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make Binding object WB protected.

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* proc.c (ruby_binding_data_type): set RUBY_TYPED_WB_PROTECTED.
  Insert write barriers (WBs) to all of writes.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58988 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
ko1 2017-06-01 15:12:14 +00:00
parent b9f5cab23a
commit 9301ef5d0e
4 changed files with 58 additions and 45 deletions
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25
proc.c
View file

@ -266,9 +266,7 @@ static void
binding_free(void *ptr)
{
RUBY_FREE_ENTER("binding");
ruby_xfree(ptr);
RUBY_FREE_LEAVE("binding");
}
@ -276,6 +274,7 @@ static void
binding_mark(void *ptr)
{
rb_binding_t *bind = ptr;
RUBY_MARK_ENTER("binding");
block_mark(&bind->block);
rb_gc_mark(bind->pathobj);
@ -295,7 +294,7 @@ const rb_data_type_t ruby_binding_data_type = {
binding_free,
binding_memsize,
},
0, 0, RUBY_TYPED_FREE_IMMEDIATELY
0, 0, RUBY_TYPED_WB_PROTECTED | RUBY_TYPED_FREE_IMMEDIATELY
};
VALUE
@ -307,6 +306,7 @@ rb_binding_alloc(VALUE klass)
return obj;
}
/* :nodoc: */
static VALUE
binding_dup(VALUE self)
@ -315,8 +315,8 @@ binding_dup(VALUE self)
rb_binding_t *src, *dst;
GetBindingPtr(self, src);
GetBindingPtr(bindval, dst);
dst->block = src->block;
dst->pathobj = src->pathobj;
rb_vm_block_copy(bindval, &dst->block, &src->block);
RB_OBJ_WRITE(bindval, &dst->pathobj, src->pathobj);
dst->first_lineno = src->first_lineno;
return bindval;
}
@ -542,7 +542,7 @@ bind_local_variable_set(VALUE bindval, VALUE sym, VALUE val)
env = VM_ENV_ENVVAL_PTR(vm_block_ep(&bind->block));
if ((ptr = get_local_variable_ptr(env, lid)) == NULL) {
/* not found. create new env */
ptr = rb_binding_add_dynavars(bind, 1, &lid);
ptr = rb_binding_add_dynavars(bindval, bind, 1, &lid);
env = VM_ENV_ENVVAL_PTR(vm_block_ep(&bind->block));
}
@ -2766,18 +2766,19 @@ proc_binding(VALUE self)
bindval = rb_binding_alloc(rb_cBinding);
GetBindingPtr(bindval, bind);
bind->block.as.captured.self = binding_self;
bind->block.as.captured.code.iseq = env->iseq;
bind->block.as.captured.ep = env->ep;
RB_OBJ_WRITE(bindval, &bind->block.as.captured.self, binding_self);
RB_OBJ_WRITE(bindval, &bind->block.as.captured.code.iseq, env->iseq);
rb_vm_block_ep_update(bindval, &bind->block, env->ep);
RB_OBJ_WRITTEN(bindval, Qundef, VM_ENV_ENVVAL(env->ep));
if (iseq) {
rb_iseq_check(iseq);
bind->pathobj = iseq->body->location.pathobj;
RB_OBJ_WRITE(bindval, &bind->pathobj, iseq->body->location.pathobj);
bind->first_lineno = FIX2INT(rb_iseq_first_lineno(iseq));
}
else {
bind->pathobj = rb_iseq_pathobj_new(rb_fstring_cstr("(binding)"), Qnil);
RB_OBJ_WRITE(bindval, &bind->pathobj,
rb_iseq_pathobj_new(rb_fstring_cstr("(binding)"), Qnil));
bind->first_lineno = 1;
}

68
vm.c
View file

@ -262,12 +262,19 @@ vm_cref_dump(const char *mesg, const rb_cref_t *cref)
}
}
void
rb_vm_block_ep_update(VALUE obj, const struct rb_block *dst, const VALUE *ep)
{
*((const VALUE **)&dst->as.captured.ep) = ep;
RB_OBJ_WRITTEN(obj, Qundef, VM_ENV_ENVVAL(ep));
}
static void
vm_bind_update_env(rb_binding_t *bind, VALUE envval)
vm_bind_update_env(VALUE bindval, rb_binding_t *bind, VALUE envval)
{
const rb_env_t *env = (rb_env_t *)envval;
bind->block.as.captured.code.iseq = env->iseq;
bind->block.as.captured.ep = env->ep;
RB_OBJ_WRITE(bindval, &bind->block.as.captured.code.iseq, env->iseq);
rb_vm_block_ep_update(bindval, &bind->block, env->ep);
}
#if VM_COLLECT_USAGE_DETAILS
@ -467,7 +474,7 @@ vm_set_main_stack(rb_thread_t *th, const rb_iseq_t *iseq)
/* save binding */
if (iseq->body->local_table_size > 0) {
vm_bind_update_env(bind, vm_make_env_object(th, th->ec.cfp));
vm_bind_update_env(toplevel_binding, bind, vm_make_env_object(th, th->ec.cfp));
}
}
@ -806,8 +813,7 @@ rb_proc_create_from_captured(VALUE klass,
/* copy block */
RB_OBJ_WRITE(procval, &proc->block.as.captured.self, captured->self);
RB_OBJ_WRITE(procval, &proc->block.as.captured.code.val, captured->code.val);
*((const VALUE **)&proc->block.as.captured.ep) = captured->ep;
RB_OBJ_WRITTEN(procval, Qundef, VM_ENV_ENVVAL(captured->ep));
rb_vm_block_ep_update(procval, &proc->block, captured->ep);
vm_block_type_set(&proc->block, block_type);
proc->safe_level = safe_level;
@ -817,6 +823,26 @@ rb_proc_create_from_captured(VALUE klass,
return procval;
}
void
rb_vm_block_copy(VALUE obj, const struct rb_block *dst, const struct rb_block *src)
{
/* copy block */
switch (vm_block_type(src)) {
case block_type_iseq:
case block_type_ifunc:
RB_OBJ_WRITE(obj, &dst->as.captured.self, src->as.captured.self);
RB_OBJ_WRITE(obj, &dst->as.captured.code.val, src->as.captured.code.val);
rb_vm_block_ep_update(obj, dst, src->as.captured.ep);
break;
case block_type_symbol:
RB_OBJ_WRITE(obj, &dst->as.symbol, src->as.symbol);
break;
case block_type_proc:
RB_OBJ_WRITE(obj, &dst->as.proc, src->as.proc);
break;
}
}
VALUE
rb_proc_create(VALUE klass, const struct rb_block *block,
int8_t safe_level, int8_t is_from_method, int8_t is_lambda)
@ -825,23 +851,7 @@ rb_proc_create(VALUE klass, const struct rb_block *block,
rb_proc_t *proc = RTYPEDDATA_DATA(procval);
VM_ASSERT(VM_EP_IN_HEAP_P(GET_THREAD(), vm_block_ep(block)));
/* copy block */
switch (vm_block_type(block)) {
case block_type_iseq:
case block_type_ifunc:
RB_OBJ_WRITE(procval, &proc->block.as.captured.self, block->as.captured.self);
RB_OBJ_WRITE(procval, &proc->block.as.captured.code.val, block->as.captured.code.val);
*((const VALUE **)&proc->block.as.captured.ep) = block->as.captured.ep;
RB_OBJ_WRITTEN(procval, Qundef, VM_ENV_ENVVAL(block->as.captured.ep));
break;
case block_type_symbol:
RB_OBJ_WRITE(procval, &proc->block.as.symbol, block->as.symbol);
break;
case block_type_proc:
RB_OBJ_WRITE(procval, &proc->block.as.proc, block->as.proc);
break;
}
rb_vm_block_copy(procval, &proc->block, block);
vm_block_type_set(&proc->block, block->type);
proc->safe_level = safe_level;
proc->is_from_method = is_from_method;
@ -899,17 +909,17 @@ rb_vm_make_binding(rb_thread_t *th, const rb_control_frame_t *src_cfp)
bindval = rb_binding_alloc(rb_cBinding);
GetBindingPtr(bindval, bind);
vm_bind_update_env(bind, envval);
bind->block.as.captured.self = cfp->self;
bind->block.as.captured.code.iseq = cfp->iseq;
bind->pathobj = ruby_level_cfp->iseq->body->location.pathobj;
vm_bind_update_env(bindval, bind, envval);
RB_OBJ_WRITE(bindval, &bind->block.as.captured.self, cfp->self);
RB_OBJ_WRITE(bindval, &bind->block.as.captured.code.iseq, cfp->iseq);
RB_OBJ_WRITE(bindval, &bind->pathobj, ruby_level_cfp->iseq->body->location.pathobj);
bind->first_lineno = rb_vm_get_sourceline(ruby_level_cfp);
return bindval;
}
const VALUE *
rb_binding_add_dynavars(rb_binding_t *bind, int dyncount, const ID *dynvars)
rb_binding_add_dynavars(VALUE bindval, rb_binding_t *bind, int dyncount, const ID *dynvars)
{
VALUE envval, pathobj = bind->pathobj;
VALUE path = pathobj_path(pathobj);
@ -944,7 +954,7 @@ rb_binding_add_dynavars(rb_binding_t *bind, int dyncount, const ID *dynvars)
ALLOCV_END(idtmp);
vm_set_eval_stack(th, iseq, 0, base_block);
vm_bind_update_env(bind, envval = vm_make_env_object(th, th->ec.cfp));
vm_bind_update_env(bindval, bind, envval = vm_make_env_object(th, th->ec.cfp));
rb_vm_pop_frame(th);
env = (const rb_env_t *)envval;

8
vm_core.h
View file

@ -914,8 +914,8 @@ extern const rb_data_type_t ruby_binding_data_type;
GetCoreDataFromValue((obj), rb_binding_t, (ptr))
typedef struct {
struct rb_block block;
VALUE pathobj;
const struct rb_block block;
const VALUE pathobj;
unsigned short first_lineno;
} rb_binding_t;
@ -1195,6 +1195,8 @@ VM_STACK_ENV_WRITE(const VALUE *ep, int index, VALUE v)
const VALUE *rb_vm_ep_local_ep(const VALUE *ep);
const VALUE *rb_vm_proc_local_ep(VALUE proc);
void rb_vm_block_ep_update(VALUE obj, const struct rb_block *dst, const VALUE *ep);
void rb_vm_block_copy(VALUE obj, const struct rb_block *dst, const struct rb_block *src);
VALUE rb_vm_frame_block_handler(const rb_control_frame_t *cfp);
@ -1458,7 +1460,7 @@ VALUE rb_vm_make_proc(rb_thread_t *th, const struct rb_captured_block *captured,
VALUE rb_vm_make_binding(rb_thread_t *th, const rb_control_frame_t *src_cfp);
VALUE rb_vm_env_local_variables(const rb_env_t *env);
const rb_env_t *rb_vm_env_prev_env(const rb_env_t *env);
const VALUE *rb_binding_add_dynavars(rb_binding_t *bind, int dyncount, const ID *dynvars);
const VALUE *rb_binding_add_dynavars(VALUE bindval, rb_binding_t *bind, int dyncount, const ID *dynvars);
void rb_vm_inc_const_missing_count(void);
void rb_vm_gvl_destroy(rb_vm_t *vm);
VALUE rb_vm_call(rb_thread_t *th, VALUE recv, VALUE id, int argc,

2
vm_eval.c
View file

@ -1360,7 +1360,7 @@ eval_string_with_cref(VALUE self, VALUE src, VALUE scope, rb_cref_t *const cref_
/* save new env */
if (bind && iseq->body->local_table_size > 0) {
vm_bind_update_env(bind, vm_make_env_object(th, th->ec.cfp));
vm_bind_update_env(scope, bind, vm_make_env_object(th, th->ec.cfp));
}
}