diff options
Diffstat (limited to 'security/sandbox/chromium/base/debug')
| -rw-r--r-- | security/sandbox/chromium/base/debug/alias.cc | 23 | ||||
| -rw-r--r-- | security/sandbox/chromium/base/debug/alias.h | 21 | ||||
| -rw-r--r-- | security/sandbox/chromium/base/debug/debugger.h | 44 | ||||
| -rw-r--r-- | security/sandbox/chromium/base/debug/leak_annotations.h | 46 | ||||
| -rw-r--r-- | security/sandbox/chromium/base/debug/profiler.cc | 221 | ||||
| -rw-r--r-- | security/sandbox/chromium/base/debug/profiler.h | 91 |
6 files changed, 0 insertions, 446 deletions
diff --git a/security/sandbox/chromium/base/debug/alias.cc b/security/sandbox/chromium/base/debug/alias.cc deleted file mode 100644 index 6b0caaa6d..000000000 --- a/security/sandbox/chromium/base/debug/alias.cc +++ /dev/null @@ -1,23 +0,0 @@ -// Copyright (c) 2011 The Chromium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -#include "base/debug/alias.h" -#include "build/build_config.h" - -namespace base { -namespace debug { - -#if defined(COMPILER_MSVC) -#pragma optimize("", off) -#endif - -void Alias(const void* var) { -} - -#if defined(COMPILER_MSVC) -#pragma optimize("", on) -#endif - -} // namespace debug -} // namespace base diff --git a/security/sandbox/chromium/base/debug/alias.h b/security/sandbox/chromium/base/debug/alias.h deleted file mode 100644 index 3b2ab64f3..000000000 --- a/security/sandbox/chromium/base/debug/alias.h +++ /dev/null @@ -1,21 +0,0 @@ -// Copyright (c) 2011 The Chromium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -#ifndef BASE_DEBUG_ALIAS_H_ -#define BASE_DEBUG_ALIAS_H_ - -#include "base/base_export.h" - -namespace base { -namespace debug { - -// Make the optimizer think that var is aliased. This is to prevent it from -// optimizing out variables that that would not otherwise be live at the point -// of a potential crash. -void BASE_EXPORT Alias(const void* var); - -} // namespace debug -} // namespace base - -#endif // BASE_DEBUG_ALIAS_H_ diff --git a/security/sandbox/chromium/base/debug/debugger.h b/security/sandbox/chromium/base/debug/debugger.h deleted file mode 100644 index 8680e281e..000000000 --- a/security/sandbox/chromium/base/debug/debugger.h +++ /dev/null @@ -1,44 +0,0 @@ -// Copyright (c) 2011 The Chromium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -// This is a cross platform interface for helper functions related to -// debuggers. You should use this to test if you're running under a debugger, -// and if you would like to yield (breakpoint) into the debugger. - -#ifndef BASE_DEBUG_DEBUGGER_H_ -#define BASE_DEBUG_DEBUGGER_H_ - -#include "base/base_export.h" - -namespace base { -namespace debug { - -// Waits wait_seconds seconds for a debugger to attach to the current process. -// When silent is false, an exception is thrown when a debugger is detected. -BASE_EXPORT bool WaitForDebugger(int wait_seconds, bool silent); - -// Returns true if the given process is being run under a debugger. -// -// On OS X, the underlying mechanism doesn't work when the sandbox is enabled. -// To get around this, this function caches its value. -// -// WARNING: Because of this, on OS X, a call MUST be made to this function -// BEFORE the sandbox is enabled. -BASE_EXPORT bool BeingDebugged(); - -// Break into the debugger, assumes a debugger is present. -BASE_EXPORT void BreakDebugger(); - -// Used in test code, this controls whether showing dialogs and breaking into -// the debugger is suppressed for debug errors, even in debug mode (normally -// release mode doesn't do this stuff -- this is controlled separately). -// Normally UI is not suppressed. This is normally used when running automated -// tests where we want a crash rather than a dialog or a debugger. -BASE_EXPORT void SetSuppressDebugUI(bool suppress); -BASE_EXPORT bool IsDebugUISuppressed(); - -} // namespace debug -} // namespace base - -#endif // BASE_DEBUG_DEBUGGER_H_ diff --git a/security/sandbox/chromium/base/debug/leak_annotations.h b/security/sandbox/chromium/base/debug/leak_annotations.h deleted file mode 100644 index dc502461d..000000000 --- a/security/sandbox/chromium/base/debug/leak_annotations.h +++ /dev/null @@ -1,46 +0,0 @@ -// Copyright (c) 2011 The Chromium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -#ifndef BASE_DEBUG_LEAK_ANNOTATIONS_H_ -#define BASE_DEBUG_LEAK_ANNOTATIONS_H_ - -#include "base/macros.h" -#include "build/build_config.h" - -// This file defines macros which can be used to annotate intentional memory -// leaks. Support for annotations is implemented in LeakSanitizer. Annotated -// objects will be treated as a source of live pointers, i.e. any heap objects -// reachable by following pointers from an annotated object will not be -// reported as leaks. -// -// ANNOTATE_SCOPED_MEMORY_LEAK: all allocations made in the current scope -// will be annotated as leaks. -// ANNOTATE_LEAKING_OBJECT_PTR(X): the heap object referenced by pointer X will -// be annotated as a leak. - -#if defined(LEAK_SANITIZER) && !defined(OS_NACL) - -#include <sanitizer/lsan_interface.h> - -class ScopedLeakSanitizerDisabler { - public: - ScopedLeakSanitizerDisabler() { __lsan_disable(); } - ~ScopedLeakSanitizerDisabler() { __lsan_enable(); } - private: - DISALLOW_COPY_AND_ASSIGN(ScopedLeakSanitizerDisabler); -}; - -#define ANNOTATE_SCOPED_MEMORY_LEAK \ - ScopedLeakSanitizerDisabler leak_sanitizer_disabler; static_cast<void>(0) - -#define ANNOTATE_LEAKING_OBJECT_PTR(X) __lsan_ignore_object(X); - -#else - -#define ANNOTATE_SCOPED_MEMORY_LEAK ((void)0) -#define ANNOTATE_LEAKING_OBJECT_PTR(X) ((void)0) - -#endif - -#endif // BASE_DEBUG_LEAK_ANNOTATIONS_H_ diff --git a/security/sandbox/chromium/base/debug/profiler.cc b/security/sandbox/chromium/base/debug/profiler.cc deleted file mode 100644 index 75e9aac0c..000000000 --- a/security/sandbox/chromium/base/debug/profiler.cc +++ /dev/null @@ -1,221 +0,0 @@ -// Copyright (c) 2012 The Chromium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -#include "base/debug/profiler.h" - -#include <string> - -#include "base/debug/debugging_flags.h" -#include "base/process/process_handle.h" -#include "base/strings/string_number_conversions.h" -#include "base/strings/string_util.h" -#include "build/build_config.h" - -#if defined(OS_WIN) -#include "base/win/pe_image.h" -#endif // defined(OS_WIN) - -// TODO(peria): Enable profiling on Windows. -#if BUILDFLAG(ENABLE_PROFILING) && !defined(NO_TCMALLOC) && !defined(OS_WIN) -#include "third_party/tcmalloc/chromium/src/gperftools/profiler.h" -#endif - -namespace base { -namespace debug { - -// TODO(peria): Enable profiling on Windows. -#if BUILDFLAG(ENABLE_PROFILING) && !defined(NO_TCMALLOC) && !defined(OS_WIN) - -static int profile_count = 0; - -void StartProfiling(const std::string& name) { - ++profile_count; - std::string full_name(name); - std::string pid = IntToString(GetCurrentProcId()); - std::string count = IntToString(profile_count); - ReplaceSubstringsAfterOffset(&full_name, 0, "{pid}", pid); - ReplaceSubstringsAfterOffset(&full_name, 0, "{count}", count); - ProfilerStart(full_name.c_str()); -} - -void StopProfiling() { - ProfilerFlush(); - ProfilerStop(); -} - -void FlushProfiling() { - ProfilerFlush(); -} - -bool BeingProfiled() { - return ProfilingIsEnabledForAllThreads(); -} - -void RestartProfilingAfterFork() { - ProfilerRegisterThread(); -} - -#else - -void StartProfiling(const std::string& name) { -} - -void StopProfiling() { -} - -void FlushProfiling() { -} - -bool BeingProfiled() { - return false; -} - -void RestartProfilingAfterFork() { -} - -#endif - -#if !defined(OS_WIN) - -bool IsBinaryInstrumented() { - return false; -} - -ReturnAddressLocationResolver GetProfilerReturnAddrResolutionFunc() { - return NULL; -} - -DynamicFunctionEntryHook GetProfilerDynamicFunctionEntryHookFunc() { - return NULL; -} - -AddDynamicSymbol GetProfilerAddDynamicSymbolFunc() { - return NULL; -} - -MoveDynamicSymbol GetProfilerMoveDynamicSymbolFunc() { - return NULL; -} - -#else // defined(OS_WIN) - -// http://blogs.msdn.com/oldnewthing/archive/2004/10/25/247180.aspx -extern "C" IMAGE_DOS_HEADER __ImageBase; - -bool IsBinaryInstrumented() { - enum InstrumentationCheckState { - UNINITIALIZED, - INSTRUMENTED_IMAGE, - NON_INSTRUMENTED_IMAGE, - }; - - static InstrumentationCheckState state = UNINITIALIZED; - - if (state == UNINITIALIZED) { - HMODULE this_module = reinterpret_cast<HMODULE>(&__ImageBase); - base::win::PEImage image(this_module); - - // Check to be sure our image is structured as we'd expect. - DCHECK(image.VerifyMagic()); - - // Syzygy-instrumented binaries contain a PE image section named ".thunks", - // and all Syzygy-modified binaries contain the ".syzygy" image section. - // This is a very fast check, as it only looks at the image header. - if ((image.GetImageSectionHeaderByName(".thunks") != NULL) && - (image.GetImageSectionHeaderByName(".syzygy") != NULL)) { - state = INSTRUMENTED_IMAGE; - } else { - state = NON_INSTRUMENTED_IMAGE; - } - } - DCHECK(state != UNINITIALIZED); - - return state == INSTRUMENTED_IMAGE; -} - -namespace { - -struct FunctionSearchContext { - const char* name; - FARPROC function; -}; - -// Callback function to PEImage::EnumImportChunks. -bool FindResolutionFunctionInImports( - const base::win::PEImage &image, const char* module_name, - PIMAGE_THUNK_DATA unused_name_table, PIMAGE_THUNK_DATA import_address_table, - PVOID cookie) { - FunctionSearchContext* context = - reinterpret_cast<FunctionSearchContext*>(cookie); - - DCHECK_NE(static_cast<FunctionSearchContext*>(NULL), context); - DCHECK_EQ(static_cast<FARPROC>(NULL), context->function); - - // Our import address table contains pointers to the functions we import - // at this point. Let's retrieve the first such function and use it to - // find the module this import was resolved to by the loader. - const wchar_t* function_in_module = - reinterpret_cast<const wchar_t*>(import_address_table->u1.Function); - - // Retrieve the module by a function in the module. - const DWORD kFlags = GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | - GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT; - HMODULE module = NULL; - if (!::GetModuleHandleEx(kFlags, function_in_module, &module)) { - // This can happen if someone IAT patches us to a thunk. - return true; - } - - // See whether this module exports the function we're looking for. - FARPROC exported_func = ::GetProcAddress(module, context->name); - if (exported_func != NULL) { - // We found it, return the function and terminate the enumeration. - context->function = exported_func; - return false; - } - - // Keep going. - return true; -} - -template <typename FunctionType> -FunctionType FindFunctionInImports(const char* function_name) { - if (!IsBinaryInstrumented()) - return NULL; - - HMODULE this_module = reinterpret_cast<HMODULE>(&__ImageBase); - base::win::PEImage image(this_module); - - FunctionSearchContext ctx = { function_name, NULL }; - image.EnumImportChunks(FindResolutionFunctionInImports, &ctx); - - return reinterpret_cast<FunctionType>(ctx.function); -} - -} // namespace - -ReturnAddressLocationResolver GetProfilerReturnAddrResolutionFunc() { - return FindFunctionInImports<ReturnAddressLocationResolver>( - "ResolveReturnAddressLocation"); -} - -DynamicFunctionEntryHook GetProfilerDynamicFunctionEntryHookFunc() { - return FindFunctionInImports<DynamicFunctionEntryHook>( - "OnDynamicFunctionEntry"); -} - -AddDynamicSymbol GetProfilerAddDynamicSymbolFunc() { - return FindFunctionInImports<AddDynamicSymbol>( - "AddDynamicSymbol"); -} - -MoveDynamicSymbol GetProfilerMoveDynamicSymbolFunc() { - return FindFunctionInImports<MoveDynamicSymbol>( - "MoveDynamicSymbol"); -} - -#endif // defined(OS_WIN) - -} // namespace debug -} // namespace base diff --git a/security/sandbox/chromium/base/debug/profiler.h b/security/sandbox/chromium/base/debug/profiler.h deleted file mode 100644 index 7cce7b08f..000000000 --- a/security/sandbox/chromium/base/debug/profiler.h +++ /dev/null @@ -1,91 +0,0 @@ -// Copyright (c) 2012 The Chromium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -#ifndef BASE_DEBUG_PROFILER_H_ -#define BASE_DEBUG_PROFILER_H_ - -#include <stddef.h> - -#include <string> - -#include "base/base_export.h" - -// The Profiler functions allow usage of the underlying sampling based -// profiler. If the application has not been built with the necessary -// flags (-DENABLE_PROFILING and not -DNO_TCMALLOC) then these functions -// are noops. -namespace base { -namespace debug { - -// Start profiling with the supplied name. -// {pid} will be replaced by the process' pid and {count} will be replaced -// by the count of the profile run (starts at 1 with each process). -BASE_EXPORT void StartProfiling(const std::string& name); - -// Stop profiling and write out data. -BASE_EXPORT void StopProfiling(); - -// Force data to be written to file. -BASE_EXPORT void FlushProfiling(); - -// Returns true if process is being profiled. -BASE_EXPORT bool BeingProfiled(); - -// Reset profiling after a fork, which disables timers. -BASE_EXPORT void RestartProfilingAfterFork(); - -// Returns true iff this executable is instrumented with the Syzygy profiler. -BASE_EXPORT bool IsBinaryInstrumented(); - -// There's a class of profilers that use "return address swizzling" to get a -// hook on function exits. This class of profilers uses some form of entry hook, -// like e.g. binary instrumentation, or a compiler flag, that calls a hook each -// time a function is invoked. The hook then switches the return address on the -// stack for the address of an exit hook function, and pushes the original -// return address to a shadow stack of some type. When in due course the CPU -// executes a return to the exit hook, the exit hook will do whatever work it -// does on function exit, then arrange to return to the original return address. -// This class of profiler does not play well with programs that look at the -// return address, as does e.g. V8. V8 uses the return address to certain -// runtime functions to find the JIT code that called it, and from there finds -// the V8 data structures associated to the JS function involved. -// A return address resolution function is used to fix this. It allows such -// programs to resolve a location on stack where a return address originally -// resided, to the shadow stack location where the profiler stashed it. -typedef uintptr_t (*ReturnAddressLocationResolver)( - uintptr_t return_addr_location); - -// This type declaration must match V8's FunctionEntryHook. -typedef void (*DynamicFunctionEntryHook)(uintptr_t function, - uintptr_t return_addr_location); - -// The functions below here are to support profiling V8-generated code. -// V8 has provisions for generating a call to an entry hook for newly generated -// JIT code, and it can push symbol information on code generation and advise -// when the garbage collector moves code. The functions declarations below here -// make glue between V8's facilities and a profiler. - -// This type declaration must match V8's FunctionEntryHook. -typedef void (*DynamicFunctionEntryHook)(uintptr_t function, - uintptr_t return_addr_location); - -typedef void (*AddDynamicSymbol)(const void* address, - size_t length, - const char* name, - size_t name_len); -typedef void (*MoveDynamicSymbol)(const void* address, const void* new_address); - - -// If this binary is instrumented and the instrumentation supplies a function -// for each of those purposes, find and return the function in question. -// Otherwise returns NULL. -BASE_EXPORT ReturnAddressLocationResolver GetProfilerReturnAddrResolutionFunc(); -BASE_EXPORT DynamicFunctionEntryHook GetProfilerDynamicFunctionEntryHookFunc(); -BASE_EXPORT AddDynamicSymbol GetProfilerAddDynamicSymbolFunc(); -BASE_EXPORT MoveDynamicSymbol GetProfilerMoveDynamicSymbolFunc(); - -} // namespace debug -} // namespace base - -#endif // BASE_DEBUG_PROFILER_H_ |