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authorWang Nan <wangnan0@huawei.com>2015-06-01 03:37:47 -0400
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-06-02 14:27:04 -0400
commit37fbe0a4a0a9afe3b0fe843a4775a85ccf430deb (patch)
treef6b07c9ec73bd088b19337469c721d60c4a24cba /tools/include/linux/kernel.h
parent0443f36b0de026143a78c858aac773572f7dd5db (diff)
perf tools: Move linux/kernel.h to tools/include
This patch moves kernel.h from tools/perf/util/include/linux/kernel.h to tools/include/linux/kernel.h to enable other libraries use macros in it, like libbpf which will be introduced by further patches. MANIFEST is also updated for 'make perf-*-src-pkg'. Signed-off-by: Wang Nan <wangnan0@huawei.com> Acked-by: Alexei Starovoitov <ast@plumgrid.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: David Ahern <dsahern@gmail.com> Cc: He Kuang <hekuang@huawei.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kaixu Xia <xiakaixu@huawei.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1433144296-74992-2-git-send-email-wangnan0@huawei.com [ Fixed up the ifdef guard to match other entries in tools/include/linux ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/include/linux/kernel.h')
-rw-r--r--tools/include/linux/kernel.h107
1 files changed, 107 insertions, 0 deletions
diff --git a/tools/include/linux/kernel.h b/tools/include/linux/kernel.h
new file mode 100644
index 000000000000..76df53539c2a
--- /dev/null
+++ b/tools/include/linux/kernel.h
@@ -0,0 +1,107 @@
1#ifndef __TOOLS_LINUX_KERNEL_H
2#define __TOOLS_LINUX_KERNEL_H
3
4#include <stdarg.h>
5#include <stdio.h>
6#include <stdlib.h>
7#include <assert.h>
8
9#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
10
11#define PERF_ALIGN(x, a) __PERF_ALIGN_MASK(x, (typeof(x))(a)-1)
12#define __PERF_ALIGN_MASK(x, mask) (((x)+(mask))&~(mask))
13
14#ifndef offsetof
15#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
16#endif
17
18#ifndef container_of
19/**
20 * container_of - cast a member of a structure out to the containing structure
21 * @ptr: the pointer to the member.
22 * @type: the type of the container struct this is embedded in.
23 * @member: the name of the member within the struct.
24 *
25 */
26#define container_of(ptr, type, member) ({ \
27 const typeof(((type *)0)->member) * __mptr = (ptr); \
28 (type *)((char *)__mptr - offsetof(type, member)); })
29#endif
30
31#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
32
33#ifndef max
34#define max(x, y) ({ \
35 typeof(x) _max1 = (x); \
36 typeof(y) _max2 = (y); \
37 (void) (&_max1 == &_max2); \
38 _max1 > _max2 ? _max1 : _max2; })
39#endif
40
41#ifndef min
42#define min(x, y) ({ \
43 typeof(x) _min1 = (x); \
44 typeof(y) _min2 = (y); \
45 (void) (&_min1 == &_min2); \
46 _min1 < _min2 ? _min1 : _min2; })
47#endif
48
49#ifndef roundup
50#define roundup(x, y) ( \
51{ \
52 const typeof(y) __y = y; \
53 (((x) + (__y - 1)) / __y) * __y; \
54} \
55)
56#endif
57
58#ifndef BUG_ON
59#ifdef NDEBUG
60#define BUG_ON(cond) do { if (cond) {} } while (0)
61#else
62#define BUG_ON(cond) assert(!(cond))
63#endif
64#endif
65
66/*
67 * Both need more care to handle endianness
68 * (Don't use bitmap_copy_le() for now)
69 */
70#define cpu_to_le64(x) (x)
71#define cpu_to_le32(x) (x)
72
73static inline int
74vscnprintf(char *buf, size_t size, const char *fmt, va_list args)
75{
76 int i;
77 ssize_t ssize = size;
78
79 i = vsnprintf(buf, size, fmt, args);
80
81 return (i >= ssize) ? (ssize - 1) : i;
82}
83
84static inline int scnprintf(char * buf, size_t size, const char * fmt, ...)
85{
86 va_list args;
87 ssize_t ssize = size;
88 int i;
89
90 va_start(args, fmt);
91 i = vsnprintf(buf, size, fmt, args);
92 va_end(args);
93
94 return (i >= ssize) ? (ssize - 1) : i;
95}
96
97/*
98 * This looks more complex than it should be. But we need to
99 * get the type for the ~ right in round_down (it needs to be
100 * as wide as the result!), and we want to evaluate the macro
101 * arguments just once each.
102 */
103#define __round_mask(x, y) ((__typeof__(x))((y)-1))
104#define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1)
105#define round_down(x, y) ((x) & ~__round_mask(x, y))
106
107#endif