Signed-off-by: Avi Kivity <[email protected]>
---
x86/emulator.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/x86/emulator.c b/x86/emulator.c
index a18ba27..9e76de8 100644
--- a/x86/emulator.c
+++ b/x86/emulator.c
@@ -213,7 +213,7 @@ void test_push(void *mem)
void test_pop(void *mem)
{
- unsigned long tmp, tmp3;
+ unsigned long tmp, tmp3, rsp, rbp;
unsigned long *stack_top = mem + 4096;
unsigned long memw = 0x123456789abcdeful;
static unsigned long tmp2;
@@ -267,6 +267,19 @@ void test_pop(void *mem)
: [tmp]"=&r"(tmp), [tmp3]"=&r"(tmp3) :
[stack_top]"r"(stack_top-1)
: "memory");
report("leave", tmp == (ulong)stack_top && tmp3 == 0x778899);
+
+ rbp = 0xaa55aa55bb66bb66ULL;
+ rsp = (unsigned long)stack_top;
+ asm volatile("xchg %%rsp, %[rsp] \n\t"
+ "xchg %%rbp, %[rbp] \n\t"
+ "enter $0x1238, $0 \n\t"
+ "xchg %%rsp, %[rsp] \n\t"
+ "xchg %%rbp, %[rbp]"
+ : [rsp]"+a"(rsp), [rbp]"+b"(rbp) : : "memory");
+ report("enter",
+ rsp == (unsigned long)stack_top - 8 - 0x1238
+ && rbp == (unsigned long)stack_top - 8
+ && stack_top[-1] == 0xaa55aa55bb66bb66ULL);
}
void test_ljmp(void *mem)
--
1.7.11
--
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