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[lldb] Add a test for lea_rsp_pattern_p to x86 unwinder (NFC) #94852

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Merged
merged 1 commit into from
Jun 11, 2024
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[lldb] Add a test for lea_rsp_pattern_p to x86 unwinder (NFC) #94852

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24 changes: 23 additions & 1 deletion lldb/unittests/UnwindAssembly/x86/Testx86AssemblyInspectionEngine.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1731,7 +1731,29 @@ TEST_F(Testx86AssemblyInspectionEngine, TestAddESP) {
EXPECT_EQ(4 - 16, row_sp->GetCFAValue().GetOffset());
}

// FIXME add test for lea_rsp_pattern_p
TEST_F(Testx86AssemblyInspectionEngine, TestLEA_RSP_Pattern) {
UnwindPlan::Row::RegisterLocation regloc;
UnwindPlan::RowSP row_sp;
AddressRange sample_range;
UnwindPlan unwind_plan(eRegisterKindLLDB);
std::unique_ptr<x86AssemblyInspectionEngine> engine = Getx86_64Inspector();

uint8_t data[] = {
0x8d, 0x64, 0x24, 0x10, // lea rsp, [rsp + 0x10]
0x90 // nop
};

sample_range = AddressRange(0x1000, sizeof(data));

EXPECT_TRUE(engine->GetNonCallSiteUnwindPlanFromAssembly(
data, sizeof(data), sample_range, unwind_plan));

row_sp = unwind_plan.GetRowForFunctionOffset(0);
EXPECT_EQ(0ull, row_sp->GetOffset());
EXPECT_TRUE(row_sp->GetCFAValue().GetRegisterNumber() == k_rsp);
EXPECT_TRUE(row_sp->GetCFAValue().IsRegisterPlusOffset() == true);
EXPECT_EQ(8, row_sp->GetCFAValue().GetOffset());
}

TEST_F(Testx86AssemblyInspectionEngine, TestPopRBX) {
UnwindPlan::Row::RegisterLocation regloc;
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