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Bug 329152

Summary:

Debug apparently out of sync

Product:

[Tools] CDT

Reporter:

psdasilva

Component:

cdt-debug

Assignee:

cdt-debug-inbox <cdt-debug-inbox>

Status:

RESOLVED NOT_ECLIPSE

QA Contact:

Ken Ryall <ken.ryall>

Severity:

normal

Priority:

CC:

cdtdoug, jamesblackburn+eclipse, pawel.1.piech

Version:

8.0

Target Milestone:

---

Hardware:

OS:

Linux

Whiteboard:

Attachments:

Description	Flags
Snapshot before stepping.	none
After stepping ("if" condition failled)	none

Description psdasilva

2010-10-31 00:20:15 EDT

Build Identifier: 20100917-0705

In the attached fragment of code condition at line 846. So, debugger should go to line 856 or perhaps 852 but it goes to line 851! Inserting dummy statements before 851 debugger always goes to the last line before '}'.

This seems to begin to happen after upgrading gcc to 4.4.4 or eclipse from 3.5.1 to 3.5.2. Not sure.

I am using:
Gentoo Linux;
gcc 4.4.4
gdb 7.0.1 (I have also tried with 7.2)
eclipse cdt current version.


Reproducible: Always

Comment 1 psdasilva

2010-10-31 00:21:30 EDT

Created attachment 182108 [details]
Snapshot before stepping.

Comment 2 psdasilva

2010-10-31 00:23:02 EDT

Created attachment 182109 [details]
After stepping ("if" condition failled)

Comment 3 psdasilva

2010-10-31 00:25:33 EDT

(In reply to comment #0)

> In the attached fragment of code condition at line 846.
Should be:
In the attached fragment of code, condition at line 846 fails.

Comment 4 James Blackburn

2011-02-24 09:34:19 EST

You're debugging optimised code.  The compiler's optimiser reorders instructions so that there's no longer a one-to-one correspondence with the C.  Build -O0 if you want an easier debugging experience.