Messages in this thread | | | Date | Sun, 23 May 2004 02:20:31 +0200 (CEST) | Subject | Re: i486 emu in mainline? | From | Rene Rebe <> |
| |
Hi,
On: Sun, 23 May 2004 01:40:59 +0200, Christoph Hellwig <hch@lst.de> wrote: > These days gcc uses i486+ only instruction by default in libstdc++ so > most modern distros wouldn't work on i386 cpus anymore. To make it work > again Debian merged Willy Tarreau's patch to trap those and emulate them > on real i386 cpus. The patch is extremely non-invasive and would > certainly be usefull for mainline. Any reason not to include it?
Oh cool! Given the fact with libstdc++ and sparc32 kernel also always contain code to emulatre the mul/div instructions missing in the v7 hardware (just foudn this SIGILL trap by accident recently ..) the comment might be a bit too strict. Maybe something like written in the MATH_EMULATION config:
"If you are not sure, say Y; apart from resulting in a 66 KB bigger kernel, it won't hurt."
Sincerely yours, René Rebe - ROCK Linux stable release maintainer
-- René Rebe - Europe/Germany/Berlin rene@rocklinux.org rene@rocklinux-consulting.de http://www.rocklinux.org http://www.rocklinux-consulting.de
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |