Bug 367545

Summary:	sys-block/btrace fails because of underlinking
Product:	Gentoo Linux	Reporter:	Diego Elio Pettenò (RETIRED) <flameeyes>
Component:	New packages	Assignee:	Robin Johnson <robbat2>
Status:	RESOLVED FIXED
Severity:	normal	CC:	kensington
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Bug Depends on:
Bug Blocks:	372079
Attachments:	Build log patch to fix underlinking

Description Diego Elio Pettenò (RETIRED) gentoo-dev

2011-05-16 16:03:23 UTC

Created attachment 273455 [details]
Build log

Hello there!

You're getting this bug because the package in Summary failed to build in my tinderbox using the gold link editor from binutils. Before closing the bug as INVALID let me explain why this is still important!

The gold link editor does not support underlinking of shared objects, which is something I have described in my blog post:

http://blog.flameeyes.eu/2010/11/26/it-s-not-all-gold-that-shines-why-underlinking-is-a-bad-thing

Even the basic link editor (ld.bfd) has an option to support this but it is a heck to enable and get passed, so linking with gold is simply quicker.

Fixing underlinking provides optimized --as-needed builds (because the "softer" version no longer need to recover libraries that are underlinked), so it is a Good Thing To Do.

Thank you very much for the attention!

Comment 1 Michael Palimaka (kensington) gentoo-dev

2011-11-19 18:15:58 UTC

Created attachment 293117 [details, diff]
patch to fix underlinking

Comment 2 Michael Palimaka (kensington) gentoo-dev

2014-03-22 17:46:18 UTC

This is fixed in 1.0.3