Initial commit of BoringSSL for Android.

1 files changed, 104 insertions, 0 deletions

diff --git a/src/crypto/crypto.c b/src/crypto/crypto.c
new file mode 100644
index 0000000..c463d5e
--- /dev/null
+++ b/src/crypto/crypto.c
@@ -0,0 +1,104 @@
+/* Copyright (c) 2014, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#include <openssl/crypto.h>
+
+#include "internal.h"
+
+
+#if !defined(OPENSSL_NO_ASM) && \
+    (defined(OPENSSL_X86) || defined(OPENSSL_X86_64) || \
+     defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64))
+/* x86, x86_64 and the ARMs need to record the result of a cpuid call for the
+ * asm to work correctly, unless compiled without asm code. */
+#define NEED_CPUID
+
+#else
+
+/* Otherwise, don't emit a static initialiser. */
+
+#if !defined(BORINGSSL_NO_STATIC_INITIALIZER)
+#define BORINGSSL_NO_STATIC_INITIALIZER
+#endif
+
+#endif  /* !OPENSSL_NO_ASM && (OPENSSL_X86 || OPENSSL_X86_64 ||
+                               OPENSSL_ARM || OPENSSL_AARCH64) */
+
+
+/* The capability variables are defined in this file in order to work around a
+ * linker bug. When linking with a .a, if no symbols in a .o are referenced
+ * then the .o is discarded, even if it has constructor functions.
+ *
+ * This still means that any binaries that don't include some functionality
+ * that tests the capability values will still skip the constructor but, so
+ * far, the init constructor function only sets the capability variables. */
+
+#if defined(OPENSSL_X86) || defined(OPENSSL_X86_64)
+/* This value must be explicitly initialised to zero in order to work around a
+ * bug in libtool or the linker on OS X.
+ *
+ * If not initialised then it becomes a "common symbol". When put into an
+ * archive, linking on OS X will fail to resolve common symbols. By
+ * initialising it to zero, it becomes a "data symbol", which isn't so
+ * affected. */
+uint32_t OPENSSL_ia32cap_P[4] = {0};
+#elif defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64)
+
+#include "arm_arch.h"
+
+#if defined(__ARM_NEON__)
+uint32_t OPENSSL_armcap_P = ARMV7_NEON | ARMV7_NEON_FUNCTIONAL;
+#else
+uint32_t OPENSSL_armcap_P = ARMV7_NEON_FUNCTIONAL;
+#endif
+
+#endif
+
+
+#if defined(OPENSSL_WINDOWS)
+#define OPENSSL_CDECL __cdecl
+#else
+#define OPENSSL_CDECL
+#endif
+
+#if !defined(BORINGSSL_NO_STATIC_INITIALIZER)
+#if !defined(OPENSSL_WINDOWS)
+static void do_library_init(void) __attribute__ ((constructor));
+#else
+#pragma section(".CRT$XCU", read)
+static void __cdecl do_library_init(void);
+__declspec(allocate(".CRT$XCU")) void(*library_init_constructor)(void) =
+    do_library_init;
+#endif
+#endif  /* !BORINGSSL_NO_STATIC_INITIALIZER */
+
+/* do_library_init is the actual initialization function. If
+ * BORINGSSL_NO_STATIC_INITIALIZER isn't defined, this is set as a static
+ * initializer. Otherwise, it is called by CRYPTO_library_init. */
+static void OPENSSL_CDECL do_library_init(void) {
+ /* WARNING: this function may only configure the capability variables. See the
+  * note above about the linker bug. */
+#if defined(NEED_CPUID)
+  OPENSSL_cpuid_setup();
+#endif
+}
+
+void CRYPTO_library_init(void) {
+  /* TODO(davidben): It would be tidier if this build knob could be replaced
+   * with an internal lazy-init mechanism that would handle things correctly
+   * in-library. */
+#if defined(BORINGSSL_NO_STATIC_INITIALIZER)
+  do_library_init();
+#endif
+}