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

3 files changed, 16 insertions, 10 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/macosx/find-dsym/deep-bundle/Makefile b/lldb/packages/Python/lldbsuite/test/macosx/find-dsym/deep-bundle/Makefile
index 33b09502378..d52d6f1f0d3 100644
--- a/lldb/packages/Python/lldbsuite/test/macosx/find-dsym/deep-bundle/Makefile
+++ b/lldb/packages/Python/lldbsuite/test/macosx/find-dsym/deep-bundle/Makefile
@@ -1,3 +1,5 @@
+SRCDIR := $(shell dirname $(realpath $(lastword $(MAKEFILE_LIST))))/
+
 CC ?= clang
 
 ifeq "$(ARCH)" ""
@@ -7,12 +9,12 @@ endif
 CFLAGS ?= -g -O0 -arch $(ARCH)
 
 all: clean
-	$(CC) $(CFLAGS) -install_name $(PWD)/MyFramework.framework/Versions/A/MyFramework -dynamiclib -o MyFramework myframework.c
+	$(CC) $(CFLAGS) -install_name $(shell pwd)/MyFramework.framework/Versions/A/MyFramework -dynamiclib -o MyFramework $(SRCDIR)/myframework.c
 	mkdir -p MyFramework.framework/Versions/A/Headers
 	mkdir -p MyFramework.framework/Versions/A/Resources
 	cp MyFramework MyFramework.framework/Versions/A
-	cp MyFramework.h MyFramework.framework/Versions/A/Headers
-	cp Info.plist MyFramework.framework/Versions/A/Resources
+	cp $(SRCDIR)/MyFramework.h MyFramework.framework/Versions/A/Headers
+	cp $(SRCDIR)/Info.plist MyFramework.framework/Versions/A/Resources
 	( cd MyFramework.framework/Versions ; ln -s A Current )
 	( cd MyFramework.framework/ ; ln -s Versions/Current/Headers . )
 	( cd MyFramework.framework/ ; ln -s Versions/Current/MyFramework . )
@@ -21,8 +23,8 @@ all: clean
 	mkdir hide.app
 	rm -f MyFramework
 	tar cf - MyFramework.framework MyFramework.framework.dSYM | ( cd hide.app;tar xBpf -)
-	$(CC) $(CFLAGS) -o deep-bundle main.c -F. -framework MyFramework
-	
+	$(CC) $(CFLAGS) -o deep-bundle $(SRCDIR)/main.c -F. -framework MyFramework
+
 
 clean:
 	rm -rf a.out a.out.dSYM deep-bundle deep-bundle.dSYM MyFramework.framework MyFramework.framework.dSYM MyFramework MyFramework.dSYM hide.app
diff --git a/lldb/packages/Python/lldbsuite/test/macosx/find-dsym/deep-bundle/TestDeepBundle.py b/lldb/packages/Python/lldbsuite/test/macosx/find-dsym/deep-bundle/TestDeepBundle.py
index 493c4b99d09..d6123e39c3f 100644
--- a/lldb/packages/Python/lldbsuite/test/macosx/find-dsym/deep-bundle/TestDeepBundle.py
+++ b/lldb/packages/Python/lldbsuite/test/macosx/find-dsym/deep-bundle/TestDeepBundle.py
@@ -37,9 +37,9 @@ class DeepBundleTestCase(TestBase):
 
     def test_attach_and_check_dsyms(self):
         """Test attach to binary, see if the framework dSYM is found"""
-        exe = os.path.join(os.getcwd(), exe_name)
+        exe = self.getBuildArtifact(exe_name)
         self.build()
-        popen = self.spawnSubprocess(exe)
+        popen = self.spawnSubprocess(exe, [self.getBuildDir()])
         self.addTearDownHook(self.cleanupSubprocesses)
 
         # Give the inferior time to start up, dlopen a bundle, remove the bundle it linked in
@@ -49,7 +49,6 @@ class DeepBundleTestCase(TestBase):
         # binary & dSYM via target.exec-search-paths 
         settings_str = "settings set target.exec-search-paths " + self.get_process_working_directory() + "/hide.app"
         self.runCmd(settings_str)
-
         self.runCmd("process attach -p " + str(popen.pid))
 
         target = self.dbg.GetSelectedTarget()
diff --git a/lldb/packages/Python/lldbsuite/test/macosx/find-dsym/deep-bundle/main.c b/lldb/packages/Python/lldbsuite/test/macosx/find-dsym/deep-bundle/main.c
index 19715216d6c..b5ef5cff74a 100644
--- a/lldb/packages/Python/lldbsuite/test/macosx/find-dsym/deep-bundle/main.c
+++ b/lldb/packages/Python/lldbsuite/test/macosx/find-dsym/deep-bundle/main.c
@@ -1,12 +1,17 @@
 #include <MyFramework/MyFramework.h>
 #include <unistd.h>
+#include <stdio.h>
 #include <stdlib.h>
 
 int setup_is_complete = 0;
 
-int main()
+int main(int argc, const char **argv)
 {
-    system ("/bin/rm -rf MyFramework MyFramework.framework MyFramework.framework.dSYM");
+    char command[8192];
+    sprintf (command,
+             "/bin/rm -rf %s/MyFramework %s/MyFramework.framework %s/MyFramework.framework.dSYM",
+             argv[1], argv[1], argv[1]);
+    system (command);
 
     setup_is_complete = 1;