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authorwolfbeast <mcwerewolf@gmail.com>2018-05-24 14:06:04 +0200
committerwolfbeast <mcwerewolf@gmail.com>2018-05-24 14:06:04 +0200
commitac25827a87d86f1cf9e48aab6605f77a2c89041a (patch)
treec3533a008e606f4f6393e838b4305cf6d07f47d2 /tools/profiler/core/shared-libraries-win32.cc
parentc8b38a18031f6ae0fca8b2bef73daa86f6f96ae8 (diff)
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Remove SPS profiler.
- Conditionals and code blocks. (MOZ_ENABLE_PROFILER_SPS) - Stub out several profiler-only functions.
Diffstat (limited to 'tools/profiler/core/shared-libraries-win32.cc')
-rw-r--r--tools/profiler/core/shared-libraries-win32.cc137
1 files changed, 0 insertions, 137 deletions
diff --git a/tools/profiler/core/shared-libraries-win32.cc b/tools/profiler/core/shared-libraries-win32.cc
deleted file mode 100644
index e2db2579b..000000000
--- a/tools/profiler/core/shared-libraries-win32.cc
+++ /dev/null
@@ -1,137 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include <windows.h>
-#include <tlhelp32.h>
-#include <dbghelp.h>
-#include <sstream>
-
-#include "shared-libraries.h"
-#include "nsWindowsHelpers.h"
-
-#define CV_SIGNATURE 0x53445352 // 'SDSR'
-
-struct CodeViewRecord70
-{
- uint32_t signature;
- GUID pdbSignature;
- uint32_t pdbAge;
- char pdbFileName[1];
-};
-
-static bool GetPdbInfo(uintptr_t aStart, nsID& aSignature, uint32_t& aAge, char** aPdbName)
-{
- if (!aStart) {
- return false;
- }
-
- PIMAGE_DOS_HEADER dosHeader = reinterpret_cast<PIMAGE_DOS_HEADER>(aStart);
- if (dosHeader->e_magic != IMAGE_DOS_SIGNATURE) {
- return false;
- }
-
- PIMAGE_NT_HEADERS ntHeaders = reinterpret_cast<PIMAGE_NT_HEADERS>(
- aStart + dosHeader->e_lfanew);
- if (ntHeaders->Signature != IMAGE_NT_SIGNATURE) {
- return false;
- }
-
- uint32_t relativeVirtualAddress =
- ntHeaders->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_DEBUG].VirtualAddress;
- if (!relativeVirtualAddress) {
- return false;
- }
-
- PIMAGE_DEBUG_DIRECTORY debugDirectory =
- reinterpret_cast<PIMAGE_DEBUG_DIRECTORY>(aStart + relativeVirtualAddress);
- if (!debugDirectory || debugDirectory->Type != IMAGE_DEBUG_TYPE_CODEVIEW) {
- return false;
- }
-
- CodeViewRecord70 *debugInfo = reinterpret_cast<CodeViewRecord70 *>(
- aStart + debugDirectory->AddressOfRawData);
- if (!debugInfo || debugInfo->signature != CV_SIGNATURE) {
- return false;
- }
-
- aAge = debugInfo->pdbAge;
- GUID& pdbSignature = debugInfo->pdbSignature;
- aSignature.m0 = pdbSignature.Data1;
- aSignature.m1 = pdbSignature.Data2;
- aSignature.m2 = pdbSignature.Data3;
- memcpy(aSignature.m3, pdbSignature.Data4, sizeof(pdbSignature.Data4));
-
- // The PDB file name could be different from module filename, so report both
- // e.g. The PDB for C:\Windows\SysWOW64\ntdll.dll is wntdll.pdb
- char * leafName = strrchr(debugInfo->pdbFileName, '\\');
- if (leafName) {
- // Only report the file portion of the path
- *aPdbName = leafName + 1;
- } else {
- *aPdbName = debugInfo->pdbFileName;
- }
-
- return true;
-}
-
-static bool IsDashOrBraces(char c)
-{
- return c == '-' || c == '{' || c == '}';
-}
-
-SharedLibraryInfo SharedLibraryInfo::GetInfoForSelf()
-{
- SharedLibraryInfo sharedLibraryInfo;
-
- nsAutoHandle snap(CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, GetCurrentProcessId()));
-
- MODULEENTRY32 module = {0};
- module.dwSize = sizeof(MODULEENTRY32);
- if (Module32First(snap, &module)) {
- do {
- nsID pdbSig;
- uint32_t pdbAge;
- char *pdbName = NULL;
-
- // Load the module again to make sure that its handle will remain remain
- // valid as we attempt to read the PDB information from it. We load the
- // DLL as a datafile so that if the module actually gets unloaded between
- // the call to Module32Next and the following LoadLibraryEx, we don't end
- // up running the now newly loaded module's DllMain function. If the
- // module is already loaded, LoadLibraryEx just increments its refcount.
- //
- // Note that because of the race condition above, merely loading the DLL
- // again is not safe enough, therefore we also need to make sure that we
- // can read the memory mapped at the base address before we can safely
- // proceed to actually access those pages.
- HMODULE handleLock = LoadLibraryEx(module.szExePath, NULL, LOAD_LIBRARY_AS_DATAFILE);
- MEMORY_BASIC_INFORMATION vmemInfo = {0};
- if (handleLock &&
- sizeof(vmemInfo) == VirtualQuery(module.modBaseAddr, &vmemInfo, sizeof(vmemInfo)) &&
- vmemInfo.State == MEM_COMMIT &&
- GetPdbInfo((uintptr_t)module.modBaseAddr, pdbSig, pdbAge, &pdbName)) {
- std::ostringstream stream;
- stream << pdbSig.ToString() << std::hex << pdbAge;
- std::string breakpadId = stream.str();
- std::string::iterator end =
- std::remove_if(breakpadId.begin(), breakpadId.end(), IsDashOrBraces);
- breakpadId.erase(end, breakpadId.end());
- std::transform(breakpadId.begin(), breakpadId.end(),
- breakpadId.begin(), toupper);
-
- SharedLibrary shlib((uintptr_t)module.modBaseAddr,
- (uintptr_t)module.modBaseAddr+module.modBaseSize,
- 0, // DLLs are always mapped at offset 0 on Windows
- breakpadId,
- pdbName);
- sharedLibraryInfo.AddSharedLibrary(shlib);
- }
- FreeLibrary(handleLock); // ok to free null handles
- } while (Module32Next(snap, &module));
- }
-
- return sharedLibraryInfo;
-}
-