mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-09-21 07:01:57 +00:00
9e4140329e
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> |
||
|---|---|---|
| .. | ||
| budget.c | ||
| crc16.c | ||
| crc16.h | ||
| debug.c | ||
| debug.h | ||
| io.c | ||
| key.h | ||
| log.c | ||
| lprops.c | ||
| lpt.c | ||
| lpt_commit.c | ||
| Makefile | ||
| master.c | ||
| misc.h | ||
| orphan.c | ||
| recovery.c | ||
| replay.c | ||
| sb.c | ||
| scan.c | ||
| super.c | ||
| tnc.c | ||
| tnc_misc.c | ||
| ubifs-media.h | ||
| ubifs.c | ||
| ubifs.h | ||