Masahiro Yamada 9e4140329e kbuild: change out-of-tree build ... This commit changes the working directory where the build process occurs. Before this commit, build process occurred under the source tree for both in-tree and out-of-tree build. That's why we needed to add $(obj) prefix to all generated files in makefiles like follows: $(obj)u-boot.bin: $(obj)u-boot Here, $(obj) is empty for in-tree build, whereas it points to the output directory for out-of-tree build. And our old build system changes the current working directory with "make -C <sub-dir>" syntax when descending into the sub-directories. On the other hand, Kbuild uses a different idea to handle out-of-tree build and directory descending. The build process of Kbuild always occurs under the output tree. When "O=dir/to/store/output/files" is given, the build system changes the current working directory to that directory and restarts the make. Kbuild uses "make -f $(srctree)/scripts/Makefile.build obj=<sub-dir>" syntax for descending into sub-directories. (We can write it like "make $(obj)=<sub-dir>" with a shorthand.) This means the current working directory is always the top of the output directory. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Gerhard Sittig <gsi@denx.de>		2014-02-19 11:07:50 -05:00
..
_ashldi3.S	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00
_ashrdi3.S	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00
_lshrdi3.S	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00
bat_rw.c	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00
board.c	powerpc: cast bi_memsize to ulong for %ld usage	2013-10-24 09:35:15 -07:00
bootm.c	common/cmd_bootm: extend do_bootm_vxworks to support the new VxWorks boot interface.	2013-12-16 08:59:05 -05:00
cache.c	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00
extable.c	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00
ide.c	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00
ide.h	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00
interrupts.c	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00
kgdb.c	powerpc: fix register usage in some inline assembly code	2010-12-17 21:18:08 +01:00
Makefile	kbuild: change out-of-tree build	2014-02-19 11:07:50 -05:00
memcpy_mpc5200.c	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00
ppccache.S	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00
ppcstring.S	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00
reloc.S	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00
spl.c	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00
ticks.S	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00
time.c	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00