Add prelinking support for static libraries.prelink

1 files changed, 26 insertions, 0 deletions

diff --git a/run_unittests.py b/run_unittests.py
index 956031965..a461df5f2 100755
--- a/run_unittests.py
+++ b/run_unittests.py
@@ -7389,6 +7389,32 @@ class LinuxlikeTests(BasePlatformTests):
             content = f.read()
             self.assertNotIn('-lfoo', content)
 
+    def test_prelinking(self):
+        # Prelinking currently only works on recently new GNU toolchains.
+        # Skip everything else. When support for other toolchains is added,
+        # remove limitations as necessary.
+        if is_osx():
+            raise unittest.SkipTest('Prelinking not supported on Darwin.')
+        if 'clang' in os.environ.get('CC', 'dummy'):
+            raise unittest.SkipTest('Prelinking not supported with Clang.')
+        gccver = subprocess.check_output(['cc', '--version'])
+        if b'7.5.0' in gccver:
+            raise unittest.SkipTest('GCC on Bionic is too old to be supported.')
+        testdir = os.path.join(self.unit_test_dir, '87 prelinking')
+        self.init(testdir)
+        self.build()
+        outlib = os.path.join(self.builddir, 'libprelinked.a')
+        ar = shutil.which('ar')
+        self.assertTrue(os.path.exists(outlib))
+        self.assertTrue(ar is not None)
+        p = subprocess.run([ar, 't', outlib],
+                           stdout=subprocess.PIPE,
+                           stderr=subprocess.DEVNULL,
+                           universal_newlines=True, timeout=1)
+        obj_files = p.stdout.strip().split('\n')
+        self.assertEqual(len(obj_files), 1)
+        self.assertTrue(obj_files[0].endswith('-prelink.o'))
+
 class BaseLinuxCrossTests(BasePlatformTests):
     # Don't pass --libdir when cross-compiling. We have tests that
     # check whether meson auto-detects it correctly.