diff options
Diffstat (limited to 'kconfiglib.py')
| -rw-r--r-- | kconfiglib.py | 33 |
1 files changed, 25 insertions, 8 deletions
diff --git a/kconfiglib.py b/kconfiglib.py index 770614a..c0746ec 100644 --- a/kconfiglib.py +++ b/kconfiglib.py @@ -44,6 +44,13 @@ The targets added by the Makefile patch are described in the following sections. +make kmenuconfig +---------------- + +This target runs the curses menuconfig interface with Python 3 (Python 2 is +currently not supported for the menuconfig). + + make [ARCH=<arch>] iscriptconfig -------------------------------- @@ -75,12 +82,23 @@ argument, if given. See the examples/ subdirectory for example scripts. +make dumpvarsconfig +------------------- + +This target prints a list of all environment variables referenced from the +Kconfig files, together with their values. See the +Kconfiglib/examples/dumpvars.py script. + +Only environment variables that are referenced via the Kconfig preprocessor +$(FOO) syntax are included. The preprocessor was added in Linux 4.18. + + Using Kconfiglib without the Makefile targets ============================================= The make targets are only needed to pick up environment variables exported from the Kbuild makefiles and referenced inside Kconfig files, via e.g. -'source "arch/$(SRCARCH)/Kconfig" and '$(shell,...)'. +'source "arch/$(SRCARCH)/Kconfig" and commands run via '$(shell,...)'. These variables are referenced as of writing (Linux 4.18), together with sample values: @@ -94,6 +112,12 @@ values: HOSTCXX (g++) CC_VERSION_TEXT (gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0) +Older kernels only reference ARCH, SRCARCH, and KERNELVERSION. + +If your kernel is recent enough (4.18+), you can get a list of referenced +environment variables via 'make dumpvarsconfig' (see above). Note that this +command is added by the Makefile patch. + To run Kconfiglib without the Makefile patch, set the environment variables manually: @@ -104,13 +128,6 @@ manually: Search the top-level Makefile for "Additional ARCH settings" to see other possibilities for ARCH and SRCARCH. -To see a list of all referenced environment variables together with their -values, run this code from e.g. 'make iscriptconfig': - - import os - for var in kconf.env_vars: - print(var, os.environ[var]) - Intro to symbol values ====================== |