diff options
| author | 卜部昌平 <[email protected]> | 2020-06-10 10:19:48 +0900 |
|---|---|---|
| committer | 卜部昌平 <[email protected]> | 2020-06-10 10:22:39 +0900 |
| commit | 5648976c3c207b0f750a5ce26ba4862c63f6a626 (patch) | |
| tree | d82bf56dd8ddd8b1db725f4a30810661eb6121f9 | |
| parent | 8bee9e5cd5e806f94fa727fa58a85effae908c57 (diff) | |
vm_call_method: avoid marking on-stack object
This callcache is on stack, must not be GCed. However its contents are
copied from other materials, which can be an ordinal object. Should
set a flag to make sure it is properly skipped by the GC.
| -rw-r--r-- | vm_insnhelper.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/vm_insnhelper.c b/vm_insnhelper.c index 65bebd34e8..611739e957 100644 --- a/vm_insnhelper.c +++ b/vm_insnhelper.c @@ -3183,7 +3183,8 @@ vm_call_method(rb_execution_context_t *ec, rb_control_frame_t *cfp, struct rb_ca else { /* caching method info to dummy cc */ VM_ASSERT(vm_cc_cme(cc) != NULL); - const struct rb_callcache cc_on_stack = *cc; + struct rb_callcache cc_on_stack = *cc; + FL_SET_RAW((VALUE)&cc_on_stack, VM_CALLCACHE_UNMARKABLE); struct rb_call_data dummy = { .ci = ci, .cc = &cc_on_stack, |