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scripts/tracetool: silence SystemTap dtrace(1) long long warnings 

SystemTap's dtrace(1) prints the following warning when it encounters
long long arguments:

  Warning: /usr/bin/dtrace:trace/trace-dtrace-hw_virtio.dtrace:76: syntax error near:
  probe vhost_vdpa_dev_start

  Warning: Proceeding as if --no-pyparsing was given.

Use the uint64_t and int64_t types, respectively. This works with all
host CPU 32- and 64-bit data models (ILP32, LP64, and LLP64) that QEMU
supports.

Reported-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20201020094043.159935-1-stefanha@redhat.com
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2020-10-20 10:40:43 +01:00
parent 92eecfff32
commit 35e28cb0f2
1 changed files with 6 additions and 0 deletions
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6
scripts/tracetool/format/d.py
View File

@ -57,6 +57,12 @@ def generate(events, backend, group):
# Avoid it by changing probe type to signed char * beforehand.
if type_ == 'int8_t *':
type_ = 'signed char *'
# SystemTap dtrace(1) emits a warning when long long is used
type_ = type_.replace('unsigned long long', 'uint64_t')
type_ = type_.replace('signed long long', 'int64_t')
type_ = type_.replace('long long', 'int64_t')
if name in RESERVED_WORDS:
name += '_'
args.append(type_ + ' ' + name)