Author: Richard Plangger <planri...@gmail.com>
Branch: s390x-backend
Changeset: r81922:dcf9b353608e
Date: 2016-01-22 18:03 +0100
http://bitbucket.org/pypy/pypy/changeset/dcf9b353608e/
Log: added comment to my last commit
diff --git a/rpython/rlib/rposix.py b/rpython/rlib/rposix.py
--- a/rpython/rlib/rposix.py
+++ b/rpython/rlib/rposix.py
@@ -871,6 +871,9 @@
lltype.free(status_p, flavor='raw')
def _make_waitmacro(name):
+ # note that rffi.INT as first parameter type is intentional.
+ # on s390x providing a lltype.Signed as param type, the
+ # macro wrapper function will always return 0
c_func = external(name, [rffi.INT], lltype.Signed,
macro=_MACRO_ON_POSIX)
returning_int = name in ('WEXITSTATUS', 'WSTOPSIG', 'WTERMSIG')
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