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Date:   Mon, 28 Dec 2020 09:54:43 -0300
From:   Arnaldo Carvalho de Melo <>
To:     Leo Yan <>
Cc:     John Garry <>, Will Deacon <>,
        Mathieu Poirier <>,
        Masami Hiramatsu <>,
        Peter Zijlstra <>,
        Ingo Molnar <>,
        Mark Rutland <>,
        Alexander Shishkin <>,
        Jiri Olsa <>,
        Namhyung Kim <>,
        Alexandre Truong <>,
        Ian Rogers <>,
        Thomas Richter <>,
        He Zhe <>,
        Sumanth Korikkar <>,
        Alexis Berlemont <>,,
Subject: Re: [PATCH v2 0/3] perf arm64: Support SDT

Em Fri, Dec 25, 2020 at 01:27:48PM +0800, Leo Yan escreveu:
> This patch is to enable SDT on Arm64.
> Since Arm64 SDT marker in ELF file is different from other archs,
> especially for using stack pointer (sp) to retrieve data for local
> variables, patch 01 is used to fixup the arguments for this special
> case.  Patch 02 is to add argument support for Arm64 SDT.
> This patch set has been verified on Arm64/x86_64 platforms with a
> testing program usdt_test.  The testing approach is described in the
> patch set v1 [1].
> Changes from v1:
> * Added Arnaldo's patch for fixing memory leak (Arnaldo);
> * Refined patch "perf probe: Fixup Arm64 SDT arguments" to use
>   asprintf() and check pointer is valid or not (Arnaldo);
> * Minor changes in patch "perf arm64: Add argument support for SDT"
>   for the regular expression;
> * Added Masami's Ack tag for patch 03.
> [1]

This one made it into 5.11
> Arnaldo Carvalho de Melo (1):
>   perf probe: Fix memory leak in synthesize_sdt_probe_command()
These were now merged in perf/core.

> Leo Yan (2):
>   perf probe: Fixup Arm64 SDT arguments
>   perf arm64: Add argument support for SDT


- Arnaldo

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