kernel/linux.git/arch/mips/boot/Makefile, branch v6.12.80

kbuild: use more subdir- for visiting subdirectories while cleaning

2021-10-24T04:49:46+00:00

Documentation/kbuild/makefiles.rst suggests to use "archclean" for cleaning arch/$(SRCARCH)/boot/, but it is not a hard requirement. Since commit d92cc4d51643 ("kbuild: require all architectures to have arch/$(SRCARCH)/Kbuild"), we can use the "subdir- += boot" trick for all architectures. This can take advantage of the parallel option (-j) for "make clean". I also cleaned up the comments in arch/$(SRCARCH)/Makefile. The "archdep" target no longer exists. Signed-off-by: Masahiro Yamada Reviewed-by: Kees Cook Acked-by: Geert Uytterhoeven Acked-by: Michael Ellerman (powerpc)

kbuild: rename hostprogs-y/always to hostprogs/always-y

2020-02-03T16:53:07+00:00

In old days, the "host-progs" syntax was used for specifying host programs. It was renamed to the current "hostprogs-y" in 2004. It is typically useful in scripts/Makefile because it allows Kbuild to selectively compile host programs based on the kernel configuration. This commit renames like follows: always -> always-y hostprogs-y -> hostprogs So, scripts/Makefile will look like this: always-$(CONFIG_BUILD_BIN2C) += ... always-$(CONFIG_KALLSYMS) += ... ... hostprogs := $(always-y) $(always-m) I think this makes more sense because a host program is always a host program, irrespective of the kernel configuration. We want to specify which ones to compile by CONFIG options, so always-y will be handier. The "always", "hostprogs-y", "hostprogs-m" will be kept for backward compatibility for a while. Signed-off-by: Masahiro Yamada

MIPS: boot: fix typo in 'vmlinux.lzma.its' target

2020-01-20T23:39:06+00:00

Commit 92b34a976348 ("MIPS: boot: add missing targets for vmlinux.*.its") fixed constant rebuild of *.its files on every make invocation, but due to typo ("lzmo") it made no sense for vmlinux.lzma.its. Fixes: 92b34a976348 ("MIPS: boot: add missing targets for vmlinux.*.its") Cc: # v4.19+ Signed-off-by: Alexander Lobakin [paulburton@kernel.org: s/invokation/invocation/] Signed-off-by: Paul Burton Cc: Ralf Baechle Cc: James Hogan Cc: Masahiro Yamada Cc: Rob Herring Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org

kbuild: add $(BASH) to run scripts with bash-extension

2019-09-04T13:54:13+00:00

CONFIG_SHELL falls back to sh when bash is not installed on the system, but nobody is testing such a case since bash is usually installed. So, shell scripts invoked by CONFIG_SHELL are only tested with bash. It makes it difficult to test whether the hashbang #!/bin/sh is real. For example, #!/bin/sh in arch/powerpc/kernel/prom_init_check.sh is false. (I fixed it up) Besides, some shell scripts invoked by CONFIG_SHELL use bash-extension and #!/bin/bash is specified as the hashbang, while CONFIG_SHELL may not always be set to bash. Probably, the right thing to do is to introduce BASH, which is bash by default, and always set CONFIG_SHELL to sh. Replace $(CONFIG_SHELL) with $(BASH) for bash scripts. If somebody tries to add bash-extension to a #!/bin/sh script, it will be caught in testing because /bin/sh is a symlink to dash on some major distributions. Signed-off-by: Masahiro Yamada

kbuild: add real-prereqs shorthand for $(filter-out FORCE,$^)

2019-01-28T00:11:17+00:00

In Kbuild, if_changed and friends must have FORCE as a prerequisite. Hence, $(filter-out FORCE,$^) or $(filter-out $(PHONY),$^) is a common idiom to get the names of all the prerequisites except phony targets. Add real-prereqs as a shorthand. Note: We cannot replace $(filter %.o,$^) in cmd_link_multi-m because $^ may include auto-generated dependencies from the .*.cmd file when a single object module is changed into a multi object module. Refer to commit 69ea912fda74 ("kbuild: remove unneeded link_multi_deps"). I added some comment to avoid accidental breakage. Signed-off-by: Masahiro Yamada Acked-by: Rob Herring

MIPS: boot: merge build rules of vmlinux.*.itb by using pattern rule

2018-06-24T16:27:27+00:00

Merge the build rule of vmlinux.{gz,bz2,lzma,lzo}.itb, and also move 'targets' close to the related code. [paul.burton@mips.com: - Remove leading tabs from assignments to itb_addr_cells, since after this patch moves the additions to the 'targets' variable the assignments to itb_addr_cells wound up being treated as part of the uImage rule above them, causing the .its to incorrectly be generated with empty ADDR_CELLS.] Signed-off-by: Masahiro Yamada Patchwork: https://patchwork.linux-mips.org/patch/19095/ Signed-off-by: Paul Burton Cc: Kees Cook Cc: linux-kernel@vger.kernel.org

MIPS: boot: add missing targets for vmlinux.*.its

2018-06-24T16:27:27+00:00

The build rule of vmlinux.*.its is invoked by $(call if_changed,...) but it always rebuilds the target needlessly due to missing targets. Signed-off-by: Masahiro Yamada Patchwork: https://patchwork.linux-mips.org/patch/19092/ Signed-off-by: Paul Burton Cc: Kees Cook Cc: linux-kernel@vger.kernel.org

MIPS: boot: fix build rule of vmlinux.its.S

2018-06-24T16:27:27+00:00

As Documentation/kbuild/makefile.txt says, it is a typical mistake to forget the FORCE prerequisite for the rule invoked by if_changed. Add the FORCE to the prerequisite, but it must be filtered-out from the files passed to the 'cat' command. Because this rule generates .vmlinux.its.S.cmd, vmlinux.its.S must be specified as targets so that the .cmd file is included. Signed-off-by: Masahiro Yamada Patchwork: https://patchwork.linux-mips.org/patch/19097/ Signed-off-by: Paul Burton Cc: Kees Cook Cc: linux-kernel@vger.kernel.org

MIPS: boot: do not include $(cpp_flags) for preprocessing ITS

2018-06-24T16:27:27+00:00

$(CPP) is used here to perform macro replacement in ITS. Do not pass $(cpp_flags) because it pulls in more options for dependency file generation etc. but none of which is necessary here. ITS files do not include any header file, so $(call if_change,...) is enough. Signed-off-by: Masahiro Yamada Patchwork: https://patchwork.linux-mips.org/patch/19093/ Signed-off-by: Paul Burton Cc: Kees Cook Cc: linux-kernel@vger.kernel.org

Revert "MIPS: boot: Define ASSEMBLY for its.S build"

2018-06-24T16:27:27+00:00

This reverts commit 0f9da844d87796ac31b04e81ee95e155e9043132. It is true that commit 0f9da844d877 ("MIPS: boot: Define __ASSEMBLY__ for its.S build") fixed the build error, but it should not have defined __ASSEMBLY__ just for textual substitution in arbitrary data. The file is image tree source in this case, but the purpose of using CPP is to replace some macros. I merged a better solution, commit a95b37e20db9 ("kbuild: get out of "). The original fix-up is no longer needed. Signed-off-by: Masahiro Yamada Patchwork: https://patchwork.linux-mips.org/patch/19096/ Signed-off-by: Paul Burton Cc: Kees Cook Cc: linux-kernel@vger.kernel.org

kernel/linux.git/arch/mips/boot/Makefile, branch v6.12.80

kbuild: use more subdir- for visiting subdirectories while cleaning

kbuild: rename hostprogs-y/always to hostprogs/always-y

MIPS: boot: fix typo in 'vmlinux.lzma.its' target

kbuild: add $(BASH) to run scripts with bash-extension

kbuild: add real-prereqs shorthand for $(filter-out FORCE,$^)

MIPS: boot: merge build rules of vmlinux.*.itb by using pattern rule

MIPS: boot: add missing targets for vmlinux.*.its

MIPS: boot: fix build rule of vmlinux.its.S

MIPS: boot: do not include $(cpp_flags) for preprocessing ITS

Revert "MIPS: boot: Define __ASSEMBLY__ for its.S build"

Revert "MIPS: boot: Define ASSEMBLY for its.S build"