185 bool MemMap::CheckMapRequest(uint8_t* expected_ptr, void* actual_ptr, size_t byte_count,  in CheckMapRequest()  argument
202   int result = TargetMUnmap(actual_ptr, byte_count);  in CheckMapRequest()
204     PLOG(WARNING) << StringPrintf("munmap(%p, %zd) failed", actual_ptr, byte_count);  in CheckMapRequest()
231                               size_t byte_count,  in CheckReservation()  argument
247   if (byte_count > reservation.Size()) {  in CheckReservation()
249                               byte_count,  in CheckReservation()
306                             size_t byte_count,  in MapAnonymous()  argument
316   if (byte_count == 0) {  in MapAnonymous()
320   size_t page_aligned_byte_count = RoundUp(byte_count, kPageSize);  in MapAnonymous()
329     DCHECK(ContainedWithinExistingMap(addr, byte_count, error_msg)) << *error_msg;  in MapAnonymous()
333     if (!CheckReservation(addr, byte_count, name, *reservation, error_msg)) {  in MapAnonymous()
381     reservation->ReleaseReservedMemory(byte_count);  in MapAnonymous()
385                 byte_count,  in MapAnonymous()
392 MemMap MemMap::MapPlaceholder(const char* name, uint8_t* addr, size_t byte_count) {  in MapPlaceholder()  argument
393   if (byte_count == 0) {  in MapPlaceholder()
396   const size_t page_aligned_byte_count = RoundUp(byte_count, kPageSize);  in MapPlaceholder()
397   return MemMap(name, addr, byte_count, addr, page_aligned_byte_count, 0, /* reuse= */ true);  in MapPlaceholder()
482                                 size_t byte_count,  in MapFileAtAddress()  argument
503     DCHECK(ContainedWithinExistingMap(expected_ptr, byte_count, error_msg))  in MapFileAtAddress()
508     if (!CheckReservation(expected_ptr, byte_count, filename, *reservation, error_msg)) {  in MapFileAtAddress()
518   if (byte_count == 0) {  in MapFileAtAddress()
526   size_t page_aligned_byte_count = RoundUp(byte_count + page_offset, kPageSize);  in MapFileAtAddress()
566     const uint8_t *real_end = actual + page_offset + byte_count;  in MapFileAtAddress()
577     reservation->ReleaseReservedMemory(byte_count);  in MapFileAtAddress()
581                 byte_count,  in MapFileAtAddress()
780 MemMap MemMap::TakeReservedMemory(size_t byte_count) {  in TakeReservedMemory()  argument
782   ReleaseReservedMemory(byte_count);  // Performs necessary DCHECK()s on this reservation.  in TakeReservedMemory()
783   size_t base_size = RoundUp(byte_count, kPageSize);  in TakeReservedMemory()
784   return MemMap(name_, begin, byte_count, begin, base_size, prot_, /* reuse= */ false);  in TakeReservedMemory()
787 void MemMap::ReleaseReservedMemory(size_t byte_count) {  in ReleaseReservedMemory()  argument
799   DCHECK_NE(byte_count, 0u);  in ReleaseReservedMemory()
800   DCHECK_LE(byte_count, size_);  in ReleaseReservedMemory()
801   byte_count = RoundUp(byte_count, kPageSize);  in ReleaseReservedMemory()
803   if (byte_count == size_) {  in ReleaseReservedMemory()
810     begin_ += byte_count;  in ReleaseReservedMemory()
811     size_ -= byte_count;  in ReleaseReservedMemory()