Add a debuginfo version check for RenderScript modules

Added an extra field parser to the `RSModuleDescriptor` class enabling us to
check whether the versions of LLVM used to generated the debug symbols match
across the RenderScript compiler frontend (llvm-rs-cc) and backend (bcc); if
they do not, we warn the user that the debugging experience may be suboptimal
as LLVM IR debug information has no compatibility guarantees.

llvm-svn: 290957

1 files changed, 7 insertions, 0 deletions

diff --git a/lldb/source/Plugins/LanguageRuntime/RenderScript/RenderScriptRuntime/RenderScriptRuntime.h b/lldb/source/Plugins/LanguageRuntime/RenderScript/RenderScriptRuntime/RenderScriptRuntime.h
index a1211a2814b..5b2bb57ac8c 100644
--- a/lldb/source/Plugins/LanguageRuntime/RenderScript/RenderScriptRuntime/RenderScriptRuntime.h
+++ b/lldb/source/Plugins/LanguageRuntime/RenderScript/RenderScriptRuntime/RenderScriptRuntime.h
@@ -203,6 +203,11 @@ struct RSReductionDescriptor {
 };
 
 class RSModuleDescriptor {
+  std::string m_slang_version;
+  std::string m_bcc_version;
+
+  bool ParseVersionInfo(llvm::StringRef *, size_t n_lines);
+
   bool ParseExportForeachCount(llvm::StringRef *, size_t n_lines);
 
   bool ParseExportVarCount(llvm::StringRef *, size_t n_lines);
@@ -222,6 +227,8 @@ public:
 
   void Dump(Stream &strm) const;
 
+  void WarnIfVersionMismatch(Stream *s) const;
+
   const lldb::ModuleSP m_module;
   std::vector<RSKernelDescriptor> m_kernels;
   std::vector<RSGlobalDescriptor> m_globals;