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c608906165
Avoid adding kprobes to any of the kernel entry/exit or startup assembly code, or code in the identity-mapped region. This code does not conform to the standard C conventions, which means that the expectations of the kprobes code is not forfilled. Placing kprobes at some of these locations results in the kernel trying to return to userspace addresses while retaining the CPU in kernel mode. Tested-by: Naresh Kamboju <naresh.kamboju@linaro.org> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
31 lines
785 B
C
31 lines
785 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_ARM_SECTIONS_H
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#define _ASM_ARM_SECTIONS_H
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#include <asm-generic/sections.h>
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extern char _exiprom[];
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extern char __idmap_text_start[];
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extern char __idmap_text_end[];
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extern char __entry_text_start[];
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extern char __entry_text_end[];
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extern char __hyp_idmap_text_start[];
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extern char __hyp_idmap_text_end[];
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static inline bool in_entry_text(unsigned long addr)
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{
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return memory_contains(__entry_text_start, __entry_text_end,
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(void *)addr, 1);
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}
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static inline bool in_idmap_text(unsigned long addr)
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{
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void *a = (void *)addr;
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return memory_contains(__idmap_text_start, __idmap_text_end, a, 1) ||
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memory_contains(__hyp_idmap_text_start, __hyp_idmap_text_end,
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a, 1);
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}
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#endif /* _ASM_ARM_SECTIONS_H */
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