[RFC v2 34/38] remove exec_set_find_memory_regions

[Tom Tromey <tromey@redhat.com>]

exec_set_find_memory_regions is used to modify the exec target.
However, it only has a single caller, and so it is much clearer to
simply set the appropriate field directly.  It's also better for the
coming multi-target world to avoid this kind of global state change
anyway.

2014-02-06  Tom Tromey  <tromey@redhat.com>

	* gcore.h (objfile_find_memory_regions): Declare.
	* gcore.c (objfile_find_memory_regions): No longer static.  Add
	"self" argument.
	(_initialize_gcore): Don't call exec_set_find_memory_regions.
	* exec.c: Include gcore.h.
	(exec_set_find_memory_regions): Remove.
	(exec_find_memory_regions): Remove.
	(exec_do_find_memory_regions): Remove.
	(init_exec_ops): Update.
	* defs.h (exec_set_find_memory_regions): Remove.
---
 gdb/ChangeLog | 13 +++++++++++++
 gdb/defs.h    |  4 ----
 gdb/exec.c    | 22 ++--------------------
 gdb/gcore.c   |  6 +++---
 gdb/gcore.h   |  3 +++
 5 files changed, 21 insertions(+), 27 deletions(-)

diff --git a/gdb/defs.h b/gdb/defs.h
index d86f4a9..c405cad 100644
--- a/gdb/defs.h
+++ b/gdb/defs.h
@@ -372,10 +372,6 @@ typedef int (*find_memory_region_ftype) (CORE_ADDR addr, unsigned long size,
 					 int read, int write, int exec,
 					 int modified, void *data);
 
-/* Take over the 'find_mapped_memory' vector from exec.c.  */
-extern void exec_set_find_memory_regions
-  (int (*func) (find_memory_region_ftype func, void *data));
-
 /* Possible lvalue types.  Like enum language, this should be in
    value.h, but needs to be here for the same reason.  */
 
diff --git a/gdb/exec.c b/gdb/exec.c
index da0f367..01d79e2 100644
--- a/gdb/exec.c
+++ b/gdb/exec.c
@@ -34,6 +34,7 @@
 #include "gdbthread.h"
 #include "progspace.h"
 #include "gdb_bfd.h"
+#include "gcore.h"
 
 #include <fcntl.h>
 #include "readline/readline.h"
@@ -62,10 +63,6 @@ void _initialize_exec (void);
 
 struct target_ops exec_ops;
 
-/* Function used to implement to_find_memory_regions.  */
-
-static int (*exec_do_find_memory_regions) (find_memory_region_ftype, void *);
-
 /* True if the exec target is pushed on the stack.  */
 static int using_exec_ops;
 
@@ -820,21 +817,6 @@ exec_has_memory (struct target_ops *ops)
 	  != current_target_sections->sections_end);
 }
 
-/* Find mapped memory.  */
-
-extern void
-exec_set_find_memory_regions (int (*func) (find_memory_region_ftype, void *))
-{
-  exec_do_find_memory_regions = func;
-}
-
-static int
-exec_find_memory_regions (struct target_ops *self,
-			  find_memory_region_ftype func, void *data)
-{
-  return exec_do_find_memory_regions (func, data);
-}
-
 static char *exec_make_note_section (struct target_ops *self, bfd *, int *);
 
 /* Fill in the exec file target vector.  Very few entries need to be
@@ -859,7 +841,7 @@ Specify the filename of the executable file.";
   exec_ops.to_stratum = file_stratum;
   exec_ops.to_has_memory = exec_has_memory;
   exec_ops.to_make_corefile_notes = exec_make_note_section;
-  exec_ops.to_find_memory_regions = exec_find_memory_regions;
+  exec_ops.to_find_memory_regions = objfile_find_memory_regions;
   exec_ops.to_magic = OPS_MAGIC;
 }
 
diff --git a/gdb/gcore.c b/gdb/gcore.c
index 67fbf30..b80a97b 100644
--- a/gdb/gcore.c
+++ b/gdb/gcore.c
@@ -471,8 +471,9 @@ gcore_create_callback (CORE_ADDR vaddr, unsigned long size, int read,
   return 0;
 }
 
-static int
-objfile_find_memory_regions (find_memory_region_ftype func, void *obfd)
+int
+objfile_find_memory_regions (struct target_ops *self,
+			     find_memory_region_ftype func, void *obfd)
 {
   /* Use objfile data to create memory sections.  */
   struct objfile *objfile;
@@ -607,5 +608,4 @@ Save a core file with the current state of the debugged process.\n\
 Argument is optional filename.  Default filename is 'core.<process_id>'."));
 
   add_com_alias ("gcore", "generate-core-file", class_files, 1);
-  exec_set_find_memory_regions (objfile_find_memory_regions);
 }
diff --git a/gdb/gcore.h b/gdb/gcore.h
index fa64211..7a6271b 100644
--- a/gdb/gcore.h
+++ b/gdb/gcore.h
@@ -23,5 +23,8 @@
 extern bfd *create_gcore_bfd (const char *filename);
 extern void write_gcore_file (bfd *obfd);
 extern bfd *load_corefile (char *filename, int from_tty);
+extern int objfile_find_memory_regions (struct target_ops *self,
+					find_memory_region_ftype func,
+					void *obfd);
 
 #endif /* GCORE_H */
-- 
1.8.1.4