third_party/waf/waflib/extras/msvc_pdb.py

   1 #!/usr/bin/env python
   2 # encoding: utf-8
   3 # Rafaël Kooi 2019
   4
   5 from waflib import TaskGen
   6
   7 @TaskGen.feature('c', 'cxx', 'fc')
   8 @TaskGen.after_method('propagate_uselib_vars')
   9 def add_pdb_per_object(self):
  10         """For msvc/fortran, specify a unique compile pdb per object, to work
  11         around LNK4099. Flags are updated with a unique /Fd flag based on the
  12         task output name. This is separate from the link pdb.
  13         """
  14         if not hasattr(self, 'compiled_tasks'):
  15                 return
  16
  17         link_task = getattr(self, 'link_task', None)
  18
  19         for task in self.compiled_tasks:
  20                 if task.inputs and task.inputs[0].name.lower().endswith('.rc'):
  21                         continue
  22
  23                 add_pdb = False
  24                 for flagname in ('CFLAGS', 'CXXFLAGS', 'FCFLAGS'):
  25                         # several languages may be used at once
  26                         for flag in task.env[flagname]:
  27                                 if flag[1:].lower() == 'zi':
  28                                         add_pdb = True
  29                                         break
  30
  31                 if add_pdb:
  32                         node = task.outputs[0].change_ext('.pdb')
  33                         pdb_flag = '/Fd:' + node.abspath()
  34
  35                         for flagname in ('CFLAGS', 'CXXFLAGS', 'FCFLAGS'):
  36                                 buf = [pdb_flag]
  37                                 for flag in task.env[flagname]:
  38                                         if flag[1:3] == 'Fd' or flag[1:].lower() == 'fs' or flag[1:].lower() == 'mp':
  39                                                 continue
  40                                         buf.append(flag)
  41                                 task.env[flagname] = buf
  42
  43                         if link_task and not node in link_task.dep_nodes:
  44                                 link_task.dep_nodes.append(node)
  45                         if not node in task.outputs:
  46                                 task.outputs.append(node)