103 lines
3.9 KiB
C++
103 lines
3.9 KiB
C++
//===- ASanStackFrameLayoutTest.cpp - Tests for ComputeASanStackFrameLayout===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
#include "llvm/Transforms/Utils/ASanStackFrameLayout.h"
|
|
#include "llvm/ADT/ArrayRef.h"
|
|
#include "gtest/gtest.h"
|
|
#include <sstream>
|
|
|
|
using namespace llvm;
|
|
|
|
static std::string
|
|
ShadowBytesToString(ArrayRef<uint8_t> ShadowBytes) {
|
|
std::ostringstream os;
|
|
for (size_t i = 0, n = ShadowBytes.size(); i < n; i++) {
|
|
switch (ShadowBytes[i]) {
|
|
case kAsanStackLeftRedzoneMagic: os << "L"; break;
|
|
case kAsanStackRightRedzoneMagic: os << "R"; break;
|
|
case kAsanStackMidRedzoneMagic: os << "M"; break;
|
|
default: os << (unsigned)ShadowBytes[i];
|
|
}
|
|
}
|
|
return os.str();
|
|
}
|
|
|
|
static void TestLayout(SmallVector<ASanStackVariableDescription, 10> Vars,
|
|
size_t Granularity, size_t MinHeaderSize,
|
|
const std::string &ExpectedDescr,
|
|
const std::string &ExpectedShadow) {
|
|
ASanStackFrameLayout L;
|
|
ComputeASanStackFrameLayout(Vars, Granularity, MinHeaderSize, &L);
|
|
EXPECT_EQ(ExpectedDescr, L.DescriptionString);
|
|
EXPECT_EQ(ExpectedShadow, ShadowBytesToString(L.ShadowBytes));
|
|
}
|
|
|
|
TEST(ASanStackFrameLayout, Test) {
|
|
#define VEC1(a) SmallVector<ASanStackVariableDescription, 10>(1, a)
|
|
#define VEC(a) \
|
|
SmallVector<ASanStackVariableDescription, 10>(a, a + sizeof(a) / sizeof(a[0]))
|
|
|
|
#define VAR(name, size, alignment) \
|
|
ASanStackVariableDescription name##size##_##alignment = { \
|
|
#name #size "_" #alignment, \
|
|
size, \
|
|
alignment, \
|
|
0, \
|
|
0 \
|
|
}
|
|
|
|
VAR(a, 1, 1);
|
|
VAR(p, 1, 32);
|
|
VAR(p, 1, 256);
|
|
VAR(a, 2, 1);
|
|
VAR(a, 3, 1);
|
|
VAR(a, 4, 1);
|
|
VAR(a, 7, 1);
|
|
VAR(a, 8, 1);
|
|
VAR(a, 9, 1);
|
|
VAR(a, 16, 1);
|
|
VAR(a, 41, 1);
|
|
VAR(a, 105, 1);
|
|
|
|
TestLayout(VEC1(a1_1), 8, 16, "1 16 1 4 a1_1", "LL1R");
|
|
TestLayout(VEC1(a1_1), 64, 64, "1 64 1 4 a1_1", "L1");
|
|
TestLayout(VEC1(p1_32), 8, 32, "1 32 1 5 p1_32", "LLLL1RRR");
|
|
TestLayout(VEC1(p1_32), 8, 64, "1 64 1 5 p1_32", "LLLLLLLL1RRRRRRR");
|
|
|
|
TestLayout(VEC1(a1_1), 8, 32, "1 32 1 4 a1_1", "LLLL1RRR");
|
|
TestLayout(VEC1(a2_1), 8, 32, "1 32 2 4 a2_1", "LLLL2RRR");
|
|
TestLayout(VEC1(a3_1), 8, 32, "1 32 3 4 a3_1", "LLLL3RRR");
|
|
TestLayout(VEC1(a4_1), 8, 32, "1 32 4 4 a4_1", "LLLL4RRR");
|
|
TestLayout(VEC1(a7_1), 8, 32, "1 32 7 4 a7_1", "LLLL7RRR");
|
|
TestLayout(VEC1(a8_1), 8, 32, "1 32 8 4 a8_1", "LLLL0RRR");
|
|
TestLayout(VEC1(a9_1), 8, 32, "1 32 9 4 a9_1", "LLLL01RR");
|
|
TestLayout(VEC1(a16_1), 8, 32, "1 32 16 5 a16_1", "LLLL00RR");
|
|
TestLayout(VEC1(p1_256), 8, 32, "1 256 1 6 p1_256",
|
|
"LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL1RRR");
|
|
TestLayout(VEC1(a41_1), 8, 32, "1 32 41 5 a41_1", "LLLL000001RRRRRR");
|
|
TestLayout(VEC1(a105_1), 8, 32, "1 32 105 6 a105_1",
|
|
"LLLL00000000000001RRRRRR");
|
|
|
|
{
|
|
ASanStackVariableDescription t[] = {a1_1, p1_256};
|
|
TestLayout(VEC(t), 8, 32,
|
|
"2 256 1 6 p1_256 272 1 4 a1_1",
|
|
"LLLLLLLL" "LLLLLLLL" "LLLLLLLL" "LLLLLLLL" "1M1R");
|
|
}
|
|
|
|
{
|
|
ASanStackVariableDescription t[] = {a1_1, a16_1, a41_1};
|
|
TestLayout(VEC(t), 8, 32,
|
|
"3 32 1 4 a1_1 48 16 5 a16_1 80 41 5 a41_1",
|
|
"LLLL" "1M00" "MM00" "0001" "RRRR");
|
|
}
|
|
#undef VEC1
|
|
#undef VEC
|
|
#undef VAR
|
|
}
|