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6792301: StackAlignmentInBytes not honored for compiled native methods

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Fixed the stack misalignment when generate_native_wrapper is called.

Reviewed-by: never, kamg, kvn, phh
This commit is contained in:
Xiaobin Lu 2009-01-13 17:39:03 -08:00
parent 8187896320
commit 74a472983b
2 changed files with 6 additions and 2 deletions
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4
hotspot/src/cpu/x86/vm/sharedRuntime_x86_64.cpp
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@ -39,6 +39,8 @@ RuntimeStub* SharedRuntime::_resolve_opt_virtual_call_blob;
RuntimeStub* SharedRuntime::_resolve_virtual_call_blob;
RuntimeStub* SharedRuntime::_resolve_static_call_blob;
const int StackAlignmentInSlots = StackAlignmentInBytes / VMRegImpl::stack_slot_size;
#define __ masm->
class SimpleRuntimeFrame {
@ -1286,7 +1288,7 @@ nmethod *SharedRuntime::generate_native_wrapper(MacroAssembler *masm,
// Now compute actual number of stack words we need rounding to make
// stack properly aligned.
stack_slots = round_to(stack_slots, 4 * VMRegImpl::slots_per_word);
stack_slots = round_to(stack_slots, StackAlignmentInSlots);
int stack_size = stack_slots * VMRegImpl::stack_slot_size;