1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _LINUX_FTRACE_REGS_H 3 #define _LINUX_FTRACE_REGS_H 4 5 /* 6 * For archs that just copy pt_regs in ftrace regs, it can use this default. 7 * If an architecture does not use pt_regs, it must define all the below 8 * accessor functions. 9 */ 10 #ifndef HAVE_ARCH_FTRACE_REGS 11 struct __arch_ftrace_regs { 12 struct pt_regs regs; 13 }; 14 15 #define arch_ftrace_regs(fregs) ((struct __arch_ftrace_regs *)(fregs)) 16 17 struct ftrace_regs; 18 19 #define ftrace_regs_get_instruction_pointer(fregs) \ 20 instruction_pointer(&arch_ftrace_regs(fregs)->regs) 21 #define ftrace_regs_get_argument(fregs, n) \ 22 regs_get_kernel_argument(&arch_ftrace_regs(fregs)->regs, n) 23 #define ftrace_regs_get_stack_pointer(fregs) \ 24 kernel_stack_pointer(&arch_ftrace_regs(fregs)->regs) 25 #define ftrace_regs_get_return_value(fregs) \ 26 regs_return_value(&arch_ftrace_regs(fregs)->regs) 27 #define ftrace_regs_set_return_value(fregs, ret) \ 28 regs_set_return_value(&arch_ftrace_regs(fregs)->regs, ret) 29 #define ftrace_override_function_with_return(fregs) \ 30 override_function_with_return(&arch_ftrace_regs(fregs)->regs) 31 #define ftrace_regs_query_register_offset(name) \ 32 regs_query_register_offset(name) 33 #define ftrace_regs_get_frame_pointer(fregs) \ 34 frame_pointer(&arch_ftrace_regs(fregs)->regs) 35 36 #endif /* HAVE_ARCH_FTRACE_REGS */ 37 38 #endif /* _LINUX_FTRACE_REGS_H */ 39