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authorko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2017-04-14 07:46:11 +0000
committerko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2017-04-14 07:46:11 +0000
commitc50afaa1c94c150222d684fbc7fc8b79aa62e0c2 (patch)
treea18bdaf152fc1b05bec55d70e07a8eaca827ae01 /vm.c
parent3eb7a6eb0b4466aea4b50043d73e84c85a621f26 (diff)
disable rewind hooks.
* vm.c (hook_before_rewind): skip rewind hooks if err is SystemStackError because rewind hooks can cause stack overflow again and again. * thread.c (ruby_thread_stack_overflow): do not disable all hooks. Additionally, clearing ruby_vm_event_flags is not suitable way to disable hooks. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58349 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'vm.c')
-rw-r--r--vm.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/vm.c b/vm.c
index 869d097d7c..e64c072fdc 100644
--- a/vm.c
+++ b/vm.c
@@ -1637,8 +1637,11 @@ frame_name(const rb_control_frame_t *cfp)
#endif
static void
-hook_before_rewind(rb_thread_t *th, const rb_control_frame_t *cfp, int will_finish_vm_exec, struct vm_throw_data *err)
+hook_before_rewind(rb_thread_t *th, const rb_control_frame_t *cfp, int will_finish_vm_exec, int state, struct vm_throw_data *err)
{
+ if (state == TAG_RAISE && RBASIC_CLASS(err) == rb_eSysStackError) {
+ return;
+ }
switch (VM_FRAME_TYPE(th->cfp)) {
case VM_FRAME_MAGIC_METHOD:
RUBY_DTRACE_METHOD_RETURN_HOOK(th, 0, 0);
@@ -1829,7 +1832,7 @@ vm_exec(rb_thread_t *th)
th->errinfo = Qnil;
result = THROW_DATA_VAL(err);
THROW_DATA_CATCH_FRAME_SET(err, cfp + 1);
- hook_before_rewind(th, th->cfp, TRUE, err);
+ hook_before_rewind(th, th->cfp, TRUE, state, err);
rb_vm_pop_frame(th);
goto finish_vme;
}
@@ -1971,7 +1974,7 @@ vm_exec(rb_thread_t *th)
goto vm_loop_start;
}
else {
- hook_before_rewind(th, th->cfp, FALSE, err);
+ hook_before_rewind(th, th->cfp, FALSE, state, err);
if (VM_FRAME_FINISHED_P(th->cfp)) {
rb_vm_pop_frame(th);