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* eval.c, vm.c, vm_eval.c, vm_insnhelper.c: fix issues about

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return and c-return trace.  This issue skips (c-)return event
  with global jump such as break or return.  This fix make vm invoke
  hooks at stack rewind timing.  fix [ruby-core:27606] [Bug #2610].
* test/ruby/test_settracefunc.rb: add a test for above.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26395 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
ko1 2010-01-24 13:52:32 +00:00
parent 2979842520
commit 618445576f
6 changed files with 121 additions and 40 deletions
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9
ChangeLog
View file

@ -1,3 +1,12 @@
Sun Jan 24 22:48:05 2010 Koichi Sasada <ko1@atdot.net>
* eval.c, vm.c, vm_eval.c, vm_insnhelper.c: fix issues about
return and c-return trace. This issue skips (c-)return event
with global jump such as break or return. This fix make vm invoke
hooks at stack rewind timing. fix [ruby-core:27606] [Bug #2610].
* test/ruby/test_settracefunc.rb: add a test for above.
Sun Jan 24 14:21:48 2010 Tanaka Akira <akr@fsij.org>
* string.c (rb_enc_strlen_cr): increment by rb_enc_mbminlen(enc) for

25
eval.c
View file

@ -352,11 +352,10 @@ rb_frozen_class_p(VALUE klass)
NORETURN(static void rb_longjmp(int, volatile VALUE));
static void
rb_longjmp(int tag, volatile VALUE mesg)
setup_exception(rb_thread_t *th, int tag, volatile VALUE mesg)
{
VALUE at;
VALUE e;
rb_thread_t *th = GET_THREAD();
const char *file;
volatile int line = 0;
@ -425,10 +424,15 @@ rb_longjmp(int tag, volatile VALUE mesg)
rb_trap_restore_mask();
if (tag != TAG_FATAL) {
EXEC_EVENT_HOOK(th, RUBY_EVENT_RAISE, th->cfp->self,
0 /* TODO: id */, 0 /* TODO: klass */);
EXEC_EVENT_HOOK(th, RUBY_EVENT_RAISE, th->cfp->self, 0, 0);
}
}
static void
rb_longjmp(int tag, volatile VALUE mesg)
{
rb_thread_t *th = GET_THREAD();
setup_exception(th, tag, mesg);
rb_thread_raised_clear(th);
JUMP_TAG(tag);
}
@ -559,9 +563,18 @@ void
rb_raise_jump(VALUE mesg)
{
rb_thread_t *th = GET_THREAD();
rb_control_frame_t *cfp = th->cfp;
VALUE klass = cfp->me->klass;
VALUE self = cfp->self;
ID mid = cfp->me->called_id;
th->cfp = RUBY_VM_PREVIOUS_CONTROL_FRAME(th->cfp);
/* TODO: fix me */
rb_longjmp(TAG_RAISE, mesg);
setup_exception(th, TAG_RAISE, mesg);
EXEC_EVENT_HOOK(th, RUBY_EVENT_C_RETURN, self, mid, klass);
rb_thread_raised_clear(th);
JUMP_TAG(TAG_RAISE);
}
void

23
test/ruby/test_settracefunc.rb
View file

@ -263,6 +263,29 @@ class TestSetTraceFunc < Test::Unit::TestCase
assert_equal([], events)
end
def test_break # [ruby-core:27606] [Bug #2610]
events = []
eval <<-EOF.gsub(/^.*?: /, "")
1: set_trace_func(Proc.new { |event, file, lineno, mid, binding, klass|
2: events << [event, lineno, mid, klass]
3: })
4: [1,2,3].any? {|n| n}
8: set_trace_func(nil)
EOF
[["c-return", 3, :set_trace_func, Kernel],
["line", 4, __method__, self.class],
["c-call", 4, :any?, Enumerable],
["c-call", 4, :each, Array],
["line", 4, __method__, self.class],
["c-return", 4, :each, Array],
["c-return", 4, :any?, Enumerable],
["line", 5, __method__, self.class],
["c-call", 5, :set_trace_func, Kernel]].each{|e|
assert_equal(e, events.shift)
}
end
def test_invalid_proc
assert_raise(TypeError) { set_trace_func(1) }
end

43
vm.c
View file

@ -1001,6 +1001,27 @@ vm_init_redefined_flag(void)
#undef OP
}
/* for vm development */
static const char *
vm_frametype_name(const rb_control_frame_t *cfp)
{
switch (VM_FRAME_TYPE(cfp)) {
case VM_FRAME_MAGIC_METHOD: return "method";
case VM_FRAME_MAGIC_BLOCK: return "block";
case VM_FRAME_MAGIC_CLASS: return "class";
case VM_FRAME_MAGIC_TOP: return "top";
case VM_FRAME_MAGIC_FINISH: return "finish";
case VM_FRAME_MAGIC_CFUNC: return "cfunc";
case VM_FRAME_MAGIC_PROC: return "proc";
case VM_FRAME_MAGIC_IFUNC: return "ifunc";
case VM_FRAME_MAGIC_EVAL: return "eval";
case VM_FRAME_MAGIC_LAMBDA: return "lambda";
default:
rb_bug("unknown frame");
}
}
/* evaluator body */
/* finish
@ -1137,7 +1158,11 @@ vm_exec(rb_thread_t *th)
cont_pc = cont_sp = catch_iseqval = 0;
while (th->cfp->pc == 0 || th->cfp->iseq == 0) {
th->cfp++;
if (UNLIKELY(VM_FRAME_TYPE(th->cfp) == VM_FRAME_MAGIC_CFUNC)) {
const rb_method_entry_t *me = th->cfp->me;
EXEC_EVENT_HOOK(th, RUBY_EVENT_C_RETURN, th->cfp->self, me->called_id, me->klass);
}
th->cfp = RUBY_VM_PREVIOUS_CONTROL_FRAME(th->cfp);
}
cfp = th->cfp;
@ -1298,8 +1323,20 @@ vm_exec(rb_thread_t *th)
goto vm_loop_start;
}
else {
th->cfp++;
if (th->cfp->pc != &finish_insn_seq[0]) {
/* skip frame */
switch (VM_FRAME_TYPE(th->cfp)) {
case VM_FRAME_MAGIC_METHOD:
EXEC_EVENT_HOOK(th, RUBY_EVENT_RETURN, th->cfp->self, 0, 0);
break;
case VM_FRAME_MAGIC_CLASS:
EXEC_EVENT_HOOK(th, RUBY_EVENT_END, th->cfp->self, 0, 0);
break;
}
th->cfp = RUBY_VM_PREVIOUS_CONTROL_FRAME(th->cfp);
if (VM_FRAME_TYPE(th->cfp) != VM_FRAME_MAGIC_FINISH) {
goto exception_handler;
}
else {

15
vm_eval.c
View file

@ -814,6 +814,9 @@ rb_f_loop(VALUE self)
return Qnil; /* dummy */
}
static const char *
vm_frametype_name(const rb_control_frame_t *cfp);
VALUE
rb_iterate(VALUE (* it_proc) (VALUE), VALUE data1,
VALUE (* bl_proc) (ANYARGS), VALUE data2)
@ -852,7 +855,17 @@ rb_iterate(VALUE (* it_proc) (VALUE), VALUE data1,
state = 0;
th->state = 0;
th->errinfo = Qnil;
th->cfp = cfp;
/* check skipped frame */
while (th->cfp != cfp) {
/* printf("skipped frame: %s\n", vm_frametype_name(th->cfp)); */
if (UNLIKELY(VM_FRAME_TYPE(th->cfp) == VM_FRAME_MAGIC_CFUNC)) {
const rb_method_entry_t *me = th->cfp->me;
EXEC_EVENT_HOOK(th, RUBY_EVENT_C_RETURN, th->cfp->self, me->called_id, me->klass);
}
th->cfp = RUBY_VM_PREVIOUS_CONTROL_FRAME(th->cfp);
}
}
else{
/* SDR(); printf("%p, %p\n", cdfp, escape_dfp); */

28
vm_insnhelper.c
View file

@ -360,30 +360,18 @@ call_cfunc(VALUE (*func)(), VALUE recv,
static inline VALUE
vm_call_cfunc(rb_thread_t *th, rb_control_frame_t *reg_cfp,
int num, VALUE recv, const rb_block_t *blockptr, VALUE flag,
int num, VALUE recv, const rb_block_t *blockptr,
const rb_method_entry_t *me)
{
VALUE val = 0;
int state = 0;
const rb_method_definition_t *def = me->def;
VALUE klass = me->klass;
ID id = me->called_id;
rb_control_frame_t *cfp;
EXEC_EVENT_HOOK(th, RUBY_EVENT_C_CALL, recv, id, klass);
EXEC_EVENT_HOOK(th, RUBY_EVENT_C_CALL, recv, me->called_id, me->klass);
TH_PUSH_TAG(th);
/* TODO: fix me. separate event */
if (th->event_flags & (RUBY_EVENT_C_RETURN | RUBY_EVENT_VM)) {
state = TH_EXEC_TAG();
}
else {
_th->tag = _tag.prev;
}
if (state == 0) {
rb_control_frame_t *cfp =
vm_push_frame(th, 0, VM_FRAME_MAGIC_CFUNC,
cfp = vm_push_frame(th, 0, VM_FRAME_MAGIC_CFUNC,
recv, (VALUE) blockptr, 0, reg_cfp->sp, 0, 1);
cfp->me = me;
reg_cfp->sp -= num + 1;
@ -394,10 +382,8 @@ vm_call_cfunc(rb_thread_t *th, rb_control_frame_t *reg_cfp,
}
vm_pop_frame(th);
}
TH_POP_TAG();
EXEC_EVENT_HOOK(th, RUBY_EVENT_C_RETURN, recv, id, klass);
if (state) TH_JUMP_TAG(th, state);
EXEC_EVENT_HOOK(th, RUBY_EVENT_C_RETURN, recv, me->called_id, me->klass);
return val;
}
@ -512,7 +498,7 @@ vm_call_method(rb_thread_t *th, rb_control_frame_t *cfp,
}
case VM_METHOD_TYPE_NOTIMPLEMENTED:
case VM_METHOD_TYPE_CFUNC:{
val = vm_call_cfunc(th, cfp, num, recv, blockptr, flag, me);
val = vm_call_cfunc(th, cfp, num, recv, blockptr, me);
break;
}
case VM_METHOD_TYPE_ATTRSET:{