1 files changed, 69 insertions, 0 deletions

diff --git a/gdb/remote.c b/gdb/remote.c
index 01e3f306c93..1c9367d2b0f 100644
--- a/gdb/remote.c
+++ b/gdb/remote.c
@@ -242,6 +242,8 @@ static void remote_console_output (char *msg);
 
 static int remote_supports_cond_breakpoints (void);
 
+static int remote_can_run_breakpoint_commands (void);
+
 /* The non-stop remote protocol provisions for one pending stop reply.
    This is where we keep it until it is acknowledged.  */
 
@@ -323,6 +325,10 @@ struct remote_state
      conditions.  */
   int cond_breakpoints;
 
+  /* True if the stub reports support for target-side breakpoint
+     commands.  */
+  int breakpoint_commands;
+
   /* True if the stub reports support for fast tracepoints.  */
   int fast_tracepoints;
 
@@ -1274,6 +1280,7 @@ enum {
   PACKET_qAttached,
   PACKET_ConditionalTracepoints,
   PACKET_ConditionalBreakpoints,
+  PACKET_BreakpointCommands,
   PACKET_FastTracepoints,
   PACKET_StaticTracepoints,
   PACKET_InstallInTrace,
@@ -3801,6 +3808,16 @@ remote_cond_breakpoint_feature (const struct protocol_feature *feature,
 }
 
 static void
+remote_breakpoint_commands_feature (const struct protocol_feature *feature,
+				    enum packet_support support,
+				    const char *value)
+{
+  struct remote_state *rs = get_remote_state ();
+
+  rs->breakpoint_commands = (support == PACKET_ENABLE);
+}
+
+static void
 remote_fast_tracepoint_feature (const struct protocol_feature *feature,
 				enum packet_support support,
 				const char *value)
@@ -3898,6 +3915,8 @@ static struct protocol_feature remote_protocol_features[] = {
     PACKET_ConditionalTracepoints },
   { "ConditionalBreakpoints", PACKET_DISABLE, remote_cond_breakpoint_feature,
     PACKET_ConditionalBreakpoints },
+  { "BreakpointCommands", PACKET_DISABLE, remote_breakpoint_commands_feature,
+    PACKET_BreakpointCommands },
   { "FastTracepoints", PACKET_DISABLE, remote_fast_tracepoint_feature,
     PACKET_FastTracepoints },
   { "StaticTracepoints", PACKET_DISABLE, remote_static_tracepoint_feature,
@@ -7873,6 +7892,37 @@ remote_add_target_side_condition (struct gdbarch *gdbarch,
   return 0;
 }
 
+static void
+remote_add_target_side_commands (struct gdbarch *gdbarch,
+				 struct bp_target_info *bp_tgt, char *buf)
+{
+  struct agent_expr *aexpr = NULL;
+  int i, ix;
+
+  if (VEC_empty (agent_expr_p, bp_tgt->tcommands))
+    return;
+
+  buf += strlen (buf);
+
+  sprintf (buf, ";cmds:%x,", bp_tgt->persist);
+  buf += strlen (buf);
+
+  /* Concatenate all the agent expressions that are commands into the
+     cmds parameter.  */
+  for (ix = 0;
+       VEC_iterate (agent_expr_p, bp_tgt->tcommands, ix, aexpr);
+       ix++)
+    {
+      sprintf (buf, "X%x,", aexpr->len);
+      buf += strlen (buf);
+      for (i = 0; i < aexpr->len; ++i)
+	buf = pack_hex_byte (buf, aexpr->buf[i]);
+      *buf = '\0';
+    }
+
+  VEC_free (agent_expr_p, bp_tgt->tcommands);
+}
+
 /* Insert a breakpoint.  On targets that have software breakpoint
    support, we ask the remote target to do the work; on targets
    which don't, we insert a traditional memory breakpoint.  */
@@ -7910,6 +7960,9 @@ remote_insert_breakpoint (struct gdbarch *gdbarch,
       if (remote_supports_cond_breakpoints ())
 	remote_add_target_side_condition (gdbarch, bp_tgt, p, endbuf);
 
+      if (remote_can_run_breakpoint_commands ())
+	remote_add_target_side_commands (gdbarch, bp_tgt, p);
+
       putpkt (rs->buf);
       getpkt (&rs->buf, &rs->buf_size, 0);
 
@@ -8151,6 +8204,9 @@ remote_insert_hw_breakpoint (struct gdbarch *gdbarch,
   if (remote_supports_cond_breakpoints ())
     remote_add_target_side_condition (gdbarch, bp_tgt, p, endbuf);
 
+  if (remote_can_run_breakpoint_commands ())
+    remote_add_target_side_commands (gdbarch, bp_tgt, p);
+
   putpkt (rs->buf);
   getpkt (&rs->buf, &rs->buf_size, 0);
 
@@ -10089,6 +10145,14 @@ remote_supports_string_tracing (void)
   return rs->string_tracing;
 }
 
+static int
+remote_can_run_breakpoint_commands (void)
+{
+  struct remote_state *rs = get_remote_state ();
+
+  return rs->breakpoint_commands;
+}
+
 static void
 remote_trace_init (void)
 {
@@ -11007,6 +11071,7 @@ Specify the serial device it is connected to\n\
   remote_ops.to_supports_enable_disable_tracepoint = remote_supports_enable_disable_tracepoint;
   remote_ops.to_supports_string_tracing = remote_supports_string_tracing;
   remote_ops.to_supports_evaluation_of_breakpoint_conditions = remote_supports_cond_breakpoints;
+  remote_ops.to_can_run_breakpoint_commands = remote_can_run_breakpoint_commands;
   remote_ops.to_trace_init = remote_trace_init;
   remote_ops.to_download_tracepoint = remote_download_tracepoint;
   remote_ops.to_can_download_tracepoint = remote_can_download_tracepoint;
@@ -11537,6 +11602,10 @@ Show the maximum size of the address (in bits) in a memory packet."), NULL,
 			 "ConditionalBreakpoints",
 			 "conditional-breakpoints", 0);
 
+  add_packet_config_cmd (&remote_protocol_packets[PACKET_BreakpointCommands],
+			 "BreakpointCommands",
+			 "breakpoint-commands", 0);
+
   add_packet_config_cmd (&remote_protocol_packets[PACKET_FastTracepoints],
 			 "FastTracepoints", "fast-tracepoints", 0);