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ee0d03053e
Hook up the generic vDSO implementation to the generic vDSO getrandom
implementation by providing the required __arch_chacha20_blocks_nostack
and getrandom_syscall implementations. Also wire up the selftests.
The benchmark result:
vdso: 25000000 times in 2.466341333 seconds
libc: 25000000 times in 41.447720005 seconds
syscall: 25000000 times in 41.043926672 seconds
vdso: 25000000 x 256 times in 162.286219353 seconds
libc: 25000000 x 256 times in 2953.855018685 seconds
syscall: 25000000 x 256 times in 2796.268546000 seconds
[ alex: - Fix dynamic relocation
- Squash Nathan's fix https://lore.kernel.org/all/20250423-riscv-fix-compat_vdso-lld-v2-1-b7bbbc244501@kernel.org/
- Add comment from Loongarch ]
Signed-off-by: Xi Ruoyao <xry111@xry111.site>
Link: https://lore.kernel.org/r/20250411024600.16045-1-xry111@xry111.site
Tested-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com>
21 lines
753 B
ArmAsm
21 lines
753 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2024 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
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*/
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#define __ASSEMBLY__
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#if defined(__aarch64__)
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#include "../../../../arch/arm64/kernel/vdso/vgetrandom-chacha.S"
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#elif defined(__loongarch__)
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#include "../../../../arch/loongarch/vdso/vgetrandom-chacha.S"
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#elif defined(__powerpc__) || defined(__powerpc64__)
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#include "../../../../arch/powerpc/kernel/vdso/vgetrandom-chacha.S"
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#elif defined(__riscv) && __riscv_xlen == 64
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#include "../../../../arch/riscv/kernel/vdso/vgetrandom-chacha.S"
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#elif defined(__s390x__)
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#include "../../../../arch/s390/kernel/vdso64/vgetrandom-chacha.S"
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#elif defined(__x86_64__)
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#include "../../../../arch/x86/entry/vdso/vgetrandom-chacha.S"
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#endif
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