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| author | Daniel P. Berrangé <berrange@redhat.com> | 2021-01-06 13:02:39 +0000 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2021-02-01 10:50:55 +0000 |
| commit | 09612de7e9adbe9666a8fa4cc60bab0a29a68ed1 (patch) | |
| tree | c37c9fce37e0c02fd267c54bde36c5d3d4e3c73d /scripts/tracetool | |
| parent | 9f4e519fd7acbdb027d22e13e4f1cd8e79969dec (diff) | |
| download | focaccia-qemu-09612de7e9adbe9666a8fa4cc60bab0a29a68ed1.tar.gz focaccia-qemu-09612de7e9adbe9666a8fa4cc60bab0a29a68ed1.zip | |
tracetool: also strip %l and %ll from systemtap format strings
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, refcnt, fd, log)
^
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Laurent Vivier <lvivier@redhat.com>
Message-id: 20210106130239.1004729-1-berrange@redhat.com
[Fixed "simiarly" typo found by Laurent Vivier <lvivier@redhat.com>
--Stefan]
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'scripts/tracetool')
| -rw-r--r-- | scripts/tracetool/format/log_stap.py | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/scripts/tracetool/format/log_stap.py b/scripts/tracetool/format/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 == STATE_LITERAL: bits.append(literal) - fmt = 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 = re.sub("%(\d*)(l+|z)(x|u|d)", "%\\1\\3", "".join(bits)) return fmt def generate(events, backend, group): |