undefined reference to `drm_fb_helper_fini'

[Thomas Zimmermann]

Hi,

thanks for the bug report. Arnd just sent a fix, I think.

https://lore.kernel.org/dri-devel/20250122064655.1095176-1-arnd@kernel.org/T/#u

Best regards
Thomas


Am 21.01.25 um 13:06 schrieb Marc Kleine-Budde:
> Hello,
>
> while working on something completely different, I stumbled over this
> linker problem, during final linking of the kernel.
>
> - ARCH=arm64
> - linux: v6.13
> - gcc version 12.2.0 (Debian 12.2.0-14)
> - GNU ld (GNU Binutils for Debian) 2.40
> - .config is attached
>
> | aarch64-linux-gnu-ld: Unexpected GOT/PLT entries detected!
> | aarch64-linux-gnu-ld: Unexpected run-time procedure linkages detected!
> | aarch64-linux-gnu-ld: drivers/gpu/drm/drm_fbdev_shmem.o: in function `drm_fbdev_shmem_fb_destroy':
> | drivers/gpu/drm/drm_fbdev_shmem.c:62: undefined reference to `drm_fb_helper_fini'
> | aarch64-linux-gnu-ld: drivers/gpu/drm/drm_fbdev_shmem.c:67: undefined reference to `drm_fb_helper_unprepare'
> | aarch64-linux-gnu-ld: drivers/gpu/drm/drm_fbdev_shmem.o: in function `drm_fbdev_shmem_fb_mmap':
> | drivers/gpu/drm/drm_fbdev_shmem.c:45: undefined reference to `drm_gem_fb_get_obj'
> | aarch64-linux-gnu-ld: drivers/gpu/drm/drm_fbdev_shmem.o: in function `drm_fbdev_shmem_defio_imageblit':
> | drivers/gpu/drm/drm_fbdev_shmem.c:37: undefined reference to `drm_fb_helper_damage_area'
> | aarch64-linux-gnu-ld: drivers/gpu/drm/drm_fbdev_shmem.o: in function `drm_fbdev_shmem_defio_copyarea':
> | drivers/gpu/drm/drm_fbdev_shmem.c:37: undefined reference to `drm_fb_helper_damage_area'
> | aarch64-linux-gnu-ld: drivers/gpu/drm/drm_fbdev_shmem.o: in function `drm_fbdev_shmem_defio_fillrect':
> | drivers/gpu/drm/drm_fbdev_shmem.c:37: undefined reference to `drm_fb_helper_damage_area'
> | aarch64-linux-gnu-ld: drivers/gpu/drm/drm_fbdev_shmem.o: in function `drm_fbdev_shmem_defio_write':
> | drivers/gpu/drm/drm_fbdev_shmem.c:37: undefined reference to `drm_fb_helper_damage_range'
> | aarch64-linux-gnu-ld: drivers/gpu/drm/drm_fbdev_shmem.o: in function `drm_fbdev_shmem_driver_fbdev_probe':
> | drivers/gpu/drm/drm_fbdev_shmem.c:171: undefined reference to `drm_fb_helper_alloc_info'
> | aarch64-linux-gnu-ld: drivers/gpu/drm/drm_fbdev_shmem.c:177: undefined reference to `drm_fb_helper_fill_info'
> | aarch64-linux-gnu-ld: drivers/gpu/drm/drm_fbdev_shmem.c:192: undefined reference to `drm_fb_helper_deferred_io'
> | aarch64-linux-gnu-ld: drivers/gpu/drm/drm_fbdev_shmem.o: relocation R_AARCH64_ADR_PREL_PG_HI21 against symbol `drm_fb_helper_deferred_io' which may bind externally can not be used when making a shared object; recompile with -fPIC
> | drivers/gpu/drm/drm_fbdev_shmem.c:192:(.text+0x54c): dangerous relocation: unsupported relocation
> | aarch64-linux-gnu-ld: drivers/gpu/drm/drm_fbdev_shmem.c:192: undefined reference to `drm_fb_helper_deferred_io'
> | aarch64-linux-gnu-ld: drivers/gpu/drm/drm_fbdev_shmem.c:202: undefined reference to `drm_fb_helper_release_info'
> | aarch64-linux-gnu-ld: drivers/gpu/drm/drm_fbdev_shmem.o: in function `drm_fbdev_shmem_get_page':
> | drivers/gpu/drm/drm_fbdev_shmem.c:86: undefined reference to `drm_gem_fb_get_obj'
> | aarch64-linux-gnu-ld: drivers/gpu/drm/drm_fbdev_shmem.o:(.rodata+0x38): undefined reference to `drm_fb_helper_check_var'
> | aarch64-linux-gnu-ld: drivers/gpu/drm/drm_fbdev_shmem.o:(.rodata+0x40): undefined reference to `drm_fb_helper_set_par'
> | aarch64-linux-gnu-ld: drivers/gpu/drm/drm_fbdev_shmem.o:(.rodata+0x50): undefined reference to `drm_fb_helper_setcmap'
> | aarch64-linux-gnu-ld: drivers/gpu/drm/drm_fbdev_shmem.o:(.rodata+0x58): undefined reference to `drm_fb_helper_blank'
> | aarch64-linux-gnu-ld: drivers/gpu/drm/drm_fbdev_shmem.o:(.rodata+0x60): undefined reference to `drm_fb_helper_pan_display'
> | aarch64-linux-gnu-ld: drivers/gpu/drm/drm_fbdev_shmem.o:(.rodata+0x90): undefined reference to `drm_fb_helper_ioctl'
> | aarch64-linux-gnu-ld: drivers/gpu/drm/drm_fbdev_shmem.o:(.rodata+0xb8): undefined reference to `drm_fb_helper_debug_enter'
> | aarch64-linux-gnu-ld: drivers/gpu/drm/drm_fbdev_shmem.o:(.rodata+0xc0): undefined reference to `drm_fb_helper_debug_leave'
>
> regards,
> Marc
>

-- 
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
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