Changes in Makefile

3b8241f6 - nios2: migrate to the generic rule for built-in DTB

Sun, 22 Dec 2024 00:30:53 +0000

nios2: migrate to the generic rule for built-in DTBCommit 654102df2ac2 ("kbuild: add generic support for built-in bootDTBs") introduced generic support for built-in DTBs.Select GENERIC_BUILTIN_DTB when built-in DTB support is enabled.To keep consistency across architectures, this commit also renamesCONFIG_NIOS2_DTB_SOURCE_BOOL to CONFIG_BUILTIN_DTB, andCONFIG_NIOS2_DTB_SOURCE to CONFIG_BUILTIN_DTB_NAME.Signed-off-by: Masahiro Yamada List of files: /linux-6.15/scripts/dtc/include-prefixes/nios2/Makefile

b1992c37 - kbuild: use $(src) instead of $(srctree)/$(src) for source directory

Sat, 27 Apr 2024 14:55:02 +0000

kbuild: use $(src) instead of $(srctree)/$(src) for source directoryKbuild conventionally uses $(obj)/ for generated files, and $(src)/ forchecked-in source files. It is merely a convention without any functionaldifference. In fact, $(obj) and $(src) are exactly the same, as definedin scripts/Makefile.build: src := $(obj)When the kernel is built in a separate output directory, $(src) doesnot accurately reflect the source directory location. While Kbuildresolves this discrepancy by specifying VPATH=$(srctree) to search forsource files, it does not cover all cases. For example, when adding aheader search path for local headers, -I$(srctree)/$(src) is typicallypassed to the compiler.This introduces inconsistency between upstream and downstream Makefilesbecause $(src) is used instead of $(srctree)/$(src) for the latter.To address this inconsistency, this commit changes the semantics of$(src) so that it always points to the directory in the source tree.Going forward, the variables used in Makefiles will have the followingmeanings: $(obj) - directory in the object tree $(src) - directory in the source tree (changed by this commit) $(objtree) - the top of the kernel object tree $(srctree) - the top of the kernel source treeConsequently, $(srctree)/$(src) in upstream Makefiles need to be replacedwith $(src).Signed-off-by: Masahiro Yamada Reviewed-by: Nicolas Schier List of files: /linux-6.15/scripts/dtc/include-prefixes/nios2/Makefile

129ab0d2 - kbuild: do not quote string values in include/config/auto.conf

Tue, 14 Dec 2021 02:53:53 +0000

kbuild: do not quote string values in include/config/auto.confThe previous commit fixed up all shell scripts to not includeinclude/config/auto.conf.Now that include/config/auto.conf is only included by Makefiles,we can change it into a more Make-friendly form.Previously, Kconfig output string values enclosed with double-quotes(both in the .config and include/config/auto.conf): CONFIG_X="foo bar"Unlike shell, Make handles double-quotes (and single-quotes as well)verbatim. We must rip them off when used.There are some patterns: [1] $(patsubst "%",%,$(CONFIG_X)) [2] $(CONFIG_X:"%"=%) [3] $(subst ",,$(CONFIG_X)) [4] $(shell echo $(CONFIG_X))These are not only ugly, but also fragile.[1] and [2] do not work if the value contains spaces, like CONFIG_X=" foo bar "[3] does not work correctly if the value contains double-quotes like CONFIG_X="foo\"bar"[4] seems to work better, but has a cost of forking a process.Anyway, quoted strings were always PITA for our Makefiles.This commit changes Kconfig to stop quoting in include/config/auto.conf.These are the string type symbols referenced in Makefiles or scripts: ACPI_CUSTOM_DSDT_FILE ARC_BUILTIN_DTB_NAME ARC_TUNE_MCPU BUILTIN_DTB_SOURCE CC_IMPLICIT_FALLTHROUGH CC_VERSION_TEXT CFG80211_EXTRA_REGDB_KEYDIR EXTRA_FIRMWARE EXTRA_FIRMWARE_DIR EXTRA_TARGETS H8300_BUILTIN_DTB INITRAMFS_SOURCE LOCALVERSION MODULE_SIG_HASH MODULE_SIG_KEY NDS32_BUILTIN_DTB NIOS2_DTB_SOURCE OPENRISC_BUILTIN_DTB SOC_CANAAN_K210_DTB_SOURCE SYSTEM_BLACKLIST_HASH_LIST SYSTEM_REVOCATION_KEYS SYSTEM_TRUSTED_KEYS TARGET_CPU UNUSED_KSYMS_WHITELIST XILINX_MICROBLAZE0_FAMILY XILINX_MICROBLAZE0_HW_VER XTENSA_VARIANT_NAMEI checked them one by one, and fixed up the code where necessary.Signed-off-by: Masahiro Yamada List of files: /linux-6.15/scripts/dtc/include-prefixes/nios2/Makefile

a91c6145 - nios2: fix building all dtbs

Wed, 01 Aug 2018 17:49:58 +0000

nios2: fix building all dtbsnios2 has a 'dtbs' target, but nothing is added to 'dtb-*' targets andno dtbs were getting built. This enables building all the dts files inarch/nios2/boot/dts/ when COMPILE_TEST and OF_ALL_DTBS are enabled.Cc: Ley Foon Tan Cc: nios2-dev@lists.rocketboards.orgSigned-off-by: Rob Herring List of files: /linux-6.15/scripts/dtc/include-prefixes/nios2/Makefile

1b4f9e2b - nios2: use common rules to build built-in dtb

Wed, 01 Aug 2018 20:14:12 +0000

nios2: use common rules to build built-in dtbUsing the common build support for built-in dtb files just requiresadding a .dtb.o target to obj-y.This has the side effect that CONFIG_NIOS2_DTB_SOURCE should now be justthe dts filename in arch/nios2/boot/dts/ directory. Before any path wassupported, but if you want to build in your dtb to the kernel, it shouldbe in the kernel tree.Cc: Ley Foon Tan Cc: nios2-dev@lists.rocketboards.orgSigned-off-by: Rob Herring List of files: /linux-6.15/scripts/dtc/include-prefixes/nios2/Makefile

11886486 - nios2: build .dtb files in dts directory

Thu, 08 Oct 2015 00:21:18 +0000

nios2: build .dtb files in dts directoryAlign nios2 with other architectures which build the dtb files in thesame directory as the dts files. This is also in line with most otherbuild targets which are located in the same directory as the source.This move will help enable the 'dtbs' target which builds all the dtbsregardless of kernel config.This transition could break some scripts if they expect dtb files inthe old location.Cc: Ley Foon Tan Cc: nios2-dev@lists.rocketboards.orgSigned-off-by: Rob Herring List of files: /linux-6.15/scripts/dtc/include-prefixes/nios2/Makefile