Add more comments to _dl_load_cache_lookup().

Calling _dl_load_cache_lookup will load the cache if not already.
If loading the cache fails no more attempts will be made to load
the cache.

1 files changed, 3 insertions, 2 deletions

diff --git a/elf/dl-cache.c b/elf/dl-cache.c
index 2c4bcc6..030fdca 100644
--- a/elf/dl-cache.c
+++ b/elf/dl-cache.c
@@ -172,8 +172,9 @@ _dl_cache_libcmp (const char *p1, const char *p2)
 }
 
 
-/* Look up NAME in ld.so.cache and return the file name stored there,
-   or null if none is found.  */
+/* Look up NAME in ld.so.cache and return the file name stored there, or null
+   if none is found.  The cache is loaded if it was not already.  If loading
+   the cache previously failed there will be no more attempts to load it.  */
 
 const char *
 internal_function