Hi Lei, Le 28/01/2011 02:28, Lei Wen a écrit :
>>> diff --git a/arch/arm/include/asm/arch-kirkwood/config.h >>> b/arch/arm/include/asm/arch-kirkwood/config.h >>> new file mode 100644 >>> index 0000000..7c6d63b >>> --- /dev/null >>> +++ b/arch/arm/include/asm/arch-kirkwood/config.h >>> @@ -0,0 +1,145 @@ ... >>> +#ifndef CONFIG_SYS_KWD_CONFIG >>> +#define CONFIG_SYS_KWD_CONFIG >>> $(SRCTREE)/$(CONFIG_BOARDDIR)/kwbimage.cfg >> >> What are the '$()' operators doing here ? > > This definition is served as generating kirkwood special image, which > I just move it from mv-common.h > $(obj)u-boot.kwb: $(obj)u-boot.bin > $(obj)tools/mkimage -n $(CONFIG_SYS_KWD_CONFIG) -T kwbimage \ > -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -d $< > $@ What I would like to understand is, the '$(X)' macro expansion operator indeed has meaning and makes sense for some tools such as Make, but not for a C preprocessor or compiler. Is this config.h file included by a makefile somehow? > Best regards, > Lei Amicalement, -- Albert. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
