summaryrefslogtreecommitdiffstats
path: root/arch/csky/include/asm/ptrace.h
diff options
context:
space:
mode:
authorGuo Ren <ren_guo@c-sky.com>2019-03-26 08:56:33 +0100
committerGuo Ren <ren_guo@c-sky.com>2019-04-22 07:44:57 +0200
commitf335b10f3b6ca2d11adef95092fff65152c31b48 (patch)
tree8cfe88677993d69023f1d6202e3032fe8b90359b /arch/csky/include/asm/ptrace.h
parentcsky: mm/fault.c: Remove duplicate header (diff)
downloadlinux-f335b10f3b6ca2d11adef95092fff65152c31b48.tar.xz
linux-f335b10f3b6ca2d11adef95092fff65152c31b48.zip
csky: Add non-uapi asm/ptrace.h namespace
Move #ifdef __KERNEL__ code in the uapi namespace to non-uapi include/asm/ptrace.h namespace and remove #ifdef __KERNEL__ in include/asm/ptrace.h. Seperate ptrace.h in uapi and non-uapi is more common and clear. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Cc: Dmitry V. Levin <ldv@altlinux.org>
Diffstat (limited to 'arch/csky/include/asm/ptrace.h')
-rw-r--r--arch/csky/include/asm/ptrace.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/csky/include/asm/ptrace.h b/arch/csky/include/asm/ptrace.h
new file mode 100644
index 000000000000..1e00578166f0
--- /dev/null
+++ b/arch/csky/include/asm/ptrace.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
+
+#ifndef __ASM_CSKY_PTRACE_H
+#define __ASM_CSKY_PTRACE_H
+
+#include <uapi/asm/ptrace.h>
+
+#ifndef __ASSEMBLY__
+
+#define PS_S 0x80000000 /* Supervisor Mode */
+
+#define arch_has_single_step() (1)
+#define current_pt_regs() \
+({ (struct pt_regs *)((char *)current_thread_info() + THREAD_SIZE) - 1; })
+
+#define user_stack_pointer(regs) ((regs)->usp)
+
+#define user_mode(regs) (!((regs)->sr & PS_S))
+#define instruction_pointer(regs) ((regs)->pc)
+#define profile_pc(regs) instruction_pointer(regs)
+
+static inline unsigned long regs_return_value(struct pt_regs *regs)
+{
+ return regs->a0;
+}
+
+#endif /* __ASSEMBLY__ */
+#endif /* __ASM_CSKY_PTRACE_H */