libunwind: document tested FreeBSD configs and sort OS list

libunwind is known to work on FreeBSD i386, amd64 (x86_64) and arm64.
It is the unwinder provided by the base system on all of those
architectures.

While here sort the OS list.

Differential Revision:	https://reviews.llvm.org/D38900

llvm-svn: 315814

diff --git a/libunwind/docs/index.rst b/libunwind/docs/index.rst
index 00155a8..a48a159 100644 (file)
--- a/libunwind/docs/index.rst
+++ b/libunwind/docs/index.rst
@@ -44,13 +44,14 @@ libunwind is known to work on the following platforms:
 ============ ==================== ============ ========================
 OS           Arch                 Compilers    Unwind Info
 ============ ==================== ============ ========================
-Mac OS X     i386, x86_64         Clang, GCC   DWARF CFI
+Any          i386, x86_64, ARM    Clang        SjLj
+Bare Metal   ARM                  Clang, GCC   EHABI
+FreeBSD      i386, x86_64, ARM64  Clang        DWARF CFI
 iOS          ARM                  Clang        SjLj
-Linux        i386, x86_64, ARM64  Clang, GCC   DWARF CFI
 Linux        ARM                  Clang, GCC   EHABI
-Bare Metal   ARM                  Clang, GCC   EHABI
+Linux        i386, x86_64, ARM64  Clang, GCC   DWARF CFI
+Mac OS X     i386, x86_64         Clang, GCC   DWARF CFI
 NetBSD       x86_64               Clang, GCC   DWARF CFI
-Any          i386, x86_64, ARM    Clang        SjLj
 ============ ==================== ============ ========================
 
 The following minimum compiler versions are strongly recommended.