Root/kernel/bounds.c

1/*
2 * Generate definitions needed by the preprocessor.
3 * This code generates raw asm output which is post-processed
4 * to extract and format the required data.
5 */
6
7#define __GENERATING_BOUNDS_H
8/* Include headers that define the enum constants of interest */
9#include <linux/page-flags.h>
10#include <linux/mmzone.h>
11#include <linux/kbuild.h>
12#include <linux/page_cgroup.h>
13#include <linux/log2.h>
14#include <linux/spinlock_types.h>
15
16void foo(void)
17{
18    /* The enum constants to put into include/generated/bounds.h */
19    DEFINE(NR_PAGEFLAGS, __NR_PAGEFLAGS);
20    DEFINE(MAX_NR_ZONES, __MAX_NR_ZONES);
21    DEFINE(NR_PCG_FLAGS, __NR_PCG_FLAGS);
22#ifdef CONFIG_SMP
23    DEFINE(NR_CPUS_BITS, ilog2(CONFIG_NR_CPUS));
24#endif
25    DEFINE(SPINLOCK_SIZE, sizeof(spinlock_t));
26    /* End of constants */
27}
28

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