forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
42 lines
1.1 KiB
42 lines
1.1 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
|
#ifndef _ASM_GENERIC_ERROR_INJECTION_H |
|
#define _ASM_GENERIC_ERROR_INJECTION_H |
|
|
|
#if defined(__KERNEL__) && !defined(__ASSEMBLY__) |
|
enum { |
|
EI_ETYPE_NONE, /* Dummy value for undefined case */ |
|
EI_ETYPE_NULL, /* Return NULL if failure */ |
|
EI_ETYPE_ERRNO, /* Return -ERRNO if failure */ |
|
EI_ETYPE_ERRNO_NULL, /* Return -ERRNO or NULL if failure */ |
|
EI_ETYPE_TRUE, /* Return true if failure */ |
|
}; |
|
|
|
struct error_injection_entry { |
|
unsigned long addr; |
|
int etype; |
|
}; |
|
|
|
struct pt_regs; |
|
|
|
#ifdef CONFIG_FUNCTION_ERROR_INJECTION |
|
/* |
|
* Whitelist ganerating macro. Specify functions which can be |
|
* error-injectable using this macro. |
|
*/ |
|
#define ALLOW_ERROR_INJECTION(fname, _etype) \ |
|
static struct error_injection_entry __used \ |
|
__section("_error_injection_whitelist") \ |
|
_eil_addr_##fname = { \ |
|
.addr = (unsigned long)fname, \ |
|
.etype = EI_ETYPE_##_etype, \ |
|
}; |
|
|
|
void override_function_with_return(struct pt_regs *regs); |
|
#else |
|
#define ALLOW_ERROR_INJECTION(fname, _etype) |
|
|
|
static inline void override_function_with_return(struct pt_regs *regs) { } |
|
#endif |
|
#endif |
|
|
|
#endif /* _ASM_GENERIC_ERROR_INJECTION_H */
|
|
|