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#ifndef __TOOLS_LINUX_VMALLOC_H
#define __TOOLS_LINUX_VMALLOC_H
#include <stdlib.h>
#include <sys/mman.h>
#include "linux/slab.h"
#include "tools-util.h"
#define PAGE_KERNEL 0
#define PAGE_KERNEL_EXEC 1
#define vfree(p) free(p)
static inline void *__vmalloc(unsigned long size, gfp_t gfp_mask)
{
void *p;
size = round_up(size, PAGE_SIZE);
run_shrinkers();
p = aligned_alloc(PAGE_SIZE, size);
if (!p)
return NULL;
if (gfp_mask & __GFP_ZERO)
memset(p, 0, size);
return p;
}
static inline void *vmalloc_exec(unsigned long size, gfp_t gfp_mask)
{
void *p;
p = __vmalloc(size, gfp_mask);
if (!p)
return NULL;
if (mprotect(p, size, PROT_READ|PROT_WRITE|PROT_EXEC)) {
vfree(p);
return NULL;
}
return p;
}
static inline void *vmalloc(unsigned long size)
{
return __vmalloc(size, GFP_KERNEL);
}
static inline void *vzalloc(unsigned long size)
{
return __vmalloc(size, GFP_KERNEL|__GFP_ZERO);
}
#endif /* __TOOLS_LINUX_VMALLOC_H */
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