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build: kconfig: Add new module to modify defconfig files.

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* guix/build/kconfig.scm: New file.
* Makefile.am: Register it.
* gnu/packages/bootloaders.scm (make-u-boot-package)
(make-u-boot-sunxi64-package): Add DEFCONFIGS and CONFIGS arguments.  Remove
dead code.
(u-boot-am335x-boneblack, u-boot-pinebook)
(u-boot-novena,u-boot-rockpro64-rk3399): Simplify packages by using the new
keyword arguments.

Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
Modified-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
This commit is contained in:
Stefan 2022-12-01 09:50:51 -05:00 committed by Maxim Cournoyer
parent 748ec62882
commit a3f638e748
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GPG key ID: 1260E46482E63562
3 changed files with 248 additions and 78 deletions
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1
Makefile.am
View file

@ -237,6 +237,7 @@ MODULES = \
guix/build/waf-build-system.scm \
guix/build/haskell-build-system.scm \
guix/build/julia-build-system.scm \
guix/build/kconfig.scm \
guix/build/linux-module-build-system.scm \
guix/build/store-copy.scm \
guix/build/json.scm \

142
gnu/packages/bootloaders.scm
View file

@ -74,6 +74,7 @@ (define-module (gnu packages bootloaders)
#:use-module (guix utils)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:use-module (ice-9 optargs)
#:use-module (ice-9 regex))
(define unifont
@ -688,8 +689,9 @@ (define-public u-boot-tools
also initializes the boards (RAM etc). This package provides its
board-independent tools.")))
(define-public (make-u-boot-package board triplet)
"Returns a u-boot package for BOARD cross-compiled for TRIPLET."
(define*-public (make-u-boot-package board triplet #:key defconfig configs)
"Returns a u-boot package for BOARD cross-compiled for TRIPLET with the
optional DEFCONFIG file and optional configuration changes from CONFIGS."
(let ((same-arch? (lambda ()
(string=? (%current-system)
(gnu-triplet->nix-system triplet)))))
@ -707,8 +709,11 @@ (define-public (make-u-boot-package board triplet)
(arguments
`(#:modules ((ice-9 ftw)
(srfi srfi-1)
(guix build utils)
(guix build gnu-build-system))
(guix build gnu-build-system)
(guix build kconfig)
(guix build utils))
#:imported-modules (,@%gnu-build-system-modules
(guix build kconfig))
#:test-target "test"
#:make-flags
(list "HOSTCC=gcc"
@ -719,9 +724,19 @@ (define-public (make-u-boot-package board triplet)
(modify-phases %standard-phases
(replace 'configure
(lambda* (#:key outputs make-flags #:allow-other-keys)
(let ((config-name (string-append ,board "_defconfig")))
(if (file-exists? (string-append "configs/" config-name))
(apply invoke "make" `(,@make-flags ,config-name))
(let* ((config-name (string-append ,board "_defconfig"))
(config-file (string-append "configs/" config-name))
(defconfig ,defconfig)
(configs ',configs))
(when defconfig
;; Replace the board-specific defconfig with the given one.
(copy-file defconfig config-file))
(if (file-exists? config-file)
(begin
(when configs
(modify-defconfig config-file configs))
(apply invoke "make" `(,@make-flags ,config-name))
(verify-config ".config" config-file))
(begin
(display "Invalid board name. Valid board names are:"
(current-error-port))
@ -775,7 +790,12 @@ (define-public u-boot-malta
(make-u-boot-package "malta" "mips64el-linux-gnuabi64"))
(define-public u-boot-am335x-boneblack
(let ((base (make-u-boot-package "am335x_evm" "arm-linux-gnueabihf")))
(let ((base (make-u-boot-package
"am335x_evm" "arm-linux-gnueabihf"
;; Patch out other device trees to build an image small enough
;; to fit within typical partitioning schemes where the first
;; partition begins at sector 2048.
#:configs '("CONFIG_OF_LIST=\"am335x-evm am335x-boneblack\""))))
(package
(inherit base)
(name "u-boot-am335x-boneblack")
@ -784,43 +804,28 @@ (define-public u-boot-am335x-boneblack
This U-Boot is built for the BeagleBone Black, which was removed upstream,
adjusted from the am335x_evm build with several device trees removed so that
it fits within common partitioning schemes.")
(arguments
(substitute-keyword-arguments (package-arguments base)
((#:phases phases)
`(modify-phases ,phases
(add-after 'unpack 'patch-defconfig
;; Patch out other devicetrees to build image small enough to
;; fit within typical partitioning schemes where the first
;; partition begins at sector 2048.
(lambda _
(substitute* "configs/am335x_evm_defconfig"
(("CONFIG_OF_LIST=.*$") "CONFIG_OF_LIST=\"am335x-evm am335x-boneblack\"\n"))
#t)))))))))
it fits within common partitioning schemes."))))
(define-public u-boot-am335x-evm
(make-u-boot-package "am335x_evm" "arm-linux-gnueabihf"))
(define-public (make-u-boot-sunxi64-package board triplet)
(let ((base (make-u-boot-package board triplet)))
(define*-public (make-u-boot-sunxi64-package board triplet
#:key defconfig configs)
(let ((base (make-u-boot-package
board triplet #:defconfig defconfig #:configs configs)))
(package
(inherit base)
(arguments
(substitute-keyword-arguments (package-arguments base)
((#:phases phases)
`(modify-phases ,phases
(add-after 'unpack 'set-environment
(lambda* (#:key native-inputs inputs #:allow-other-keys)
(let ((bl31
(string-append
(assoc-ref (or native-inputs inputs) "firmware")
"/bl31.bin")))
(setenv "BL31" bl31)
;; This is necessary when we're using the bundled dtc.
;(setenv "PATH" (string-append (getenv "PATH") ":"
; "scripts/dtc"))
)
#t))))))
(substitute-keyword-arguments (package-arguments base)
((#:phases phases)
`(modify-phases ,phases
(add-after 'unpack 'set-environment
(lambda* (#:key native-inputs inputs #:allow-other-keys)
(let ((bl31
(string-append
(assoc-ref (or native-inputs inputs) "firmware")
"/bl31.bin")))
(setenv "BL31" bl31))))))))
(native-inputs
`(("firmware" ,arm-trusted-firmware-sun50i-a64)
,@(package-native-inputs base))))))
@ -832,20 +837,11 @@ (define-public u-boot-pine64-lts
(make-u-boot-sunxi64-package "pine64-lts" "aarch64-linux-gnu"))
(define-public u-boot-pinebook
(let ((base (make-u-boot-sunxi64-package "pinebook" "aarch64-linux-gnu")))
(package
(inherit base)
(arguments
(substitute-keyword-arguments (package-arguments base)
((#:phases phases)
`(modify-phases ,phases
(add-after 'unpack 'patch-pinebook-config
;; Fix regression with LCD video output introduced in 2020.01
;; https://patchwork.ozlabs.org/patch/1225130/
(lambda _
(substitute* "configs/pinebook_defconfig"
(("CONFIG_VIDEO_BRIDGE_ANALOGIX_ANX6345=y") "CONFIG_VIDEO_BRIDGE_ANALOGIX_ANX6345=y\nCONFIG_VIDEO_BPP32=y"))
#t)))))))))
(make-u-boot-sunxi64-package
"pinebook" "aarch64-linux-gnu"
;; Fix regression with LCD video output introduced in 2020.01
;; https://patchwork.ozlabs.org/patch/1225130/
#:configs '("CONFIG_VIDEO_BPP32=y")))
(define-public u-boot-bananapi-m2-ultra
(make-u-boot-package "Bananapi_M2_Ultra" "arm-linux-gnueabihf"))
@ -896,25 +892,18 @@ (define-public u-boot-mx6cuboxi
(make-u-boot-package "mx6cuboxi" "arm-linux-gnueabihf"))
(define-public u-boot-novena
(let ((base (make-u-boot-package "novena" "arm-linux-gnueabihf")))
(let ((base (make-u-boot-package
"novena" "arm-linux-gnueabihf"
;; Patch configuration to disable loading u-boot.img from FAT
;; partition, allowing it to be installed at a device offset.
#:configs '("# CONFIG_SPL_FS_FAT is not set"))))
(package
(inherit base)
(description "U-Boot is a bootloader used mostly for ARM boards. It
also initializes the boards (RAM etc).
This U-Boot is built for Novena. Be advised that this version, contrary
to Novena upstream, does not load u-boot.img from the first partition.")
(arguments
(substitute-keyword-arguments (package-arguments base)
((#:phases phases)
`(modify-phases ,phases
(add-after 'unpack 'patch-novena-defconfig
;; Patch configuration to disable loading u-boot.img from FAT partition,
;; allowing it to be installed at a device offset.
(lambda _
(substitute* "configs/novena_defconfig"
(("CONFIG_SPL_FS_FAT=y") "# CONFIG_SPL_FS_FAT is not set"))
#t)))))))))
to Novena upstream, does not load u-boot.img from the first partition."))))
(define-public u-boot-cubieboard
(make-u-boot-package "Cubieboard" "arm-linux-gnueabihf"))
@ -1002,7 +991,15 @@ (define-public u-boot-firefly-rk3399
,@(package-native-inputs base))))))
(define-public u-boot-rockpro64-rk3399
(let ((base (make-u-boot-package "rockpro64-rk3399" "aarch64-linux-gnu")))
(let ((base (make-u-boot-package "rockpro64-rk3399" "aarch64-linux-gnu"
#:configs '("CONFIG_USB=y"
"CONFIG_AHCI=y"
"CONFIG_AHCI_PCI=y"
"CONFIG_SATA=y"
"CONFIG_SATA_SIL=y"
"CONFIG_SCSI=y"
"CONFIG_SCSI_AHCI=y"
"CONFIG_DM_SCSI=y"))))
(package
(inherit base)
(arguments
@ -1013,19 +1010,8 @@ (define-public u-boot-rockpro64-rk3399
(lambda* (#:key inputs #:allow-other-keys)
(setenv "BL31"
(search-input-file inputs "/bl31.elf"))))
(add-after 'unpack 'patch-config
(add-after 'unpack 'patch-header
(lambda _
(substitute* "configs/rockpro64-rk3399_defconfig"
(("CONFIG_USB=y") "\
CONFIG_USB=y
CONFIG_AHCI=y
CONFIG_AHCI_PCI=y
CONFIG_SATA=y
CONFIG_SATA_SIL=y
CONFIG_SCSI=y
CONFIG_SCSI_AHCI=y
CONFIG_DM_SCSI=y
"))
(substitute* "include/config_distro_bootcmd.h"
(("\"scsi_need_init=false")
"\"setenv scsi_need_init false")

183
guix/build/kconfig.scm Normal file
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@ -0,0 +1,183 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2020 Stefan <stefan-guix@vodafonemail.de>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix 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 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix 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 GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (guix build kconfig)
#:use-module (ice-9 rdelim)
#:use-module (ice-9 regex)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:export (modify-defconfig
verify-config))
;; Commentary:
;;
;; Builder-side code to modify configurations for the Kconfig build system as
;; used by Linux and U-Boot.
;;
;; Code:
(define (config-string->pair config-string)
"Parse a configuration string like \"CONFIG_EXAMPLE=m\" into a key-value pair.
An error is thrown for invalid configurations.
\"CONFIG_A=y\" -> '(\"CONFIG_A\" . \"y\")
\"CONFIG_B=\\\"\\\"\" -> '(\"CONFIG_B\" . \"\\\"\\\"\")
\"CONFIG_C=\" -> '(\"CONFIG_C\" . \"\")
\"# CONFIG_E is not set\" -> '(\"CONFIG_E\" . #f)
\"CONFIG_D\" -> '(\"CONFIG_D\" . #f)
\"# Any comment\" -> '(#f . \"# Any comment\")
\"\" -> '(#f . \"\")
\"# CONFIG_E=y\" -> (error \"Invalid configuration\")
\"CONFIG_E is not set\" -> (error \"Invalid configuration\")
\"Anything else\" -> (error \"Invalid configuration\")"
(define config-regexp
(make-regexp
;; (match:substring (string-match "=(.*)" "=") 1) returns "", but the
;; pattern "=(.+)?" makes it return #f instead. From a "CONFIG_A=" we like
;; to get "", which later emits "CONFIG_A=" again.
(string-append "^ *(#[\\t ]*)?(CONFIG_[a-zA-Z0-9_]+)([\\t ]*="
"[\\t ]*(.*)|([\\t ]+is[\\t ]+not[\\t ]+set))?$")))
(define config-comment-regexp
(make-regexp "^([\\t ]*(#.*)?)$"))
(let ((match (regexp-exec config-regexp (string-trim-right config-string))))
(if match
(let* ((comment (match:substring match 1))
(key (match:substring match 2))
(unset (match:substring match 5))
(value (and (not comment)
(not unset)
(match:substring match 4))))
(if (eq? (not comment) (not unset))
;; The key is uncommented and set or commented and unset.
(cons key value)
;; The key is set or unset ambigiously.
(error (format #f "invalid configuration, did you mean \"~a\"?"
(pair->config-string (cons key #f)))
config-string)))
;; This is not a valid or ambigious config-string, but maybe a
;; comment.
(if (regexp-exec config-comment-regexp config-string)
(cons #f config-string) ;keep valid comments
(error "Invalid configuration" config-string)))))
(define (pair->config-string pair)
"Convert a PAIR back to a config-string."
(let* ((key (first pair))
(value (cdr pair)))
(if (string? key)
(if (string? value)
(string-append key "=" value)
(string-append "# " key " is not set"))
value)))
(define (defconfig->alist defconfig)
"Convert the content of a DEFCONFIG (or .config) file into an alist."
(with-input-from-file defconfig
(lambda ()
(let loop ((alist '())
(line (read-line)))
(if (eof-object? line)
;; Building the alist is done, now check for duplicates.
;; Note: the filter invocation is used to remove comments.
(let loop ((keys (map first (filter first alist)))
(duplicates '()))
(if (null? keys)
;; The search for duplicates is done.
;; Return the alist or throw an error on duplicates.
(if (null? duplicates)
alist
(error
(format #f "duplicate configurations in ~a" defconfig)
duplicates))
;; Continue the search for duplicates.
(loop (cdr keys)
(if (member (first keys) (cdr keys))
(cons (first keys) duplicates)
duplicates))))
;; Build the alist.
(loop (cons (config-string->pair line) alist)
(read-line)))))))
(define (modify-defconfig defconfig configs)
"This function can modify a given DEFCONFIG (or .config) file by adding,
changing or removing the list of strings in CONFIGS. This allows customization
of Kconfig based projects like the kernel Linux or the bootloader 'Das U-Boot'.
These are examples for CONFIGS to add, change or remove configurations to/from
DEFCONFIG:
'(\"CONFIG_A=\\\"a\\\"\"
\"CONFIG_B=0\"
\"CONFIG_C=y\"
\"CONFIG_D=m\"
\"CONFIG_E=\"
\"# CONFIG_G is not set\"
;; For convenience this abbrevation can be used for not set configurations.
\"CONFIG_F\")
Instead of a list, CONFIGS can be a string with one configuration per line."
(let* (;; Split the configs into a list of single configurations. Both a
;; string and or a list of strings is supported, each with newlines
;; to separate configurations.
(config-pairs (map config-string->pair
(append-map (cut string-split <> #\newline)
(if (string? configs)
(list configs)
configs))))
;; Generate a blocklist from all valid keys in config-pairs.
(blocklist (delete #f (map first config-pairs)))
;; Generate an alist from the defconfig without the keys in blocklist.
(filtered-defconfig-pairs (remove (lambda (pair)
(member (first pair) blocklist))
(defconfig->alist defconfig))))
(with-output-to-file defconfig
(lambda ()
(for-each (lambda (pair)
(display (pair->config-string pair))
(newline))
(append filtered-defconfig-pairs config-pairs))))))
(define (verify-config config defconfig)
"Verify that the CONFIG file contains all configurations from the DEFCONFIG
file. When the verification fails, raise an error with the mismatching keys
and their values."
(let* ((config-pairs (defconfig->alist config))
(defconfig-pairs (defconfig->alist defconfig))
(mismatching-pairs
(remove (lambda (pair)
;; Remove all configurations, whose values are #f and
;; whose keys are not in config-pairs, as not in
;; config-pairs means unset, ...
(and (not (cdr pair))
(not (assoc-ref config-pairs (first pair)))))
;; ... from the defconfig-pairs different to config-pairs.
(lset-difference equal?
;; Remove comments by filtering with first.
(filter first defconfig-pairs)
config-pairs))))
(unless (null? mismatching-pairs)
(error (format #f "Mismatching configurations in ~a and ~a"
config defconfig)
(map (lambda (mismatching-pair)
(let* ((key (first mismatching-pair))
(defconfig-value (cdr mismatching-pair))
(config-value (assoc-ref config-pairs key)))
(cons key (list (list config-value defconfig-value)))))
mismatching-pairs)))))