diff options
Diffstat (limited to 'include/linux/execmem.h')
| -rw-r--r-- | include/linux/execmem.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/execmem.h b/include/linux/execmem.h index dfdf19f8a5e8..1517fa196bf7 100644 --- a/include/linux/execmem.h +++ b/include/linux/execmem.h @@ -53,6 +53,20 @@ enum execmem_range_flags { EXECMEM_ROX_CACHE = (1 << 1), }; +#ifdef CONFIG_ARCH_HAS_EXECMEM_ROX +/** + * execmem_fill_trapping_insns - set memory to contain instructions that + * will trap + * @ptr: pointer to memory to fill + * @size: size of the range to fill + * @writable: is the memory poited by @ptr is writable or ROX + * + * A hook for architecures to fill execmem ranges with invalid instructions. + * Architectures that use EXECMEM_ROX_CACHE must implement this. + */ +void execmem_fill_trapping_insns(void *ptr, size_t size, bool writable); +#endif + /** * struct execmem_range - definition of an address space suitable for code and * related data allocations |