[LLDB] - Improved DWARF5 support.

This patch improves the support of DWARF5.
Particularly the reporting of source code locations.

Differential revision: https://reviews.llvm.org/D51935

llvm-svn: 342153

2 files changed, 92 insertions, 0 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/show_location/TestShowLocationDwarf5.py b/lldb/packages/Python/lldbsuite/test/functionalities/show_location/TestShowLocationDwarf5.py
new file mode 100644
index 00000000000..a56282efd77
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/show_location/TestShowLocationDwarf5.py
@@ -0,0 +1,34 @@
+import lldb
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test.decorators import *
+
+# This test checks that source code location is shown correctly
+# when DWARF5 debug information is used.
+
+class TestTargetSourceMap(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    def test_source_map(self):
+        # Set the target soure map to map "./" to the current test directory.
+        yaml_path = os.path.join(self.getSourceDir(), "a.yaml")
+        yaml_base, ext = os.path.splitext(yaml_path)
+        obj_path = self.getBuildArtifact(yaml_base)
+        self.yaml2obj(yaml_path, obj_path)
+
+        def cleanup():
+            if os.path.exists(obj_path):
+                os.unlink(obj_path)
+
+        # Execute the cleanup function during test case tear down.
+        self.addTearDownHook(cleanup)
+
+        # Create a target with the object file we just created from YAML
+        target = self.dbg.CreateTarget(obj_path)
+
+        # Check we are able to show the locations properly.
+        self.expect("b main", VALID_BREAKPOINT_LOCATION,
+                    substrs=['main + 13 at test.cpp:2:3, address = 0x000000000040052d'])
+
+        self.expect("b foo", VALID_BREAKPOINT_LOCATION,
+                    substrs=['foo() + 4 at test.cpp:6:1, address = 0x0000000000400534'])
diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/show_location/a.yaml b/lldb/packages/Python/lldbsuite/test/functionalities/show_location/a.yaml
new file mode 100644
index 00000000000..27b119d3df6
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/show_location/a.yaml
@@ -0,0 +1,58 @@
+# This file is a shorten version of the output
+# produced with the following invocations and input:
+# ./clang test.cpp -g -gdwarf-5 -o test.exe
+# ./obj2yaml test.exe > test.yaml
+#
+# // test.cpp
+# int main() {
+#   return 0;
+# }
+# 
+# void foo() {
+# }
+
+--- !ELF
+FileHeader:      
+  Class:           ELFCLASS64
+  Data:            ELFDATA2LSB
+  Type:            ET_EXEC
+  Machine:         EM_X86_64
+  Entry:           0x0000000000400440
+Sections:        
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+...