +int scnprintf_pad(char * buf, size_t size, const char * fmt, ...); + +#ifndef ARRAY_SIZE +#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) +#endif + +#define current_gfp_context(k) 0 +#define synchronize_rcu() + +#endif |