| /* 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 <GFp/cpu.h> |
| #include "internal.h" |
| |
| // Our assembly does not use the GOT to reference symbols, which means |
| // references to visible symbols will often require a TEXTREL. This is |
| // undesirable, so all assembly-referenced symbols should be hidden. CPU |
| // capabilities are the only such symbols defined in C. Explicitly hide them, |
| // rather than rely on being built with -fvisibility=hidden. |
| #if defined(OPENSSL_WINDOWS) |
| #define HIDDEN |
| #else |
| #define HIDDEN __attribute__((visibility("hidden"))) |
| #endif |
| |
| #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. |
| HIDDEN uint32_t GFp_ia32cap_P[4] = {0}; |
| #endif |
