#include <sys/mman.h>
#include <unistd.h>
#include <asm/page.h> /* For PAGE_SHIFT */
+#include <bitsize.h>
-#if defined(__sparc__)
+/*
+ * MMAP2_SHIFT is definitely *NOT* equal to getpageshift() for
+ * many 32-bit architectures. Supposedly this is fixed to 12
+ * for all 32-bit architectures. CHECK THIS!!!
+ */
# define MMAP2_SHIFT 12 /* Fixed by syscall definition */
-#elif defined(__mips__) || defined(__powerpc__)
-# define MMAP2_SHIFT __getpageshift() /* Variable */
-#else
-# define MMAP2_SHIFT PAGE_SHIFT
-#endif
/*
* Set in SYSCALLS whether or not we should use an unadorned mmap() system
* call (typical on 64-bit architectures).
*/
-#if (BITSIZE == 32 && defined(__NR_mmap2)) || (BITSIZE == 64 && !defined(__NR_mmap))
+#if (_BITSIZE == 32 && defined(__NR_mmap2)) || (_BITSIZE == 64 && !defined(__NR_mmap))
/* This architecture uses mmap2(). The Linux mmap2() system call takes
a page offset as the offset argument. We need to make sure we have