llvm/unittests/Object/ELFTest.cpp

   1 //===- ELFTest.cpp - Tests for ELF.cpp ------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "llvm/Object/ELF.h"
  10 #include "llvm/Testing/Support/Error.h"
  11 #include "gtest/gtest.h"
  12
  13 using namespace llvm;
  14 using namespace llvm::object;
  15 using namespace llvm::ELF;
  16
  17 TEST(ELFTest, getELFRelocationTypeNameForVE) {
  18   EXPECT_EQ("R_VE_NONE", getELFRelocationTypeName(EM_VE, R_VE_NONE));
  19   EXPECT_EQ("R_VE_REFLONG", getELFRelocationTypeName(EM_VE, R_VE_REFLONG));
  20   EXPECT_EQ("R_VE_REFQUAD", getELFRelocationTypeName(EM_VE, R_VE_REFQUAD));
  21   EXPECT_EQ("R_VE_SREL32", getELFRelocationTypeName(EM_VE, R_VE_SREL32));
  22   EXPECT_EQ("R_VE_HI32", getELFRelocationTypeName(EM_VE, R_VE_HI32));
  23   EXPECT_EQ("R_VE_LO32", getELFRelocationTypeName(EM_VE, R_VE_LO32));
  24   EXPECT_EQ("R_VE_PC_HI32", getELFRelocationTypeName(EM_VE, R_VE_PC_HI32));
  25   EXPECT_EQ("R_VE_PC_LO32", getELFRelocationTypeName(EM_VE, R_VE_PC_LO32));
  26   EXPECT_EQ("R_VE_GOT32", getELFRelocationTypeName(EM_VE, R_VE_GOT32));
  27   EXPECT_EQ("R_VE_GOT_HI32", getELFRelocationTypeName(EM_VE, R_VE_GOT_HI32));
  28   EXPECT_EQ("R_VE_GOT_LO32", getELFRelocationTypeName(EM_VE, R_VE_GOT_LO32));
  29   EXPECT_EQ("R_VE_GOTOFF32", getELFRelocationTypeName(EM_VE, R_VE_GOTOFF32));
  30   EXPECT_EQ("R_VE_GOTOFF_HI32",
  31             getELFRelocationTypeName(EM_VE, R_VE_GOTOFF_HI32));
  32   EXPECT_EQ("R_VE_GOTOFF_LO32",
  33             getELFRelocationTypeName(EM_VE, R_VE_GOTOFF_LO32));
  34   EXPECT_EQ("R_VE_PLT32", getELFRelocationTypeName(EM_VE, R_VE_PLT32));
  35   EXPECT_EQ("R_VE_PLT_HI32", getELFRelocationTypeName(EM_VE, R_VE_PLT_HI32));
  36   EXPECT_EQ("R_VE_PLT_LO32", getELFRelocationTypeName(EM_VE, R_VE_PLT_LO32));
  37   EXPECT_EQ("R_VE_RELATIVE", getELFRelocationTypeName(EM_VE, R_VE_RELATIVE));
  38   EXPECT_EQ("R_VE_GLOB_DAT", getELFRelocationTypeName(EM_VE, R_VE_GLOB_DAT));
  39   EXPECT_EQ("R_VE_JUMP_SLOT", getELFRelocationTypeName(EM_VE, R_VE_JUMP_SLOT));
  40   EXPECT_EQ("R_VE_COPY", getELFRelocationTypeName(EM_VE, R_VE_COPY));
  41   EXPECT_EQ("R_VE_DTPMOD64", getELFRelocationTypeName(EM_VE, R_VE_DTPMOD64));
  42   EXPECT_EQ("R_VE_DTPOFF64", getELFRelocationTypeName(EM_VE, R_VE_DTPOFF64));
  43   EXPECT_EQ("R_VE_TLS_GD_HI32",
  44             getELFRelocationTypeName(EM_VE, R_VE_TLS_GD_HI32));
  45   EXPECT_EQ("R_VE_TLS_GD_LO32",
  46             getELFRelocationTypeName(EM_VE, R_VE_TLS_GD_LO32));
  47   EXPECT_EQ("R_VE_TPOFF_HI32",
  48             getELFRelocationTypeName(EM_VE, R_VE_TPOFF_HI32));
  49   EXPECT_EQ("R_VE_TPOFF_LO32",
  50             getELFRelocationTypeName(EM_VE, R_VE_TPOFF_LO32));
  51   EXPECT_EQ("R_VE_CALL_HI32", getELFRelocationTypeName(EM_VE, R_VE_CALL_HI32));
  52   EXPECT_EQ("R_VE_CALL_LO32", getELFRelocationTypeName(EM_VE, R_VE_CALL_LO32));
  53 }
  54
  55 TEST(ELFTest, getELFRelocationTypeNameForLoongArch) {
  56   EXPECT_EQ("R_LARCH_NONE",
  57             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_NONE));
  58   EXPECT_EQ("R_LARCH_32", getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_32));
  59   EXPECT_EQ("R_LARCH_64", getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_64));
  60   EXPECT_EQ("R_LARCH_RELATIVE",
  61             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_RELATIVE));
  62   EXPECT_EQ("R_LARCH_COPY",
  63             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_COPY));
  64   EXPECT_EQ("R_LARCH_JUMP_SLOT",
  65             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_JUMP_SLOT));
  66   EXPECT_EQ("R_LARCH_TLS_DTPMOD32",
  67             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_TLS_DTPMOD32));
  68   EXPECT_EQ("R_LARCH_TLS_DTPMOD64",
  69             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_TLS_DTPMOD64));
  70   EXPECT_EQ("R_LARCH_TLS_DTPREL32",
  71             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_TLS_DTPREL32));
  72   EXPECT_EQ("R_LARCH_TLS_DTPREL64",
  73             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_TLS_DTPREL64));
  74   EXPECT_EQ("R_LARCH_TLS_TPREL32",
  75             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_TLS_TPREL32));
  76   EXPECT_EQ("R_LARCH_TLS_TPREL64",
  77             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_TLS_TPREL64));
  78   EXPECT_EQ("R_LARCH_IRELATIVE",
  79             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_IRELATIVE));
  80
  81   EXPECT_EQ("R_LARCH_MARK_LA",
  82             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_MARK_LA));
  83   EXPECT_EQ("R_LARCH_MARK_PCREL",
  84             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_MARK_PCREL));
  85   EXPECT_EQ("R_LARCH_SOP_PUSH_PCREL",
  86             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SOP_PUSH_PCREL));
  87   EXPECT_EQ("R_LARCH_SOP_PUSH_ABSOLUTE",
  88             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SOP_PUSH_ABSOLUTE));
  89   EXPECT_EQ("R_LARCH_SOP_PUSH_DUP",
  90             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SOP_PUSH_DUP));
  91   EXPECT_EQ("R_LARCH_SOP_PUSH_GPREL",
  92             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SOP_PUSH_GPREL));
  93   EXPECT_EQ("R_LARCH_SOP_PUSH_TLS_TPREL",
  94             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SOP_PUSH_TLS_TPREL));
  95   EXPECT_EQ("R_LARCH_SOP_PUSH_TLS_GOT",
  96             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SOP_PUSH_TLS_GOT));
  97   EXPECT_EQ("R_LARCH_SOP_PUSH_TLS_GD",
  98             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SOP_PUSH_TLS_GD));
  99   EXPECT_EQ("R_LARCH_SOP_PUSH_PLT_PCREL",
 100             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SOP_PUSH_PLT_PCREL));
 101   EXPECT_EQ("R_LARCH_SOP_ASSERT",
 102             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SOP_ASSERT));
 103   EXPECT_EQ("R_LARCH_SOP_NOT",
 104             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SOP_NOT));
 105   EXPECT_EQ("R_LARCH_SOP_SUB",
 106             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SOP_SUB));
 107   EXPECT_EQ("R_LARCH_SOP_SL",
 108             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SOP_SL));
 109   EXPECT_EQ("R_LARCH_SOP_SR",
 110             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SOP_SR));
 111   EXPECT_EQ("R_LARCH_SOP_ADD",
 112             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SOP_ADD));
 113   EXPECT_EQ("R_LARCH_SOP_AND",
 114             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SOP_AND));
 115   EXPECT_EQ("R_LARCH_SOP_IF_ELSE",
 116             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SOP_IF_ELSE));
 117   EXPECT_EQ("R_LARCH_SOP_POP_32_S_10_5",
 118             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SOP_POP_32_S_10_5));
 119   EXPECT_EQ("R_LARCH_SOP_POP_32_U_10_12",
 120             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SOP_POP_32_U_10_12));
 121   EXPECT_EQ("R_LARCH_SOP_POP_32_S_10_12",
 122             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SOP_POP_32_S_10_12));
 123   EXPECT_EQ("R_LARCH_SOP_POP_32_S_10_16",
 124             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SOP_POP_32_S_10_16));
 125   EXPECT_EQ(
 126       "R_LARCH_SOP_POP_32_S_10_16_S2",
 127       getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SOP_POP_32_S_10_16_S2));
 128   EXPECT_EQ("R_LARCH_SOP_POP_32_S_5_20",
 129             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SOP_POP_32_S_5_20));
 130   EXPECT_EQ("R_LARCH_SOP_POP_32_S_0_5_10_16_S2",
 131             getELFRelocationTypeName(EM_LOONGARCH,
 132                                      R_LARCH_SOP_POP_32_S_0_5_10_16_S2));
 133   EXPECT_EQ("R_LARCH_SOP_POP_32_S_0_10_10_16_S2",
 134             getELFRelocationTypeName(EM_LOONGARCH,
 135                                      R_LARCH_SOP_POP_32_S_0_10_10_16_S2));
 136   EXPECT_EQ("R_LARCH_SOP_POP_32_U",
 137             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SOP_POP_32_U));
 138   EXPECT_EQ("R_LARCH_ADD8",
 139             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_ADD8));
 140   EXPECT_EQ("R_LARCH_ADD16",
 141             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_ADD16));
 142   EXPECT_EQ("R_LARCH_ADD24",
 143             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_ADD24));
 144   EXPECT_EQ("R_LARCH_ADD32",
 145             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_ADD32));
 146   EXPECT_EQ("R_LARCH_ADD64",
 147             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_ADD64));
 148   EXPECT_EQ("R_LARCH_SUB8",
 149             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SUB8));
 150   EXPECT_EQ("R_LARCH_SUB16",
 151             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SUB16));
 152   EXPECT_EQ("R_LARCH_SUB24",
 153             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SUB24));
 154   EXPECT_EQ("R_LARCH_SUB32",
 155             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SUB32));
 156   EXPECT_EQ("R_LARCH_SUB64",
 157             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SUB64));
 158   EXPECT_EQ("R_LARCH_GNU_VTINHERIT",
 159             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_GNU_VTINHERIT));
 160   EXPECT_EQ("R_LARCH_GNU_VTENTRY",
 161             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_GNU_VTENTRY));
 162   EXPECT_EQ("R_LARCH_B16",
 163             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_B16));
 164   EXPECT_EQ("R_LARCH_B21",
 165             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_B21));
 166   EXPECT_EQ("R_LARCH_B26",
 167             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_B26));
 168   EXPECT_EQ("R_LARCH_ABS_HI20",
 169             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_ABS_HI20));
 170   EXPECT_EQ("R_LARCH_ABS_LO12",
 171             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_ABS_LO12));
 172   EXPECT_EQ("R_LARCH_ABS64_LO20",
 173             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_ABS64_LO20));
 174   EXPECT_EQ("R_LARCH_ABS64_HI12",
 175             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_ABS64_HI12));
 176   EXPECT_EQ("R_LARCH_PCALA_HI20",
 177             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_PCALA_HI20));
 178   EXPECT_EQ("R_LARCH_PCALA_LO12",
 179             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_PCALA_LO12));
 180   EXPECT_EQ("R_LARCH_PCALA64_LO20",
 181             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_PCALA64_LO20));
 182   EXPECT_EQ("R_LARCH_PCALA64_HI12",
 183             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_PCALA64_HI12));
 184   EXPECT_EQ("R_LARCH_GOT_PC_HI20",
 185             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_GOT_PC_HI20));
 186   EXPECT_EQ("R_LARCH_GOT_PC_LO12",
 187             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_GOT_PC_LO12));
 188   EXPECT_EQ("R_LARCH_GOT64_PC_LO20",
 189             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_GOT64_PC_LO20));
 190   EXPECT_EQ("R_LARCH_GOT64_PC_HI12",
 191             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_GOT64_PC_HI12));
 192   EXPECT_EQ("R_LARCH_GOT_HI20",
 193             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_GOT_HI20));
 194   EXPECT_EQ("R_LARCH_GOT_LO12",
 195             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_GOT_LO12));
 196   EXPECT_EQ("R_LARCH_GOT64_LO20",
 197             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_GOT64_LO20));
 198   EXPECT_EQ("R_LARCH_GOT64_HI12",
 199             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_GOT64_HI12));
 200   EXPECT_EQ("R_LARCH_TLS_LE_HI20",
 201             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_TLS_LE_HI20));
 202   EXPECT_EQ("R_LARCH_TLS_LE_LO12",
 203             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_TLS_LE_LO12));
 204   EXPECT_EQ("R_LARCH_TLS_LE64_LO20",
 205             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_TLS_LE64_LO20));
 206   EXPECT_EQ("R_LARCH_TLS_LE64_HI12",
 207             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_TLS_LE64_HI12));
 208   EXPECT_EQ("R_LARCH_TLS_IE_PC_HI20",
 209             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_TLS_IE_PC_HI20));
 210   EXPECT_EQ("R_LARCH_TLS_IE_PC_LO12",
 211             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_TLS_IE_PC_LO12));
 212   EXPECT_EQ("R_LARCH_TLS_IE64_PC_LO20",
 213             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_TLS_IE64_PC_LO20));
 214   EXPECT_EQ("R_LARCH_TLS_IE64_PC_HI12",
 215             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_TLS_IE64_PC_HI12));
 216   EXPECT_EQ("R_LARCH_TLS_IE_HI20",
 217             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_TLS_IE_HI20));
 218   EXPECT_EQ("R_LARCH_TLS_IE_LO12",
 219             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_TLS_IE_LO12));
 220   EXPECT_EQ("R_LARCH_TLS_IE64_LO20",
 221             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_TLS_IE64_LO20));
 222   EXPECT_EQ("R_LARCH_TLS_IE64_HI12",
 223             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_TLS_IE64_HI12));
 224   EXPECT_EQ("R_LARCH_TLS_LD_PC_HI20",
 225             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_TLS_LD_PC_HI20));
 226   EXPECT_EQ("R_LARCH_TLS_LD_HI20",
 227             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_TLS_LD_HI20));
 228   EXPECT_EQ("R_LARCH_TLS_GD_PC_HI20",
 229             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_TLS_GD_PC_HI20));
 230   EXPECT_EQ("R_LARCH_TLS_GD_HI20",
 231             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_TLS_GD_HI20));
 232   EXPECT_EQ("R_LARCH_32_PCREL",
 233             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_32_PCREL));
 234   EXPECT_EQ("R_LARCH_RELAX",
 235             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_RELAX));
 236   EXPECT_EQ("R_LARCH_ALIGN",
 237             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_ALIGN));
 238   EXPECT_EQ("R_LARCH_PCREL20_S2",
 239             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_PCREL20_S2));
 240   EXPECT_EQ("R_LARCH_ADD6",
 241             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_ADD6));
 242   EXPECT_EQ("R_LARCH_SUB6",
 243             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SUB6));
 244   EXPECT_EQ("R_LARCH_ADD_ULEB128",
 245             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_ADD_ULEB128));
 246   EXPECT_EQ("R_LARCH_SUB_ULEB128",
 247             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_SUB_ULEB128));
 248   EXPECT_EQ("R_LARCH_64_PCREL",
 249             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_64_PCREL));
 250   EXPECT_EQ("R_LARCH_CALL36",
 251             getELFRelocationTypeName(EM_LOONGARCH, R_LARCH_CALL36));
 252 }
 253
 254 TEST(ELFTest, getELFRelativeRelocationType) {
 255   EXPECT_EQ(ELF::R_VE_RELATIVE, getELFRelativeRelocationType(EM_VE));
 256   EXPECT_EQ(ELF::R_LARCH_RELATIVE, getELFRelativeRelocationType(EM_LOONGARCH));
 257 }
 258
 259 // This is a test for the DataRegion helper struct, defined in ELF.h header.
 260 TEST(ELFTest, DataRegionTest) {
 261   std::vector<uint8_t> Data = {0, 1, 2};
 262
 263   // Used to check that the operator[] works properly.
 264   auto CheckOperator = [&](DataRegion<uint8_t> &R) {
 265     for (size_t I = 0, E = Data.size(); I != E; ++I) {
 266       Expected<uint8_t> ValOrErr = R[I];
 267       ASSERT_THAT_EXPECTED(ValOrErr, Succeeded());
 268       EXPECT_EQ(*ValOrErr, I);
 269     }
 270   };
 271
 272   // Check we can use the constructor that takes an ArrayRef<T>.
 273   DataRegion<uint8_t> Region(Data);
 274
 275   CheckOperator(Region);
 276   const char *ErrMsg1 =
 277       "the index is greater than or equal to the number of entries (3)";
 278   EXPECT_THAT_ERROR(Region[3].takeError(), FailedWithMessage(ErrMsg1));
 279   EXPECT_THAT_ERROR(Region[4].takeError(), FailedWithMessage(ErrMsg1));
 280
 281   // Check we can use the constructor that takes the data begin and the
 282   // data end pointers.
 283   Region = {Data.data(), Data.data() + Data.size()};
 284
 285   CheckOperator(Region);
 286   const char *ErrMsg2 = "can't read past the end of the file";
 287   EXPECT_THAT_ERROR(Region[3].takeError(), FailedWithMessage(ErrMsg2));
 288   EXPECT_THAT_ERROR(Region[4].takeError(), FailedWithMessage(ErrMsg2));
 289 }
 290
 291 // Test the sysV and the gnu hash functions, particularly with UTF-8 unicode.
 292 // Use names long enough for the hash's recycling of the high bits to kick in.
 293 // Explicitly encode the UTF-8 to avoid encoding transliterations.
 294 TEST(ELFTest, Hash) {
 295   EXPECT_EQ(hashSysV("FooBarBazToto"), 0x5ec3e8fU);
 296   EXPECT_EQ(hashGnu("FooBarBazToto"), 0x5478be61U);
 297
 298   // boom💥pants
 299   EXPECT_EQ(hashSysV("boom\xf0\x9f\x92\xa5pants"), 0x5a0cf53U);
 300   EXPECT_EQ(hashGnu("boom\xf0\x9f\x92\xa5pants"), 0xf5dda2deU);
 301
 302   // woot!🧙 💑 🌈
 303   EXPECT_EQ(hashSysV("woot!\xf0\x9f\xa7\x99 \xf0\x9f\x92\x91 "
 304                      "\xf0\x9f\x8c\x88"), 0x3522e38U);
 305   EXPECT_EQ(hashGnu("woot!\xf0\x9f\xa7\x99 \xf0\x9f\x92\x91 "
 306                     "\xf0\x9f\x8c\x88"), 0xf7603f3U);
 307
 308   // This string hashes to 0x100000000 in the originally formulated function,
 309   // when long is 64 bits -- but that was never the intent. The code was
 310   // presuming 32-bit long. Thus make sure that extra bit doesn't appear.
 311   EXPECT_EQ(hashSysV("ZZZZZW9p"), 0U);
 312 }