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This plumbs some of the ZX_INFO_PROCESS_MAPS information out into MINIDUMP_MEMORY_INFO. The mapping loses some information that Zircon provides, and some of the data that Windows would provide isn't available (for example, AllocationProtect). But this gives a general idea of the memory layout of the process to check for bad pointers, etc. when inspecting crashes. Bug: fuchsia:DX-615 Change-Id: I2d7c02be0996672253cf0b1eb6a60b0a55e6033b Reviewed-on: https://chromium-review.googlesource.com/c/1377089 Commit-Queue: Scott Graham <scottmg@chromium.org> Reviewed-by: Mark Mentovai <mark@chromium.org>
63 lines
2.2 KiB
C++
63 lines
2.2 KiB
C++
// Copyright 2018 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_SNAPSHOT_FUCHSIA_MEMORY_MAP_FUCHSIA_H_
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#define CRASHPAD_SNAPSHOT_FUCHSIA_MEMORY_MAP_FUCHSIA_H_
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#include <lib/zx/process.h>
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#include <zircon/syscalls/object.h>
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#include <vector>
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#include "util/misc/initialization_state_dcheck.h"
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namespace crashpad {
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//! \brief A list of mappings in the address space of a Fuchsia process.
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class MemoryMapFuchsia {
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public:
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MemoryMapFuchsia();
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~MemoryMapFuchsia();
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//! \brief Initializes this object with information about the mapped memory
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//! regions in the given process.
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//!
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//! \return `true` on success, or `false`, with an error logged.
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bool Initialize(const zx::process& process);
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//! \brief Searches through the previously retrieved memory map for the given
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//! address. If found, returns the deepest `zx_info_maps_t` mapping that
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//! contains \a address.
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//!
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//! \param[in] address The address to locate.
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//! \param[out] map The `zx_info_maps_t` data corresponding to the address.
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//! \return `true` if a mapping for \a address was found, in which case \a map
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//! will be filled out, otherwise `false` and \a map will be unchanged.
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bool FindMappingForAddress(zx_vaddr_t address, zx_info_maps_t* map) const;
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//! \brief Get a vector of `zx_info_maps_t` representing the memory map for
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//! this process.
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const std::vector<zx_info_maps_t>& Entries() const { return map_entries_; }
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private:
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std::vector<zx_info_maps_t> map_entries_;
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InitializationStateDcheck initialized_;
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DISALLOW_COPY_AND_ASSIGN(MemoryMapFuchsia);
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};
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} // namespace crashpad
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#endif // CRASHPAD_SNAPSHOT_FUCHSIA_MEMORY_MAP_FUCHSIA_H_
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