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RE: Differing results from cross and native compilers

To: Eric DeVolder <>
Subject: RE: Differing results from cross and native compilers
From: Jim Wilson <>
Date: Tue, 19 Sep 2006 16:22:59 -0700
Cc: Thiemo Seufer <>,
In-reply-to: <>
Original-recipient: rfc822;
References: <>
On Tue, 2006-09-19 at 09:57 -0700, Eric DeVolder wrote:

> -       lw      $4,%got($LC0)($28)
> +       la      $4,$LC0

The difference here is -mexplicit-relocs, which is the default for the
first one (cross) but not the second one (native).

The explicit-reloc support is enabled by a run-time configure test,
which tries to run the assembler to see if you have a new enough version
of GNU as that supports the necessary assembler reloc syntax.
Apparently this is going wrong with the native build.  Perhaps you have
a different binutils version, or perhaps there is a problem with your
PATH, or perhaps binutils and gcc weren't configured with the same
prefix, etc.

If you have the build trees, you can look at the gcc/config.h files and
note that one has HAVE_AS_EXPLICIT_RELOCS defined and the other doesn't.

Jim Wilson, GNU Tools Support,

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