| 2019-05-08 13:12:25 |
Andy Whitcroft |
bug |
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added bug |
| 2019-05-08 13:14:36 |
Andy Whitcroft |
description |
It seems the previous attempt to disable use of libbfd has been rendered ineffective by an upstream change. This leads us to have a hard dependency on libbfd at a specific minor version. We do not need this library, we can use libiberty and others for the same functions in perf.
This is a recurrance of Bug #1748922. |
It seems the previous attempt to disable use of libbfd has been rendered ineffective by an upstream change:
commit 14541b1e7e723859ff2c75c6fc10cdbbec6b8c34
Author: Stanislav Fomichev <sdf@google.com>
Date: Thu Nov 15 16:32:01 2018 -0800
perf build: Don't unconditionally link the libbfd feature test to -liberty and -lz
This leads us to have a hard dependency on libbfd at a specific minor version. We do not need this library, we can use libiberty and others for the same functions in perf.
This is a recurrance of Bug #1748922. |
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| 2019-05-08 13:14:40 |
Andy Whitcroft |
linux (Ubuntu): status |
New |
Confirmed |
|
| 2019-05-08 13:14:45 |
Andy Whitcroft |
linux (Ubuntu): importance |
Undecided |
High |
|
| 2019-05-08 13:14:47 |
Andy Whitcroft |
linux (Ubuntu): assignee |
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Andy Whitcroft (apw) |
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| 2019-05-08 13:14:55 |
Andy Whitcroft |
nominated for series |
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Ubuntu Eoan |
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| 2019-05-08 13:14:55 |
Andy Whitcroft |
bug task added |
|
linux (Ubuntu Eoan) |
|
| 2019-05-08 13:14:55 |
Andy Whitcroft |
nominated for series |
|
Ubuntu Disco |
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| 2019-05-08 13:14:55 |
Andy Whitcroft |
bug task added |
|
linux (Ubuntu Disco) |
|
| 2019-05-08 13:17:54 |
Andy Whitcroft |
description |
It seems the previous attempt to disable use of libbfd has been rendered ineffective by an upstream change:
commit 14541b1e7e723859ff2c75c6fc10cdbbec6b8c34
Author: Stanislav Fomichev <sdf@google.com>
Date: Thu Nov 15 16:32:01 2018 -0800
perf build: Don't unconditionally link the libbfd feature test to -liberty and -lz
This leads us to have a hard dependency on libbfd at a specific minor version. We do not need this library, we can use libiberty and others for the same functions in perf.
This is a recurrance of Bug #1748922. |
= SRU Justification =
Impact: Linking perf (part of the linux-tools package) against libbfd prevents users to have linux-tools of different kernel versions installed in parallel. Which makes debugging hard.
Fix: As stated above this had been fixed before but upstream changes of the kernel between 4.19 and 5.0 voided those fixes. Unfortunately without causing build failures but causing libbfd to be used again.
Testcase: Extracting ./usr/lib/linux-tools-*/perf from the generated linux-tools package and inspecting it with ldd. Old builds will have a reference to libbfd, the test builds will not.
Risk of regression: low as this is a build-time change.
=====
It seems the previous attempt to disable use of libbfd has been rendered ineffective by an upstream change:
commit 14541b1e7e723859ff2c75c6fc10cdbbec6b8c34
Author: Stanislav Fomichev <sdf@google.com>
Date: Thu Nov 15 16:32:01 2018 -0800
perf build: Don't unconditionally link the libbfd feature test to -liberty and -lz
This leads us to have a hard dependency on libbfd at a specific minor version. We do not need this library, we can use libiberty and others for the same functions in perf.
This is a recurrance of Bug #1748922. |
|
| 2019-05-08 13:18:30 |
Andy Whitcroft |
linux (Ubuntu Disco): status |
New |
Confirmed |
|
| 2019-05-08 13:18:33 |
Andy Whitcroft |
linux (Ubuntu Disco): importance |
Undecided |
High |
|
| 2019-05-08 13:18:35 |
Andy Whitcroft |
linux (Ubuntu Disco): assignee |
|
Andy Whitcroft (apw) |
|
| 2019-05-08 13:18:38 |
Andy Whitcroft |
linux (Ubuntu Eoan): assignee |
Andy Whitcroft (apw) |
|
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| 2019-05-20 13:09:12 |
Stefan Bader |
linux (Ubuntu Disco): status |
Confirmed |
Fix Committed |
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| 2019-05-20 13:09:20 |
Stefan Bader |
linux (Ubuntu Eoan): status |
Confirmed |
Fix Committed |
|
| 2019-07-24 20:24:20 |
Brad Figg |
tags |
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cscc |
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| 2020-07-02 19:30:28 |
Steve Langasek |
linux (Ubuntu Disco): status |
Fix Committed |
Won't Fix |
|
| 2020-08-18 16:47:46 |
Brian Murray |
linux (Ubuntu Eoan): status |
Fix Committed |
Won't Fix |
|
