229a718605
Generate irqentry and softirqentry text sections without any Kconfig dependencies. This will add extra sections, but there should be no performace impact. Suggested-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: Chris Zankel <chris@zankel.net> Cc: David S . Miller <davem@davemloft.net> Cc: Francis Deslauriers <francis.deslauriers@efficios.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: linux-arch@vger.kernel.org Cc: linux-cris-kernel@axis.com Cc: mathieu.desnoyers@efficios.com Link: http://lkml.kernel.org/r/150172789110.27216.3955739126693102122.stgit@devbox Signed-off-by: Ingo Molnar <mingo@kernel.org>
57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
/*
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* Based on arch/arm/include/asm/traps.h
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*
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* Copyright (C) 2012 ARM Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __ASM_TRAP_H
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#define __ASM_TRAP_H
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#include <linux/list.h>
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#include <asm/sections.h>
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struct pt_regs;
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struct undef_hook {
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struct list_head node;
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u32 instr_mask;
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u32 instr_val;
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u64 pstate_mask;
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u64 pstate_val;
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int (*fn)(struct pt_regs *regs, u32 instr);
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};
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void register_undef_hook(struct undef_hook *hook);
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void unregister_undef_hook(struct undef_hook *hook);
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void arm64_notify_segfault(struct pt_regs *regs, unsigned long addr);
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static inline int __in_irqentry_text(unsigned long ptr)
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{
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return ptr >= (unsigned long)&__irqentry_text_start &&
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ptr < (unsigned long)&__irqentry_text_end;
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}
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static inline int in_exception_text(unsigned long ptr)
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{
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int in;
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in = ptr >= (unsigned long)&__exception_text_start &&
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ptr < (unsigned long)&__exception_text_end;
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return in ? : __in_irqentry_text(ptr);
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}
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#endif
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