Compile the LLDB tests out-of-tree.

This patch is the result of a discussion on lldb-dev, see
http://lists.llvm.org/pipermail/lldb-dev/2018-January/013111.html for
background.

For each test (should be eventually: each test configuration) a
separate build directory is created and we execute

  make VPATH=$srcdir/path/to/test -C $builddir/path/to/test -f $srcdir/path/to/test/Makefile -I $srcdir/path/to/test

In order to make this work all LLDB tests need to be updated to find
the executable in the test build directory, since CWD still points at
the test's source directory, which is a requirement for unittest2.

Although we have done extensive testing, I'm expecting that this first
attempt will break a few bots. Please DO NOT HESITATE TO REVERT this
patch in order to get the bots green again. We will likely have to
iterate on this some more.

Differential Revision: https://reviews.llvm.org/D42281

llvm-svn: 323803

1 files changed, 3 insertions, 3 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/python_api/thread/TestThreadAPI.py b/lldb/packages/Python/lldbsuite/test/python_api/thread/TestThreadAPI.py
index 6b18419aa79..48ebf1793d6 100644
--- a/lldb/packages/Python/lldbsuite/test/python_api/thread/TestThreadAPI.py
+++ b/lldb/packages/Python/lldbsuite/test/python_api/thread/TestThreadAPI.py
@@ -134,7 +134,7 @@ class ThreadAPITestCase(TestBase):
 
     def step_out_of_malloc_into_function_b(self, exe_name):
         """Test Python SBThread.StepOut() API to step out of a malloc call where the call site is at function b()."""
-        exe = os.path.join(os.getcwd(), exe_name)
+        exe = self.getBuildArtifact(exe_name)
 
         target = self.dbg.CreateTarget(exe)
         self.assertTrue(target, VALID_TARGET)
@@ -181,7 +181,7 @@ class ThreadAPITestCase(TestBase):
 
     def step_over_3_times(self, exe_name):
         """Test Python SBThread.StepOver() API."""
-        exe = os.path.join(os.getcwd(), exe_name)
+        exe = self.getBuildArtifact(exe_name)
 
         target = self.dbg.CreateTarget(exe)
         self.assertTrue(target, VALID_TARGET)
@@ -227,7 +227,7 @@ class ThreadAPITestCase(TestBase):
 
     def run_to_address(self, exe_name):
         """Test Python SBThread.RunToAddress() API."""
-        exe = os.path.join(os.getcwd(), exe_name)
+        exe = self.getBuildArtifact(exe_name)
 
         target = self.dbg.CreateTarget(exe)
         self.assertTrue(target, VALID_TARGET)