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vm.c: guard arguments [EXPERIMENTAL]

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* vm.c (invoke_iseq_block_from_c): guard arguments on stack, not
  to be clobbered during splatting.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58012 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2017-03-18 11:29:35 +00:00
parent 655aa318db
commit 7768312c1d
2 changed files with 6 additions and 0 deletions
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2
vm.c
View file

@ -998,12 +998,14 @@ invoke_iseq_block_from_c(rb_thread_t *th, const struct rb_captured_block *captur
th->passed_bmethod_me = NULL;
CHECK_VM_STACK_OVERFLOW(cfp, argc);
cfp->sp = sp + i;
for (i=0; i<argc; i++) {
sp[i] = argv[i];
}
opt_pc = vm_yield_setup_args(th, iseq, argc, sp, passed_block_handler,
(type == VM_FRAME_MAGIC_LAMBDA ? (splattable ? arg_setup_lambda : arg_setup_method) : arg_setup_block));
cfp->sp = sp;
if (me == NULL) {
return invoke_block(th, iseq, self, captured, cref, type, opt_pc);

4
vm_insnhelper.c
View file

@ -2506,7 +2506,11 @@ vm_callee_setup_block_arg_arg0_check(VALUE *argv)
{
VALUE ary, arg0 = argv[0];
ary = rb_check_array_type(arg0);
#if 0
argv[0] = arg0;
#else
VM_ASSERT(argv[0] == arg0);
#endif
return ary;
}