paxldso: always expose ldpaths array

This fixes building when ldso config logic is unavailable since consumers
(like scanelf) always attempt to walk the array.  Changing the code to be
an empty array by default so it won't suck up too much space when support
isn't available.

2 files changed, 4 insertions, 3 deletions

diff --git a/paxldso.c b/paxldso.c
index 93eaf97..ce64e6c 100644
--- a/paxldso.c
+++ b/paxldso.c
@@ -235,11 +235,11 @@ static void ldso_cache_cleanup(void)
  * ld.so.conf logic
  */
 
-#if PAX_LDSO_CONFIG
-
 static array_t _ldpaths = array_init_decl;
 array_t *ldpaths = &_ldpaths;
 
+#if PAX_LDSO_CONFIG
+
 #if defined(__GLIBC__) || defined(__UCLIBC__) || defined(__NetBSD__)
 
 int ldso_config_load(const char *fname)
diff --git a/paxldso.h b/paxldso.h
index bbf8852..1517e5e 100644
--- a/paxldso.h
+++ b/paxldso.h
@@ -49,8 +49,9 @@ static inline char *ldso_cache_lookup_lib(elfobj *elf, const char *fname)
 # define PAX_LDSO_CONFIG 1
 #endif
 
-#if PAX_LDSO_CONFIG
+/* Consumers refer to ldpaths directly, so can't hide its def. */
 extern array_t *ldpaths;
+#if PAX_LDSO_CONFIG
 extern int ldso_config_load(const char *fname);
 #else
 static inline int ldso_config_load(const char *fname)