Improve cross-compiling for stack limit check

Author: petk

cmake/cmake/modules/Zend/CheckStackLimit.cmake

@@ -17,31 +17,29 @@ message(CHECK_START "Checking whether the stack grows downwards")
 cmake_push_check_state(RESET)
   set(CMAKE_REQUIRED_QUIET TRUE)
 
-  if(NOT CMAKE_CROSSCOMPILING)
-    check_source_runs(C [[
-      #include <stdint.h>
+  check_source_runs(C [[
+    #include <stdint.h>
 
-      int (*volatile f)(uintptr_t);
+    int (*volatile f)(uintptr_t);
 
-      int stack_grows_downwards(uintptr_t arg) {
-        int local;
-        return (uintptr_t)&local < arg;
-      }
+    int stack_grows_downwards(uintptr_t arg)
+    {
+      int local;
+      return (uintptr_t)&local < arg;
+    }
 
-      int main(void) {
-        int local;
+    int main(void)
+    {
+      int local;
 
-        f = stack_grows_downwards;
-        return f((uintptr_t)&local) ? 0 : 1;
-      }
-    ]] ZEND_CHECK_STACK_LIMIT)
-  endif()
+      f = stack_grows_downwards;
+      return f((uintptr_t)&local) ? 0 : 1;
+    }
+  ]] ZEND_CHECK_STACK_LIMIT)
 cmake_pop_check_state()
 
 if(ZEND_CHECK_STACK_LIMIT)
   message(CHECK_PASS "yes")
-elseif(CMAKE_CROSSCOMPILING)
-  message(CHECK_FAIL "no (cross-compiling)")
 else()
   message(CHECK_FAIL "no")
 endif()

cmake/cmake/toolchains/template.cmake

@@ -54,3 +54,6 @@ set(PHP_WRITE_STDOUT_EXITCODE 0)
 
 # TODO: Fix this better.
 set(ZEND_MM_OUTPUT "(size_t)8 (size_t)3 0")
+
+# Set to exit code of the stack limit check.
+set(ZEND_CHECK_STACK_LIMIT_EXITCODE 1)