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Re: PowerPC: gettimeofday optimization by using IFUNC
- From: Nix <nix at esperi dot org dot uk>
- To: Mike Frysinger <vapier at gentoo dot org>
- Cc: libc-alpha at sourceware dot org
- Date: Sun, 03 Mar 2013 16:14:02 +0000
- Subject: Re: PowerPC: gettimeofday optimization by using IFUNC
- References: <5127C775.1050804@linux.vnet.ibm.com><m2sj4ow19e.fsf@firstfloor.org> <5127D4E5.107@linux.vnet.ibm.com><201303030019.21130.vapier@gentoo.org>
On 3 Mar 2013, Mike Frysinger said:
> there is a vdso for 32bit apps (not sure if it's only for x86_64 kernels), but
No, it's for everything:
% uname -a
Linux fold 3.7.9+ #1 Tue Feb 26 00:24:02 GMT 2013 i586 GNU/Linux
% ldd /bin/ls
linux-gate.so.1 => (0xb7793000)
[...]
linux-gate.so.1 is, IIRC, the 32-bit vdso.
--
NULL && (void)