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6950178: Zero stack improvements

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Moves the logic for determining the size of the Zero stack into the ZeroStack class.

Reviewed-by: twisti
This commit is contained in:
Gary Benson 2010-05-06 02:09:18 -07:00 • committed by Christian Thalinger
parent 070ea7c310
commit 4d6c5d6fef
5 changed files with 24 additions and 10 deletions
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5
hotspot/src/cpu/zero/vm/stubGenerator_zero.cpp
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@ -51,10 +51,7 @@ class StubGenerator: public StubCodeGenerator {
// Set up the stack if necessary
bool stack_needs_teardown = false;
if (stack->needs_setup()) {
size_t stack_used = thread->stack_base() - (address) &stack_used;
size_t stack_free = thread->stack_size() - stack_used;
size_t zero_stack_size = align_size_down(stack_free / 2, wordSize);
size_t zero_stack_size = stack->suggest_size(thread);
stack->setup(alloca(zero_stack_size), zero_stack_size);
stack_needs_teardown = true;
}