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bh=NQHaTCkQDP+xwXqg+nL4mOQ4xIvI8bOte7o/g+t1dxI=; b=NGbXb654KKNDw3p870cnBUkPYqGuaHvmaiihtF6D+GioT9eeG/KZbYJf6WjhSrf0Vq+rqV czVFMW770YOMBQdde7HTtQESr9dVdCDoqliZrlqWwVaVnXgRbrCJfRjqVJzVDR+fKS+eYR aoMgdxW4hW3ZDvfZlV5adxrf1g/I8hs= X-MC-Unique: ydaCpOqeMsaVxr2p-NYmCA-1 From: Stefan Hajnoczi To: qemu-devel@nongnu.org Subject: [PULL 05/11] tracetool: also strip %l and %ll from systemtap format strings Date: Mon, 1 Feb 2021 15:46:57 +0000 Message-Id: <20210201154703.180022-6-stefanha@redhat.com> In-Reply-To: <20210201154703.180022-1-stefanha@redhat.com> References: <20210201154703.180022-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=stefanha@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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charset="utf-8" From: Daniel P. Berrang=C3=A9 All variables are 64-bit and so %l / %ll are not required, and the latter is actually invalid: $ sudo stap -e 'probe begin{printf ("BEGIN")}' -I . parse error: invalid or missing conversion specifier saw: operator ',' at ./qemu-system-x86_64-log.stp:15118:101 source: printf("%d@%d vhost_vdpa_set_log_base dev: %p base: 0x%x= size: %llu refcnt: %d fd: %d log: %p\n", pid(), gettimeofday_ns(), dev, base, size, re= fcnt, fd, log) ^ Signed-off-by: Daniel P. Berrang=C3=A9 Reviewed-by: Laurent Vivier Reviewed-by: Philippe Mathieu-Daud=C3=A9 Tested-by: Laurent Vivier Message-id: 20210106130239.1004729-1-berrange@redhat.com [Fixed "simiarly" typo found by Laurent Vivier --Stefan] Signed-off-by: Stefan Hajnoczi --- scripts/tracetool/format/log_stap.py | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/scripts/tracetool/format/log_stap.py b/scripts/tracetool/forma= t/log_stap.py index 3e1186ae9c..0b6549d534 100644 --- a/scripts/tracetool/format/log_stap.py +++ b/scripts/tracetool/format/log_stap.py @@ -78,7 +78,12 @@ def c_fmt_to_stap(fmt): elif state =3D=3D STATE_LITERAL: bits.append(literal) =20 - fmt =3D re.sub("%(\d*)z(x|u|d)", "%\\1\\2", "".join(bits)) + # All variables in systemtap are 64-bit in size + # The "%l" integer size qualifier is thus redundant + # and "%ll" is not valid at all. Similarly the size_t + # based "%z" size qualifier is not valid. We just + # strip all size qualifiers for sanity. + fmt =3D re.sub("%(\d*)(l+|z)(x|u|d)", "%\\1\\3", "".join(bits)) return fmt =20 def generate(events, backend, group): --=20 2.29.2