1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Generate definitions needed by the preprocessor.
4  * This code generates raw asm output which is post-processed
5  * to extract and format the required data.
6  */
7 
8 #define __GENERATING_BOUNDS_H
9 /* Include headers that define the enum constants of interest */
10 #include <linux/page-flags.h>
11 #include <linux/mmzone.h>
12 #include <linux/kbuild.h>
13 #include <linux/log2.h>
14 #include <linux/spinlock_types.h>
15 
foo(void)16 void 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 #ifdef CONFIG_SMP
22 	DEFINE(NR_CPUS_BITS, ilog2(CONFIG_NR_CPUS));
23 #endif
24 	DEFINE(SPINLOCK_SIZE, sizeof(spinlock_t));
25 	/* End of constants */
26 }
27