On Sat, Jul 01, 2017 at 07:42:11PM -0700, Mark Millard wrote:
> powerpc64 is having programs crash with an attempt
> to store addresses over code instead of into
> __cleanup_info__ when fgets is used. ntpd is an
> example. As is sshd (although I've looked at
> its details less).

Yes, I think you are right.  I also see how this worked on amd64,
where I tested the change.

Try this.

diff --git a/lib/libc/gen/_pthread_stubs.c b/lib/libc/gen/_pthread_stubs.c
index 18a23216d50..fcf7ff04fed 100644
--- a/lib/libc/gen/_pthread_stubs.c
+++ b/lib/libc/gen/_pthread_stubs.c
@@ -279,10 +279,11 @@ STUB_FUNC2(pthread_kill, PJT_KILL, int, void *, int)
 STUB_FUNC2(pthread_setcancelstate, PJT_SETCANCELSTATE, int, int, void *)
 STUB_FUNC2(pthread_setcanceltype, PJT_SETCANCELTYPE, int, int, void *)
 STUB_FUNC(pthread_testcancel, PJT_TESTCANCEL, void)
-STUB_FUNC1(__pthread_cleanup_pop_imp, PJT_CLEANUP_POP_IMP, int, int)
-STUB_FUNC2(__pthread_cleanup_push_imp, PJT_CLEANUP_PUSH_IMP, void, void*, void 
-STUB_FUNC1(_pthread_cancel_enter, PJT_CANCEL_ENTER, int, int)
-STUB_FUNC1(_pthread_cancel_leave, PJT_CANCEL_LEAVE, int, int)
+STUB_FUNC1(__pthread_cleanup_pop_imp, PJT_CLEANUP_POP_IMP, void, int)
+STUB_FUNC3(__pthread_cleanup_push_imp, PJT_CLEANUP_PUSH_IMP, void, void *,
+    void *, void *);
+STUB_FUNC1(_pthread_cancel_enter, PJT_CANCEL_ENTER, void, int)
+STUB_FUNC1(_pthread_cancel_leave, PJT_CANCEL_LEAVE, void, int)
 static int
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