https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113143
--- Comment #12 from Ian Lance Taylor <ian at airs dot com> --- libgo/runtime/runtime.h: #if defined(__x86_64__) && defined(__linux__) && !defined(__CET__) ... #else #define __go_context_t ucontext_t #define __go_getcontext(c) getcontext(c) #define __go_setcontext(c) setcontext(c) #define __go_makecontext(c, fn, sp, size) \ ((c)->uc_stack.ss_sp = sp, (c)->uc_stack.ss_size = size, makecontext(c, fn, 0)) #endif libgo/runtime/proc.c: various calls to __go_getcontext, __go_setcontext, and __go_makecontext.