mkxp-z/libretro/ruby-jump-buffer.patch

32 lines
1.3 KiB
Diff

# Fixes a memory leak in WASI builds of Ruby where VM jump buffers are sometimes not freed.
--- a/signal.c
+++ b/signal.c
@@ -849,6 +849,7 @@ check_stack_overflow(int sig, const uintptr_t addr, const ucontext_t *ctx)
* otherwise it can cause stack overflow again at the same
* place. */
if ((crit = (!ec->tag->prev || !--uplevel)) != FALSE) break;
+ rb_vm_tag_jmpbuf_deinit(&ec->tag->buf);
ec->tag = ec->tag->prev;
}
reset_sigmask(sig);
--- a/vm.c
+++ b/vm.c
@@ -2729,6 +2729,7 @@ vm_exec_handle_exception(rb_execution_context_t *ec, enum ruby_tag_type state, V
if (VM_FRAME_FINISHED_P(ec->cfp)) {
rb_vm_pop_frame(ec);
ec->errinfo = (VALUE)err;
+ rb_vm_tag_jmpbuf_deinit(&ec->tag->buf);
ec->tag = ec->tag->prev;
EC_JUMP_TAG(ec, state);
}
--- a/vm_trace.c
+++ b/vm_trace.c
@@ -455,6 +455,7 @@ rb_exec_event_hooks(rb_trace_arg_t *trace_arg, rb_hook_list_t *hooks, int pop_p)
if (state) {
if (pop_p) {
if (VM_FRAME_FINISHED_P(ec->cfp)) {
+ rb_vm_tag_jmpbuf_deinit(&ec->tag->buf);
ec->tag = ec->tag->prev;
}
rb_vm_pop_frame(ec);