commit 5f5b187bfa17254f5ae55593820fc938c45c2b32
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Tue Apr 30 14:30:44 2019 -0700
committer GitHub <noreply@github.com> Tue Apr 30 14:30:44 2019 -0700
tree a0f4bfc3982925fa60c79b9f4ba610d82220015d
parent 4d723e76e1ad17e9e7d5e828e59bb47e76f2174b

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


Initialize "stack_t current_stack" to zero using memset().
(cherry picked from commit b84cb70880a0acfcbbaca7bcda405af08f94d269)

Co-authored-by: Victor Stinner <vstinner@redhat.com>

Misc/NEWS.d/next/Library/2019-04-26-17-14-20.bpo-36734.p2MaiN.rst

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
new file mode 100644
index 0000000..0934199
--- /dev/null
+++ 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()``.

Modules/faulthandler.c

diff --git a/Modules/faulthandler.c b/Modules/faulthandler.c
index cf24c9b..ec51928 100644
--- a/Modules/faulthandler.c
+++ b/Modules/faulthandler.c
@@ -1369,7 +1369,8 @@
 #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.