perf instrument was forcing killall() to run as root on Android devices.
This constraint was preventing perf from being used on unrooted devices.
However, it appears that it is possible for killall() to succeed on at
least some devices as a regular user.
This commit removes the constraint. Since killall() will default to
running as root whenever possible, the instrument will still behave
correctly on rooted Android devices where root is required.
Added:
get_binary_path: Checks binary_directory for the wanted binary, if
if its not there, it will use which to find a
system one. returns the full path
install_if_needed: will install a binary only if it is not present.
Changes:
- Busybox is now deployed to non-rooted devices
- is_installed has now been removed as the new functions supersede it
- binaries will now always be installed to `binaries_directory` and
not system folders.
- updated workloads to use these new functions
- rt-app and sysbench might still need work
Some options in config_example.py are not reachable. It makes users
confused. So make the options in the file as gobal_alias.
Signed-off-by: zhizhou.zhang <zhizhou.zhang@spreadtrum.com>
list_or_* functions (e.g. list_or_string) will now always return a list,
however will accept lists or indivitual values. Also added a list_or()
generator function, similar to what already exists for list_of().
