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authorZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2014-10-22 23:27:57 -0500
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2014-10-23 00:27:57 -0400
commitcb41ff2922b8a555c01d52e1038ac26360253c15 (patch)
tree5c8497de2074012d900cb22e6d957e0d14560907 /src/shared/log.h
parent8847551bcbfa8265bae04f567bb1aadc7b480325 (diff)
shared/log: add log_trace as compile-time optional debugging
Repetetive messages can be annoying when running with SYSTEMD_LOG_LEVEL=debug, but they are sometimes very useful when debugging problems. Add log_trace which is like log_debug but becomes a noop unless LOG_TRACE is defined during compilation. This makes it easy to enable very verbose logging for a subset of programs when compiling from source.
Diffstat (limited to 'src/shared/log.h')
-rw-r--r--src/shared/log.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/shared/log.h b/src/shared/log.h
index 9918381d39..a3e23a855c 100644
--- a/src/shared/log.h
+++ b/src/shared/log.h
@@ -157,6 +157,12 @@ do { \
#define log_warning(...) log_full(LOG_WARNING, __VA_ARGS__)
#define log_error(...) log_full(LOG_ERR, __VA_ARGS__)
+#ifdef LOG_TRACE
+# define log_trace(...) log_debug(__VA_ARGS__)
+#else
+# define log_trace(...) do {} while(0)
+#endif
+
#define log_struct(level, ...) log_struct_internal(level, __FILE__, __LINE__, __func__, __VA_ARGS__)
#define log_oom() log_oom_internal(__FILE__, __LINE__, __func__)