[Bug binutils/22431] New: ld (binutils-2.29) segfaults when building Linux kernel (v4.14) on Fedora 26 ppc64le

[mopsfelder at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=22431

            Bug ID: 22431
           Summary: ld (binutils-2.29) segfaults when building Linux
                    kernel (v4.14) on Fedora 26 ppc64le
           Product: binutils
           Version: 2.29
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: mopsfelder at gmail dot com
  Target Milestone: ---

Steps to reproduce:

- Make sure cross toolchain is installed:

sudo dnf install gcc-powerpc64-linux-gnu binutils-powerpc64-linux-gnu

- Clone Linux kernel mainline tree and build it with a specific .config:

git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
cd linux
curl http://kisskb.ellerman.id.au/kisskb/buildresult/13052890/config/ -o
.config
yes "" | make CROSS_COMPILE=powerpc64-linux-gnu- oldconfig
make -j$(nproc) ARCH=powerpc CROSS_COMPILE=powerpc64-linux-gnu- V=1

Actual results:

ld segfaults during kernel build:

+ powerpc64-linux-gnu-ld -EB -m elf64ppc -pie --orphan-handling=warn --build-id
-X -o .tmp_vmlinux1 -T ./arch/powerpc/kernel/vmlinux.lds --whole-archive
built-in.o --no-whole-archive --start-group lib/lib.a --end-group
scripts/link-vmlinux.sh: line 94: 50108 Segmentation fault      (core dumped)
${LD} ${LDFLAGS} ${LDFLAGS_vmlinux} -o ${2} -T ${lds} ${objects}

$ coredumpctl info 50108
           PID: 50108 (powerpc64-linux)
           UID: 1000 (muriloo)
           GID: 1000 (muriloo)
        Signal: 11 (SEGV)
     Timestamp: Mon 2017-11-13 12:58:39 UTC (36s ago)
  Command Line: powerpc64-linux-gnu-ld -EB -m elf64ppc -pie
--orphan-handling=warn --build-id -X -o .tmp_vmlinux1 -T
./arch/powerpc/kernel/vmlinux.lds --whole-archive built-in.o --no-whole-archive
--start-group lib/lib.a --end-group
    Executable: /usr/bin/powerpc64-linux-gnu-ld
 Control Group: /user.slice/user-1000.slice/session-45.scope
          Unit: session-45.scope
         Slice: user-1000.slice
       Session: 45
     Owner UID: 1000 (muriloo)
       Boot ID: d8210aa3d4294fff8d0c0aa029c54003
    Machine ID: cce67ab87a11416cbcc2d3df27174b61
      Hostname: localhost.localdomain
       Storage:
/var/lib/systemd/coredump/core.powerpc64-linux.1000.d8210aa3d4294fff8d0c0aa029c54003.50108.1510577919000000.lz4
       Message: Process 50108 (powerpc64-linux) of user 1000 dumped core.

                Stack trace of thread 50108:
                #0  0x00000000100bac6c ppc_size_one_stub
(powerpc64-linux-gnu-ld)
                #1  0x000000001008c164 bfd_hash_traverse
(powerpc64-linux-gnu-ld)
                #2  0x00000000100bff98 ppc64_elf_size_stubs
(powerpc64-linux-gnu-ld)
                #3  0x0000000010040e38 gldelf64ppc_after_allocation
(powerpc64-linux-gnu-ld)
                #4  0x00000000100341cc ldemul_after_allocation
(powerpc64-linux-gnu-ld)
                #5  0x0000000010026f9c lang_process (powerpc64-linux-gnu-ld)
                #6  0x000000001000466c main (powerpc64-linux-gnu-ld)
                #7  0x00007fffb2a02f20 generic_start_main (libc.so.6)
                #8  0x00007fffb2a03118 __libc_start_main (libc.so.6)

I tested with the default binutils from Fedora 26:
binutils-2.27-28.fc26.ppc64le

I also tested with binutils-2.29 from Fedora rawhide (built for Fedora 26):
https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/source/tree/Packages/c/cross-binutils-2.29.1-1.fc28.src.rpm

$ rpm -qa | grep binutils | sort
binutils-2.27-28.fc26.ppc64le
binutils-powerpc64-linux-gnu-2.29.1-1.fc26.ppc64le
cross-binutils-common-2.29.1-1.fc26.noarch

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