ftrace: Add support for syscall function tracer

This patch adds support for syscall tracing in TEE core. It complements
existing ftrace support for user TAs via adding trace for syscalls that
are in

ftrace: Add support for syscall function tracer

This patch adds support for syscall tracing in TEE core. It complements
existing ftrace support for user TAs via adding trace for syscalls that
are invoked by user TAs into the TEE core.

And after this patch ftrace will cover both TA and TEE core code. So lets
rename config option from CFG_TA_FTRACE_SUPPORT to CFG_FTRACE_SUPPORT.

It is optional to enable syscall trace via CFG_SYSCALL_FTRACE=y config
option in addition to CFG_FTRACE_SUPPORT=y config option.

Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Jerome Forissier <jerome@forissier.org>

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ldelf: ftrace: pass ftrace buffer address to kernel

Enable support to pass ftrace buffer address to kernel during loading
of particular TA. It is required to support function execution time
feature

ldelf: ftrace: pass ftrace buffer address to kernel

Enable support to pass ftrace buffer address to kernel during loading
of particular TA. It is required to support function execution time
feature since kernel needs to update timestamps in ftrace buffer during
TA suspends for proper execution time.

Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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ldelf: support TA ftrace

Adds support in ldelf to dump ftrace data.

Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wikl

ldelf: support TA ftrace

Adds support in ldelf to dump ftrace data.

Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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