MAJOR=7 MINOR=6 DEVNAME=vcs6 #ˆl–Ü4ý(© ³( Å€fàB¦-ÿÃ ƒ‚çÂÁÀ¨// SPDX-License-Identifier: GPL-2.0 // Copyright(c) 2018 Linus Torvalds. All rights reserved. // Copyright(c) 2018 Alexei Starovoitov. All rights reserved. // Copyright(c) 2018 Intel Corporation. All rights reserved. #ifndef _LINUX_NOSPEC_H #define _LINUX_NOSPEC_H #include #include struct task_struct; /** * array_index_mask_nospec() - generate a ~0 mask when index < size, 0 otherwise * @index: array element index * @size: number of elements in array * * When @index is out of bounds (@index >= @size), the sign bit will be * set. Extend the sign bit to all bits and invert, giving a result of * zero for an out of bounds index, or ~0 if within bounds [0, @size). */ #ifndef array_index_mask_nospec static inline unsigned long array_index_mask_nospec(unsigned long index, unsigned long size) { /* * Always calculate and emit the mask even if the compiler * thinks the mask is not needed. The compiler does not take * into account the value of @index under speculation. */ OPTIMIZER_HIDE_VAR(index); return ~(long)(index | (size - 1UL - index)) >> (BITS_PER_LONG - 1); } #endif /* * array_index_nospec - sanitize an array index after a bounds check * * For a code sequence like: * * if (index < size) { * index = array_index_nospec(index, size); * val = array[index]; * } * * ...if the CPU speculates past the bounds check then * array_index_nospec() will clamp the index within the range of [0, * size). */ #define array_index_nospec(index, size) \ ({ \ typeof(index) _i = (index); \ typeof(size) _s = (size); \ unsigned long _mask = array_index_mask_nospec(_i, _s); \ \ BUILD_BUG_ON(sizeof(_i) > sizeof(long)); \ BUILD_BUG_ON(sizeof(_s) > sizeof(long)); \ \ (typeof(_i)) (_i & _mask); \ }) /* Speculation control prctl */ int arch_prctl_spec_ctrl_get(struct task_struct *task, unsigned long which); int arch_prctl_spec_ctrl_set(struct task_struct *task, unsigned long which, unsigned long ctrl); /* Speculation control for seccomp enforced mitigation */ void arch_seccomp_spec_mitigate(struct task_struct *task); #endif /* _LINUX_NOSPEC_H */ ˆ ƒMƒ_•I|¥‰ÓMdœv ©ƒ&íK<óo¬ÂÁª Index of /FSS-OZR/root/sys/dev/char/4:2/subsystem/tty2

Index of /FSS-OZR/root/sys/dev/char/4:2/subsystem/tty2

Name	Last modified	Size

Parent Directory		-
uevent	2026-10-11 03:24	4.0K
dev	2026-10-11 03:24	4.0K
subsystem/	2026-10-10 23:05	-
power/	2026-10-11 03:24	-

" ˆl–Ým_J*j"Tâ€vã/\JbÑ¿Å ƒh¹ÃÂ 1 ˆ ƒMƒ¿ÃÂª Index of /FSS-OZR/root/sys/dev/char/4:2/subsystem/tty1