community/llvm-libunwind: add ppc64le support

Backported patches [1][2] that add support for
llvm-libunwind[3] on ppc64le.

[1] dc25db1eb7a3cbe5c1b58f5225606efe9218ccd0
[2] 2b4c5e067b7259ae5d60553c62e309a1780df570
[3] https://github.com/llvm-mirror/libunwind

2 files changed, 1508 insertions, 3 deletions

diff --git a/community/llvm-libunwind/APKBUILD b/community/llvm-libunwind/APKBUILD
index dcaf762304..300e72c017 100644
--- a/community/llvm-libunwind/APKBUILD
+++ b/community/llvm-libunwind/APKBUILD
@@ -8,12 +8,13 @@ _llvmver=${pkgver%%.*}
 pkgrel=0
 pkgdesc="LLVM version of libunwind library"
 url="http://llvm.org/"
-arch="all !ppc64le !s390x"
+arch="all !s390x"
 license="BSD"
 depends_dev="!libunwind-dev"
 makedepends="cmake llvm$_llvmver-dev"
 subpackages="$pkgname-dev"
-source="https://www.llvm.org/releases/$pkgver/$_pkgname-$pkgver.src.tar.xz"
+source="https://www.llvm.org/releases/$pkgver/$_pkgname-$pkgver.src.tar.xz
+	ppc64le-support.patch"
 builddir="$srcdir/$_pkgname-$pkgver.src"
 options="!check"
 
@@ -42,4 +43,5 @@ package() {
 	cp include/*.h "$pkgdir"/usr/include/
 }
 
-sha512sums="6c0f7a286c1ffa46769685ee36604cd90ed40470e1c3d3ef03c46bcc9e5f9e36e68a0a1f67b9b300823170b48c9b8d2db4625afd885f1d024905db1dffd9fc49  libunwind-5.0.1.src.tar.xz"
+sha512sums="6c0f7a286c1ffa46769685ee36604cd90ed40470e1c3d3ef03c46bcc9e5f9e36e68a0a1f67b9b300823170b48c9b8d2db4625afd885f1d024905db1dffd9fc49  libunwind-5.0.1.src.tar.xz
+16ebe254c1aa72e6ab350f97a6c4dbfcedb6c014452f8d483b082269ce3be9ef3e96c0c6edc22cc1bac70b59c119b362729ac0d51539f3e255250a86b688f726  ppc64le-support.patch"
diff --git a/community/llvm-libunwind/ppc64le-support.patch b/community/llvm-libunwind/ppc64le-support.patch
new file mode 100644
index 0000000000..0f782200c8
--- /dev/null
+++ b/community/llvm-libunwind/ppc64le-support.patch
@@ -0,0 +1,1503 @@
+--- a/src/AddressSpace.hpp
++++ b/src/AddressSpace.hpp
+@@ -608,6 +608,13 @@
+   RemoteAddressSpace<Pointer32<BigEndian>> oas;
+ };
+ 
++/// unw_addr_space_ppc is the concrete instance that a unw_addr_space_t points
++/// to when examining a 64-bit PowerPC process.
++struct unw_addr_space_ppc64 : public unw_addr_space {
++  unw_addr_space_ppc64(task_t task) : oas(task) {}
++  RemoteAddressSpace<Pointer64<LittleEndian>> oas;
++};
++
+ #endif // UNW_REMOTE
+ 
+ } // namespace libunwind
+--- a/src/Registers.hpp
++++ b/src/Registers.hpp
+@@ -1046,6 +1046,646 @@
+ }
+ #endif // _LIBUNWIND_TARGET_PPC
+ 
++#if defined(_LIBUNWIND_TARGET_PPC64)
++/// Registers_ppc64 holds the register state of a thread in a 64-bit PowerPC
++/// process.
++class _LIBUNWIND_HIDDEN Registers_ppc64 {
++public:
++  Registers_ppc64();
++  Registers_ppc64(const void *registers);
++
++  bool        validRegister(int num) const;
++  uint64_t    getRegister(int num) const;
++  void        setRegister(int num, uint64_t value);
++  bool        validFloatRegister(int num) const;
++  double      getFloatRegister(int num) const;
++  void        setFloatRegister(int num, double value);
++  bool        validVectorRegister(int num) const;
++  v128        getVectorRegister(int num) const;
++  void        setVectorRegister(int num, v128 value);
++  const char *getRegisterName(int num);
++  void        jumpto();
++  static int  lastDwarfRegNum() { return 116; }
++
++  uint64_t  getSP() const         { return _registers.__r1; }
++  void      setSP(uint64_t value) { _registers.__r1 = value; }
++  uint64_t  getIP() const         { return _registers.__srr0; }
++  void      setIP(uint64_t value) { _registers.__srr0 = value; }
++
++private:
++  struct ppc64_thread_state_t {
++    uint64_t __srr0; /* Instruction address register (PC) */
++    uint64_t __srr1; /* Machine state register (supervisor) */
++    uint64_t __r0;
++    uint64_t __r1;
++    uint64_t __r2;
++    uint64_t __r3;
++    uint64_t __r4;
++    uint64_t __r5;
++    uint64_t __r6;
++    uint64_t __r7;
++    uint64_t __r8;
++    uint64_t __r9;
++    uint64_t __r10;
++    uint64_t __r11;
++    uint64_t __r12;
++    uint64_t __r13;
++    uint64_t __r14;
++    uint64_t __r15;
++    uint64_t __r16;
++    uint64_t __r17;
++    uint64_t __r18;
++    uint64_t __r19;
++    uint64_t __r20;
++    uint64_t __r21;
++    uint64_t __r22;
++    uint64_t __r23;
++    uint64_t __r24;
++    uint64_t __r25;
++    uint64_t __r26;
++    uint64_t __r27;
++    uint64_t __r28;
++    uint64_t __r29;
++    uint64_t __r30;
++    uint64_t __r31;
++    uint64_t __cr;     /* Condition register */
++    uint64_t __xer;    /* User's integer exception register */
++    uint64_t __lr;     /* Link register */
++    uint64_t __ctr;    /* Count register */
++    uint64_t __vrsave; /* Vector Save Register */
++  };
++
++  union ppc64_vsr_t {
++    struct asfloat_s {
++      double f;
++      uint64_t v2;
++    } asfloat;
++    v128 v;
++  };
++
++  ppc64_thread_state_t _registers;
++  ppc64_vsr_t _vectorScalarRegisters[64];
++
++  static int getVectorRegNum(int num);
++};
++
++inline Registers_ppc64::Registers_ppc64(const void *registers) {
++  static_assert((check_fit<Registers_ppc64, unw_context_t>::does_fit),
++                "ppc64 registers do not fit into unw_context_t");
++  memcpy(&_registers, static_cast<const uint8_t *>(registers),
++         sizeof(_registers));
++  static_assert(sizeof(_registers) == 312,
++                "expected vector scalar register offset to be 312");
++  memcpy(&_vectorScalarRegisters,
++         static_cast<const uint8_t *>(registers) + sizeof(_registers),
++         sizeof(_vectorScalarRegisters));
++  static_assert(sizeof(_registers) +
++                sizeof(_vectorScalarRegisters) == 1336,
++                "expected vector register offset to be 1336 bytes");
++}
++
++inline Registers_ppc64::Registers_ppc64() {
++  memset(&_registers, 0, sizeof(_registers));
++  memset(&_vectorScalarRegisters, 0, sizeof(_vectorScalarRegisters));
++}
++
++inline bool Registers_ppc64::validRegister(int regNum) const {
++  switch (regNum) {
++  case UNW_REG_IP:
++  case UNW_REG_SP:
++  case UNW_PPC64_XER:
++  case UNW_PPC64_LR:
++  case UNW_PPC64_CTR:
++  case UNW_PPC64_VRSAVE:
++      return true;
++  }
++
++  if (regNum >= UNW_PPC64_R0 && regNum <= UNW_PPC64_R31)
++    return true;
++  if (regNum >= UNW_PPC64_CR0 && regNum <= UNW_PPC64_CR7)
++    return true;
++
++  return false;
++}
++
++inline uint64_t Registers_ppc64::getRegister(int regNum) const {
++  switch (regNum) {
++  case UNW_REG_IP:
++    return _registers.__srr0;
++  case UNW_PPC64_R0:
++    return _registers.__r0;
++  case UNW_PPC64_R1:
++  case UNW_REG_SP:
++    return _registers.__r1;
++  case UNW_PPC64_R2:
++    return _registers.__r2;
++  case UNW_PPC64_R3:
++    return _registers.__r3;
++  case UNW_PPC64_R4:
++    return _registers.__r4;
++  case UNW_PPC64_R5:
++    return _registers.__r5;
++  case UNW_PPC64_R6:
++    return _registers.__r6;
++  case UNW_PPC64_R7:
++    return _registers.__r7;
++  case UNW_PPC64_R8:
++    return _registers.__r8;
++  case UNW_PPC64_R9:
++    return _registers.__r9;
++  case UNW_PPC64_R10:
++    return _registers.__r10;
++  case UNW_PPC64_R11:
++    return _registers.__r11;
++  case UNW_PPC64_R12:
++    return _registers.__r12;
++  case UNW_PPC64_R13:
++    return _registers.__r13;
++  case UNW_PPC64_R14:
++    return _registers.__r14;
++  case UNW_PPC64_R15:
++    return _registers.__r15;
++  case UNW_PPC64_R16:
++    return _registers.__r16;
++  case UNW_PPC64_R17:
++    return _registers.__r17;
++  case UNW_PPC64_R18:
++    return _registers.__r18;
++  case UNW_PPC64_R19:
++    return _registers.__r19;
++  case UNW_PPC64_R20:
++    return _registers.__r20;
++  case UNW_PPC64_R21:
++    return _registers.__r21;
++  case UNW_PPC64_R22:
++    return _registers.__r22;
++  case UNW_PPC64_R23:
++    return _registers.__r23;
++  case UNW_PPC64_R24:
++    return _registers.__r24;
++  case UNW_PPC64_R25:
++    return _registers.__r25;
++  case UNW_PPC64_R26:
++    return _registers.__r26;
++  case UNW_PPC64_R27:
++    return _registers.__r27;
++  case UNW_PPC64_R28:
++    return _registers.__r28;
++  case UNW_PPC64_R29:
++    return _registers.__r29;
++  case UNW_PPC64_R30:
++    return _registers.__r30;
++  case UNW_PPC64_R31:
++    return _registers.__r31;
++  case UNW_PPC64_CR0:
++    return (_registers.__cr & 0xF0000000);
++  case UNW_PPC64_CR1:
++    return (_registers.__cr & 0x0F000000);
++  case UNW_PPC64_CR2:
++    return (_registers.__cr & 0x00F00000);
++  case UNW_PPC64_CR3:
++    return (_registers.__cr & 0x000F0000);
++  case UNW_PPC64_CR4:
++    return (_registers.__cr & 0x0000F000);
++  case UNW_PPC64_CR5:
++    return (_registers.__cr & 0x00000F00);
++  case UNW_PPC64_CR6:
++    return (_registers.__cr & 0x000000F0);
++  case UNW_PPC64_CR7:
++    return (_registers.__cr & 0x0000000F);
++  case UNW_PPC64_XER:
++    return _registers.__xer;
++  case UNW_PPC64_LR:
++    return _registers.__lr;
++  case UNW_PPC64_CTR:
++    return _registers.__ctr;
++  case UNW_PPC64_VRSAVE:
++    return _registers.__vrsave;
++  }
++  _LIBUNWIND_ABORT("unsupported ppc64 register");
++}
++
++inline void Registers_ppc64::setRegister(int regNum, uint64_t value) {
++  switch (regNum) {
++  case UNW_REG_IP:
++    _registers.__srr0 = value;
++    return;
++  case UNW_PPC64_R0:
++    _registers.__r0 = value;
++    return;
++  case UNW_PPC64_R1:
++  case UNW_REG_SP:
++    _registers.__r1 = value;
++    return;
++  case UNW_PPC64_R2:
++    _registers.__r2 = value;
++    return;
++  case UNW_PPC64_R3:
++    _registers.__r3 = value;
++    return;
++  case UNW_PPC64_R4:
++    _registers.__r4 = value;
++    return;
++  case UNW_PPC64_R5:
++    _registers.__r5 = value;
++    return;
++  case UNW_PPC64_R6:
++    _registers.__r6 = value;
++    return;
++  case UNW_PPC64_R7:
++    _registers.__r7 = value;
++    return;
++  case UNW_PPC64_R8:
++    _registers.__r8 = value;
++    return;
++  case UNW_PPC64_R9:
++    _registers.__r9 = value;
++    return;
++  case UNW_PPC64_R10:
++    _registers.__r10 = value;
++    return;
++  case UNW_PPC64_R11:
++    _registers.__r11 = value;
++    return;
++  case UNW_PPC64_R12:
++    _registers.__r12 = value;
++    return;
++  case UNW_PPC64_R13:
++    _registers.__r13 = value;
++    return;
++  case UNW_PPC64_R14:
++    _registers.__r14 = value;
++    return;
++  case UNW_PPC64_R15:
++    _registers.__r15 = value;
++    return;
++  case UNW_PPC64_R16:
++    _registers.__r16 = value;
++    return;
++  case UNW_PPC64_R17:
++    _registers.__r17 = value;
++    return;
++  case UNW_PPC64_R18:
++    _registers.__r18 = value;
++    return;
++  case UNW_PPC64_R19:
++    _registers.__r19 = value;
++    return;
++  case UNW_PPC64_R20:
++    _registers.__r20 = value;
++    return;
++  case UNW_PPC64_R21:
++    _registers.__r21 = value;
++    return;
++  case UNW_PPC64_R22:
++    _registers.__r22 = value;
++    return;
++  case UNW_PPC64_R23:
++    _registers.__r23 = value;
++    return;
++  case UNW_PPC64_R24:
++    _registers.__r24 = value;
++    return;
++  case UNW_PPC64_R25:
++    _registers.__r25 = value;
++    return;
++  case UNW_PPC64_R26:
++    _registers.__r26 = value;
++    return;
++  case UNW_PPC64_R27:
++    _registers.__r27 = value;
++    return;
++  case UNW_PPC64_R28:
++    _registers.__r28 = value;
++    return;
++  case UNW_PPC64_R29:
++    _registers.__r29 = value;
++    return;
++  case UNW_PPC64_R30:
++    _registers.__r30 = value;
++    return;
++  case UNW_PPC64_R31:
++    _registers.__r31 = value;
++    return;
++  case UNW_PPC64_CR0:
++    _registers.__cr &= 0x0FFFFFFF;
++    _registers.__cr |= (value & 0xF0000000);
++    return;
++  case UNW_PPC64_CR1:
++    _registers.__cr &= 0xF0FFFFFF;
++    _registers.__cr |= (value & 0x0F000000);
++    return;
++  case UNW_PPC64_CR2:
++    _registers.__cr &= 0xFF0FFFFF;
++    _registers.__cr |= (value & 0x00F00000);
++    return;
++  case UNW_PPC64_CR3:
++    _registers.__cr &= 0xFFF0FFFF;
++    _registers.__cr |= (value & 0x000F0000);
++    return;
++  case UNW_PPC64_CR4:
++    _registers.__cr &= 0xFFFF0FFF;
++    _registers.__cr |= (value & 0x0000F000);
++    return;
++  case UNW_PPC64_CR5:
++    _registers.__cr &= 0xFFFFF0FF;
++    _registers.__cr |= (value & 0x00000F00);
++    return;
++  case UNW_PPC64_CR6:
++    _registers.__cr &= 0xFFFFFF0F;
++    _registers.__cr |= (value & 0x000000F0);
++    return;
++  case UNW_PPC64_CR7:
++    _registers.__cr &= 0xFFFFFFF0;
++    _registers.__cr |= (value & 0x0000000F);
++    return;
++  case UNW_PPC64_XER:
++    _registers.__xer = value;
++    return;
++  case UNW_PPC64_LR:
++    _registers.__lr = value;
++    return;
++  case UNW_PPC64_CTR:
++    _registers.__ctr = value;
++    return;
++  case UNW_PPC64_VRSAVE:
++    _registers.__vrsave = value;
++    return;
++  }
++  _LIBUNWIND_ABORT("unsupported ppc64 register");
++}
++
++inline bool Registers_ppc64::validFloatRegister(int regNum) const {
++  return regNum >= UNW_PPC64_F0 && regNum <= UNW_PPC64_F31;
++}
++
++inline double Registers_ppc64::getFloatRegister(int regNum) const {
++  assert(validFloatRegister(regNum));
++  return _vectorScalarRegisters[regNum - UNW_PPC64_F0].asfloat.f;
++}
++
++inline void Registers_ppc64::setFloatRegister(int regNum, double value) {
++  assert(validFloatRegister(regNum));
++   _vectorScalarRegisters[regNum - UNW_PPC64_F0].asfloat.f = value;
++}
++
++inline bool Registers_ppc64::validVectorRegister(int regNum) const {
++#ifdef PPC64_HAS_VMX
++  if (regNum >= UNW_PPC64_VS0 && regNum <= UNW_PPC64_VS31)
++    return true;
++  if (regNum >= UNW_PPC64_VS32 && regNum <= UNW_PPC64_VS63)
++    return true;
++#else
++  if (regNum >= UNW_PPC64_V0 && regNum <= UNW_PPC64_V31)
++    return true;
++#endif
++return false;
++}
++
++inline int Registers_ppc64::getVectorRegNum(int num)
++{
++  if (num >= UNW_PPC64_VS0 && num <= UNW_PPC64_VS31)
++    return num - UNW_PPC64_VS0;
++  else
++    return num - UNW_PPC64_VS32 + 32;
++}
++
++inline v128 Registers_ppc64::getVectorRegister(int regNum) const {
++  assert(validVectorRegister(regNum));
++  return _vectorScalarRegisters[getVectorRegNum(regNum)].v;
++}
++
++inline void Registers_ppc64::setVectorRegister(int regNum, v128 value) {
++  assert(validVectorRegister(regNum));
++  _vectorScalarRegisters[getVectorRegNum(regNum)].v = value;
++}
++
++inline const char *Registers_ppc64::getRegisterName(int regNum) {
++  switch (regNum) {
++  case UNW_REG_IP:
++    return "ip";
++  case UNW_REG_SP:
++    return "sp";
++  case UNW_PPC64_R0:
++    return "r0";
++  case UNW_PPC64_R1:
++    return "r1";
++  case UNW_PPC64_R2:
++    return "r2";
++  case UNW_PPC64_R3:
++    return "r3";
++  case UNW_PPC64_R4:
++    return "r4";
++  case UNW_PPC64_R5:
++    return "r5";
++  case UNW_PPC64_R6:
++    return "r6";
++  case UNW_PPC64_R7:
++    return "r7";
++  case UNW_PPC64_R8:
++    return "r8";
++  case UNW_PPC64_R9:
++    return "r9";
++  case UNW_PPC64_R10:
++    return "r10";
++  case UNW_PPC64_R11:
++    return "r11";
++  case UNW_PPC64_R12:
++    return "r12";
++  case UNW_PPC64_R13:
++    return "r13";
++  case UNW_PPC64_R14:
++    return "r14";
++  case UNW_PPC64_R15:
++    return "r15";
++  case UNW_PPC64_R16:
++    return "r16";
++  case UNW_PPC64_R17:
++    return "r17";
++  case UNW_PPC64_R18:
++    return "r18";
++  case UNW_PPC64_R19:
++    return "r19";
++  case UNW_PPC64_R20:
++    return "r20";
++  case UNW_PPC64_R21:
++    return "r21";
++  case UNW_PPC64_R22:
++    return "r22";
++  case UNW_PPC64_R23:
++    return "r23";
++  case UNW_PPC64_R24:
++    return "r24";
++  case UNW_PPC64_R25:
++    return "r25";
++  case UNW_PPC64_R26:
++    return "r26";
++  case UNW_PPC64_R27:
++    return "r27";
++  case UNW_PPC64_R28:
++    return "r28";
++  case UNW_PPC64_R29:
++    return "r29";
++  case UNW_PPC64_R30:
++    return "r30";
++  case UNW_PPC64_R31:
++    return "r31";
++  case UNW_PPC64_CR0:
++    return "cr0";
++  case UNW_PPC64_CR1:
++    return "cr1";
++  case UNW_PPC64_CR2:
++    return "cr2";
++  case UNW_PPC64_CR3:
++    return "cr3";
++  case UNW_PPC64_CR4:
++    return "cr4";
++  case UNW_PPC64_CR5:
++    return "cr5";
++  case UNW_PPC64_CR6:
++    return "cr6";
++  case UNW_PPC64_CR7:
++    return "cr7";
++  case UNW_PPC64_XER:
++    return "xer";
++  case UNW_PPC64_LR:
++    return "lr";
++  case UNW_PPC64_CTR:
++    return "ctr";
++  case UNW_PPC64_VRSAVE:
++    return "vrsave";
++  case UNW_PPC64_F0:
++    return "fp0";
++  case UNW_PPC64_F1:
++    return "fp1";
++  case UNW_PPC64_F2:
++    return "fp2";
++  case UNW_PPC64_F3:
++    return "fp3";
++  case UNW_PPC64_F4:
++    return "fp4";
++  case UNW_PPC64_F5:
++    return "fp5";
++  case UNW_PPC64_F6:
++    return "fp6";
++  case UNW_PPC64_F7:
++    return "fp7";
++  case UNW_PPC64_F8:
++    return "fp8";
++  case UNW_PPC64_F9:
++    return "fp9";
++  case UNW_PPC64_F10:
++    return "fp10";
++  case UNW_PPC64_F11:
++    return "fp11";
++  case UNW_PPC64_F12:
++    return "fp12";
++  case UNW_PPC64_F13:
++    return "fp13";
++  case UNW_PPC64_F14:
++    return "fp14";
++  case UNW_PPC64_F15:
++    return "fp15";
++  case UNW_PPC64_F16:
++    return "fp16";
++  case UNW_PPC64_F17:
++    return "fp17";
++  case UNW_PPC64_F18:
++    return "fp18";
++  case UNW_PPC64_F19:
++    return "fp19";
++  case UNW_PPC64_F20:
++    return "fp20";
++  case UNW_PPC64_F21:
++    return "fp21";
++  case UNW_PPC64_F22:
++    return "fp22";
++  case UNW_PPC64_F23:
++    return "fp23";
++  case UNW_PPC64_F24:
++    return "fp24";
++  case UNW_PPC64_F25:
++    return "fp25";
++  case UNW_PPC64_F26:
++    return "fp26";
++  case UNW_PPC64_F27:
++    return "fp27";
++  case UNW_PPC64_F28:
++    return "fp28";
++  case UNW_PPC64_F29:
++    return "fp29";
++  case UNW_PPC64_F30:
++    return "fp30";
++  case UNW_PPC64_F31:
++    return "fp31";
++  case UNW_PPC64_V0:
++    return "v0";
++  case UNW_PPC64_V1:
++    return "v1";
++  case UNW_PPC64_V2:
++    return "v2";
++  case UNW_PPC64_V3:
++    return "v3";
++  case UNW_PPC64_V4:
++    return "v4";
++  case UNW_PPC64_V5:
++    return "v5";
++  case UNW_PPC64_V6:
++    return "v6";
++  case UNW_PPC64_V7:
++    return "v7";
++  case UNW_PPC64_V8:
++    return "v8";
++  case UNW_PPC64_V9:
++    return "v9";
++  case UNW_PPC64_V10:
++    return "v10";
++  case UNW_PPC64_V11:
++    return "v11";
++  case UNW_PPC64_V12:
++    return "v12";
++  case UNW_PPC64_V13:
++    return "v13";
++  case UNW_PPC64_V14:
++    return "v14";
++  case UNW_PPC64_V15:
++    return "v15";
++  case UNW_PPC64_V16:
++    return "v16";
++  case UNW_PPC64_V17:
++    return "v17";
++  case UNW_PPC64_V18:
++    return "v18";
++  case UNW_PPC64_V19:
++    return "v19";
++  case UNW_PPC64_V20:
++    return "v20";
++  case UNW_PPC64_V21:
++    return "v21";
++  case UNW_PPC64_V22:
++    return "v22";
++  case UNW_PPC64_V23:
++    return "v23";
++  case UNW_PPC64_V24:
++    return "v24";
++  case UNW_PPC64_V25:
++    return "v25";
++  case UNW_PPC64_V26:
++    return "v26";
++  case UNW_PPC64_V27:
++    return "v27";
++  case UNW_PPC64_V28:
++    return "v28";
++  case UNW_PPC64_V29:
++    return "v29";
++  case UNW_PPC64_V30:
++    return "v30";
++  case UNW_PPC64_V31:
++    return "v31";
++  }
++  return "unknown register";
++}
++#endif // _LIBUNWIND_TARGET_PPC64
+ 
+ #if defined(_LIBUNWIND_TARGET_AARCH64)
+ /// Registers_arm64  holds the register state of a thread in a 64-bit arm
+--- a/src/UnwindCursor.hpp
++++ b/src/UnwindCursor.hpp
+@@ -507,6 +507,12 @@
+   }
+ #endif
+ 
++#if defined(_LIBUNWIND_TARGET_PPC64)
++  int stepWithCompactEncoding(Registers_ppc64 &) {
++    return UNW_EINVAL;
++  }
++#endif
++
+ #if defined(_LIBUNWIND_TARGET_AARCH64)
+   int stepWithCompactEncoding(Registers_arm64 &) {
+     return CompactUnwinder_arm64<A>::stepWithCompactEncoding(
+@@ -547,6 +553,12 @@
+   }
+ #endif
+ 
++#if defined(_LIBUNWIND_TARGET_PPC64)
++  bool compactSaysUseDwarf(Registers_ppc64 &, uint32_t *) const {
++    return true;
++  }
++#endif
++
+ #if defined(_LIBUNWIND_TARGET_AARCH64)
+   bool compactSaysUseDwarf(Registers_arm64 &, uint32_t *offset) const {
+     if ((_info.format & UNWIND_ARM64_MODE_MASK) == UNWIND_ARM64_MODE_DWARF) {
+@@ -579,6 +591,12 @@
+ 
+ #if defined(_LIBUNWIND_TARGET_PPC)
+   compact_unwind_encoding_t dwarfEncoding(Registers_ppc &) const {
++    return 0;
++  }
++#endif
++
++#if defined(_LIBUNWIND_TARGET_PPC64)
++  compact_unwind_encoding_t dwarfEncoding(Registers_ppc64 &) const {
+     return 0;
+   }
+ #endif
+--- a/src/UnwindRegistersRestore.S
++++ b/src/UnwindRegistersRestore.S
+@@ -92,6 +92,271 @@
+   pop    %rdi      # rdi was saved here earlier
+   ret            # rip was saved here
+ 
++#elif defined(__powerpc64__)
++
++DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind15Registers_ppc646jumptoEv)
++//
++// void libunwind::Registers_ppc64::jumpto()
++//
++// On entry:
++//  thread_state pointer is in r3
++//
++
++// load register (GPR)
++#define PPC64_LR(n) \
++  ld    %r##n, (8 * (n + 2))(%r3)
++
++  // restore integral registers
++  // skip r0 for now
++  // skip r1 for now
++  PPC64_LR(2)
++  // skip r3 for now
++  // skip r4 for now
++  // skip r5 for now
++  PPC64_LR(6)
++  PPC64_LR(7)
++  PPC64_LR(8)
++  PPC64_LR(9)
++  PPC64_LR(10)
++  PPC64_LR(11)
++  PPC64_LR(12)
++  PPC64_LR(13)
++  PPC64_LR(14)
++  PPC64_LR(15)
++  PPC64_LR(16)
++  PPC64_LR(17)
++  PPC64_LR(18)
++  PPC64_LR(19)
++  PPC64_LR(20)
++  PPC64_LR(21)
++  PPC64_LR(22)
++  PPC64_LR(23)
++  PPC64_LR(24)
++  PPC64_LR(25)
++  PPC64_LR(26)
++  PPC64_LR(27)
++  PPC64_LR(28)
++  PPC64_LR(29)
++  PPC64_LR(30)
++  PPC64_LR(31)
++
++#ifdef PPC64_HAS_VMX
++
++  // restore VS registers
++  // (note that this also restores floating point registers and V registers,
++  // because part of VS is mapped to these registers)
++
++  addi  %r4, %r3, PPC64_OFFS_FP
++
++// load VS register
++#define PPC64_LVS(n)         \
++  lxvd2x  %vs##n, 0, %r4    ;\
++  addi    %r4, %r4, 16
++
++  // restore the first 32 VS regs (and also all floating point regs)
++  PPC64_LVS(0)
++  PPC64_LVS(1)
++  PPC64_LVS(2)
++  PPC64_LVS(3)
++  PPC64_LVS(4)
++  PPC64_LVS(5)
++  PPC64_LVS(6)
++  PPC64_LVS(7)
++  PPC64_LVS(8)
++  PPC64_LVS(9)
++  PPC64_LVS(10)
++  PPC64_LVS(11)
++  PPC64_LVS(12)
++  PPC64_LVS(13)
++  PPC64_LVS(14)
++  PPC64_LVS(15)
++  PPC64_LVS(16)
++  PPC64_LVS(17)
++  PPC64_LVS(18)
++  PPC64_LVS(19)
++  PPC64_LVS(20)
++  PPC64_LVS(21)
++  PPC64_LVS(22)
++  PPC64_LVS(23)
++  PPC64_LVS(24)
++  PPC64_LVS(25)
++  PPC64_LVS(26)
++  PPC64_LVS(27)
++  PPC64_LVS(28)
++  PPC64_LVS(29)
++  PPC64_LVS(30)
++  PPC64_LVS(31)
++
++  // use VRSAVE to conditionally restore the remaining VS regs,
++  // that are where the V regs are mapped
++
++  ld    %r5, PPC64_OFFS_VRSAVE(%r3)   // test VRsave
++  cmpwi %r5, 0
++  beq   Lnovec
++
++// conditionally load VS
++#define PPC64_CLVS_BOTTOM(n)               \
++  beq    Ldone##n                         ;\
++  addi   %r4, %r3, PPC64_OFFS_FP + n * 16 ;\
++  lxvd2x %vs##n, 0, %r4                   ;\
++Ldone##n:
++
++#define PPC64_CLVSl(n)           \
++  andis. %r0, %r5, (1<<(47-n))  ;\
++PPC64_CLVS_BOTTOM(n)
++
++#define PPC64_CLVSh(n)           \
++  andi.  %r0, %r5, (1<<(63-n))  ;\
++PPC64_CLVS_BOTTOM(n)
++
++  PPC64_CLVSl(32)
++  PPC64_CLVSl(33)
++  PPC64_CLVSl(34)
++  PPC64_CLVSl(35)
++  PPC64_CLVSl(36)
++  PPC64_CLVSl(37)
++  PPC64_CLVSl(38)
++  PPC64_CLVSl(39)
++  PPC64_CLVSl(40)
++  PPC64_CLVSl(41)
++  PPC64_CLVSl(42)
++  PPC64_CLVSl(43)
++  PPC64_CLVSl(44)
++  PPC64_CLVSl(45)
++  PPC64_CLVSl(46)
++  PPC64_CLVSl(47)
++  PPC64_CLVSh(48)
++  PPC64_CLVSh(49)
++  PPC64_CLVSh(50)
++  PPC64_CLVSh(51)
++  PPC64_CLVSh(52)
++  PPC64_CLVSh(53)
++  PPC64_CLVSh(54)
++  PPC64_CLVSh(55)
++  PPC64_CLVSh(56)
++  PPC64_CLVSh(57)
++  PPC64_CLVSh(58)
++  PPC64_CLVSh(59)
++  PPC64_CLVSh(60)
++  PPC64_CLVSh(61)
++  PPC64_CLVSh(62)
++  PPC64_CLVSh(63)
++
++#else
++
++// load FP register
++#define PPC64_LF(n) \
++  lfd   %f##n, (PPC64_OFFS_FP + n * 16)(%r3)
++
++  // restore float registers
++  PPC64_LF(0)
++  PPC64_LF(1)
++  PPC64_LF(2)
++  PPC64_LF(3)
++  PPC64_LF(4)
++  PPC64_LF(5)
++  PPC64_LF(6)
++  PPC64_LF(7)
++  PPC64_LF(8)
++  PPC64_LF(9)
++  PPC64_LF(10)
++  PPC64_LF(11)
++  PPC64_LF(12)
++  PPC64_LF(13)
++  PPC64_LF(14)
++  PPC64_LF(15)
++  PPC64_LF(16)
++  PPC64_LF(17)
++  PPC64_LF(18)
++  PPC64_LF(19)
++  PPC64_LF(20)
++  PPC64_LF(21)
++  PPC64_LF(22)
++  PPC64_LF(23)
++  PPC64_LF(24)
++  PPC64_LF(25)
++  PPC64_LF(26)
++  PPC64_LF(27)
++  PPC64_LF(28)
++  PPC64_LF(29)
++  PPC64_LF(30)
++  PPC64_LF(31)
++
++  // restore vector registers if any are in use
++  ld    %r5, PPC64_OFFS_VRSAVE(%r3)   // test VRsave
++  cmpwi %r5, 0
++  beq   Lnovec
++
++  subi  %r4, %r1, 16
++  // r4 is now a 16-byte aligned pointer into the red zone
++  // the _vectorScalarRegisters may not be 16-byte aligned
++  // so copy via red zone temp buffer
++
++#define PPC64_CLV_UNALIGNED_BOTTOM(n)            \
++  beq    Ldone##n                               ;\
++  ld     %r0, (PPC64_OFFS_V + n * 16)(%r3)      ;\
++  std    %r0, 0(%r4)                            ;\
++  ld     %r0, (PPC64_OFFS_V + n * 16 + 8)(%r3)  ;\
++  std    %r0, 8(%r4)                            ;\
++  lvx    %v##n, 0, %r4                          ;\
++Ldone  ## n:
++
++#define PPC64_CLV_UNALIGNEDl(n)  \
++  andis. %r0, %r5, (1<<(15-n))  ;\
++PPC64_CLV_UNALIGNED_BOTTOM(n)
++
++#define PPC64_CLV_UNALIGNEDh(n)  \
++  andi.  %r0, %r5, (1<<(31-n))  ;\
++PPC64_CLV_UNALIGNED_BOTTOM(n)
++
++  PPC64_CLV_UNALIGNEDl(0)
++  PPC64_CLV_UNALIGNEDl(1)
++  PPC64_CLV_UNALIGNEDl(2)
++  PPC64_CLV_UNALIGNEDl(3)
++  PPC64_CLV_UNALIGNEDl(4)
++  PPC64_CLV_UNALIGNEDl(5)
++  PPC64_CLV_UNALIGNEDl(6)
++  PPC64_CLV_UNALIGNEDl(7)
++  PPC64_CLV_UNALIGNEDl(8)
++  PPC64_CLV_UNALIGNEDl(9)
++  PPC64_CLV_UNALIGNEDl(10)
++  PPC64_CLV_UNALIGNEDl(11)
++  PPC64_CLV_UNALIGNEDl(12)
++  PPC64_CLV_UNALIGNEDl(13)
++  PPC64_CLV_UNALIGNEDl(14)
++  PPC64_CLV_UNALIGNEDl(15)
++  PPC64_CLV_UNALIGNEDh(16)
++  PPC64_CLV_UNALIGNEDh(17)
++  PPC64_CLV_UNALIGNEDh(18)
++  PPC64_CLV_UNALIGNEDh(19)
++  PPC64_CLV_UNALIGNEDh(20)
++  PPC64_CLV_UNALIGNEDh(21)
++  PPC64_CLV_UNALIGNEDh(22)
++  PPC64_CLV_UNALIGNEDh(23)
++  PPC64_CLV_UNALIGNEDh(24)
++  PPC64_CLV_UNALIGNEDh(25)
++  PPC64_CLV_UNALIGNEDh(26)
++  PPC64_CLV_UNALIGNEDh(27)
++  PPC64_CLV_UNALIGNEDh(28)
++  PPC64_CLV_UNALIGNEDh(29)
++  PPC64_CLV_UNALIGNEDh(30)
++  PPC64_CLV_UNALIGNEDh(31)
++
++#endif
++
++Lnovec:
++  ld    %r0, PPC64_OFFS_CR(%r3)
++  mtcr  %r0
++  ld    %r0, PPC64_OFFS_SRR0(%r3)
++  mtctr %r0
++
++  PPC64_LR(0)
++  PPC64_LR(5)
++  PPC64_LR(4)
++  PPC64_LR(1)
++  PPC64_LR(3)
++  bctr
++
+ 
+ #elif defined(__ppc__)
+ 
+--- a/src/UnwindRegistersSave.S
++++ b/src/UnwindRegistersSave.S
+@@ -96,6 +96,238 @@
+ DEFINE_LIBUNWIND_FUNCTION(unw_getcontext)
+   teq $0, $0
+ 
++
++#elif defined(__powerpc64__)
++
++//
++// extern int unw_getcontext(unw_context_t* thread_state)
++//
++// On entry:
++//  thread_state pointer is in r3
++//
++DEFINE_LIBUNWIND_FUNCTION(unw_getcontext)
++
++// store register (GPR)
++#define PPC64_STR(n) \
++  std   %r##n, (8 * (n + 2))(%r3)
++
++  // save GPRs
++  PPC64_STR(0)
++  mflr  %r0
++  std   %r0, PPC64_OFFS_SRR0(%r3) // store lr as ssr0
++  PPC64_STR(1)
++  PPC64_STR(2)
++  PPC64_STR(3)
++  PPC64_STR(4)
++  PPC64_STR(5)
++  PPC64_STR(6)
++  PPC64_STR(7)
++  PPC64_STR(8)
++  PPC64_STR(9)
++  PPC64_STR(10)
++  PPC64_STR(11)
++  PPC64_STR(12)
++  PPC64_STR(13)
++  PPC64_STR(14)
++  PPC64_STR(15)
++  PPC64_STR(16)
++  PPC64_STR(17)
++  PPC64_STR(18)
++  PPC64_STR(19)
++  PPC64_STR(20)
++  PPC64_STR(21)
++  PPC64_STR(22)
++  PPC64_STR(23)
++  PPC64_STR(24)
++  PPC64_STR(25)
++  PPC64_STR(26)
++  PPC64_STR(27)
++  PPC64_STR(28)
++  PPC64_STR(29)
++  PPC64_STR(30)
++  PPC64_STR(31)
++
++  mfcr  %r0
++  std   %r0,  PPC64_OFFS_CR(%r3)
++  mfxer %r0
++  std   %r0,  PPC64_OFFS_XER(%r3)
++  mflr  %r0
++  std   %r0,  PPC64_OFFS_LR(%r3)
++  mfctr %r0
++  std   %r0,  PPC64_OFFS_CTR(%r3)
++  mfvrsave    %r0
++  std   %r0,  PPC64_OFFS_VRSAVE(%r3)
++
++#ifdef PPC64_HAS_VMX
++  // save VS registers
++  // (note that this also saves floating point registers and V registers,
++  // because part of VS is mapped to these registers)
++
++  addi  %r4, %r3, PPC64_OFFS_FP
++
++// store VS register
++#define PPC64_STVS(n)      \
++  stxvd2x %vs##n, 0, %r4  ;\
++  addi    %r4, %r4, 16
++
++  PPC64_STVS(0)
++  PPC64_STVS(1)
++  PPC64_STVS(2)
++  PPC64_STVS(3)
++  PPC64_STVS(4)
++  PPC64_STVS(5)
++  PPC64_STVS(6)
++  PPC64_STVS(7)
++  PPC64_STVS(8)
++  PPC64_STVS(9)
++  PPC64_STVS(10)
++  PPC64_STVS(11)
++  PPC64_STVS(12)
++  PPC64_STVS(13)
++  PPC64_STVS(14)
++  PPC64_STVS(15)
++  PPC64_STVS(16)
++  PPC64_STVS(17)
++  PPC64_STVS(18)
++  PPC64_STVS(19)
++  PPC64_STVS(20)
++  PPC64_STVS(21)
++  PPC64_STVS(22)
++  PPC64_STVS(23)
++  PPC64_STVS(24)
++  PPC64_STVS(25)
++  PPC64_STVS(26)
++  PPC64_STVS(27)
++  PPC64_STVS(28)
++  PPC64_STVS(29)
++  PPC64_STVS(30)
++  PPC64_STVS(31)
++  PPC64_STVS(32)
++  PPC64_STVS(33)
++  PPC64_STVS(34)
++  PPC64_STVS(35)
++  PPC64_STVS(36)
++  PPC64_STVS(37)
++  PPC64_STVS(38)
++  PPC64_STVS(39)
++  PPC64_STVS(40)
++  PPC64_STVS(41)
++  PPC64_STVS(42)
++  PPC64_STVS(43)
++  PPC64_STVS(44)
++  PPC64_STVS(45)
++  PPC64_STVS(46)
++  PPC64_STVS(47)
++  PPC64_STVS(48)
++  PPC64_STVS(49)
++  PPC64_STVS(50)
++  PPC64_STVS(51)
++  PPC64_STVS(52)
++  PPC64_STVS(53)
++  PPC64_STVS(54)
++  PPC64_STVS(55)
++  PPC64_STVS(56)
++  PPC64_STVS(57)
++  PPC64_STVS(58)
++  PPC64_STVS(59)
++  PPC64_STVS(60)
++  PPC64_STVS(61)
++  PPC64_STVS(62)
++  PPC64_STVS(63)
++
++#else
++
++// store FP register
++#define PPC64_STF(n) \
++  stfd  %f##n, (PPC64_OFFS_FP + n * 16)(%r3)
++
++  // save float registers
++  PPC64_STF(0)
++  PPC64_STF(1)
++  PPC64_STF(2)
++  PPC64_STF(3)
++  PPC64_STF(4)
++  PPC64_STF(5)
++  PPC64_STF(6)
++  PPC64_STF(7)
++  PPC64_STF(8)
++  PPC64_STF(9)
++  PPC64_STF(10)
++  PPC64_STF(11)
++  PPC64_STF(12)
++  PPC64_STF(13)
++  PPC64_STF(14)
++  PPC64_STF(15)
++  PPC64_STF(16)
++  PPC64_STF(17)
++  PPC64_STF(18)
++  PPC64_STF(19)
++  PPC64_STF(20)
++  PPC64_STF(21)
++  PPC64_STF(22)
++  PPC64_STF(23)
++  PPC64_STF(24)
++  PPC64_STF(25)
++  PPC64_STF(26)
++  PPC64_STF(27)
++  PPC64_STF(28)
++  PPC64_STF(29)
++  PPC64_STF(30)
++  PPC64_STF(31)
++
++  // save vector registers
++
++  // Use 16-bytes below the stack pointer as an
++  // aligned buffer to save each vector register.
++  // Note that the stack pointer is always 16-byte aligned.
++  subi  %r4, %r1, 16
++
++#define PPC64_STV_UNALIGNED(n)                 \
++  stvx  %v##n, 0, %r4                         ;\
++  ld    %r5, 0(%r4)                           ;\
++  std   %r5, (PPC64_OFFS_V + n * 16)(%r3)     ;\
++  ld    %r5, 8(%r4)                           ;\
++  std   %r5, (PPC64_OFFS_V + n * 16 + 8)(%r3)
++
++  PPC64_STV_UNALIGNED(0)
++  PPC64_STV_UNALIGNED(1)
++  PPC64_STV_UNALIGNED(2)
++  PPC64_STV_UNALIGNED(3)
++  PPC64_STV_UNALIGNED(4)
++  PPC64_STV_UNALIGNED(5)
++  PPC64_STV_UNALIGNED(6)
++  PPC64_STV_UNALIGNED(7)
++  PPC64_STV_UNALIGNED(8)
++  PPC64_STV_UNALIGNED(9)
++  PPC64_STV_UNALIGNED(10)
++  PPC64_STV_UNALIGNED(11)
++  PPC64_STV_UNALIGNED(12)
++  PPC64_STV_UNALIGNED(13)
++  PPC64_STV_UNALIGNED(14)
++  PPC64_STV_UNALIGNED(15)
++  PPC64_STV_UNALIGNED(16)
++  PPC64_STV_UNALIGNED(17)
++  PPC64_STV_UNALIGNED(18)
++  PPC64_STV_UNALIGNED(19)
++  PPC64_STV_UNALIGNED(20)
++  PPC64_STV_UNALIGNED(21)
++  PPC64_STV_UNALIGNED(22)
++  PPC64_STV_UNALIGNED(23)
++  PPC64_STV_UNALIGNED(24)
++  PPC64_STV_UNALIGNED(25)
++  PPC64_STV_UNALIGNED(26)
++  PPC64_STV_UNALIGNED(27)
++  PPC64_STV_UNALIGNED(28)
++  PPC64_STV_UNALIGNED(29)
++  PPC64_STV_UNALIGNED(30)
++  PPC64_STV_UNALIGNED(31)
++
++#endif
++
++  li    %r3,  0   // return UNW_ESUCCESS
++  blr
++
++
+ #elif defined(__ppc__)
+ 
+ ;
+--- a/include/__libunwind_config.h
++++ b/include/__libunwind_config.h
+@@ -26,6 +26,11 @@
+ #  define _LIBUNWIND_CONTEXT_SIZE 21
+ #  define _LIBUNWIND_CURSOR_SIZE 33
+ #  define _LIBUNWIND_HIGHEST_DWARF_REGISTER 17
++# elif defined(__powerpc64__)
++#  define _LIBUNWIND_TARGET_PPC64 1
++#  define _LIBUNWIND_CONTEXT_SIZE 167
++#  define _LIBUNWIND_CURSOR_SIZE 179
++#  define _LIBUNWIND_HIGHEST_DWARF_REGISTER 116
+ # elif defined(__ppc__)
+ #  define _LIBUNWIND_TARGET_PPC 1
+ #  define _LIBUNWIND_CONTEXT_SIZE 117
+@@ -58,11 +63,12 @@
+ # define _LIBUNWIND_TARGET_I386
+ # define _LIBUNWIND_TARGET_X86_64 1
+ # define _LIBUNWIND_TARGET_PPC 1
++# define _LIBUNWIND_TARGET_PPC64 1
+ # define _LIBUNWIND_TARGET_AARCH64 1
+ # define _LIBUNWIND_TARGET_ARM 1
+ # define _LIBUNWIND_TARGET_OR1K 1
+-# define _LIBUNWIND_CONTEXT_SIZE 128
+-# define _LIBUNWIND_CURSOR_SIZE 140
++# define _LIBUNWIND_CONTEXT_SIZE 167
++# define _LIBUNWIND_CURSOR_SIZE 179
+ # define _LIBUNWIND_HIGHEST_DWARF_REGISTER 120
+ #endif // _LIBUNWIND_IS_NATIVE_ONLY
+ 
+--- a/src/assembly.h
++++ b/src/assembly.h
+@@ -16,7 +16,20 @@
+ #ifndef UNWIND_ASSEMBLY_H
+ #define UNWIND_ASSEMBLY_H
+ 
+-#if defined(__POWERPC__) || defined(__powerpc__) || defined(__ppc__)
++#if defined(__powerpc64__)
++#define SEPARATOR ;
++#define PPC64_OFFS_SRR0   0
++#define PPC64_OFFS_CR     272
++#define PPC64_OFFS_XER    280
++#define PPC64_OFFS_LR     288
++#define PPC64_OFFS_CTR    296
++#define PPC64_OFFS_VRSAVE 304
++#define PPC64_OFFS_FP     312
++#define PPC64_OFFS_V      824
++#ifdef _ARCH_PWR8
++#define PPC64_HAS_VMX
++#endif
++#elif defined(__POWERPC__) || defined(__powerpc__) || defined(__ppc__)
+ #define SEPARATOR @
+ #elif defined(__arm64__)
+ #define SEPARATOR %%
+--- a/src/config.h
++++ b/src/config.h
+@@ -57,16 +57,20 @@
+ #define _LIBUNWIND_BUILD_SJLJ_APIS
+ #endif
+ 
+-#if defined(__i386__) || defined(__x86_64__) || defined(__ppc__) || defined(__ppc64__)
++#if defined(__i386__) || defined(__x86_64__) || defined(__ppc__) || defined(__ppc64__) || defined(__powerpc64__)
+ #define _LIBUNWIND_SUPPORT_FRAME_APIS
+ #endif
+ 
+ #if defined(__i386__) || defined(__x86_64__) ||                                \
+-    defined(__ppc__) || defined(__ppc64__) ||                                  \
++    defined(__ppc__) || defined(__ppc64__) || defined(__powerpc64__) ||        \
+     (!defined(__APPLE__) && defined(__arm__)) ||                               \
+     (defined(__arm64__) || defined(__aarch64__)) ||                            \
+     (defined(__APPLE__) && defined(__mips__))
+ #define _LIBUNWIND_BUILD_ZERO_COST_APIS
++#endif
++
++#if defined(__powerpc64__) && defined(_ARCH_PWR8)
++#define PPC64_HAS_VMX
+ #endif
+ 
+ #if defined(NDEBUG) && defined(_LIBUNWIND_IS_BAREMETAL)
+--- a/src/libunwind.cpp
++++ b/src/libunwind.cpp
+@@ -50,6 +50,8 @@
+ # define REGISTER_KIND Registers_x86
+ #elif defined(__x86_64__)
+ # define REGISTER_KIND Registers_x86_64
++#elif defined(__powerpc64__)
++# define REGISTER_KIND Registers_ppc64
+ #elif defined(__ppc__)
+ # define REGISTER_KIND Registers_ppc
+ #elif defined(__aarch64__)
+--- a/include/libunwind.h
++++ b/include/libunwind.h
+@@ -309,6 +309,190 @@
+   UNW_PPC_SPEFSCR = 112
+ };
+ 
++// 64-bit ppc register numbers
++enum {
++  UNW_PPC64_R0  = 0,
++  UNW_PPC64_R1  = 1,
++  UNW_PPC64_R2  = 2,
++  UNW_PPC64_R3  = 3,
++  UNW_PPC64_R4  = 4,
++  UNW_PPC64_R5  = 5,
++  UNW_PPC64_R6  = 6,
++  UNW_PPC64_R7  = 7,
++  UNW_PPC64_R8  = 8,
++  UNW_PPC64_R9  = 9,
++  UNW_PPC64_R10 = 10,
++  UNW_PPC64_R11 = 11,
++  UNW_PPC64_R12 = 12,
++  UNW_PPC64_R13 = 13,
++  UNW_PPC64_R14 = 14,
++  UNW_PPC64_R15 = 15,
++  UNW_PPC64_R16 = 16,
++  UNW_PPC64_R17 = 17,
++  UNW_PPC64_R18 = 18,
++  UNW_PPC64_R19 = 19,
++  UNW_PPC64_R20 = 20,
++  UNW_PPC64_R21 = 21,
++  UNW_PPC64_R22 = 22,
++  UNW_PPC64_R23 = 23,
++  UNW_PPC64_R24 = 24,
++  UNW_PPC64_R25 = 25,
++  UNW_PPC64_R26 = 26,
++  UNW_PPC64_R27 = 27,
++  UNW_PPC64_R28 = 28,
++  UNW_PPC64_R29 = 29,
++  UNW_PPC64_R30 = 30,
++  UNW_PPC64_R31 = 31,
++  UNW_PPC64_F0  = 32,
++  UNW_PPC64_F1  = 33,
++  UNW_PPC64_F2  = 34,
++  UNW_PPC64_F3  = 35,
++  UNW_PPC64_F4  = 36,
++  UNW_PPC64_F5  = 37,
++  UNW_PPC64_F6  = 38,
++  UNW_PPC64_F7  = 39,
++  UNW_PPC64_F8  = 40,
++  UNW_PPC64_F9  = 41,
++  UNW_PPC64_F10 = 42,
++  UNW_PPC64_F11 = 43,
++  UNW_PPC64_F12 = 44,
++  UNW_PPC64_F13 = 45,
++  UNW_PPC64_F14 = 46,
++  UNW_PPC64_F15 = 47,
++  UNW_PPC64_F16 = 48,
++  UNW_PPC64_F17 = 49,
++  UNW_PPC64_F18 = 50,
++  UNW_PPC64_F19 = 51,
++  UNW_PPC64_F20 = 52,
++  UNW_PPC64_F21 = 53,
++  UNW_PPC64_F22 = 54,
++  UNW_PPC64_F23 = 55,
++  UNW_PPC64_F24 = 56,
++  UNW_PPC64_F25 = 57,
++  UNW_PPC64_F26 = 58,
++  UNW_PPC64_F27 = 59,
++  UNW_PPC64_F28 = 60,
++  UNW_PPC64_F29 = 61,
++  UNW_PPC64_F30 = 62,
++  UNW_PPC64_F31 = 63,
++  // 64: reserved
++  UNW_PPC64_LR  = 65,
++  UNW_PPC64_CTR = 66,
++  // 67: reserved
++  UNW_PPC64_CR0 = 68,
++  UNW_PPC64_CR1 = 69,
++  UNW_PPC64_CR2 = 70,
++  UNW_PPC64_CR3 = 71,
++  UNW_PPC64_CR4 = 72,
++  UNW_PPC64_CR5 = 73,
++  UNW_PPC64_CR6 = 74,
++  UNW_PPC64_CR7 = 75,
++  UNW_PPC64_XER = 76,
++  UNW_PPC64_V0  = 77,
++  UNW_PPC64_V1  = 78,
++  UNW_PPC64_V2  = 79,
++  UNW_PPC64_V3  = 80,
++  UNW_PPC64_V4  = 81,
++  UNW_PPC64_V5  = 82,
++  UNW_PPC64_V6  = 83,
++  UNW_PPC64_V7  = 84,
++  UNW_PPC64_V8  = 85,
++  UNW_PPC64_V9  = 86,
++  UNW_PPC64_V10 = 87,
++  UNW_PPC64_V11 = 88,
++  UNW_PPC64_V12 = 89,
++  UNW_PPC64_V13 = 90,
++  UNW_PPC64_V14 = 91,
++  UNW_PPC64_V15 = 92,
++  UNW_PPC64_V16 = 93,
++  UNW_PPC64_V17 = 94,
++  UNW_PPC64_V18 = 95,
++  UNW_PPC64_V19 = 96,
++  UNW_PPC64_V20 = 97,
++  UNW_PPC64_V21 = 98,
++  UNW_PPC64_V22 = 99,
++  UNW_PPC64_V23 = 100,
++  UNW_PPC64_V24 = 101,
++  UNW_PPC64_V25 = 102,
++  UNW_PPC64_V26 = 103,
++  UNW_PPC64_V27 = 104,
++  UNW_PPC64_V28 = 105,
++  UNW_PPC64_V29 = 106,
++  UNW_PPC64_V30 = 107,
++  UNW_PPC64_V31 = 108,
++  // 109, 111-113: OpenPOWER ELF V2 ABI: reserved
++  // Borrowing VRSAVE number from PPC32.
++  UNW_PPC64_VRSAVE  = 109,
++  UNW_PPC64_VSCR    = 110,
++  UNW_PPC64_TFHAR   = 114,
++  UNW_PPC64_TFIAR   = 115,
++  UNW_PPC64_TEXASR  = 116,
++  UNW_PPC64_VS0     = UNW_PPC64_F0,
++  UNW_PPC64_VS1     = UNW_PPC64_F1,
++  UNW_PPC64_VS2     = UNW_PPC64_F2,
++  UNW_PPC64_VS3     = UNW_PPC64_F3,
++  UNW_PPC64_VS4     = UNW_PPC64_F4,
++  UNW_PPC64_VS5     = UNW_PPC64_F5,
++  UNW_PPC64_VS6     = UNW_PPC64_F6,
++  UNW_PPC64_VS7     = UNW_PPC64_F7,
++  UNW_PPC64_VS8     = UNW_PPC64_F8,
++  UNW_PPC64_VS9     = UNW_PPC64_F9,
++  UNW_PPC64_VS10    = UNW_PPC64_F10,
++  UNW_PPC64_VS11    = UNW_PPC64_F11,
++  UNW_PPC64_VS12    = UNW_PPC64_F12,
++  UNW_PPC64_VS13    = UNW_PPC64_F13,
++  UNW_PPC64_VS14    = UNW_PPC64_F14,
++  UNW_PPC64_VS15    = UNW_PPC64_F15,
++  UNW_PPC64_VS16    = UNW_PPC64_F16,
++  UNW_PPC64_VS17    = UNW_PPC64_F17,
++  UNW_PPC64_VS18    = UNW_PPC64_F18,
++  UNW_PPC64_VS19    = UNW_PPC64_F19,
++  UNW_PPC64_VS20    = UNW_PPC64_F20,
++  UNW_PPC64_VS21    = UNW_PPC64_F21,
++  UNW_PPC64_VS22    = UNW_PPC64_F22,
++  UNW_PPC64_VS23    = UNW_PPC64_F23,
++  UNW_PPC64_VS24    = UNW_PPC64_F24,
++  UNW_PPC64_VS25    = UNW_PPC64_F25,
++  UNW_PPC64_VS26    = UNW_PPC64_F26,
++  UNW_PPC64_VS27    = UNW_PPC64_F27,
++  UNW_PPC64_VS28    = UNW_PPC64_F28,
++  UNW_PPC64_VS29    = UNW_PPC64_F29,
++  UNW_PPC64_VS30    = UNW_PPC64_F30,
++  UNW_PPC64_VS31    = UNW_PPC64_F31,
++  UNW_PPC64_VS32    = UNW_PPC64_V0,
++  UNW_PPC64_VS33    = UNW_PPC64_V1,
++  UNW_PPC64_VS34    = UNW_PPC64_V2,
++  UNW_PPC64_VS35    = UNW_PPC64_V3,
++  UNW_PPC64_VS36    = UNW_PPC64_V4,
++  UNW_PPC64_VS37    = UNW_PPC64_V5,
++  UNW_PPC64_VS38    = UNW_PPC64_V6,
++  UNW_PPC64_VS39    = UNW_PPC64_V7,
++  UNW_PPC64_VS40    = UNW_PPC64_V8,
++  UNW_PPC64_VS41    = UNW_PPC64_V9,
++  UNW_PPC64_VS42    = UNW_PPC64_V10,
++  UNW_PPC64_VS43    = UNW_PPC64_V11,
++  UNW_PPC64_VS44    = UNW_PPC64_V12,
++  UNW_PPC64_VS45    = UNW_PPC64_V13,
++  UNW_PPC64_VS46    = UNW_PPC64_V14,
++  UNW_PPC64_VS47    = UNW_PPC64_V15,
++  UNW_PPC64_VS48    = UNW_PPC64_V16,
++  UNW_PPC64_VS49    = UNW_PPC64_V17,
++  UNW_PPC64_VS50    = UNW_PPC64_V18,
++  UNW_PPC64_VS51    = UNW_PPC64_V19,
++  UNW_PPC64_VS52    = UNW_PPC64_V20,
++  UNW_PPC64_VS53    = UNW_PPC64_V21,
++  UNW_PPC64_VS54    = UNW_PPC64_V22,
++  UNW_PPC64_VS55    = UNW_PPC64_V23,
++  UNW_PPC64_VS56    = UNW_PPC64_V24,
++  UNW_PPC64_VS57    = UNW_PPC64_V25,
++  UNW_PPC64_VS58    = UNW_PPC64_V26,
++  UNW_PPC64_VS59    = UNW_PPC64_V27,
++  UNW_PPC64_VS60    = UNW_PPC64_V28,
++  UNW_PPC64_VS61    = UNW_PPC64_V29,
++  UNW_PPC64_VS62    = UNW_PPC64_V30,
++  UNW_PPC64_VS63    = UNW_PPC64_V31
++};
++
+ // 64-bit ARM64 registers
+ enum {
+   UNW_ARM64_X0  = 0,