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Segmentation Fault while computing TLS address of weak undef symbol

From: "Glauber de Oliveira Costa" <glommer at gmail dot com>
To: libc-ports at sources dot redhat dot com
Date: Thu, 10 Aug 2006 20:55:43 -0300
Subject: Segmentation Fault while computing TLS address of weak undef symbol
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Hi,

I just went trough a SIGSEGV in the dynamic loader for ARM, while
trying to compute the address of an external weak undef symbol marked
with the __thread identifier. The code excerpt inlined in this message
reproduces the problem, and a fix follows attached.

#pragma weak foo

extern __thread int foo;

int main () {

       return &foo;
}

--
"Free as in Freedom"
Glauber de Oliveira Costa.

Attachment: arm-weakundef-segv
Description: Binary data

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