1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef DIV_ROUND_UP 3 #define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d)) 4 #endif 5 6 #define SIZEOF_MCOUNT_LOC_ENTRY 8 7 #define SIZEOF_FTRACE_HOTPATCH_TRAMPOLINE 24 8 #define FTRACE_HOTPATCH_TRAMPOLINES_SIZE(n) \ 9 DIV_ROUND_UP(SIZEOF_FTRACE_HOTPATCH_TRAMPOLINE * (n), \ 10 SIZEOF_MCOUNT_LOC_ENTRY) 11 12 #ifdef CONFIG_FUNCTION_TRACER 13 #define FTRACE_HOTPATCH_TRAMPOLINES_TEXT \ 14 . = ALIGN(8); \ 15 __ftrace_hotpatch_trampolines_start = .; \ 16 . = . + FTRACE_HOTPATCH_TRAMPOLINES_SIZE(__stop_mcount_loc - \ 17 __start_mcount_loc); \ 18 __ftrace_hotpatch_trampolines_end = .; 19 #else 20 #define FTRACE_HOTPATCH_TRAMPOLINES_TEXT 21 #endif 22