riscv: alternative: Use the statically extracted vDSO section offsets

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Currently the alternative sections are extracted from the vDSO
binaries at runtime. This has runtime overhead and also doesn't
work for the compat vDSO.

Use the offsets generated during the build instead, fixing both issues.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: Nam Cao <namcao@linutronix.de>
Link: https://patch.msgid.link/20260630-riscv-vdso32-alternative-v1-2-a32fd89b7b1c@linutronix.de
Signed-off-by: Paul Walmsley <pjw@kernel.org>

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Thomas Weißschuh 2026-08-07 19:24:33 -06:00 • committed by Paul Walmsley

parent 7f2a7bbcd9

commit 63aecaba41

1 changed files with 11 additions and 17 deletions

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arch/riscv/kernel/alternative.c

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