https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68759
Bug ID: 68759
Summary: [6 Regression] Linux kernel build failure on ppc64le
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: trippels at gcc dot gnu.org
CC: uweigand at gcc dot gnu.org
Target Milestone: ---
Host: powerpc64le-unknown-linux-gnu
Target: powerpc64le-unknown-linux-gnu
Build: powerpc64le-unknown-linux-gnu
Building the Linux kernel (allyesconfig) fails on ppc64le:
...
BOOTCC arch/powerpc/boot/inftrees.o
BOOTCC arch/powerpc/boot/inflate.o
BOOTAR arch/powerpc/boot/wrapper.a
WRAP arch/powerpc/boot/zImage.pseries
WRAP arch/powerpc/boot/zImage.epapr
ERROR: "__connect" [virt/lib/irqbypass.ko] undefined!
ERROR: "snd_usX2Y_pcm_pointer" [sound/usb/usx2y/snd-usb-usx2y.ko] undefined!
ERROR: "snd_us428ctls_poll" [sound/usb/usx2y/snd-usb-usx2y.ko] undefined!
ERROR: "i_usX2Y_Out04Int" [sound/usb/usx2y/snd-usb-usx2y.ko] undefined!
ERROR: "snd_usbmidi_output_standard_packet" [sound/usb/snd-usbmidi-lib.ko]
undefined!
ERROR: "usb_chmap_ctl_info" [sound/usb/snd-usb-audio.ko] undefined!
ERROR: "ignore_interface_quirk" [sound/usb/snd-usb-audio.ko] undefined!
ERROR: "proc_audio_usbid_read" [sound/usb/snd-usb-audio.ko] undefined!
ERROR: "retire_capture_urb" [sound/usb/snd-usb-audio.ko] undefined!
ERROR: "scarlett_ctl_switch_info" [sound/usb/snd-usb-audio.ko] undefined!
ERROR: "snd_usb_sbrc_hwdep_poll" [sound/usb/snd-usb-audio.ko] undefined!
ERROR: "parse_uac2_sample_rate_range" [sound/usb/snd-usb-audio.ko] undefined!
ERROR: "wait_clear_urbs" [sound/usb/snd-usb-audio.ko] undefined!
ERROR: "__uac_clock_find_source" [sound/usb/snd-usb-audio.ko] undefined!
ERROR: "__usb_audio_resume" [sound/usb/snd-usb-audio.ko] undefined!
ERROR: "usb_error_string" [sound/usb/misc/snd-ua101.ko] undefined!
...
gcc-5 is fine and gcc-6 was fine a few weeks ago.
Haven't looked deeper yet, but I suspect the issue is caused by r231202.
