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8220051: Remove global safepoint code

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Reviewed-by: mdoerr, dcubed, eosterlund, bulasevich, coleenp
This commit is contained in:
Robbin Ehn 2020-04-01 14:54:44 +02:00
parent 8d84cf5a3b
commit bf41f548e1
86 changed files with 263 additions and 927 deletions
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21
src/hotspot/os/windows/os_windows.cpp
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@ -56,6 +56,7 @@
#include "runtime/orderAccess.hpp"
#include "runtime/osThread.hpp"
#include "runtime/perfMemory.hpp"
#include "runtime/safepointMechanism.hpp"
#include "runtime/sharedRuntime.hpp"
#include "runtime/statSampler.hpp"
#include "runtime/stubRoutines.hpp"
@ -2531,7 +2532,7 @@ LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) {
// the rest are checked explicitly now.
CodeBlob* cb = CodeCache::find_blob(pc);
if (cb != NULL) {
if (os::is_poll_address(addr)) {
if (SafepointMechanism::is_poll_address(addr)) {
address stub = SharedRuntime::get_poll_stub(pc);
return Handle_Exception(exceptionInfo, stub);
}
@ -4115,24 +4116,6 @@ jint os::init_2(void) {
return JNI_OK;
}
// Mark the polling page as unreadable
void os::make_polling_page_unreadable(void) {
DWORD old_status;
if (!VirtualProtect((char *)_polling_page, os::vm_page_size(),
PAGE_NOACCESS, &old_status)) {
fatal("Could not disable polling page");
}
}
// Mark the polling page as readable
void os::make_polling_page_readable(void) {
DWORD old_status;
if (!VirtualProtect((char *)_polling_page, os::vm_page_size(),
PAGE_READONLY, &old_status)) {
fatal("Could not enable polling page");
}
}
// combine the high and low DWORD into a ULONGLONG
static ULONGLONG make_double_word(DWORD high_word, DWORD low_word) {
ULONGLONG value = high_word;