Change in coreboot[master]: include/timestamp: Add timestamp_start/end() macro for timestamps ranges

[Jakub Czapiga (Code Review)]

Jakub Czapiga has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/62020 )

Change subject: include/timestamp: Add timestamp_start/end() macro for timestamps ranges
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include/timestamp: Add timestamp_start/end() macro for timestamps ranges

Timestamp IDs following pattern *_START/*_END can be used with macros
introduces with this patch to make timestamping of execution stages
easier and cleaner.

Signed-off-by: Jakub Czapiga 
Change-Id: I2a7d08b6b11e89d875a574468e11bc3e65a21b22
---
M src/include/timestamp.h
1 file changed, 7 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/20/62020/1

diff --git a/src/include/timestamp.h b/src/include/timestamp.h
index cbe9934..2417315 100644
--- a/src/include/timestamp.h
+++ b/src/include/timestamp.h
@@ -42,6 +42,13 @@
 #define get_us_since_boot() 0
 #endif

+/*
+ * timestamp_start(id_prefix) and timestamp_end(id_prefix) should be called instead of
+ * timestamp_add_now(id) whenever possible to make it clear, when certain stage starts and ends.*
+ */
+#define timestamp_start(id_prefix) timestamp_add_now(id_prefix ## _START)
+#define timestamp_end(id_prefix) timestamp_add_now(id_prefix ## _END)
+
 /**
  * Workaround for guard combination above.
  */