Author: Armin Rigo <ar...@tunes.org>
Branch:
Changeset: r3247:000711129df0
Date: 2019-03-20 09:27 +0100
http://bitbucket.org/cffi/cffi/changeset/000711129df0/
Log: Issue #406: document the failure
diff --git a/testing/cffi0/test_verify.py b/testing/cffi0/test_verify.py
--- a/testing/cffi0/test_verify.py
+++ b/testing/cffi0/test_verify.py
@@ -2099,6 +2099,11 @@
raise errors[0][1]
def test_errno_working_even_with_pypys_jit():
+ # NOTE: on some platforms, to work correctly, this test needs to be
+ # compiled with -pthread. Otherwise, the accesses to errno done from f()
+ # are compiled by assuming this small library won't be used from multiple
+ # threads, which is wrong. If you see failures _and_ if you pass your
+ # own CFLAGS environment variable, please make sure "-pthread" is in it.
ffi = FFI()
ffi.cdef("int f(int);")
lib = ffi.verify("""
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