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authorLluís Vilanova <vilanova@ac.upc.edu>2017-07-04 10:46:39 +0200
committerStefan Hajnoczi <stefanha@redhat.com>2017-07-17 13:11:12 +0100
commit864a2178d4c014a217cacf76e42b818fe9feb1d4 (patch)
treee3cf45453f3022d8f96de65aadaa413670ef8426 /scripts/tracetool/backend/ust.py
parent61a67f71dd7e437212a2730c4462dff9b3b7b3da (diff)
downloadfocaccia-qemu-864a2178d4c014a217cacf76e42b818fe9feb1d4.tar.gz
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trace: [tcg] Do not generate TCG code to trace dynamically-disabled events
If an event is dynamically disabled, the TCG code that calls the
execution-time tracer is not generated.

Removes the overheads of execution-time tracers for dynamically disabled
events. As a bonus, also avoids checking the event state when the
execution-time tracer is called from TCG-generated code (since otherwise
TCG would simply not call it).

Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-id: 149915799921.6295.13067154430923434035.stgit@frigg.lan
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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