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#!/usr/bin/python3
# Build Realtime Modbus modules to use the Mesa FPGA card PktUART
# Based on parts of halcompile
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
import sys
import os
import tempfile
def usage(exitval=0):
print("""Build and install Modbus components that use the Mesa PktUART
Usage:
modcompile device.mod Compile and install a driver defined in
device.h
modcompile all Compile and install all definition files
in this directory.
""")
raise SystemExit(exitval)
modinc = None
def find_modinc():
global modinc
if modinc: return modinc
d = os.path.abspath(os.path.dirname(os.path.dirname(sys.argv[0])))
for e in ['src', 'etc/linuxcnc', '/etc/linuxcnc', 'share/linuxcnc']:
e = os.path.join(d, e, 'Makefile.modinc')
if os.path.exists(e):
modinc = e
return e
raise SystemExit("Unable to locate Makefile.modinc")
if len(sys.argv) < 2:
usage(0)
if sys.argv[1] == "all":
names = [f for f in os.listdir(".") if f.endswith(".mod")]
else:
names = [sys.argv[1]]
tempdir = tempfile.mkdtemp()
BASE = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), ".."))
print(os.path.join(tempdir, "mesa_modbus.c"))
os.symlink(os.path.join(BASE, "share", "linuxcnc", "mesa_modbus.c.tmpl"), os.path.join(tempdir, "mesa_modbus.c"))
for f in names:
b = os.path.splitext(os.path.basename(f))[0]
# The module definition is #included as mesa_modbus.h
m = open(os.path.join(tempdir, "Makefile"), "w")
print("obj-m += %s.o" % b,file=m)
print("%s-objs:=mesa_modbus.o" % b,file=m)
print("include %s" % find_modinc(), file=m)
print("EXTRA_CFLAGS += -I%s" % tempdir, file=m)
print("EXTRA_CFLAGS += -DMODFILE=%s" % os.path.abspath(f), file=m)
print("EXTRA_CFLAGS += -D_COMP_NAME_=%s" % b, file=m)
m.close()
os.system("touch mesa_modbus.c") # Force a recompile
result = os.system("cd %s && make -S modules install" % tempdir)
if result != 0:
raise SystemExit(os.WEXITSTATUS(result) or 1)
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