beremiz

file isExecutable
make attribute CFLAGS and LDFLAGS optional and add default empty value

Actually CFLAGS and LDFLAGS are not required and can be empty.
Without default empty value if target platform in project settings was
set to "Linux" CFLAGS and LDFLAGS was initialized with NoneType.
The result was broken build and it wasn't to save/load project with
such settings.

Traceback (most recent call last):
File "/home/developer/WorkData/PLC/beremiz/beremiz/ProjectController.py", line 956, in _Build
if not builder.build() :
File "/home/developer/WorkData/PLC/beremiz/beremiz/targets/toolchain_gcc.py", line 96, in build
Builder_CFLAGS = ' '.join(self.getBuilderCFLAGS())
TypeError: sequence item 0: expected string, NoneType found
from ..toolchain_gcc import toolchain_gcc
class Xenomai_target(toolchain_gcc):
dlopen_prefix = "./"
extension = ".so"
def getXenoConfig(self, flagsname):
""" Get xeno-config from target parameters """
xeno_config=self.CTRInstance.GetTarget().getcontent().getXenoConfig()
if xeno_config:
from util.ProcessLogger import ProcessLogger
status, result, err_result = ProcessLogger(self.CTRInstance.logger,
xeno_config + " --skin=native --"+flagsname,
no_stdout=True).spin()
if status:
self.CTRInstance.logger.write_error(_("Unable to get Xenomai's %s \n")%flagsname)
return [result.strip()]
return []
def getBuilderLDFLAGS(self):
xeno_ldflags = self.getXenoConfig("ldflags")
return toolchain_gcc.getBuilderLDFLAGS(self) + xeno_ldflags + ["-shared"]
def getBuilderCFLAGS(self):
xeno_cflags = self.getXenoConfig("cflags")
return toolchain_gcc.getBuilderCFLAGS(self) + xeno_cflags + ["-fPIC"]