https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70909
--- Comment #53 from Mark Wielaard <mark at gcc dot gnu.org> --- Author: mark Date: Fri Apr 21 09:02:03 2017 New Revision: 247056 URL: https://gcc.gnu.org/viewcvs?rev=247056&root=gcc&view=rev Log: libiberty: Limit demangler maximum d_print_comp recursion call depth. The fix for PR demangler/70909 and 67264 (endless demangler recursion) catches when a demangle_component is printed in a cycle. But that doesn't protect the call stack blowing up from non-cyclic nested types printed recursively through d_print_comp. This can happen by a (very) long mangled string that simply creates a very deep pointer or qualifier chain. Limit the recursive d_print_comp call depth for a d_print_info to 1K nested types. libiberty/ChangeLog: * cp-demangle.c (MAX_RECURSION_COUNT): New constant. (struct d_print_info): Add recursion field. (d_print_init): Initialize recursion. (d_print_comp): Check and update d_print_info recursion depth. Modified: trunk/libiberty/ChangeLog trunk/libiberty/cp-demangle.c
