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| author | Akira Hatanaka <ahatanaka@apple.com> | 2016-05-05 01:41:07 +0000 |
|---|---|---|
| committer | Akira Hatanaka <ahatanaka@apple.com> | 2016-05-05 01:41:07 +0000 |
| commit | e42181315c06c37254844b3e0cfcef7b54808ce5 (patch) | |
| tree | 195752c550fa4a30bd8d16b0d908373cfe01af42 | |
| parent | 8c21be6b3e55d172212a69264deb43dea7c706c3 (diff) | |
| download | bcm5719-llvm-e42181315c06c37254844b3e0cfcef7b54808ce5.tar.gz bcm5719-llvm-e42181315c06c37254844b3e0cfcef7b54808ce5.zip | |
Do not add uwtable attribute by default for MachO targets.
r217178 changed clang to add function attribute uwtable by default on
Win64, which caused the __eh_frame section to be emitted by default.
This commit restores the previous behavior for MachO targets.
rdar://problem/25282627
llvm-svn: 268589
| -rw-r--r-- | clang/lib/Driver/MSVCToolChain.cpp | 5 | ||||
| -rw-r--r-- | clang/test/Driver/win-macho-unwind.c | 4 |
2 files changed, 9 insertions, 0 deletions
diff --git a/clang/lib/Driver/MSVCToolChain.cpp b/clang/lib/Driver/MSVCToolChain.cpp index 7f84d1f9d94..acfb507fea5 100644 --- a/clang/lib/Driver/MSVCToolChain.cpp +++ b/clang/lib/Driver/MSVCToolChain.cpp @@ -71,6 +71,11 @@ bool MSVCToolChain::IsUnwindTablesDefault() const { // Emit unwind tables by default on Win64. All non-x86_32 Windows platforms // such as ARM and PPC actually require unwind tables, but LLVM doesn't know // how to generate them yet. + + // Don't emit unwind tables by default for MachO targets. + if (getTriple().isOSBinFormatMachO()) + return false; + return getArch() == llvm::Triple::x86_64; } diff --git a/clang/test/Driver/win-macho-unwind.c b/clang/test/Driver/win-macho-unwind.c new file mode 100644 index 00000000000..a2895d2fe8c --- /dev/null +++ b/clang/test/Driver/win-macho-unwind.c @@ -0,0 +1,4 @@ +// RUN: %clang -target x86_64-pc-win32-macho -### -S %s -o %t.s 2>&1 | FileCheck %s + +// Do not add function attribute "uwtable" for macho targets. +// CHECK-NOT: -munwind-tables |
