1 files changed, 6 insertions, 1 deletions

diff --git a/src/lj_ccallback.c b/src/lj_ccallback.c
index 9de86258..8d6cb737 100644
--- a/src/lj_ccallback.c
+++ b/src/lj_ccallback.c
@@ -256,6 +256,11 @@ static void *callback_mcode_init(global_State *g, uint32_t *page)
 #ifndef MAP_ANONYMOUS
 #define MAP_ANONYMOUS   MAP_ANON
 #endif
+#ifdef PROT_MPROTECT
+#define CCPROT_CREATE   (PROT_MPROTECT(PROT_EXEC))
+#else
+#define CCPROT_CREATE   0
+#endif
 
 #endif
 
@@ -271,7 +276,7 @@ static void callback_mcode_new(CTState *cts)
   if (!p)
     lj_err_caller(cts->L, LJ_ERR_FFI_CBACKOV);
 #elif LJ_TARGET_POSIX
-  p = mmap(NULL, sz, (PROT_READ|PROT_WRITE), MAP_PRIVATE|MAP_ANONYMOUS,
+  p = mmap(NULL, sz, (PROT_READ|PROT_WRITE|CCPROT_CREATE), MAP_PRIVATE|MAP_ANONYMOUS,
            -1, 0);
   if (p == MAP_FAILED)
     lj_err_caller(cts->L, LJ_ERR_FFI_CBACKOV);