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Message-Id: <1344526260-18721-1-git-send-email-andi@firstfloor.org> Date: Thu, 9 Aug 2012 08:31:00 -0700 From: Andi Kleen <andi@...stfloor.org> To: acme@...hat.com Cc: linux-kernel@...r.kernel.org, Andi Kleen <ak@...ux.intel.com>, Pekka Enberg <penberg@...helsinki.fi> Subject: [PATCH] perf, tools: Add description of JIT interface From: Andi Kleen <ak@...ux.intel.com> Add a description of the JIT interface in the perf symbol resolution code. I reverse engineered the format from the source. Cc: Pekka Enberg <penberg@...helsinki.fi> Signed-off-by: Andi Kleen <ak@...ux.intel.com> --- tools/perf/Documentation/jit-interface.txt | 16 ++++++++++++++++ 1 files changed, 16 insertions(+), 0 deletions(-) create mode 100644 tools/perf/Documentation/jit-interface.txt diff --git a/tools/perf/Documentation/jit-interface.txt b/tools/perf/Documentation/jit-interface.txt new file mode 100644 index 0000000..aa66735 --- /dev/null +++ b/tools/perf/Documentation/jit-interface.txt @@ -0,0 +1,16 @@ +perf supports a simple JIT interface to resolve symbols for dynamic code generated +by a JIT. + +The JIT has to write a /tmp/perf-%d.map (%d = pid of process) file + +This is a text file. + +Each line has the following format, fields separated with spaces. + +START SIZE symbolname + +START and SIZE are hex numbers without 0x +symbolname is the rest of the line, so it could contain special characters. + +The ownership of the file has to match the process. + -- 1.7.7.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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