[PATCH 1/6] Introduce target-section.h

[Tom Tromey <tom@tromey.com>]

This introduces a new target-section.h file.  This makes some of the
later patches in this series a bit cleaner, because new includes of
target.h won't be required.  Also I think it's better to have small
header files for each separate data structure.

gdb/ChangeLog
2020-10-03  Tom Tromey  <tom@tromey.com>

	* target.h (struct target_section, struct target_section_table):
	Move to target-section.h.
	* target-section.h: New file.
---
 gdb/ChangeLog        |  6 ++++++
 gdb/target-section.h | 50 ++++++++++++++++++++++++++++++++++++++++++++
 gdb/target.h         | 28 +------------------------
 3 files changed, 57 insertions(+), 27 deletions(-)
 create mode 100644 gdb/target-section.h

diff --git a/gdb/target-section.h b/gdb/target-section.h
new file mode 100644
index 00000000000..581bc1dbe9f
--- /dev/null
+++ b/gdb/target-section.h
@@ -0,0 +1,50 @@
+/* Target sections.
+
+   Copyright (C) 2020 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   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 GDB_TARGET_SECTION_H
+#define GDB_TARGET_SECTION_H
+
+/* Struct target_section maps address ranges to file sections.  It is
+   mostly used with BFD files, but can be used without (e.g. for handling
+   raw disks, or files not in formats handled by BFD).  */
+
+struct target_section
+  {
+    CORE_ADDR addr;		/* Lowest address in section */
+    CORE_ADDR endaddr;		/* 1+highest address in section */
+
+    struct bfd_section *the_bfd_section;
+
+    /* The "owner" of the section.
+       It can be any unique value.  It is set by add_target_sections
+       and used by remove_target_sections.
+       For example, for executables it is a pointer to exec_bfd and
+       for shlibs it is the so_list pointer.  */
+    void *owner;
+  };
+
+/* Holds an array of target sections.  Defined by [SECTIONS..SECTIONS_END[.  */
+
+struct target_section_table
+{
+  struct target_section *sections;
+  struct target_section *sections_end;
+};
+
+#endif /* GDB_TARGET_SECTION_H */
diff --git a/gdb/target.h b/gdb/target.h
index 695f1b2b7f6..369394aa929 100644
--- a/gdb/target.h
+++ b/gdb/target.h
@@ -44,6 +44,7 @@ struct inferior;
 #include "breakpoint.h" /* For enum bptype.  */
 #include "gdbsupport/scoped_restore.h"
 #include "gdbsupport/refcounted-object.h"
+#include "target-section.h"
 
 /* This include file defines the interface between the main part
    of the debugger, and the part which is target-specific, or
@@ -2413,33 +2414,6 @@ extern bool target_is_pushed (target_ops *t);
 extern CORE_ADDR target_translate_tls_address (struct objfile *objfile,
 					       CORE_ADDR offset);
 
-/* Struct target_section maps address ranges to file sections.  It is
-   mostly used with BFD files, but can be used without (e.g. for handling
-   raw disks, or files not in formats handled by BFD).  */
-
-struct target_section
-  {
-    CORE_ADDR addr;		/* Lowest address in section */
-    CORE_ADDR endaddr;		/* 1+highest address in section */
-
-    struct bfd_section *the_bfd_section;
-
-    /* The "owner" of the section.
-       It can be any unique value.  It is set by add_target_sections
-       and used by remove_target_sections.
-       For example, for executables it is a pointer to exec_bfd and
-       for shlibs it is the so_list pointer.  */
-    void *owner;
-  };
-
-/* Holds an array of target sections.  Defined by [SECTIONS..SECTIONS_END[.  */
-
-struct target_section_table
-{
-  struct target_section *sections;
-  struct target_section *sections_end;
-};
-
 /* Return the "section" containing the specified address.  */
 struct target_section *target_section_by_addr (struct target_ops *target,
 					       CORE_ADDR addr);
-- 
2.17.2