Bug 129601

Summary:	[PATCH] gas silently treats undefined symbols used as immediate as zero
Product:	[Fedora] Fedora	Reporter:	Lennert Buytenhek <buytenh>
Component:	binutils	Assignee:	Jakub Jelinek <jakub>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	2	Keywords:	EasyFix, Patch
Target Milestone:	---
Target Release:	---
Hardware:	xscale
OS:	Linux
URL:	http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/gas/config/tc-arm.c.diff?r1=1.168&r2=1.169&cvsroot=src
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2004-08-10 20:34:15 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:

Description Lennert Buytenhek 2004-08-10 20:08:58 UTC

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Description of problem:
See http://marc.theaimsgroup.com/?l=linux-kernel&m=108870136100682&w=2
and http://marc.theaimsgroup.com/?l=linux-kernel&m=108872084823635&w=2
and the thread that they are in.

Basically, the following program:

        .globl  _start
_start:
        add     r0, r0, #UNDEFINED_SYMBOL
        mov     pc, lr

assembles just fine, using zero for UNDEFINED_SYMBOL.  But instead, it
should complain about UNDEFINED_SYMBOL being undefined and abort.

Version-Release number of selected component (if applicable):
2.15.90.0.3-8

How reproducible:
Always

Steps to Reproduce:
   

Additional info:

This problem has been fixed in binutils CVS.  See:

http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/gas/config/tc-arm.c.diff?r1=1.168&r2=1.169&cvsroot=src

Comment 1 Jakub Jelinek 2004-08-10 20:34:15 UTC

Given that Fedora Core is not ported to arm, nor to my knowledge is there
any Fedora Core based ARM disto, I doubt this needs to be fixed
in Fedora Core 2 binutils.
Things fixed in CVS binutils will be in Fedora Core 3.