"Requested size of trace buffer is $BUFFER_SIZE.*" \
"show trace buffer size"
+# -1 means "no limit on GDB's end. Let the target choose."
gdb_test_no_output \
"set trace-buffer-size -1" \
"set trace buffer size 2"
+# "unlimited" means the same.
+gdb_test_no_output "set trace-buffer-size unlimited"
+
# Test that tstatus gives us default buffer size now.
gdb_test "tstatus" \
".*Trace buffer has $decimal bytes of $default_size bytes free.*" \