mailing list of musl libc

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
 #define _GNU_SOURCE 1
#include <sys/mman.h>
#include <errno.h>
#include "syscall.h"

int pkey_mprotect(void *addr, size_t len, int prot, int pkey)
{
	if (pkey == -1)
		return mprotect(addr, len, prot);
#ifdef SYS_pkey_mprotect
	return syscall(SYS_pkey_mprotect, addr, len, prot, pkey);
#else
	return __syscall_ret(-ENOSYS);
#endif
}