Messages in this thread | | | Date | Fri, 14 May 2004 16:06:22 +0200 (MEST) | From | Mikael Pettersson <> | Subject | perfctr-2.7.2 released |
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Version 2.7.2 of perfctr, the Linux performance monitoring counters driver, is now available at the usual place: http://www.csd.uu.se/~mikpe/linux/perfctr/
This version changes the user/kernel interface from ioctl()s to syscalls. Requested by Andrew Morton (2.6-mm kernel maintainer).
This breaks compatibility with perfctr-2.6 user-space code, so don't even think about using this except for testing. It also only works in the 2.6.6 and 2.6.6-mm2 kernels.
The new user-space syscall() wrappers only work with certain gcc versions and gcc options: x86 without -fPIC and ppc with gcc-3.2 work, while x86 with -fPIC, x86_64, and ppc with gcc-3.4.0 don't. This will be fixed in the next release.
Version 2.7.2, 2004-05-14 - Changes for submission to 2.6.6-mm kernel. Replaced ioctl() interface by new syscall (by request, not choice). Eliminated module support and backwards compatibility. Many other cleanups.
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