[PATCH 00/32] RFC: Migrate to split config

Simon Glass sjg at chromium.org
Tue Jan 31 16:26:30 CET 2023


U-Boot uses an SPL prefix on CONFIG options to indicate when an option
relates to SPL. For example, while CONFIG_TEXT_BASE is the text base for
U-Boot proper, CONFIG_SPL_TEXT_BASE is the text base for SPL.

Within the code it is possible do things like CONFIG_VAL(TEXT_BASE) to
get that value. It returns the appropriate option, depending on the phase
being built.

The same applies for boolean options, like CONFIG_BLK and CONFIG_SPL_BLK
but in that case we use CONFIG_IS_ENABLED(BLK) to obtain the value.

For Makefiles we use an SPL_TPL_ macro which evalutes either to empty,
SPL, TPL or even VPL depending on the build phase. So we can do things
like:

   obj-$(CONFIG_$(SPL_TPL_)CLK) += clk-uclass.o

To complicate things a little, some options like CONFIG_ARCH_APPLE do not
have an SPL version, so people have to remember to use IS_ENABLED()
instead of CONFIG_IS_ENABLED(). If the latter is used, the value will be
false.

All of this is rather confusing, since:

- people have to know whether to use IS_ENABLED() or CONFIG_IS_ENABLED()
- the Makefiles are cluttered with $(SPL_TPL_) constructs
- plain use of a CONFIG option (e.g. #ifdef CONFIG_CLK) may be correct in
  some cases but not in others

This series updates U-Boot to use separate config files for each phase of
the build. It drops use of CONFIG_IS_ENABLED() and SPL_TPL_ as well.

For now this series does not fully work due to inconsistencies in the
Kconfig options. Many of these have been fixed [1] [2a] [2b] but more
remain.

This series is available at u-boot-dm/splc-working

[1] https://patchwork.ozlabs.org/project/uboot/list/?series=339004
[2a] https://patchwork.ozlabs.org/project/uboot/list/?series=339199&state=*
[2b] https://patchwork.ozlabs.org/project/uboot/list/?series=339208&state=*



Simon Glass (32):
  fixup: Bugfix for moveconfig
  event: Add Kconfig options for SPL
  bootstd: Add Kconfig options for SPL
  cmd: Add an SPL Kconfig for CMDLINE and HUSH
  boot: Add a Kconfig for SPL_QCOM_PMIC_GPIO
  cros_ec: Add SPL Kconfigs for cros_ec features
  boot: Add a Kconfig for SPL_UT_COMPRESSION
  env: Avoid checking ENV_IS_IN when env disabled
  boot: Add a Kconfig for SPL_AVB_VERIFY
  env: Allow VPL environment to be nowhere
  lib: Add VPL options for SHA1 and SHA256
  sandbox: Tidy up RTC options
  sandbox: Use the generic VPL option to enable VPL
  sandbox: Tidy up I2C options
  fixdep: Add support for VPL
  fixdep: Refactor to make testing easier
  fixdep: Add some tests for parse_config_line()
  test: Add SPL versions of the TEST_KCONFIG options
  kconfig: Add configuration files for noproper and nospl
  kconfig: Refactor code into separate writer functions
  kconfig: Support writing separate SPL files
  Makefile: Include the config for the phase being built
  kconfig: Update CONFIG_IS_ENABLED() for split files
  Makefile: Use empty SPL_ and SPL_TPL_ vars
  Drop use of CONFIG_IS_ENABLED()
  kconfig: Adjust the meaning of CONFIG_IS_ENABLED()
  kconfig: Drop CONFIG_IF_ENABLED_INT()
  kconfig: Drop CONFIG_IS_ENABLED()
  kconfig: drop config_opt_enabled()
  kconfig: Drop CONFIG_VAL()
  kconfig: Move closer to the Linux version
  Makefile: Drop SPL_ and SPL_TPL_ macros

 Makefile                                      |  17 +-
 arch/arc/lib/bootm.c                          |   2 +-
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 arch/arm/cpu/arm946es/start.S                 |   6 +-
 arch/arm/cpu/armv7/Makefile                   |   2 +-
 arch/arm/cpu/armv7/cache_v7.c                 |   8 +-
 arch/arm/cpu/armv7/cache_v7_asm.S             |   2 +-
 .../cpu/armv7/iproc-common/hwinit-common.c    |   2 +-
 arch/arm/cpu/armv7/ls102xa/cpu.c              |   4 +-
 arch/arm/cpu/armv7/start.S                    |  16 +-
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 arch/arm/cpu/armv8/Makefile                   |   6 +-
 arch/arm/cpu/armv8/cache_v8.c                 |  12 +-
 arch/arm/cpu/armv8/fsl-layerscape/Makefile    |   2 +-
 arch/arm/cpu/armv8/fsl-layerscape/cpu.c       |   8 +-
 arch/arm/cpu/armv8/fsl-layerscape/fdt.c       |  10 +-
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 arch/arm/cpu/armv8/fsl-layerscape/soc.c       |   2 +-
 arch/arm/cpu/armv8/fsl-layerscape/spl.c       |   2 +-
 arch/arm/include/asm/arch-am33xx/chilisom.h   |   2 +-
 .../asm/arch-fsl-layerscape/fsl_icid.h        |   2 +-
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 arch/arm/mach-k3/common.c                     |   4 +-
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 arch/arm/mach-stm32mp/spl.c                   |   2 +-
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 board/siemens/common/factoryset.c             |  14 +-
 board/siemens/common/factoryset.h             |   2 +-
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 board/siemens/iot2050/board.c                 |   2 +-
 board/somlabs/visionsom-6ull/visionsom-6ull.c |   2 +-
 board/st/common/stm32mp_dfu.c                 |   2 +-
 board/st/stih410-b2260/board.c                |   2 +-
 board/st/stm32mp1/spl.c                       |   4 +-
 board/st/stm32mp1/stm32mp1.c                  |  16 +-
 board/st/stv0991/stv0991.c                    |   2 +-
 board/sunxi/board.c                           |   2 +-
 board/synopsys/hsdk/hsdk.c                    |   2 +-
 board/tcl/sl50/Makefile                       |   2 +-
 board/tcl/sl50/board.c                        |   2 +-
 board/technexion/pico-imx7d/pico-imx7d.c      |   2 +-
 board/ti/am335x/Makefile                      |   2 +-
 board/ti/am335x/board.c                       |   6 +-
 board/ti/am43xx/Makefile                      |   2 +-
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 board/ti/am57xx/board.c                       |   6 +-
 board/ti/am64x/evm.c                          |   4 +-
 board/ti/common/board_detect.c                |   4 +-
 board/ti/dra7xx/evm.c                         |   6 +-
 board/ti/j721e/evm.c                          |   2 +-
 board/ti/ks2_evm/board_k2g.c                  |   2 +-
 board/toradex/apalis-imx8/apalis-imx8.c       |   2 +-
 board/toradex/verdin-imx8mp/spl.c             |   2 +-
 board/tplink/wdr4300/wdr4300.c                |   2 +-
 board/tq/tqma6/tqma6.c                        |   6 +-
 board/udoo/neo/neo.c                          |   2 +-
 board/vscom/baltos/Makefile                   |   2 +-
 board/wandboard/wandboard.c                   |   4 +-
 board/xilinx/common/board.c                   |   4 +-
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 board/xilinx/zynqmp/zynqmp.c                  |  12 +-
 boot/Kconfig                                  |  24 ++
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 boot/bootm.c                                  |  22 +-
 boot/bootm_os.c                               |   2 +-
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 boot/image-board.c                            |  26 +-
 boot/image-fdt.c                              |  12 +-
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 boot/image-fit.c                              |  10 +-
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 boot/vbe_simple_fw.c                          |   2 +-
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 cmd/disk.c                                    |   6 +-
 cmd/dm.c                                      |   4 +-
 cmd/eeprom.c                                  |  10 +-
 cmd/i2c.c                                     | 106 ++---
 cmd/mmc.c                                     |  28 +-
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 cmd/nvedit.c                                  |   2 +
 cmd/reiser.c                                  |   2 +-
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 cmd/sf.c                                      |   4 +-
 cmd/spi.c                                     |   6 +-
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 common/board_r.c                              |  14 +-
 common/bootstage.c                            |   2 +-
 common/cli.c                                  |   4 +-
 common/console.c                              |  42 +-
 common/dlmalloc.c                             |  18 +-
 common/event.c                                |   8 +-
 common/hash.c                                 |  34 +-
 common/hwconfig.c                             |   2 +-
 common/init/Makefile                          |   2 +-
 common/init/board_init.c                      |  22 +-
 common/iomux.c                                |   2 +-
 common/log.c                                  |   2 +-
 common/malloc_simple.c                        |   4 +-
 common/spl/Makefile                           |  48 +--
 common/spl/spl.c                              |  92 ++---
 common/spl/spl_atf.c                          |   4 +-
 common/spl/spl_ext.c                          |   2 +-
 common/spl/spl_fat.c                          |   2 +-
 common/spl/spl_fit.c                          |  16 +-
 common/spl/spl_mmc.c                          |  10 +-
 common/spl/spl_nand.c                         |   2 +-
 common/spl/spl_net.c                          |   2 +-
 common/spl/spl_nor.c                          |   2 +-
 common/spl/spl_ram.c                          |  10 +-
 common/spl/spl_sata.c                         |   2 +-
 common/spl/spl_spi.c                          |   6 +-
 common/spl/spl_ubi.c                          |   2 +-
 common/spl/spl_usb.c                          |   2 +-
 common/spl/spl_xip.c                          |   2 +-
 common/stdio.c                                |   4 +-
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 common/usb_hub.c                              |  18 +-
 common/usb_kbd.c                              |  12 +-
 common/usb_storage.c                          |  34 +-
 common/xyzModem.c                             |   4 +-
 disk/Makefile                                 |  18 +-
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 disk/part.c                                   |  14 +-
 disk/part_amiga.h                             |   2 +-
 disk/part_dos.c                               |   6 +-
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 doc/develop/driver-model/i2c-howto.rst        |   2 +-
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 doc/develop/driver-model/of-plat.rst          |  10 +-
 doc/develop/spl.rst                           |   6 +-
 doc/develop/tests_writing.rst                 |   6 +-
 drivers/Makefile                              |  70 ++--
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 drivers/ata/dwc_ahsata.c                      |   2 +-
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 drivers/gpio/sandbox.c                        |  12 +-
 drivers/gpio/sunxi_gpio.c                     |   4 +-
 drivers/i2c/Kconfig                           |  30 ++
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 drivers/mmc/mmc.c                             | 148 +++----
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 drivers/net/sh_eth.c                          |  10 +-
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 .../pinctrl/uniphier/pinctrl-uniphier-core.c  |   6 +-
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 .../pinctrl/uniphier/pinctrl-uniphier-pro5.c  |   2 +-
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 drivers/serial/serial_stm32.c                 |   6 +-
 drivers/serial/serial_xen.c                   |   6 +-
 drivers/serial/serial_xuartlite.c             |   4 +-
 drivers/serial/serial_zynq.c                  |   4 +-
 drivers/spi/Makefile                          |   2 +-
 drivers/spi/atmel_spi.c                       |  10 +-
 drivers/spi/cf_spi.c                          |   4 +-
 drivers/spi/davinci_spi.c                     |   4 +-
 drivers/spi/designware_spi.c                  |   6 +-
 drivers/spi/fsl_espi.c                        |   6 +-
 drivers/spi/ich.c                             |   8 +-
 drivers/spi/ich.h                             |   2 +-
 drivers/spi/mvebu_a3700_spi.c                 |   6 +-
 drivers/spi/mxc_spi.c                         |   8 +-
 drivers/spi/mxs_spi.c                         |   8 +-
 drivers/spi/nxp_fspi.c                        |  10 +-
 drivers/spi/omap3_spi.c                       |   4 +-
 drivers/spi/pl022_spi.c                       |   4 +-
 drivers/spi/renesas_rpc_spi.c                 |   4 +-
 drivers/spi/rk_spi.c                          |   8 +-
 drivers/spi/rockchip_sfc.c                    |   8 +-
 drivers/spi/sh_qspi.c                         |   4 +-
 drivers/spi/spi-uclass.c                      |  12 +-
 drivers/spi/ti_qspi.c                         |   2 +-
 drivers/sysreset/Makefile                     |   6 +-
 drivers/sysreset/sysreset_sandbox.c           |   2 +-
 drivers/timer/Makefile                        |   6 +-
 drivers/timer/andes_plmt_timer.c              |   2 +-
 drivers/timer/cadence-ttc.c                   |   2 +-
 drivers/timer/dw-apb-timer.c                  |   8 +-
 drivers/timer/omap-timer.c                    |   2 +-
 drivers/timer/ostm_timer.c                    |   2 +-
 drivers/timer/riscv_timer.c                   |   2 +-
 drivers/timer/rockchip_timer.c                |  12 +-
 drivers/timer/sandbox_timer.c                 |   2 +-
 drivers/timer/sifive_clint_timer.c            |   2 +-
 drivers/timer/timer-uclass.c                  |   6 +-
 drivers/timer/tsc_timer.c                     |   6 +-
 drivers/tpm/Makefile                          |   4 +-
 drivers/tpm/tpm-uclass.c                      |   2 +-
 drivers/tpm/tpm2_tis_spi.c                    |   2 +-
 drivers/usb/cdns3/Makefile                    |   4 +-
 drivers/usb/cdns3/core.c                      |   6 +-
 drivers/usb/common/Makefile                   |   2 +-
 drivers/usb/common/common.c                   |   2 +-
 drivers/usb/common/usb_urb.c                  |   2 +-
 drivers/usb/dwc3/Makefile                     |   2 +-
 drivers/usb/dwc3/core.c                       |   4 +-
 drivers/usb/dwc3/core.h                       |   2 +-
 drivers/usb/dwc3/dwc3-generic.c               |  12 +-
 drivers/usb/dwc3/dwc3-layerscape.c            |   6 +-
 drivers/usb/dwc3/dwc3-meson-g12a.c            |   8 +-
 drivers/usb/dwc3/dwc3-meson-gxl.c             |   8 +-
 drivers/usb/gadget/ci_udc.c                   |   4 +-
 drivers/usb/gadget/composite.c                |   2 +-
 drivers/usb/gadget/dwc2_udc_otg.c             |  16 +-
 drivers/usb/gadget/f_fastboot.c               |   2 +-
 drivers/usb/gadget/udc/Makefile               |   6 +-
 drivers/usb/gadget/udc/udc-uclass.c           |   4 +-
 drivers/usb/host/Makefile                     |   6 +-
 drivers/usb/host/dwc2.c                       |  14 +-
 drivers/usb/host/dwc3-of-simple.c             |   2 +-
 drivers/usb/host/ehci-atmel.c                 |   2 +-
 drivers/usb/host/ehci-hcd.c                   |  12 +-
 drivers/usb/host/ehci-marvell.c               |   4 +-
 drivers/usb/host/ehci-mx6.c                   |  18 +-
 drivers/usb/host/ehci-mxs.c                   |   4 +-
 drivers/usb/host/ehci-pci.c                   |   8 +-
 drivers/usb/host/ehci-vf.c                    |   2 +-
 drivers/usb/host/ohci-da8xx.c                 |   2 +-
 drivers/usb/host/ohci-hcd.c                   |  10 +-
 drivers/usb/host/ohci-lpc32xx.c               |   8 +-
 drivers/usb/host/ohci.h                       |   4 +-
 drivers/usb/host/r8a66597-hcd.c               |   4 +-
 drivers/usb/host/xhci-dwc3.c                  |   2 +-
 drivers/usb/host/xhci-mem.c                   |   6 +-
 drivers/usb/mtu3/mtu3_plat.c                  |   4 +-
 drivers/usb/musb-new/musb_uboot.c             |  16 +-
 drivers/usb/musb-new/omap2430.c               |   6 +-
 drivers/usb/musb-new/ti-musb.c                |  20 +-
 drivers/video/dw_hdmi.c                       |   2 +-
 drivers/video/meson/meson_dw_hdmi.c           |   4 +-
 drivers/video/mxsfb.c                         |   2 +-
 drivers/video/nexell_display.c                |   4 +-
 drivers/video/video-uclass.c                  |   6 +-
 drivers/w1-eeprom/w1-eeprom-uclass.c          |   2 +-
 drivers/w1/w1-uclass.c                        |   2 +-
 drivers/watchdog/Makefile                     |   2 +-
 drivers/watchdog/designware_wdt.c             |   8 +-
 drivers/watchdog/imx_watchdog.c               |   4 +-
 drivers/watchdog/omap_wdt.c                   |   4 +-
 drivers/watchdog/wdt-uclass.c                 |   2 +-
 env/Kconfig                                   |  10 +
 env/Makefile                                  |  22 +-
 env/env.c                                     |   2 +-
 env/mmc.c                                     |   4 +-
 env/sf.c                                      |   2 +-
 fs/fat/Makefile                               |   4 +-
 fs/fat/fat.c                                  |   6 +-
 fs/fs.c                                       |   8 +-
 fs/sandbox/Makefile                           |   2 +-
 fs/squashfs/Makefile                          |   2 +-
 include/_exports.h                            |   4 +-
 include/asm-generic/global_data.h             |  30 +-
 include/asm-generic/gpio.h                    |   2 +-
 include/atf_common.h                          |   2 +-
 include/binman_sym.h                          |   6 +-
 include/blk.h                                 |   8 +-
 include/bootdev.h                             |   2 +-
 include/bootstage.h                           |   4 +-
 include/cli.h                                 |   2 +-
 include/clk.h                                 |  10 +-
 include/configs/MPC8548CDS.h                  |   2 +-
 include/configs/kmcent2.h                     |   2 +-
 include/configs/mv-common.h                   |   2 +-
 include/configs/p1_p2_rdb_pc.h                |   2 +-
 include/configs/sunxi-common.h                |   2 +-
 include/configs/ti_omap4_common.h             |   2 +-
 include/configs/x530.h                        |   2 +-
 include/ctype.h                               |  61 ++-
 include/dfu.h                                 |  12 +-
 include/dm/acpi.h                             |   2 +-
 include/dm/device-internal.h                  |  14 +-
 include/dm/device.h                           |  30 +-
 include/dm/device_compat.h                    |   4 +-
 include/dm/devres.h                           |   2 +-
 include/dm/ofnode.h                           |   6 +-
 include/dm/pinctrl.h                          |   4 +-
 include/dm/platdata.h                         |   6 +-
 include/dm/read.h                             |   8 +-
 include/dm/root.h                             |   2 +-
 include/dm/uclass-internal.h                  |   4 +-
 include/dm/util.h                             |   4 +-
 include/dma.h                                 |   4 +-
 include/dt-structs.h                          |   2 +-
 include/dwc3-uboot.h                          |   2 +-
 include/efi_loader.h                          |   6 +-
 include/env_internal.h                        |   2 +-
 include/errno.h                               |   2 +-
 include/event.h                               |  10 +-
 include/exports.h                             |   4 +-
 include/generic-phy.h                         |   2 +-
 include/handoff.h                             |   2 +-
 include/hash.h                                |   2 +-
 include/hwspinlock.h                          |   2 +-
 include/i2c.h                                 |   6 +-
 include/i2c_eeprom.h                          |   2 +-
 include/image.h                               |   6 +-
 include/init.h                                |   2 +-
 include/iommu.h                               |   4 +-
 include/irq.h                                 |   2 +-
 include/linux/compiler_types.h                |   2 +-
 include/linux/kconfig.h                       | 149 +++----
 include/linux/mtd/mtd.h                       |   4 +-
 include/linux/mtd/spi-nor.h                   |   2 +-
 include/linux/usb/gadget.h                    |   2 +-
 include/linux/usb/phy.h                       |   2 +-
 include/log.h                                 |  12 +-
 include/malloc.h                              |   2 +-
 include/mmc.h                                 |  36 +-
 include/mpc85xx.h                             |   2 +-
 include/nand.h                                |   2 +-
 include/net.h                                 |   2 +-
 include/ns16550.h                             |   4 +-
 include/nvmem.h                               |   2 +-
 include/palmas.h                              |   2 +-
 include/part.h                                |  10 +-
 include/phys2bus.h                            |   2 +-
 include/power-domain.h                        |  16 +-
 include/power/max77686_pmic.h                 |   2 +-
 include/power/pmic.h                          |  14 +-
 include/power/regulator.h                     |   2 +-
 include/reboot-mode/reboot-mode-gpio.h        |   4 +-
 include/remoteproc.h                          |   2 +-
 include/reset.h                               |   2 +-
 include/rtc.h                                 |   2 +-
 include/sdhci.h                               |   2 +-
 include/semihosting.h                         |   4 +-
 include/serial.h                              |   2 +-
 include/spi.h                                 |   4 +-
 include/spi_flash.h                           |   2 +-
 include/spl.h                                 |   2 +-
 include/syscon.h                              |   2 +-
 include/sysinfo.h                             |   2 +-
 include/tlv_eeprom.h                          |   6 +-
 include/twl4030.h                             |   2 +-
 include/twl6030.h                             |   2 +-
 include/usb.h                                 |  12 +-
 include/usb/xhci.h                            |   8 +-
 include/xilinx.h                              |   2 +-
 include/zynqmppl.h                            |   2 +-
 lib/Kconfig                                   |  20 +
 lib/Makefile                                  |  54 +--
 lib/acpi/Makefile                             |   8 +-
 lib/aes/Makefile                              |   2 +-
 lib/asm-offsets.c                             |   2 +-
 lib/crypto/Makefile                           |  14 +-
 lib/display_options.c                         |   2 +-
 lib/ecdsa/Makefile                            |   2 +-
 lib/efi/efi_app.c                             |   2 +-
 lib/efi_loader/efi_conformance.c              |   2 +-
 lib/efi_loader/efi_console.c                  |   4 +-
 lib/efi_loader/efi_device_path.c              |   2 +-
 lib/efi_loader/efi_disk.c                     |   2 +-
 lib/efi_loader/efi_root_node.c                |   4 +-
 lib/efi_selftest/efi_selftest_ecpt.c          |   2 +-
 lib/fdtdec.c                                  |  28 +-
 lib/hang.c                                    |   4 +-
 lib/hashtable.c                               |   2 +-
 lib/hexdump.c                                 |   2 +-
 lib/image-sparse.c                            |   2 +-
 lib/libfdt/Makefile                           |   2 +-
 lib/lmb.c                                     |   4 +-
 lib/panic.c                                   |   2 +-
 lib/rsa/Makefile                              |   4 +-
 lib/rsa/rsa-sign.c                            |   2 +-
 lib/rsa/rsa-verify.c                          |  10 +-
 lib/semihosting.c                             |   2 +-
 lib/string.c                                  |   2 +-
 lib/time.c                                    |   2 +-
 lib/tiny-printf.c                             |   6 +-
 lib/vsprintf.c                                |   8 +-
 net/Makefile                                  |   8 +-
 net/bootp.c                                   |   2 +-
 net/eth-uclass.c                              |   4 +-
 net/eth_common.c                              |   2 +-
 net/tftp.c                                    |   3 +-
 scripts/Kbuild.include                        |  16 -
 scripts/Makefile.build                        |  12 +-
 scripts/Makefile.dts                          |   2 +-
 scripts/Makefile.spl                          |  66 ++--
 scripts/basic/fixdep.c                        | 162 ++++++--
 scripts/conf_noproper                         | 175 +++++++++
 scripts/conf_nospl                            |  79 ++++
 scripts/kconfig/conf.c                        |   6 +
 scripts/kconfig/confdata.c                    | 367 ++++++++++++++++--
 scripts/kconfig/expr.h                        |  18 +
 scripts/kconfig/lkc.h                         |   9 +
 test/Kconfig                                  |   5 +
 test/Makefile                                 |  20 +-
 test/cmd_ut.c                                 |   2 +-
 test/dm/Makefile                              |   2 +-
 test/dm/clk_ccf.c                             |   4 +-
 test/dm/core.c                                |   2 +-
 test/dm/fastboot.c                            |   2 +-
 test/dm/of_platdata.c                         |   4 +-
 test/dm/ofnode.c                              |   2 +-
 test/dm/part.c                                |   2 +-
 test/dm/spi.c                                 |   2 +-
 test/fuzz/Makefile                            |   2 +-
 test/lib/Kconfig                              |  20 +-
 test/lib/kconfig.c                            |  21 +-
 test/lib/kconfig_spl.c                        |  16 +-
 test/print_ut.c                               |   4 +-
 test/py/tests/test_kconfig.py                 |   6 +-
 test/test-main.c                              |  18 +-
 test/unicode_ut.c                             |   4 +-
 tools/binman/test/generated/autoconf.h        |   4 +-
 tools/moveconfig.py                           |   2 +-
 984 files changed, 4070 insertions(+), 3242 deletions(-)
 mode change 120000 => 100644 include/ctype.h
 create mode 100644 scripts/conf_noproper
 create mode 100644 scripts/conf_nospl

-- 
2.39.1.456.gfc5497dd1b-goog



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