[PATCH 6/6] waf: Add configurations with different modules.

Christian Mauderer christian.mauderer at embedded-brains.de
Fri Apr 6 12:26:48 UTC 2018


This allows multiple build configurations (buildsets) with different
modules enabled.

Update #3351
---
 CONTRIBUTING.md      |   7 ++-
 README.waf           |   3 +-
 builder.py           |  13 ++---
 buildset/default.ini |  58 ++++++++++++++++++++++
 buildset/sample.ini  |  10 ++++
 libbsd.py            |   2 +-
 rtems_waf            |   2 +-
 waf_libbsd.py        |   9 ----
 wscript              | 136 +++++++++++++++++++++++++++++++++++++++++++++------
 9 files changed, 203 insertions(+), 37 deletions(-)
 create mode 100644 buildset/default.ini
 create mode 100644 buildset/sample.ini

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index eddefe98..9e6ee83c 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -67,8 +67,7 @@ freebsd-to-rtems.py [args]
 ```
 
 In its default mode of operation, freebsd-to-rtems.py is used to copy code
-from FreeBSD to the rtems-libbsd tree and perform transformations.  In forward
-mode, the script may be requested to just generate the Waf script.
+from FreeBSD to the rtems-libbsd tree and perform transformations.
 
 In *reverse mode*, this script undoes those transformations and copies
 the source code back to the *master* FreeBSD tree. This allows us to do
@@ -126,9 +125,9 @@ How to import code from FreeBSD
 * Run `./freebsd-to-rtems.py -R`
 * Run `./freebsd-to-rtems.py`
 * Run `git status` and make sure your working directory is clean.  If you see modified files, then the `freebsd-to-rtems.py` script needs to be fixed first.
-* Add the files to import to `libbsd.py`.
+* Add the files to import to `libbsd.py` and your intended build set (for example `buildset/default.ini`.
 * Run `./freebsd-to-rtems.py`
-* Immediately check in the imported files without the changes to `libbsd_waf.py`.  Do not touch the imported files yourself at this point.
+* Immediately check in the imported files without the changes to `libbsd.py` and the buildsets.  Do not touch the imported files yourself at this point.
 * Port the imported files to RTEMS.  See 'Rules for Modifying FreeBSD Source'.
 * Add a test to the testsuite if possible.
 * Run `./create-kernel-namespace.sh` if you imported kernel space headers.  Add only your new defines via `git add -p rtemsbsd/include/machine/rtems-bsd-kernel-namespace.h`.
diff --git a/README.waf b/README.waf
index dddc04a4..485a1899 100644
--- a/README.waf
+++ b/README.waf
@@ -73,7 +73,8 @@ cd rtems-libbsd
 git submodule init
 git submodule update rtems_waf
 waf configure --prefix="$sandbox/rtems-4.12" \
-  --rtems-bsps=arm/xilinx_zynq_a9_qemu
+  --rtems-bsps=arm/xilinx_zynq_a9_qemu \
+  --buildset=buildset/default.ini
 waf
 waf install
 qemu-system-arm -no-reboot -serial null -serial mon:stdio -net none \
diff --git a/builder.py b/builder.py
index bb5791a8..c968e05c 100755
--- a/builder.py
+++ b/builder.py
@@ -44,6 +44,7 @@ import getopt
 import filecmp
 import difflib
 import codecs
+import copy
 
 #
 # Global controls.
@@ -487,15 +488,11 @@ class Module(object):
     def __init__(self, manager, name, enabled = True):
         self.manager = manager
         self.name = name
-        self.enabled = enabled
         self.conditionalOn = "none"
         self.files = []
         self.cpuDependentSourceFiles = {}
         self.dependencies = []
 
-    def isEnabled(self):
-        return self.enabled
-
     def initCPUDependencies(self, cpu):
         if cpu not in self.cpuDependentSourceFiles:
             self.cpuDependentSourceFiles[cpu] = []
@@ -664,15 +661,19 @@ class ModuleManager(object):
             self.modules[m].processSource(direction)
 
     def setConfiguration(self, config):
-        self.configuration = config
+        self.configuration = copy.deepcopy(config)
 
     def getConfiguration(self):
         return self.configuration
 
+    def updateConfiguration(self, config):
+        self.configuration.update(config)
+
     def setModuleConfigiuration(self):
         mods = sorted(self.modules.keys())
         self.configuration['modules'] = mods
-        self.configuration['modules-enabled'] = [m for m in mods if self.modules[m].isEnabled()]
+        # Enabled modules are overwritten by config file. Default to all.
+        self.configuration['modules-enabled'] = mods
 
     def generateBuild(self, only_enabled=True):
         modules_to_process = self.getEnabledModules()
diff --git a/buildset/default.ini b/buildset/default.ini
new file mode 100644
index 00000000..15b57df4
--- /dev/null
+++ b/buildset/default.ini
@@ -0,0 +1,58 @@
+#
+# Default configuration.
+#
+
+[general]
+name = default
+
+[modules-enabled]
+altq = 1
+base = 1
+cam = 1
+contrib_expat = 1
+contrib_libpcap = 1
+crypto = 1
+crypto_openssl = 1
+dev_input = 1
+dev_net = 1
+dev_nic = 1
+dev_nic_broadcomm = 1
+dev_nic_dc = 1
+dev_nic_e1000 = 1
+dev_nic_fxp = 1
+dev_nic_re = 1
+dev_nic_smc = 1
+dev_usb = 1
+dev_usb_controller = 1
+dev_usb_controller_bbb = 1
+dev_usb_input = 1
+dev_usb_net = 1
+dev_usb_quirk = 1
+dev_usb_serial = 1
+dev_usb_storage = 1
+dev_usb_wlan = 1
+dev_wlan_rtwn = 1
+dhcpcd = 1
+dpaa = 1
+evdev = 1
+fdt = 1
+in_cksum = 1
+ipfw = 1
+mdnsresponder = 1
+mghttpd = 1
+mmc = 1
+mmc_ti = 1
+net = 1
+net80211 = 1
+netinet = 1
+netinet6 = 1
+opencrypto = 1
+pci = 1
+pf = 1
+rtems = 1
+tests = 1
+tty = 1
+user_space = 1
+user_space_wlanstats = 1
+usr_sbin_tcpdump = 1
+usr_sbin_wpa_supplicant = 1
diff --git a/buildset/sample.ini b/buildset/sample.ini
new file mode 100644
index 00000000..f30c1491
--- /dev/null
+++ b/buildset/sample.ini
@@ -0,0 +1,10 @@
+#
+# Currently this is mostly a sample configuration.
+#
+
+[general]
+name = sample
+extends = default.ini
+
+[modules-enabled]
+dev_nic_broadcomm = 0
diff --git a/libbsd.py b/libbsd.py
index e3c0a3ac..a256594e 100644
--- a/libbsd.py
+++ b/libbsd.py
@@ -1996,7 +1996,7 @@ class netinet6(builder.Module):
 class netipsec(builder.Module):
 
     def __init__(self, manager):
-        super(netipsec, self).__init__(manager, type(self).__name__, enabled = False)
+        super(netipsec, self).__init__(manager, type(self).__name__)
 
     def generate(self):
         mm = self.manager
diff --git a/rtems_waf b/rtems_waf
index d793097d..4ef2f41e 160000
--- a/rtems_waf
+++ b/rtems_waf
@@ -1 +1 @@
-Subproject commit d793097d2032ca0ab2d5cf93fa84730865db6c03
+Subproject commit 4ef2f41eb7a6b0fd84791eafff9062da1a9d94c4
diff --git a/waf_libbsd.py b/waf_libbsd.py
index ae8a1ea0..fffdf9fe 100644
--- a/waf_libbsd.py
+++ b/waf_libbsd.py
@@ -295,12 +295,6 @@ class Builder(builder.ModuleManager):
             import pprint
             pprint.pprint(self.data)
 
-    def init(self, ctx):
-        pass
-
-    def options(self, opt):
-        pass
-
     def bsp_configure(self, conf, arch_bsp):
         if 'configure' in self.data:
             for cfg in self.data['configure']:
@@ -310,9 +304,6 @@ class Builder(builder.ModuleManager):
                                includes = conf.env.IFLAGS,
                                mandatory = False)
 
-    def configure(self, conf):
-        pass
-
     def build(self, bld):
         # This is only necessary for build. But it depends on the waflib which
         # is only available in a waf context. But we need the module manager for
diff --git a/wscript b/wscript
index 6c063965..1dacb3b2 100644
--- a/wscript
+++ b/wscript
@@ -44,23 +44,122 @@ except:
 #import libbsd_waf
 import libbsd
 import waf_libbsd
+import os.path
+import runpy
+import sys
+try:
+    import configparser
+except ImportError:
+    import ConfigParser as configparser
+import waflib.Options
+
+builders = {}
+
+BUILDSET_DIR = "buildset"
+BUILDSET_DEFAULT = "buildset/default.ini"
+
+def load_ini(conf, f):
+    ini = configparser.ConfigParser()
+    ini.read(f)
+    if not ini.has_section('general'):
+        conf.fatal("'{}' is missing a general section.".format(f))
+    if not ini.has_option('general', 'name'):
+        conf.fatal("'{}' is missing a general/name.".format(f))
+    if ini.has_option('general', 'extends'):
+        extends = ini.get('general', 'extends')
+        extendfile = None
+        basepath = os.path.dirname(f)
+        if os.path.isfile(os.path.join(basepath, extends)):
+            extendfile = extends
+        elif os.path.isfile(os.path.join(BUILDSET_DIR, extends)):
+            extendfile = os.path.join(BUILDSET_DIR, extends)
+        else:
+            conf.fatal("'{}': Invalid file given for general/extends:'{}'"
+                .format(f, extends))
+        base = load_ini(conf, extendfile)
+        for s in ini.sections():
+            if not base.has_section(s):
+                base.add_section(s)
+            for o in ini.options(s):
+                val = ini.get(s, o)
+                base.set(s, o, val)
+        ini = base
+    return ini
+
+def load_config(conf, f):
+    ini = load_ini(conf, f)
+    config = {}
+
+    config['name'] = ini.get('general', 'name')
 
-builder = None
+    config['modules-enabled'] = []
+    mods = []
+    if ini.has_section('modules-enabled'):
+        mods = ini.options('modules-enabled')
+    for mod in mods:
+        if ini.getboolean('modules-enabled', mod):
+            config['modules-enabled'].append(mod)
+    return config
 
-def create_builder():
-    global builder
-    if builder is None:
+def check_buildsets(ctx, buildset_opt):
+    buildsets = []
+    if buildset_opt == []:
+        buildset_opt.append(BUILDSET_DEFAULT)
+    for bs in buildset_opt:
+        if os.path.isdir(bs):
+            for f in os.listdir(bs):
+                if f[-4:] == ".ini":
+                    buildsets += [os.path.join(bs,f)]
+        else:
+            for f in bs.split(','):
+                buildsets += [f]
+    return buildsets
+
+def bsp_init(ctx, env, contexts):
+    buildsets = []
+    if 'buildset' in env.options:
+        buildsets = check_buildsets(ctx, env.options['buildset'])
+    else:
+        buildsets = check_buildsets(ctx, [BUILDSET_DEFAULT])
+    bsnames = []
+
+    global builders
+
+    for bs in buildsets:
+        # create builder objects
         builder = waf_libbsd.Builder()
         libbsd.load(builder)
+        bsconfig = load_config(ctx, bs)
+        bsname = bsconfig['name']
+        bsnames += [bsname]
+        builder.updateConfiguration(bsconfig)
         builder.generate(rtems_version)
+        builders[bsname]=builder
+
+        # Update the contextes for build variants
+        for y in contexts:
+            newcmd = y.cmd + '-' + bsname
+            newvariant = y.variant + '-' + bsname
+            class context(y):
+                cmd = newcmd
+                variant = newvariant
+                libbsd_buildset_name = bsname
+
+    # Transform the commands to per build variant commands
+    commands = []
+    for cmd in waflib.Options.commands:
+        if cmd.startswith(('build', 'clean', 'install')):
+            for bsname in bsnames:
+                commands += [cmd + '-' + bsname]
+        else:
+            commands += [cmd]
+    waflib.Options.commands = commands
 
 def init(ctx):
-    create_builder();
-    rtems.init(ctx, version = rtems_version, long_commands = True)
-    builder.init(ctx)
+    rtems.init(ctx, version = rtems_version, long_commands = True,
+               bsp_init = bsp_init)
 
 def options(opt):
-    create_builder();
     rtems.options(opt)
     opt.add_option("--enable-auto-regen",
                    action = "store_true",
@@ -86,20 +185,29 @@ def options(opt):
                    default = "2",
                    dest = "optimization",
                    help = "Set optimization level to OPTIMIZATION (-On compiler flag). Default is 2 (-O2).")
-    builder.options(opt)
+    opt.add_option("--buildset",
+                   action = "append",
+                   default = [],
+                   dest = "buildset",
+                   help = "Select build sets to build. If set to a directory, all .ini file in this directory will be used.")
 
 def bsp_configure(conf, arch_bsp):
-    create_builder();
     conf.check(header_name = "dlfcn.h", features = "c")
     conf.check(header_name = "rtems/pci.h", features = "c", mandatory = False)
     if not rtems.check_posix(conf):
         conf.fatal("RTEMS kernel POSIX support is disabled; configure RTEMS with --enable-posix")
     if rtems.check_networking(conf):
         conf.fatal("RTEMS kernel contains the old network support; configure RTEMS with --disable-networking")
-    builder.bsp_configure(conf, arch_bsp)
+    env = conf.env.derive()
+    for builder in builders:
+        ab = conf.env.RTEMS_ARCH_BSP
+        variant = ab + "-" + builder
+        conf.msg('Configure variant: ', variant)
+        conf.setenv(variant, env)
+        builders[builder].bsp_configure(conf, arch_bsp)
+        conf.setenv(ab)
 
 def configure(conf):
-    create_builder();
     if conf.options.auto_regen:
         conf.find_program("lex", mandatory = True)
         conf.find_program("rpcgen", mandatory = True)
@@ -110,9 +218,7 @@ def configure(conf):
     conf.env.FREEBSD_OPTIONS =conf.options.freebsd_options
     conf.env.OPTIMIZATION = conf.options.optimization
     rtems.configure(conf, bsp_configure)
-    builder.configure(conf)
 
 def build(bld):
-    create_builder();
     rtems.build(bld)
-    builder.build(bld)
+    builders[bld.libbsd_buildset_name].build(bld)
-- 
2.13.6




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