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target.h
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/* Copyright (c) 2023, 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. */
#ifndef OPENSSL_HEADER_TARGET_H
#define OPENSSL_HEADER_TARGET_H
// Preprocessor symbols that define the target platform.
//
// This file may be included in C, C++, and assembler and must be compatible
// with each environment. It is separated out only to share code between
// <openssl/base.h> and <openssl/asm_base.h>. Prefer to include those headers
// instead.
#if defined(__x86_64) || defined(_M_AMD64) || defined(_M_X64)
#define OPENSSL_64_BIT
#define OPENSSL_X86_64
#elif defined(__x86) || defined(__i386) || defined(__i386__) || defined(_M_IX86)
#define OPENSSL_32_BIT
#define OPENSSL_X86
#elif defined(__AARCH64EL__) || defined(_M_ARM64)
#define OPENSSL_64_BIT
#define OPENSSL_AARCH64
#elif defined(__ARMEL__) || defined(_M_ARM)
#define OPENSSL_32_BIT
#define OPENSSL_ARM
#elif (defined(__PPC64__) || defined(__powerpc64__)) && defined(_LITTLE_ENDIAN)
#define OPENSSL_64_BIT
#define OPENSSL_PPC64LE
#elif (defined(__PPC64__) || defined(__powerpc64__)) && defined(_BIG_ENDIAN)
#define OPENSSL_64_BIT
#define OPENSSL_PPC64BE
#define OPENSSL_BIG_ENDIAN
#elif (defined(__PPC__) || defined(__powerpc__)) && defined(_BIG_ENDIAN)
#define OPENSSL_32_BIT
#define OPENSSL_PPC32BE
#define OPENSSL_BIG_ENDIAN
#elif defined(__s390x__)
#define OPENSSL_64_BIT
#define OPENSSL_S390X
#define OPENSSL_BIG_ENDIAN
#elif defined(__MIPSEL__) && !defined(__LP64__)
#define OPENSSL_32_BIT
#define OPENSSL_MIPS
#elif defined(__MIPSEL__) && defined(__LP64__)
#define OPENSSL_64_BIT
#define OPENSSL_MIPS64
#elif defined(__MIPSEB__) && !defined(__LP64__)
#define OPENSSL_32_BIT
#define OPENSSL_MIPS
#define OPENSSL_BIG_ENDIAN
#elif defined(__riscv) && __SIZEOF_POINTER__ == 8
#define OPENSSL_64_BIT
#define OPENSSL_RISCV64
#elif defined(__riscv) && __SIZEOF_POINTER__ == 4
#define OPENSSL_32_BIT
#elif defined(__loongarch_lp64)
#define OPENSSL_64_BIT
#define OPENSSL_LOONGARCH64
#elif defined(__pnacl__)
#define OPENSSL_32_BIT
#define OPENSSL_PNACL
#elif defined(__wasm__)
#define OPENSSL_32_BIT
#elif defined(__asmjs__)
#define OPENSSL_32_BIT
#elif defined(__myriad2__)
#define OPENSSL_32_BIT
#else
// Run the crypto_test binary, notably crypto/compiler_test.cc, before adding
// a new architecture.
#error "Unknown target CPU"
#endif
#if defined(__APPLE__)
#define OPENSSL_APPLE
#endif
#if defined(_WIN32)
#define OPENSSL_WINDOWS
#endif
// Android baremetal aren't Linux but currently define __linux__.
// As a workaround, we exclude them here.
// We also exclude nanolibc/CrOS EC/Zephyr. nanolibc/CrOS EC/Zephyr
// sometimes build for a non-Linux target (which should not define __linux__),
// but also sometimes build for Linux. Although technically running in Linux
// userspace, this lacks all the libc APIs we'd normally expect on Linux, so we
// treat it as a non-Linux target.
//
// TODO(b/291101350): Remove this workaround once Android baremetal no longer
// defines it.
#if defined(__linux__) && \
!defined(ANDROID_BAREMETAL) && !defined(OPENSSL_NANOLIBC) && \
!defined(CROS_EC) && !defined(CROS_ZEPHYR)
#define OPENSSL_LINUX
#endif
// nanolibc is a particular minimal libc implementation. Defining this on any
// other platform is not supported. Other embedded platforms must introduce
// their own defines.
#if defined(OPENSSL_NANOLIBC)
#define OPENSSL_NO_FILESYSTEM
#define OPENSSL_NO_POSIX_IO
#define OPENSSL_NO_SOCK
#define OPENSSL_NO_THREADS_CORRUPT_MEMORY_AND_LEAK_SECRETS_IF_THREADED
#endif
// Android baremetal is an embedded target that uses a subset of bionic.
// Defining this on any other platform is not supported. Other embedded
// platforms must introduce their own defines.
#if defined(ANDROID_BAREMETAL)
#define OPENSSL_NO_FILESYSTEM
#define OPENSSL_NO_POSIX_IO
#define OPENSSL_NO_SOCK
#define OPENSSL_NO_THREADS_CORRUPT_MEMORY_AND_LEAK_SECRETS_IF_THREADED
#endif
// CROS_EC is an embedded target for ChromeOS Embedded Controller. Defining
// this on any other platform is not supported. Other embedded platforms must
// introduce their own defines.
//
// https://chromium.googlesource.com/chromiumos/platform/ec/+/HEAD/README.md
#if defined(CROS_EC)
#define OPENSSL_NO_FILESYSTEM
#define OPENSSL_NO_POSIX_IO
#define OPENSSL_NO_SOCK
#define OPENSSL_NO_THREADS_CORRUPT_MEMORY_AND_LEAK_SECRETS_IF_THREADED
#endif
// CROS_ZEPHYR is an embedded target for ChromeOS Zephyr Embedded Controller.
// Defining this on any other platform is not supported. Other embedded
// platforms must introduce their own defines.
//
// https://chromium.googlesource.com/chromiumos/platform/ec/+/HEAD/docs/zephyr/README.md
#if defined(CROS_ZEPHYR)
#define OPENSSL_NO_FILESYSTEM
#define OPENSSL_NO_POSIX_IO
#define OPENSSL_NO_SOCK
#define OPENSSL_NO_THREADS_CORRUPT_MEMORY_AND_LEAK_SECRETS_IF_THREADED
#endif
#if defined(__ANDROID_API__)
#define OPENSSL_ANDROID
#endif
#if defined(__FreeBSD__)
#define OPENSSL_FREEBSD
#endif
#if defined(__OpenBSD__)
#define OPENSSL_OPENBSD
#endif
// BoringSSL requires platform's locking APIs to make internal global state
// thread-safe, including the PRNG. On some single-threaded embedded platforms,
// locking APIs may not exist, so this dependency may be disabled with the
// following build flag.
//
// IMPORTANT: Doing so means the consumer promises the library will never be
// used in any multi-threaded context. It causes BoringSSL to be globally
// thread-unsafe. Setting it inappropriately will subtly and unpredictably
// corrupt memory and leak secret keys.
//
// Do not set this flag on any platform where threads are possible. BoringSSL
// maintainers will not provide support for any consumers that do so. Changes
// which break such unsupported configurations will not be reverted.
#if !defined(OPENSSL_NO_THREADS_CORRUPT_MEMORY_AND_LEAK_SECRETS_IF_THREADED)
#define OPENSSL_THREADS
#endif
#if defined(BORINGSSL_UNSAFE_FUZZER_MODE) && \
!defined(BORINGSSL_UNSAFE_DETERMINISTIC_MODE)
#define BORINGSSL_UNSAFE_DETERMINISTIC_MODE
#endif
#if defined(__has_feature)
#if __has_feature(address_sanitizer)
#define OPENSSL_ASAN
#endif
#if __has_feature(thread_sanitizer)
#define OPENSSL_TSAN
#endif
#if __has_feature(memory_sanitizer)
#define OPENSSL_MSAN
#define OPENSSL_ASM_INCOMPATIBLE
#endif
#if __has_feature(hwaddress_sanitizer)
#define OPENSSL_HWASAN
#endif
#endif
// Disable 32-bit Arm assembly on Apple platforms. The last iOS version that
// supported 32-bit Arm was iOS 10.
#if defined(OPENSSL_APPLE) && defined(OPENSSL_ARM)
#define OPENSSL_ASM_INCOMPATIBLE
#endif
#if defined(OPENSSL_ASM_INCOMPATIBLE)
#undef OPENSSL_ASM_INCOMPATIBLE
#if !defined(OPENSSL_NO_ASM)
#define OPENSSL_NO_ASM
#endif
#endif // OPENSSL_ASM_INCOMPATIBLE
#endif // OPENSSL_HEADER_TARGET_H