Hi, On Fri, Aug 23, 2013 at 11:16 AM, Gerhard Sittig <g...@denx.de> wrote: > On Fri, Aug 23, 2013 at 19:35 +0800, tiger...@viatech.com.cn wrote: >> >> Hi, experts: >> >> If i defined CONFIG_OF_EMBED, then: >> >> Where could i find _binary_dt_dtb_start's definition? >> >> In arch/arm/lib/board.c: >> >> gd->fdt_blob = _binary_dt_dtb_start; >> >> >> >> but i could not find _binary_dt_dtb_start's definition. > > Looks like something the linker will resolve while the symbol is > introduced by something that isn't generated from compiling > source code. > > See the objcopy(1) manpage and search for '_start' there. This > appears to be a feature of incorporating BLOBs and data files > into your executables without taking the detour of generating > header files, and perfectly fits into what the "embed" name of > the config option suggests. > > So depending on why you are asking (you don't tell what is the > actual problem you are trying to solve, just which detail you > currently are digging into), you may want to search the makefiles > and other build instructions on where a file named "dt.dtb" or > similar gets referenced. > > See the output of `git grep -C 5 'dt.dtb'` -- Makefile and > dtc/Makefile probably are what you are looking for.
Yes, exactly. I should add that CONFIG_OF_EMBED is really only there for use with ICE units or some other situation where you want the DT built in. It is not for production code. Regards, Simon _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
