From 9e4140329ee9a787d0f96ac2829d618d47f7973f Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Tue, 4 Feb 2014 17:24:24 +0900 Subject: 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 " 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=" syntax for descending into sub-directories. (We can write it like "make $(obj)=" with a shorthand.) This means the current working directory is always the top of the output directory. Signed-off-by: Masahiro Yamada Tested-by: Gerhard Sittig --- arch/arm/cpu/arm926ejs/config.mk | 2 +- arch/arm/cpu/arm926ejs/davinci/config.mk | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/arm/cpu/arm926ejs') diff --git a/arch/arm/cpu/arm926ejs/config.mk b/arch/arm/cpu/arm926ejs/config.mk index 4d9895f5d8..f27ca15086 100644 --- a/arch/arm/cpu/arm926ejs/config.mk +++ b/arch/arm/cpu/arm926ejs/config.mk @@ -13,6 +13,6 @@ ifdef CONFIG_SPL_BUILD ALL-y += $(OBJTREE)/SPL endif else -ALL-y += $(obj)u-boot.imx +ALL-y += u-boot.imx endif endif diff --git a/arch/arm/cpu/arm926ejs/davinci/config.mk b/arch/arm/cpu/arm926ejs/davinci/config.mk index d5c978b446..69e9d5ab21 100644 --- a/arch/arm/cpu/arm926ejs/davinci/config.mk +++ b/arch/arm/cpu/arm926ejs/davinci/config.mk @@ -4,5 +4,5 @@ # SPDX-License-Identifier: GPL-2.0+ # ifndef CONFIG_SPL_BUILD -ALL-$(CONFIG_SPL_FRAMEWORK) += $(obj)u-boot.ais +ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.ais endif -- cgit v1.2.1 From ca53735a4cd6cc8159e1a9515446e81230dc5b27 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Thu, 13 Feb 2014 18:30:27 +0900 Subject: Move CONFIG_DISPLAY_CPUINFO to Makefile If the whole code is surrounded by #ifdef(CONFIG_ ) .. #endif, it should be moved to Makefile. Signed-off-by: Masahiro Yamada --- arch/arm/cpu/arm926ejs/omap/Makefile | 3 ++- arch/arm/cpu/arm926ejs/omap/cpuinfo.c | 4 ++-- 2 files changed, 4 insertions(+), 3 deletions(-) (limited to 'arch/arm/cpu/arm926ejs') diff --git a/arch/arm/cpu/arm926ejs/omap/Makefile b/arch/arm/cpu/arm926ejs/omap/Makefile index bd0a2fbe92..add923276c 100644 --- a/arch/arm/cpu/arm926ejs/omap/Makefile +++ b/arch/arm/cpu/arm926ejs/omap/Makefile @@ -5,5 +5,6 @@ # SPDX-License-Identifier: GPL-2.0+ # -obj-y = timer.o cpuinfo.o +obj-y = timer.o +obj-$(CONFIG_DISPLAY_CPUINFO) += cpuinfo.o obj-y += reset.o diff --git a/arch/arm/cpu/arm926ejs/omap/cpuinfo.c b/arch/arm/cpu/arm926ejs/omap/cpuinfo.c index 02332eee0e..587d99a2bb 100644 --- a/arch/arm/cpu/arm926ejs/omap/cpuinfo.c +++ b/arch/arm/cpu/arm926ejs/omap/cpuinfo.c @@ -13,7 +13,7 @@ #include #include -#if defined(CONFIG_DISPLAY_CPUINFO) && defined(CONFIG_OMAP) +#if defined(CONFIG_OMAP) #define omap_readw(x) *(volatile unsigned short *)(x) #define omap_readl(x) *(volatile unsigned long *)(x) @@ -239,4 +239,4 @@ int print_cpuinfo (void) return 0; } -#endif /* #if defined(CONFIG_DISPLAY_CPUINFO) && defined(CONFIG_OMAP) */ +#endif /* #if defined(CONFIG_OMAP) */ -- cgit v1.2.1