+ .long SIMPLE_FUN_HEADER_WIDETAG /* header */
+ .long CSYMBOL(undefined_tramp) - SIMPLE_FUN_CODE_OFFSET /* self */
+ .long NIL /* next */
+ .long NIL /* name */
+ .long NIL /* arglist */
+ .long NIL /* type */
+ .long NIL /* xref */
+CSYMBOL(undefined_tramp):
+ /* Point reg_CODE to the header and tag it as function, since
+ the debugger regards a function pointer in reg_CODE which
+ doesn't point to a code object as undefined function. */
+ bcl 20,31,.+4 /* get address of the next instruction */
+ mflr reg_CODE /* header 1 extra word back from here */
+ addi reg_CODE,reg_CODE,-(SIMPLE_FUN_CODE_OFFSET+4)
+