gdb: add target_ops::supports_displaced_step

[deliverable/binutils-gdb.git] / gdb / macroexp.c

diff --git a/gdb/macroexp.c b/gdb/macroexp.c
index 1fa37d2875b8467925c5c3f654be372c2b5b5711..9015bc1c9d404fdb5e33b798c54140ef1a6377e7 100644 (file)
--- a/gdb/macroexp.c
+++ b/gdb/macroexp.c
@@ -1,5 +1,5 @@
 /* C preprocessor macro expansion for GDB.
-   Copyright (C) 2002-2018 Free Software Foundation, Inc.
+   Copyright (C) 2002-2020 Free Software Foundation, Inc.
    Contributed by Red Hat, Inc.
 
    This file is part of GDB.
@@ -19,7 +19,6 @@
 
 #include "defs.h"
 #include "gdb_obstack.h"
-#include "bcache.h"
 #include "macrotab.h"
 #include "macroexp.h"
 #include "c-lang.h"
@@ -112,6 +111,16 @@ struct macro_buffer
     shared = true;
   }
 
+  macro_buffer& operator= (const macro_buffer &src)
+  {
+    gdb_assert (src.shared);
+    gdb_assert (shared);
+    set_shared (src.text, src.len);
+    last_token = src.last_token;
+    is_identifier = src.is_identifier;
+    return *this;
+  }
+
   ~macro_buffer ()
   {
     if (! shared && size)
@@ -120,7 +129,7 @@ struct macro_buffer
 
   /* Release the text of the buffer to the caller, which is now
      responsible for freeing it.  */
-  char *release ()
+  ATTRIBUTE_UNUSED_RESULT char *release ()
   {
     gdb_assert (! shared);
     gdb_assert (size);
@@ -1324,7 +1333,7 @@ expand (const char *id,
 
 
 /* If the single token in SRC_FIRST followed by the tokens in SRC_REST
-   constitute a macro invokation not forbidden in NO_LOOP, append its
+   constitute a macro invocation not forbidden in NO_LOOP, append its
    expansion to DEST and return non-zero.  Otherwise, return zero, and
    leave DEST unchanged.