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-rw-r--r--arch/nds32/include/asm/ptrace.h77
1 files changed, 77 insertions, 0 deletions
diff --git a/arch/nds32/include/asm/ptrace.h b/arch/nds32/include/asm/ptrace.h
new file mode 100644
index 000000000..919ee2236
--- /dev/null
+++ b/arch/nds32/include/asm/ptrace.h
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+// Copyright (C) 2005-2017 Andes Technology Corporation
+
+#ifndef __ASM_NDS32_PTRACE_H
+#define __ASM_NDS32_PTRACE_H
+
+#include <uapi/asm/ptrace.h>
+
+/*
+ * If pt_regs.syscallno == NO_SYSCALL, then the thread is not executing
+ * a syscall -- i.e., its most recent entry into the kernel from
+ * userspace was not via syscall, or otherwise a tracer cancelled the
+ * syscall.
+ *
+ * This must have the value -1, for ABI compatibility with ptrace etc.
+ */
+#define NO_SYSCALL (-1)
+#ifndef __ASSEMBLY__
+#include <linux/types.h>
+
+struct pt_regs {
+ union {
+ struct user_pt_regs user_regs;
+ struct {
+ long uregs[26];
+ long fp;
+ long gp;
+ long lp;
+ long sp;
+ long ipc;
+#if defined(CONFIG_HWZOL)
+ long lb;
+ long le;
+ long lc;
+#else
+ long dummy[3];
+#endif
+ long syscallno;
+ };
+ };
+ long orig_r0;
+ long ir0;
+ long ipsw;
+ long pipsw;
+ long pipc;
+ long pp0;
+ long pp1;
+ long fucop_ctl;
+ long osp;
+};
+
+static inline bool in_syscall(struct pt_regs const *regs)
+{
+ return regs->syscallno != NO_SYSCALL;
+}
+
+static inline void forget_syscall(struct pt_regs *regs)
+{
+ regs->syscallno = NO_SYSCALL;
+}
+static inline unsigned long regs_return_value(struct pt_regs *regs)
+{
+ return regs->uregs[0];
+}
+extern void show_regs(struct pt_regs *);
+/* Avoid circular header include via sched.h */
+struct task_struct;
+
+#define arch_has_single_step() (1)
+#define user_mode(regs) (((regs)->ipsw & PSW_mskPOM) == 0)
+#define interrupts_enabled(regs) (!!((regs)->ipsw & PSW_mskGIE))
+#define user_stack_pointer(regs) ((regs)->sp)
+#define instruction_pointer(regs) ((regs)->ipc)
+#define profile_pc(regs) instruction_pointer(regs)
+
+#endif /* __ASSEMBLY__ */
+#endif