On Mon, Jan 5, 2015 at 4:06 PM, William Cohen <wcohen(a)redhat.com> wrote:
Pratyush has been implementing uprobes support for aarch64 and has
posted a set of patches
review. The really new Linux kernels requires a patch to the
systemtap runtime because the f_dentry macro has been removed. With
the patched systemtap I was able to run the systemtap testsuite and
get some test results exercising the uprobes support:
There looked to be a localized fixes for plt support to eliminate the
unsupported systemtap.base/list.exp plt-* tests.
A number of the tests appear to fail because of userspace arguments
cannot be found for sdt probes.
The uprobe patches still need some refinement. On a number of
systemtap "make installcheck" runs the kernel would get stuck spewing
Unexpected kernel single-step exception at EL1
However, things are looking better for user-space probing on arm64.
good news, thanks for the update.