pike.git / src / code / ppc32.h

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pike.git/src/code/ppc32.h:1:   /* -  * $Id: ppc32.h,v 1.10 2001/09/19 21:59:15 marcus Exp $ + || This file is part of Pike. For copyright information see COPYRIGHT. + || Pike is distributed under GPL, LGPL and MPL. See the file COPYING + || for more information.   */    - #define PIKE_OPCODE_T unsigned INT32 -  +    #define PPC_INSTR_B_FORM(OPCD,BO,BI,BD,AA,LK) \    add_to_program(((OPCD)<<26)|((BO)<<21)|((BI)<<16)| \    (((BD)&0x3fff)<<2)|((AA)<<1)|(LK))   #define PPC_INSTR_D_FORM(OPCD,S,A,d) \    add_to_program(((OPCD)<<26)|((S)<<21)|((A)<<16)|((d)&0xffff)) -  + #define PPC_INSTR_I_FORM(OPCD,LI,AA,LK) \ +  add_to_program(((OPCD)<<26)|((LI)&0x03fffffc)|((AA)<<1)|(LK))   #define PPC_INSTR_M_FORM(OPCD,S,A,SH,MB,ME,Rc) \    add_to_program(((OPCD)<<26)|((S)<<21)|((A)<<16)|((SH)<<11)| \    ((MB)<<6)|((ME)<<1)|(Rc)) -  + #define PPC_INSTR_XL_FORM(OPCD,BO,BI,CRBB,XO,LK) \ +  add_to_program(((OPCD)<<26)|((BO)<<21)|((BI)<<16)|((CRBB)<<11)| \ +  ((XO)<<1)|(LK)) + #define PPC_INSTR_XFX_FORM(OPCD,S,SPR,XO) \ +  add_to_program(((OPCD)<<26)|((S)<<21)|((SPR)<<11)|((XO)<<1))      #define BC(BO,BI,BD) PPC_INSTR_B_FORM(16,BO,BI,BD,0,0)      #define CMPLI(crfD,A,UIMM) PPC_INSTR_D_FORM(10,crfD,A,UIMM)   #define ADDIC(D,A,SIMM) PPC_INSTR_D_FORM(12,D,A,SIMM)   #define ADDI(D,A,SIMM) PPC_INSTR_D_FORM(14,D,A,SIMM)   #define ADDIS(D,A,SIMM) PPC_INSTR_D_FORM(15,D,A,SIMM)   #define ORI(A,S,UIMM) PPC_INSTR_D_FORM(24,S,A,UIMM)   #define LWZ(D,A,d) PPC_INSTR_D_FORM(32,D,A,d)   #define STW(S,A,d) PPC_INSTR_D_FORM(36,S,A,d)   #define LHA(D,A,d) PPC_INSTR_D_FORM(42,D,A,d)      #define RLWINM(S,A,SH,MB,ME) PPC_INSTR_M_FORM(21,S,A,SH,MB,ME,0)    -  + #define MFSPR(D,SPR) PPC_INSTR_XFX_FORM(31,D,(((SPR)&0x1f)<<5)|(((SPR)&0x3e0)>>5),339) + #define MTSPR(D,SPR) PPC_INSTR_XFX_FORM(31,D,(((SPR)&0x1f)<<5)|(((SPR)&0x3e0)>>5),467)    - #define LOW_GET_JUMP() (PROG_COUNTER[0]) - #define LOW_SKIPJUMP() (SET_PROG_COUNTER(PROG_COUNTER + 1)) - #define PROG_COUNTER (((INT32 **)__builtin_frame_address(1))[2]) + #define BCLR(BO,BI) PPC_INSTR_XL_FORM(19,BO,BI,0,16,0) + #define BCLRL(BO,BI) PPC_INSTR_XL_FORM(19,BO,BI,0,16,1) + #define B(LI) PPC_INSTR_I_FORM(18,LI,0,0) + #define BL(LI) PPC_INSTR_I_FORM(18,LI,0,1) + #define BLA(LI) PPC_INSTR_I_FORM(18,LI,1,1)    -  + #define LOW_GET_JUMP() ((INT32)PROG_COUNTER[JUMP_EPILOGUE_SIZE]) + #define LOW_SKIPJUMP() (SET_PROG_COUNTER(PROG_COUNTER + JUMP_EPILOGUE_SIZE + 1)) +    #define SET_REG(REG, X) do { \    INT32 val_ = X; \    INT32 reg_ = REG; \    if ((-32768 <= val_) && (val_ <= 32767)) { \    /* addi reg,0,val */ \    ADDI(reg_, 0, val_); \    } else { \    /* addis reg,0,%hi(val) */ \    ADDIS(reg_, 0, val_ >> 16); \    if (val_ & 0xffff) { \    /* ori reg,reg,%lo(val) */ \    ORI(reg_, reg_, val_); \    } \    } \    } while(0)    - #define PPC_REG_RET 0 + #define PPC_SPREG_LR 8    -  + #define PPC_REG_RET 3 +    #define PPC_REG_ARG1 3   #define PPC_REG_ARG2 4   #define PPC_REG_ARG3 5    -  + #define PPC_REG_PIKE_PC 7   #define PPC_REG_PIKE_MARK_SP 8   #define PPC_REG_PIKE_FP 9   #define PPC_REG_PIKE_SP 10    - #define PPC_REG_PIKE_INTERP 31 + #define PPC_REG_PIKE_INTERP 29 /* 31 */    - extern int ppc32_codegen_state; + extern int ppc32_codegen_state, ppc32_codegen_last_pc;   void ppc32_flush_code_generator_state(void);   #define FLUSH_CODE_GENERATOR_STATE ppc32_flush_code_generator_state      #define PPC_CODEGEN_FP_ISSET 1   #define PPC_CODEGEN_SP_ISSET 2   #define PPC_CODEGEN_SP_NEEDSSTORE 4   #define PPC_CODEGEN_MARK_SP_ISSET 8   #define PPC_CODEGEN_MARK_SP_NEEDSSTORE 16 -  + #define PPC_CODEGEN_PC_ISSET 32    - #define LOAD_FP_REG() do { \ -  if(!(ppc32_codegen_state & PPC_CODEGEN_FP_ISSET)) { \ -  /* lwz pike_fp,frame_pointer(pike_interpreter) */ \ -  LWZ(PPC_REG_PIKE_FP, PPC_REG_PIKE_INTERP, \ -  OFFSETOF(Pike_interpreter, frame_pointer)); \ -  ppc32_codegen_state |= PPC_CODEGEN_FP_ISSET; \ -  } \ + #define LOAD_FP_REG() do { \ +  if(!(ppc32_codegen_state & PPC_CODEGEN_FP_ISSET)) { \ +  /* lwz pike_fp,frame_pointer(pike_interpreter) */ \ +  LWZ(PPC_REG_PIKE_FP, PPC_REG_PIKE_INTERP, \ +  OFFSETOF(Pike_interpreter_struct, frame_pointer)); \ +  ppc32_codegen_state |= PPC_CODEGEN_FP_ISSET; \ +  } \    } while(0)    - #define LOAD_SP_REG() do { \ -  if(!(ppc32_codegen_state & PPC_CODEGEN_SP_ISSET)) { \ -  /* lwz pike_sp,stack_pointer(pike_interpreter) */ \ -  LWZ(PPC_REG_PIKE_SP, PPC_REG_PIKE_INTERP, \ -  OFFSETOF(Pike_interpreter, stack_pointer)); \ -  ppc32_codegen_state |= PPC_CODEGEN_SP_ISSET; \ -  } \ + #define LOAD_SP_REG() do { \ +  if(!(ppc32_codegen_state & PPC_CODEGEN_SP_ISSET)) { \ +  /* lwz pike_sp,stack_pointer(pike_interpreter) */ \ +  LWZ(PPC_REG_PIKE_SP, PPC_REG_PIKE_INTERP, \ +  OFFSETOF(Pike_interpreter_struct, stack_pointer)); \ +  ppc32_codegen_state |= PPC_CODEGEN_SP_ISSET; \ +  } \    } while(0)      #define LOAD_MARK_SP_REG() do { \    if(!(ppc32_codegen_state & PPC_CODEGEN_MARK_SP_ISSET)) { \    /* lwz pike_mark_sp,mark_stack_pointer(pike_interpreter) */ \    LWZ(PPC_REG_PIKE_MARK_SP, PPC_REG_PIKE_INTERP, \ -  OFFSETOF(Pike_interpreter, mark_stack_pointer)); \ +  OFFSETOF(Pike_interpreter_struct, mark_stack_pointer)); \    ppc32_codegen_state |= PPC_CODEGEN_MARK_SP_ISSET; \    } \    } while(0)      #define INCR_SP_REG(n) do { \    /* addi pike_sp,pike_sp,n */ \    ADDI(PPC_REG_PIKE_SP, PPC_REG_PIKE_SP, n); \    ppc32_codegen_state |= PPC_CODEGEN_SP_NEEDSSTORE; \    } while(0)      #define INCR_MARK_SP_REG(n) do { \    /* addi pike_mark_sp,pike_mark_sp,n */ \    ADDI(PPC_REG_PIKE_MARK_SP, PPC_REG_PIKE_MARK_SP, n); \    ppc32_codegen_state |= PPC_CODEGEN_MARK_SP_NEEDSSTORE; \    } while(0)    - #define UPDATE_PC() do { \ -  INT32 tmp = PIKE_PC; \ -  LOAD_FP_REG(); \ -  SET_REG(0, tmp); \ -  /* stw r0,pc(pike_fp) */ \ -  STW(0, PPC_REG_PIKE_FP, OFFSETOF(pike_frame, pc)); \ + #define UPDATE_PC() do { \ +  INT32 tmp = PIKE_PC; \ +  if(ppc32_codegen_state & PPC_CODEGEN_PC_ISSET) { \ +  INT32 diff = (tmp-ppc32_codegen_last_pc)*sizeof(PIKE_OPCODE_T); \ +  if (diff) { \ +  if ((-32768 <= diff) && (diff <= 32767)) { \ +  /* addi pike_pc,pike_pc,diff */ \ +  ADDI(PPC_REG_PIKE_PC, PPC_REG_PIKE_PC, diff); \ +  } else { \ +  /* addis pike_pc,pike_pc,%hi(diff) */ \ +  ADDIS(PPC_REG_PIKE_PC, PPC_REG_PIKE_PC, (diff+32768)>>16); \ +  if ((diff &= 0xffff) > 32767) \ +  diff -= 65536; \ +  if (diff) { \ +  /* addi pike_pc,pike_pc,%lo(diff) */ \ +  ADDI(PPC_REG_PIKE_PC, PPC_REG_PIKE_PC, diff); \ +  } \ +  } \ +  } \ +  } else { \ +  /* bl .+4 */ \ +  BL(4); \ +  /* mflr pike_pc */ \ +  MFSPR(PPC_REG_PIKE_PC, PPC_SPREG_LR); \ +  /* addi pike_pc,pike_pc,-4 */ \ +  ADDI(PPC_REG_PIKE_PC, PPC_REG_PIKE_PC, -sizeof(PIKE_OPCODE_T)); \ +  } \ +  ppc32_codegen_last_pc = tmp; \ +  ppc32_codegen_state |= PPC_CODEGEN_PC_ISSET; \ +  LOAD_FP_REG(); \ +  /* stw pike_pc,pc(pike_fp) */ \ +  STW(PPC_REG_PIKE_PC, PPC_REG_PIKE_FP, OFFSETOF(pike_frame, pc)); \    } while(0)    -  + #define ADJUST_PIKE_PC(pc) do { \ +  ppc32_codegen_last_pc = pc; \ +  ppc32_codegen_state |= PPC_CODEGEN_PC_ISSET; \ +  } while (0) +    #define ins_pointer(PTR) add_to_program((INT32)(PTR))   #define read_pointer(OFF) (Pike_compiler->new_program->program[(INT32)(OFF)])   #define upd_pointer(OFF,PTR) (Pike_compiler->new_program->program[(INT32)(OFF)] = (INT32)(PTR))   #define ins_align(ALIGN)   #define ins_byte(VAL) add_to_program((INT32)(VAL))   #define ins_data(VAL) add_to_program((INT32)(VAL)) -  + #define read_program_data(PTR, OFF) ((INT32)((PTR)[OFF]))    - INT32 ppc32_ins_f_jump(unsigned int b); + INT32 ppc32_ins_f_jump(unsigned int a, int backward_jump); + INT32 ppc32_ins_f_jump_with_arg(unsigned int a, unsigned INT32 b, int backward_jump); + INT32 ppc32_ins_f_jump_with_2_args(unsigned int a, unsigned INT32 b, unsigned INT32 c, int backward_jump);   void ppc32_update_f_jump(INT32 offset, INT32 to_offset);   INT32 ppc32_read_f_jump(INT32 offset);   #define INS_F_JUMP ppc32_ins_f_jump -  + #define INS_F_JUMP_WITH_ARG ppc32_ins_f_jump_with_arg + #define INS_F_JUMP_WITH_TWO_ARGS ppc32_ins_f_jump_with_2_args   #define UPDATE_F_JUMP ppc32_update_f_jump   #define READ_F_JUMP ppc32_read_f_jump      #define READ_INCR_BYTE(PC) (((PC)++)[0])      #if 0   #define RELOCATE_program(P, NEW) do { \    PIKE_OPCODE_T *op_ = NEW; \    struct program *p_ = P; \    size_t rel_ = p_->num_relocations; \ -  INT32 delta_ = p_->program - op_; \ +  INT32 disp_, delta_ = p_->program - op_; \    while (rel_--) { \    DO_IF_DEBUG( \    if ((op_[p_->relocations[rel_]] & 0xfc000002) != \    0x48000000) { \ -  fatal("Bad relocation: %d, off:%d, opcode: 0x%08x\n", \ +  Pike_fatal("Bad relocation: %d, off:%d, opcode: 0x%08x\n", \    rel_, p_->relocations[rel_], \    op_[p_->relocations[rel_]]); \    } \    ); \ -  +  disp_ = op_[p_->relocations[rel_]] & 0x03ffffff; \ +  if(disp_ & 0x02000000) \ +  disp_ -= 0x04000000; \ +  disp_ += delta_ << 2; \ +  if(disp_ < -33554432 || disp_ > 33554431) \ +  Pike_fatal("Relocation %d out of range!\n", disp_); \    op_[p_->relocations[rel_]] = 0x48000000 | \ -  ((op_[p_->relocations[rel_]] + (delta_<<2)) & \ -  0x03ffffff); \ +  (disp_ & 0x03ffffff); \    } \    } while(0)   #endif      extern void ppc32_flush_instruction_cache(void *addr, size_t len);   #define FLUSH_INSTRUCTION_CACHE ppc32_flush_instruction_cache    - /* + #if 0   struct dynamic_buffer_s;      void ppc32_encode_program(struct program *p, struct dynamic_buffer_s *buf);   void ppc32_decode_program(struct program *p);      #define ENCODE_PROGRAM(P, BUF) ppc32_encode_program(P, BUF)   #define DECODE_PROGRAM(P) ppc32_decode_program(p) - */ + #endif      #ifdef PIKE_CPU_REG_PREFIX   #define PPC_REGNAME(n) PIKE_CPU_REG_PREFIX #n   #else   #define PPC_REGNAME(n) #n   #endif      #define CALL_MACHINE_CODE(pc) \    __asm__ __volatile__( " mtctr %0\n" \ -  " mr "PPC_REGNAME(31)",%1\n" \ +  " mr "PPC_REGNAME(29)",%1\n" \    " bctr" \    : \ -  : "r" (pc), "r" (&Pike_interpreter) \ -  : "ctr", "lr", "cc", "memory", "r31", "r0", \ +  : "r" (pc), "r" (Pike_interpreter_pointer) \ +  : "ctr", "lr", "cc", "memory", "r29", "r0", \    "r3", "r4", "r5", "r6", "r7", "r8", "r9", \    "r10", "r11", "r12")    -  + #define OPCODE_INLINE_BRANCH + #define OPCODE_RETURN_JUMPADDR +  + #ifdef OPCODE_RETURN_JUMPADDR +  + /* Don't need an lvalue in this case. */ + #define PROG_COUNTER ((PIKE_OPCODE_T *)__builtin_return_address(0)) +  + #define JUMP_EPILOGUE_SIZE 2 + #define JUMP_SET_TO_PC_AT_NEXT(PC) \ +  ((PC) = PROG_COUNTER + JUMP_EPILOGUE_SIZE) +  + #else /* !OPCODE_RETURN_JUMPADDR */ +  + #ifdef __linux + /* SVR4 ABI */ + #define PROG_COUNTER (((PIKE_OPCODE_T **)__builtin_frame_address(1))[1]) + #else + /* PowerOpen ABI */ + #define PROG_COUNTER (((PIKE_OPCODE_T **)__builtin_frame_address(1))[2]) + #endif +  + #define JUMP_EPILOGUE_SIZE 0 +  + #endif /* !OPCODE_RETURN_JUMPADDR */ +  +  + #ifdef PIKE_DEBUG + void ppc32_disassemble_code(void *addr, size_t bytes); + #define DISASSEMBLE_CODE(ADDR, BYTES) ppc32_disassemble_code(ADDR, BYTES) + #endif