mirror of
https://github.com/ziglang/zig.git
synced 2025-12-10 08:13:07 +00:00
5b813f1a2a
Prior to this change we would assume the ABI for Apple targets to be GNU which could result in subtle errors in LLVM emitting calls to non-existent system libc provided functions such as `_sincosf` which is a GNU extension and as such is not provided by macOS for example. This would result in linker errors where the linker would not be able to find the said symbol in `libSystem.tbd`. With this change, we now correctly identify macOS (and other Apple platforms) as having ABI `unknown` which translates to unspecified in LLVM under-the-hood: ``` // main.ll target triple = "aarch64-unknown-macos-unknown" ``` Note however that we never suffix the target OS with target version such as `macos11` or `macos12` which means we fail to instruct LLVM of potential optimisations provided by the OS such as the availability of function `___sincosf_stret`. I suggest we investigate that in a follow-up commit.
211 lines
6.1 KiB
C
Vendored
211 lines
6.1 KiB
C
Vendored
// Copyright (c) 2009-2011 Apple Inc. All rights reserved.
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#ifndef __XPC_BASE_H__
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#define __XPC_BASE_H__
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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#if !defined(__has_include)
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#define __has_include(x) 0
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#endif // !defined(__has_include)
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#if !defined(__has_attribute)
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#define __has_attribute(x) 0
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#endif // !defined(__has_attribute)
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#if !defined(__has_feature)
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#define __has_feature(x) 0
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#endif // !defined(__has_feature)
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#if !defined(__has_extension)
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#define __has_extension(x) 0
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#endif // !defined(__has_extension)
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#if __has_include(<xpc/availability.h>)
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#include <xpc/availability.h>
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#else // __has_include(<xpc/availability.h>)
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#include <Availability.h>
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#endif // __has_include(<xpc/availability.h>)
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#ifndef __XPC_INDIRECT__
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#error "Please #include <xpc/xpc.h> instead of this file directly."
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#endif // __XPC_INDIRECT__
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#pragma mark Attribute Shims
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#ifdef __GNUC__
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#define XPC_CONSTRUCTOR __attribute__((constructor))
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#define XPC_NORETURN __attribute__((__noreturn__))
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#define XPC_NOTHROW __attribute__((__nothrow__))
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#define XPC_NONNULL1 __attribute__((__nonnull__(1)))
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#define XPC_NONNULL2 __attribute__((__nonnull__(2)))
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#define XPC_NONNULL3 __attribute__((__nonnull__(3)))
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#define XPC_NONNULL4 __attribute__((__nonnull__(4)))
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#define XPC_NONNULL5 __attribute__((__nonnull__(5)))
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#define XPC_NONNULL6 __attribute__((__nonnull__(6)))
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#define XPC_NONNULL7 __attribute__((__nonnull__(7)))
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#define XPC_NONNULL8 __attribute__((__nonnull__(8)))
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#define XPC_NONNULL9 __attribute__((__nonnull__(9)))
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#define XPC_NONNULL10 __attribute__((__nonnull__(10)))
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#define XPC_NONNULL11 __attribute__((__nonnull__(11)))
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#define XPC_NONNULL_ALL __attribute__((__nonnull__))
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#define XPC_SENTINEL __attribute__((__sentinel__))
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#define XPC_PURE __attribute__((__pure__))
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#define XPC_WARN_RESULT __attribute__((__warn_unused_result__))
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#define XPC_MALLOC __attribute__((__malloc__))
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#define XPC_UNUSED __attribute__((__unused__))
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#define XPC_USED __attribute__((__used__))
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#define XPC_PACKED __attribute__((__packed__))
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#define XPC_PRINTF(m, n) __attribute__((format(printf, m, n)))
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#define XPC_INLINE static __inline__ __attribute__((__always_inline__))
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#define XPC_NOINLINE __attribute__((noinline))
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#define XPC_NOIMPL __attribute__((unavailable))
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#if __has_attribute(noescape)
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#define XPC_NOESCAPE __attribute__((__noescape__))
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#else
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#define XPC_NOESCAPE
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#endif
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#if __has_extension(attribute_unavailable_with_message)
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#define XPC_UNAVAILABLE(m) __attribute__((unavailable(m)))
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#else // __has_extension(attribute_unavailable_with_message)
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#define XPC_UNAVAILABLE(m) XPC_NOIMPL
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#endif // __has_extension(attribute_unavailable_with_message)
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#define XPC_EXPORT extern __attribute__((visibility("default")))
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#define XPC_NOEXPORT __attribute__((visibility("hidden")))
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#define XPC_WEAKIMPORT extern __attribute__((weak_import))
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#define XPC_DEBUGGER_EXCL XPC_NOEXPORT XPC_USED
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#define XPC_TRANSPARENT_UNION __attribute__((transparent_union))
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#if __clang__
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#define XPC_DEPRECATED(m) __attribute__((deprecated(m)))
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#else // __clang__
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#define XPC_DEPRECATED(m) __attribute__((deprecated))
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#endif // __clang
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#if defined(__XPC_TEST__) && __XPC_TEST__
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#define XPC_TESTSTATIC
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#define XPC_TESTEXTERN extern
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#else // defined(__XPC_TEST__) && __XPC_TEST__
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#define XPC_TESTSTATIC static
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#endif // defined(__XPC_TEST__) && __XPC_TEST__
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#if __has_feature(objc_arc)
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#define XPC_GIVES_REFERENCE __strong
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#define XPC_UNRETAINED __unsafe_unretained
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#define XPC_BRIDGE(xo) ((__bridge void *)(xo))
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#define XPC_BRIDGEREF_BEGIN(xo) ((__bridge_retained void *)(xo))
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#define XPC_BRIDGEREF_BEGIN_WITH_REF(xo) ((__bridge void *)(xo))
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#define XPC_BRIDGEREF_MIDDLE(xo) ((__bridge id)(xo))
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#define XPC_BRIDGEREF_END(xo) ((__bridge_transfer id)(xo))
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#else // __has_feature(objc_arc)
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#define XPC_GIVES_REFERENCE
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#define XPC_UNRETAINED
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#define XPC_BRIDGE(xo) (xo)
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#define XPC_BRIDGEREF_BEGIN(xo) (xo)
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#define XPC_BRIDGEREF_BEGIN_WITH_REF(xo) (xo)
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#define XPC_BRIDGEREF_MIDDLE(xo) (xo)
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#define XPC_BRIDGEREF_END(xo) (xo)
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#endif // __has_feature(objc_arc)
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#define _xpc_unreachable() __builtin_unreachable()
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#else // __GNUC__
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/*! @parseOnly */
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#define XPC_CONSTRUCTOR
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/*! @parseOnly */
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#define XPC_NORETURN
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/*! @parseOnly */
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#define XPC_NOTHROW
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/*! @parseOnly */
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#define XPC_NONNULL1
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/*! @parseOnly */
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#define XPC_NONNULL2
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/*! @parseOnly */
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#define XPC_NONNULL3
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/*! @parseOnly */
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#define XPC_NONNULL4
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/*! @parseOnly */
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#define XPC_NONNULL5
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/*! @parseOnly */
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#define XPC_NONNULL6
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/*! @parseOnly */
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#define XPC_NONNULL7
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/*! @parseOnly */
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#define XPC_NONNULL8
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/*! @parseOnly */
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#define XPC_NONNULL9
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/*! @parseOnly */
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#define XPC_NONNULL10
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/*! @parseOnly */
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#define XPC_NONNULL11
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/*! @parseOnly */
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#define XPC_NONNULL(n)
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/*! @parseOnly */
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#define XPC_NONNULL_ALL
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/*! @parseOnly */
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#define XPC_SENTINEL
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/*! @parseOnly */
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#define XPC_PURE
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/*! @parseOnly */
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#define XPC_WARN_RESULT
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/*! @parseOnly */
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#define XPC_MALLOC
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/*! @parseOnly */
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#define XPC_UNUSED
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/*! @parseOnly */
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#define XPC_PACKED
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/*! @parseOnly */
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#define XPC_PRINTF(m, n)
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/*! @parseOnly */
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#define XPC_INLINE static inline
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/*! @parseOnly */
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#define XPC_NOINLINE
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/*! @parseOnly */
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#define XPC_NOIMPL
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/*! @parseOnly */
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#define XPC_EXPORT extern
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/*! @parseOnly */
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#define XPC_WEAKIMPORT
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/*! @parseOnly */
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#define XPC_DEPRECATED
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/*! @parseOnly */
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#define XPC_UNAVAILABLE(m)
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/*! @parseOnly */
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#define XPC_NOESCAPE
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#endif // __GNUC__
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#if __has_feature(assume_nonnull)
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#define XPC_ASSUME_NONNULL_BEGIN _Pragma("clang assume_nonnull begin")
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#define XPC_ASSUME_NONNULL_END _Pragma("clang assume_nonnull end")
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#else
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#define XPC_ASSUME_NONNULL_BEGIN
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#define XPC_ASSUME_NONNULL_END
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#endif
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#if __has_feature(nullability_on_arrays)
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#define XPC_NONNULL_ARRAY _Nonnull
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#else
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#define XPC_NONNULL_ARRAY
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#endif
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#ifdef OS_CLOSED_OPTIONS
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#define XPC_FLAGS_ENUM(_name, _type, ...) \
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OS_CLOSED_OPTIONS(_name, _type, __VA_ARGS__)
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#else // OS_CLOSED_ENUM
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#define XPC_FLAGS_ENUM(_name, _type, ...) \
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OS_ENUM(_name, _type, __VA_ARGS__)
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#endif // OS_CLOSED_ENUM
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#ifdef OS_CLOSED_ENUM
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#define XPC_ENUM(_name, _type, ...) \
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OS_CLOSED_ENUM(_name, _type, __VA_ARGS__)
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#else // OS_CLOSED_ENUM
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#define XPC_ENUM(_name, _type, ...) \
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OS_ENUM(_name, _type, __VA_ARGS__)
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#endif // OS_CLOSED_ENUM
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__END_DECLS
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#endif // __XPC_BASE_H__
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