Bill Sommerfeld wrote:
On Mon, 2006-06-12 at 15:13, Glen Kriekenbeck wrote:
Hi all,
I'm working with an ISV who asks:
We notice that the system calls are coded differently in the 32 and 64
bit versions of the OS. The 32 version uses sysenter which the 64 uses
syscall. There also seem to be 2 different 32-bit versions in the
/usr/lib/libc: in libc_hwcap1.so.1 and libc_hwcap2.so.1
Is such a change in the works? I'd appreciate a pointer to any further
information about this.
out of curiosity, why does it matter to them? the precise mechanism
used to enter the kernel is a private matter between libc and the
kernel, and new mechanisms could be introduced at any time -- even in a
patch.
I'd been wondering something similar.
Do they perhaps have the mistaken impression they need to explicitly
link to one of the hwcap libraries, if they wish to use it?
-- Rich.
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