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On Windows (and probably elsewhere) it's possible that something else on the system changes the memory map between when a memory snapshot range is added to the minidump, and when the process's memory is actually read from the target and written to the .dmp file. As a result, failing the Read() should not result in aborting the minidump's write, which it previously would have. Bug: crashpad:234 Change-Id: Ib24e255a34fa2e1758621d3955ebc7a0f96166e2 Reviewed-on: https://chromium-review.googlesource.com/1096452 Reviewed-by: Joshua Peraza <jperaza@chromium.org> Commit-Queue: Scott Graham <scottmg@chromium.org>
98 lines
3.8 KiB
C++
98 lines
3.8 KiB
C++
// Copyright 2014 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_MINIDUMP_TEST_MINIDUMP_MEMORY_WRITER_TEST_UTIL_H_
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#define CRASHPAD_MINIDUMP_TEST_MINIDUMP_MEMORY_WRITER_TEST_UTIL_H_
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#include "minidump/minidump_memory_writer.h"
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#include <windows.h>
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#include <dbghelp.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include <string>
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#include "base/macros.h"
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#include "snapshot/test/test_memory_snapshot.h"
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#include "util/file/file_writer.h"
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namespace crashpad {
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namespace test {
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//! \brief A SnapshotMinidumpMemoryWriter implementation used for testing.
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//!
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//! TestMinidumpMemoryWriter objects are created with a fixed base address and
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//! size, and will write the same byte (\a value) repeatedly, \a size times.
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class TestMinidumpMemoryWriter final : public SnapshotMinidumpMemoryWriter {
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public:
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TestMinidumpMemoryWriter(uint64_t base_address, size_t size, uint8_t value);
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~TestMinidumpMemoryWriter();
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void SetShouldFailRead(bool should_fail);
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private:
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TestMemorySnapshot test_snapshot_;
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DISALLOW_COPY_AND_ASSIGN(TestMinidumpMemoryWriter);
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};
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//! \brief Verifies, via gtest assertions, that a MINIDUMP_MEMORY_DESCRIPTOR
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//! structure contains expected values.
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//!
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//! In \a expected and \a observed,
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//! MINIDUMP_MEMORY_DESCRIPTOR::StartOfMemoryRange and
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//! MINIDUMP_LOCATION_DESCRIPTOR::DataSize are compared and must match. If
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//! MINIDUMP_LOCATION_DESCRIPTOR::Rva is nonzero in \a expected, the same field
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//! in \a observed must match it, subject to a 16-byte alignment augmentation.
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//!
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//! \param[in] expected A MINIDUMP_MEMORY_DESCRIPTOR structure containing
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//! expected values.
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//! \param[in] observed A MINIDUMP_MEMORY_DESCRIPTOR structure containing
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//! observed values.
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void ExpectMinidumpMemoryDescriptor(const MINIDUMP_MEMORY_DESCRIPTOR* expected,
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const MINIDUMP_MEMORY_DESCRIPTOR* observed);
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//! \brief Verifies, via gtest assertions, that a MINIDUMP_MEMORY_DESCRIPTOR
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//! structure contains expected values, and that the memory region it points
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//! to contains expected values assuming it was written by a
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//! TestMinidumpMemoryWriter object.
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//!
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//! \a expected and \a observed are compared by
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//! ExpectMinidumpMemoryDescriptor().
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//!
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//! \param[in] expected A MINIDUMP_MEMORY_DESCRIPTOR structure containing
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//! expected values.
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//! \param[in] observed A MINIDUMP_MEMORY_DESCRIPTOR structure containing
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//! observed values.
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//! \param[in] file_contents The contents of the minidump file in which \a
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//! observed was found. The memory region referenced by \a observed will be
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//! read from this string.
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//! \param[in] value The \a value used to create a TestMinidumpMemoryWriter.
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//! Each byte of memory in the region referenced by \a observed must be this
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//! value.
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//! \param[in] at_eof If `true`, the region referenced by \a observed must
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//! appear at the end of \a file_contents, without any data following it.
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void ExpectMinidumpMemoryDescriptorAndContents(
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const MINIDUMP_MEMORY_DESCRIPTOR* expected,
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const MINIDUMP_MEMORY_DESCRIPTOR* observed,
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const std::string& file_contents,
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uint8_t value,
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bool at_eof);
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} // namespace test
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} // namespace crashpad
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#endif // CRASHPAD_MINIDUMP_TEST_MINIDUMP_MEMORY_WRITER_TEST_UTIL_H_
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