95 lines · cpp
1//===-- sanitizer_procmaps_haiku.cpp --------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8//9// Information about the process mappings10// (Haiku-specific parts).11//===----------------------------------------------------------------------===//12 13#include "sanitizer_platform.h"14#if SANITIZER_HAIKU15# include "sanitizer_common.h"16# include "sanitizer_procmaps.h"17 18# include <kernel/OS.h>19 20namespace __sanitizer {21 22void MemoryMappedSegment::AddAddressRanges(LoadedModule *module) {23 // data_ should be unused on this platform24 CHECK(!data_);25 module->addAddressRange(start, end, IsExecutable(), IsWritable());26}27 28MemoryMappingLayout::MemoryMappingLayout(bool) { Reset(); }29 30void MemoryMappingLayout::Reset() { data_.cookie = 0; }31 32MemoryMappingLayout::~MemoryMappingLayout() {}33 34// static35void MemoryMappingLayout::CacheMemoryMappings() {}36 37bool MemoryMappingLayout::Next(MemoryMappedSegment *segment) {38 area_info info;39 if (get_next_area_info(B_CURRENT_TEAM, &data_.cookie, &info) != B_OK)40 return false;41 42 segment->start = (uptr)info.address;43 segment->end = (uptr)info.address + info.size;44 segment->offset = 0;45 segment->protection = 0;46 if (info.protection & B_READ_AREA)47 segment->protection |= kProtectionRead;48 if (info.protection & B_WRITE_AREA)49 segment->protection |= kProtectionWrite;50 if (info.protection & B_EXECUTE_AREA)51 segment->protection |= kProtectionExecute;52 if (segment->filename) {53 uptr len = Min((uptr)B_OS_NAME_LENGTH, segment->filename_size - 1);54 internal_strncpy(segment->filename, info.name, len);55 segment->filename[len] = 0;56 }57 return true;58}59 60bool MemoryMappingLayout::Error() const { return false; }61 62void MemoryMappingLayout::DumpListOfModules(63 InternalMmapVectorNoCtor<LoadedModule> *modules) {64 Reset();65 InternalMmapVector<char> module_name(kMaxPathLength);66 MemoryMappedSegment segment(module_name.data(), module_name.size());67 for (uptr i = 0; Next(&segment); i++) {68 const char *cur_name = segment.filename;69 if (cur_name[0] == '\0')70 continue;71 // Don't subtract 'cur_beg' from the first entry:72 // * If a binary is compiled w/o -pie, then the first entry in73 // process maps is likely the binary itself (all dynamic libs74 // are mapped higher in address space). For such a binary,75 // instruction offset in binary coincides with the actual76 // instruction address in virtual memory (as code section77 // is mapped to a fixed memory range).78 // * If a binary is compiled with -pie, all the modules are79 // mapped high at address space (in particular, higher than80 // shadow memory of the tool), so the module can't be the81 // first entry.82 uptr base_address = (i ? segment.start : 0) - segment.offset;83 LoadedModule cur_module;84 cur_module.set(cur_name, base_address);85 segment.AddAddressRanges(&cur_module);86 modules->push_back(cur_module);87 }88}89 90void GetMemoryProfile(fill_profile_f cb, uptr *stats) {}91 92} // namespace __sanitizer93 94#endif95