diff options
Diffstat (limited to 'contrib/llvm/lib/Target/ARM/MCTargetDesc/ARMUnwindOpAsm.cpp')
| -rw-r--r-- | contrib/llvm/lib/Target/ARM/MCTargetDesc/ARMUnwindOpAsm.cpp | 49 |
1 files changed, 27 insertions, 22 deletions
diff --git a/contrib/llvm/lib/Target/ARM/MCTargetDesc/ARMUnwindOpAsm.cpp b/contrib/llvm/lib/Target/ARM/MCTargetDesc/ARMUnwindOpAsm.cpp index c94337081884..593fe349b1d4 100644 --- a/contrib/llvm/lib/Target/ARM/MCTargetDesc/ARMUnwindOpAsm.cpp +++ b/contrib/llvm/lib/Target/ARM/MCTargetDesc/ARMUnwindOpAsm.cpp @@ -13,8 +13,7 @@ //===----------------------------------------------------------------------===// #include "ARMUnwindOpAsm.h" - -#include "ARMUnwindOp.h" +#include "llvm/Support/ARMEHABI.h" #include "llvm/Support/ErrorHandling.h" #include "llvm/Support/LEB128.h" @@ -50,14 +49,15 @@ namespace { /// Emit the personality index prefix. inline void EmitPersonalityIndex(unsigned PI) { - assert(PI < NUM_PERSONALITY_INDEX && "Invalid personality prefix"); - EmitByte(EHT_COMPACT | PI); + assert(PI < ARM::EHABI::NUM_PERSONALITY_INDEX && + "Invalid personality prefix"); + EmitByte(ARM::EHABI::EHT_COMPACT | PI); } /// Fill the rest of bytes with FINISH opcode. inline void FillFinishOpcode() { while (Pos < Vec.size()) - EmitByte(UNWIND_OPCODE_FINISH); + EmitByte(ARM::EHABI::UNWIND_OPCODE_FINISH); } }; } @@ -85,22 +85,22 @@ void UnwindOpcodeAssembler::EmitRegSave(uint32_t RegSave) { uint32_t UnmaskedReg = RegSave & 0xfff0u & (~Mask); if (UnmaskedReg == 0u) { // Pop r[4 : (4 + n)] - EmitInt8(UNWIND_OPCODE_POP_REG_RANGE_R4 | Range); + EmitInt8(ARM::EHABI::UNWIND_OPCODE_POP_REG_RANGE_R4 | Range); RegSave &= 0x000fu; } else if (UnmaskedReg == (1u << 14)) { // Pop r[14] + r[4 : (4 + n)] - EmitInt8(UNWIND_OPCODE_POP_REG_RANGE_R4_R14 | Range); + EmitInt8(ARM::EHABI::UNWIND_OPCODE_POP_REG_RANGE_R4_R14 | Range); RegSave &= 0x000fu; } } // Two bytes opcode to save register r15-r4 if ((RegSave & 0xfff0u) != 0) - EmitInt16(UNWIND_OPCODE_POP_REG_MASK_R4 | (RegSave >> 4)); + EmitInt16(ARM::EHABI::UNWIND_OPCODE_POP_REG_MASK_R4 | (RegSave >> 4)); // Opcode to save register r3-r0 if ((RegSave & 0x000fu) != 0) - EmitInt16(UNWIND_OPCODE_POP_REG_MASK | (RegSave & 0x000fu)); + EmitInt16(ARM::EHABI::UNWIND_OPCODE_POP_REG_MASK | (RegSave & 0x000fu)); } /// Emit unwind opcodes for .vsave directives @@ -125,7 +125,7 @@ void UnwindOpcodeAssembler::EmitVFPRegSave(uint32_t VFPRegSave) { Bit >>= 1; } - EmitInt16(UNWIND_OPCODE_POP_VFP_REG_RANGE_FSTMFDD_D16 | + EmitInt16(ARM::EHABI::UNWIND_OPCODE_POP_VFP_REG_RANGE_FSTMFDD_D16 | ((i - 16) << 4) | Range); } @@ -147,34 +147,36 @@ void UnwindOpcodeAssembler::EmitVFPRegSave(uint32_t VFPRegSave) { Bit >>= 1; } - EmitInt16(UNWIND_OPCODE_POP_VFP_REG_RANGE_FSTMFDD | (i << 4) | Range); + EmitInt16(ARM::EHABI::UNWIND_OPCODE_POP_VFP_REG_RANGE_FSTMFDD | (i << 4) | + Range); } } /// Emit unwind opcodes to copy address from source register to $sp. void UnwindOpcodeAssembler::EmitSetSP(uint16_t Reg) { - EmitInt8(UNWIND_OPCODE_SET_VSP | Reg); + EmitInt8(ARM::EHABI::UNWIND_OPCODE_SET_VSP | Reg); } /// Emit unwind opcodes to add $sp with an offset. void UnwindOpcodeAssembler::EmitSPOffset(int64_t Offset) { if (Offset > 0x200) { uint8_t Buff[16]; - Buff[0] = UNWIND_OPCODE_INC_VSP_ULEB128; + Buff[0] = ARM::EHABI::UNWIND_OPCODE_INC_VSP_ULEB128; size_t ULEBSize = encodeULEB128((Offset - 0x204) >> 2, Buff + 1); EmitBytes(Buff, ULEBSize + 1); } else if (Offset > 0) { if (Offset > 0x100) { - EmitInt8(UNWIND_OPCODE_INC_VSP | 0x3fu); + EmitInt8(ARM::EHABI::UNWIND_OPCODE_INC_VSP | 0x3fu); Offset -= 0x100; } - EmitInt8(UNWIND_OPCODE_INC_VSP | static_cast<uint8_t>((Offset - 4) >> 2)); + EmitInt8(ARM::EHABI::UNWIND_OPCODE_INC_VSP | + static_cast<uint8_t>((Offset - 4) >> 2)); } else if (Offset < 0) { while (Offset < -0x100) { - EmitInt8(UNWIND_OPCODE_DEC_VSP | 0x3fu); + EmitInt8(ARM::EHABI::UNWIND_OPCODE_DEC_VSP | 0x3fu); Offset += 0x100; } - EmitInt8(UNWIND_OPCODE_DEC_VSP | + EmitInt8(ARM::EHABI::UNWIND_OPCODE_DEC_VSP | static_cast<uint8_t>(((-Offset) - 4) >> 2)); } } @@ -186,20 +188,23 @@ void UnwindOpcodeAssembler::Finalize(unsigned &PersonalityIndex, if (HasPersonality) { // User-specifed personality routine: [ SIZE , OP1 , OP2 , ... ] - PersonalityIndex = NUM_PERSONALITY_INDEX; + PersonalityIndex = ARM::EHABI::NUM_PERSONALITY_INDEX; size_t TotalSize = Ops.size() + 1; size_t RoundUpSize = (TotalSize + 3) / 4 * 4; Result.resize(RoundUpSize); OpStreamer.EmitSize(RoundUpSize); } else { - if (Ops.size() <= 3) { + // If no personalityindex is specified, select ane + if (PersonalityIndex == ARM::EHABI::NUM_PERSONALITY_INDEX) + PersonalityIndex = (Ops.size() <= 3) ? ARM::EHABI::AEABI_UNWIND_CPP_PR0 + : ARM::EHABI::AEABI_UNWIND_CPP_PR1; + if (PersonalityIndex == ARM::EHABI::AEABI_UNWIND_CPP_PR0) { // __aeabi_unwind_cpp_pr0: [ 0x80 , OP1 , OP2 , OP3 ] - PersonalityIndex = AEABI_UNWIND_CPP_PR0; + assert(Ops.size() <= 3 && "too many opcodes for __aeabi_unwind_cpp_pr0"); Result.resize(4); OpStreamer.EmitPersonalityIndex(PersonalityIndex); } else { - // __aeabi_unwind_cpp_pr1: [ 0x81 , SIZE , OP1 , OP2 , ... ] - PersonalityIndex = AEABI_UNWIND_CPP_PR1; + // __aeabi_unwind_cpp_pr{1,2}: [ {0x81,0x82} , SIZE , OP1 , OP2 , ... ] size_t TotalSize = Ops.size() + 2; size_t RoundUpSize = (TotalSize + 3) / 4 * 4; Result.resize(RoundUpSize); |