From: Weiming Zhao <weimingz@codeaurora.org>
Date: Mon, 18 Apr 2016 16:25:46 +0000 (+0000)
Subject: [ARM] predefines __ELF__ macro for arm-none-eabi
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=390a8af9bfae53c8dcb7e1ed35763f6c89a3c46e;p=clang

[ARM] predefines __ELF__ macro for arm-none-eabi

Summary: predefines __ELF__ macro for arm-none-eabi

Reviewers: silviu.baranga, rengolin

Subscribers: aemerson, rengolin, cfe-commits

Differential Revision: http://reviews.llvm.org/D19225

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@266625 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index 7639b04d25..f9bc72dc79 100644
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -4847,6 +4847,10 @@ public:
     // Target identification.
     Builder.defineMacro("__arm");
     Builder.defineMacro("__arm__");
+    // For bare-metal none-eabi.
+    if (getTriple().getOS() == llvm::Triple::UnknownOS &&
+        getTriple().getEnvironment() == llvm::Triple::EABI)
+      Builder.defineMacro("__ELF__");
 
     // Target properties.
     Builder.defineMacro("__REGISTER_PREFIX__", "");
diff --git a/test/Preprocessor/init.c b/test/Preprocessor/init.c
index dbd4de605e..51af23b142 100644
--- a/test/Preprocessor/init.c
+++ b/test/Preprocessor/init.c
@@ -2162,6 +2162,9 @@
 // ARM-NETBSD:#define __arm 1
 // ARM-NETBSD:#define __arm__ 1
 
+// RUN: %clang_cc1 -E -dM -ffreestanding -triple=arm-none-eabi < /dev/null | FileCheck -match-full-lines -check-prefix ARM-NONE-EABI %s
+// ARM-NONE-EABI: #define __ELF__ 1
+
 // RUN: %clang -target arm-apple-darwin-eabi -arch armv7s -x c -E -dM %s -o - | FileCheck -match-full-lines --check-prefix=ARM-DARWIN-NO-EABI %s
 // RUN: %clang -target arm-apple-darwin-eabi -arch armv6m -x c -E -dM %s -o - | FileCheck -match-full-lines --check-prefix=ARM-DARWIN-EABI %s
 // RUN: %clang -target arm-apple-darwin-eabi -arch armv7m -x c -E -dM %s -o - | FileCheck -match-full-lines --check-prefix=ARM-DARWIN-EABI %s