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authorLinus Torvalds <torvalds@linux-foundation.org>2019-01-06 16:33:10 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-01-06 16:33:10 -0800
commit85e1ffbd42f664965dc05f6e9851c06379f27fb2 (patch)
tree125d9a6ce2f74873a0d72c6c13903f11ab7fd51b /Documentation
parentac5eed2b41776b05cf03aac761d3bb5e64eea24c (diff)
parentd86271af64602e7c86c003b27f27c7216706ff96 (diff)
Merge tag 'kbuild-v4.21-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull more Kbuild updates from Masahiro Yamada: - improve boolinit.cocci and use_after_iter.cocci semantic patches - fix alignment for kallsyms - move 'asm goto' compiler test to Kconfig and clean up jump_label CONFIG option - generate asm-generic wrappers automatically if arch does not implement mandatory UAPI headers - remove redundant generic-y defines - misc cleanups * tag 'kbuild-v4.21-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kconfig: rename generated .*conf-cfg to *conf-cfg kbuild: remove unnecessary stubs for archheader and archscripts kbuild: use assignment instead of define ... endef for filechk_* rules arch: remove redundant UAPI generic-y defines kbuild: generate asm-generic wrappers if mandatory headers are missing arch: remove stale comments "UAPI Header export list" riscv: remove redundant kernel-space generic-y kbuild: change filechk to surround the given command with { } kbuild: remove redundant target cleaning on failure kbuild: clean up rule_dtc_dt_yaml kbuild: remove UIMAGE_IN and UIMAGE_OUT jump_label: move 'asm goto' support test to Kconfig kallsyms: lower alignment on ARM scripts: coccinelle: boolinit: drop warnings on named constants scripts: coccinelle: check for redeclaration kconfig: remove unused "file" field of yylval union nds32: remove redundant kernel-space generic-y nios2: remove unneeded HAS_DMA define
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/kbuild/makefiles.txt9
1 files changed, 6 insertions, 3 deletions
diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index 8da26c6dd886..bf28c47bfd72 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -1296,9 +1296,12 @@ See subsequent chapter for the syntax of the Kbuild file.
--- 7.4 mandatory-y
- mandatory-y is essentially used by include/uapi/asm-generic/Kbuild.asm
- to define the minimum set of headers that must be exported in
- include/asm.
+ mandatory-y is essentially used by include/(uapi/)asm-generic/Kbuild.asm
+ to define the minimum set of ASM headers that all architectures must have.
+
+ This works like optional generic-y. If a mandatory header is missing
+ in arch/$(ARCH)/include/(uapi/)/asm, Kbuild will automatically generate
+ a wrapper of the asm-generic one.
The convention is to list one subdir per line and
preferably in alphabetic order.