https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63592
Bug ID: 63592
Summary: Linux kernel build failure due to duplicate exported
symbols
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: sasha.levin at oracle dot com
CC: mpolacek at gcc dot gnu.org
Hi,
I'm seeing the following build failure with the Linux Kernel:
/home/sasha/linux-next/lib/mpi/mpi-inline.h:82: multiple definition of
`mpihelp_sub_1'
lib/mpi/generic_mpih-lshift.o:/home/sasha/linux-next/lib/mpi/mpi-inline.h:82:
first defined here
lib/mpi/mpih-div.o: In function `mpihelp_sub':
/home/sasha/linux-next/lib/mpi/mpi-inline.h:110: multiple definition of
`mpihelp_sub'
lib/mpi/generic_mpih-lshift.o:/home/sasha/linux-next/lib/mpi/mpi-inline.h:110:
first defined here
lib/mpi/mpih-mul.o: In function `mpihelp_add_1':
/home/sasha/linux-next/lib/mpi/mpi-inline.h:39: multiple definition of
`mpihelp_add_1'
lib/mpi/generic_mpih-lshift.o:/home/sasha/linux-next/lib/mpi/mpi-inline.h:39:
first defined here
lib/mpi/mpih-mul.o: In function `mpihelp_add':
/home/sasha/linux-next/lib/mpi/mpi-inline.h:67: multiple definition of
`mpihelp_add'
lib/mpi/generic_mpih-lshift.o:/home/sasha/linux-next/lib/mpi/mpi-inline.h:67:
first defined here
lib/mpi/mpih-mul.o: In function `mpihelp_sub_1':
/home/sasha/linux-next/lib/mpi/mpi-inline.h:82: multiple definition of
`mpihelp_sub_1'
lib/mpi/generic_mpih-lshift.o:/home/sasha/linux-next/lib/mpi/mpi-inline.h:82:
first defined here
lib/mpi/mpih-mul.o: In function `mpihelp_sub':
/home/sasha/linux-next/lib/mpi/mpi-inline.h:110: multiple definition of
`mpihelp_sub'
lib/mpi/generic_mpih-lshift.o:/home/sasha/linux-next/lib/mpi/mpi-inline.h:110:
first defined here
lib/mpi/mpi-pow.o: In function `mpihelp_add':
/home/sasha/linux-next/lib/mpi/mpi-inline.h:67: multiple definition of
`mpihelp_add'
lib/mpi/generic_mpih-lshift.o:/home/sasha/linux-next/lib/mpi/mpi-inline.h:67:
first defined here
lib/mpi/mpi-pow.o: In function `mpihelp_sub_1':
/home/sasha/linux-next/lib/mpi/mpi-inline.h:82: multiple definition of
`mpihelp_sub_1'
lib/mpi/generic_mpih-lshift.o:/home/sasha/linux-next/lib/mpi/mpi-inline.h:82:
first defined here
lib/mpi/mpi-pow.o: In function `mpihelp_sub':
/home/sasha/linux-next/lib/mpi/mpi-inline.h:110: multiple definition of
`mpihelp_sub'
lib/mpi/generic_mpih-lshift.o:/home/sasha/linux-next/lib/mpi/mpi-inline.h:110:
first defined here
lib/mpi/mpi-pow.o: In function `mpihelp_add_1':
/home/sasha/linux-next/lib/mpi/mpi-inline.h:39: multiple definition of
`mpihelp_add_1'
lib/mpi/generic_mpih-lshift.o:/home/sasha/linux-next/lib/mpi/mpi-inline.h:39:
first defined here
lib/mpi/mpiutil.o: In function `mpihelp_add':
/home/sasha/linux-next/lib/mpi/mpi-inline.h:67: multiple definition of
`mpihelp_add'
lib/mpi/generic_mpih-lshift.o:/home/sasha/linux-next/lib/mpi/mpi-inline.h:67:
first defined here
lib/mpi/mpiutil.o: In function `mpihelp_sub_1':
/home/sasha/linux-next/lib/mpi/mpi-inline.h:82: multiple definition of
`mpihelp_sub_1'
lib/mpi/generic_mpih-lshift.o:/home/sasha/linux-next/lib/mpi/mpi-inline.h:82:
first defined here
lib/mpi/mpiutil.o: In function `mpihelp_sub':
/home/sasha/linux-next/lib/mpi/mpi-inline.h:110: multiple definition of
`mpihelp_sub'
lib/mpi/generic_mpih-lshift.o:/home/sasha/linux-next/lib/mpi/mpi-inline.h:110:
first defined here
lib/mpi/mpiutil.o: In function `mpihelp_add_1':
/home/sasha/linux-next/lib/mpi/mpi-inline.h:39: multiple definition of
`mpihelp_add_1'
lib/mpi/generic_mpih-lshift.o:/home/sasha/linux-next/lib/mpi/mpi-inline.h:39:
first defined here
make[1]: *** [lib/mpi/mpi.o] Error 1
make: *** [lib/mpi/] Error 2
This was bisected down to GCC commit:
commit b2601928b5bf34a817b5a9a2a371c476018e634d
Author: mpolacek <mpolacek@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Wed Oct 15 10:08:00 2014 +0000
* doc/invoke.texi: Update to reflect that GNU11 is the default
mode for C.
* c-common.h (c_language_kind): Update comment.
c-family/
* c-opts.c (c_common_init_options): Make -std=gnu11 the default for C.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@216247
138bc75d-0d04-0410-961f-82ee72b054a4
