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tracetool/syslog: add Rust support

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The syslog backend needs the syslog function from libc and the LOG_INFO enum
value; they are re-exported as "::trace::syslog" and "::trace::LOG_INFO"
so that device crates do not all have to add the libc dependency, but
otherwise there is nothing special.

Signed-off-by: Tanish Desai <tanishdesai37@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20250929154938.594389-17-pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Tanish Desai
2025-10-01 11:22:07 -04:00
committed by Stefan Hajnoczi
parent 7dbee12742
commit 1461752f0f
6 changed files with 57 additions and 2 deletions
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scripts/tracetool/backend/syslog.py
+6 -1
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@@ -12,7 +12,7 @@ __maintainer__ = "Stefan Hajnoczi"
__email__ = "stefanha@redhat.com"
from tracetool import out
from tracetool import out, expand_format_string
PUBLIC = True
@@ -38,6 +38,11 @@ def generate_h(event, group):
fmt=event.fmt.rstrip("\n"),
argnames=argnames)
def generate_rs(event, group):
out(' let format_string = c"%(fmt)s";',
' unsafe {::trace::syslog(::trace::LOG_INFO, format_string.as_ptr() as *const c_char, %(args)s);}',
fmt=expand_format_string(event.fmt),
args=event.args.rust_call_varargs())
def generate_h_backend_dstate(event, group):
out(' trace_event_get_state_dynamic_by_id(%(event_id)s) || \\',