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, 6 insertions, 4 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/target_command/TestTargetCommand.py b/lldb/packages/Python/lldbsuite/test/functionalities/target_command/TestTargetCommand.py
index 4d5ac02a11a..71bfff1d05d 100644
--- a/lldb/packages/Python/lldbsuite/test/functionalities/target_command/TestTargetCommand.py
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/target_command/TestTargetCommand.py
@@ -62,8 +62,8 @@ class targetCommandTestCase(TestBase):
     def do_target_command(self):
         """Exercise 'target create', 'target list', 'target select' commands."""
         exe_a = self.getBuildArtifact("a.out")
-        exe_b = os.path.join(os.getcwd(), "b.out")
-        exe_c = os.path.join(os.getcwd(), "c.out")
+        exe_b = self.getBuildArtifact("b.out")
+        exe_c = self.getBuildArtifact("c.out")
 
         self.runCmd("target list")
         output = self.res.GetOutput()
@@ -114,7 +114,8 @@ class targetCommandTestCase(TestBase):
 
     def do_target_variable_command(self, exe_name):
         """Exercise 'target variable' command before and after starting the inferior."""
-        self.runCmd("file " + exe_name, CURRENT_EXECUTABLE_SET)
+        self.runCmd("file " + self.getBuildArtifact(exe_name),
+                    CURRENT_EXECUTABLE_SET)
 
         self.expect(
             "target variable my_global_char",
@@ -206,7 +207,8 @@ class targetCommandTestCase(TestBase):
 
     def do_target_variable_command_no_fail(self, exe_name):
         """Exercise 'target variable' command before and after starting the inferior."""
-        self.runCmd("file " + exe_name, CURRENT_EXECUTABLE_SET)
+        self.runCmd("file " + self.getBuildArtifact(exe_name),
+                    CURRENT_EXECUTABLE_SET)
 
         self.expect(
             "target variable my_global_char",