riscv: vdso: Prevent the compiler from inserting calls to memset()

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[ Upstream commit bf40167d54 ]

The compiler is smart enough to insert a call to memset() in
riscv_vdso_get_cpus(), which generates a dynamic relocation.

So prevent this by using -fno-builtin option.

Fixes: e2c0cdfba7 ("RISC-V: User-facing API")
Cc: stable@vger.kernel.org
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Guo Ren <guoren@kernel.org>
Link: https://lore.kernel.org/r/20241016083625.136311-2-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Alexandre Ghiti 2024-10-16 10:36:24 +02:00 • committed by Greg Kroah-Hartman

parent e79c1f1c91

commit c19a0c171d

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arch/riscv/kernel/vdso/Makefile

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