1 files changed, 28 insertions, 0 deletions
diff --git a/arch/alpha/include/asm/ptrace.h b/arch/alpha/include/asm/ptrace.h
new file mode 100644
index 000000000..df5f317ab
--- /dev/null
+++ b/arch/alpha/include/asm/ptrace.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASMAXP_PTRACE_H
+#define _ASMAXP_PTRACE_H
+
+#include <uapi/asm/ptrace.h>
+
+
+#define arch_has_single_step()		(1)
+#define user_mode(regs) (((regs)->ps & 8) != 0)
+#define instruction_pointer(regs) ((regs)->pc)
+#define profile_pc(regs) instruction_pointer(regs)
+#define current_user_stack_pointer() rdusp()
+
+#define task_pt_regs(task) \
+  ((struct pt_regs *) (task_stack_page(task) + 2*PAGE_SIZE) - 1)
+
+#define current_pt_regs() \
+  ((struct pt_regs *) ((char *)current_thread_info() + 2*PAGE_SIZE) - 1)
+#define signal_pt_regs current_pt_regs
+
+#define force_successful_syscall_return() (current_pt_regs()->r0 = 0)
+
+static inline unsigned long regs_return_value(struct pt_regs *regs)
+{
+	return regs->r0;
+}
+
+#endif