From: Torbjorn Granlund <tege@swox.com>
To: Geoff Keating <geoffk@redhat.com>
Cc: amodra@bigpond.net.au, binutils@sourceware.cygnus.com
Subject: Re: powerpc64-linux infrastructure 5 of 6
Date: Wed, 08 Aug 2001 13:55:00 -0000 [thread overview]
Message-ID: <86r8um1dbq.fsf@king.swox.se> (raw)
In-Reply-To: <200108082105.OAA00687@geoffk.org>
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Geoff Keating <geoffk@geoffk.org> writes:
> Put relocs in the opcode table.
This seems like a bad design. The opcode table is shared between
multiple ABIs and object file formats, and there's no reason to think
that the reloc for an instruction in aix-xcoff would be the same as
the one in powerpc SVR4. For instance,
/* The D field in a D form instruction. This is a displacement off
a register, and implies that the next operand is a register in
parentheses. */
#define D CR + 1
- { 16, 0, 0, 0, PPC_OPERAND_PARENS | PPC_OPERAND_SIGNED },
+ { 16, 0, 0, 0, PPC_OPERAND_PARENS | PPC_OPERAND_SIGNED,
+ BFD_RELOC_PPC_TOC16 },
seems specific to the AIX and powerpc64 ABIs.
Yes, that field is only used for AIX / XCOFF.
It replaces an ugly chunk of ad-hoc code in tc-ppc.c.
Why do you think it is bad design?
--
Torbjörn
next prev parent reply other threads:[~2001-08-08 13:55 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-08-08 6:19 Alan Modra
2001-08-08 13:47 ` Geoff Keating
2001-08-08 13:55 ` Torbjorn Granlund [this message]
2001-08-08 16:44 ` Alan Modra
2001-08-09 12:55 ` Geoff Keating
2001-08-09 14:56 ` Alan Modra
2001-08-23 7:43 ` Torbjorn Granlund
2001-08-23 18:30 ` Alan Modra
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