зеркало из https://github.com/mozilla/gecko-dev.git
75 строки
2.2 KiB
C++
75 строки
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* 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 https://mozilla.org/MPL/2.0/. */
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#include "WindowsFallbackLoaderAPI.h"
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namespace mozilla {
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ModuleLoadInfo FallbackLoaderAPI::ConstructAndNotifyBeginDllLoad(
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void** aContext, PCUNICODE_STRING aRequestedDllName) {
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ModuleLoadInfo loadInfo(aRequestedDllName);
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MOZ_ASSERT(mLoaderObserver);
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if (mLoaderObserver) {
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mLoaderObserver->OnBeginDllLoad(aContext, aRequestedDllName);
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}
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return loadInfo;
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}
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bool FallbackLoaderAPI::SubstituteForLSP(PCUNICODE_STRING aLSPLeafName,
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PHANDLE aOutHandle) {
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MOZ_ASSERT(mLoaderObserver);
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if (!mLoaderObserver) {
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return false;
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}
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return mLoaderObserver->SubstituteForLSP(aLSPLeafName, aOutHandle);
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}
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void FallbackLoaderAPI::NotifyEndDllLoad(void* aContext, NTSTATUS aLoadNtStatus,
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ModuleLoadInfo&& aModuleLoadInfo) {
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aModuleLoadInfo.SetEndLoadTimeStamp();
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if (NT_SUCCESS(aLoadNtStatus)) {
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aModuleLoadInfo.CaptureBacktrace();
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}
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MOZ_ASSERT(mLoaderObserver);
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if (mLoaderObserver) {
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mLoaderObserver->OnEndDllLoad(aContext, aLoadNtStatus,
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std::move(aModuleLoadInfo));
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}
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}
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nt::AllocatedUnicodeString FallbackLoaderAPI::GetSectionName(
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void* aSectionAddr) {
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static const StaticDynamicallyLinkedFunctionPtr<decltype(
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&::NtQueryVirtualMemory)>
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pNtQueryVirtualMemory(L"ntdll.dll", "NtQueryVirtualMemory");
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MOZ_ASSERT(pNtQueryVirtualMemory);
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if (!pNtQueryVirtualMemory) {
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return nt::AllocatedUnicodeString();
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}
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nt::MemorySectionNameBuf buf;
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NTSTATUS ntStatus =
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pNtQueryVirtualMemory(::GetCurrentProcess(), aSectionAddr,
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MemorySectionName, &buf, sizeof(buf), nullptr);
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if (!NT_SUCCESS(ntStatus)) {
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return nt::AllocatedUnicodeString();
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}
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return nt::AllocatedUnicodeString(&buf.mSectionFileName);
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}
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void FallbackLoaderAPI::SetObserver(nt::LoaderObserver* aLoaderObserver) {
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mLoaderObserver = aLoaderObserver;
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}
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} // namespace mozilla
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