Messages in this thread | | | Date | Wed, 8 Oct 2014 15:46:59 -0500 | From | Chuck Ebbert <> | Subject | Re: vdso_standalone_test_x86.c build failure on Linus' tree |
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On Wed, 8 Oct 2014 12:16:11 -0700 Andy Lutomirski <luto@amacapital.net> wrote:
> On Wed, Oct 8, 2014 at 11:52 AM, Josh Boyer <jwboyer@fedoraproject.org> wrote: > > I'm seeing the following build failure on a 32-bit x86 build in Fedora > > based on Linux v3.17-2860-gef0625b70dac: > > > > Documentation/vDSO/vdso_standalone_test_x86.o: In function `to_base10': > > vdso_standalone_test_x86.c:(.text+0xcc): undefined reference to `__umoddi3' > > vdso_standalone_test_x86.c:(.text+0xea): undefined reference to `__udivdi3' > > collect2: error: ld returned 1 exit status > > scripts/Makefile.host:100: recipe for target > > 'Documentation/vDSO/vdso_standalone_test_x86' failed > > make[2]: *** [Documentation/vDSO/vdso_standalone_test_x86] Error 1 > > scripts/Makefile.build:404: recipe for target 'Documentation/vDSO' failed > > make[1]: *** [Documentation/vDSO] Error 2 > > make[1]: *** Waiting for unfinished jobs.... > > Makefile:922: recipe for target 'vmlinux' failed > > make: *** [vmlinux] Error 2 > > > It should build and work on 32-bit. > > Except that the makefile is totally bogus. vdso_standalone_test isn't > a hostprog at all. It's a target prog. But kbuild doesn't understand > that, so I have no idea what, if anything, that makefile is supposed > to do.
Heh, I was wondering why I got a 64-bit program with ARCH=i386
> I would argue that the whole documentation build system should be > fixed to cross-compile or should just be disabled for cross-builds if > glibc isn't available. >
Fedora doesn't cross-compile i686 builds because of problems like this. It sets up an i386 chroot and runs all native tools inside of it.
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