Starting with Linux 3.15, unexported tracepoints can't be used
directly. Use for_each_kernel_tracepoint to iterate over all
tracepoints and save off the tracepoints we're interested in.

Signed-off-by: Drew Richardson <drew.richardson@arm.com>
Signed-off-by: Jon Medhurst <tixy@linaro.org>

These tracepoints are not used by anything and removing them lets us
avoid any rework required for the tracepoint API changes in Linux 3.15.

Signed-off-by: Drew Richardson <drew.richardson@arm.com>
Signed-off-by: Jon Medhurst <tixy@linaro.org>

When compiling on Linaro Android we get the following error:

bionic/libc/kernel/common/linux/netlink.h:52:2: error: 'sa_family_t' does not name a type
  sa_family_t nl_family;

This is related to an issue that was fixed in Linux 3.1 by commit
6602a4baf4d1a73c (net: Make userland include of netlink.h more sane)
but it seems that the Linux headers used by bionic predate that.

Fortunately, the fix for us is simple: reorder the header file includes
so that the definition of sa_family_t from sys/socket.h is picked up
before being used by linux/netlink.h

Signed-off-by: Jon Medhurst <tixy@linaro.org>

Make this a #warning as in version 5.9. This lets Gator build (with
much reduced functionality) on platforms which require
CONFIG_PERF_EVENTS to be disabled for whatever reason.

Signed-off-by: Jon Medhurst <tixy@linaro.org>

Signed-off-by: Jon Medhurst <tixy@linaro.org>

Make this a #warning as in version 5.9. This lets Gator build (with
much reduced functionality) on platforms which require
CONFIG_PERF_EVENTS to be disabled for whatever reason.

Signed-off-by: Jon Medhurst <tixy@linaro.org>

Use put_task_struct/get_task_struct to ensure the task_struct pointer
is still valid. Change translate_buffer to ensure that both arguments
are written atomically. Drop additional requests if the
translate_buffer is full.

Signed-off-by: Drew Richardson <drew.richardson@arm.com>
Signed-off-by: Pawel Moll <pawel.moll@arm.com>