Hi,

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

https://lore.kernel.org/dri-devel/[email protected]/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
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)

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