[Lldb-commits] [PATCH] D42853: Resolve binary symlinks before finding its separate .debug file

[Jan Kratochvil via Phabricator via lldb-commits]

jankratochvil updated this revision to Diff 132670.
jankratochvil marked an inline comment as done.
jankratochvil added a comment.

Simplify the testcase by: lldbutil.run_to_name_breakpoint


https://reviews.llvm.org/D42853

Files:
  packages/Python/lldbsuite/test/linux/sepdebugsymlink/Makefile
  packages/Python/lldbsuite/test/linux/sepdebugsymlink/TestTargetSymbolsSepDebugSymlink.py
  packages/Python/lldbsuite/test/linux/sepdebugsymlink/main.c
  source/Host/common/Symbols.cpp


Index: source/Host/common/Symbols.cpp
===================================================================
--- source/Host/common/Symbols.cpp
+++ source/Host/common/Symbols.cpp
@@ -9,6 +9,7 @@
 
 #include "lldb/Host/Symbols.h"
 #include "lldb/Core/ModuleSpec.h"
+#include "lldb/Host/FileSystem.h"
 #include "lldb/Symbol/ObjectFile.h"
 #include "lldb/Target/Target.h"
 #include "lldb/Utility/ArchSpec.h"
@@ -221,7 +222,11 @@
         Target::GetDefaultDebugFileSearchPaths());
 
     // Add module directory.
-    const ConstString &file_dir = module_spec.GetFileSpec().GetDirectory();
+    FileSpec module_file_spec = module_spec.GetFileSpec();
+    // We keep the unresolved pathname if it fails.
+    FileSystem::ResolveSymbolicLink(module_file_spec, module_file_spec);
+
+    const ConstString &file_dir = module_file_spec.GetDirectory();
     debug_file_search_paths.AppendIfUnique(
         FileSpec(file_dir.AsCString("."), true));
 
@@ -276,7 +281,7 @@
         FileSpec file_spec(filename, true);
 
         if (llvm::sys::fs::equivalent(file_spec.GetPath(),
-                                      module_spec.GetFileSpec().GetPath()))
+                                      module_file_spec.GetPath()))
           continue;
 
         if (file_spec.Exists()) {
Index: packages/Python/lldbsuite/test/linux/sepdebugsymlink/main.c
===================================================================
--- /dev/null
+++ packages/Python/lldbsuite/test/linux/sepdebugsymlink/main.c
@@ -0,0 +1,3 @@
+int main() {
+  return 0;
+}
Index: packages/Python/lldbsuite/test/linux/sepdebugsymlink/TestTargetSymbolsSepDebugSymlink.py
===================================================================
--- /dev/null
+++ packages/Python/lldbsuite/test/linux/sepdebugsymlink/TestTargetSymbolsSepDebugSymlink.py
@@ -0,0 +1,25 @@
+""" Testing separate debug info loading for base binary with a symlink. """
+import os
+import time
+import lldb
+import sys
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+
+class TestTargetSymbolsSepDebugSymlink(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    def setUp(self):
+        TestBase.setUp(self)
+        self.source = 'main.c'
+
+    @no_debug_info_test  # Prevent the genaration of the dwarf version of this test
+    @skipUnlessPlatform(['linux'])
+    def test_target_symbols_sepdebug_symlink_case(self):
+        self.build(clean=True)
+        exe = self.getBuildArtifact("dirsymlink/stripped.symlink")
+
+        lldbutil.run_to_name_breakpoint(self, "main", exe_name = exe)
Index: packages/Python/lldbsuite/test/linux/sepdebugsymlink/Makefile
===================================================================
--- /dev/null
+++ packages/Python/lldbsuite/test/linux/sepdebugsymlink/Makefile
@@ -0,0 +1,20 @@
+LEVEL = ../../make
+C_SOURCES := main.c
+
+all: dirsymlink
+
+dirreal: a.out
+	$(RM) -r $@
+	mkdir $@
+	$(OBJCOPY) --only-keep-debug $< $@/stripped.debug
+	$(OBJCOPY) --strip-all --add-gnu-debuglink=$@/stripped.debug $< $@/stripped.out
+
+dirsymlink: dirreal
+	$(RM) -r $@
+	mkdir $@
+	ln -s ../$</stripped.out $@/stripped.symlink
+
+clean::
+	$(RM) -r dirreal dirsymlink
+
+include $(LEVEL)/Makefile.rules


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