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//===-- Testx86AssemblyInspectionEngine.cpp -------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "gtest/gtest.h"
#include "Plugins/UnwindAssembly/x86/x86AssemblyInspectionEngine.h"
#include "lldb/Core/AddressRange.h"
#include "lldb/Symbol/UnwindPlan.h"
#include "lldb/Utility/ArchSpec.h"
#include "llvm/Support/TargetSelect.h"
#include <memory>
#include <vector>
using namespace lldb;
using namespace lldb_private;
class Testx86AssemblyInspectionEngine : public testing::Test {
public:
static void SetUpTestCase();
};
void Testx86AssemblyInspectionEngine::SetUpTestCase() {
llvm::InitializeAllTargets();
llvm::InitializeAllAsmPrinters();
llvm::InitializeAllTargetMCs();
llvm::InitializeAllDisassemblers();
}
// only defining the register names / numbers that the unwinder is actually
// using today
// names should match the constants below. These will be the eRegisterKindLLDB
// register numbers.
const char *x86_64_reg_names[] = {"rax", "rbx", "rcx", "rdx", "rsp", "rbp",
"rsi", "rdi", "r8", "r9", "r10", "r11",
"r12", "r13", "r14", "r15", "rip"};
enum x86_64_regs {
k_rax = 0,
k_rbx = 1,
k_rcx = 2,
k_rdx = 3,
k_rsp = 4,
k_rbp = 5,
k_rsi = 6,
k_rdi = 7,
k_r8 = 8,
k_r9 = 9,
k_r10 = 10,
k_r11 = 11,
k_r12 = 12,
k_r13 = 13,
k_r14 = 14,
k_r15 = 15,
k_rip = 16
};
std::unique_ptr<x86AssemblyInspectionEngine> Getx86_64Inspector() {
ArchSpec arch("x86_64-apple-macosx");
std::unique_ptr<x86AssemblyInspectionEngine> engine(
new x86AssemblyInspectionEngine(arch));
std::vector<x86AssemblyInspectionEngine::lldb_reg_info> lldb_regnums;
int i = 0;
for (const auto &name : x86_64_reg_names) {
x86AssemblyInspectionEngine::lldb_reg_info ri;
ri.name = name;
ri.lldb_regnum = i++;
lldb_regnums.push_back(ri);
}
engine->Initialize(lldb_regnums);
return engine;
}
TEST_F(Testx86AssemblyInspectionEngine, TestSimple64bitFrameFunction) {
std::unique_ptr<x86AssemblyInspectionEngine> engine = Getx86_64Inspector();
// 'int main() { }' compiled for x86_64-apple-macosx with clang
uint8_t data[] = {
0x55, // offset 0 -- pushq %rbp
0x48, 0x89, 0xe5, // offset 1 -- movq %rsp, %rbp
0x31, 0xc0, // offset 4 -- xorl %eax, %eax
0x5d, // offset 6 -- popq %rbp
0xc3 // offset 7 -- retq
};
AddressRange sample_range(0x1000, sizeof(data));
UnwindPlan unwind_plan(eRegisterKindLLDB);
EXPECT_FALSE(engine->GetNonCallSiteUnwindPlanFromAssembly(
data, sizeof(data), sample_range, unwind_plan));
}
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