[PATCH 3/8] Pass breakpoint type in set_breakpoint_at

[Yao Qi <qiyaoltc@gmail.com>]

Nowadays, set_breakpoint_at creates breakpoint of type
other_breakpoint, but we also use set_breakpoint_at
in set_reinsert_breakpoint to create breakpoint, so that
we have to overwrite the breakpoint type like this,

  bp = set_breakpoint_at (stop_at, NULL);
  bp->type = reinsert_breakpoint;

which looks not very good.  This patch changes set_breakpoint_at
to receive breakpoint type.  Since set_breakpoint_at is
used in many places, I rename it to set_breakpoint_at_1, and wrap
it with set_breakpoint_at, and pass other_breakpoint.  In this way,
we can call set_breakpoint_at_1 with reinsert_breakpoint in
set_reinsert_breakpoint too, and code looks cleaner.

gdb/gdbserver:

2016-05-20  Yao Qi  <yao.qi@linaro.org>

	* mem-break.c (set_breakpoint_at): Rename it to ...
	(set_breakpoint_at_1): ... it.
	(set_breakpoint_at): Call set_breakpoint_at_1.
	(set_reinsert_breakpoint): Call set_breakpoint_at_1.
	* mem-break.h (set_breakpoint_at): Update comments.
---
 gdb/gdbserver/mem-break.c | 20 ++++++++++++++------
 gdb/gdbserver/mem-break.h |  3 ++-
 2 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/gdb/gdbserver/mem-break.c b/gdb/gdbserver/mem-break.c
index 3313459..3e3be8b 100644
--- a/gdb/gdbserver/mem-break.c
+++ b/gdb/gdbserver/mem-break.c
@@ -785,20 +785,29 @@ set_breakpoint (enum bkpt_type type, enum raw_bkpt_type raw_type,
   return bp;
 }
 
-/* See mem-break.h  */
+/* Set breakpoint of TYPE on address WHERE with handler HANDLER.  */
 
-struct breakpoint *
-set_breakpoint_at (CORE_ADDR where, int (*handler) (CORE_ADDR))
+static struct breakpoint *
+set_breakpoint_at_1 (enum bkpt_type type, CORE_ADDR where,
+		     int (*handler) (CORE_ADDR))
 {
   int err_ignored;
   CORE_ADDR placed_address = where;
   int breakpoint_kind = target_breakpoint_kind_from_pc (&placed_address);
 
-  return set_breakpoint (other_breakpoint, raw_bkpt_type_sw,
+  return set_breakpoint (type, raw_bkpt_type_sw,
 			 placed_address, breakpoint_kind, handler,
 			 &err_ignored);
 }
 
+/* See mem-break.h  */
+
+struct breakpoint *
+set_breakpoint_at (CORE_ADDR where, int (*handler) (CORE_ADDR))
+{
+  return set_breakpoint_at_1 (other_breakpoint, where, handler);
+}
+
 
 static int
 delete_raw_breakpoint (struct process_info *proc, struct raw_breakpoint *todel)
@@ -1411,8 +1420,7 @@ set_reinsert_breakpoint (CORE_ADDR stop_at)
 {
   struct breakpoint *bp;
 
-  bp = set_breakpoint_at (stop_at, NULL);
-  bp->type = reinsert_breakpoint;
+  bp = set_breakpoint_at_1 (reinsert_breakpoint, stop_at, NULL);
 }
 
 void
diff --git a/gdb/gdbserver/mem-break.h b/gdb/gdbserver/mem-break.h
index b84dc1e..f6c9631 100644
--- a/gdb/gdbserver/mem-break.h
+++ b/gdb/gdbserver/mem-break.h
@@ -141,7 +141,8 @@ int gdb_breakpoint_here (CORE_ADDR where);
 
 /* Create a new breakpoint at WHERE, and call HANDLER when
    it is hit.  HANDLER should return 1 if the breakpoint
-   should be deleted, 0 otherwise.  */
+   should be deleted, 0 otherwise.  The type of the created
+   breakpoint is other_breakpoint.  */
 
 struct breakpoint *set_breakpoint_at (CORE_ADDR where,
 				      int (*handler) (CORE_ADDR));
-- 
1.9.1