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gdb php扩展调试

由于官方的扩展protocolbuffers不支持php7，没有人在维护了，现在自己拉了一个分支尝试让该扩展支持php7。
地址：https://github.com/henryzxj/php-protocolbuffers
测试代码为：
{{{
<?php
$target = new ProtocolBuffers\DescriptorBuilder();
if ($target instanceof ProtocolBuffersDescriptorBuilder) {
		echo "OK" . PHP_EOL;
} else {
		echo get_class($target) . PHP_EOL;
}
运行php test.php出现段错误。
使用gdb调试，
henryzhu@henryzhu-All-Series:~/core_files$ gdb php core-php.20633
GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.04) 7.11.1
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from php...(no debugging symbols found)...done.

warning: core file may not match specified executable file.
[New LWP 20633]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `php test.php'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x0000000000000000 in ?? ()
(gdb) bt
#0  0x0000000000000000 in ?? ()
#1  0x0000562e39b0e59e in ?? ()
#2  0x0000562e39abd36b in execute_ex ()
#3  0x0000562e39a6cda1 in dtrace_execute_ex ()
#4  0x0000562e39b110a7 in zend_execute ()
#5  0x0000562e39a7cfa3 in zend_execute_scripts ()
#6  0x0000562e39a1d760 in php_execute_script ()
#7  0x0000562e39b12d67 in ?? ()
#8  0x0000562e399020f4 in main ()
(gdb) quit
}}}

这里没办法看到函数，请指点下！

发布于6年前 · 1 次浏览 · 来自提问

bug

这里没办法看到函数，请指点下！