xDebug installation issue on Mac - php

Question

I'm following https://xdebug.org/docs/install guideline
When I run sudo make test In my MAC 2 PHP versions are installed PHP5 & PHP7 as project requires.
PHP : /usr/local/php5/bin/php
PHP_SAPI : cli
PHP_VERSION : 7.2.7
It gives below error
=====================================================================
EXPECTED FAILED TEST SUMMARY
---------------------------------------------------------------------
Test for bug #1530: Code coverage incorrect for last code line in a loop [tests/bug01530.phpt] XFAIL REASON: PHP bug #76046: PHP generates "FE_FREE" opcode on the wrong line.
=====================================================================
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I tried 2-3 times but same issue occurs.

Answer 1

the reason for the test failure is obvious:
XFAIL REASON: PHP bug #76046: PHP generates "FE_FREE" opcode on the wrong line.
you would need to patch zend_compile.c in the PHP source code (or wait for a fixed version). without patching zend_compile.c test-coverage results might be inaccurate - but nevertheless, common debugging should work. make test wouldn't check for it, when xdebug wouldn't partially rely on it (the title of the test even explicitly states why it checks for the bug). here's the diff, which adds CG(zend_lineno) = ast->lineno;. this "fixes the issue 100%" and not only it's symptoms:
index f1dd49a..9c0893b 100644 (file)
--- a/Zend/zend_compile.c
+++ b/Zend/zend_compile.c
## -4807,6 +4807,7 ## void zend_compile_foreach(zend_ast *ast) /* {{{ */
zend_end_loop(opnum_fetch, &reset_node);
+ CG(zend_lineno) = ast->lineno;
opline = zend_emit_op(NULL, ZEND_FE_FREE, &reset_node, NULL);
}
/* }}} */
this bug affects PHP 7.0, 7.1, 7.2 - PHP 5.x was at least not reported.
since this is not a xdebug bug, installing even with the failed test shouldn't make anything worse, than it already is. to install xdebug, it's not sudo make test but make && sudo make install (only make install requires sudo).