Make GetPcAdjustment a free function.
We're now using it in contexts that don't have all of the registers available,
such as GWP-ASan and soon MTE, so it doesn't make sense to have it be a
member function of Regs.
Bug: 135772972
Change-Id: I18b104ea0adb78588d7e475d0624cefc701ba52c
diff --git a/libunwindstack/tests/RegsFake.h b/libunwindstack/tests/RegsFake.h
index 207d46e..75fc9d0 100644
--- a/libunwindstack/tests/RegsFake.h
+++ b/libunwindstack/tests/RegsFake.h
@@ -54,8 +54,6 @@
return fake_arch_ == ARCH_ARM || fake_arch_ == ARCH_X86 || fake_arch_ == ARCH_MIPS;
}
- uint64_t GetPcAdjustment(uint64_t, Elf*) override { return 2; }
-
bool StepIfSignalHandler(uint64_t, Elf*, Memory*) override { return false; }
void FakeSetArch(ArchEnum arch) { fake_arch_ = arch; }
@@ -86,7 +84,6 @@
void set_pc(uint64_t pc) override { fake_pc_ = pc; }
void set_sp(uint64_t sp) override { fake_sp_ = sp; }
- uint64_t GetPcAdjustment(uint64_t, Elf*) override { return 0; }
bool SetPcFromReturnAddress(Memory*) override { return false; }
bool StepIfSignalHandler(uint64_t, Elf*, Memory*) override { return false; }
diff --git a/libunwindstack/tests/RegsTest.cpp b/libunwindstack/tests/RegsTest.cpp
index 0a33e2f..e4fc6f0 100644
--- a/libunwindstack/tests/RegsTest.cpp
+++ b/libunwindstack/tests/RegsTest.cpp
@@ -93,123 +93,104 @@
}
TEST_F(RegsTest, rel_pc) {
- RegsArm64 arm64;
- EXPECT_EQ(4U, arm64.GetPcAdjustment(0x10, elf_.get()));
- EXPECT_EQ(4U, arm64.GetPcAdjustment(0x4, elf_.get()));
- EXPECT_EQ(0U, arm64.GetPcAdjustment(0x3, elf_.get()));
- EXPECT_EQ(0U, arm64.GetPcAdjustment(0x2, elf_.get()));
- EXPECT_EQ(0U, arm64.GetPcAdjustment(0x1, elf_.get()));
- EXPECT_EQ(0U, arm64.GetPcAdjustment(0x0, elf_.get()));
+ EXPECT_EQ(4U, GetPcAdjustment(0x10, elf_.get(), ARCH_ARM64));
+ EXPECT_EQ(4U, GetPcAdjustment(0x4, elf_.get(), ARCH_ARM64));
+ EXPECT_EQ(0U, GetPcAdjustment(0x3, elf_.get(), ARCH_ARM64));
+ EXPECT_EQ(0U, GetPcAdjustment(0x2, elf_.get(), ARCH_ARM64));
+ EXPECT_EQ(0U, GetPcAdjustment(0x1, elf_.get(), ARCH_ARM64));
+ EXPECT_EQ(0U, GetPcAdjustment(0x0, elf_.get(), ARCH_ARM64));
- RegsX86 x86;
- EXPECT_EQ(1U, x86.GetPcAdjustment(0x100, elf_.get()));
- EXPECT_EQ(1U, x86.GetPcAdjustment(0x2, elf_.get()));
- EXPECT_EQ(1U, x86.GetPcAdjustment(0x1, elf_.get()));
- EXPECT_EQ(0U, x86.GetPcAdjustment(0x0, elf_.get()));
+ EXPECT_EQ(1U, GetPcAdjustment(0x100, elf_.get(), ARCH_X86));
+ EXPECT_EQ(1U, GetPcAdjustment(0x2, elf_.get(), ARCH_X86));
+ EXPECT_EQ(1U, GetPcAdjustment(0x1, elf_.get(), ARCH_X86));
+ EXPECT_EQ(0U, GetPcAdjustment(0x0, elf_.get(), ARCH_X86));
- RegsX86_64 x86_64;
- EXPECT_EQ(1U, x86_64.GetPcAdjustment(0x100, elf_.get()));
- EXPECT_EQ(1U, x86_64.GetPcAdjustment(0x2, elf_.get()));
- EXPECT_EQ(1U, x86_64.GetPcAdjustment(0x1, elf_.get()));
- EXPECT_EQ(0U, x86_64.GetPcAdjustment(0x0, elf_.get()));
+ EXPECT_EQ(1U, GetPcAdjustment(0x100, elf_.get(), ARCH_X86_64));
+ EXPECT_EQ(1U, GetPcAdjustment(0x2, elf_.get(), ARCH_X86_64));
+ EXPECT_EQ(1U, GetPcAdjustment(0x1, elf_.get(), ARCH_X86_64));
+ EXPECT_EQ(0U, GetPcAdjustment(0x0, elf_.get(), ARCH_X86_64));
- RegsMips mips;
- EXPECT_EQ(8U, mips.GetPcAdjustment(0x10, elf_.get()));
- EXPECT_EQ(8U, mips.GetPcAdjustment(0x8, elf_.get()));
- EXPECT_EQ(0U, mips.GetPcAdjustment(0x7, elf_.get()));
- EXPECT_EQ(0U, mips.GetPcAdjustment(0x6, elf_.get()));
- EXPECT_EQ(0U, mips.GetPcAdjustment(0x5, elf_.get()));
- EXPECT_EQ(0U, mips.GetPcAdjustment(0x4, elf_.get()));
- EXPECT_EQ(0U, mips.GetPcAdjustment(0x3, elf_.get()));
- EXPECT_EQ(0U, mips.GetPcAdjustment(0x2, elf_.get()));
- EXPECT_EQ(0U, mips.GetPcAdjustment(0x1, elf_.get()));
- EXPECT_EQ(0U, mips.GetPcAdjustment(0x0, elf_.get()));
+ EXPECT_EQ(8U, GetPcAdjustment(0x10, elf_.get(), ARCH_MIPS));
+ EXPECT_EQ(8U, GetPcAdjustment(0x8, elf_.get(), ARCH_MIPS));
+ EXPECT_EQ(0U, GetPcAdjustment(0x7, elf_.get(), ARCH_MIPS));
+ EXPECT_EQ(0U, GetPcAdjustment(0x6, elf_.get(), ARCH_MIPS));
+ EXPECT_EQ(0U, GetPcAdjustment(0x5, elf_.get(), ARCH_MIPS));
+ EXPECT_EQ(0U, GetPcAdjustment(0x4, elf_.get(), ARCH_MIPS));
+ EXPECT_EQ(0U, GetPcAdjustment(0x3, elf_.get(), ARCH_MIPS));
+ EXPECT_EQ(0U, GetPcAdjustment(0x2, elf_.get(), ARCH_MIPS));
+ EXPECT_EQ(0U, GetPcAdjustment(0x1, elf_.get(), ARCH_MIPS));
+ EXPECT_EQ(0U, GetPcAdjustment(0x0, elf_.get(), ARCH_MIPS));
- RegsMips64 mips64;
- EXPECT_EQ(8U, mips64.GetPcAdjustment(0x10, elf_.get()));
- EXPECT_EQ(8U, mips64.GetPcAdjustment(0x8, elf_.get()));
- EXPECT_EQ(0U, mips64.GetPcAdjustment(0x7, elf_.get()));
- EXPECT_EQ(0U, mips64.GetPcAdjustment(0x6, elf_.get()));
- EXPECT_EQ(0U, mips64.GetPcAdjustment(0x5, elf_.get()));
- EXPECT_EQ(0U, mips64.GetPcAdjustment(0x4, elf_.get()));
- EXPECT_EQ(0U, mips64.GetPcAdjustment(0x3, elf_.get()));
- EXPECT_EQ(0U, mips64.GetPcAdjustment(0x2, elf_.get()));
- EXPECT_EQ(0U, mips64.GetPcAdjustment(0x1, elf_.get()));
- EXPECT_EQ(0U, mips64.GetPcAdjustment(0x0, elf_.get()));
+ EXPECT_EQ(8U, GetPcAdjustment(0x10, elf_.get(), ARCH_MIPS64));
+ EXPECT_EQ(8U, GetPcAdjustment(0x8, elf_.get(), ARCH_MIPS64));
+ EXPECT_EQ(0U, GetPcAdjustment(0x7, elf_.get(), ARCH_MIPS64));
+ EXPECT_EQ(0U, GetPcAdjustment(0x6, elf_.get(), ARCH_MIPS64));
+ EXPECT_EQ(0U, GetPcAdjustment(0x5, elf_.get(), ARCH_MIPS64));
+ EXPECT_EQ(0U, GetPcAdjustment(0x4, elf_.get(), ARCH_MIPS64));
+ EXPECT_EQ(0U, GetPcAdjustment(0x3, elf_.get(), ARCH_MIPS64));
+ EXPECT_EQ(0U, GetPcAdjustment(0x2, elf_.get(), ARCH_MIPS64));
+ EXPECT_EQ(0U, GetPcAdjustment(0x1, elf_.get(), ARCH_MIPS64));
+ EXPECT_EQ(0U, GetPcAdjustment(0x0, elf_.get(), ARCH_MIPS64));
}
TEST_F(RegsTest, rel_pc_arm) {
- RegsArm arm;
-
// Check fence posts.
elf_->FakeSetLoadBias(0);
- EXPECT_EQ(2U, arm.GetPcAdjustment(0x5, elf_.get()));
- EXPECT_EQ(2U, arm.GetPcAdjustment(0x4, elf_.get()));
- EXPECT_EQ(2U, arm.GetPcAdjustment(0x3, elf_.get()));
- EXPECT_EQ(2U, arm.GetPcAdjustment(0x2, elf_.get()));
- EXPECT_EQ(0U, arm.GetPcAdjustment(0x1, elf_.get()));
- EXPECT_EQ(0U, arm.GetPcAdjustment(0x0, elf_.get()));
+ EXPECT_EQ(2U, GetPcAdjustment(0x5, elf_.get(), ARCH_ARM));
+ EXPECT_EQ(2U, GetPcAdjustment(0x4, elf_.get(), ARCH_ARM));
+ EXPECT_EQ(2U, GetPcAdjustment(0x3, elf_.get(), ARCH_ARM));
+ EXPECT_EQ(2U, GetPcAdjustment(0x2, elf_.get(), ARCH_ARM));
+ EXPECT_EQ(0U, GetPcAdjustment(0x1, elf_.get(), ARCH_ARM));
+ EXPECT_EQ(0U, GetPcAdjustment(0x0, elf_.get(), ARCH_ARM));
elf_->FakeSetLoadBias(0x100);
- EXPECT_EQ(0U, arm.GetPcAdjustment(0x1, elf_.get()));
- EXPECT_EQ(2U, arm.GetPcAdjustment(0x2, elf_.get()));
- EXPECT_EQ(2U, arm.GetPcAdjustment(0xff, elf_.get()));
- EXPECT_EQ(2U, arm.GetPcAdjustment(0x105, elf_.get()));
- EXPECT_EQ(2U, arm.GetPcAdjustment(0x104, elf_.get()));
- EXPECT_EQ(2U, arm.GetPcAdjustment(0x103, elf_.get()));
- EXPECT_EQ(2U, arm.GetPcAdjustment(0x102, elf_.get()));
- EXPECT_EQ(0U, arm.GetPcAdjustment(0x101, elf_.get()));
- EXPECT_EQ(0U, arm.GetPcAdjustment(0x100, elf_.get()));
+ EXPECT_EQ(0U, GetPcAdjustment(0x1, elf_.get(), ARCH_ARM));
+ EXPECT_EQ(2U, GetPcAdjustment(0x2, elf_.get(), ARCH_ARM));
+ EXPECT_EQ(2U, GetPcAdjustment(0xff, elf_.get(), ARCH_ARM));
+ EXPECT_EQ(2U, GetPcAdjustment(0x105, elf_.get(), ARCH_ARM));
+ EXPECT_EQ(2U, GetPcAdjustment(0x104, elf_.get(), ARCH_ARM));
+ EXPECT_EQ(2U, GetPcAdjustment(0x103, elf_.get(), ARCH_ARM));
+ EXPECT_EQ(2U, GetPcAdjustment(0x102, elf_.get(), ARCH_ARM));
+ EXPECT_EQ(0U, GetPcAdjustment(0x101, elf_.get(), ARCH_ARM));
+ EXPECT_EQ(0U, GetPcAdjustment(0x100, elf_.get(), ARCH_ARM));
// Check thumb instructions handling.
elf_->FakeSetLoadBias(0);
memory_->SetData32(0x2000, 0);
- EXPECT_EQ(2U, arm.GetPcAdjustment(0x2005, elf_.get()));
+ EXPECT_EQ(2U, GetPcAdjustment(0x2005, elf_.get(), ARCH_ARM));
memory_->SetData32(0x2000, 0xe000f000);
- EXPECT_EQ(4U, arm.GetPcAdjustment(0x2005, elf_.get()));
+ EXPECT_EQ(4U, GetPcAdjustment(0x2005, elf_.get(), ARCH_ARM));
elf_->FakeSetLoadBias(0x400);
memory_->SetData32(0x2100, 0);
- EXPECT_EQ(2U, arm.GetPcAdjustment(0x2505, elf_.get()));
+ EXPECT_EQ(2U, GetPcAdjustment(0x2505, elf_.get(), ARCH_ARM));
memory_->SetData32(0x2100, 0xf111f111);
- EXPECT_EQ(4U, arm.GetPcAdjustment(0x2505, elf_.get()));
+ EXPECT_EQ(4U, GetPcAdjustment(0x2505, elf_.get(), ARCH_ARM));
}
TEST_F(RegsTest, elf_invalid) {
- RegsArm regs_arm;
- RegsArm64 regs_arm64;
- RegsX86 regs_x86;
- RegsX86_64 regs_x86_64;
- RegsMips regs_mips;
- RegsMips64 regs_mips64;
MapInfo map_info(nullptr, nullptr, 0x1000, 0x2000, 0, 0, "");
Elf* invalid_elf = new Elf(nullptr);
map_info.elf.reset(invalid_elf);
- regs_arm.set_pc(0x1500);
- EXPECT_EQ(0x500U, invalid_elf->GetRelPc(regs_arm.pc(), &map_info));
- EXPECT_EQ(2U, regs_arm.GetPcAdjustment(0x500U, invalid_elf));
- EXPECT_EQ(2U, regs_arm.GetPcAdjustment(0x511U, invalid_elf));
+ EXPECT_EQ(0x500U, invalid_elf->GetRelPc(0x1500, &map_info));
+ EXPECT_EQ(2U, GetPcAdjustment(0x500U, invalid_elf, ARCH_ARM));
+ EXPECT_EQ(2U, GetPcAdjustment(0x511U, invalid_elf, ARCH_ARM));
- regs_arm64.set_pc(0x1600);
- EXPECT_EQ(0x600U, invalid_elf->GetRelPc(regs_arm64.pc(), &map_info));
- EXPECT_EQ(4U, regs_arm64.GetPcAdjustment(0x600U, invalid_elf));
+ EXPECT_EQ(0x600U, invalid_elf->GetRelPc(0x1600, &map_info));
+ EXPECT_EQ(4U, GetPcAdjustment(0x600U, invalid_elf, ARCH_ARM64));
- regs_x86.set_pc(0x1700);
- EXPECT_EQ(0x700U, invalid_elf->GetRelPc(regs_x86.pc(), &map_info));
- EXPECT_EQ(1U, regs_x86.GetPcAdjustment(0x700U, invalid_elf));
+ EXPECT_EQ(0x700U, invalid_elf->GetRelPc(0x1700, &map_info));
+ EXPECT_EQ(1U, GetPcAdjustment(0x700U, invalid_elf, ARCH_X86));
- regs_x86_64.set_pc(0x1800);
- EXPECT_EQ(0x800U, invalid_elf->GetRelPc(regs_x86_64.pc(), &map_info));
- EXPECT_EQ(1U, regs_x86_64.GetPcAdjustment(0x800U, invalid_elf));
+ EXPECT_EQ(0x800U, invalid_elf->GetRelPc(0x1800, &map_info));
+ EXPECT_EQ(1U, GetPcAdjustment(0x800U, invalid_elf, ARCH_X86_64));
- regs_mips.set_pc(0x1900);
- EXPECT_EQ(0x900U, invalid_elf->GetRelPc(regs_mips.pc(), &map_info));
- EXPECT_EQ(8U, regs_mips.GetPcAdjustment(0x900U, invalid_elf));
+ EXPECT_EQ(0x900U, invalid_elf->GetRelPc(0x1900, &map_info));
+ EXPECT_EQ(8U, GetPcAdjustment(0x900U, invalid_elf, ARCH_MIPS));
- regs_mips64.set_pc(0x1a00);
- EXPECT_EQ(0xa00U, invalid_elf->GetRelPc(regs_mips64.pc(), &map_info));
- EXPECT_EQ(8U, regs_mips64.GetPcAdjustment(0xa00U, invalid_elf));
+ EXPECT_EQ(0xa00U, invalid_elf->GetRelPc(0x1a00, &map_info));
+ EXPECT_EQ(8U, GetPcAdjustment(0xa00U, invalid_elf, ARCH_MIPS64));
}
TEST_F(RegsTest, arm_verify_sp_pc) {
diff --git a/libunwindstack/tests/UnwinderTest.cpp b/libunwindstack/tests/UnwinderTest.cpp
index ef1950c..dd33aa9 100644
--- a/libunwindstack/tests/UnwinderTest.cpp
+++ b/libunwindstack/tests/UnwinderTest.cpp
@@ -161,8 +161,8 @@
regs_.set_pc(0x1000);
regs_.set_sp(0x10000);
- ElfInterfaceFake::FakePushStepData(StepData(0x1102, 0x10010, false));
- ElfInterfaceFake::FakePushStepData(StepData(0x1202, 0x10020, false));
+ ElfInterfaceFake::FakePushStepData(StepData(0x1104, 0x10010, false));
+ ElfInterfaceFake::FakePushStepData(StepData(0x1204, 0x10020, false));
ElfInterfaceFake::FakePushStepData(StepData(0, 0, true));
Unwinder unwinder(64, maps_.get(), ®s_, process_memory_);
@@ -225,8 +225,8 @@
regs_.set_pc(0x1000);
regs_.set_sp(0x10000);
- ElfInterfaceFake::FakePushStepData(StepData(0x1102, 0x10010, false));
- ElfInterfaceFake::FakePushStepData(StepData(0x1202, 0x10020, false));
+ ElfInterfaceFake::FakePushStepData(StepData(0x1104, 0x10010, false));
+ ElfInterfaceFake::FakePushStepData(StepData(0x1204, 0x10020, false));
ElfInterfaceFake::FakePushStepData(StepData(0, 0, true));
Unwinder unwinder(64, maps_.get(), ®s_, process_memory_);
@@ -445,7 +445,7 @@
TEST_F(UnwinderTest, max_frames) {
for (size_t i = 0; i < 30; i++) {
ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame" + std::to_string(i), i));
- ElfInterfaceFake::FakePushStepData(StepData(0x1102 + i * 0x100, 0x10010 + i * 0x10, false));
+ ElfInterfaceFake::FakePushStepData(StepData(0x1104 + i * 0x100, 0x10010 + i * 0x10, false));
}
regs_.set_pc(0x1000);
@@ -484,12 +484,12 @@
regs_.set_pc(0x20000);
regs_.set_sp(0x10000);
- ElfInterfaceFake::FakePushStepData(StepData(0x23002, 0x10010, false));
- ElfInterfaceFake::FakePushStepData(StepData(0x23102, 0x10020, false));
- ElfInterfaceFake::FakePushStepData(StepData(0x20002, 0x10030, false));
- ElfInterfaceFake::FakePushStepData(StepData(0x21002, 0x10040, false));
+ ElfInterfaceFake::FakePushStepData(StepData(0x23004, 0x10010, false));
+ ElfInterfaceFake::FakePushStepData(StepData(0x23104, 0x10020, false));
+ ElfInterfaceFake::FakePushStepData(StepData(0x20004, 0x10030, false));
+ ElfInterfaceFake::FakePushStepData(StepData(0x21004, 0x10040, false));
ElfInterfaceFake::FakePushStepData(StepData(0x1002, 0x10050, false));
- ElfInterfaceFake::FakePushStepData(StepData(0x21002, 0x10060, false));
+ ElfInterfaceFake::FakePushStepData(StepData(0x21004, 0x10060, false));
ElfInterfaceFake::FakePushStepData(StepData(0x23002, 0x10070, false));
ElfInterfaceFake::FakePushStepData(StepData(0, 0, true));
@@ -553,7 +553,7 @@
regs_.set_pc(0x1000);
regs_.set_sp(0x63000);
- ElfInterfaceFake::FakePushStepData(StepData(0x21002, 0x50020, false));
+ ElfInterfaceFake::FakePushStepData(StepData(0x21004, 0x50020, false));
ElfInterfaceFake::FakePushStepData(StepData(0, 0, true));
Unwinder unwinder(64, maps_.get(), ®s_, process_memory_);
@@ -670,10 +670,10 @@
// Fake as if code called a nullptr function.
regs_.set_pc(0);
regs_.set_sp(0x10000);
- regs_.FakeSetReturnAddress(0x1202);
+ regs_.FakeSetReturnAddress(0x1204);
regs_.FakeSetReturnAddressValid(true);
- ElfInterfaceFake::FakePushStepData(StepData(0x23102, 0x10020, false));
+ ElfInterfaceFake::FakePushStepData(StepData(0x23104, 0x10020, false));
ElfInterfaceFake::FakePushStepData(StepData(0, 0, true));
Unwinder unwinder(64, maps_.get(), ®s_, process_memory_);
@@ -789,7 +789,7 @@
// Fake as if code called a nullptr function.
regs_.set_pc(0);
regs_.set_sp(0x10000);
- regs_.FakeSetReturnAddress(0x1202);
+ regs_.FakeSetReturnAddress(0x1204);
regs_.FakeSetReturnAddressValid(true);
Unwinder unwinder(64, maps_.get(), ®s_, process_memory_);
@@ -858,8 +858,8 @@
// Fake as if code called a nullptr function.
regs_.set_pc(0x1000);
regs_.set_sp(0x10000);
- ElfInterfaceFake::FakePushStepData(StepData(0x43402, 0x10010, false));
- ElfInterfaceFake::FakePushStepData(StepData(0x53502, 0x10020, false));
+ ElfInterfaceFake::FakePushStepData(StepData(0x43404, 0x10010, false));
+ ElfInterfaceFake::FakePushStepData(StepData(0x53504, 0x10020, false));
ElfInterfaceFake::FakePushStepData(StepData(0, 0, true));
Unwinder unwinder(64, maps_.get(), ®s_, process_memory_);
@@ -915,11 +915,11 @@
regs_.set_pc(0x1000);
regs_.set_sp(0x10000);
- ElfInterfaceFake::FakePushStepData(StepData(0x33402, 0x10010, false));
- ElfInterfaceFake::FakePushStepData(StepData(0x33502, 0x10020, false));
- ElfInterfaceFake::FakePushStepData(StepData(0x33502, 0x10020, false));
- ElfInterfaceFake::FakePushStepData(StepData(0x33502, 0x10020, false));
- ElfInterfaceFake::FakePushStepData(StepData(0x33502, 0x10020, false));
+ ElfInterfaceFake::FakePushStepData(StepData(0x33404, 0x10010, false));
+ ElfInterfaceFake::FakePushStepData(StepData(0x33504, 0x10020, false));
+ ElfInterfaceFake::FakePushStepData(StepData(0x33504, 0x10020, false));
+ ElfInterfaceFake::FakePushStepData(StepData(0x33504, 0x10020, false));
+ ElfInterfaceFake::FakePushStepData(StepData(0x33504, 0x10020, false));
ElfInterfaceFake::FakePushStepData(StepData(0, 0, true));
Unwinder unwinder(64, maps_.get(), ®s_, process_memory_);
@@ -1113,7 +1113,7 @@
regs_.set_pc(0x1000);
regs_.set_sp(0x10000);
regs_.FakeSetDexPc(0xa3400);
- ElfInterfaceFake::FakePushStepData(StepData(0x33402, 0x10010, false));
+ ElfInterfaceFake::FakePushStepData(StepData(0x33404, 0x10010, false));
ElfInterfaceFake::FakePushStepData(StepData(0, 0, true));
Unwinder unwinder(64, maps_.get(), ®s_, process_memory_);