Re: [PATCH 1/2] perf cs-etm: Support sample flags 'insn' and 'insnlen'
From: Arnaldo Carvalho de Melo
Date: Mon Aug 19 2019 - 14:59:13 EST
Em Mon, Aug 19, 2019 at 12:08:26PM -0600, Mathieu Poirier escreveu:
> On Thu, 15 Aug 2019 at 02:30, Leo Yan <leo.yan@xxxxxxxxxx> wrote:
> > The synthetic branch and instruction samples are missed to set
> > instruction related info, thus perf tool fails to display samples with
> > flags '-F,+insn,+insnlen'.
> > CoreSight trace decoder has provided sufficient information to decide
> > the instruction size based on the isa type: A64/A32 instruction are
> > 32-bit size, but one exception is the T32 instruction size, which might
> > be 32-bit or 16-bit.
> > This patch handles for these cases and it reads the instruction values
> > from DSO file; thus can support flags '-F,+insn,+insnlen'.
> The code seems to be correct. I have also tested this patch.
> Reviewed-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>