| To: | "Maciej W. Rozycki" <macro@ds2.pg.gda.pl> |
|---|---|
| Subject: | Re: [patch] Prevent dead code/data removal with gcc 3.4 |
| From: | Ralf Baechle <ralf@linux-mips.org> |
| Date: | Fri, 13 Feb 2004 15:53:16 +0100 |
| Cc: | linux-mips@linux-mips.org |
| In-reply-to: | <Pine.LNX.4.55.0402131453360.15042@jurand.ds.pg.gda.pl> |
| Original-recipient: | rfc822;linux-mips@linux-mips.org |
| References: | <Pine.LNX.4.55.0402131453360.15042@jurand.ds.pg.gda.pl> |
| Sender: | linux-mips-bounce@linux-mips.org |
| User-agent: | Mutt/1.4.1i |
On Fri, Feb 13, 2004 at 03:20:27PM +0100, Maciej W. Rozycki wrote: > 2. It changes inline-assembly function prologues to be embedded within the > functions, which makes them a bit safer as they can now explicitly refer > to the "regs" struct and assures the code won't be removed or reordered. It is possible that gcc changes one of the registers before save_static and I can't imagine there's a reliable way to fix this in the inline version. Ralf |
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