Describe tracing build options for developers

hostapd/defconfig

@@ -153,3 +153,13 @@ CONFIG_IPV6=y
 # This can be used to reduce binary size at the cost of disabling a debugging
 # option.
 #CONFIG_NO_DUMP_STATE=y
+
+# Enable tracing code for developer debugging
+# This tracks use of memory allocations and other registrations and reports
+# incorrect use with a backtrace of call (or allocation) location.
+#CONFIG_WPA_TRACE=y
+
+# Use libbfd to get more details for developer debugging
+# This enables use of libbfd to get more detailed symbols for the backtraces
+# generated by CONFIG_WPA_TRACE=y.
+CONFIG_WPA_TRACE_BFD=y

wpa_supplicant/defconfig

@@ -382,3 +382,13 @@ CONFIG_PEERKEY=y
 # Enable mitigation against certain attacks against TKIP by delaying Michael
 # MIC error reports by a random amount of time between 0 and 60 seconds
 #CONFIG_DELAYED_MIC_ERROR_REPORT=y
+
+# Enable tracing code for developer debugging
+# This tracks use of memory allocations and other registrations and reports
+# incorrect use with a backtrace of call (or allocation) location.
+#CONFIG_WPA_TRACE=y
+
+# Use libbfd to get more details for developer debugging
+# This enables use of libbfd to get more detailed symbols for the backtraces
+# generated by CONFIG_WPA_TRACE=y.
+CONFIG_WPA_TRACE_BFD=y