Multiple longjmp definitions with STATIC_LINKING=y

From	Florian Fainelli <f.fainelli@gmail.com>
Newsgroups	linux.kernel
Subject	Multiple longjmp definitions with STATIC_LINKING=y
Date	2017-05-23 05:30 +0200
Message-ID	<tK8Ge-60t-7@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

Show all headers | View raw

Hi Richard,

I have been playing with UML again and trying to get it to statically
link on a CentOS 6.9 host that has:

glibc-2.12-static
gcc-4.4

installed results in the following:

/usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../lib64/libpthread.a(libpthread.o):
In function `siglongjmp':
(.text+0x8490): multiple definition of `longjmp'
arch/x86/um/built-in.o:/local/users/fainelli/openwrt/trunk/build_dir/target-x86_64_musl/linux-uml/linux-4.4.69/arch/x86/um/setjmp_64.S:44:
first defined here
/usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../lib64/libpthread.a(libpthread.o):
In function `sem_open':
(.text+0x77cd): warning: the use of `mktemp' is dangerous, better use
`mkstemp'
collect2: ld returned 1 exit status
make[4]: *** [vmlinux] Error 1

Should we have some linker script magic not to export this symbol and
prevent a clash with libpthread.a pulling its own version?

Thanks!
-- 
Florian

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

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

csiph-web