src/cpu/SConscript

   1 # -*- mode:python -*-
   2
   3 # Copyright (c) 2006 The Regents of The University of Michigan
   4 # All rights reserved.
   5 #
   6 # Redistribution and use in source and binary forms, with or without
   7 # modification, are permitted provided that the following conditions are
   8 # met: redistributions of source code must retain the above copyright
   9 # notice, this list of conditions and the following disclaimer;
  10 # redistributions in binary form must reproduce the above copyright
  11 # notice, this list of conditions and the following disclaimer in the
  12 # documentation and/or other materials provided with the distribution;
  13 # neither the name of the copyright holders nor the names of its
  14 # contributors may be used to endorse or promote products derived from
  15 # this software without specific prior written permission.
  16 #
  17 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  18 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  19 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  20 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  21 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  22 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  23 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  27 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28
  29 import os
  30 import os.path
  31
  32 # Import build environment variable from SConstruct.
  33 Import('env')
  34
  35 #################################################################
  36 #
  37 # Generate StaticInst execute() method signatures.
  38 #
  39 # There must be one signature for each CPU model compiled in.
  40 # Since the set of compiled-in models is flexible, we generate a
  41 # header containing the appropriate set of signatures on the fly.
  42 #
  43 #################################################################
  44
  45 # CPU model-specific data is contained in cpu_models.py
  46 # Convert to SCons File node to get path handling
  47 models_db = File('cpu_models.py')
  48 # slurp in contents of file
  49 execfile(models_db.srcnode().abspath)
  50
  51 # Template for execute() signature.
  52 exec_sig_template = '''
  53 virtual Fault execute(%s *xc, Trace::InstRecord *traceData) const = 0;
  54 virtual Fault initiateAcc(%s *xc, Trace::InstRecord *traceData) const
  55 { panic("initiateAcc not defined!"); };
  56 virtual Fault completeAcc(Packet *pkt, %s *xc,
  57                           Trace::InstRecord *traceData) const
  58 { panic("completeAcc not defined!"); };
  59 '''
  60
  61 mem_ini_sig_template = '''
  62 virtual Fault initiateAcc(%s *xc, Trace::InstRecord *traceData) const { panic("Not defined!"); };
  63 '''
  64
  65 mem_comp_sig_template = '''
  66 virtual Fault completeAcc(uint8_t *data, %s *xc, Trace::InstRecord *traceData) const { panic("Not defined!"); return NoFault; };
  67 '''
  68
  69 # Generate header.
  70 def gen_cpu_exec_signatures(target, source, env):
  71     f = open(str(target[0]), 'w')
  72     print >> f, '''
  73 #ifndef __CPU_STATIC_INST_EXEC_SIGS_HH__
  74 #define __CPU_STATIC_INST_EXEC_SIGS_HH__
  75 '''
  76     for cpu in env['CPU_MODELS']:
  77         xc_type = CpuModel.dict[cpu].strings['CPU_exec_context']
  78         print >> f, exec_sig_template % (xc_type, xc_type, xc_type)
  79     print >> f, '''
  80 #endif  // __CPU_STATIC_INST_EXEC_SIGS_HH__
  81 '''
  82
  83 # Generate string that gets printed when header is rebuilt
  84 def gen_sigs_string(target, source, env):
  85     return "Generating static_inst_exec_sigs.hh: " \
  86            + ', '.join(env['CPU_MODELS'])
  87
  88 # Add command to generate header to environment.
  89 env.Command('static_inst_exec_sigs.hh', models_db,
  90             Action(gen_cpu_exec_signatures, gen_sigs_string,
  91                    varlist = ['CPU_MODELS']))
  92
  93 #################################################################
  94 #
  95 # Include CPU-model-specific files based on set of models
  96 # specified in CPU_MODELS build option.
  97 #
  98 #################################################################
  99
 100 sources = []
 101
 102 need_simple_base = False
 103 if 'AtomicSimpleCPU' in env['CPU_MODELS']:
 104     need_simple_base = True
 105     sources += Split('simple/atomic.cc')
 106
 107 if 'TimingSimpleCPU' in env['CPU_MODELS']:
 108     need_simple_base = True
 109     sources += Split('simple/timing.cc')
 110
 111 if need_simple_base:
 112     sources += Split('simple/base.cc')
 113
 114 if 'FastCPU' in env['CPU_MODELS']:
 115     sources += Split('fast/cpu.cc')
 116
 117 if 'AlphaFullCPU' in env['CPU_MODELS']:
 118     sources += Split('''
 119         o3/2bit_local_pred.cc
 120         o3/alpha_dyn_inst.cc
 121         o3/alpha_cpu.cc
 122         o3/alpha_cpu_builder.cc
 123         o3/bpred_unit.cc
 124         o3/btb.cc
 125         o3/commit.cc
 126         o3/decode.cc
 127         o3/fetch.cc
 128         o3/free_list.cc
 129         o3/fu_pool.cc
 130         o3/cpu.cc
 131         o3/iew.cc
 132         o3/inst_queue.cc
 133         o3/lsq_unit.cc
 134         o3/lsq.cc
 135         o3/mem_dep_unit.cc
 136         o3/ras.cc
 137         o3/rename.cc
 138         o3/rename_map.cc
 139         o3/rob.cc
 140         o3/scoreboard.cc
 141         o3/store_set.cc
 142         o3/tournament_pred.cc
 143         ''')
 144
 145 if 'OzoneSimpleCPU' in env['CPU_MODELS']:
 146     sources += Split('''
 147         ozone/cpu.cc
 148         ozone/cpu_builder.cc
 149         ozone/dyn_inst.cc
 150         ozone/front_end.cc
 151         ozone/inorder_back_end.cc
 152         ozone/inst_queue.cc
 153         ozone/rename_table.cc
 154         ''')
 155
 156 if 'OzoneCPU' in env['CPU_MODELS']:
 157     sources += Split('''
 158         ozone/back_end.cc
 159         ozone/lsq_unit.cc
 160         ozone/lw_back_end.cc
 161         ozone/lw_lsq.cc
 162         ''')
 163
 164 if 'CheckerCPU' in env['CPU_MODELS']:
 165     sources += Split('''
 166         checker/cpu.cc
 167         checker/cpu_builder.cc
 168         checker/o3_cpu_builder.cc
 169         ''')
 170
 171 # FullCPU sources are included from m5/SConscript since they're not
 172 # below this point in the file hierarchy.
 173
 174 # Convert file names to SCons File objects.  This takes care of the
 175 # path relative to the top of the directory tree.
 176 sources = [File(s) for s in sources]
 177
 178 Return('sources')
 179