linux/arch/csky/include/asm/ftrace.h

/* SPDX-License-Identifier: GPL-2.0 */
// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.

#ifndef __ASM_CSKY_FTRACE_H
#define __ASM_CSKY_FTRACE_H

#define MCOUNT_INSN_SIZE 4

#define HAVE_FUNCTION_GRAPH_FP_TEST

#define HAVE_FUNCTION_GRAPH_RET_ADDR_PTR

#endif /* __ASM_CSKY_FTRACE_H */
csky: basic ftrace supported When gcc with -pg, it'll add _mcount stub in every function. We need implement the _mcount in kernel and ftrace depends on stackstrace. To do: call-graph, dynamic ftrace Signed-off-by: Guo Ren <ren_guo@c-sky.com> 2018-12-09 06:29:59 +00:00			`/* SPDX-License-Identifier: GPL-2.0 */`
			`// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.`

			`#ifndef __ASM_CSKY_FTRACE_H`
			`#define __ASM_CSKY_FTRACE_H`

csky: ftrace call graph supported. With csky-gcc -pg -mbacktrace, ftrace call graph supported. Signed-off-by: Guo Ren <ren_guo@c-sky.com> 2018-12-15 13:04:27 +00:00			`#define MCOUNT_INSN_SIZE 4`

			`#define HAVE_FUNCTION_GRAPH_FP_TEST`

			`#define HAVE_FUNCTION_GRAPH_RET_ADDR_PTR`
csky: basic ftrace supported When gcc with -pg, it'll add _mcount stub in every function. We need implement the _mcount in kernel and ftrace depends on stackstrace. To do: call-graph, dynamic ftrace Signed-off-by: Guo Ren <ren_guo@c-sky.com> 2018-12-09 06:29:59 +00:00
			`#endif /* __ASM_CSKY_FTRACE_H */`