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1aa478d161
This change was partially scripted and partially done manually with vim regex + manually placing the deleted constructors. The script change looked for destructors in the public: section of a class, if that existed the deleted constructors would go before the destructor. For manual placement I looked for any constructor in the public: section of the corresponding class. If there wasn't one, then it would ideally have gone as the first entry except below enums, classes and typedefs. This may not have been perfect, but is hopefully good enough. Fingers crossed. #include "base/macros.h" is removed from files that don't use ignore_result, which is the only other thing defined in base/macros.h. Bug: chromium:1010217 Change-Id: I099526255a40b1ac1264904b4ece2f3f503c9418 Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3171034 Reviewed-by: Mark Mentovai <mark@chromium.org> Commit-Queue: Peter Boström <pbos@chromium.org>
108 lines
3.8 KiB
C++
108 lines
3.8 KiB
C++
// Copyright 2017 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_LINUX_PTRACER_H_
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#define CRASHPAD_UTIL_LINUX_PTRACER_H_
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#include <sys/types.h>
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#include "util/linux/address_types.h"
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#include "util/linux/thread_info.h"
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#include "util/misc/initialization_state_dcheck.h"
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namespace crashpad {
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//! \brief Provides an architecturally agnostic interface for collecting
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//! information with `ptrace`.
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//!
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//! A ptracer is configured for a particular bitness. It is an error to make any
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//! calls via this object against a thread whose bitness does not match the
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//! bitness this object was initialized with.
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class Ptracer {
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public:
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//! \brief Constructs this object with a pre-determined bitness.
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//!
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//! \param[in] is_64_bit `true` if this object is to be configured for 64-bit.
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//! \param[in] can_log Whether methods in this class can log error messages.
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Ptracer(bool is_64_bit, bool can_log);
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//! \brief Constructs this object without a pre-determined bitness.
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//!
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//! Initialize() must be successfully called before making any other calls on
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//! this object.
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//!
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//! \param[in] can_log Whether methods in this class can log error messages.
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explicit Ptracer(bool can_log);
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Ptracer(const Ptracer&) = delete;
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Ptracer& operator=(const Ptracer&) = delete;
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~Ptracer();
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//! \brief Initializes this object to the bitness of the process whose process
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//! ID is \a pid.
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//!
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//! \param[in] pid The process ID of the process to initialize with.
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//! \return `true` on success. `false` on failure with a message logged, if
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//! enabled.
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bool Initialize(pid_t pid);
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//! \brief Return `true` if this object is configured for 64-bit.
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bool Is64Bit();
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//! \brief Uses `ptrace` to collect information about the thread with thread
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//! ID \a tid.
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//!
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//! The target thread should be attached before calling this method.
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//! \see ScopedPtraceAttach
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//!
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//! \param[in] tid The thread ID of the thread to collect information for.
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//! \param[out] info A ThreadInfo for the thread.
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//! \return `true` on success. `false` on failure with a message logged, if
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//! enabled.
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bool GetThreadInfo(pid_t tid, ThreadInfo* info);
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//! \brief Uses `ptrace` to read memory from the process with process ID \a
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//! pid, up to a maximum number of bytes.
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//!
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//! The target process should already be attached before calling this method.
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//! \see ScopedPtraceAttach
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//!
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//! \param[in] pid The process ID whose memory to read.
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//! \param[in] address The base address of the region to read.
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//! \param[in] size The size of the memory region to read. \a buffer must be
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//! at least this size.
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//! \param[out] buffer The buffer to fill with the data read.
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//! \return the number of bytes read, 0 if there are no more bytes to read, or
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//! -1 on failure with a message logged if logging is enabled.
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ssize_t ReadUpTo(pid_t pid,
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LinuxVMAddress address,
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size_t size,
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char* buffer);
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private:
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ssize_t ReadLastBytes(pid_t pid,
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LinuxVMAddress address,
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size_t size,
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char* buffer);
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bool is_64_bit_;
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bool can_log_;
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InitializationStateDcheck initialized_;
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};
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} // namespace crashpad
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#endif // CRASHPAD_UTIL_LINUX_PTRACER_H_
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