pike.git/ src/ code/ sparc.c

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2003-09-23

2003-09-23 17:52:53 by Henrik Grubbström (Grubba) <grubba@grubba.org>

Added debug for checking that the values cached in registers is correct.

Rev: src/code/sparc.c:1.37

2:   || 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. - || $Id: sparc.c,v 1.36 2003/08/15 16:51:20 grubba Exp $ + || $Id: sparc.c,v 1.37 2003/09/23 17:52:53 grubba Exp $   */      /*
192:    *    * L0 &Pike_interpreter    * L1 Pike_fp +  * L7 &d_flag    *    * O6 Stack Pointer    * O7 Program Counter
203:   #define SPARC_REG_PIKE_SP SPARC_REG_L2   #define SPARC_REG_PIKE_MARK_SP SPARC_REG_L3   #define SPARC_REG_PIKE_OBJ SPARC_REG_L4 + #define SPARC_REG_PIKE_DEBUG SPARC_REG_L7   #define SPARC_REG_SP SPARC_REG_O6   #define SPARC_REG_PC SPARC_REG_O7   
500:    *    */    + #ifdef PIKE_DEBUG + void sparc_debug_check_registers(int state, +  struct Pike_interpreter *cached_ip, +  struct pike_frame *cached_fp, +  struct svalue *cached_sp, +  struct svalue **cached_mark_sp) + { +  if (((state & SPARC_CODEGEN_IP_IS_SET) && +  (cached_ip != &Pike_interpreter)) || +  ((state & SPARC_CODEGEN_FP_IS_SET) && +  (cached_fp != Pike_interpreter.frame_pointer)) || +  ((state & SPARC_CODEGEN_SP_IS_SET) && +  (cached_sp != Pike_interpreter.stack_pointer)) || +  ((state & SPARC_CODEGEN_MARK_SP_IS_SET) && +  (cached_mark_sp != Pike_interpreter.mark_stack_pointer))) { +  Pike_fatal("Bad machine code cache key (0x%04x):\n" +  "Cached: ip:0x%08x, fp:0x%08x, sp:0x%08x, m_sp:0x%08x\n" +  " Real: ip:0x%08x, fp:0x%08x, sp:0x%08x, m_sp:0x%08x\n", +  state, +  (INT32)cached_ip, (INT32)cached_fp, +  (INT32)cached_sp, (INT32)cached_mark_sp, +  (INT32)&Pike_interpreter, (INT32)Pike_interpreter.frame_pointer, +  (INT32)Pike_interpreter.stack_pointer, +  (INT32)Pike_interpreter.mark_stack_pointer); +  } + } +  + static void ins_sparc_debug() + { +  int state = sparc_codegen_state; +  if (state & SPARC_CODEGEN_SP_NEEDS_STORE) { +  state &= ~SPARC_CODEGEN_SP_IS_SET; +  } +  if (state & SPARC_CODEGEN_MARK_SP_NEEDS_STORE) { +  state &= ~SPARC_CODEGEN_MARK_SP_IS_SET; +  } +  if (state & +  (SPARC_CODEGEN_FP_IS_SET|SPARC_CODEGEN_SP_IS_SET| +  SPARC_CODEGEN_IP_IS_SET|SPARC_CODEGEN_MARK_SP_IS_SET)) { +  SET_REG(SPARC_REG_PIKE_DEBUG, +  ((INT32)(&d_flag))); +  SPARC_LDUW(SPARC_REG_PIKE_DEBUG, SPARC_REG_PIKE_DEBUG, SPARC_REG_G0, 0); +  SPARC_SUBcc(SPARC_REG_G0, SPARC_REG_PIKE_DEBUG, SPARC_REG_G0, 0); +  SET_REG(SPARC_REG_O0, state); +  SPARC_BE(6*4, 0); +  SPARC_ADD(SPARC_REG_O1, SPARC_REG_PIKE_IP, SPARC_REG_G0, 0); +  SPARC_ADD(SPARC_REG_O2, SPARC_REG_PIKE_FP, SPARC_REG_G0, 0); +  SPARC_ADD(SPARC_REG_O3, SPARC_REG_PIKE_SP, SPARC_REG_G0, 0); +  SPARC_ADD(SPARC_REG_O4, SPARC_REG_PIKE_MARK_SP, SPARC_REG_G0, 0); +  ADD_CALL(sparc_debug_check_registers, 1); +  } + } + #else /* !PIKE_DEBUG */ + #define ins_sparc_debug() + #endif /* PIKE_DEBUG */ +    static void low_ins_call(void *addr, int delay_ok, int i_flags)   {    SPARC_FLUSH_UNSTORED();
637:      void ins_f_byte(unsigned int opcode)   { +  ins_sparc_debug();    low_ins_f_byte(opcode, 0);   }      void ins_f_byte_with_arg(unsigned int a,unsigned INT32 b)   { -  +  ins_sparc_debug(); +     switch(a) {    case F_NUMBER:    sparc_push_int(b, 0);
668:    unsigned INT32 c,    unsigned INT32 b)   { +  ins_sparc_debug(); +     SET_REG(SPARC_REG_O0, c);    SET_REG(SPARC_REG_O1, b);    low_ins_f_byte(a, 1);