Add heap information to fatal exception & abort dumps

core/include/debug_dumps.h

@@ -10,9 +10,12 @@
 #define _DEBUG_DUMPS_H
 #include <stdint.h>
 
-/* Dump stack memory starting from stack pointer address sp. */
+/* Dump stack memory to stdout, starting from stack pointer address sp. */
 void dump_stack(uint32_t *sp);
 
+/* Dump heap statistics to stdout */
+void dump_heapinfo(void);
+
 /* Called from exception_vectors.S when a fatal exception occurs.
 
    Probably not useful to be called in other contexts.

core/include/xtensa_ops.h

@@ -19,7 +19,7 @@
  * Note that the compiler will push a stack frame (minimum 16 bytes)
  * in the prelude of a C function that calls any other functions.
  */
-#define SP(var) asm volatile ("mov %0, a1" : "=r" (var));
+#define SP(var) asm volatile ("mov %0, a1" : "=r" (var))
 
 /* Read the function return address to a variable.
  *