[PATCH] D114846: [llvm] [DebugInfo] LLVM debuginfod server. (WIP)

[Noah Shutty via Phabricator via llvm-commits]

noajshu updated this revision to Diff 403097.
noajshu added a comment.

Set `llvm-debuginfod` to use the hardware concurrency by default or if `-c 0` is passed.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D114846/new/

https://reviews.llvm.org/D114846

Files:
  llvm/tools/llvm-debuginfod/CMakeLists.txt
  llvm/tools/llvm-debuginfod/llvm-debuginfod.cpp


Index: llvm/tools/llvm-debuginfod/llvm-debuginfod.cpp
===================================================================
--- /dev/null
+++ llvm/tools/llvm-debuginfod/llvm-debuginfod.cpp
@@ -0,0 +1,78 @@
+//===-- llvm-debuginfod-find.cpp - Simple CLI for libdebuginfod-client ----===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// This file contains the llvm-debuginfod-find tool. This tool
+/// queries the debuginfod servers in the DEBUGINFOD_URLS environment
+/// variable (delimited by space (" ")) for the executable,
+/// debuginfo, or specified source file of the binary matching the
+/// given build-id.
+///
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Debuginfod/Debuginfod.h"
+#include "llvm/Debuginfod/HTTPClient.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/InitLLVM.h"
+#include "llvm/Support/ThreadPool.h"
+
+using namespace llvm;
+
+cl::OptionCategory DebuginfodCategory("llvm-debuginfod Options");
+
+static cl::list<std::string> ScanPaths(cl::Positional,
+                                       cl::desc("<Directories to scan>"),
+                                       cl::OneOrMore,
+                                       cl::cat(DebuginfodCategory));
+
+static cl::opt<unsigned>
+    Port("p", cl::init(0),
+         cl::desc("Port to listen on. Set to 0 to bind to any available port."),
+         cl::cat(DebuginfodCategory));
+
+static cl::opt<double>
+    ScanInterval("t", cl::init(10000),
+                 cl::desc("Number of seconds to wait between subsequent scans "
+                          "of the filesystem."),
+                 cl::cat(DebuginfodCategory));
+
+static cl::opt<size_t>
+    MaxConcurrency("c", cl::init(0),
+                   cl::desc("Maximum number of files to scan concurrently. If "
+                            "0, use the hardware concurrency."),
+                   cl::cat(DebuginfodCategory));
+
+ExitOnError ExitOnErr;
+
+int main(int argc, char **argv) {
+  InitLLVM X(argc, argv);
+  HTTPClient::initialize();
+  cl::HideUnrelatedOptions({&DebuginfodCategory});
+  cl::ParseCommandLineOptions(argc, argv);
+
+  SmallVector<StringRef, 1> Paths;
+  for (const std::string &Path : ScanPaths)
+    Paths.push_back(Path);
+
+  ThreadPool Pool(hardware_concurrency());
+  if (MaxConcurrency == 0)
+    MaxConcurrency = hardware_concurrency().compute_thread_count();
+
+  DebuginfodCollection Collection(Paths, Pool, MaxConcurrency);
+  DebuginfodServer Server(Collection);
+
+  if (!Port)
+    Port = ExitOnErr(Server.Server.bind());
+  else
+    ExitOnErr(Server.Server.bind(Port));
+  outs() << "Listening on port " << Port << "\n";
+  Pool.async([&]() { ExitOnErr(Server.Server.listen()); });
+  ExitOnErr(Collection.updateForever(
+      std::chrono::milliseconds(static_cast<int>(ScanInterval * 1000))));
+  Pool.wait();
+}
Index: llvm/tools/llvm-debuginfod/CMakeLists.txt
===================================================================
--- /dev/null
+++ llvm/tools/llvm-debuginfod/CMakeLists.txt
@@ -0,0 +1,10 @@
+set(LLVM_LINK_COMPONENTS
+  Debuginfod
+  Support
+  )
+add_llvm_tool(llvm-debuginfod
+  llvm-debuginfod.cpp
+  )
+if(LLVM_INSTALL_BINUTILS_SYMLINKS)
+  add_llvm_tool_symlink(debuginfod llvm-debuginfod)
+endif()


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