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8328671: Mark allocate_new_tlab and unsafe_max_tlab_alloc of CollectedHeap as pure virtual

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Reviewed-by: stefank, tschatzl
This commit is contained in:
Guoxiong Li 2024-03-22 08:43:45 +00:00
parent 940d1965f8
commit e669d14d47
2 changed files with 2 additions and 12 deletions
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7
src/hotspot/share/gc/shared/collectedHeap.cpp
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@ -518,13 +518,6 @@ void CollectedHeap::fill_with_dummy_object(HeapWord* start, HeapWord* end, bool
CollectedHeap::fill_with_object(start, end, zap);
}
HeapWord* CollectedHeap::allocate_new_tlab(size_t min_size,
size_t requested_size,
size_t* actual_size) {
guarantee(false, "thread-local allocation buffers not supported");
return nullptr;
}
void CollectedHeap::ensure_parsability(bool retire_tlabs) {
assert(SafepointSynchronize::is_at_safepoint() || !is_init_completed(),
"Should only be called at a safepoint or at start-up");

7
src/hotspot/share/gc/shared/collectedHeap.hpp
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@ -149,7 +149,7 @@ class CollectedHeap : public CHeapObj<mtGC> {
// returned in actual_size.
virtual HeapWord* allocate_new_tlab(size_t min_size,
size_t requested_size,
size_t* actual_size);
size_t* actual_size) = 0;
// Reinitialize tlabs before resuming mutators.
virtual void resize_all_tlabs();
@ -345,10 +345,7 @@ protected:
// An estimate of the maximum allocation that could be performed
// for thread-local allocation buffers without triggering any
// collection or expansion activity.
virtual size_t unsafe_max_tlab_alloc(Thread *thr) const {
guarantee(false, "thread-local allocation buffers not supported");
return 0;
}
virtual size_t unsafe_max_tlab_alloc(Thread *thr) const = 0;
// If a GC uses a stack watermark barrier, the stack processing is lazy, concurrent,
// incremental and cooperative. In order for that to work well, mechanisms that stop