opcache: symbol not found in flat namespace (_zend_gdb_register_code) when JIT enabled on Mac OS X
Nobody has claimed this yet.
- Dominant language
- C
- Stars
- 40.4k
- Forks
- 8.1k
- Avg merge
- 2d 13h
- Merged PRs (30d)
- 96
Description
Description
When compiling PHP 8.2 on Mac OS X with the following configuration:
./configure --enable-embed=static --enable-zts --with-iconv=/opt/homebrew/opt/libiconv/ --enable-opcache
I get this error when loading the opcache.so extension:
Failed loading /usr/local/lib/php/extensions/no-debug-zts-20220829/opcache.so: dlopen(/usr/local/lib/php/extensions/no-debug-zts-20220829/opcache.so, 0x0009): symbol not found in flat namespace (_zend_gdb_register_code)
Disabling opcache JIT fixes the issue:
./configure --enable-embed=static --enable-zts --with-iconv=/opt/homebrew/opt/libiconv/ --enable-opcache --disable-opcache-jit
PHP Version
PHP 8.2-dev
Operating System
macOS 12.6
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the issue with the PHP 8.2-dev configure command on macOS 12.6, keeping opcache JIT enabled, and compare it with the --disable-opcache-jit configuration. Trace the opcache extension loading failure involving _zend_gdb_register_code; done means the extension loads successfully with JIT enabled under the reported build configuration.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c, php
- Domain
- build-system, compilers
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100