On Thu, Nov 14, 2013 at 11:04:04AM +0000, Sandeepa Prabhu wrote: > Hi Jean, > > I have applied this patchset on aarch64 upstream branch,cross-compiled > for arm64 and try running some tests for hardware breakpoints. > > I cross-compiled perf using linaro toolchain > "gcc-linaro-aarch64-linux-gnu-4.7-2013.04-20130415_linux" as > $ cd tools/perf/ > $ make LDFLAGS=-static ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- > > Copied the static binary to my initrd image and tried running tests to > place hw_breakpoint on an kernel symbol as: > > # perf record -e "mem:0xffffffc00013f640:x"
Right, but that's not a valid invocation of perf. You have to give it something to record. Something like: # perf record -e mem:0xffffffc00013f640:x -a -- sleep 10 for example. Will -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/