gdb: add target_ops::supports_displaced_step

[deliverable/binutils-gdb.git] / gdb / annotate.h

diff --git a/gdb/annotate.h b/gdb/annotate.h
index 66aface02091d15b8e60f054ec0969d0d09529eb..70c2f280507b2aea59bd6e75610ec83ba830d19c 100644 (file)
--- a/gdb/annotate.h
+++ b/gdb/annotate.h
@@ -1,5 +1,5 @@
 /* Annotation routines for GDB.
-   Copyright (C) 1986-2015 Free Software Foundation, Inc.
+   Copyright (C) 1986-2020 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -16,6 +16,9 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
+#ifndef ANNOTATE_H
+#define ANNOTATE_H
+
 #include "symtab.h"
 #include "gdbtypes.h"
 
@@ -74,8 +77,36 @@ extern void annotate_arg_name_end (void);
 extern void annotate_arg_value (struct type *);
 extern void annotate_arg_end (void);
 
-extern void annotate_source (char *, int, int, int,
-                            struct gdbarch *, CORE_ADDR);
+/* Wrap calls to annotate_arg_begin and annotate_arg_end in an RAII
+   class. */
+struct annotate_arg_emitter
+{
+  annotate_arg_emitter () { annotate_arg_begin (); }
+  ~annotate_arg_emitter () { annotate_arg_end (); }
+
+  DISABLE_COPY_AND_ASSIGN (annotate_arg_emitter);
+};
+
+/* If annotations are turned on then print annotation describing the full
+   name of the source file S and the line number LINE and its corresponding
+   character position.
+
+   MID_STATEMENT is nonzero if the PC is not at the beginning of that
+   line.
+
+   The current symtab and line is updated to reflect S and LINE.
+
+   Return true if the annotation was printed and the current symtab and
+   line were updated, otherwise return false, which can happen if the
+   source file for S can't be found, or LINE is out of range.
+
+   This does leave GDB in the weird situation where, even when annotations
+   are on, we only sometimes print the annotation, and only sometimes
+   update the current symtab and line.  However, this particular annotation
+   has behaved this way for some time, and front ends that still use
+   annotations now depend on this behaviour.  */
+extern bool annotate_source_line (struct symtab *s, int line,
+                                 int mid_statement, CORE_ADDR pc);
 
 extern void annotate_frame_begin (int, struct gdbarch *, CORE_ADDR);
 extern void annotate_function_call (void);
@@ -100,3 +131,5 @@ extern void annotate_array_section_end (void);
 
 extern void (*deprecated_annotate_signalled_hook) (void);
 extern void (*deprecated_annotate_signal_hook) (void);
+
+#endif /* ANNOTATE_H */