gdb: add target_ops::supports_displaced_step

[deliverable/binutils-gdb.git] / gdb / nios2-tdep.h

diff --git a/gdb/nios2-tdep.h b/gdb/nios2-tdep.h
index b559a8b0f29442f2a530f4bd152641e54e3a0760..7f83b2adca241b9ea06bde4515c6cc9fc33d2551 100644 (file)
--- a/gdb/nios2-tdep.h
+++ b/gdb/nios2-tdep.h
@@ -1,5 +1,5 @@
 /* Target-dependent header for the Nios II architecture, for GDB.
-   Copyright (C) 2012-2014 Free Software Foundation, Inc.
+   Copyright (C) 2012-2020 Free Software Foundation, Inc.
    Contributed by Mentor Graphics, Inc.
 
    This file is part of GDB.
@@ -20,6 +20,9 @@
 #ifndef NIOS2_TDEP_H
 #define NIOS2_TDEP_H
 
+/* Nios II ISA specific encodings and macros.  */
+#include "opcode/nios2.h"
+
 /* Registers.  */
 #define NIOS2_Z_REGNUM 0     /* Zero */
 #define NIOS2_R2_REGNUM 2    /* used for return value */
@@ -61,13 +64,18 @@
 
 /* Size of an instruction, in bytes.  */
 #define NIOS2_OPCODE_SIZE 4
+#define NIOS2_CDX_OPCODE_SIZE 2
 
 /* Target-dependent structure in gdbarch.  */
 struct gdbarch_tdep
 {
   /* Assumes FRAME is stopped at a syscall (trap) instruction; returns
      the expected next PC.  */
-  CORE_ADDR (*syscall_next_pc) (struct frame_info *frame);
+  CORE_ADDR (*syscall_next_pc) (struct frame_info *frame,
+                               const struct nios2_opcode *op);
+
+  /* Returns true if PC points to a kernel helper function.  */
+  bool (*is_kernel_helper) (CORE_ADDR pc);
 
   /* Offset to PC value in jump buffer.
      If this is negative, longjmp support will be disabled.  */