swiftlang · kubamracek · Nov 29, 2023 · Nov 28, 2023
diff --git a/cmake/modules/SwiftSetIfArchBitness.cmake b/cmake/modules/SwiftSetIfArchBitness.cmake
@@ -11,12 +11,14 @@ function(set_if_arch_bitness var_name)
      "${SIA_ARCH}" STREQUAL "x86" OR
      "${SIA_ARCH}" STREQUAL "armv5" OR
      "${SIA_ARCH}" STREQUAL "armv6" OR
+     "${SIA_ARCH}" STREQUAL "armv6m" OR
      "${SIA_ARCH}" STREQUAL "armv7" OR
      "${SIA_ARCH}" STREQUAL "armv7k" OR
      "${SIA_ARCH}" STREQUAL "arm64_32" OR
      "${SIA_ARCH}" STREQUAL "armv7m" OR
      "${SIA_ARCH}" STREQUAL "armv7em" OR
      "${SIA_ARCH}" STREQUAL "armv7s" OR
+     "${SIA_ARCH}" STREQUAL "riscv32" OR
      "${SIA_ARCH}" STREQUAL "wasm32" OR
      "${SIA_ARCH}" STREQUAL "powerpc")
     set("${var_name}" "${SIA_CASE_32_BIT}" PARENT_SCOPE)

@@ -138,7 +138,7 @@ option(SWIFT_SHOULD_BUILD_EMBEDDED_STDLIB
       "Enable build of the embedded Swift standard library and runtime"
       TRUE)
 
-if(NOT SWIFT_HOST_VARIANT STREQUAL "macosx")
+if((NOT SWIFT_HOST_VARIANT STREQUAL "macosx") AND (NOT SWIFT_HOST_VARIANT STREQUAL "linux"))
   set(SWIFT_SHOULD_BUILD_EMBEDDED_STDLIB FALSE)
 elseif(NOT SWIFT_INCLUDE_TOOLS)
   # Temporarily, only build embedded stdlib when building the compiler, to
@@ -151,12 +151,36 @@ endif()
 if(SWIFT_SHOULD_BUILD_EMBEDDED_STDLIB)
   set(EMBEDDED_STDLIB_TARGET_TRIPLES
     # arch    module_name               target triple
+    "armv6    armv6-apple-none-macho    armv6-apple-none-macho"
+    "armv6m   armv6m-apple-none-macho   armv6m-apple-none-macho"
     "armv7    armv7-apple-none-macho    armv7-apple-none-macho"
+    "armv7em  armv7em-apple-none-macho  armv7em-apple-none-macho"
     "arm64    arm64-apple-none-macho    arm64-apple-none-macho"
-    "x86_64   x86_64-apple-macos        x86_64-apple-macos10.13"
-    "arm64    arm64-apple-macos         arm64-apple-macos10.13"
-    "arm64e   arm64e-apple-macos        arm64e-apple-macos10.13"
+
+    # the following are all ELF targets
+    "armv6    armv6-none-none-eabi      armv6-none-none-eabi"
+    "armv6m   armv6m-none-none-eabi     armv6-none-none-eabi"
+    "armv7    armv7-none-none-eabi      armv7-none-none-eabi"
+    "armv7em  armv7em-none-none-eabi    armv7em-none-none-eabi"
+    "aarch64  aarch64-none-none-elf     aarch64-none-none-elf"
+    "riscv32  riscv32-none-none-eabi    riscv32-none-none-eabi"
+    "riscv64  riscv64-none-none-eabi    riscv64-none-none-eabi"
     )
+
+  if (SWIFT_HOST_VARIANT STREQUAL "linux")
+    set(EMBEDDED_STDLIB_TARGET_TRIPLES ${EMBEDDED_STDLIB_TARGET_TRIPLES}
+      "${SWIFT_HOST_VARIANT_ARCH} ${SWIFT_HOST_VARIANT_ARCH}-unknown-linux-gnu ${SWIFT_HOST_VARIANT_ARCH}-unknown-linux-gnu"
+      # In practice this expands to either:
+      # "x86_64   x86_64-unknown-linux-gnu  x86_64-unknown-linux-gnu"
+      # "aarch64  aarch64-unknown-linux-gnu aarch64-unknown-linux-gnu"
+      )
+  elseif (SWIFT_HOST_VARIANT STREQUAL "macosx")
+    set(EMBEDDED_STDLIB_TARGET_TRIPLES ${EMBEDDED_STDLIB_TARGET_TRIPLES}
+      "x86_64   x86_64-apple-macos        x86_64-apple-macos10.13"
+      "arm64    arm64-apple-macos         arm64-apple-macos10.13"
+      "arm64e   arm64e-apple-macos        arm64e-apple-macos10.13"
+      )
+  endif()
 endif()
 
 if(SWIFT_BUILD_STDLIB)

@@ -198,9 +198,18 @@ if(SWIFT_SHOULD_BUILD_EMBEDDED_STDLIB AND SWIFT_SHOULD_BUILD_EMBEDDED_CONCURRENC
     list(GET list 1 mod)
     list(GET list 2 triple)
 
-    # TODO: Only build embedded Swift Concurrency for macOS, for now.
-    if(NOT "${mod}" MATCHES "-macos$")
-      continue()
+    if (SWIFT_HOST_VARIANT STREQUAL "linux")
+      if(NOT "${mod}" MATCHES "-linux-gnu$")
+        continue()
+      endif()
+      set(extra_c_compile_flags)
+      set(extra_swift_compile_flags)
+    elseif (SWIFT_HOST_VARIANT STREQUAL "macosx")
+      if(NOT "${mod}" MATCHES "-macos$")
+        continue()
+      endif()
+      set(extra_c_compile_flags -D__MACH__ -D__APPLE__ -ffreestanding)
+      set(extra_swift_compile_flags -Xcc -D__MACH__ -Xcc -D__APPLE__ -Xcc -ffreestanding)
     endif()
 
     set(SWIFT_SDK_embedded_ARCH_${mod}_MODULE "${mod}")
@@ -242,12 +251,11 @@ if(SWIFT_SHOULD_BUILD_EMBEDDED_STDLIB AND SWIFT_SHOULD_BUILD_EMBEDDED_CONCURRENC
       TaskCancellation.swift
 
       SWIFT_COMPILE_FLAGS
-        -Xcc -D__MACH__ -Xcc -D__APPLE__ -Xcc -ffreestanding -enable-experimental-feature Embedded
+        ${extra_swift_compile_flags} -enable-experimental-feature Embedded
         -parse-stdlib -DSWIFT_CONCURRENCY_EMBEDDED
         ${SWIFT_RUNTIME_CONCURRENCY_SWIFT_FLAGS}
       C_COMPILE_FLAGS
-        -D__MACH__ -D__APPLE__ -ffreestanding
-        ${SWIFT_RUNTIME_CONCURRENCY_C_FLAGS} -DSWIFT_CONCURRENCY_EMBEDDED=1
+        ${extra_c_compile_flags} ${SWIFT_RUNTIME_CONCURRENCY_C_FLAGS} -DSWIFT_CONCURRENCY_EMBEDDED=1
       MODULE_DIR "${CMAKE_BINARY_DIR}/lib/swift/embedded"
       SDK "embedded"
       ARCHITECTURE "${mod}"

diff --git a/test/embedded/array-builtins-exec.swift b/test/embedded/array-builtins-exec.swift
@@ -6,8 +6,7 @@
 // REQUIRES: swift_in_compiler
 // REQUIRES: executable_test
 // REQUIRES: optimized_stdlib
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 import Builtin
 

diff --git a/test/embedded/array-to-pointer.swift b/test/embedded/array-to-pointer.swift
@@ -7,8 +7,7 @@
 // REQUIRES: swift_in_compiler
 // REQUIRES: executable_test
 // REQUIRES: optimized_stdlib
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 @_silgen_name("putchar")
 func putchar(_: UInt8)

diff --git a/test/embedded/array-zero-size-struct.swift b/test/embedded/array-zero-size-struct.swift
@@ -2,8 +2,7 @@
 
 // REQUIRES: swift_in_compiler
 // REQUIRES: optimized_stdlib
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 public struct MyStruct {
 }

diff --git a/test/embedded/arrays.swift b/test/embedded/arrays.swift
@@ -7,8 +7,7 @@
 // REQUIRES: swift_in_compiler
 // REQUIRES: executable_test
 // REQUIRES: optimized_stdlib
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 @_silgen_name("putchar")
 func putchar(_: UInt8)

diff --git a/test/embedded/class-func.swift b/test/embedded/class-func.swift
@@ -3,8 +3,7 @@
 // REQUIRES: swift_in_compiler
 // REQUIRES: executable_test
 // REQUIRES: optimized_stdlib
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 @main
 struct Main {

diff --git a/test/embedded/classes-arrays.swift b/test/embedded/classes-arrays.swift
@@ -6,8 +6,7 @@
 // REQUIRES: swift_in_compiler
 // REQUIRES: executable_test
 // REQUIRES: optimized_stdlib
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 class MyClass {
   init() { print("MyClass.init") }

diff --git a/test/embedded/classes-stack-promotion.swift b/test/embedded/classes-stack-promotion.swift
@@ -7,8 +7,7 @@
 // REQUIRES: swift_in_compiler
 // REQUIRES: executable_test
 // REQUIRES: optimized_stdlib
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 public class MyClass {
   public init() { print("MyClass.init") }

diff --git a/test/embedded/classes.swift b/test/embedded/classes.swift
@@ -6,8 +6,7 @@
 // REQUIRES: swift_in_compiler
 // REQUIRES: executable_test
 // REQUIRES: optimized_stdlib
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 class MyClass {
   init() { print("MyClass.init") }

diff --git a/test/embedded/closures-heap.swift b/test/embedded/closures-heap.swift
@@ -6,8 +6,7 @@
 // REQUIRES: swift_in_compiler
 // REQUIRES: executable_test
 // REQUIRES: optimized_stdlib
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 public class MyClass {
   var handler: (()->())? = nil

diff --git a/test/embedded/collection.swift b/test/embedded/collection.swift
@@ -7,8 +7,7 @@
 // REQUIRES: swift_in_compiler
 // REQUIRES: executable_test
 // REQUIRES: optimized_stdlib
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 @_silgen_name("putchar")
 func putchar(_: UInt8)

diff --git a/test/embedded/concurrency-actors.swift b/test/embedded/concurrency-actors.swift
@@ -7,7 +7,6 @@
 // REQUIRES: executable_test
 // REQUIRES: swift_in_compiler
 // REQUIRES: optimized_stdlib
-// REQUIRES: VENDOR=apple
 // REQUIRES: OS=macosx
 
 import _Concurrency

diff --git a/test/embedded/concurrency-async-let.swift b/test/embedded/concurrency-async-let.swift
@@ -7,7 +7,6 @@
 // REQUIRES: executable_test
 // REQUIRES: swift_in_compiler
 // REQUIRES: optimized_stdlib
-// REQUIRES: VENDOR=apple
 // REQUIRES: OS=macosx
 
 import _Concurrency

diff --git a/test/embedded/concurrency-builtins.swift b/test/embedded/concurrency-builtins.swift
@@ -2,7 +2,6 @@
 
 // REQUIRES: swift_in_compiler
 // REQUIRES: optimized_stdlib
-// REQUIRES: VENDOR=apple
 // REQUIRES: OS=macosx
 
 import Builtin

diff --git a/test/embedded/concurrency-simple.swift b/test/embedded/concurrency-simple.swift
@@ -7,7 +7,6 @@
 // REQUIRES: executable_test
 // REQUIRES: swift_in_compiler
 // REQUIRES: optimized_stdlib
-// REQUIRES: VENDOR=apple
 // REQUIRES: OS=macosx
 
 import _Concurrency

diff --git a/test/embedded/custom-print.swift b/test/embedded/custom-print.swift
@@ -5,8 +5,7 @@
 
 // REQUIRES: swift_in_compiler
 // REQUIRES: executable_test
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 @_silgen_name("putchar")
 func putchar(_: UInt8)

diff --git a/test/embedded/debuginfo.swift b/test/embedded/debuginfo.swift
@@ -7,8 +7,7 @@
 
 // REQUIRES: swift_in_compiler
 // REQUIRES: optimized_stdlib
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 public func foo<T>(_ array: inout [T]) {
     array.withUnsafeMutableBytes {

diff --git a/test/embedded/deserialize-vtables.swift b/test/embedded/deserialize-vtables.swift
@@ -5,8 +5,7 @@
 // REQUIRES: swift_in_compiler
 // REQUIRES: executable_test
 // REQUIRES: optimized_stdlib
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 @main
 struct Main {

diff --git a/test/embedded/dynamic-self.swift b/test/embedded/dynamic-self.swift
@@ -1,8 +1,7 @@
 // RUN: %target-swift-emit-ir %s -enable-experimental-feature Embedded -parse-as-library -module-name main | %FileCheck %s
 
 // REQUIRES: swift_in_compiler
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 class MyClass {
      init() {

diff --git a/test/embedded/fno-builtin.swift b/test/embedded/fno-builtin.swift
@@ -3,8 +3,7 @@
 
 // REQUIRES: swift_in_compiler
 // REQUIRES: optimized_stdlib
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 public func foo() -> [Int] {
 	var a = [1, 2, 3]

diff --git a/test/embedded/generic-classes-debuginfo.swift b/test/embedded/generic-classes-debuginfo.swift
@@ -3,8 +3,7 @@
 
 // REQUIRES: executable_test
 // REQUIRES: optimized_stdlib
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 struct User {
   let o: BaseClass

diff --git a/test/embedded/generic-classes.swift b/test/embedded/generic-classes.swift
@@ -4,8 +4,7 @@
 // REQUIRES: swift_in_compiler
 // REQUIRES: executable_test
 // REQUIRES: optimized_stdlib
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 protocol Fooable {
   func foo()

diff --git a/test/embedded/lto.swift b/test/embedded/lto.swift
@@ -5,7 +5,6 @@
 
 // REQUIRES: swift_in_compiler
 // REQUIRES: executable_test
-// REQUIRES: VENDOR=apple
 // REQUIRES: OS=macosx
 
 // For LTO, the linker dlopen()'s the libLTO library, which is a scenario that

diff --git a/test/embedded/metatypes.swift b/test/embedded/metatypes.swift
@@ -2,8 +2,7 @@
 
 // REQUIRES: swift_in_compiler
 // REQUIRES: optimized_stdlib
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 public func sink<T>(t: T) {}
 

diff --git a/test/embedded/modules-classes.swift b/test/embedded/modules-classes.swift
@@ -9,8 +9,7 @@
 
 // REQUIRES: swift_in_compiler
 // REQUIRES: executable_test
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 // BEGIN MyModule.swift
 

diff --git a/test/embedded/modules-globals-exec.swift b/test/embedded/modules-globals-exec.swift
@@ -9,8 +9,7 @@
 
 // REQUIRES: swift_in_compiler
 // REQUIRES: executable_test
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 // BEGIN MyModule.swift
 

diff --git a/test/embedded/modules-globals-many.swift b/test/embedded/modules-globals-many.swift
@@ -7,8 +7,7 @@
 // RUN: %target-swift-frontend -emit-ir -I %t %t/Main.swift -enable-experimental-feature Embedded -parse-as-library | %FileCheck %s
 
 // REQUIRES: swift_in_compiler
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 // Dependencies look like this:
 //
@@ -44,4 +43,4 @@ public func main() {
   MyModuleC.foo()
 }
 
-// CHECK: @"$s9MyModuleA6globalSivp" = global %TSi zeroinitializer
+// CHECK: @"$s9MyModuleA6globalSivp" = {{.*}}global %TSi zeroinitializer
diff --git a/test/embedded/modules-globals.swift b/test/embedded/modules-globals.swift
@@ -5,8 +5,7 @@
 // RUN: %target-swift-frontend -emit-ir -I %t %t/Main.swift -enable-experimental-feature Embedded -parse-as-library | %FileCheck %s
 
 // REQUIRES: swift_in_compiler
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 // BEGIN MyModule.swift
 
@@ -31,7 +30,7 @@ public func main() {
   foo()
 }
 
-// CHECK: @"$s4Main022global_in_client_used_c1_D0Sivp" = global %TSi zeroinitializer
-// CHECK: @"$s4Main024global_in_client_unused_c1_D0Sivp" = global %TSi zeroinitializer
-// CHECK: @"$s8MyModule022global_in_module_used_d1_E0Sivp" = global %TSi zeroinitializer
-// CHECK: @"$s8MyModule024global_in_module_unused_d1_E0Sivp" = global %TSi zeroinitializer
+// CHECK: @"$s4Main022global_in_client_used_c1_D0Sivp" = {{.*}}global %TSi zeroinitializer
+// CHECK: @"$s4Main024global_in_client_unused_c1_D0Sivp" = {{.*}}global %TSi zeroinitializer
+// CHECK: @"$s8MyModule022global_in_module_used_d1_E0Sivp" = {{.*}}global %TSi zeroinitializer
+// CHECK: @"$s8MyModule024global_in_module_unused_d1_E0Sivp" = {{.*}}global %TSi zeroinitializer
diff --git a/test/embedded/modules-print-exec.swift b/test/embedded/modules-print-exec.swift
@@ -9,8 +9,7 @@
 
 // REQUIRES: swift_in_compiler
 // REQUIRES: executable_test
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 // BEGIN MyModule.swift
 

diff --git a/test/embedded/no-autolink.swift b/test/embedded/no-autolink.swift
@@ -1,8 +1,7 @@
 // RUN: %target-swift-frontend -emit-ir %s -enable-experimental-feature Embedded | %FileCheck %s
 
 // REQUIRES: swift_in_compiler
-// REQUIRES: VENDOR=apple
-// REQUIRES: OS=macosx
+// REQUIRES: OS=macosx || OS=linux-gnu
 
 public func staticstring() -> StaticString {
   return "hello"