[dotest] Use in-tree dsymutil on Darwin

Summary:
With the upstream implementation of dsymutil containing almost all
functionality from the one shipped with Xcode, we want to use the
in-tree version for running the test suite.

This will also allow us to re-enable TestUnicodeSymbols which was
failing because of the discrepancy in how Unicode symbols were hashed in
lldb and older versions of dsymutil.

Reviewers: aprantl, davide, jingham, labath

Subscribers: mgorny, llvm-commits, lldb-commits

Differential Revision: https://reviews.llvm.org/D45518

llvm-svn: 329889

lldb/packages/Python/lldbsuite/test/dotest.py

@@ -301,6 +301,12 @@ def parseOptionsAndInitTestdirs():
                     configuration.compiler = candidate
                     break
 
+    if args.dsymutil:
+      os.environ['DSYMUTIL'] = args.dsymutil
+    else if platform_system == 'Darwin':
+      os.environ['DSYMUTIL'] = seven.get_command_output(
+          'xcrun -find -toolchain default dsymutil')
+
     if args.channels:
         lldbtest_config.channels = args.channels
 

lldb/packages/Python/lldbsuite/test/dotest_args.py

@@ -83,6 +83,8 @@ def create_parser():
         help=textwrap.dedent('''Specify the extra flags to be passed to the toolchain when building the inferior programs to be debugged
                                                            suggestions: do not lump the "-A arch1 -A arch2" together such that the -E option applies to only one of the architectures'''))
 
+    group.add_argument('--dsymutil', metavar='dsymutil', dest='dsymutil', help=textwrap.dedent('Specify Which dsymutil to use.'))
+
     # Test filtering options
     group = parser.add_argument_group('Test filtering options')
     group.add_argument(

lldb/packages/Python/lldbsuite/test/make/Makefile.rules

@@ -147,7 +147,7 @@ ARCHFLAG ?= -arch
 # Change any build/tool options needed
 #----------------------------------------------------------------------
 ifeq "$(OS)" "Darwin"
-	DS := $(shell xcrun -find -toolchain default dsymutil)
+	DS := $(DSYMUTIL)
 	DSFLAGS =
 	DSYM = $(EXE).dSYM
 	AR := $(CROSS_COMPILE)libtool
@@ -668,7 +668,7 @@ endif
 
 #----------------------------------------------------------------------
 # From http://blog.melski.net/tag/debugging-makefiles/
-# 
+#
 # Usage: make print-CC print-CXX print-LD
 #----------------------------------------------------------------------
 print-%:

lldb/test/CMakeLists.txt

@@ -13,7 +13,7 @@ function(add_python_test_target name test_script args comment)
     )
 endfunction()
 
-set(LLDB_TEST_DEPS lldb)
+set(LLDB_TEST_DEPS lldb dsymutil)
 
 # darwin-debug is an hard dependency for the testsuite.
 if (CMAKE_SYSTEM_NAME MATCHES "Darwin")
@@ -67,6 +67,7 @@ set(LLDB_TEST_USER_ARGS
 set(LLDB_TEST_COMMON_ARGS
   --arch=${LLDB_TEST_ARCH}
   --executable $<TARGET_FILE:lldb>
+  --dsymutil $<TARGET_FILE:dsymutil>
   -s
   ${CMAKE_BINARY_DIR}/lldb-test-traces
   --build-dir