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-rw-r--r--gdb/tracepoint.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/gdb/tracepoint.c b/gdb/tracepoint.c
index 2a4b245493f..0413903b594 100644
--- a/gdb/tracepoint.c
+++ b/gdb/tracepoint.c
@@ -170,6 +170,11 @@ static int disconnected_tracing;
static int circular_trace_buffer;
+/* This variable is the requested trace buffer size, or -1 to indicate
+ that we don't care and leave it up to the target to set a size. */
+
+static int trace_buffer_size = -1;
+
/* Textual notes applying to the current and/or future trace runs. */
char *trace_user = NULL;
@@ -1819,6 +1824,7 @@ start_tracing (char *notes)
/* Set some mode flags. */
target_set_disconnected_tracing (disconnected_tracing);
target_set_circular_trace_buffer (circular_trace_buffer);
+ target_set_trace_buffer_size (trace_buffer_size);
if (!notes)
notes = trace_notes;
@@ -3217,6 +3223,13 @@ set_circular_trace_buffer (char *args, int from_tty,
}
static void
+set_trace_buffer_size (char *args, int from_tty,
+ struct cmd_list_element *c)
+{
+ target_set_trace_buffer_size (trace_buffer_size);
+}
+
+static void
set_trace_user (char *args, int from_tty,
struct cmd_list_element *c)
{
@@ -5409,6 +5422,16 @@ up and stopping the trace run."),
&setlist,
&showlist);
+ add_setshow_zuinteger_unlimited_cmd ("trace-buffer-size", no_class,
+ &trace_buffer_size, _("\
+Set requested size of trace buffer."), _("\
+Show requested size of trace buffer."), _("\
+Use this to choose a size for the trace buffer. Some targets\n\
+may have fixed or limited buffer sizes. A value of -1 disables\n\
+any attempt to set the buffer size and lets the target choose."),
+ set_trace_buffer_size, NULL,
+ &setlist, &showlist);
+
add_setshow_string_cmd ("trace-user", class_trace,
&trace_user, _("\
Set the user name to use for current and future trace runs"), _("\