bpo-36734: Fix compilation of faulthandler.c on HP-UX (GH-12970)

vstinner · web-flow · commit b84cb70880a0 · 2019-04-30T12:19:34.000+02:00
Initialize "stack_t current_stack" to zero using memset().
diff --git a/Misc/NEWS.d/next/Library/2019-04-26-17-14-20.bpo-36734.p2MaiN.rst b/Misc/NEWS.d/next/Library/2019-04-26-17-14-20.bpo-36734.p2MaiN.rst
@@ -0,0 +1,2 @@
+Fix compilation of ``faulthandler.c`` on HP-UX. Initialize ``stack_t
+current_stack`` to zero using ``memset()``.
diff --git a/Modules/faulthandler.c b/Modules/faulthandler.c
@@ -1370,7 +1370,8 @@ void _PyFaulthandler_Fini(void)
 #ifdef HAVE_SIGALTSTACK
     if (stack.ss_sp != NULL) {
         /* Fetch the current alt stack */
-        stack_t current_stack = {};
+        stack_t current_stack;
+        memset(&current_stack, 0, sizeof(current_stack));
         if (sigaltstack(NULL, &current_stack) == 0) {
             if (current_stack.ss_sp == stack.ss_sp) {
                 /* The current alt stack is the one that we installed.

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	+Fix compilation of ``faulthandler.c`` on HP-UX. Initialize ``stack_t
	`2`	+current_stack`` to zero using ``memset()``.