[Symbolizer][Debuginfo] Add debuginfod client to llvm-symbolizer.

Adds a fallback to use the debuginfod client library (386655) in `findDebugBinary`.
Fixed a cast of Erorr::success() to Expected<> in debuginfod library.
Added Debuginfod to Symbolize deps in gn.
Updates compiler-rt/lib/sanitizer_common/symbolizer/scripts/build_symbolizer.sh to include Debuginfod library to fix sanitizer-x86_64-linux breakage.

Reviewed By: jhenderson, vitalybuka

Differential Revision: https://reviews.llvm.org/D113717

1 files changed, 3 insertions, 0 deletions

diff --git a/llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp b/llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp
index 2adbf1f..66a2e70 100644
--- a/llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp
+++ b/llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp
@@ -19,6 +19,7 @@
 #include "llvm/Config/config.h"
 #include "llvm/DebugInfo/Symbolize/DIPrinter.h"
 #include "llvm/DebugInfo/Symbolize/Symbolize.h"
+#include "llvm/Debuginfod/HTTPClient.h"
 #include "llvm/Option/Arg.h"
 #include "llvm/Option/ArgList.h"
 #include "llvm/Option/Option.h"
@@ -261,6 +262,8 @@ static FunctionNameKind decideHowToPrintFunctions(const opt::InputArgList &Args,
 
 int main(int argc, char **argv) {
   InitLLVM X(argc, argv);
+  // The HTTPClient must be initialized for use by the debuginfod client.
+  HTTPClient::initialize();
   sys::InitializeCOMRAII COM(sys::COMThreadingMode::MultiThreaded);
 
   bool IsAddr2Line = sys::path::stem(argv[0]).contains("addr2line");