commit 3e1478f866e66d74e7314635aa49448e023b8d27
author Alex Bradbury <asb@lowrisc.org> Sat Feb 03 11:56:11 2018 +0000
committer Alex Bradbury <asb@lowrisc.org> Sat Feb 03 11:56:11 2018 +0000
tree 07faf5002723c5c6325f7585badad487bc355c95
parent a43ba2d84f23e95b28fe22daafe7c056a20f8ba2

[RISCV] Create a LinuxTargetInfo when targeting Linux

Previously, RISCV32TargetInfo or RISCV64TargetInfo were created 
unconditionally. Use LinuxTargetInfo<RISCV??TargetInfo> to ensure that the 
proper OS-specific defines are present.

This patch only adds logic to instantiate LinuxTargetInfo and leaves a TODO, 
as I'm reluctant to add logic for other targets (e.g. FreeBSD, RTEMS) until 
I've produced and tested at least one binary for that OS+target combo.

Thanks to @mgrang to reporting the issue.

llvm-svn: 324170

clang/test/Preprocessor/init.c

diff --git a/clang/test/Preprocessor/init.c b/clang/test/Preprocessor/init.c
index 5f3fe7a..708410e 100644
--- a/clang/test/Preprocessor/init.c
+++ b/clang/test/Preprocessor/init.c
@@ -10005,6 +10005,8 @@
 
 // RUN: %clang_cc1 -E -dM -ffreestanding -triple=riscv32 < /dev/null \
 // RUN:   | FileCheck -match-full-lines -check-prefix=RISCV32 %s
+// RUN: %clang_cc1 -E -dM -ffreestanding -triple=riscv32-unknown-linux < /dev/null \
+// RUN:   | FileCheck -match-full-lines -check-prefixes=RISCV32,RISCV32-LINUX %s
 // RISCV32: #define _ILP32 1
 // RISCV32: #define __ATOMIC_ACQUIRE 2
 // RISCV32: #define __ATOMIC_ACQ_REL 4
@@ -10196,13 +10198,22 @@
 // RISCV32: #define __WINT_TYPE__ unsigned int
 // RISCV32: #define __WINT_UNSIGNED__ 1
 // RISCV32: #define __WINT_WIDTH__ 32
+// RISCV32-LINUX: #define __gnu_linux__ 1
+// RISCV32-LINUX: #define __linux 1
+// RISCV32-LINUX: #define __linux__ 1
 // RISCV32: #define __riscv 1
 // RISCV32: #define __riscv_cmodel_medlow 1
 // RISCV32: #define __riscv_float_abi_soft 1
 // RISCV32: #define __riscv_xlen 32
+// RISCV32-LINUX: #define __unix 1
+// RISCV32-LINUX: #define __unix__ 1
+// RISCV32-LINUX: #define linux 1
+// RISCV32-LINUX: #define unix 1
 
 // RUN: %clang_cc1 -E -dM -ffreestanding -triple=riscv64 < /dev/null \
 // RUN:   | FileCheck -match-full-lines -check-prefix=RISCV64 %s
+// RUN: %clang_cc1 -E -dM -ffreestanding -triple=riscv64-unknown-linux < /dev/null \
+// RUN:   | FileCheck -match-full-lines -check-prefixes=RISCV64,RISCV64-LINUX %s
 // RISCV64: #define _LP64 1
 // RISCV64: #define __ATOMIC_ACQUIRE 2
 // RISCV64: #define __ATOMIC_ACQ_REL 4
@@ -10394,7 +10405,14 @@
 // RISCV64: #define __WINT_TYPE__ unsigned int
 // RISCV64: #define __WINT_UNSIGNED__ 1
 // RISCV64: #define __WINT_WIDTH__ 32
+// RISCV64-LINUX: #define __gnu_linux__ 1
+// RISCV64-LINUX: #define __linux 1
+// RISCV64-LINUX: #define __linux__ 1
 // RISCV64: #define __riscv 1
 // RISCV64: #define __riscv_cmodel_medlow 1
 // RISCV64: #define __riscv_float_abi_soft 1
 // RISCV64: #define __riscv_xlen 64
+// RISCV64-LINUX: #define __unix 1
+// RISCV64-LINUX: #define __unix__ 1
+// RISCV64-LINUX: #define linux 1
+// RISCV64-LINUX: #define unix 1