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Diffstat (limited to 'arch/um/os-Linux/user_syms.c')
-rw-r--r--arch/um/os-Linux/user_syms.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/um/os-Linux/user_syms.c b/arch/um/os-Linux/user_syms.c
index 8da6ab31152..2598158e1f5 100644
--- a/arch/um/os-Linux/user_syms.c
+++ b/arch/um/os-Linux/user_syms.c
@@ -18,14 +18,19 @@ extern void *memmove(void *, const void *, size_t);
extern void *memset(void *, int, size_t);
extern int printf(const char *, ...);
+/* If they're not defined, the export is included in lib/string.c.*/
+#ifdef __HAVE_ARCH_STRLEN
EXPORT_SYMBOL(strlen);
+#endif
+#ifdef __HAVE_ARCH_STRSTR
+EXPORT_SYMBOL(strstr);
+#endif
+
EXPORT_SYMBOL(memcpy);
EXPORT_SYMBOL(memmove);
EXPORT_SYMBOL(memset);
EXPORT_SYMBOL(printf);
-EXPORT_SYMBOL(strstr);
-
/* Here, instead, I can provide a fake prototype. Yes, someone cares: genksyms.
* However, the modules will use the CRC defined *here*, no matter if it is
* good; so the versions of these symbols will always match