segv_action        76 maint/gnulib/lib/c-stack.c static _GL_ASYNC_SAFE void (* volatile segv_action) (int);
segv_action        93 maint/gnulib/lib/c-stack.c   segv_action (signo);
segv_action       186 maint/gnulib/lib/c-stack.c   segv_action = action ? action : null_action;