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8253457: Remove unimplemented register stack functions

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Reviewed-by: iklam, dholmes, shade
This commit is contained in:
Coleen Phillimore 2020-09-23 11:29:58 +00:00
parent e4d0e5af4d
commit b8ea80af33
12 changed files with 10 additions and 175 deletions
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18
src/hotspot/share/runtime/thread.cpp
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@ -1807,13 +1807,6 @@ bool JavaThread::reguard_stack(address cur_sp) {
return true; // Stack already guarded or guard pages not needed.
}
if (register_stack_overflow()) {
// For those architectures which have separate register and
// memory stacks, we must check the register stack to see if
// it has overflowed.
return false;
}
// Java code never executes within the yellow zone: the latter is only
// there to provoke an exception during stack banging. If java code
// is executing there, either StackShadowPages should be larger, or
@ -1942,13 +1935,6 @@ void JavaThread::run() {
// initialize thread-local alloc buffer related fields
this->initialize_tlab();
// Used to test validity of stack trace backs.
// This can't be moved into pre_run() else we invalidate
// the requirement that thread_main_inner is lower on
// the stack. Consequently all the initialization logic
// stays here in run() rather than pre_run().
this->record_base_of_stack_pointer();
this->create_stack_guard_pages();
this->cache_global_variables();
@ -2796,7 +2782,6 @@ void JavaThread::enable_stack_reserved_zone() {
} else {
warning("Attempt to guard stack reserved zone failed.");
}
enable_register_stack_guard();
}
void JavaThread::disable_stack_reserved_zone() {
@ -2814,7 +2799,6 @@ void JavaThread::disable_stack_reserved_zone() {
} else {
warning("Attempt to unguard stack reserved zone failed.");
}
disable_register_stack_guard();
}
void JavaThread::enable_stack_yellow_reserved_zone() {
@ -2833,7 +2817,6 @@ void JavaThread::enable_stack_yellow_reserved_zone() {
} else {
warning("Attempt to guard stack yellow zone failed.");
}
enable_register_stack_guard();
}
void JavaThread::disable_stack_yellow_reserved_zone() {
@ -2852,7 +2835,6 @@ void JavaThread::disable_stack_yellow_reserved_zone() {
} else {
warning("Attempt to unguard stack yellow zone failed.");
}
disable_register_stack_guard();
}
void JavaThread::enable_stack_red_zone() {