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From 16337b6a4a14c8eb7ae57341aa04d7d571f00783 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20K=2E=20H=C3=BCttel?= <dilfridge@gentoo.org>
Date: Fri, 14 Dec 2018 20:43:04 +0100
Subject: [PATCH 04/14] Force -O0 in conform tests to survive $CC changes
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
In bug #659030 Gentoo started passing user's CFLAGS via $CC variable.
conform tests should but are not ready to handle -O1/-O2 yet.
Tests fail to validate headers due to inlining of weak symbol aliases
and other problems. Let's force it back to -O0 until it's fixed upstream.
Original patch by Sergei, ported to the new python test framework by Andreas
Bug: https://bugs.gentoo.org/659030
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Signed-off-by: Andreas K. Hüttel <dilfridge@gentoo.org>
---
conform/conformtest.py | 6 ++++--
conform/linknamespace.py | 4 +++-
2 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/conform/conformtest.py b/conform/conformtest.py
index 94a7ee110f..90c81ac88e 100644
--- a/conform/conformtest.py
+++ b/conform/conformtest.py
@@ -566,7 +566,7 @@ class HeaderTests(object):
o_file = os.path.join(self.temp_dir, 'test.o')
with open(c_file, 'w') as c_file_out:
c_file_out.write('#include <%s>\n%s' % (self.header, text))
- cmd = ('%s %s -c %s -o %s' % (self.cc, self.cflags, c_file, o_file))
+ cmd = ('%s %s -O0 -c %s -o %s' % (self.cc, self.cflags, c_file, o_file))
try:
subprocess.check_call(cmd, shell=True)
except subprocess.CalledProcessError:
@@ -620,7 +620,9 @@ class HeaderTests(object):
out_file = os.path.join(self.temp_dir, 'namespace-out')
with open(c_file, 'w') as c_file_out:
c_file_out.write('#include <%s>\n' % self.header)
- cmd = ('%s %s -E %s -P -Wp,-dN > %s'
+ # -O0 to negate effect of possible -O<N> passed to $CC
+ # See https://bugs.gentoo.org/659030#c6
+ cmd = ('%s -O0 %s -E %s -P -Wp,-dN > %s'
% (self.cc, self.cflags_namespace, c_file, out_file))
subprocess.check_call(cmd, shell=True)
bad_tokens = set()
diff --git a/conform/linknamespace.py b/conform/linknamespace.py
index f7fe3a7a0a..ad87fd2a6d 100644
--- a/conform/linknamespace.py
+++ b/conform/linknamespace.py
@@ -157,7 +157,9 @@ def main():
files_seen = set()
all_undef = {}
current_undef = {}
- compiler = '%s %s' % (args.cc, args.flags)
+ # -O0 avoid failures like
+ # '[initial] ptsname_r -> [libc.a(ptsname.o)] ptsname'
+ compiler = '%s %s -O0' % (args.cc, args.flags)
c_syms = glibcconform.list_exported_functions(compiler, args.standard,
args.header)
with tempfile.TemporaryDirectory() as temp_dir:
--
2.34.1
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