Messages in this thread | | | Date | Fri, 30 Aug 2013 13:44:03 +0200 | Subject | Re: [PATCH v2] h8300/kernel/setup.c: add "linux/initrd.h" to pass compiling | From | richard -rw- weinberger <> |
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On Fri, Aug 30, 2013 at 1:18 PM, Guenter Roeck <linux@roeck-us.net> wrote: > On 08/29/2013 11:34 PM, Chen Gang wrote: >> >> On 08/30/2013 12:53 PM, Guenter Roeck wrote: >>> >>> On 08/29/2013 08:59 PM, Chen Gang wrote: >>>> >>>> The related error (allmodconfig for h8300): >>>> >>>> arch/h8300/kernel/setup.c: In function 'setup_arch': >>>> arch/h8300/kernel/setup.c:103:3: error: 'initrd_start' undeclared >>>> (first use in this function) >>>> initrd_start = memory_start; >>>> ^ >>>> arch/h8300/kernel/setup.c:103:3: note: each undeclared identifier >>>> is reported only once for each function it appears in >>>> arch/h8300/kernel/setup.c:104:3: error: 'initrd_end' undeclared >>>> (first use in this function) >>>> initrd_end = memory_start += be32_to_cpu(((unsigned long *) >>>> (memory_start))[2]); >>>> ^ >>>> >>>> Signed-off-by: Chen Gang <gang.chen@asianux.com> >>>> --- >>> >>> >>> Maybe an odd question, but is there a way to actually compile the h8300 >>> target >> >> >> Firstly, at least for me, I don't think it is an odd question. :-) >> >> For the tool-chain: >> >> I compiled the cross-compiler from the gcc and binutils source code. >> GCC has too many bugs to compile kernel with -Os (normal make will >> fail). >> If without -Os (no optimization), it can work correctly which is enough >> for my goal: "let h8300 pass allmodconfig". ;-) >> >>> From building with allmodconfig for h8300: >> >> >> I can find more chances to provide contributes (both for h8300 and for >> others). >> I can learn more in kernel wide. >> I can familiar the gcc and binutils step by step (especially to >> familiar with their issues). >> >> Next: >> >> I will communicate/work with the gcc guys for the gcc issues which >> found by building kernel. >> >> :-) >> >> >> >>> in the first place ? The cross compiler on kernel.org doesn't work, nor >>> does >>> the one available through Ubuntu. >>> >>> Guenter >>> >> >> For binutils, no release under Ubuntu, and the Fedora17's is incorrect >> (can not use), but the binutils-2.22 from gnu is OK. >> >> For gcc, no release under Ubuntu, for Fedora17's, gcc-4.9, gcc-4.8, >> gcc-4.7.4, and gcc-4.4.7 all have bugs for compiling kernel(their bugs >> are different too). >> >> It is really not easy to fix these bugs (gcc guys have too many issues >> to fix), even if really find the root cause, it is still difficult to >> fix (fix one bug is very easy to cause another more issues). >> > > I have to wonder ... is this all worth it ? It almost looks like no one > is using this architecture anymore. Do you have target hardware to test > any of your changes ?
Chen has to achieve his 10 patches/month quota. :-\
-- Thanks, //richard
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