* gdbthread.h (struct thread_info): Add comments around

[deliverable/binutils-gdb.git] / gdb / arch-utils.h

diff --git a/gdb/arch-utils.h b/gdb/arch-utils.h
index ee04ad5af3bc10cb61da2847bbd0658ac33c52a8..42306597ec80a51a20508fb2f8ca10cc8d51790d 100644 (file)
--- a/gdb/arch-utils.h
+++ b/gdb/arch-utils.h
@@ -1,6 +1,6 @@
 /* Dynamic architecture support for GDB, the GNU debugger.
 
-   Copyright (C) 1998, 1999, 2000, 2002, 2003, 2004, 2007
+   Copyright (C) 1998, 1999, 2000, 2002, 2003, 2004, 2007, 2008
    Free Software Foundation, Inc.
 
    This file is part of GDB.
@@ -30,18 +30,42 @@ struct gdbarch_info;
 /* gdbarch trace variable */
 extern int gdbarch_debug;
 
+/* An implementation of gdbarch_displaced_step_copy_insn for
+   processors that don't need to modify the instruction before
+   single-stepping the displaced copy.
+
+   Simply copy gdbarch_max_insn_length (ARCH) bytes from FROM to TO.
+   The closure is an array of that many bytes containing the
+   instruction's bytes, allocated with xmalloc.  */
+extern struct displaced_step_closure *
+  simple_displaced_step_copy_insn (struct gdbarch *gdbarch,
+                                   CORE_ADDR from, CORE_ADDR to,
+                                   struct regcache *regs);
+
+/* Simple implementation of gdbarch_displaced_step_free_closure: Call
+   xfree.
+   This is appropriate for use with simple_displaced_step_copy_insn.  */
+extern void
+  simple_displaced_step_free_closure (struct gdbarch *gdbarch,
+                                      struct displaced_step_closure *closure);
+
+/* Possible value for gdbarch_displaced_step_location:
+   Place displaced instructions at the program's entry point,
+   leaving space for inferior function call return breakpoints.  */
+extern CORE_ADDR displaced_step_at_entry_point (struct gdbarch *gdbarch);
+
 /* The only possible cases for inner_than. */
 extern int core_addr_lessthan (CORE_ADDR lhs, CORE_ADDR rhs);
 extern int core_addr_greaterthan (CORE_ADDR lhs, CORE_ADDR rhs);
 
 /* Identity functions on a CORE_ADDR.  Just return the "addr".  */
 
-extern CORE_ADDR core_addr_identity (CORE_ADDR addr);
+extern CORE_ADDR core_addr_identity (struct gdbarch *gdbarch, CORE_ADDR addr);
 extern gdbarch_convert_from_func_ptr_addr_ftype convert_from_func_ptr_addr_identity;
 
 /* No-op conversion of reg to regnum. */
 
-extern int no_op_reg_to_regnum (int reg);
+extern int no_op_reg_to_regnum (struct gdbarch *gdbarch, int reg);
 
 /* Do nothing version of elf_make_msymbol_special. */
 
@@ -54,7 +78,7 @@ void default_coff_make_msymbol_special (int val, struct minimal_symbol *msym);
 /* Version of cannot_fetch_register() / cannot_store_register() that
    always fails. */
 
-int cannot_register_not (int regnum);
+int cannot_register_not (struct gdbarch *gdbarch, int regnum);
 
 /* Legacy version of target_virtual_frame_pointer().  Assumes that
    there is an gdbarch_deprecated_fp_regnum and that it is the same, cooked or
@@ -89,7 +113,7 @@ int default_remote_register_number (struct gdbarch *gdbarch,
    (LEGACY_SIM_REGNO_IGNORE) when the register doesn't have a valid
    name.  */
 
-extern int legacy_register_sim_regno (int regnum);
+extern int legacy_register_sim_regno (struct gdbarch *gdbarch, int regnum);
 
 /* Return the selected byte order, or BFD_ENDIAN_UNKNOWN if no byte
    order was explicitly selected.  */