no data exec support
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1074 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/exec.c b/exec.c
index 9c86765..c33661b 100644
--- a/exec.c
+++ b/exec.c
@@ -18,6 +18,11 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
+#ifdef _WIN32
+#include <windows.h>
+#else
+#include <sys/mman.h>
+#endif
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
@@ -25,9 +30,6 @@
#include <errno.h>
#include <unistd.h>
#include <inttypes.h>
-#if !defined(CONFIG_SOFTMMU)
-#include <sys/mman.h>
-#endif
#include "cpu.h"
#include "exec-all.h"
@@ -130,10 +132,33 @@
/* NOTE: we can always suppose that qemu_host_page_size >=
TARGET_PAGE_SIZE */
#ifdef _WIN32
- qemu_real_host_page_size = 4096;
+ {
+ SYSTEM_INFO system_info;
+ DWORD old_protect;
+
+ GetSystemInfo(&system_info);
+ qemu_real_host_page_size = system_info.dwPageSize;
+
+ VirtualProtect(code_gen_buffer, sizeof(code_gen_buffer),
+ PAGE_EXECUTE_READWRITE, &old_protect);
+ }
#else
qemu_real_host_page_size = getpagesize();
+ {
+ unsigned long start, end;
+
+ start = (unsigned long)code_gen_buffer;
+ start &= ~(qemu_real_host_page_size - 1);
+
+ end = (unsigned long)code_gen_buffer + sizeof(code_gen_buffer);
+ end += qemu_real_host_page_size - 1;
+ end &= ~(qemu_real_host_page_size - 1);
+
+ mprotect((void *)start, end - start,
+ PROT_READ | PROT_WRITE | PROT_EXEC);
+ }
#endif
+
if (qemu_host_page_size == 0)
qemu_host_page_size = qemu_real_host_page_size;
if (qemu_host_page_size < TARGET_PAGE_SIZE)