Add test for bug #80426

[nikic]

No description provided.

[nikic]

@dstogov Could you please take a look at this? Currently it causes an assertion failure, but I'm not sure to what degree this is supposed to work. Should we just disable the JIT if zend_execute_ex is replaced, or should it be supported in some way?

[patrickallaert]

@nikic

When not using a debug build of PHP, the result is a segmentation fault. But don't know to what extend the segfault and the assertion failure are related.

[patrickallaert]

In the case the assertion is removed, it crashes with:

Program received signal SIGSEGV, Segmentation fault.
zval_undefined_cv (var=80) at /home/patrick.allaert/Projets/php-src/Zend/zend_execute.c:270
270                     zend_string *cv = CV_DEF_OF(EX_VAR_TO_NUM(var));
(gdb) bt
#0  zval_undefined_cv (var=80) at /home/patrick.allaert/Projets/php-src/Zend/zend_execute.c:270
#1  0x0000555555cf0d59 in _zval_undefined_op1 () at /home/patrick.allaert/Projets/php-src/Zend/zend_execute.c:278
#2  0x0000555555d4f2b1 in zend_pre_inc_helper_SPEC_CV () at /home/patrick.allaert/Projets/php-src/Zend/zend_vm_execute.h:37224
#3  0x0000555555d4f414 in ZEND_PRE_INC_SPEC_CV_RETVAL_UNUSED_HANDLER () at /home/patrick.allaert/Projets/php-src/Zend/zend_vm_execute.h:37261
#4  0x0000555555d721f0 in execute_ex (ex=0x7ffff4e13020) at /home/patrick.allaert/Projets/php-src/Zend/zend_vm_execute.h:57706
#5  0x00007ffff512c114 in custom_zend_execute (execute_data=0x7ffff4e13020) at /home/patrick.allaert/Projets/extcrash/extcrash.c:11
#6  0x0000555555d734fe in zend_execute (op_array=0x7ffff4e5c280, return_value=0x0) at /home/patrick.allaert/Projets/php-src/Zend/zend_vm_execute.h:58856
#7  0x0000555555cc756a in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /home/patrick.allaert/Projets/php-src/Zend/zend.c:1680
#8  0x0000555555c2a5d0 in php_execute_script (primary_file=0x7fffffffc280) at /home/patrick.allaert/Projets/php-src/main/main.c:2488
#9  0x0000555555db3252 in do_cli (argc=7, argv=0x555556d94dd0) at /home/patrick.allaert/Projets/php-src/sapi/cli/php_cli.c:949
#10 0x0000555555db4297 in main (argc=7, argv=0x555556d94dd0) at /home/patrick.allaert/Projets/php-src/sapi/cli/php_cli.c:1336

[dstogov]

Fix is committed as d5a82e2 It disables JIT in case of incompatibilities.