forked from mirrors/gecko-dev
22d1a37a79
Differential Revision: https://phabricator.services.mozilla.com/D69731 --HG-- extra : moz-landing-system : lando
74 lines
1.6 KiB
C++
74 lines
1.6 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "GLLibraryLoader.h"
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#include <regex>
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#include "mozilla/gfx/Logging.h"
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#include "nsDebug.h"
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#ifdef WIN32
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# include <windows.h>
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#endif
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namespace mozilla {
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namespace gl {
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void ClearSymbols(const SymLoadStruct* const firstStruct) {
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for (auto itr = firstStruct; itr->symPointer; ++itr) {
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*itr->symPointer = nullptr;
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}
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}
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bool SymbolLoader::LoadSymbols(const SymLoadStruct* const firstStruct,
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const bool warnOnFailures) const {
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bool ok = true;
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for (auto itr = firstStruct; itr->symPointer; ++itr) {
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*itr->symPointer = nullptr;
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for (const auto& s : itr->symNames) {
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if (!s) break;
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const auto p = GetProcAddress(s);
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if (p) {
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*itr->symPointer = p;
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break;
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}
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}
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if (!*itr->symPointer) {
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if (warnOnFailures) {
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printf_stderr("Can't find symbol '%s'.\n", itr->symNames[0]);
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}
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ok = false;
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}
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}
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return ok;
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}
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// -
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PRFuncPtr SymbolLoader::GetProcAddress(const char* const name) const {
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#ifdef DEBUG
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static const std::regex kRESymbol("[a-z].*");
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if (!std::regex_match(name, kRESymbol)) {
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gfxCriticalError() << "Bad symbol name : " << name;
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}
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#endif
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PRFuncPtr ret = nullptr;
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if (!ret && mLib) {
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ret = PR_FindFunctionSymbol(mLib, name);
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}
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if (!ret && mPfn) {
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ret = mPfn(name);
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}
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return ret;
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}
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} // namespace gl
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} // namespace mozilla
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