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-rw-r--r--ldso/include/dl-syscall.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/ldso/include/dl-syscall.h b/ldso/include/dl-syscall.h
index 8f8c64a30..0c0687131 100644
--- a/ldso/include/dl-syscall.h
+++ b/ldso/include/dl-syscall.h
@@ -150,8 +150,15 @@ static inline _syscall6(void *, _dl_mmap, void *, start, size_t, length,
# define __NR___syscall_mmap2 __NR_mmap2
static inline _syscall6(__ptr_t, __syscall_mmap2, __ptr_t, addr, size_t, len,
int, prot, int, flags, int, fd, off_t, offset);
-/* always 12, even on architectures where PAGE_SHIFT != 12 */
+
+/* Some architectures always use 12 as page shift for mmap2() eventhough the
+ * real PAGE_SHIFT != 12. Other architectures use the same value as
+ * PAGE_SHIFT...
+ */
+#ifndef MMAP2_PAGE_SHIFT
# define MMAP2_PAGE_SHIFT 12
+#endif
+
static inline void * _dl_mmap(void * addr, unsigned long size, int prot,
int flags, int fd, unsigned long offset)
{