void AddressSpace::delRMem(VAddr begVAddr, VAddr endVAddr){
begVAddr=alignDown(begVAddr,getPageSize());
endVAddr=alignUp(endVAddr,getPageSize());
RAddr begRAddr=pageTable[getVPage(begVAddr)];
free((void *)begRAddr);
for(VAddr pageNum=getVPage(begVAddr);pageNum!=getVPage(endVAddr);pageNum++){
if(pageTable[pageNum]!=begRAddr+(pageNum*getPageSize()-begVAddr))
fatal("AddressSpace::delRMem region not allocated contiguously");
pageTable[pageNum]=0;
}
}
void AddressSpace::newRMem(VAddr begVAddr, VAddr endVAddr){
begVAddr=alignDown(begVAddr,getPageSize());
endVAddr=alignUp(endVAddr,getPageSize());
void *realMem;
if(posix_memalign(&realMem,getPageSize(),endVAddr-begVAddr))
fatal("AddressSpace::newRMem could not allocate memory\n");
for(size_t pageNum=getVPage(begVAddr);pageNum!=getVPage(endVAddr);pageNum++){
if(pageTable[pageNum])
fatal("AddressSpace::newRMem region overlaps with existing memory");
pageTable[pageNum]=(RAddr)realMem+(pageNum*getPageSize()-begVAddr);
}
}
int FilePageStore::_determinePageCount()
{
if(_fseeki64(_pageFile, 0, SEEK_END) == 0)
{
__int64 fileSize64 = _ftelli64(_pageFile);
assert(fileSize64 % (__int64)getPageSize() == 0);
return (int)(fileSize64 / (__int64)getPageSize());
}
else
{
throw Tgs::Exception(_getError("Error in determining page count"));
}
return 0;
}
qreal ReportPageOptions::heightPx()
{
int pageHeight;
if (isPortrait()) {
pageHeight = KoPageFormat::height(KoPageFormat::formatFromString(getPageSize()), KoPageFormat::Portrait);
} else {
pageHeight = KoPageFormat::height(KoPageFormat::formatFromString(getPageSize()), KoPageFormat::Landscape);
}
KoUnit pageUnit(KoUnit::Millimeter);
pageHeight = KoUnit::toInch(pageUnit.fromUserValue(pageHeight)) * KoDpi::dpiY();
return pageHeight;
}
VAddr AddressSpace::findVMemLow(size_t memSize){
size_t needPages=alignUp(memSize,getPageSize())/getPageSize();
size_t foundPages=0;
// Skip the first (zero) page, to avoid making null pointers valid
size_t pageNum=1;
while(foundPages<needPages){
if(pageTable[pageNum])
foundPages=0;
else
foundPages++;
pageNum++;
if(pageNum==pageTable.size())
fatal("AddressSpace::findVMemLow not enough available virtual memory\n");
}
return (pageNum-needPages)*getPageSize();
}
bool IOMapper::start(IOService *provider)
{
OSObject * obj;
if (!super::start(provider))
return false;
if (!initHardware(provider))
return false;
fPageSize = getPageSize();
if (fIsSystem) {
sMapperLock.lock();
IOMapper::gSystem = this;
sMapperLock.wakeup(&IOMapper::gSystem);
sMapperLock.unlock();
}
if (provider)
{
obj = provider->getProperty("iommu-id");
if (!obj)
obj = provider->getProperty("AAPL,phandle");
if (obj)
setProperty(gIOMapperIDKey, obj);
}
return true;
}
boolean RingBuffer::read(uint8_t page[], size_t size) {
uint16_t head = getHead();
uint16_t tail = getTail();
uint16_t pageSize = getPageSize();
boolean retVal = false;
if (getFlipMarker() == 0) {
if (tail < head) {
readPage(tail,pageSize,page,size);
retVal = true;
}
} else {
if (tail + pageSize > bootSectorStart) {
tail = startData;
setTail(tail);
setFlipMarker(0x00);
if (tail < head) {
readPage(tail,pageSize,page,size);
retVal = true;
}
} else {
readPage(tail,pageSize,page,size);
retVal = true;
}
}
return retVal;
}
boolean RingBuffer::write(uint8_t page[], size_t size) {
uint16_t head = getHead();
uint16_t tail = getTail();
uint16_t pageSize = getPageSize();
boolean retVal = false;
// check, if we wrapped
if (getFlipMarker() == 0) {
if (head + pageSize > bootSectorStart) {
// we reached the end of the memory, go to start and flip marker
head = startData;
setHead(head);
setFlipMarker(0xFF);
if (head + pageSize < tail) {
// there is some space, write the page
writePage(head,pageSize,page,size);
retVal = true;
}
} else {
// there is some space, write the page
writePage(head,pageSize,page,size);
retVal = true;
}
} else {
if (head < tail) {
// we have some sapace left
writePage(head,pageSize,page,size);
retVal = true;
}
}
return retVal;
}
// PD_TRACE_DECLARE_FUNCTION ( SDB__DMSSU_DUMPINFO2, "_dmsStorageUnit::dumpInfo" )
void _dmsStorageUnit::dumpInfo ( set<_monStorageUnit> &storageUnitList,
BOOLEAN sys )
{
monStorageUnit su ;
const dmsStorageUnitHeader *dataHeader = _pDataSu->getHeader() ;
PD_TRACE_ENTRY ( SDB__DMSSU_DUMPINFO2 ) ;
if ( !sys && dmsIsSysCSName( CSName() ) )
{
goto done ;
}
ossMemset ( su._name, 0, sizeof ( su._name ) ) ;
ossStrncpy ( su._name, CSName(), DMS_SU_NAME_SZ ) ;
su._pageSize = getPageSize() ;
su._lobPageSize = getLobPageSize() ;
su._sequence = CSSequence() ;
su._numCollections = dataHeader->_numMB ;
su._collectionHWM = dataHeader->_MBHWM ;
su._size = totalSize() ;
su._CSID = CSID() ;
su._logicalCSID = LogicalCSID() ;
storageUnitList.insert ( su ) ;
done :
PD_TRACE_EXIT ( SDB__DMSSU_DUMPINFO2 ) ;
}
/* Returns 0 if physical memory size cannot be identified */
StgWord64 getPhysicalMemorySize (void)
{
static StgWord64 physMemSize = 0;
if (!physMemSize) {
#if defined(darwin_HOST_OS) || defined(ios_HOST_OS)
/* So, darwin doesn't support _SC_PHYS_PAGES, but it does
support getting the raw memory size in bytes through
sysctlbyname(hw.memsize); */
size_t len = sizeof(physMemSize);
int ret = -1;
/* Note hw.memsize is in bytes, so no need to multiply by page size. */
ret = sysctlbyname("hw.memsize", &physMemSize, &len, NULL, 0);
if (ret == -1) {
physMemSize = 0;
return 0;
}
#else
/* We'll politely assume we have a system supporting _SC_PHYS_PAGES
* otherwise. */
W_ pageSize = getPageSize();
long ret = sysconf(_SC_PHYS_PAGES);
if (ret == -1) {
#if defined(DEBUG)
errorBelch("warning: getPhysicalMemorySize: cannot get "
"physical memory size");
#endif
return 0;
}
physMemSize = ret * pageSize;
#endif /* darwin_HOST_OS */
}
return physMemSize;
}
void Scrollbar::setValue(int value) {
XOJ_CHECK_TYPE(Scrollbar);
if (value < gtk_adjustment_get_lower(this->adj)) {
value = gtk_adjustment_get_lower(this->adj);
}
if (value > getMax() - getPageSize()) {
value = getMax() - getPageSize();
}
gtk_adjustment_set_value(this->adj, value);
this->value = value;
gtk_widget_set_visible(this->getWidget(), this->getPageSize() < this->getMax());
}
bool ProcessInfo::blockInMemory(const void* start) {
unsigned char x = 0;
if (mincore(const_cast<void*>(alignToStartOfPage(start)), getPageSize(), &x)) {
log() << "mincore failed: " << errnoWithDescription() << endl;
return 1;
}
return x & 0x1;
}
VAddr AddressSpace::findVMemHigh(size_t memSize){
size_t needPages=alignUp(memSize,getPageSize())/getPageSize();
size_t foundPages=0;
// Skip the last page, it creates addressing problems
// becasue its upper-bound address is 0 due to wrap-around
size_t pageNum=pageTable.size()-1;
while(foundPages<needPages){
pageNum--;
// Can not use page zero because that would make the null pointer valid
if(pageNum==0)
fatal("AddressSpace::findVMemLow not enough available virtual memory\n");
if(pageTable[pageNum]){
foundPages=0;
}else{
foundPages++;
}
}
return pageNum*getPageSize();
}
int _start(int argc, void* argv)
{
printf("Free memory information\n");
MEM_LOC free_frames = getNumberOfFreeFrames();
MEM_LOC page_size = getPageSize();
printf("%i free frames of memory\n", free_frames);
printf("Each frame is %i bytes of memory\n", page_size);
printf("Therefore there are %i MBs of memory left\n", (free_frames * page_size) / 1024 / 1024);
exit(0);
}
bool ProcessInfo::pagesInMemory(const void* start, size_t numPages, vector<char>* out) {
out->resize(numPages);
if (mincore(alignToStartOfPage(start), numPages * getPageSize(), &out->front())) {
log() << "mincore failed: " << errnoWithDescription() << endl;
return false;
}
for (size_t i = 0; i < numPages; ++i) {
(*out)[i] &= 0x1;
}
return true;
}
ChunkAllocator(size_t chunkSize) :
m_ChunkSize(chunkSize), m_AvailableSlots(ChunkAllocatorBlocks), m_pData((char*) malloc(getAllocationSize(chunkSize))) {
assert(PAGE_SIZE == (size_t) getPageSize());
memset(m_UsedSlot, false, ChunkAllocatorBlocks);
char* pBlockStart = reinterpret_cast<char*>(upperPage(reinterpret_cast<size_t>(m_pData)));
const size_t realChunkSize = getChunkSize(chunkSize);
for (int i = 0; i < ChunkAllocatorBlocks; ++i) {
m_SlotData[i] = pBlockStart;
Sentinel *pSentinel = getSentinelFromBlockStart(pBlockStart);
pSentinel->pAllocator = this;
pSentinel->magic = 0xDEADC0DE;
pBlockStart += realChunkSize;
}
}
void AssemblerBuffer::reserve(uint32_t size)
{
if (size > allocatedSize) {
void* oldAllocatedMemory = allocatedMemory;
uint32_t oldAllocatedSize = allocatedSize;
uint32_t alignment = getPageSize();
allocatedSize = std::max<uint32_t>(1024, std::max(2 * allocatedSize, ((size + alignment - 1) / alignment) * alignment));
allocatedMemory = allocateMemory(allocatedSize);
if (oldAllocatedMemory) {
memcpy(allocatedMemory, oldAllocatedMemory, usedSize);
freeMemory(oldAllocatedMemory, oldAllocatedSize);
}
}
}
void setExecutable (void *p, W_ len, rtsBool exec)
{
StgWord pageSize = getPageSize();
/* malloced memory isn't executable by default on OpenBSD */
StgWord mask = ~(pageSize - 1);
StgWord startOfFirstPage = ((StgWord)p ) & mask;
StgWord startOfLastPage = ((StgWord)p + len - 1) & mask;
StgWord size = startOfLastPage - startOfFirstPage + pageSize;
if (mprotect((void*)startOfFirstPage, (size_t)size,
(exec ? PROT_EXEC : 0) | PROT_READ | PROT_WRITE) != 0) {
barf("setExecutable: failed to protect 0x%p\n", p);
}
}
boolean RingBuffer::isFull() {
uint16_t head = getHead();
uint16_t tail = getTail();
uint16_t pageSize = getPageSize();
boolean retVal = false;
if (getFlipMarker() == 0) {
if (head + pageSize > bootSectorStart && startData + pageSize >= tail) {
retVal = false;
}
} else{
retVal = head >= tail;
}
return retVal;
}
void AP_UnixDialog_PageSetup::runModal (XAP_Frame *pFrame)
{
UT_return_if_fail(pFrame);
// snarf the parent pagesize.
m_PageSize = getPageSize();
m_pFrame = pFrame;
// Build the window's widgets and arrange them
GtkWidget * mainWindow = _constructWindow();
UT_return_if_fail(mainWindow);
m_PageSize = getPageSize();
_updatePageSizeList();
switch(abiRunModalDialog(GTK_DIALOG(mainWindow), pFrame, this,
BUTTON_CANCEL, false))
{
case BUTTON_OK:
event_OK() ; break;
default:
event_Cancel() ; break ;
}
abiDestroyWidget ( mainWindow ) ;
}
void VMHeap::initialize()
{
// Get the page size.
pageSize = getPageSize();
// Allocate the virtual address space.
maxCapacity = DefaultMaxVMHeapSize;
capacity = 0;
size = 0;
addressSpace = reserveVirtualAddressSpace(maxCapacity);
if(!addressSpace)
{
fprintf(stderr, "Failed to reserve the VM heap memory address space.\n");
abort();
}
}
bool ProcessInfo::pagesInMemory(const void* start, size_t numPages, vector<char>* out) {
out->resize(numPages);
scoped_array<PSAPI_WORKING_SET_EX_INFORMATION> wsinfo(
new PSAPI_WORKING_SET_EX_INFORMATION[numPages]);
const void* startOfFirstPage = alignToStartOfPage(start);
for (size_t i = 0; i < numPages; i++) {
wsinfo[i].VirtualAddress = reinterpret_cast<void*>(
reinterpret_cast<unsigned long long>(startOfFirstPage) + i * getPageSize());
}
BOOL result = psapiGlobal->QueryWSEx(GetCurrentProcess(),
wsinfo.get(),
sizeof(PSAPI_WORKING_SET_EX_INFORMATION) * numPages);
if (!result) return false;
for (size_t i = 0; i < numPages; ++i) {
(*out)[i] = wsinfo[i].VirtualAttributes.Valid ? 1 : 0;
}
return true;
}
AdjustorWritable allocateExec (W_ bytes, AdjustorExecutable *exec_ret)
{
void *ret;
W_ n;
ACQUIRE_SM_LOCK;
// round up to words.
n = (bytes + sizeof(W_) + 1) / sizeof(W_);
if (n+1 > BLOCK_SIZE_W) {
barf("allocateExec: can't handle large objects");
}
if (exec_block == NULL ||
exec_block->free + n + 1 > exec_block->start + BLOCK_SIZE_W) {
bdescr *bd;
W_ pagesize = getPageSize();
bd = allocGroup(stg_max(1, pagesize / BLOCK_SIZE));
debugTrace(DEBUG_gc, "allocate exec block %p", bd->start);
bd->gen_no = 0;
bd->flags = BF_EXEC;
bd->link = exec_block;
if (exec_block != NULL) {
exec_block->u.back = bd;
}
bd->u.back = NULL;
setExecutable(bd->start, bd->blocks * BLOCK_SIZE, rtsTrue);
exec_block = bd;
}
*(exec_block->free) = n; // store the size of this chunk
exec_block->gen_no += n; // gen_no stores the number of words allocated
ret = exec_block->free + 1;
exec_block->free += n + 1;
RELEASE_SM_LOCK
*exec_ret = ret;
return ret;
}
/**********************************************************
* Verify that the flash is cleared. To save time
* we only check the first word on every page.
* this could be modified to check every word.
**********************************************************/
void verifyFlashIsErased(void)
{
printf("Verifying that flash is erased\n");
uint32_t addr = 0;
uint32_t value;
/* Get flash page size and total size from the target DI page */
int flashSize = getFlashSize();
int pageSize = getPageSize();
while ( addr < flashSize )
{
value = readMem(addr);
if ( value != 0xFFFFFFFF )
{
printf("Error at address 0x%.8x\n"
"Value should be 0xFFFFFFFF, is 0x%.8x\n", addr, value);
RAISE(SWD_ERROR_DEVICE_ERASE_FAILED);
}
addr += pageSize;
}
}
AddressSpace::AddressSpace(void)
// Allocate the entire page table and zero it out
: pageTable((1<<2)*((1<<(8*sizeof(VAddr)-2))/getPageSize()),0){
}
int TerrainPage::getNumberOfSegmentsPerAxis() const
{
return (getPageSize() - 1) / 64;
}
int TerrainPage::getVerticeCount() const
{
return (getPageSize() * getPageSize());
}
TerrainPage::TerrainPage(const TerrainIndex& index, int pageSize, ICompilerTechniqueProvider& compilerTechniqueProvider) :
mIndex(index), mPageSize(pageSize), mPosition(index.first, index.second), mTerrainSurface(new TerrainPageSurface(*this, compilerTechniqueProvider)), mExtent(WFMath::Point<2>(mPosition.x() * (getPageSize() - 1), (mPosition.y() - 1) * (getPageSize() - 1)), WFMath::Point<2>((mPosition.x() + 1) * (getPageSize() - 1), (mPosition.y()) * (getPageSize() - 1)))
{
S_LOG_VERBOSE("Creating TerrainPage at position " << index.first << ":" << index.second);
}
char* MemoryMapping::map(char* buffer,
int buffersize,
FILE* file,
int offset)
{
#ifdef _MSC_VER
HANDLE filehandle = (HANDLE) _get_osfhandle(FILENO(file));
HANDLE filemapping = ::CreateFileMappingA(
filehandle,
&MMAP_SECURITY_ATTRIBUTES,
PAGE_READONLY | SEC_COMMIT,
0,
0,
0);
if (0 == filemapping) return MAP_FAILED;
DWORD alignedoffset = (offset / getPageSize()) * getPageSize();
DWORD alignment = offset - alignedoffset;
LPVOID mappedmemory = ::MapViewOfFile(
filemapping,
FILE_MAP_READ,
0,
alignedoffset,
0);
::CloseHandle(filemapping);
if (0 != mappedmemory)
{
return ((char*) mappedmemory) + alignment;
}
else
{
return 0;
}
#else
int filehandle = FILENO(file);
int protection = PROT_READ;
int flags = MAP_PRIVATE;
int alignedoffset = (offset / getpagesize()) * getpagesize();
int alignment = offset - alignedoffset;
int alignedlength = ((buffersize / getpagesize()) + 1) * getpagesize();
char* result = (char*) ::mmap(
(void*) buffer,
alignedlength,
protection,
flags,
filehandle,
alignedoffset);
return ((char*) -1) == result ? 0 : result + alignment;
#endif
}
void julia_init(char *imageFile)
{
jl_page_size = getPageSize();
jl_find_stack_bottom();
jl_dl_handle = jl_load_dynamic_library(NULL);
#ifdef __WIN32__
uv_dlopen("ntdll.dll",jl_ntdll_handle); //bypass julia's pathchecking for system dlls
uv_dlopen("Kernel32.dll",jl_kernel32_handle);
uv_dlopen("msvcrt.dll",jl_crtdll_handle);
uv_dlopen("Ws2_32.dll",jl_winsock_handle);
_jl_exe_handle.handle = GetModuleHandleA(NULL);
#endif
jl_io_loop = uv_default_loop(); //this loop will internal events (spawining process etc.)
init_stdio();
#if defined(__linux__)
int ncores = jl_cpu_cores();
if (ncores > 1) {
cpu_set_t cpumask;
CPU_ZERO(&cpumask);
for(int i=0; i < ncores; i++) {
CPU_SET(i, &cpumask);
}
sched_setaffinity(0, sizeof(cpu_set_t), &cpumask);
}
#endif
#ifdef JL_GC_MARKSWEEP
jl_gc_init();
jl_gc_disable();
#endif
jl_init_frontend();
jl_init_types();
jl_init_tasks(jl_stack_lo, jl_stack_hi-jl_stack_lo);
jl_init_codegen();
jl_an_empty_cell = (jl_value_t*)jl_alloc_cell_1d(0);
jl_init_serializer();
if (!imageFile) {
jl_main_module = jl_new_module(jl_symbol("Main"));
jl_main_module->parent = jl_main_module;
jl_core_module = jl_new_module(jl_symbol("Core"));
jl_core_module->parent = jl_main_module;
jl_set_const(jl_main_module, jl_symbol("Core"),
(jl_value_t*)jl_core_module);
jl_module_using(jl_main_module, jl_core_module);
jl_current_module = jl_core_module;
jl_init_intrinsic_functions();
jl_init_primitives();
jl_load("boot.jl");
jl_get_builtin_hooks();
jl_boot_file_loaded = 1;
jl_init_box_caches();
}
if (imageFile) {
JL_TRY {
jl_restore_system_image(imageFile);
}
JL_CATCH {
JL_PRINTF(JL_STDERR, "error during init:\n");
jl_show(jl_stderr_obj(), jl_exception_in_transit);
JL_PRINTF(JL_STDOUT, "\n");
jl_exit(1);
}
}
// set module field of primitive types
int i;
void **table = jl_core_module->bindings.table;
for(i=1; i < jl_core_module->bindings.size; i+=2) {
if (table[i] != HT_NOTFOUND) {
jl_binding_t *b = (jl_binding_t*)table[i];
if (b->value && jl_is_some_tag_type(b->value)) {
jl_tag_type_t *tt = (jl_tag_type_t*)b->value;
tt->name->module = jl_core_module;
}
}
}
// the Main module is the one which is always open, and set as the
// current module for bare (non-module-wrapped) toplevel expressions.
// it does "using Base" if Base is available.
if (jl_base_module != NULL) {
jl_add_standard_imports(jl_main_module);
}
// eval() uses Main by default, so Main.eval === Core.eval
jl_module_import(jl_main_module, jl_core_module, jl_symbol("eval"));
jl_current_module = jl_main_module;
#ifndef __WIN32__
struct sigaction actf;
memset(&actf, 0, sizeof(struct sigaction));
sigemptyset(&actf.sa_mask);
actf.sa_handler = fpe_handler;
actf.sa_flags = 0;
if (sigaction(SIGFPE, &actf, NULL) < 0) {
JL_PRINTF(JL_STDERR, "sigaction: %s\n", strerror(errno));
jl_exit(1);
}
stack_t ss;
ss.ss_flags = 0;
ss.ss_size = SIGSTKSZ;
ss.ss_sp = malloc(ss.ss_size);
if (sigaltstack(&ss, NULL) < 0) {
JL_PRINTF(JL_STDERR, "sigaltstack: %s\n", strerror(errno));
jl_exit(1);
}
struct sigaction act;
memset(&act, 0, sizeof(struct sigaction));
sigemptyset(&act.sa_mask);
act.sa_sigaction = segv_handler;
act.sa_flags = SA_ONSTACK | SA_SIGINFO;
if (sigaction(SIGSEGV, &act, NULL) < 0) {
JL_PRINTF(JL_STDERR, "sigaction: %s\n", strerror(errno));
jl_exit(1);
}
#else
if (signal(SIGFPE, (void (__cdecl *)(int))fpe_handler) == SIG_ERR) {
JL_PRINTF(JL_STDERR, "Couldn't set SIGFPE\n");
jl_exit(1);
}
#endif
#ifdef JL_GC_MARKSWEEP
jl_gc_enable();
#endif
}