Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 106 insertions, 0 deletions

diff --git a/third_party/libwebrtc/modules/audio_device/linux/latebindingsymboltable_linux.cc b/third_party/libwebrtc/modules/audio_device/linux/latebindingsymboltable_linux.cc
new file mode 100644
index 0000000000..751edafd8b
--- /dev/null
+++ b/third_party/libwebrtc/modules/audio_device/linux/latebindingsymboltable_linux.cc
@@ -0,0 +1,106 @@
+/*
+ *  Copyright (c) 2010 The WebRTC 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 in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "modules/audio_device/linux/latebindingsymboltable_linux.h"
+
+#include "absl/strings/string_view.h"
+#include "rtc_base/logging.h"
+
+#ifdef WEBRTC_LINUX
+#include <dlfcn.h>
+#endif
+
+namespace webrtc {
+namespace adm_linux {
+
+inline static const char* GetDllError() {
+#ifdef WEBRTC_LINUX
+  char* err = dlerror();
+  if (err) {
+    return err;
+  } else {
+    return "No error";
+  }
+#else
+#error Not implemented
+#endif
+}
+
+DllHandle InternalLoadDll(absl::string_view dll_name) {
+#ifdef WEBRTC_LINUX
+  DllHandle handle = dlopen(std::string(dll_name).c_str(), RTLD_NOW);
+#else
+#error Not implemented
+#endif
+  if (handle == kInvalidDllHandle) {
+    RTC_LOG(LS_WARNING) << "Can't load " << dll_name << " : " << GetDllError();
+  }
+  return handle;
+}
+
+void InternalUnloadDll(DllHandle handle) {
+#ifdef WEBRTC_LINUX
+// TODO(pbos): Remove this dlclose() exclusion when leaks and suppressions from
+// here are gone (or AddressSanitizer can display them properly).
+//
+// Skip dlclose() on AddressSanitizer as leaks including this module in the
+// stack trace gets displayed as <unknown module> instead of the actual library
+// -> it can not be suppressed.
+// https://code.google.com/p/address-sanitizer/issues/detail?id=89
+#if !defined(ADDRESS_SANITIZER)
+  if (dlclose(handle) != 0) {
+    RTC_LOG(LS_ERROR) << GetDllError();
+  }
+#endif  // !defined(ADDRESS_SANITIZER)
+#else
+#error Not implemented
+#endif
+}
+
+static bool LoadSymbol(DllHandle handle,
+                       absl::string_view symbol_name,
+                       void** symbol) {
+#ifdef WEBRTC_LINUX
+  *symbol = dlsym(handle, std::string(symbol_name).c_str());
+  char* err = dlerror();
+  if (err) {
+    RTC_LOG(LS_ERROR) << "Error loading symbol " << symbol_name << " : " << err;
+    return false;
+  } else if (!*symbol) {
+    RTC_LOG(LS_ERROR) << "Symbol " << symbol_name << " is NULL";
+    return false;
+  }
+  return true;
+#else
+#error Not implemented
+#endif
+}
+
+// This routine MUST assign SOME value for every symbol, even if that value is
+// NULL, or else some symbols may be left with uninitialized data that the
+// caller may later interpret as a valid address.
+bool InternalLoadSymbols(DllHandle handle,
+                         int num_symbols,
+                         const char* const symbol_names[],
+                         void* symbols[]) {
+#ifdef WEBRTC_LINUX
+  // Clear any old errors.
+  dlerror();
+#endif
+  for (int i = 0; i < num_symbols; ++i) {
+    if (!LoadSymbol(handle, symbol_names[i], &symbols[i])) {
+      return false;
+    }
+  }
+  return true;
+}
+
+}  // namespace adm_linux
+}  // namespace webrtc