Bug 87452

Summary:

visibility doesn't work right.

Product:

[Retired] Red Hat Linux Beta

Reporter:

hjl

Component:

gcc

Assignee:

Jakub Jelinek <jakub>

Status:

CLOSED WONTFIX

QA Contact:

Brian Brock <bbrock>

Severity:

medium

Docs Contact:

Priority:

medium

Version:

alpha 1

CC:

chris.ricker

Target Milestone:

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Target Release:

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Hardware:

All

OS:

Linux

Whiteboard:

Fixed In Version:

Doc Type:

Bug Fix

Doc Text:

Story Points:

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Clone Of:

Environment:

Last Closed:

2004-10-07 10:08:05 UTC

Type:

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Regression:

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Mount Type:

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Documentation:

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CRM:

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Category:

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oVirt Team:

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RHEL 7.3 requirements from Atomic Host:

Cloudforms Team:

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Target Upstream Version:

Embargoed:

Attachments:

Description	Flags
A testcase.	none
A patch to fix the problem.	none

Description hjl 2003-03-26 23:46:36 UTC

# make
gcc -O -DGCC_BUG -c main.c
gcc -O -DGCC_BUG -fPIC -c shared.c
gcc -shared -o libfoo.so  shared.o
gcc -o foo  main.o libfoo.so -Wl,-rpath,.
for f in foo; do echo "Running: $f"; ./$f; \
  if [ $? != 0 ]; then echo Failed; fi; done
Running: foo
Data address: 0x8049924 != Data address from DSO: 0x400187e4
Function address: 0x80484c0 !=  Function address from DSO: 0x4001775f
Data: 100 != Data from DSO: 10
Failed

The testcase will always fail. But without -DGCC_BUG,

Function address: 0x80484c0 !=  Function address from DSO: 0x4001775f

won't be there.

Comment 1 hjl 2003-03-26 23:47:53 UTC

Created attachment 90737 [details]
A testcase.

Comment 2 hjl 2003-05-15 19:49:47 UTC

Created attachment 91702 [details]
A patch to fix the problem.

Comment 3 Jakub Jelinek 2004-10-07 10:08:05 UTC

If you are convinced this is a bug, please push that upstream.
I don't know why addresses of variables should be handled differently
from function pointers and the code you're patching is certainly not there.