540adea380
Since error-injection framework is not limited to be used by kprobes, nor bpf. Other kernel subsystems can use it freely for checking safeness of error-injection, e.g. livepatch, ftrace etc. So this separate error-injection framework from kprobes. Some differences has been made: - "kprobe" word is removed from any APIs/structures. - BPF_ALLOW_ERROR_INJECTION() is renamed to ALLOW_ERROR_INJECTION() since it is not limited for BPF too. - CONFIG_FUNCTION_ERROR_INJECTION is the config item of this feature. It is automatically enabled if the arch supports error injection feature for kprobe or ftrace etc. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Reviewed-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
21 lines
599 B
C
21 lines
599 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_GENERIC_ERROR_INJECTION_H
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#define _ASM_GENERIC_ERROR_INJECTION_H
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#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
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#ifdef CONFIG_FUNCTION_ERROR_INJECTION
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/*
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* Whitelist ganerating macro. Specify functions which can be
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* error-injectable using this macro.
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*/
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#define ALLOW_ERROR_INJECTION(fname) \
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static unsigned long __used \
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__attribute__((__section__("_error_injection_whitelist"))) \
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_eil_addr_##fname = (unsigned long)fname;
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#else
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#define ALLOW_ERROR_INJECTION(fname)
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#endif
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#endif
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#endif /* _ASM_GENERIC_ERROR_INJECTION_H */
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