returned. */
extern void dwarf2_where (struct dwarf2_line_info *l);
+/* A hook to allow the target backend to inform the line number state
+ machine of isa changes when assembler debug info is enabled. */
+extern void dwarf2_set_isa (unsigned int isa);
+
/* This function generates .debug_line info based on the address and
source information passed in the arguments. ADDR should be the
frag-relative offset of the instruction the information is for and