1  #
 2  # Copyright (C) 2008-2020 Advanced Micro Devices, Inc. All rights reserved.
 3  #
 4  # Redistribution and use in source and binary forms, with or without modification,
 5  # are permitted provided that the following conditions are met:
 6  # 1. Redistributions of source code must retain the above copyright notice,
 7  #    this list of conditions and the following disclaimer.
 8  # 2. Redistributions in binary form must reproduce the above copyright notice,
 9  #    this list of conditions and the following disclaimer in the documentation
10  #    and/or other materials provided with the distribution.
11  # 3. Neither the name of the copyright holder nor the names of its contributors
12  #    may be used to endorse or promote products derived from this software without
13  #    specific prior written permission.
14  #
15  # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
16  # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17  # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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20  # BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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23  # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24  # POSSIBILITY OF SUCH DAMAGE.
25  
26  # Inherit global environment
27  Import('env')
28  from os.path import join as joinpath
29  
30  e = env.Clone()
31  
32  # These rearrangements are not value-safe:
33  #	 (a ⊕ b) ⊕ c ⇒ a ⊕ (b ⊕ c)
34  #	 a ⊗ (b ⊕ c) ⇒ (a ⊗ b) ⊕ (a ⊕ c)
35  #
36  # To Disallow these changes in gcc remove -ffast-math
37  if '-ffast-math' in e['CFLAGS']:
38      e['CFLAGS'].remove('-ffast-math')
39  
40  e.Append(
41      CFLAGS = ['-fPIC']
42  )
43  
44  try:
45      dbg_mode=env['debug_mode']
46  except KeyError as err:
47      print("Keyerror, debug_mode not found, setting to none", err)
48      dbg_mode='none'
49  
50  if dbg_mode == 'libs' or dbg_mode == 'all':
51      e.Append(
52          CCFLAGS = ['-g']
53         )
54      # remove all optimizations on command line
55      opt_list=["-O%s"%x for x in range(1, 10)]
56      opt_list.append('-Os')
57      for opt in opt_list:
58          try:
59              e['CFLAGS'].remove(opt)
60          except ValueError as err:
61              pass
62  else:
63      e.Append(
64          CCFLAGS = ['-O3'],
65      )
66  
67  experiment_src=[
68  ]
69  
70  source = Glob('*.c', exclude=experiment_src)
71  #source = Glob('*.c')
72  
73  objs = e.StaticObject(source)
74  
75  Return('objs')