1 files changed, 89 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/common/system_utils_linux.cpp b/src/3rdparty/angle/src/common/system_utils_linux.cpp
new file mode 100644
index 0000000000..98ab4cce6d
--- /dev/null
+++ b/src/3rdparty/angle/src/common/system_utils_linux.cpp
@@ -0,0 +1,89 @@
+//
+// Copyright (c) 2015 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// system_utils_linux.cpp: Implementation of OS-specific functions for Linux
+
+#include "system_utils.h"
+
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <array>
+
+namespace angle
+{
+
+namespace
+{
+
+std::string GetExecutablePathImpl()
+{
+    // We cannot use lstat to get the size of /proc/self/exe as it always returns 0
+    // so we just use a big buffer and hope the path fits in it.
+    char path[4096];
+
+    ssize_t result = readlink("/proc/self/exe", path, sizeof(path) - 1);
+    if (result < 0 || static_cast<size_t>(result) >= sizeof(path) - 1)
+    {
+        return "";
+    }
+
+    path[result] = '\0';
+    return path;
+}
+
+std::string GetExecutableDirectoryImpl()
+{
+    std::string executablePath = GetExecutablePath();
+    size_t lastPathSepLoc      = executablePath.find_last_of("/");
+    return (lastPathSepLoc != std::string::npos) ? executablePath.substr(0, lastPathSepLoc) : "";
+}
+
+}  // anonymous namespace
+
+const char *GetExecutablePath()
+{
+    // TODO(jmadill): Make global static string thread-safe.
+    const static std::string &exePath = GetExecutablePathImpl();
+    return exePath.c_str();
+}
+
+const char *GetExecutableDirectory()
+{
+    // TODO(jmadill): Make global static string thread-safe.
+    const static std::string &exeDir = GetExecutableDirectoryImpl();
+    return exeDir.c_str();
+}
+
+const char *GetSharedLibraryExtension()
+{
+    return "so";
+}
+
+Optional<std::string> GetCWD()
+{
+    std::array<char, 4096> pathBuf;
+    char *result = getcwd(pathBuf.data(), pathBuf.size());
+    if (result == nullptr)
+    {
+        return Optional<std::string>::Invalid();
+    }
+    return std::string(pathBuf.data());
+}
+
+bool SetCWD(const char *dirName)
+{
+    return (chdir(dirName) == 0);
+}
+
+bool SetEnvironmentVar(const char *variableName, const char *value)
+{
+    return (setenv(variableName, value, 1) == 0);
+}
+
+}  // namespace angle