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-rw-r--r--docs/tracing.txt5
1 files changed, 4 insertions, 1 deletions
diff --git a/docs/tracing.txt b/docs/tracing.txt
index 5504850857..963c5047fe 100644
--- a/docs/tracing.txt
+++ b/docs/tracing.txt
@@ -74,7 +74,10 @@ Trace events should use types as follows:
Format strings should reflect the types defined in the trace event. Take
special care to use PRId64 and PRIu64 for int64_t and uint64_t types,
-respectively. This ensures portability between 32- and 64-bit platforms.
+respectively. This ensures portability between 32- and 64-bit platforms. Note
+that format strings must begin and end with double quotes. When using
+portability macros, ensure they are preceded and followed by double quotes:
+"value %"PRIx64"".
=== Hints for adding new trace events ===