sim/common/sim-trace.h

   1 /* Simulator tracing/debugging support.
   2    Copyright (C) 1997 Free Software Foundation, Inc.
   3    Contributed by Cygnus Support.
   4
   5 This file is part of GDB, the GNU debugger.
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License along
  18 with this program; if not, write to the Free Software Foundation, Inc.,
  19 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  20
  21 /* This file is meant to be included by sim-basics.h.  */
  22
  23 #ifndef SIM_TRACE_H
  24 #define SIM_TRACE_H
  25
  26 #ifndef __attribute__
  27 #if !defined(__GNUC__) || (__GNUC__ < 2) || (__GNUC__ == 2 && __GNU_MINOR__ < 7)
  28 #define __attribute__(attr)
  29 #endif
  30 #endif
  31
  32 /* Standard traceable entities.  */
  33 #define TRACE_SEMANTICS_IDX -1  /* set ALU, FPU, MEMORY tracing */
  34 #define TRACE_INSN_IDX 0
  35 #define TRACE_DECODE_IDX 1
  36 #define TRACE_EXTRACT_IDX 2
  37 #define TRACE_LINENUM_IDX 3
  38 #define TRACE_MEMORY_IDX 4
  39 #define TRACE_MODEL_IDX 5
  40 #define TRACE_ALU_IDX 6
  41 #define TRACE_CORE_IDX 7
  42 #define TRACE_EVENTS_IDX 8
  43 #define TRACE_FPU_IDX 9
  44 #define TRACE_BRANCH_IDX 10
  45 #define TRACE_NEXT_IDX 16 /* simulator specific trace bits begin here */
  46
  47 /* Maximum number of traceable entities.  */
  48 #ifndef MAX_TRACE_VALUES
  49 #define MAX_TRACE_VALUES 32
  50 #endif
  51
  52 /* Masks so WITH_TRACE can have symbolic values.  */
  53 #define TRACE_insn 1
  54 #define TRACE_decode 2
  55 #define TRACE_extract 4
  56 #define TRACE_linenum 8
  57 #define TRACE_memory 16
  58 #define TRACE_model 32
  59 #define TRACE_alu 64
  60 #define TRACE_core 128
  61 #define TRACE_events 256
  62 #define TRACE_fpu 512
  63 #define TRACE_branch 1024
  64
  65 /* Preprocessor macros to simplify tests of WITH_TRACE.  */
  66 #define WITH_TRACE_INSN_P       (WITH_TRACE & TRACE_insn)
  67 #define WITH_TRACE_DECODE_P     (WITH_TRACE & TRACE_decode)
  68 #define WITH_TRACE_EXTRACT_P    (WITH_TRACE & TRACE_extract)
  69 #define WITH_TRACE_LINENUM_P    (WITH_TRACE & TRACE_linenum)
  70 #define WITH_TRACE_MEMORY_P     (WITH_TRACE & TRACE_memory)
  71 #define WITH_TRACE_MODEL_P      (WITH_TRACE & TRACE_model)
  72 #define WITH_TRACE_ALU_P        (WITH_TRACE & TRACE_alu)
  73 #define WITH_TRACE_CORE_P       (WITH_TRACE & TRACE_core)
  74 #define WITH_TRACE_EVENTS_P     (WITH_TRACE & TRACE_events)
  75 #define WITH_TRACE_FPU_P        (WITH_TRACE & TRACE_fpu)
  76 #define WITH_TRACE_BRANCH_P     (WITH_TRACE & TRACE_branch)
  77
  78 /* Tracing install handler.  */
  79 MODULE_INSTALL_FN trace_install;
  80 \f
  81 /* Struct containing all trace data.  */
  82
  83 typedef struct {
  84   /* Boolean array of specified tracing flags.  */
  85   /* ??? It's not clear that using an array vs a bit mask is faster.
  86      Consider the case where one wants to test whether any of several bits
  87      are set.  */
  88   char trace_flags[MAX_TRACE_VALUES];
  89 #define TRACE_FLAGS(t) ((t)->trace_flags)
  90
  91   /* Tracing output goes to this or stderr if NULL.
  92      We can't store `stderr' here as stderr goes through a callback.  */
  93   FILE *trace_file;
  94 #define TRACE_FILE(t) ((t)->trace_file)
  95 } TRACE_DATA;
  96 \f
  97 /* Usage macros.  */
  98
  99 #define CPU_TRACE_FLAGS(cpu) TRACE_FLAGS (CPU_TRACE_DATA (cpu))
 100
 101 /* forward reference */
 102 struct _sim_cpu;
 103
 104 /* Tracing support.  */
 105
 106 /* Return non-zero if tracing of IDX is enabled for CPU.  */
 107 #define TRACE_P(cpu,idx) \
 108 ((WITH_TRACE & (1 << (idx))) != 0 \
 109  && CPU_TRACE_FLAGS (cpu)[idx] != 0)
 110
 111 /* Non-zero if  a certain --trace-<xxxx> was specified for CPU.  */
 112 #define TRACE_INSN_P(cpu)       TRACE_P (cpu, TRACE_INSN_IDX)
 113 #define TRACE_DECODE_P(cpu)     TRACE_P (cpu, TRACE_DECODE_IDX)
 114 #define TRACE_EXTRACT_P(cpu)    TRACE_P (cpu, TRACE_EXTRACT_IDX)
 115 #define TRACE_LINENUM_P(cpu)    TRACE_P (cpu, TRACE_LINENUM_IDX)
 116 #define TRACE_MEMORY_P(cpu)     TRACE_P (cpu, TRACE_MEMORY_IDX)
 117 #define TRACE_MODEL_P(cpu)      TRACE_P (cpu, TRACE_MODEL_IDX)
 118 #define TRACE_ALU_P(cpu)        TRACE_P (cpu, TRACE_ALU_IDX)
 119 #define TRACE_CORE_P(cpu)       TRACE_P (cpu, TRACE_CORE_IDX)
 120 #define TRACE_EVENTS_P(cpu)     TRACE_P (cpu, TRACE_EVENTS_IDX)
 121 #define TRACE_FPU_P(cpu)        TRACE_P (cpu, TRACE_FPU_IDX)
 122 #define TRACE_BRANCH_P(cpu)     TRACE_P (cpu, TRACE_BRANCH_IDX)
 123
 124 extern void trace_one_insn PARAMS ((SIM_DESC, sim_cpu *,
 125                                     address_word, int,
 126                                     const char *, int,
 127                                     const char *, const char *));
 128
 129 extern void trace_printf PARAMS ((SIM_DESC, sim_cpu *, const char *, ...))
 130      __attribute__((format (printf, 3, 4)));
 131
 132 /* Debug support.
 133    This is included here because there isn't enough of it to justify
 134    a sim-debug.h.  */
 135
 136 /* Return non-zero if debugging of IDX for CPU is enabled.  */
 137 #define DEBUG_P(cpu, idx) \
 138 ((WITH_DEBUG & (1 << (idx))) != 0 \
 139  && CPU_DEBUG_FLAGS (cpu)[idx] != 0)
 140
 141 /* Non-zero if "--debug-insn" specified.  */
 142 #define DEBUG_INSN_P(cpu) DEBUG_P (cpu, DEBUG_INSN_IDX)
 143
 144 extern void debug_printf PARAMS ((struct _sim_cpu *, const char *, ...))
 145      __attribute__((format (printf, 2, 3)));
 146
 147 #endif /* SIM_TRACE_H */