kbuild: document KBUILD_LDS, KBUILD_VMLINUX_{INIT,MAIN} and LDFLAGS_vmlinux

Newly exported variables - used by link-vmlinux.sh

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
This commit is contained in:
Sam Ravnborg 2012-05-05 10:18:42 +02:00 committed by Michal Marek
parent 1f2bfbd00e
commit d27579a273

View File

@ -50,6 +50,10 @@ LDFLAGS_MODULE
--------------------------------------------------
Additional options used for $(LD) when linking modules.
LDFLAGS_vmlinux
--------------------------------------------------
Additional options passed to final link of vmlinux.
KBUILD_VERBOSE
--------------------------------------------------
Set the kbuild verbosity. Can be assigned same values as "V=...".
@ -214,3 +218,18 @@ KBUILD_BUILD_USER, KBUILD_BUILD_HOST
These two variables allow to override the user@host string displayed during
boot and in /proc/version. The default value is the output of the commands
whoami and host, respectively.
KBUILD_LDS
--------------------------------------------------
The linker script with full path. Assigned by the top-level Makefile.
KBUILD_VMLINUX_INIT
--------------------------------------------------
All object files for the init (first) part of vmlinux.
Files specified with KBUILD_VMLINUX_INIT are linked first.
KBUILD_VMLINUX_MAIN
--------------------------------------------------
All object files for the main part of vmlinux.
KBUILD_VMLINUX_INIT and KBUILD_VMLINUX_MAIN together specify
all the object files used to link vmlinux.