Added script to decode exception backtraces

backtrace.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+
+GDB_BINARY=~/.platformio/packages/toolchain-xtensa32/bin/xtensa-esp32-elf-gdb
+ELF_FILE=.pio/build/feedc0de_usb/firmware.elf
+
+if [[ ! -x "$GDB_BINARY" ]]
+then
+    echo Could not find gdb binary: "$GDB_BINARY"
+    exit 1
+fi
+
+if [[ ! -f "$ELF_FILE" ]]
+then
+    echo Could not find elf file: "$ELF_FILE"
+    exit 1
+fi
+
+ls -lah "$ELF_FILE"
+
+PARAMS=()
+for i in $@
+do
+	ADDR="$(echo "$i" | cut -d ":" -f 1)"
+	OUTPUT="$($GDB_BINARY --batch $ELF_FILE -ex "set listsize 1" -ex "l *$ADDR" -ex "q")"
+
+        if [[ -z "$OUTPUT" ]]
+        then
+            echo "${ADDR} gdb empty output"
+        else
+            echo "${OUTPUT}"
+        fi
+done