LibSymbolClient: Add helper library for interfacing with SymbolServer

Userland/Libraries/CMakeLists.txt

@@ -26,6 +26,7 @@ add_subdirectory(LibPCIDB)
 add_subdirectory(LibProtocol)
 add_subdirectory(LibPthread)
 add_subdirectory(LibRegex)
+add_subdirectory(LibSymbolClient)
 add_subdirectory(LibTar)
 add_subdirectory(LibTextCodec)
 add_subdirectory(LibThread)

Userland/Libraries/LibSymbolClient/CMakeLists.txt

@@ -0,0 +1,11 @@
+set(SOURCES
+    Client.cpp
+)
+
+set(GENERATED_SOURCES
+    ../../Services/SymbolServer/SymbolClientEndpoint.h
+    ../../Services/SymbolServer/SymbolServerEndpoint.h
+)
+
+serenity_lib(LibSymbolClient symbolclient)
+target_link_libraries(LibSymbolClient LibIPC)

Userland/Libraries/LibSymbolClient/Client.cpp

@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <LibSymbolClient/Client.h>
+
+namespace SymbolClient {
+
+Client::Client()
+    : IPC::ServerConnection<SymbolClientEndpoint, SymbolServerEndpoint>(*this, "/tmp/portal/symbol")
+{
+    handshake();
+}
+
+void Client::handshake()
+{
+    send_sync<Messages::SymbolServer::Greet>();
+}
+
+void Client::handle(const Messages::SymbolClient::Dummy&)
+{
+}
+
+Vector<Symbol> Client::symbolicate(const String& path, const Vector<FlatPtr>& addresses)
+{
+    auto response = send_sync<Messages::SymbolServer::Symbolicate>(path, addresses);
+    if (!response->success())
+        return {};
+
+    Vector<Symbol> symbols;
+    for (auto& symbol : response->symbols()) {
+        Symbol s;
+        s.name = symbol;
+        symbols.append(move(s));
+    }
+    return symbols;
+}
+
+}

Userland/Libraries/LibSymbolClient/Client.h

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <LibIPC/ServerConnection.h>
+#include <SymbolServer/SymbolClientEndpoint.h>
+#include <SymbolServer/SymbolServerEndpoint.h>
+
+namespace SymbolClient {
+
+struct Symbol {
+    FlatPtr address { 0 };
+    String name;
+    u32 offset { 0 };
+    String filename;
+    u32 line_number { 0 };
+};
+
+class Client
+    : public IPC::ServerConnection<SymbolClientEndpoint, SymbolServerEndpoint>
+    , public SymbolClientEndpoint {
+    C_OBJECT(Client);
+
+public:
+    virtual void handshake() override;
+
+    Vector<Symbol> symbolicate(const String& path, const Vector<FlatPtr>& addresses);
+
+private:
+    Client();
+
+    virtual void handle(const Messages::SymbolClient::Dummy&) override;
+};
+
+}