Expose ec -> backtrace (internal) and use it to implement fiber backtrace.

See <https://bugs.ruby-lang.org/issues/16815> for more details.

1 files changed, 2 insertions, 0 deletions

diff --git a/internal/vm.h b/internal/vm.h
index 657202ba7f..1ae2ba064a 100644
--- a/internal/vm.h
+++ b/internal/vm.h
@@ -107,6 +107,8 @@ void rb_print_backtrace(void);
 /* vm_backtrace.c */
 VALUE rb_vm_thread_backtrace(int argc, const VALUE *argv, VALUE thval);
 VALUE rb_vm_thread_backtrace_locations(int argc, const VALUE *argv, VALUE thval);
+VALUE rb_vm_backtrace(int argc, const VALUE * argv, struct rb_execution_context_struct * ec);
+VALUE rb_vm_backtrace_locations(int argc, const VALUE * argv, struct rb_execution_context_struct * ec);
 VALUE rb_make_backtrace(void);
 void rb_backtrace_print_as_bugreport(void);
 int rb_backtrace_p(VALUE obj);