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ab6cdb6bc1
This only works 64->64, 32->32, and 64->32. We shouldn't have a need for 32->64. It will also currently not work if the crash service is running on Wow64 itself (that is, 32->32, but on an x64 OS). We should also be able to avoid needing that. Primarily, this change templatizes the winternl.h process structure types on word size, so the PEB can be read in a foreign bitsize process. This also happens to resolve using void* as pointer values into foreign processes, as they're now all either DWORD or DWORD64 depending on which traits class is used. R=mark@chromium.org BUG=crashpad:1 Review URL: https://codereview.chromium.org/981393003
89 lines
2.7 KiB
C++
89 lines
2.7 KiB
C++
// Copyright 2015 The Crashpad Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef CRASHPAD_UTIL_WIN_PROCESS_INFO_H_
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#define CRASHPAD_UTIL_WIN_PROCESS_INFO_H_
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#include <sys/types.h>
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#include <windows.h>
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#include <string>
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#include <vector>
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#include "base/basictypes.h"
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#include "util/misc/initialization_state_dcheck.h"
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namespace crashpad {
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//! \brief Gathers information about a process given its `HANDLE`. This consists
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//! primarily of information stored in the Process Environment Block.
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class ProcessInfo {
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public:
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ProcessInfo();
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~ProcessInfo();
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//! \brief Initializes this object with information about the given
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//! \a process.
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//!
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//! This method must be called successfully prior to calling any other
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//! method in this class. This method may only be called once.
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//!
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//! \return `true` on success, `false` on failure with a message logged.
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bool Initialize(HANDLE process);
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//! \return `true` if the target process is a 64-bit process.
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bool Is64Bit() const;
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//! \return `true` if the target process is running on the Win32-on-Win64
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//! subsystem.
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bool IsWow64() const;
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//! \return The target process's process ID.
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pid_t ProcessID() const;
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//! \return The target process's parent process ID.
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pid_t ParentProcessID() const;
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//! \return The command line from the target process's Process Environment
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//! Block.
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bool CommandLine(std::wstring* command_line) const;
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//! \brief Retrieves the modules loaded into the target process.
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//!
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//! The modules are enumerated in initialization order as detailed in the
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//! Process Environment Block. The main executable will always be the
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//! first element.
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bool Modules(std::vector<std::wstring>* modules) const;
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private:
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template <class T>
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friend bool ReadProcessData(HANDLE process,
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uintptr_t peb_address_uintptr,
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ProcessInfo* process_info);
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pid_t process_id_;
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pid_t inherited_from_process_id_;
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std::wstring command_line_;
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std::vector<std::wstring> modules_;
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bool is_64_bit_;
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bool is_wow64_;
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InitializationStateDcheck initialized_;
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DISALLOW_COPY_AND_ASSIGN(ProcessInfo);
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};
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} // namespace crashpad
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#endif // CRASHPAD_UTIL_WIN_PROCESS_INFO_H_
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