push dummy frame for loading process

This patch pushes dummy frames when loading code for the
profiling purpose.

The following methods push a dummy frame:
* `Kernel#require`
* `Kernel#load`
* `RubyVM::InstructionSequence.compile_file`
* `RubyVM::InstructionSequence.load_from_binary`

https://bugs.ruby-lang.org/issues/18559

1 files changed, 4 insertions, 0 deletions

diff --git a/load.c b/load.c
index 62b9b2d9bd..0e75c1ab83 100644
--- a/load.c
+++ b/load.c
@@ -681,6 +681,8 @@ load_iseq_eval(rb_execution_context_t *ec, VALUE fname)
     const rb_iseq_t *iseq = rb_iseq_load_iseq(fname);
 
     if (!iseq) {
+        rb_execution_context_t *ec = GET_EC();
+        VALUE v = rb_vm_push_frame_fname(ec, fname);
         rb_ast_t *ast;
         VALUE parser = rb_parser_new();
         rb_parser_set_context(parser, NULL, FALSE);
@@ -688,6 +690,8 @@ load_iseq_eval(rb_execution_context_t *ec, VALUE fname)
         iseq = rb_iseq_new_top(&ast->body, rb_fstring_lit("<top (required)>"),
                                fname, rb_realpath_internal(Qnil, fname, 1), NULL);
         rb_ast_dispose(ast);
+        rb_vm_pop_frame(ec);
+        RB_GC_GUARD(v);
     }
     rb_exec_event_hook_script_compiled(ec, iseq, Qnil);
     rb_iseq_eval(iseq);