diff --git a/libunwindstack/LocalUnwinder.cpp b/libunwindstack/LocalUnwinder.cpp
index 5d81200..05650fb 100644
--- a/libunwindstack/LocalUnwinder.cpp
+++ b/libunwindstack/LocalUnwinder.cpp
@@ -106,7 +106,7 @@
     uint64_t step_pc = rel_pc;
     uint64_t pc_adjustment;
     if (adjust_pc) {
-      pc_adjustment = regs->GetPcAdjustment(rel_pc, elf);
+      pc_adjustment = GetPcAdjustment(rel_pc, elf, arch);
     } else {
       pc_adjustment = 0;
     }
diff --git a/libunwindstack/Regs.cpp b/libunwindstack/Regs.cpp
index e0a785b..03aa6c2 100644
--- a/libunwindstack/Regs.cpp
+++ b/libunwindstack/Regs.cpp
@@ -121,4 +121,62 @@
   return regs;
 }
 
+uint64_t GetPcAdjustment(uint64_t rel_pc, Elf* elf, ArchEnum arch) {
+  switch (arch) {
+    case ARCH_ARM: {
+      if (!elf->valid()) {
+        return 2;
+      }
+
+      uint64_t load_bias = elf->GetLoadBias();
+      if (rel_pc < load_bias) {
+        if (rel_pc < 2) {
+          return 0;
+        }
+        return 2;
+      }
+      uint64_t adjusted_rel_pc = rel_pc - load_bias;
+      if (adjusted_rel_pc < 5) {
+        if (adjusted_rel_pc < 2) {
+          return 0;
+        }
+        return 2;
+      }
+
+      if (adjusted_rel_pc & 1) {
+        // This is a thumb instruction, it could be 2 or 4 bytes.
+        uint32_t value;
+        if (!elf->memory()->ReadFully(adjusted_rel_pc - 5, &value, sizeof(value)) ||
+            (value & 0xe000f000) != 0xe000f000) {
+          return 2;
+        }
+      }
+      return 4;
+    }
+  case ARCH_ARM64: {
+    if (rel_pc < 4) {
+      return 0;
+    }
+    return 4;
+  }
+  case ARCH_MIPS:
+  case ARCH_MIPS64: {
+    if (rel_pc < 8) {
+      return 0;
+    }
+    // For now, just assume no compact branches
+    return 8;
+  }
+  case ARCH_X86:
+  case ARCH_X86_64: {
+    if (rel_pc == 0) {
+      return 0;
+    }
+    return 1;
+  }
+  case ARCH_UNKNOWN:
+    return 0;
+  }
+}
+
 }  // namespace unwindstack
diff --git a/libunwindstack/RegsArm.cpp b/libunwindstack/RegsArm.cpp
index 1b1f7eb..1aaa08f 100644
--- a/libunwindstack/RegsArm.cpp
+++ b/libunwindstack/RegsArm.cpp
@@ -51,37 +51,6 @@
   regs_[ARM_REG_SP] = sp;
 }
 
-uint64_t RegsArm::GetPcAdjustment(uint64_t rel_pc, Elf* elf) {
-  if (!elf->valid()) {
-    return 2;
-  }
-
-  uint64_t load_bias = elf->GetLoadBias();
-  if (rel_pc < load_bias) {
-    if (rel_pc < 2) {
-      return 0;
-    }
-    return 2;
-  }
-  uint64_t adjusted_rel_pc = rel_pc - load_bias;
-  if (adjusted_rel_pc < 5) {
-    if (adjusted_rel_pc < 2) {
-      return 0;
-    }
-    return 2;
-  }
-
-  if (adjusted_rel_pc & 1) {
-    // This is a thumb instruction, it could be 2 or 4 bytes.
-    uint32_t value;
-    if (!elf->memory()->ReadFully(adjusted_rel_pc - 5, &value, sizeof(value)) ||
-        (value & 0xe000f000) != 0xe000f000) {
-      return 2;
-    }
-  }
-  return 4;
-}
-
 bool RegsArm::SetPcFromReturnAddress(Memory*) {
   uint32_t lr = regs_[ARM_REG_LR];
   if (regs_[ARM_REG_PC] == lr) {
diff --git a/libunwindstack/RegsArm64.cpp b/libunwindstack/RegsArm64.cpp
index 00b3367..5b7431a 100644
--- a/libunwindstack/RegsArm64.cpp
+++ b/libunwindstack/RegsArm64.cpp
@@ -52,13 +52,6 @@
   regs_[ARM64_REG_SP] = sp;
 }
 
-uint64_t RegsArm64::GetPcAdjustment(uint64_t rel_pc, Elf*) {
-  if (rel_pc < 4) {
-    return 0;
-  }
-  return 4;
-}
-
 bool RegsArm64::SetPcFromReturnAddress(Memory*) {
   uint64_t lr = regs_[ARM64_REG_LR];
   if (regs_[ARM64_REG_PC] == lr) {
diff --git a/libunwindstack/RegsMips.cpp b/libunwindstack/RegsMips.cpp
index ebefe42..ab84691 100644
--- a/libunwindstack/RegsMips.cpp
+++ b/libunwindstack/RegsMips.cpp
@@ -52,14 +52,6 @@
   regs_[MIPS_REG_SP] = static_cast<uint32_t>(sp);
 }
 
-uint64_t RegsMips::GetPcAdjustment(uint64_t rel_pc, Elf*) {
-  if (rel_pc < 8) {
-    return 0;
-  }
-  // For now, just assume no compact branches
-  return 8;
-}
-
 bool RegsMips::SetPcFromReturnAddress(Memory*) {
   uint32_t ra = regs_[MIPS_REG_RA];
   if (regs_[MIPS_REG_PC] == ra) {
diff --git a/libunwindstack/RegsMips64.cpp b/libunwindstack/RegsMips64.cpp
index be2fd22..7f600d3 100644
--- a/libunwindstack/RegsMips64.cpp
+++ b/libunwindstack/RegsMips64.cpp
@@ -52,14 +52,6 @@
   regs_[MIPS64_REG_SP] = sp;
 }
 
-uint64_t RegsMips64::GetPcAdjustment(uint64_t rel_pc, Elf*) {
-  if (rel_pc < 8) {
-    return 0;
-  }
-  // For now, just assume no compact branches
-  return 8;
-}
-
 bool RegsMips64::SetPcFromReturnAddress(Memory*) {
   uint64_t ra = regs_[MIPS64_REG_RA];
   if (regs_[MIPS64_REG_PC] == ra) {
diff --git a/libunwindstack/RegsX86.cpp b/libunwindstack/RegsX86.cpp
index 5538fc0..4d3c246 100644
--- a/libunwindstack/RegsX86.cpp
+++ b/libunwindstack/RegsX86.cpp
@@ -50,13 +50,6 @@
   regs_[X86_REG_SP] = static_cast<uint32_t>(sp);
 }
 
-uint64_t RegsX86::GetPcAdjustment(uint64_t rel_pc, Elf*) {
-  if (rel_pc == 0) {
-    return 0;
-  }
-  return 1;
-}
-
 bool RegsX86::SetPcFromReturnAddress(Memory* process_memory) {
   // Attempt to get the return address from the top of the stack.
   uint32_t new_pc;
diff --git a/libunwindstack/RegsX86_64.cpp b/libunwindstack/RegsX86_64.cpp
index 5b9aa58..c9e245d 100644
--- a/libunwindstack/RegsX86_64.cpp
+++ b/libunwindstack/RegsX86_64.cpp
@@ -51,13 +51,6 @@
   regs_[X86_64_REG_SP] = sp;
 }
 
-uint64_t RegsX86_64::GetPcAdjustment(uint64_t rel_pc, Elf*) {
-  if (rel_pc == 0) {
-    return 0;
-  }
-  return 1;
-}
-
 bool RegsX86_64::SetPcFromReturnAddress(Memory* process_memory) {
   // Attempt to get the return address from the top of the stack.
   uint64_t new_pc;
diff --git a/libunwindstack/Unwinder.cpp b/libunwindstack/Unwinder.cpp
index 1bb0319..560030e 100644
--- a/libunwindstack/Unwinder.cpp
+++ b/libunwindstack/Unwinder.cpp
@@ -181,7 +181,7 @@
         step_pc = rel_pc;
       }
       if (adjust_pc) {
-        pc_adjustment = regs_->GetPcAdjustment(rel_pc, elf);
+        pc_adjustment = GetPcAdjustment(rel_pc, elf, arch);
       } else {
         pc_adjustment = 0;
       }
diff --git a/libunwindstack/include/unwindstack/Regs.h b/libunwindstack/include/unwindstack/Regs.h
index 4f761b4..a367e6c 100644
--- a/libunwindstack/include/unwindstack/Regs.h
+++ b/libunwindstack/include/unwindstack/Regs.h
@@ -64,8 +64,6 @@
   uint64_t dex_pc() { return dex_pc_; }
   void set_dex_pc(uint64_t dex_pc) { dex_pc_ = dex_pc; }
 
-  virtual uint64_t GetPcAdjustment(uint64_t rel_pc, Elf* elf) = 0;
-
   virtual bool StepIfSignalHandler(uint64_t elf_offset, Elf* elf, Memory* process_memory) = 0;
 
   virtual bool SetPcFromReturnAddress(Memory* process_memory) = 0;
@@ -110,6 +108,8 @@
   std::vector<AddressType> regs_;
 };
 
+uint64_t GetPcAdjustment(uint64_t rel_pc, Elf* elf, ArchEnum arch);
+
 }  // namespace unwindstack
 
 #endif  // _LIBUNWINDSTACK_REGS_H
diff --git a/libunwindstack/include/unwindstack/RegsArm.h b/libunwindstack/include/unwindstack/RegsArm.h
index aa029be..fbb34e7 100644
--- a/libunwindstack/include/unwindstack/RegsArm.h
+++ b/libunwindstack/include/unwindstack/RegsArm.h
@@ -36,8 +36,6 @@
 
   ArchEnum Arch() override final;
 
-  uint64_t GetPcAdjustment(uint64_t rel_pc, Elf* elf) override;
-
   bool SetPcFromReturnAddress(Memory* process_memory) override;
 
   bool StepIfSignalHandler(uint64_t elf_offset, Elf* elf, Memory* process_memory) override;
diff --git a/libunwindstack/include/unwindstack/RegsArm64.h b/libunwindstack/include/unwindstack/RegsArm64.h
index 5cd7e5b..2b3ddeb 100644
--- a/libunwindstack/include/unwindstack/RegsArm64.h
+++ b/libunwindstack/include/unwindstack/RegsArm64.h
@@ -36,8 +36,6 @@
 
   ArchEnum Arch() override final;
 
-  uint64_t GetPcAdjustment(uint64_t rel_pc, Elf* elf) override;
-
   bool SetPcFromReturnAddress(Memory* process_memory) override;
 
   bool StepIfSignalHandler(uint64_t elf_offset, Elf* elf, Memory* process_memory) override;
diff --git a/libunwindstack/include/unwindstack/RegsMips.h b/libunwindstack/include/unwindstack/RegsMips.h
index 8164a15..dc09b83 100644
--- a/libunwindstack/include/unwindstack/RegsMips.h
+++ b/libunwindstack/include/unwindstack/RegsMips.h
@@ -36,8 +36,6 @@
 
   ArchEnum Arch() override final;
 
-  uint64_t GetPcAdjustment(uint64_t rel_pc, Elf* elf) override;
-
   bool SetPcFromReturnAddress(Memory* process_memory) override;
 
   bool StepIfSignalHandler(uint64_t elf_offset, Elf* elf, Memory* process_memory) override;
diff --git a/libunwindstack/include/unwindstack/RegsMips64.h b/libunwindstack/include/unwindstack/RegsMips64.h
index c982542..64a80dc 100644
--- a/libunwindstack/include/unwindstack/RegsMips64.h
+++ b/libunwindstack/include/unwindstack/RegsMips64.h
@@ -36,8 +36,6 @@
 
   ArchEnum Arch() override final;
 
-  uint64_t GetPcAdjustment(uint64_t rel_pc, Elf* elf) override;
-
   bool SetPcFromReturnAddress(Memory* process_memory) override;
 
   bool StepIfSignalHandler(uint64_t elf_offset, Elf* elf, Memory* process_memory) override;
diff --git a/libunwindstack/include/unwindstack/RegsX86.h b/libunwindstack/include/unwindstack/RegsX86.h
index 2323a4f..cfbdda6 100644
--- a/libunwindstack/include/unwindstack/RegsX86.h
+++ b/libunwindstack/include/unwindstack/RegsX86.h
@@ -37,8 +37,6 @@
 
   ArchEnum Arch() override final;
 
-  uint64_t GetPcAdjustment(uint64_t rel_pc, Elf* elf) override;
-
   bool SetPcFromReturnAddress(Memory* process_memory) override;
 
   bool StepIfSignalHandler(uint64_t elf_offset, Elf* elf, Memory* process_memory) override;
diff --git a/libunwindstack/include/unwindstack/RegsX86_64.h b/libunwindstack/include/unwindstack/RegsX86_64.h
index 3e919a4..a11aef0 100644
--- a/libunwindstack/include/unwindstack/RegsX86_64.h
+++ b/libunwindstack/include/unwindstack/RegsX86_64.h
@@ -37,8 +37,6 @@
 
   ArchEnum Arch() override final;
 
-  uint64_t GetPcAdjustment(uint64_t rel_pc, Elf* elf) override;
-
   bool SetPcFromReturnAddress(Memory* process_memory) override;
 
   bool StepIfSignalHandler(uint64_t elf_offset, Elf* elf, Memory* process_memory) override;
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(), &regs_, 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(), &regs_, 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(), &regs_, 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(), &regs_, 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(), &regs_, 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(), &regs_, 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(), &regs_, 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(), &regs_, process_memory_);