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-rw-r--r--include/link.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/link.h b/include/link.h
index be52b97370..2e771e433a 100644
--- a/include/link.h
+++ b/include/link.h
@@ -79,6 +79,21 @@ struct r_search_path_struct
int malloced;
};
+/* Type used by the l_nodelete member. */
+enum link_map_nodelete
+{
+ /* This link map can be deallocated. */
+ link_map_nodelete_inactive = 0, /* Zero-initialized in _dl_new_object. */
+
+ /* This link map cannot be deallocated. */
+ link_map_nodelete_active,
+
+ /* This link map cannot be deallocated after dlopen has succeded.
+ dlopen turns this into link_map_nodelete_active. dlclose treats
+ this intermediate state as link_map_nodelete_active. */
+ link_map_nodelete_pending,
+};
+
/* Structure describing a loaded shared object. The `l_next' and `l_prev'
members form a chain of all the shared objects loaded at startup.
@@ -203,6 +218,11 @@ struct link_map
freed, ie. not allocated with
the dummy malloc in ld.so. */
+ /* Actually of type enum link_map_nodelete. Separate byte due to
+ a read in add_dependency in elf/dl-lookup.c outside the loader
+ lock. Only valid for l_type == lt_loaded. */
+ unsigned char l_nodelete;
+
#include <link_map.h>
/* Collected information about own RPATH directories. */