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 '''
  55
  56 # Generate header.
  57 def gen_cpu_exec_signatures(target, source, env):
  58     f = open(str(target[0]), 'w')
  59     print >> f, '''
  60 #ifndef __CPU_STATIC_INST_EXEC_SIGS_HH__
  61 #define __CPU_STATIC_INST_EXEC_SIGS_HH__
  62 '''
  63     for cpu in env['CPU_MODELS']:
  64         xc_type = CpuModel.dict[cpu].strings['CPU_exec_context']
  65         print >> f, exec_sig_template % xc_type
  66     print >> f, '''
  67 #endif  // __CPU_STATIC_INST_EXEC_SIGS_HH__
  68 '''
  69
  70 # Generate string that gets printed when header is rebuilt
  71 def gen_sigs_string(target, source, env):
  72     return "Generating static_inst_exec_sigs.hh: " \
  73            + ', '.join(env['CPU_MODELS'])
  74
  75 # Add command to generate header to environment.
  76 env.Command('static_inst_exec_sigs.hh', models_db,
  77             Action(gen_cpu_exec_signatures, gen_sigs_string,
  78                    varlist = ['CPU_MODELS']))
  79
  80 #################################################################
  81 #
  82 # Include CPU-model-specific files based on set of models
  83 # specified in CPU_MODELS build option.
  84 #
  85 #################################################################
  86
  87 sources = []
  88
  89 if 'SimpleCPU' in env['CPU_MODELS']:
  90     sources += Split('simple/cpu.cc')
  91
  92 if 'FastCPU' in env['CPU_MODELS']:
  93     sources += Split('fast/cpu.cc')
  94
  95 if 'AlphaFullCPU' in env['CPU_MODELS']:
  96     sources += Split('''
  97         o3/2bit_local_pred.cc
  98         o3/alpha_dyn_inst.cc
  99         o3/alpha_cpu.cc
 100         o3/alpha_cpu_builder.cc
 101         o3/bpred_unit.cc
 102         o3/btb.cc
 103         o3/commit.cc
 104         o3/decode.cc
 105         o3/fetch.cc
 106         o3/free_list.cc
 107         o3/cpu.cc
 108         o3/iew.cc
 109         o3/inst_queue.cc
 110         o3/ldstq.cc
 111         o3/mem_dep_unit.cc
 112         o3/ras.cc
 113         o3/rename.cc
 114         o3/rename_map.cc
 115         o3/rob.cc
 116         o3/sat_counter.cc
 117         o3/store_set.cc
 118         o3/tournament_pred.cc
 119         ''')
 120
 121 # FullCPU sources are included from m5/SConscript since they're not
 122 # below this point in the file hierarchy.
 123
 124 # Convert file names to SCons File objects.  This takes care of the
 125 # path relative to the top of the directory tree.
 126 sources = [File(s) for s in sources]
 127
 128 Return('sources')
 129