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trace: forbid floating point types

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Only one existing trace event uses a floating point type.  Unfortunately
float and double cannot be supported since SystemTap does not have
floating point types.

Remove float and double from the whitelist and document this limitation.
Update the migrate_transferred trace event to use uint64_t instead of
double.

Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Daniel P. Berrangé <berrange@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-id: 20180621150254.4922-1-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2018-06-21 16:02:54 +01:00
parent d071f4cd55
commit ec09f87753
4 changed files with 7 additions and 4 deletions
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2
scripts/tracetool/__init__.py
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@ -53,8 +53,6 @@ ALLOWED_TYPES = [
"bool",
"unsigned",
"signed",
"float",
"double",
"int8_t",
"uint8_t",
"int16_t",