| //===- 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; |
| case kAsanStackUseAfterScopeMagic: |
| os << "S"; |
| break; |
| default: os << (unsigned)ShadowBytes[i]; |
| } |
| } |
| return os.str(); |
| } |
| |
| // Use macro to preserve line information in EXPECT_EQ output. |
| #define TEST_LAYOUT(V, Granularity, MinHeaderSize, ExpectedDescr, \ |
| ExpectedShadow, ExpectedShadowAfterScope) \ |
| { \ |
| SmallVector<ASanStackVariableDescription, 10> Vars = V; \ |
| ASanStackFrameLayout L = \ |
| ComputeASanStackFrameLayout(Vars, Granularity, MinHeaderSize); \ |
| EXPECT_STREQ(ExpectedDescr, \ |
| ComputeASanStackFrameDescription(Vars).c_str()); \ |
| EXPECT_EQ(ExpectedShadow, ShadowBytesToString(GetShadowBytes(Vars, L))); \ |
| EXPECT_EQ(ExpectedShadowAfterScope, \ |
| ShadowBytesToString(GetShadowBytesAfterScope(Vars, L))); \ |
| } |
| |
| TEST(ASanStackFrameLayout, Test) { |
| #define VAR(name, size, lifetime, alignment, line) \ |
| ASanStackVariableDescription name##size##_##alignment = { \ |
| #name #size "_" #alignment, \ |
| size, \ |
| lifetime, \ |
| alignment, \ |
| 0, \ |
| 0, \ |
| line, \ |
| } |
| |
| VAR(a, 1, 0, 1, 0); |
| VAR(p, 1, 0, 32, 15); |
| VAR(p, 1, 0, 256, 2700); |
| VAR(a, 2, 0, 1, 0); |
| VAR(a, 3, 0, 1, 0); |
| VAR(a, 4, 0, 1, 0); |
| VAR(a, 7, 0, 1, 0); |
| VAR(a, 8, 8, 1, 0); |
| VAR(a, 9, 0, 1, 0); |
| VAR(a, 16, 16, 1, 0); |
| VAR(a, 41, 9, 1, 7); |
| VAR(a, 105, 103, 1, 0); |
| VAR(a, 200, 97, 1, 0); |
| |
| TEST_LAYOUT({a1_1}, 8, 16, "1 16 1 4 a1_1", "LL1R", "LL1R"); |
| TEST_LAYOUT({a1_1}, 16, 16, "1 16 1 4 a1_1", "L1R", "L1R"); |
| TEST_LAYOUT({a1_1}, 32, 32, "1 32 1 4 a1_1", "L1R", "L1R"); |
| TEST_LAYOUT({a1_1}, 64, 64, "1 64 1 4 a1_1", "L1R", "L1R"); |
| TEST_LAYOUT({p1_32}, 8, 32, "1 32 1 8 p1_32:15", "LLLL1RRR", "LLLL1RRR"); |
| TEST_LAYOUT({p1_32}, 8, 64, "1 64 1 8 p1_32:15", "LLLLLLLL1RRRRRRR", |
| "LLLLLLLL1RRRRRRR"); |
| |
| TEST_LAYOUT({a1_1}, 8, 32, "1 32 1 4 a1_1", "LLLL1RRR", "LLLL1RRR"); |
| TEST_LAYOUT({a2_1}, 8, 32, "1 32 2 4 a2_1", "LLLL2RRR", "LLLL2RRR"); |
| TEST_LAYOUT({a3_1}, 8, 32, "1 32 3 4 a3_1", "LLLL3RRR", "LLLL3RRR"); |
| TEST_LAYOUT({a4_1}, 8, 32, "1 32 4 4 a4_1", "LLLL4RRR", "LLLL4RRR"); |
| TEST_LAYOUT({a7_1}, 8, 32, "1 32 7 4 a7_1", "LLLL7RRR", "LLLL7RRR"); |
| TEST_LAYOUT({a8_1}, 8, 32, "1 32 8 4 a8_1", "LLLL0RRR", "LLLLSRRR"); |
| TEST_LAYOUT({a9_1}, 8, 32, "1 32 9 4 a9_1", "LLLL01RR", "LLLL01RR"); |
| TEST_LAYOUT({a16_1}, 8, 32, "1 32 16 5 a16_1", "LLLL00RR", "LLLLSSRR"); |
| TEST_LAYOUT({p1_256}, 8, 32, "1 256 1 11 p1_256:2700", |
| "LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL1RRR", |
| "LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL1RRR"); |
| TEST_LAYOUT({a41_1}, 8, 32, "1 32 41 7 a41_1:7", "LLLL000001RRRRRR", |
| "LLLLSS0001RRRRRR"); |
| TEST_LAYOUT({a105_1}, 8, 32, "1 32 105 6 a105_1", "LLLL00000000000001RRRRRR", |
| "LLLLSSSSSSSSSSSSS1RRRRRR"); |
| |
| { |
| SmallVector<ASanStackVariableDescription, 10> t = {a1_1, p1_256}; |
| TEST_LAYOUT(t, 8, 32, "2 256 1 11 p1_256:2700 272 1 4 a1_1", |
| "LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL1M1R", |
| "LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL1M1R"); |
| } |
| |
| { |
| SmallVector<ASanStackVariableDescription, 10> t = {a1_1, a16_1, a41_1}; |
| TEST_LAYOUT(t, 8, 32, "3 32 1 4 a1_1 48 16 5 a16_1 80 41 7 a41_1:7", |
| "LLLL1M00MM000001RRRR", "LLLL1MSSMMSS0001RRRR"); |
| } |
| |
| TEST_LAYOUT({a2_1}, 32, 32, "1 32 2 4 a2_1", "L2R", "L2R"); |
| TEST_LAYOUT({a9_1}, 32, 32, "1 32 9 4 a9_1", "L9R", "L9R"); |
| TEST_LAYOUT({a16_1}, 32, 32, "1 32 16 5 a16_1", "L16R", "LSR"); |
| TEST_LAYOUT({p1_256}, 32, 32, "1 256 1 11 p1_256:2700", |
| "LLLLLLLL1R", "LLLLLLLL1R"); |
| TEST_LAYOUT({a41_1}, 32, 32, "1 32 41 7 a41_1:7", "L09R", |
| "LS9R"); |
| TEST_LAYOUT({a105_1}, 32, 32, "1 32 105 6 a105_1", "L0009R", |
| "LSSSSR"); |
| TEST_LAYOUT({a200_1}, 32, 32, "1 32 200 6 a200_1", "L0000008RR", |
| "LSSSS008RR"); |
| |
| { |
| SmallVector<ASanStackVariableDescription, 10> t = {a1_1, p1_256}; |
| TEST_LAYOUT(t, 32, 32, "2 256 1 11 p1_256:2700 320 1 4 a1_1", |
| "LLLLLLLL1M1R", "LLLLLLLL1M1R"); |
| } |
| |
| { |
| SmallVector<ASanStackVariableDescription, 10> t = {a1_1, a16_1, a41_1}; |
| TEST_LAYOUT(t, 32, 32, "3 32 1 4 a1_1 96 16 5 a16_1 160 41 7 a41_1:7", |
| "L1M16M09R", "L1MSMS9R"); |
| } |
| #undef VAR |
| #undef TEST_LAYOUT |
| } |