#
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# SLEPc - Scalable Library for Eigenvalue Problem Computations
# Copyright (c) 2002-2010, Universidad Politecnica de Valencia, Spain
#
# This file is part of SLEPc.
#
# SLEPc is free software: you can redistribute it and/or modify it under the
# terms of version 3 of the GNU Lesser General Public License as published by
# the Free Software Foundation.
#
# SLEPc is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
# more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with SLEPc. If not, see <http://www.gnu.org/licenses/>.
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
#
import os
import sys
import commands
import petscconf
import log
def LinkWithOutput(functions,callbacks,flags):
code = '#include "petscksp.h"\n'
code += 'EXTERN_C_BEGIN\n'
for f in functions:
code += 'extern int\n' + f + '();\n'
code += 'EXTERN_C_END\n'
for c in callbacks:
code += 'int '+ c + '() { return 0; } \n'
code += 'int main() {\n'
code += 'PetscInitialize(PETSC_NULL,PETSC_NULL,PETSC_NULL,PETSC_NULL);\n'
code += 'VecCreate(PETSC_NULL,PETSC_NULL);\n'
code += 'MatCreate(PETSC_NULL,PETSC_NULL);\n'
code += 'KSPCreate(PETSC_NULL,PETSC_NULL);\n'
for f in functions:
code += f + '();\n'
code += 'return 0;\n}\n'
os.chdir('config')
cfile = open('checklink.c','w')
cfile.write(code)
cfile.close()
(result, output) = commands.getstatusoutput(petscconf.MAKE + ' checklink TESTFLAGS="'+str.join(' ',flags)+'"')
if os.path.exists('checklink.o'):
os.unlink('checklink.o')
os.chdir(os.pardir)
if result:
return (0,code + output)
else:
return (1,code + output)
def Link(functions,callbacks,flags):
(result, output) = LinkWithOutput(functions,callbacks,flags)
log.Write(output)
return result
def FortranLink(functions,callbacks,flags):
output = '\n=== With linker flags: '+str.join(' ',flags)
f = []
for i in functions:
f.append(i+'_')
c = []
for i in callbacks:
c.append(i+'_')
(result, output1) = LinkWithOutput(f,c,flags)
output1 = '\n====== With underscore Fortran names\n' + output1
if result: return ('UNDERSCORE',output1)
f = []
for i in functions:
f.append(i.upper())
c = []
for i in callbacks:
c.append(i.upper())
(result, output2) = LinkWithOutput(f,c,flags)
output2 = '\n====== With capital Fortran names\n' + output2
if result: return ('CAPS',output2)
(result, output3) = LinkWithOutput(functions,callbacks,flags)
output3 = '\n====== With unmodified Fortran names\n' + output3
if result: return ('STDCALL',output3)
return ('',output + output1 + output2 + output3)
def GenerateGuesses(name):
installdirs = ['/usr/local','/opt']
if 'HOME' in os.environ:
installdirs.insert(0,os.environ['HOME'])
dirs = []
for i in installdirs:
dirs = dirs + [i + '/lib']
for d in [name,name.upper(),name.lower()]:
dirs = dirs + [i + '/' + d]
dirs = dirs + [i + '/' + d + '/lib']
dirs = dirs + [i + '/lib/' + d]
for d in dirs[:]:
if not os.path.exists(d):
dirs.remove(d)
dirs = [''] + dirs
return dirs
def FortranLib(conf,name,dirs,libs,functions,callbacks = []):
log.Write('='*80)
log.Println('Checking '+name+' library...')
error = ''
mangling = ''
for d in dirs:
for l in libs:
if d:
flags = ['-L' + d] + l
else:
flags = l
(mangling, output) = FortranLink(functions,callbacks,flags)
error += output
if mangling: break
if mangling: break
if mangling:
log.Write(output)
else:
log.Write(error)
log.Println('ERROR: Unable to link with library '+ name)
print 'ERROR: In directories',dirs
print 'ERROR: With flags',libs,
log.Exit('')
conf.write('SLEPC_HAVE_' + name + ' = -DSLEPC_HAVE_' + name + ' -DSLEPC_' + name + '_HAVE_'+mangling+'\n')
conf.write(name + '_LIB = '+str.join(' ',flags)+'\n')
return flags