/* * Copyright (C) 2012 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 __TEST_UTILS_H #define __TEST_UTILS_H #include #include #include "private/ScopeGuard.h" struct map_record { uintptr_t addr_start; uintptr_t addr_end; int perms; size_t offset; dev_t device; ino_t inode; std::string pathname; }; class Maps { public: static bool parse_maps(std::vector* maps) { FILE* fp = fopen("/proc/self/maps", "re"); if (fp == nullptr) { return false; } auto fp_guard = make_scope_guard([&]() { fclose(fp); }); char line[BUFSIZ]; while (fgets(line, sizeof(line), fp) != nullptr) { map_record record; uint32_t dev_major, dev_minor; int path_offset; char prot[5]; // sizeof("rwxp") if (sscanf(line, "%" SCNxPTR "-%" SCNxPTR " %4s %" SCNxPTR " %x:%x %lu %n", &record.addr_start, &record.addr_end, prot, &record.offset, &dev_major, &dev_minor, &record.inode, &path_offset) == 7) { record.perms = 0; if (prot[0] == 'r') { record.perms |= PROT_READ; } if (prot[1] == 'w') { record.perms |= PROT_WRITE; } if (prot[2] == 'x') { record.perms |= PROT_EXEC; } // TODO: parse shared/private? record.device = makedev(dev_major, dev_minor); record.pathname = line + path_offset; if (!record.pathname.empty() && record.pathname.back() == '\n') { record.pathname.pop_back(); } maps->push_back(record); } } return true; } }; #endif