X-Git-Url: https://rtime.felk.cvut.cz/gitweb/l4.git/blobdiff_plain/f4122e6e085938b6d216a9ec724b974a603f6992..983fe7c4ac262f56d38a143b1efab1e4afb77a52:/l4/pkg/uclibc/lib/contrib/uclibc/ldso/ldso/ldso.c.orig

diff --git a/l4/pkg/uclibc/lib/contrib/uclibc/ldso/ldso/ldso.c.orig b/l4/pkg/uclibc/lib/contrib/uclibc/ldso/ldso/ldso.c.orig
index b9b150072..8d8b733da 100644
--- a/l4/pkg/uclibc/lib/contrib/uclibc/ldso/ldso/ldso.c.orig
+++ b/l4/pkg/uclibc/lib/contrib/uclibc/ldso/ldso/ldso.c.orig
@@ -47,7 +47,9 @@
 
 /* Global variables used within the shared library loader */
 char *_dl_library_path         = NULL;	/* Where we look for libraries */
+#ifdef __LDSO_PRELOAD_ENV_SUPPORT__
 char *_dl_preload              = NULL;	/* Things to be loaded before the libs */
+#endif
 char *_dl_ldsopath             = NULL;	/* Location of the shared lib loader */
 int _dl_errno                  = 0;	/* We can't use the real errno in ldso */
 size_t _dl_pagesize            = 0;	/* Store the page size for use later */
@@ -390,7 +392,9 @@ void _dl_get_ready_to_run(struct elf_resolve *tpnt, DL_LOADADDR_TYPE load_addr,
 	     auxvt[AT_UID].a_un.a_val == auxvt[AT_EUID].a_un.a_val &&
 	     auxvt[AT_GID].a_un.a_val == auxvt[AT_EGID].a_un.a_val)) {
 		_dl_secure = 0;
+#ifdef __LDSO_PRELOAD_ENV_SUPPORT__
 		_dl_preload = _dl_getenv("LD_PRELOAD", envp);
+#endif
 		_dl_library_path = _dl_getenv("LD_LIBRARY_PATH", envp);
 	} else {
 		static const char unsecure_envvars[] =
@@ -407,7 +411,9 @@ void _dl_get_ready_to_run(struct elf_resolve *tpnt, DL_LOADADDR_TYPE load_addr,
 			/* We could use rawmemchr but this need not be fast.  */
 			nextp = _dl_strchr(nextp, '\0') + 1;
 		} while (*nextp != '\0');
+#ifdef __LDSO_PRELOAD_ENV_SUPPORT__
 		_dl_preload = NULL;
+#endif
 		_dl_library_path = NULL;
 		/* SUID binaries can be exploited if they do LAZY relocation. */
 		unlazy = RTLD_NOW;
@@ -418,19 +424,6 @@ void _dl_get_ready_to_run(struct elf_resolve *tpnt, DL_LOADADDR_TYPE load_addr,
 	_dl_init_static_tls = &_dl_nothread_init_static_tls;
 #endif
 
-#ifdef __UCLIBC_HAS_SSP__
-	/* Set up the stack checker's canary.  */
-	stack_chk_guard = _dl_setup_stack_chk_guard ();
-# ifdef THREAD_SET_STACK_GUARD
-	THREAD_SET_STACK_GUARD (stack_chk_guard);
-#  ifdef __UCLIBC_HAS_SSP_COMPAT__
-	__guard = stack_chk_guard;
-#  endif
-# else
-	__stack_chk_guard = stack_chk_guard;
-# endif
-#endif
-
 	/* At this point we are now free to examine the user application,
 	 * and figure out which libraries are supposed to be called.  Until
 	 * we have this list, we will not be completely ready for dynamic
@@ -667,6 +660,7 @@ void _dl_get_ready_to_run(struct elf_resolve *tpnt, DL_LOADADDR_TYPE load_addr,
 
 	_dl_map_cache();
 
+#ifdef __LDSO_PRELOAD_ENV_SUPPORT__
 	if (_dl_preload) {
 		char c, *str, *str2;
 
@@ -722,6 +716,7 @@ void _dl_get_ready_to_run(struct elf_resolve *tpnt, DL_LOADADDR_TYPE load_addr,
 				str++;
 		}
 	}
+#endif /* __LDSO_PRELOAD_ENV_SUPPORT__ */
 
 #ifdef __LDSO_PRELOAD_FILE_SUPPORT__
 	do {
@@ -990,6 +985,19 @@ void _dl_get_ready_to_run(struct elf_resolve *tpnt, DL_LOADADDR_TYPE load_addr,
 		tcbp = init_tls ();
 	}
 #endif
+#ifdef __UCLIBC_HAS_SSP__
+	/* Set up the stack checker's canary.  */
+	stack_chk_guard = _dl_setup_stack_chk_guard ();
+# ifdef THREAD_SET_STACK_GUARD
+	THREAD_SET_STACK_GUARD (stack_chk_guard);
+#  ifdef __UCLIBC_HAS_SSP_COMPAT__
+	__guard = stack_chk_guard;
+#  endif
+# else
+	__stack_chk_guard = stack_chk_guard;
+# endif
+#endif
+
 
 	_dl_debug_early("Beginning relocation fixups\n");