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More relocation tests.

This commit is contained in:
Christian Speckner 2024-07-15 22:50:23 +02:00
parent d68850d466
commit 367bdeb56f
1 changed files with 74 additions and 0 deletions
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74
src/emucore/elf/LinkerTest.cxx
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@ -736,6 +736,20 @@ TEST(ElfLinker, RodataSectionsGoToRodata) {
EXPECT_EQ(segmentRead32(linker, SegmentType::text, 0x08), 0xf803f000); EXPECT_EQ(segmentRead32(linker, SegmentType::text, 0x08), 0xf803f000);
} }
TEST(ElfLinker, R_ARM_THM_CALL_ThrowsIfTargetIsOutOfBounds) {
ElfFixture fixture(1000);
ElfLinker linker(0x00100000, 0x00200000, 0x00300000, fixture);
fixture
.addSection(".text.1", ElfFile::SHT_PROGBITS, 0, 0x10)
.addSection(".text.2", ElfFile::SHT_PROGBITS, 0x10, 0x20)
.addSymbol("foo", 0x04, 2)
.addRelocation(1, 0, 0x08, ElfFile::R_ARM_THM_CALL, 0x7fffff00)
.write32(0x08, 0xfffff7ff);
EXPECT_THROW(linker.link({}), ElfLinker::ElfLinkError);
}
TEST(ElfLinker, R_ARM_THM_JUMP24L_PatchesOffset) { TEST(ElfLinker, R_ARM_THM_JUMP24L_PatchesOffset) {
ElfFixture fixture(1000); ElfFixture fixture(1000);
ElfLinker linker(0x00100000, 0x00200000, 0x00300000, fixture); ElfLinker linker(0x00100000, 0x00200000, 0x00300000, fixture);
@ -784,4 +798,64 @@ TEST(ElfLinker, RodataSectionsGoToRodata) {
EXPECT_EQ(segmentRead32(linker, SegmentType::text, 0x08), 0xb803f000); EXPECT_EQ(segmentRead32(linker, SegmentType::text, 0x08), 0xb803f000);
} }
TEST(ElfLinker, R_ARM_THM_JUMP24_ThrowsIfTargetIsOutOfBounds) {
ElfFixture fixture(1000);
ElfLinker linker(0x00100000, 0x00200000, 0x00300000, fixture);
fixture
.addSection(".text.1", ElfFile::SHT_PROGBITS, 0, 0x10)
.addSection(".text.2", ElfFile::SHT_PROGBITS, 0x10, 0x20)
.addSymbol("foo", 0x04, 2)
.addRelocation(1, 0, 0x08, ElfFile::R_ARM_THM_JUMP24, 0x7fffff00)
.write32(0x08, 0xbffff7ff);
EXPECT_THROW(linker.link({}), ElfLinker::ElfLinkError);
}
class RelocationExceptionTest: public testing::TestWithParam<uInt32> {};
TEST_P(RelocationExceptionTest, RelocationThrowsIfRelocatedSymbolIsNotResolved) {
ElfFixture fixture(1000);
ElfLinker linker(0x00100000, 0x00200000, 0x00300000, fixture);
fixture
.addSection(".text.1", ElfFile::SHT_PROGBITS, 0, 0x10)
.addSection(".text.2", ElfFile::SHT_PROGBITS, 0x10, 0x10)
.addSymbol("foo", 0x1234, ElfFile::SHN_UND)
.addRelocation(2, 0, 0x04, GetParam());
EXPECT_THROW(linker.link({}), ElfLinker::ElfLinkError);
}
TEST_P(RelocationExceptionTest, RelocationThrowsIfTargetIsBeyondSectionLimits) {
ElfFixture fixture(1000);
ElfLinker linker(0x00100000, 0x00200000, 0x00300000, fixture);
fixture
.addSection(".text.1", ElfFile::SHT_PROGBITS, 0, 0x10)
.addSection(".text.2", ElfFile::SHT_PROGBITS, 0x10, 0x10)
.addSymbol("foo", 0x1234, ElfFile::SHN_ABS)
.addRelocation(2, 0, 0xd, GetParam());
EXPECT_THROW(linker.link({}), ElfLinker::ElfLinkError);
}
TEST_P(RelocationExceptionTest, RelocationDoesNotThrowIfTargetIsExactlyOnSectionLimit) {
ElfFixture fixture(1000);
ElfLinker linker(0x00100000, 0x00200000, 0x00300000, fixture);
fixture
.addSection(".text.1", ElfFile::SHT_PROGBITS, 0, 0x10)
.addSection(".text.2", ElfFile::SHT_PROGBITS, 0x10, 0x10)
.addSymbol("foo", 0x1234, ElfFile::SHN_ABS)
.addRelocation(2, 0, 0xc, GetParam());
EXPECT_NO_THROW(linker.link({}));
}
INSTANTIATE_TEST_SUITE_P(RelocationExceptionSuite, RelocationExceptionTest, testing::Values(
ElfFile::R_ARM_ABS32, ElfFile::R_ARM_TARGET1,
ElfFile::R_ARM_THM_CALL, ElfFile::R_ARM_THM_JUMP24
));
} }