Re: Multiple longjmp definitions with STATIC_LINKING=y

From	Florian Fainelli <f.fainelli@gmail.com>
Newsgroups	linux.kernel
Subject	Re: Multiple longjmp definitions with STATIC_LINKING=y
Date	2017-05-24 03:20 +0200
Message-ID	<tKt7X-3hP-1@gated-at.bofh.it> (permalink)
References	<tK8Ge-60t-7@gated-at.bofh.it> <tKcqv-8q9-33@gated-at.bofh.it> <tKn2y-73c-15@gated-at.bofh.it>
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On 05/23/2017 11:42 AM, Florian Fainelli wrote:
> 
> make -C
> /local/users/fainelli/openwrt/trunk/build_dir/target-x86_64_musl/linux-uml/linux-4.4.69
> HOSTCFLAGS="-O2
> -I/local/users/fainelli/openwrt/trunk/staging_dir/host/include
> -I/local/users/fainelli/openwrt/trunk/staging_dir/host/usr/include
> -Wall -Wmissing-prototypes -Wstrict-prototypes" CROSS_COMPILE=""
> ARCH="um" KBUILD_HAVE_NLS=no KBUILD_BUILD_USER="" KBUILD_BUILD_HOST=""
> KBUILD_BUILD_TIMESTAMP="Tue May 23 03:21:55 2017"
> KBUILD_BUILD_VERSION="0"
> HOST_LOADLIBES="-L/local/users/fainelli/openwrt/trunk/staging_dir/host/lib"
> CONFIG_SHELL="bash" V=''  cmd_syscalls= CC="gcc" modules
> make[5]: Entering directory `/local/users/fainelli/linux'
>   CHK     include/generated/uapi/linux/version.h
>   CHK     include/config/kernel.release
>   CHK     include/generated/utsrelease.h
>   CHK     scripts/mod/devicetable-offsets.h
>   CC      arch/x86/um/user-offsets.s
> arch/x86/um/user-offsets.c: In function 'foo':
> arch/x86/um/user-offsets.c:53: error: invalid application of 'sizeof' to
> incomplete type 'struct _xstate'
> make[6]: *** [arch/x86/um/user-offsets.s] Error 1
> make[5]: *** [arch/x86/um/user-offsets.s] Error 2
> make[5]: Leaving directory `/local/users/fainelli/linux'
> 
> Sounds familiar?

Found the problem and submitted a candidate fix to keep UML from both
building and running on older hosts.
-- 
Florian

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Multiple longjmp definitions with STATIC_LINKING=y Florian Fainelli <f.fainelli@gmail.com> - 2017-05-23 05:30 +0200
  Re: Multiple longjmp definitions with STATIC_LINKING=y Richard Weinberger <richard@nod.at> - 2017-05-23 09:30 +0200
    Re: Multiple longjmp definitions with STATIC_LINKING=y Florian Fainelli <f.fainelli@gmail.com> - 2017-05-23 20:50 +0200
      Re: Multiple longjmp definitions with STATIC_LINKING=y Florian Fainelli <f.fainelli@gmail.com> - 2017-05-24 03:20 +0200

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