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2447fbb7fa
The original changeset that is being backed out had comment: Bug 1023941 - Part 5: Loader hook to redirect the missing import. The changes made in bug 1023941 were to work around the fact that with VS2013, msvcr120.dll imports kernel32!GetLogicalProcessorInformation, which is not available on Windows XP SP2. In VS2015, the GetLogicalProcessorInformation requirement has moved into concrt140.dll (concurrency runtime), which we don't use. So, now that our build infra is building with VS2015, we can remove the hooking and static runtime linking required to get the VS2013 fix to work. In addition we need to do that to be able us to link the Chromium sandbox code into firefox.exe and get it to build and run with both VS2015 and VS2013. MozReview-Commit-ID: 1tlXaYJ8dHH --HG-- extra : rebase_source : 49b216e34fc5c77af96df1f67ee44c46d5368bfe
135 lines
3.1 KiB
C++
135 lines
3.1 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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// This file is a .cpp file meant to be included in nsBrowserApp.cpp and other
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// similar bootstrap code. It converts wide-character windows wmain into UTF-8
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// narrow-character strings.
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#ifndef XP_WIN
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#error This file only makes sense on Windows.
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#endif
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#include "nsUTF8Utils.h"
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#include <intrin.h>
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#include <math.h>
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#include "mozilla/WindowsVersion.h"
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#ifndef XRE_DONT_PROTECT_DLL_LOAD
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#include "nsSetDllDirectory.h"
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#endif
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#if defined(__GNUC__)
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#define XRE_DONT_SUPPORT_XPSP2
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#endif
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#ifdef __MINGW32__
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/* MingW currently does not implement a wide version of the
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startup routines. Workaround is to implement something like
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it ourselves. See bug 411826 */
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#include <shellapi.h>
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int wmain(int argc, WCHAR **argv);
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int main(int argc, char **argv)
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{
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LPWSTR commandLine = GetCommandLineW();
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int argcw = 0;
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LPWSTR *argvw = CommandLineToArgvW(commandLine, &argcw);
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if (!argvw)
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return 127;
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int result = wmain(argcw, argvw);
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LocalFree(argvw);
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return result;
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}
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#endif /* __MINGW32__ */
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#define main NS_internal_main
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#ifndef XRE_WANT_ENVIRON
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int main(int argc, char **argv);
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#else
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int main(int argc, char **argv, char **envp);
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#endif
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static char*
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AllocConvertUTF16toUTF8(char16ptr_t arg)
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{
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// be generous... UTF16 units can expand up to 3 UTF8 units
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int len = wcslen(arg);
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char *s = new char[len * 3 + 1];
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if (!s)
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return nullptr;
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ConvertUTF16toUTF8 convert(s);
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convert.write(arg, len);
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convert.write_terminator();
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return s;
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}
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static void
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FreeAllocStrings(int argc, char **argv)
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{
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while (argc) {
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--argc;
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delete [] argv[argc];
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}
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delete [] argv;
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}
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int wmain(int argc, WCHAR **argv)
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{
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#if defined(_MSC_VER) && _MSC_VER < 1900 && defined(_M_X64)
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// Disable CRT use of FMA3 on non-AVX2 CPUs and on Win7RTM due to bug 1160148
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int cpuid0[4] = {0};
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int cpuid7[4] = {0};
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__cpuid(cpuid0, 0); // Get the maximum supported CPUID function
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__cpuid(cpuid7, 7); // AVX2 is function 7, subfunction 0, EBX, bit 5
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if (cpuid0[0] < 7 || !(cpuid7[1] & 0x20) || !mozilla::IsWin7SP1OrLater()) {
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_set_FMA3_enable(0);
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}
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#endif
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#ifndef XRE_DONT_PROTECT_DLL_LOAD
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mozilla::SanitizeEnvironmentVariables();
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SetDllDirectoryW(L"");
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#endif
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char **argvConverted = new char*[argc + 1];
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if (!argvConverted)
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return 127;
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for (int i = 0; i < argc; ++i) {
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argvConverted[i] = AllocConvertUTF16toUTF8(argv[i]);
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if (!argvConverted[i]) {
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return 127;
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}
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}
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argvConverted[argc] = nullptr;
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// need to save argvConverted copy for later deletion.
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char **deleteUs = new char*[argc+1];
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if (!deleteUs) {
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FreeAllocStrings(argc, argvConverted);
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return 127;
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}
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for (int i = 0; i < argc; i++)
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deleteUs[i] = argvConverted[i];
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#ifndef XRE_WANT_ENVIRON
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int result = main(argc, argvConverted);
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#else
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// Force creation of the multibyte _environ variable.
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getenv("PATH");
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int result = main(argc, argvConverted, _environ);
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#endif
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delete[] argvConverted;
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FreeAllocStrings(argc, deleteUs);
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return result;
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}
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