Gentoo Archives: gentoo-dev

From: Mike Frysinger <vapier@g.o>
To: gentoo-dev@l.g.o
Subject: Re: [gentoo-dev] x32 fun pants
Date: Fri, 16 Sep 2011 16:25:39
Message-Id: 201109161224.26988.vapier@gentoo.org
In Reply to: Re: [gentoo-dev] x32 fun pants by Mike Frysinger
On Friday, September 16, 2011 12:01:43 Mike Frysinger wrote:
> On Friday, September 16, 2011 10:06:07 Michał Górny wrote: > > But doesn't switching mean we're going to hit LFS PITA once again? > > LFS hasnt really been a pain in a long while. but it's something worth > raising on the x32 lists (which i'll do) since x32 has native 64bit support > (uint64_t == %rax). so there should be no need to have 32bit interfaces at > all for read funcs.
actually, this is already done. in my libx32 libc.so.6, the 64bit ver is an alias to the 32bit ver. 5790: 000cff00 210 FUNC WEAK DEFAULT 11 openat64 6755: 000cff00 210 FUNC WEAK DEFAULT 11 openat 6055: 000d07c0 92 FUNC WEAK DEFAULT 11 creat 6595: 000d07c0 92 FUNC WEAK DEFAULT 11 creat64 so no, there shouldnt be any LFS issues with x32. all file offsets are 64bit. granted, if code does something like "int x = lseek(fd, 0, SEEK_CUR)", it'll break. but that's irrelevant to x32 ... that's broken for all 32bit systems. -mike

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