1 files changed, 55 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/common/system_utils_linux.cpp b/gfx/angle/checkout/src/common/system_utils_linux.cpp
new file mode 100644
index 0000000000..da0ed86028
--- /dev/null
+++ b/gfx/angle/checkout/src/common/system_utils_linux.cpp
@@ -0,0 +1,55 @@
+//
+// Copyright 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
+{
+std::string GetExecutablePath()
+{
+    // 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 GetExecutableDirectory()
+{
+    std::string executablePath = GetExecutablePath();
+    size_t lastPathSepLoc      = executablePath.find_last_of("/");
+    return (lastPathSepLoc != std::string::npos) ? executablePath.substr(0, lastPathSepLoc) : "";
+}
+
+const char *GetSharedLibraryExtension()
+{
+    return "so";
+}
+
+double GetCurrentSystemTime()
+{
+    struct timespec currentTime;
+    clock_gettime(CLOCK_MONOTONIC, &currentTime);
+    return currentTime.tv_sec + currentTime.tv_nsec * 1e-9;
+}
+
+}  // namespace angle