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[PATCH 2/5] Extended-remote exec catchpoints
- From: Don Breazeal <donb at codesourcery dot com>
- To: <gdb-patches at sourceware dot org>, <palves at redhat dot com>
- Date: Wed, 15 Jul 2015 14:49:36 -0700
- Subject: [PATCH 2/5] Extended-remote exec catchpoints
- Authentication-results: sourceware.org; auth=none
- References: <1436996979-32350-1-git-send-email-donb at codesourcery dot com>
This patch implements exec catchpoints for extended-remote Linux
targets. The implementation follows the same approach used for
fork catchpoints, implementing extended-remote target routines for
inserting and removing the catchpoints by just checking if exec events
are supported. Existing host-side code and previous support for
extended-remote exec events takes care of the rest.
Tested on x86_64 GNU/Linux with native, native-gdbserver, and
native-extended-gdbserver targets.
Thanks
--Don
2015-07-15 Don Breazeal <donb@codesourcery.com>
* gdb/remote.c (remote_exec_event_p): New function.
(remote_insert_exec_catchpoint): New function.
(remote_remove_exec_catchpoint): New function.
(init_extended_remote_ops): Initialize extended_remote_ops
members to_insert_exec_catchpoint and
to_remove_exec_catchpoint.
---
gdb/remote.c | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/gdb/remote.c b/gdb/remote.c
index c0b3423..153b183 100644
--- a/gdb/remote.c
+++ b/gdb/remote.c
@@ -1499,6 +1499,14 @@ remote_vfork_event_p (struct remote_state *rs)
return packet_support (PACKET_vfork_event_feature) == PACKET_ENABLE;
}
+/* Returns true if exec events are supported. */
+
+static int
+remote_exec_event_p (struct remote_state *rs)
+{
+ return packet_support (PACKET_exec_event_feature) == PACKET_ENABLE;
+}
+
/* Insert fork catchpoint target routine. If fork events are enabled
then return success, nothing more to do. */
@@ -1539,6 +1547,26 @@ remote_remove_vfork_catchpoint (struct target_ops *ops, int pid)
return 0;
}
+/* Insert exec catchpoint target routine. If exec events are
+ enabled, just return success. */
+
+static int
+remote_insert_exec_catchpoint (struct target_ops *ops, int pid)
+{
+ struct remote_state *rs = get_remote_state ();
+
+ return !remote_exec_event_p (rs);
+}
+
+/* Remove exec catchpoint target routine. Nothing to do, just
+ return success. */
+
+static int
+remote_remove_exec_catchpoint (struct target_ops *ops, int pid)
+{
+ return 0;
+}
+
/* Tokens for use by the asynchronous signal handlers for SIGINT. */
static struct async_signal_handler *async_sigint_remote_twice_token;
static struct async_signal_handler *async_sigint_remote_token;
@@ -12388,6 +12416,10 @@ Specify the serial device it is connected to (e.g. /dev/ttya).";
= remote_insert_vfork_catchpoint;
extended_remote_ops.to_remove_vfork_catchpoint
= remote_remove_vfork_catchpoint;
+ extended_remote_ops.to_insert_exec_catchpoint
+ = remote_insert_exec_catchpoint;
+ extended_remote_ops.to_remove_exec_catchpoint
+ = remote_remove_exec_catchpoint;
}
static int
--
1.8.1.1