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kbuild: doc: fix 'List directories to visit when descending' section 

Fix stale information:

 - Fix the section number in the reference from 6.4 to 7.4.

 - Remove init-y and net-y. They were removed by commit 23febe375d
   ("kbuild: merge init-y into core-y") and commit 95fb6317b3
   ("kbuild: merge net-y and virt-y into drivers-y"), respectively.

 - Update the example because arch/sparc64/Makefile does not exit.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
zero-sugar-mainline-defconfig
Masahiro Yamada 2020-11-28 20:51:04 +09:00
parent 8c4d9b145b
commit 23b53061ad
1 changed files with 10 additions and 9 deletions
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19
Documentation/kbuild/makefiles.rst
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@ -278,7 +278,7 @@ more details, with real examples.
actually recognize that there is a lib.a being built, the directory
shall be listed in libs-y.
See also "6.4 List directories to visit when descending".
See also "7.4 List directories to visit when descending".
Use of lib-y is normally restricted to `lib/` and `arch/*/lib`.
@ -1154,7 +1154,7 @@ When kbuild executes, the following steps are followed (roughly):
machinery is all architecture-independent.
head-y, init-y, core-y, libs-y, drivers-y, net-y
head-y, core-y, libs-y, drivers-y
$(head-y) lists objects to be linked first in vmlinux.
$(libs-y) lists directories where a lib.a archive can be located.
@ -1162,11 +1162,9 @@ When kbuild executes, the following steps are followed (roughly):
The rest list directories where a built-in.a object file can be
located.
$(init-y) objects will be located after $(head-y).
Then the rest follows in this order:
$(core-y), $(libs-y), $(drivers-y) and $(net-y).
$(core-y), $(libs-y), $(drivers-y)
The top level Makefile defines values for all generic directories,
and arch/$(SRCARCH)/Makefile only adds architecture-specific
@ -1174,11 +1172,14 @@ When kbuild executes, the following steps are followed (roughly):
Example::
#arch/sparc64/Makefile
core-y += arch/sparc64/kernel/
libs-y += arch/sparc64/prom/ arch/sparc64/lib/
drivers-$(CONFIG_OPROFILE) += arch/sparc64/oprofile/
# arch/sparc/Makefile
core-y += arch/sparc/
libs-y += arch/sparc/prom/
libs-y += arch/sparc/lib/
drivers-$(CONFIG_PM) += arch/sparc/power/
drivers-$(CONFIG_OPROFILE) += arch/sparc/oprofile/
7.5 Architecture-specific boot images
-------------------------------------