Gentoo Archives: gentoo-dev

From: Tavis Ormandy <taviso@g.o>
To: Philippe Lafoucri?re <lafou@×××××××.fr>
Cc: Gentoo-dev <gentoo-dev@g.o>
Subject: Re: [gentoo-dev] Script to test instruction set.
Date: Tue, 12 Aug 2003 14:43:22
Message-Id: 20030812144307.GB17986@sdf.lonestar.org
In Reply to: Re: [gentoo-dev] Script to test instruction set. by "Philippe Lafoucrière"
1 On Tue, Aug 12, 2003 at 04:26:05PM +0200, Philippe Lafoucri?re wrote:
2 >
3 > > $ ./analyse-x86 /bin/ls
4 > > Checking vendor_id string...GenuineIntel
5 > > Disassembling /bin/ls, please wait...
6 > > i486: 0 i586: 0 ppro: 15 mmx: 0 sse: 8 sse2: 0
7 > > /bin/ls will run on Pentium III (pentium3) or higher processor.
8 >
9 >
10 > did you emerge binutils using these values ?
11 > It may come from a stage install (i686)...
12 >
13
14 no, i used -march=pentium4.
15
16 not all code can take advantage of extended instruction sets, im
17 confident the script is correct.
18
19 The value in brackets is the lowest value you could have passed to
20 -march= in gcc and have the same results (not including scheduling, which
21 obviously doesnt affect compatability).
22
23 --
24 -------------------------------------
25 taviso@××××××××××××.org | finger me for my gpg key.
26 -------------------------------------------------------
27
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