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Diffstat (limited to 'doc/README.log')
| -rw-r--r-- | doc/README.log | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/doc/README.log b/doc/README.log index 75350ecd41..19856d43da 100644 --- a/doc/README.log +++ b/doc/README.log @@ -69,6 +69,21 @@ If CONFIG_LOG is not set, then no logging will be available. The above have SPL versions also, e.g. CONFIG_SPL_MAX_LOG_LEVEL. +Temporary logging within a single file +-------------------------------------- + +Sometimes it is useful to turn on logging just in one file. You can use this: + + #define LOG_DEBUG + +to enable building in of all logging statements in a single file. Put it at +the top of the file, before any #includes. + +To actually get U-Boot to output this you need to also set the default logging +level - e.g. set CONFIG_LOG_DEFAULT_LEVEL to 7 (LOGL_DEBUG) or more. Otherwise +debug output is suppressed and will not be generated. + + Convenience functions --------------------- |