Bug 497405
| Summary: | Incorrect debug info for typedef statements within namespaces | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Sami Wagiaalla <swagiaal> | ||||
| Component: | gcc | Assignee: | Jakub Jelinek <jakub> | ||||
| Status: | CLOSED RAWHIDE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | low | ||||||
| Version: | 11 | CC: | dodji, jakub, jan.kratochvil, keiths, mmcgrath | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | All | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2009-06-16 15:17:12 UTC | Type: | --- | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
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Created attachment 343473 [details]
candidate fix
I am testing this patch for now.
I couldn't find a way to easily catch that issue in a regression test in
gcc right now, because I need to test that the DIE of the typedef is properly nested in the right namespace.
I guess I will have to run the gdb testsuite as well, hoping to have a regression test that can catch the issue there.
Okay the patch seems to bootstrap/regtest fine on gcc trunk. So I have opened an upstream bug at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40109. Okay the upstream bug has been fixed. I guess I can't close this bug until a fedora package containing the fix is pushed. So I am unassigning myself from the bug and passing the ball to Jakub :) This bug appears to have been reported against 'rawhide' during the Fedora 11 development cycle. Changing version to '11'. More information and reason for this action is here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping |
The following program: namespace A{ class B{ }; typedef A::B AB; } int main(){ A::AB ab; return 0; } compiled with gcc generates the following debug info: ... <1><43>: Abbrev Number: 5 (DW_TAG_subprogram) <44> DW_AT_external : 1 <45> DW_AT_name : (indirect string, offset: 0x4c): main <49> DW_AT_decl_file : 1 <4a> DW_AT_decl_line : 10 <4b> DW_AT_type : <0x91> <4f> DW_AT_low_pc : 0x40053c <57> DW_AT_high_pc : 0x400547 <5f> DW_AT_frame_base : 0x0 (location list) <63> DW_AT_sibling : <0x91> <2><67>: Abbrev Number: 6 (DW_TAG_lexical_block) <68> DW_AT_low_pc : 0x400540 <70> DW_AT_high_pc : 0x400545 <3><78>: Abbrev Number: 7 (DW_TAG_typedef) <79> DW_AT_name : AB <7c> DW_AT_decl_file : 1 <7d> DW_AT_decl_line : 7 <7e> DW_AT_type : <0x3b> ... The typedef tag <78> is a child of subprogram main instead of namespace A.