Use the machine-independent method of querying the page size.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14233 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Support/SystemUtils.cpp b/lib/Support/SystemUtils.cpp
index 076e3a7b9330f112439bbef27d0286735dda117f..f016db2b99d9cd34683df35175bb154f99edeb04 100644 (file)
--- a/lib/Support/SystemUtils.cpp
+++ b/lib/Support/SystemUtils.cpp
@@ -17,6 +17,7 @@
 #include "Config/sys/types.h"
 #include "Config/sys/stat.h"
 #include "Config/fcntl.h"
+#include "Config/pagesize.h"
 #include "Config/sys/wait.h"
 #include "Config/sys/mman.h"
 #include "Config/unistd.h"
@@ -283,7 +284,7 @@ void *llvm::AllocateRWXMemory(unsigned NumBytes) {
   return P;
 
 #elif defined(HAVE_MMAP)
-  static const long pageSize = sysconf(_SC_PAGESIZE);
+  static const long pageSize = GetPageSize();
   unsigned NumPages = (NumBytes+pageSize-1)/pageSize;
 
 /* FIXME: This should use the proper autoconf flags */