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Unified Diff: src/ia32/builtins-ia32.cc

Issue 215853005: Check stack limit in ArgumentAdaptorTrampoline. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: rebase Created 6 years, 8 months ago
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Index: src/ia32/builtins-ia32.cc
diff --git a/src/ia32/builtins-ia32.cc b/src/ia32/builtins-ia32.cc
index 785c5fd61c219e1d87555f21c0d084e4f9d3a7a6..61c3f23cb0a14079491cae93ae02e86e858bbc14 100644
--- a/src/ia32/builtins-ia32.cc
+++ b/src/ia32/builtins-ia32.cc
@@ -1252,6 +1252,33 @@ void Builtins::Generate_StringConstructCode(MacroAssembler* masm) {
}
+static void ArgumentsAdaptorStackCheck(MacroAssembler* masm,
+ Label* stack_overflow) {
+ // ----------- S t a t e -------------
+ // -- eax : actual number of arguments
+ // -- ebx : expected number of arguments
+ // -- edi : function (passed through to callee)
+ // -----------------------------------
+ // Check the stack for overflow. We are not trying to catch
+ // interruptions (e.g. debug break and preemption) here, so the "real stack
+ // limit" is checked.
+ ExternalReference real_stack_limit =
+ ExternalReference::address_of_real_stack_limit(masm->isolate());
+ __ mov(edx, Operand::StaticVariable(real_stack_limit));
+ // Make ecx the space we have left. The stack might already be overflowed
+ // here which will cause ecx to become negative.
+ __ mov(ecx, esp);
+ __ sub(ecx, edx);
+ // Make edx the space we need for the array when it is unrolled onto the
+ // stack.
+ __ mov(edx, ebx);
+ __ shl(edx, kPointerSizeLog2);
+ // Check if the arguments will overflow the stack.
+ __ cmp(ecx, edx);
+ __ j(less_equal, stack_overflow); // Signed comparison.
+}
+
+
static void EnterArgumentsAdaptorFrame(MacroAssembler* masm) {
__ push(ebp);
__ mov(ebp, esp);
@@ -1296,6 +1323,9 @@ void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) {
Label invoke, dont_adapt_arguments;
__ IncrementCounter(masm->isolate()->counters()->arguments_adaptors(), 1);
+ Label stack_overflow;
+ ArgumentsAdaptorStackCheck(masm, &stack_overflow);
+
Label enough, too_few;
__ mov(edx, FieldOperand(edi, JSFunction::kCodeEntryOffset));
__ cmp(eax, ebx);
@@ -1370,6 +1400,10 @@ void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) {
// -------------------------------------------
__ bind(&dont_adapt_arguments);
__ jmp(edx);
+
+ __ bind(&stack_overflow);
+ EnterArgumentsAdaptorFrame(masm);
+ __ InvokeBuiltin(Builtins::STACK_OVERFLOW, JUMP_FUNCTION);
Michael Starzinger 2014/04/08 11:58:40 The assumption is that this invocation never retur
ulan 2014/04/08 14:00:56 Done.
}
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