Bug 1110980
| Summary: | Qt Creator debugging issue after GDB update | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Chris Derichs <chris+rhbugzilla> | ||||||
| Component: | qt-creator | Assignee: | Sandro Mani <manisandro> | ||||||
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||||
| Severity: | unspecified | Docs Contact: | |||||||
| Priority: | unspecified | ||||||||
| Version: | 20 | CC: | davejohansen, gbenson, itamar, jan.kratochvil, jreznik, ltinkl, manisandro, palves, pmuldoon, rdieter, sergiodj, tromey | ||||||
| Target Milestone: | --- | ||||||||
| Target Release: | --- | ||||||||
| Hardware: | x86_64 | ||||||||
| OS: | Linux | ||||||||
| Whiteboard: | |||||||||
| Fixed In Version: | qt-creator-3.1.2-1.fc20 | Doc Type: | Bug Fix | ||||||
| Doc Text: | Story Points: | --- | |||||||
| Clone Of: | |||||||||
| : | 1111908 (view as bug list) | Environment: | |||||||
| Last Closed: | 2014-07-05 14:52:15 UTC | Type: | Bug | ||||||
| Regression: | --- | Mount Type: | --- | ||||||
| Documentation: | --- | CRM: | |||||||
| Verified Versions: | Category: | --- | |||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||
| Embargoed: | |||||||||
| Bug Depends On: | |||||||||
| Bug Blocks: | 1111908 | ||||||||
| Attachments: |
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Created attachment 910230 [details]
Screenshot of it working
Created attachment 910232 [details]
Screenshot of it broken
The GDB slowness is tracked as: Bug 1096131 This should not affect any GDB functionality, though. Sorry for breaking inter-Component compatibility in stable Fedora release. qt-creator needs to backport this fix: https://github.com/qtproject/qt-creator/commit/e3979fe09d7dd3ef1546e97d22d76178c8e38303 Debugger: Make dumper work with GDB 7.7 GDB 7.7 changed behavior e.g. for the names of anonymous fields, we need to adjust dumpers and some tests. GDB change ("regression") since:
echo 'struct s { union { int a; long b; }; } v;'|gcc -o anon.o -Wall -g -c -x c -;! ../gdb -data-directory ../data-directory -batch ./anon.o -ex "python print(gdb.lookup_global_symbol('v').value().type.fields()[0].name)"|grep -w None
b5b08fb4ffa53ec088f8ad865bee0fd6edb2906f is the first bad commit
commit b5b08fb4ffa53ec088f8ad865bee0fd6edb2906f
Author: Siva Chandra <sivachandra>
Date: Fri Dec 27 12:20:59 2013 -0800
Use bitpos and type to lookup a gdb.Field object when its name is 'None'.
PR python/15464
PR python/16113
Fixed package building: http://koji.fedoraproject.org/koji/taskinfo?taskID=7065018 qt-creator-3.1.1-3.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/qt-creator-3.1.1-3.fc20 Package qt-creator-3.1.1-3.fc20: * should fix your issue, * was pushed to the Fedora 20 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing qt-creator-3.1.1-3.fc20' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2014-7622/qt-creator-3.1.1-3.fc20 then log in and leave karma (feedback). This update fixes the issue for me using: Name : gdb Arch : x86_64 Version : 7.7.1 Release : 13.fc20 and Name : qt-creator Arch : x86_64 Version : 3.1.1 Release : 3.fc20 Thanks! qt-creator-3.1.2-1.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/qt-creator-3.1.2-1.fc20 qt-creator-3.1.2-1.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report. |
Description of problem: QT Creator loses the ability to inspect certain objects in the locals window after GDB update. Also, if qt-debuginfo is installed everything debugging related becomes very slow. Version-Release number of selected component (if applicable): This combo is broken: gdb-7.7.1-13.fc20 qt-devel-4.8.6-9.fc20 qt-creator-3.1.1-1.fc20 This combo worked: gdb-7.6.50.20130731-16.fc20 qt-devel-4.8.6-9.fc20 qt-creator-3.1.1-1.fc20 How reproducible: always Steps to Reproduce: 1. Install gdb, qt-creator, qt-devel 2. New Qt Widgets Application, accept all the defaults. 3. In the .h include: #include <QMap> #include <QString> 4. In the mainwindow.cpp after setupUi() QMap<QString, QString> test; test["Hello"] = "hey"; test["World"] = "there"; 5. Put a breakpoint on test["World"] = "there"; 6. Start debugging (if you have qt-debuginfo installed expect it to take forever to hit that breakpoint) Actual results: In the locals window: | test <not accssible> QMap<QString, QString> Expected results: In the locals window: > test < 1 items> QMap<QString, QString> Additional info: Having the qt-debuginfo installed really slows down everything. Im guessing I should be filing this against some qt package but since downgrading gdb fixed all my debugging issues I thought I'd start here.