Stop side exit tracing when reach max_root_trace.

When max_root_trace is reached, JIT in tracing mode will not
compile any new code for side trace, but side exit tracing is
still going on. We stop it directly instead of lazy blacklisting.

Signed-off-by: Wang, Xue xue1.wang@intel.com

Author: wxue1

ext/opcache/jit/zend_jit_trace.c

@@ -7744,6 +7744,15 @@ int ZEND_FASTCALL zend_jit_trace_hot_side(zend_execute_data *execute_data, uint3
 
 	if (ZEND_JIT_TRACE_NUM >= JIT_G(max_root_traces)) {
 		stop = ZEND_JIT_TRACE_STOP_TOO_MANY_TRACES;
+		// visit all JITTed compiled code, replace side exit to vm handler
+		for (uint32_t i = 1; i < ZEND_JIT_TRACE_NUM; i++) {
+			for (uint32_t j = 0; j < zend_jit_traces[i].exit_count; j++) {
+				zend_jit_blacklist_trace_exit(i, j);
+			}
+		}
+		if (JIT_G(debug) & ZEND_JIT_DEBUG_TRACE_BLACKLIST) {
+			fprintf(stderr, "---- All side exits blacklisted");
+		}
 		goto abort;
 	}