diff options
Diffstat (limited to 'unittests')
| -rw-r--r-- | unittests/Transforms/Utils/ASanStackFrameLayoutTest.cpp | 102 | ||||
| -rw-r--r-- | unittests/Transforms/Utils/CMakeLists.txt | 1 |
2 files changed, 103 insertions, 0 deletions
diff --git a/unittests/Transforms/Utils/ASanStackFrameLayoutTest.cpp b/unittests/Transforms/Utils/ASanStackFrameLayoutTest.cpp new file mode 100644 index 0000000000..a7fb5fac2c --- /dev/null +++ b/unittests/Transforms/Utils/ASanStackFrameLayoutTest.cpp @@ -0,0 +1,102 @@ +//===- 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 <sstream> +#include "gtest/gtest.h" + +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 +} diff --git a/unittests/Transforms/Utils/CMakeLists.txt b/unittests/Transforms/Utils/CMakeLists.txt index 0656390cbb..3cff95e84b 100644 --- a/unittests/Transforms/Utils/CMakeLists.txt +++ b/unittests/Transforms/Utils/CMakeLists.txt @@ -3,6 +3,7 @@ set(LLVM_LINK_COMPONENTS ) add_llvm_unittest(UtilsTests + ASanStackFrameLayoutTest.cpp Cloning.cpp IntegerDivision.cpp Local.cpp |