mirror of
https://github.com/apple/swift.git
synced 2026-06-20 15:42:51 +02:00
Doug Gregor
ae1e3d0865
The new library, swiftEmbeddedPlatformPOSIX, implements all of the _swift_XYZ functions needed to support Embedded Swift as shims on top of a POSIX system that provides posix_memalign, free, putchar, and so on. This offers an easier way to bridge between the prior ad hoc requirements of Embedded Swift and the newer platform abstraction layer. Part of rdar://164057124
84 lines
2.2 KiB
Swift
84 lines
2.2 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: split-file %s %t
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// RUN: %target-swift-frontend -parse-as-library -enable-experimental-feature Extern -enable-experimental-feature Embedded %t/test.swift -c -o %t/a.o
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// RUN: %llvm-nm --undefined-only --format=just-symbols %t/a.o | sort | tee %t/actual-dependencies.txt
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// Fail if there is any entry in actual-dependencies.txt that's not in allowed-dependencies.txt
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// RUN: %if OS=linux-gnu %{ comm -13 %t/allowed-dependencies_linux.txt %t/actual-dependencies.txt > %t/extra.txt %} %else %{ comm -13 %t/allowed-dependencies_macos.txt %t/actual-dependencies.txt > %t/extra.txt %}
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// RUN: test ! -s %t/extra.txt
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// Expects the POSIX-based dependencies, not the Embedded Swift platform ones.
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// XFAIL: swift_embedded_platform
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//--- allowed-dependencies_macos.txt
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___stack_chk_fail
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___stack_chk_guard
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_free
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_memmove
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_memset
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_posix_memalign
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_putchar
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//--- allowed-dependencies_linux.txt
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__stack_chk_fail
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__stack_chk_guard
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free
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memmove
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memset
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posix_memalign
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putchar
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//--- test.swift
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// RUN: %target-clang -x c -c %S/Inputs/print.c -o %t/print.o
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// RUN: %target-clang %t/a.o %t/print.o -o %t/a.out
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// RUN: %target-run %t/a.out | %FileCheck %s
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// REQUIRES: swift_in_compiler
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// REQUIRES: executable_test
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// REQUIRES: optimized_stdlib
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// REQUIRES: OS=macosx || OS=linux-gnu
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// REQUIRES: swift_feature_Embedded
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// REQUIRES: swift_feature_Extern
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// UNSUPPORTED: OS=linux-gnu && CPU=aarch64
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@_extern(c, "putchar")
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@discardableResult
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func putchar(_: CInt) -> CInt
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public func print(_ s: StaticString, terminator: StaticString = "\n") {
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var p = s.utf8Start
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while p.pointee != 0 {
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putchar(CInt(p.pointee))
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p += 1
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}
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p = terminator.utf8Start
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while p.pointee != 0 {
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putchar(CInt(p.pointee))
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p += 1
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}
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}
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class MyClass {
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func foo() { print("MyClass.foo") }
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}
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class MySubClass: MyClass {
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override func foo() { print("MySubClass.foo") }
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}
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@main
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struct Main {
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static var objects: [MyClass] = []
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static func main() {
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print("Hello Embedded Swift!")
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// CHECK: Hello Embedded Swift!
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objects.append(MyClass())
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objects.append(MySubClass())
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for o in objects {
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o.foo()
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}
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// CHECK: MyClass.foo
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// CHECK: MySubClass.foo
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}
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}
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