To: perfctr-devel@lists.sourceforge.net Subject: perfctr-2.7.2 released Cc: linux-kernel@vger.kernel.org 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. / Mikael Pettersson