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Re: PROVIDE in linker script broken for expressions with more than two references

From: Alan Modra <amodra at bigpond dot net dot au>
To: Robert Norton <rnorton at broadcom dot com>
Cc: binutils <binutils at sources dot redhat dot com>
Date: Thu, 25 Sep 2008 00:34:59 +0930
Subject: Re: PROVIDE in linker script broken for expressions with more than two references
References: <2DFD360E328B3941911E6D28B085D990100BD0B363@SJEXCHCCR01.corp.ad.broadcom.com>

On Wed, Sep 24, 2008 at 04:54:01AM -0700, Robert Norton wrote:
> There seems to be a bug in the way that ld handles PROVIDE. If there are more than two symbols referenced in an expression which are defined using PROVIDE then the third is erroneously flagged as undefined. For example:
[snip]

The problem is that fold_binary doesn't evaluate rhs if the lhs is
invalid.  I have a patch I'll commit in the morning after some
testing.

-- 
Alan Modra
Australia Development Lab, IBM

Follow-Ups:
- RE: PROVIDE in linker script broken for expressions with more than two references
  - From: Robert Norton
- Re: PROVIDE in linker script broken for expressions with more than two references
  - From: Alan Modra

References:
- PROVIDE in linker script broken for expressions with more than two references
  - From: Robert Norton

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