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92652cf986
To follow the existing per-arch conventions replace open-coded uses of asm "sp" as "current_stack_pointer". This will let it be used in non-arch places (like HARDENED_USERCOPY). Cc: Chris Zankel <chris@zankel.net> Cc: Marc Zyngier <maz@kernel.org> Cc: linux-xtensa@linux-xtensa.org Signed-off-by: Kees Cook <keescook@chromium.org> Acked-by: Max Filippov <jcmvbkbc@gmail.com> Link: https://lore.kernel.org/lkml/CAMo8BfJFJE-n3=AF+pb9_6oF3gzxX7a+7aBrASHjjNX5byqDqw@mail.gmail.com
40 lines
740 B
C
40 lines
740 B
C
/*
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* include/asm-xtensa/current.h
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2001 - 2005 Tensilica Inc.
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*/
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#ifndef _XTENSA_CURRENT_H
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#define _XTENSA_CURRENT_H
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#include <asm/thread_info.h>
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#ifndef __ASSEMBLY__
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#include <linux/thread_info.h>
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struct task_struct;
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static inline struct task_struct *get_current(void)
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{
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return current_thread_info()->task;
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}
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#define current get_current()
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register unsigned long current_stack_pointer __asm__("a1");
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#else
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#define GET_CURRENT(reg,sp) \
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GET_THREAD_INFO(reg,sp); \
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l32i reg, reg, TI_TASK \
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#endif
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#endif /* XTENSA_CURRENT_H */
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