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diff src/os_cpu/linux_x86/vm/os_linux_x86.cpp @ 5903:da4be62fb889

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7147740: add assertions to check stack alignment on VM entry from generated code (x64) Summary: check stack alignment on VM entry on x64. Reviewed-by: kvn, never
author roland
date Mon, 27 Feb 2012 09:17:44 +0100
parents 1d1603768966
children 957c266d8bc5 716e6ef4482a
line wrap: on
line diff
--- a/src/os_cpu/linux_x86/vm/os_linux_x86.cpp	Fri Feb 24 12:33:31 2012 -0800
+++ b/src/os_cpu/linux_x86/vm/os_linux_x86.cpp	Mon Feb 27 09:17:44 2012 +0100
@@ -862,3 +862,11 @@
                       : "r" (fpu_cntrl) : "memory");
 #endif // !AMD64
 }
+
+#ifndef PRODUCT
+void os::verify_stack_alignment() {
+#ifdef AMD64
+  assert(((intptr_t)os::current_stack_pointer() & (StackAlignmentInBytes-1)) == 0, "incorrect stack alignment");
+#endif
+}
+#endif