[PATCH] Support __attribute__((availability)) on Android.

[Dan Albert]

Hi srhines,

REPOSITORY
  rL LLVM

http://reviews.llvm.org/D7929

Files:
  include/clang/Basic/Attr.td
  lib/Basic/Targets.cpp
  test/Sema/attr-availability-android.c

Index: include/clang/Basic/Attr.td
===================================================================
--- include/clang/Basic/Attr.td
+++ include/clang/Basic/Attr.td
@@ -440,6 +440,7 @@
   let AdditionalMembers =
 [{static llvm::StringRef getPrettyPlatformName(llvm::StringRef Platform) {
     return llvm::StringSwitch<llvm::StringRef>(Platform)
+             .Case("android", "Android")
              .Case("ios", "iOS")
              .Case("macosx", "OS X")
              .Default(llvm::StringRef());
Index: lib/Basic/Targets.cpp
===================================================================
--- lib/Basic/Targets.cpp
+++ lib/Basic/Targets.cpp
@@ -364,8 +364,13 @@
     DefineStd(Builder, "linux", Opts);
     Builder.defineMacro("__gnu_linux__");
     Builder.defineMacro("__ELF__");
-    if (Triple.getEnvironment() == llvm::Triple::Android)
+    if (Triple.getEnvironment() == llvm::Triple::Android) {
       Builder.defineMacro("__ANDROID__", "1");
+      unsigned Maj, Min, Rev;
+      Triple.getOSVersion(Maj, Min, Rev);
+      this->PlatformName = "android";
+      this->PlatformMinVersion = VersionTuple(Maj, Min, Rev);
+    }
     if (Opts.POSIXThreads)
       Builder.defineMacro("_REENTRANT");
     if (Opts.CPlusPlus)
Index: test/Sema/attr-availability-android.c
===================================================================
--- /dev/null
+++ test/Sema/attr-availability-android.c
@@ -0,0 +1,31 @@
+// RUN: %clang_cc1 "-triple" "arm-linux-androideabi16" -fsyntax-only -verify %s
+
+void f0(int) __attribute__((availability(android,introduced=14,deprecated=19)));
+void f1(int) __attribute__((availability(android,introduced=16)));
+void f2(int) __attribute__((availability(android,introduced=14,deprecated=16))); // expected-note {{'f2' has been explicitly marked deprecated here}}
+void f3(int) __attribute__((availability(android,introduced=19)));
+void f4(int) __attribute__((availability(android,introduced=9,deprecated=11,obsoleted=16), availability(ios,introduced=2.0,deprecated=3.0))); // expected-note{{explicitly marked unavailable}}
+void f5(int) __attribute__((availability(ios,introduced=3.2), availability(android,unavailable))); // expected-note{{'f5' has been explicitly marked unavailable here}}
+
+void test() {
+  f0(0);
+  f1(0);
+  f2(0); // expected-warning{{'f2' is deprecated: first deprecated in Android 16}}
+  f3(0);
+  f4(0); // expected-error{{f4' is unavailable: obsoleted in Android 16}}
+  f5(0); // expected-error{{'f5' is unavailable: not available on Android}}
+}
+
+// rdar://10535640
+
+enum {
+    foo __attribute__((availability(android,introduced=8.0,deprecated=9.0)))
+};
+
+enum {
+    bar __attribute__((availability(android,introduced=8.0,deprecated=9.0))) = foo
+};
+
+enum __attribute__((availability(android,introduced=8.0,deprecated=9.0))) {
+    bar1 = foo
+};

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