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src/share/vm/memory/heap.hpp
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rev 13477 : 8166317: InterpreterCodeSize should be computed
Reviewed-by: kvn, coleenp
@@ -145,10 +145,16 @@
bool expand_by(size_t size); // expands committed memory by size
// Memory allocation
void* allocate (size_t size); // Allocate 'size' bytes in the code cache or return NULL
void deallocate(void* p); // Deallocate memory
+ // Free the tail of segments allocated by the last call to 'allocate()' which exceed 'used_size'.
+ // ATTENTION: this is only safe to use if there was no other call to 'allocate()' after
+ // 'p' was allocated. Only intended for freeing memory which would be otherwise
+ // wasted after the interpreter generation because we don't know the interpreter size
+ // beforehand and we also can't easily relocate the interpreter to a new location.
+ void deallocate_tail(void* p, size_t used_size);
// Attributes
char* low_boundary() const { return _memory.low_boundary(); }
char* high() const { return _memory.high(); }
char* high_boundary() const { return _memory.high_boundary(); }
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