Bug 129601 – [PATCH] gas silently treats undefined symbols used as immediate as zero

Bug 129601 - [PATCH] gas silently treats undefined symbols used as immediate as zero

Summary:	[PATCH] gas silently treats undefined symbols used as immediate as zero

Status:	CLOSED NOTABUG

Aliases:	None

Product:	Fedora
Classification:	Fedora
Component:	binutils (Show other bugs)
Sub Component:
Version:	2
Hardware:	xscale Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Jakub Jelinek
QA Contact:
Docs Contact:

URL:	http://sources.redhat.com/cgi-bin/cvs...
Whiteboard:
Keywords:	EasyFix, Patch

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2004-08-10 16:08 EDT by Lennert Buytenhek
Modified:	2007-11-30 17:10 EST (History)
CC List:	0 users

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2004-08-10 16:34:15 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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Description Lennert Buytenhek 2004-08-10 16:08:58 EDT

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040510

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 16:34:15 EDT

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.

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