| | 1 | /* |
| | 2 | * Copyright (c) 2007, 2008, 2011-2013 Apple Inc. All rights reserved. |
| | 3 | * |
| | 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
| | 5 | * |
| | 6 | * This file contains Original Code and/or Modifications of Original Code |
| | 7 | * as defined in and that are subject to the Apple Public Source License |
| | 8 | * Version 2.0 (the 'License'). You may not use this file except in |
| | 9 | * compliance with the License. The rights granted to you under the License |
| | 10 | * may not be used to create, or enable the creation or redistribution of, |
| | 11 | * unlawful or unlicensed copies of an Apple operating system, or to |
| | 12 | * circumvent, violate, or enable the circumvention or violation of, any |
| | 13 | * terms of an Apple operating system software license agreement. |
| | 14 | * |
| | 15 | * Please obtain a copy of the License at |
| | 16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
| | 17 | * |
| | 18 | * The Original Code and all software distributed under the License are |
| | 19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
| | 20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| | 21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
| | 22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| | 23 | * Please see the License for the specific language governing rights and |
| | 24 | * limitations under the License. |
| | 25 | * |
| | 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
| | 27 | */ |
| | 28 | |
| | 29 | // This is the only C file compiled into Libsystem when building for i386. |
| | 30 | // We use EXCLUDED_ and INCLUDED_SOURCE_FILES in the xcconfig to accomplish |
| | 31 | // this. |
| | 32 | // |
| | 33 | // i386 is no longer a supported architecture for macOS. The kernel doesn’t run |
| | 34 | // i386 macOS executables. However, we cannot completely remove the i386 |
| | 35 | // slice from libSystem.B.dylib. In order to support the watchOS Simulator, |
| | 36 | // macOS includes several libraries with i386 slices. The watchOS Simulator |
| | 37 | // uses the i386 ISA with a different Mach-O platform and its own entire set |
| | 38 | // of system libraries. Some of those libraries (including those from the clang/ |
| | 39 | // llvm project) verify that the compiler works by compiling and linking a |
| | 40 | // simple executable. That would fail if Libsystem lacked an i386 slice. |
| | 41 | // So, we will preserve a vestigial i386 slice, but no executables can actually |
| | 42 | // use it to run. |
| | 43 | // rdar://problem/59703537 |
| | 44 | |
| | 45 | #include <TargetConditionals.h> |
| | 46 | |
| | 47 | #if !defined(__i386__) || !defined(TARGET_OS_OSX) || (TARGET_OS_OSX == 0) |
| | 48 | #error "This file should not be built for this environment" |
| | 49 | #endif // !defined(__i386__) || !defined(TARGET_OS_OSX) || (TARGET_OS_OSX == 0) |
| | 50 | |
| | 51 | #include <sys/reason.h> |
| | 52 | |
| | 53 | struct ProgramVars; |
| | 54 | |
| | 55 | __attribute__((constructor)) |
| | 56 | static void |
| | 57 | libSystem_initializer(int argc __attribute__((unused)), |
| | 58 | const char* argv[] __attribute__((unused)), |
| | 59 | const char* envp[] __attribute__((unused)), |
| | 60 | const char* apple[] __attribute__((unused)), |
| | 61 | const struct ProgramVars* vars __attribute__((unused))) |
| | 62 | { |
| | 63 | abort_with_reason(OS_REASON_LIBSYSTEM, 386, |
| | 64 | "i386 is not supported on macOS", |
| | 65 | OS_REASON_FLAG_CONSISTENT_FAILURE); |
| | 66 | } |
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