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, 16 insertions, 9 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/lldbinline.py b/lldb/packages/Python/lldbsuite/test/lldbinline.py
index 3f10b2a9352..b555a464208 100644
--- a/lldb/packages/Python/lldbsuite/test/lldbinline.py
+++ b/lldb/packages/Python/lldbsuite/test/lldbinline.py
@@ -97,12 +97,14 @@ class InlineTest(TestBase):
             return "-N dsym %s" % (self.mydir)
 
     def BuildMakefile(self):
-        if os.path.exists("Makefile"):
+        self.makeBuildDir()
+        makefilePath = self.getBuildArtifact("Makefile")
+        if os.path.exists(makefilePath):
             return
 
         categories = {}
 
-        for f in os.listdir(os.getcwd()):
+        for f in os.listdir(self.getSourceDir()):
             t = source_type(f)
             if t:
                 if t in list(categories.keys()):
@@ -110,7 +112,7 @@ class InlineTest(TestBase):
                 else:
                     categories[t] = [f]
 
-        makefile = open("Makefile", 'w+')
+        makefile = open(makefilePath, 'w+')
 
         level = os.sep.join(
             [".."] * len(self.mydir.split(os.sep))) + os.sep + "make"
@@ -137,29 +139,33 @@ class InlineTest(TestBase):
     @add_test_categories(["dsym"])
     def __test_with_dsym(self):
         self.using_dsym = True
+        self.debug_info = "dsym"
         self.BuildMakefile()
-        self.buildDsym()
+        self.build()
         self.do_test()
 
     @add_test_categories(["dwarf"])
     def __test_with_dwarf(self):
         self.using_dsym = False
+        self.debug_info = "dwarf"
         self.BuildMakefile()
-        self.buildDwarf()
+        self.build()
         self.do_test()
 
     @add_test_categories(["dwo"])
     def __test_with_dwo(self):
         self.using_dsym = False
+        self.debug_info = "dwo"
         self.BuildMakefile()
-        self.buildDwo()
+        self.build()
         self.do_test()
 
     @add_test_categories(["gmodules"])
     def __test_with_gmodules(self):
         self.using_dsym = False
+        self.debug_info = "gmodules"
         self.BuildMakefile()
-        self.buildGModules()
+        self.build()
         self.do_test()
 
     def execute_user_command(self, __command):
@@ -167,14 +173,15 @@ class InlineTest(TestBase):
 
     def do_test(self):
         exe = self.getBuildArtifact("a.out")
-        source_files = [f for f in os.listdir(os.getcwd()) if source_type(f)]
+        source_files = [f for f in os.listdir(self.getSourceDir())
+                        if source_type(f)]
         target = self.dbg.CreateTarget(exe)
 
         parser = CommandParser()
         parser.parse_source_files(source_files)
         parser.set_breakpoints(target)
 
-        process = target.LaunchSimple(None, None, os.getcwd())
+        process = target.LaunchSimple(None, None, self.getBuildDir())
 
         while lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint):
             thread = lldbutil.get_stopped_thread(