mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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128 lines
4.3 KiB
C++
128 lines
4.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2011
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Jeff Muizelaar <jmuizelaar@mozilla.com>
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* Vladan Djeric <vdjeric@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include <windows.h>
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#include <tlhelp32.h>
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#include <dbghelp.h>
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#include "shared-libraries.h"
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#include "nsWindowsHelpers.h"
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#define CV_SIGNATURE 0x53445352 // 'SDSR'
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struct CodeViewRecord70
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{
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uint32_t signature;
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GUID pdbSignature;
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uint32_t pdbAge;
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uint8_t pdbFileName[1];
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};
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static bool GetPdbInfo(uintptr_t aStart, nsID& aSignature, uint32_t& aAge)
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{
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if (!aStart) {
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return false;
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}
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PIMAGE_DOS_HEADER dosHeader = reinterpret_cast<PIMAGE_DOS_HEADER>(aStart);
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if (dosHeader->e_magic != IMAGE_DOS_SIGNATURE) {
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return false;
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}
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PIMAGE_NT_HEADERS ntHeaders = reinterpret_cast<PIMAGE_NT_HEADERS>(
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aStart + dosHeader->e_lfanew);
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if (ntHeaders->Signature != IMAGE_NT_SIGNATURE) {
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return false;
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}
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uint32_t relativeVirtualAddress =
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ntHeaders->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_DEBUG].VirtualAddress;
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if (!relativeVirtualAddress) {
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return false;
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}
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PIMAGE_DEBUG_DIRECTORY debugDirectory =
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reinterpret_cast<PIMAGE_DEBUG_DIRECTORY>(aStart + relativeVirtualAddress);
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if (!debugDirectory || debugDirectory->Type != IMAGE_DEBUG_TYPE_CODEVIEW) {
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return false;
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}
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CodeViewRecord70 *debugInfo = reinterpret_cast<CodeViewRecord70 *>(
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aStart + debugDirectory->AddressOfRawData);
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if (!debugInfo || debugInfo->signature != CV_SIGNATURE) {
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return false;
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}
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aAge = debugInfo->pdbAge;
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GUID& pdbSignature = debugInfo->pdbSignature;
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aSignature.m0 = pdbSignature.Data1;
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aSignature.m1 = pdbSignature.Data2;
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aSignature.m2 = pdbSignature.Data3;
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memcpy(aSignature.m3, pdbSignature.Data4, sizeof(pdbSignature.Data4));
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return true;
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}
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SharedLibraryInfo SharedLibraryInfo::GetInfoForSelf()
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{
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SharedLibraryInfo sharedLibraryInfo;
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nsAutoHandle snap(CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, GetCurrentProcessId()));
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MODULEENTRY32 module = {0};
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module.dwSize = sizeof(MODULEENTRY32);
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if (Module32First(snap, &module)) {
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do {
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nsID pdbSig;
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uint32_t pdbAge;
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if (GetPdbInfo((uintptr_t)module.modBaseAddr, pdbSig, pdbAge)) {
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SharedLibrary shlib((uintptr_t)module.modBaseAddr,
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(uintptr_t)module.modBaseAddr+module.modBaseSize,
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0, // DLLs are always mapped at offset 0 on Windows
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pdbSig,
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pdbAge,
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module.szModule);
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sharedLibraryInfo.AddSharedLibrary(shlib);
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}
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} while (Module32Next(snap, &module));
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}
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return sharedLibraryInfo;
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}
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