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-rw-r--r--scripts/tracetool/backend/dtrace.py4
-rw-r--r--trace/control.c1
2 files changed, 5 insertions, 0 deletions
diff --git a/scripts/tracetool/backend/dtrace.py b/scripts/tracetool/backend/dtrace.py
index b7fe4c1b50..fc0c8fc52f 100644
--- a/scripts/tracetool/backend/dtrace.py
+++ b/scripts/tracetool/backend/dtrace.py
@@ -44,11 +44,15 @@ def generate_h_begin(events, group):
# require SDT_USE_VARIADIC to be defined. If dtrace includes <sys/sdt.h>
# first without defining SDT_USE_VARIADIC then ust breaks because the
# STAP_PROBEV() macro is not defined.
+ out('#ifndef SDT_USE_VARIADIC')
out('#define SDT_USE_VARIADIC 1')
+ out('#endif')
out('#include "%s"' % header,
'')
+ out('#undef SDT_USE_VARIADIC')
+
# SystemTap defines <provider>_<name>_ENABLED() but other DTrace
# implementations might not.
for e in events:
diff --git a/trace/control.c b/trace/control.c
index 2ffe000818..6558b5c906 100644
--- a/trace/control.c
+++ b/trace/control.c
@@ -225,6 +225,7 @@ void trace_init_file(const char *file)
{
#ifdef CONFIG_TRACE_SIMPLE
st_set_trace_file(file);
+ st_set_trace_file_enabled(true);
#elif defined CONFIG_TRACE_LOG
/*
* If both the simple and the log backends are enabled, "--trace file"