MINOR: init: report the haproxy version and executable path once on errors
If haproxy fails to start and emits an alert, then it can be useful
to have it also emit the version and the path used to load it. Some
users may be mistakenly launching the wrong binary due to a misconfigured
PATH variable and this will save them some troubleshooting time when it
reports that some keywords are not understood.
What we do here is that we *try* to extract the binary name from the
AUX vector on glibc, and we report this as a NOTICE tag before the
very first alert is emitted.
diff --git a/include/types/global.h b/include/types/global.h
index 407fbff..592d288 100644
--- a/include/types/global.h
+++ b/include/types/global.h
@@ -245,6 +245,7 @@
/* bit values to go with "warned" above */
#define WARN_ANY 0x00000001 /* any warning was emitted */
#define WARN_FORCECLOSE_DEPRECATED 0x00000002
+#define WARN_EXEC_PATH 0x00000004 /* executable path already reported */
/* to be used with warned and WARN_* */