#include "config.h"
#include "JSCPtrTag.h"
#include "JSCConfig.h"
#if ENABLE(JIT_CAGE)
#include <machine/cpu_capabilities.h>
#include <sys/mman.h>
#include <sys/types.h>
#endif
namespace JSC {
#if CPU(ARM64E) && ENABLE(PTRTAG_DEBUGGING)
static const char* tagForPtr(const void* ptr)
{
#define RETURN_NAME_IF_TAG_MATCHES(tag, calleeType, callerType) \
if (callerType != PtrTagCallerType::JIT || calleeType != PtrTagCalleeType::Native) { \
if (ptr == WTF::tagCodePtrImpl<WTF::PtrTagAction::NoAssert, JSC::tag>(removeCodePtrTag(ptr))) \
return #tag; \
}
FOR_EACH_JSC_PTRTAG(RETURN_NAME_IF_TAG_MATCHES)
#undef RETURN_NAME_IF_TAG_MATCHES
return nullptr; }
static const char* ptrTagName(PtrTag tag)
{
#define RETURN_PTRTAG_NAME(_tagName, calleeType, callerType) case _tagName: return #_tagName;
switch (static_cast<unsigned>(tag)) {
FOR_EACH_JSC_PTRTAG(RETURN_PTRTAG_NAME)
}
#undef RETURN_PTRTAG_NAME
return nullptr; }
void initializePtrTagLookup()
{
WTF::PtrTagLookup& lookup = g_jscConfig.ptrTagLookupRecord;
lookup.initialize(tagForPtr, ptrTagName);
WTF::registerPtrTagLookup(&lookup);
}
#endif // CPU(ARM64E) && ENABLE(PTRTAG_DEBUGGING)
#if CPU(ARM64E)
PtrTagCallerType callerType(PtrTag tag)
{
#define RETURN_PTRTAG_TYPE(_tagName, calleeType, callerType) case _tagName: return callerType;
switch (tag) {
FOR_EACH_JSC_PTRTAG(RETURN_PTRTAG_TYPE)
default:
return PtrTagCallerType::Native;
}
#undef RETURN_PTRTAG_TYPE
return PtrTagCallerType::Native;
}
PtrTagCalleeType calleeType(PtrTag tag)
{
#define RETURN_PTRTAG_TYPE(_tagName, calleeType, callerType) case _tagName: return calleeType;
switch (tag) {
FOR_EACH_JSC_PTRTAG(RETURN_PTRTAG_TYPE)
default:
return PtrTagCalleeType::Native;
}
#undef RETURN_PTRTAG_TYPE
return PtrTagCalleeType::Native;
}
#endif
}