I' m trying to make some changes to GCC4.2. I want to obtain some information about callee so i add one statment to function: rtx expand_call (tree exp, rtx target, int ignore) as follows:
2702 /* Generate the actual call instruction. */ 2703 emit_call_1 (funexp, exp, fndecl, funtype, unadjusted_args_size, 2704 adjusted_args_size.constant, struct_value_size, 2705 next_arg_reg, valreg, old_inhibit_defer_pop, call_fusage, 2706 flags, & args_so_far); 2707 tree callee = DECL_SAVED_TREE(fndecl); /* added stamtment by myself */ Then, i get following strange make error message: make[2]: *** [crtend.o] Error 1 ../.././gcc/crtstuff.c: In function ‘__do_global_ctors_aux’: ../.././gcc/crtstuff.c:521: internal compiler error: Segmentation ../.././gcc/crtstuff.c: In function ‘__do_global_dtors_aux’: ../.././gcc/crtstuff.c:287: internal compiler error: Segmentation fault make[2]: *** [crtbegin.o] Error 1 make[2]: Leaving directory `/wxiao3/src/gcc-4.2.0/host-i686-pc-linux-gnu/gcc' make[1]: *** [install-gcc] Error 2 make[1]: Leaving directory `/wxiao3/src/gcc-4.2.0' make: *** [install] Error 2 What's the cause of these errors? I have never touch the files such as crtend.c and crtstuff.c. I only add one statement to calls.c.
