platform_system_core/libmemunreachable/ProcessMappings.h
Yabin Cui 3841accba8 libprocinfo: add functions reading process map file.
Add test and benchmark.
Also switch libbacktrace, libunwindstack, libmemunreachable
to use libprocinfo for map file reading.
The benchmark shows using libprocinfo speeds up map file reading
in libbacktrace and libunwindstack 18% - 36% on walleye.

Bug: http://b/79118393
Test: run procinfo_test.
Test: run libunwindstack_test.
Test: run libbacktrace_test.
Test: run memunreachable_test.

Change-Id: Icf281c352f4103fc8d4ba6732c5c07b943330ca1
2018-05-14 14:00:18 -07:00

47 lines
1.3 KiB
C++

/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef LIBMEMUNREACHABLE_PROCESS_MAPPING_H_
#define LIBMEMUNREACHABLE_PROCESS_MAPPING_H_
#include <string.h>
#include "Allocator.h"
namespace android {
struct Mapping {
uintptr_t begin;
uintptr_t end;
bool read;
bool write;
bool execute;
char name[96];
Mapping() {}
Mapping(uintptr_t begin, uintptr_t end, bool read, bool write, bool execute, const char* name)
: begin(begin), end(end), read(read), write(write), execute(execute) {
strlcpy(this->name, name, sizeof(this->name));
}
};
// This function is not re-entrant since it uses a static buffer for
// the line data.
bool ProcessMappings(pid_t pid, allocator::vector<Mapping>& mappings);
} // namespace android
#endif // LIBMEMUNREACHABLE_PROCESS_MAPPING_H_