gdb: add some const in gdb/reggroups.c

This commit makes the 'struct reggroup *' argument const for the
following functions:

  reggroup_next
  reggroup_prev
  reggroup_name
  reggroup_type

There are other places that could benefit from const in the
reggroup.{c,h} files, but these will be changing in further commits.

There should be no user visible changes after this commit.

diff --git a/gdb/reggroups.c b/gdb/reggroups.c
index b6afa2f895cbd354f9129b40e7eb25c97d3262cb..169285b7475881888760470b2e63e1600546f311 100644 (file)
--- a/gdb/reggroups.c
+++ b/gdb/reggroups.c
@@ -63,13 +63,13 @@ reggroup_gdbarch_new (struct gdbarch *gdbarch, const char *name,
 /* Register group attributes.  */
 
 const char *
-reggroup_name (struct reggroup *group)
+reggroup_name (const struct reggroup *group)
 {
   return group->name;
 }
 
 enum reggroup_type
-reggroup_type (struct reggroup *group)
+reggroup_type (const struct reggroup *group)
 {
   return group->type;
 }
@@ -130,7 +130,7 @@ static struct reggroups default_groups = { NULL, &default_groups.first };
 /* A register group iterator.  */
 
 struct reggroup *
-reggroup_next (struct gdbarch *gdbarch, struct reggroup *last)
+reggroup_next (struct gdbarch *gdbarch, const struct reggroup *last)
 {
   struct reggroups *groups;
   struct reggroup_el *el;
@@ -161,7 +161,7 @@ reggroup_next (struct gdbarch *gdbarch, struct reggroup *last)
 /* See reggroups.h.  */
 
 struct reggroup *
-reggroup_prev (struct gdbarch *gdbarch, struct reggroup *curr)
+reggroup_prev (struct gdbarch *gdbarch, const struct reggroup *curr)
 {
   struct reggroups *groups;
   struct reggroup_el *el;

diff --git a/gdb/reggroups.h b/gdb/reggroups.h
index f2e60c4f1da5999b0b21ebb226f472143b123a0d..ef99483f39fbdbe1b40b41f257e9e05e3afb83ef 100644 (file)
--- a/gdb/reggroups.h
+++ b/gdb/reggroups.h
@@ -50,17 +50,17 @@ extern struct reggroup *reggroup_gdbarch_new (struct gdbarch *gdbarch,
 extern void reggroup_add (struct gdbarch *gdbarch, struct reggroup *group);
 
 /* Register group attributes.  */
-extern const char *reggroup_name (struct reggroup *reggroup);
-extern enum reggroup_type reggroup_type (struct reggroup *reggroup);
+extern const char *reggroup_name (const struct reggroup *reggroup);
+extern enum reggroup_type reggroup_type (const struct reggroup *reggroup);
 
 /* Iterators for the architecture's register groups.  Pass in NULL, returns
    the first (for next), or last (for prev) group.  Pass in a group,
    returns the next or previous group, or NULL when either the end or the
    beginning of the group list is reached.  */
 extern struct reggroup *reggroup_next (struct gdbarch *gdbarch,
-                                      struct reggroup *last);
+                                      const struct reggroup *last);
 extern struct reggroup *reggroup_prev (struct gdbarch *gdbarch,
-                                      struct reggroup *curr);
+                                      const struct reggroup *curr);
 /* Find a reggroup by name.  */
 extern reggroup *reggroup_find (struct gdbarch *gdbarch, const char *name);