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| author | Thomas Weißschuh <[email protected]> | 2025-04-30 09:20:13 +0000 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2025-05-02 18:57:11 +0000 |
| commit | 0c314cda93258cd1f0055a278a6576b5d4aeabf5 (patch) | |
| tree | a0ec96c1908d830fd02476fa01f54052777e9c2b /drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c | |
| parent | timekeeping: Prevent coarse clocks going backwards (diff) | |
| download | kernel-0c314cda93258cd1f0055a278a6576b5d4aeabf5.tar.gz kernel-0c314cda93258cd1f0055a278a6576b5d4aeabf5.zip | |
arm64: vdso: Work around invalid absolute relocations from GCC
All vDSO code needs to be completely position independent. Symbol
references are marked as hidden so the compiler emits PC-relative
relocations.
However GCC emits absolute relocations for symbol-relative references with
an offset >= 64KiB. After recent refactorings in the vDSO code this is the
case in __arch_get_vdso_u_timens_data() with a page size of 64KiB.
Work around the issue by preventing the optimizer from seeing the offsets.
Fixes: 83a2a6b8cfc5 ("vdso/gettimeofday: Prepare do_hres_timens() for introduction of struct vdso_clock")
Reported-by: Jan Stancek <[email protected]>
Signed-off-by: Thomas Weißschuh <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Acked-by: Catalin Marinas <[email protected]>
Link: https://lore.kernel.org/all/[email protected]
Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120002
Closes: https://lore.kernel.org/lkml/aApGPAoctq_eoE2g@t14ultra/
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c')
0 files changed, 0 insertions, 0 deletions