Make Kconfiglib 2 official

Merge in the 'kconfiglib-2-backup' branch.

1 files changed, 48 insertions, 13 deletions

diff --git a/examples/print_sym_info.py b/examples/print_sym_info.py
index c913358..3ee3c97 100644
--- a/examples/print_sym_info.py
+++ b/examples/print_sym_info.py
@@ -1,18 +1,53 @@
-# Loads a Kconfig and a .config and prints information about a symbol.
+# Loads a Kconfig and a .config and prints a symbol.
+#
+# Usage:
+#
+#   $ make [ARCH=<arch>] scriptconfig SCRIPT=Kconfiglib/examples/print_sym_info.py SCRIPT_ARG=<name>
+#
+# Example output for SCRIPT_ARG=MODULES:
+#
+# menuconfig MODULES
+# 	bool
+# 	prompt "Enable loadable module support"
+# 	option modules
+# 	help
+# 	  Kernel modules are small pieces of compiled code which can
+# 	  be inserted in the running kernel, rather than being
+# 	  permanently built into the kernel.  You use the "modprobe"
+# 	  tool to add (and sometimes remove) them.  If you say Y here,
+# 	  many parts of the kernel can be built as modules (by
+# 	  answering M instead of Y where indicated): this is most
+# 	  useful for infrequently used options which are not required
+# 	  for booting.  For more information, see the man pages for
+# 	  modprobe, lsmod, modinfo, insmod and rmmod.
+# 	  
+# 	  If you say Y here, you will need to run "make
+# 	  modules_install" to put the modules under /lib/modules/
+# 	  where modprobe can find them (you may need to be root to do
+# 	  this).
+# 	  
+# 	  If unsure, say Y.
+# 
+# value = n
+# visibility = y
+# currently assignable values: n, y
+# defined at init/Kconfig:1674
 
-import kconfiglib
+from kconfiglib import Kconfig, TRI_TO_STR
 import sys
 
-# Create a Config object representing a Kconfig configuration. (Any number of
-# these can be created -- the library has no global state.)
-conf = kconfiglib.Config(sys.argv[1])
+if len(sys.argv) < 3:
+    print('Pass symbol name (without "CONFIG_" prefix) with SCRIPT_ARG=<name>')
+    sys.exit(1)
 
-# Load values from a .config file. 'srctree' is an environment variable set by
-# the Linux makefiles to the top-level directory of the kernel tree. It needs
-# to be used here for the script to work with alternative build directories
-# (specified e.g. with O=).
-conf.load_config("$srctree/arch/x86/configs/i386_defconfig")
+kconf = Kconfig(sys.argv[1])
+sym = kconf.syms[sys.argv[2]]
 
-# Print some information about a symbol. (The Config class implements
-# __getitem__() to provide a handy syntax for getting symbols.)
-print(conf["SERIAL_UARTLITE_CONSOLE"])
+print(sym)
+print("value = " + sym.str_value)
+print("visibility = " + TRI_TO_STR[sym.visibility])
+print("currently assignable values: " +
+      ", ".join([TRI_TO_STR[v] for v in sym.assignable]))
+
+for node in sym.nodes:
+    print("defined at {}:{}".format(node.filename, node.linenr))