From: Simon Schubert <2@0x2c.org>
Date: Fri, 1 Sep 2017 18:34:09 +0000 (+0200)
Subject: cortex_m: add profiling function
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=64b0d5aac0c5214db01f938550e8b126891d5a08;hp=64b0d5aac0c5214db01f938550e8b126891d5a08;p=fw%2Fopenocd

cortex_m: add profiling function

Use DWT_PCSR if present (reads nonzero); otherwise do halt-and-sample pc.

Signed-off-by: Simon Schubert <2@0x2c.org>
Change-Id: Id2dc4665e5008cc497a2e6e6493522d038d5af42
Reviewed-on: http://openocd.zylin.com/4211
Tested-by: jenkins
Reviewed-by: Karl Palsson <karlp@tweak.net.au>
Reviewed-by: Christopher Head <chead@zaber.com>
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
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