Add visibility rules.
This change marks public symbols as dynamically exported. This means
that it becomes viable to build a shared library of libcrypto and libssl
with -fvisibility=hidden.
On Windows, one not only needs to mark functions for export in a
component, but also for import when using them from a different
component. Because of this we have to build with
|BORINGSSL_IMPLEMENTATION| defined when building the code. Other
components, when including our headers, won't have that defined and then
the |OPENSSL_EXPORT| tag becomes an import tag instead. See the #defines
in base.h
In the asm code, symbols are now hidden by default and those that need
to be exported are wrapped by a C function.
In order to support Chromium, a couple of libssl functions were moved to
ssl.h from ssl_locl.h: ssl_get_new_session and ssl_update_cache.
Change-Id: Ib4b76e2f1983ee066e7806c24721e8626d08a261
Reviewed-on: https://boringssl-review.googlesource.com/1350
Reviewed-by: Adam Langley <agl@google.com>
diff --git a/include/openssl/rc4.h b/include/openssl/rc4.h
index 4b87e8b..4c13117 100644
--- a/include/openssl/rc4.h
+++ b/include/openssl/rc4.h
@@ -74,11 +74,13 @@
/* RC4_set_key performs an RC4 key schedule and initialises |rc4key| with |len|
* bytes of key material from |key|. */
-void RC4_set_key(RC4_KEY *rc4key, unsigned len, const uint8_t *key);
+OPENSSL_EXPORT void RC4_set_key(RC4_KEY *rc4key, unsigned len,
+ const uint8_t *key);
/* RC4 encrypts (or decrypts, it's the same with RC4) |len| bytes from |in| to
* |out|. */
-void RC4(RC4_KEY *key, size_t len, const uint8_t *in, uint8_t *out);
+OPENSSL_EXPORT void RC4(RC4_KEY *key, size_t len, const uint8_t *in,
+ uint8_t *out);
#if defined(__cplusplus)
