1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (C) 2017 Andes Technology Corporation */
4 #include <linux/init.h>
5 #include <linux/linkage.h>
8 #include <asm/unistd.h>
9 #include <asm/thread_info.h>
10 #include <asm/asm-offsets.h>
11 #include <asm-generic/export.h>
12 #include <asm/ftrace.h>
16 #define FENTRY_RA_OFFSET 8
17 #define ABI_SIZE_ON_STACK 80
30 addi sp, sp, -ABI_SIZE_ON_STACK
56 addi sp, sp, ABI_SIZE_ON_STACK
59 #ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS
61 addi sp, sp, -PT_SIZE_ON_STACK
123 REG_L x26, PT_S10(sp)
124 REG_L x27, PT_S11(sp)
130 addi sp, sp, PT_SIZE_ON_STACK
132 #endif /* CONFIG_DYNAMIC_FTRACE_WITH_REGS */
137 addi a0, t0, -FENTRY_RA_OFFSET
138 la a1, function_trace_op
147 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
150 addi a1, a1, -FENTRY_RA_OFFSET
151 #ifdef HAVE_FUNCTION_GRAPH_FP_TEST
155 .global ftrace_graph_call
160 ENDPROC(ftrace_caller)
162 #ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS
163 ENTRY(ftrace_regs_caller)
166 addi a0, t0, -FENTRY_RA_OFFSET
167 la a1, function_trace_op
173 .global ftrace_regs_call
176 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
179 addi a1, a1, -FENTRY_RA_OFFSET
180 #ifdef HAVE_FUNCTION_GRAPH_FP_TEST
183 ftrace_graph_regs_call:
184 .global ftrace_graph_regs_call
190 ENDPROC(ftrace_regs_caller)
191 #endif /* CONFIG_DYNAMIC_FTRACE_WITH_REGS */