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Diffstat (limited to 'docs/tracing.txt')
| -rw-r--r-- | docs/tracing.txt | 5 |
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 === |