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Backported from PHP 7 for PHP 5 by Remi
From 0c78fe4bb55a9d39afc79cbcbadb9a273f2ec2ef Mon Sep 17 00:00:00 2001
From: Dmitry Stogov <dmitry@zend.com>
Date: Fri, 18 Nov 2016 13:19:30 +0300
Subject: [PATCH] Disabled PHP call tracing by default (it makes significant
overhead). This may be enabled again using envirionment variable
USE_ZEND_DTRACE=1.
---
NEWS | 5 +++++
Zend/zend.c | 16 +++++++++++++---
2 files changed, 18 insertions(+), 3 deletions(-)
diff --git a/Zend/zend.c b/Zend/zend.c
index d036152..87cdead 100644
--- a/Zend/zend.c
+++ b/Zend/zend.c
@@ -682,9 +682,19 @@ int zend_startup(zend_utility_functions *utility_functions, char **extensions) /
#if HAVE_DTRACE
/* build with dtrace support */
- zend_compile_file = dtrace_compile_file;
- zend_execute_ex = dtrace_execute_ex;
- zend_execute_internal = dtrace_execute_internal;
+ {
+ char *tmp = getenv("USE_ZEND_DTRACE");
+
+ if (tmp && zend_atoi(tmp, 0)) {
+ zend_compile_file = dtrace_compile_file;
+ zend_execute_ex = dtrace_execute_ex;
+ zend_execute_internal = dtrace_execute_internal;
+ } else {
+ zend_compile_file = compile_file;
+ zend_execute_ex = execute_ex;
+ zend_execute_internal = NULL;
+ }
+ }
#else
zend_compile_file = compile_file;
zend_execute_ex = execute_ex;
--
2.1.4
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