diff options
Diffstat (limited to 'runtime/mem_map.cc')
| -rw-r--r-- | runtime/mem_map.cc | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/runtime/mem_map.cc b/runtime/mem_map.cc index d6d71f2..6566060 100644 --- a/runtime/mem_map.cc +++ b/runtime/mem_map.cc @@ -439,6 +439,14 @@ MemMap* MemMap::MapAnonymous(const char* name, uint8_t* expected_ptr, size_t byt page_aligned_byte_count, prot, false); } +MemMap* MemMap::MapDummy(const char* name, uint8_t* addr, size_t byte_count) { + if (byte_count == 0) { + return new MemMap(name, nullptr, 0, nullptr, 0, 0, false); + } + const size_t page_aligned_byte_count = RoundUp(byte_count, kPageSize); + return new MemMap(name, addr, byte_count, addr, page_aligned_byte_count, 0, true /* reuse */); +} + MemMap* MemMap::MapFileAtAddress(uint8_t* expected_ptr, size_t byte_count, int prot, int flags, int fd, off_t start, bool reuse, const char* filename, std::string* error_msg) { |