[PATCH v4 03/11] compile: Distribute scope, add scope_data

[Jan Kratochvil <jan.kratochvil@redhat.com>]

Provide a way to access current 'scope' during the do_module_cleanup stage and
associate more data with it.

It should be all sub-classed but AFAIK GDB does not require C++ compiler yet.

gdb/ChangeLog
2015-04-06  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* cli/cli-script.c (execute_control_command): Update
	eval_compile_command caller.
	* compile/compile-object-load.c (compile_object_load): Add parameters
	scope and scope_data.  Set them.
	* compile/compile-object-load.h (struct compile_module): Add fields
	scope and scope_data.
	(compile_object_load): Add parameters scope and scope_data.
	* compile/compile-object-run.c (struct do_module_cleanup): Add fields
	scope and scope_data.
	(compile_object_run): Propagate the fields scope and scope_data.
	* compile/compile.c (compile_file_command, compile_code_command):
	Update eval_compile_command callers.
	(eval_compile_command): Add parameter scope_data.  Pass it plus scope.
	* compile/compile.h (eval_compile_command): Add parameter scope_data.
	* defs.h (struct command_line): Add field scope_data.
---
 gdb/cli/cli-script.c              |    3 ++-
 gdb/compile/compile-object-load.c |    5 ++++-
 gdb/compile/compile-object-load.h |   11 +++++++++--
 gdb/compile/compile-object-run.c  |    6 ++++++
 gdb/compile/compile.c             |    9 +++++----
 gdb/compile/compile.h             |    3 ++-
 gdb/defs.h                        |    1 +
 7 files changed, 29 insertions(+), 9 deletions(-)

diff --git a/gdb/cli/cli-script.c b/gdb/cli/cli-script.c
index 7a4ed78..4bd18a7 100644
--- a/gdb/cli/cli-script.c
+++ b/gdb/cli/cli-script.c
@@ -615,7 +615,8 @@ execute_control_command (struct command_line *cmd)
       }
 
     case compile_control:
-      eval_compile_command (cmd, NULL, cmd->control_u.compile.scope);
+      eval_compile_command (cmd, NULL, cmd->control_u.compile.scope,
+			    cmd->control_u.compile.scope_data);
       ret = simple_control;
       break;
 
diff --git a/gdb/compile/compile-object-load.c b/gdb/compile/compile-object-load.c
index 7d795cf..dbd5ec0 100644
--- a/gdb/compile/compile-object-load.c
+++ b/gdb/compile/compile-object-load.c
@@ -464,7 +464,8 @@ store_regs (struct type *regs_type, CORE_ADDR regs_base)
    function returns.  */
 
 struct compile_module *
-compile_object_load (const char *object_file, const char *source_file)
+compile_object_load (const char *object_file, const char *source_file,
+		     enum compile_i_scope_types scope, void *scope_data)
 {
   struct cleanup *cleanups, *cleanups_free_objfile;
   bfd *abfd;
@@ -593,5 +594,7 @@ compile_object_load (const char *object_file, const char *source_file)
   retval->source_file = xstrdup (source_file);
   retval->func_addr = func_addr;
   retval->regs_addr = regs_addr;
+  retval->scope = scope;
+  retval->scope_data = scope_data;
   return retval;
 }
diff --git a/gdb/compile/compile-object-load.h b/gdb/compile/compile-object-load.h
index bef575e..311fb09 100644
--- a/gdb/compile/compile-object-load.h
+++ b/gdb/compile/compile-object-load.h
@@ -31,9 +31,16 @@ struct compile_module
   /* Inferior registers address or NULL if the inferior function does not
      require any.  */
   CORE_ADDR regs_addr;
+
+  /* The "scope" of this compilation.  */
+  enum compile_i_scope_types scope;
+
+  /* User data for SCOPE in use.  */
+  void *scope_data;
 };
 
-extern struct compile_module *compile_object_load (const char *object_file,
-						   const char *source_file);
+extern struct compile_module *compile_object_load
+  (const char *object_file, const char *source_file,
+   enum compile_i_scope_types scope, void *scope_data);
 
 #endif /* GDB_COMPILE_OBJECT_LOAD_H */
diff --git a/gdb/compile/compile-object-run.c b/gdb/compile/compile-object-run.c
index 6738aad..bfd2473 100644
--- a/gdb/compile/compile-object-run.c
+++ b/gdb/compile/compile-object-run.c
@@ -36,6 +36,10 @@ struct do_module_cleanup
   /* .c file OBJFILE was built from.  It needs to be xfree-d.  */
   char *source_file;
 
+  /* Copy from struct compile_module.  */
+  enum compile_i_scope_types scope;
+  void *scope_data;
+
   /* objfile_name of our objfile.  */
   char objfile_name_string[1];
 };
@@ -96,6 +100,8 @@ compile_object_run (struct compile_module *module)
   data->executedp = &executed;
   data->source_file = xstrdup (module->source_file);
   strcpy (data->objfile_name_string, objfile_name_s);
+  data->scope = module->scope;
+  data->scope_data = module->scope_data;
 
   xfree (module->source_file);
   xfree (module);
diff --git a/gdb/compile/compile.c b/gdb/compile/compile.c
index 90cfc36..3cbbc29 100644
--- a/gdb/compile/compile.c
+++ b/gdb/compile/compile.c
@@ -117,7 +117,7 @@ compile_file_command (char *arg, int from_tty)
   make_cleanup (xfree, arg);
   buffer = xstrprintf ("#include \"%s\"\n", arg);
   make_cleanup (xfree, buffer);
-  eval_compile_command (NULL, buffer, scope);
+  eval_compile_command (NULL, buffer, scope, NULL);
   do_cleanups (cleanup);
 }
 
@@ -150,7 +150,7 @@ compile_code_command (char *arg, int from_tty)
     }
 
   if (arg && *arg)
-      eval_compile_command (NULL, arg, scope);
+    eval_compile_command (NULL, arg, scope, NULL);
   else
     {
       struct command_line *l = get_command_line (compile_control, "");
@@ -557,7 +557,7 @@ compile_command (char *args, int from_tty)
 
 void
 eval_compile_command (struct command_line *cmd, char *cmd_string,
-		      enum compile_i_scope_types scope)
+		      enum compile_i_scope_types scope, void *scope_data)
 {
   char *object_file, *source_file;
 
@@ -571,7 +571,8 @@ eval_compile_command (struct command_line *cmd, char *cmd_string,
       make_cleanup (xfree, source_file);
       cleanup_unlink = make_cleanup (cleanup_unlink_file, object_file);
       make_cleanup (cleanup_unlink_file, source_file);
-      compile_module = compile_object_load (object_file, source_file);
+      compile_module = compile_object_load (object_file, source_file,
+					    scope, scope_data);
       discard_cleanups (cleanup_unlink);
       do_cleanups (cleanup_xfree);
       compile_object_run (compile_module);
diff --git a/gdb/compile/compile.h b/gdb/compile/compile.h
index 1e3f934..93c4786 100644
--- a/gdb/compile/compile.h
+++ b/gdb/compile/compile.h
@@ -29,7 +29,8 @@ struct dynamic_prop;
    never both.  */
 
 extern void eval_compile_command (struct command_line *cmd, char *cmd_string,
-				  enum compile_i_scope_types scope);
+				  enum compile_i_scope_types scope,
+				  void *scope_data);
 
 /* Compile a DWARF location expression to C, suitable for use by the
    compiler.
diff --git a/gdb/defs.h b/gdb/defs.h
index eda6741..436f09e 100644
--- a/gdb/defs.h
+++ b/gdb/defs.h
@@ -397,6 +397,7 @@ struct command_line
 	struct
 	  {
 	    enum compile_i_scope_types scope;
+	    void *scope_data;
 	  }
 	compile;
       }