runtime, syscall: use SYSCALL instruction on FreeBSD.
This manually reverts 555da73 from #6372 which implies a
minimum FreeBSD version of 8-STABLE.
Updates docs to mention new minimum requirement.
Fixes #9627
Change-Id: I40ae64be3682d79dd55024e32581e3e5e2be8aa7
Reviewed-on: https://go-review.googlesource.com/3020
Reviewed-by: Minux Ma <minux@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
diff --git a/doc/install.html b/doc/install.html
index 9561fdd..8c9322f 100644
--- a/doc/install.html
+++ b/doc/install.html
@@ -14,9 +14,10 @@
<p>
<a href="https://golang.org/dl/" target="_blank">Official binary
-distributions</a> are available for the FreeBSD (release 8 and above), Linux, Mac OS X (Snow Leopard
-and above), and Windows operating systems and the 32-bit (<code>386</code>) and
-64-bit (<code>amd64</code>) x86 processor architectures.
+distributions</a> are available for the FreeBSD (release 8-STABLE and above),
+Linux, Mac OS X (Snow Leopard and above), and Windows operating systems and
+the 32-bit (<code>386</code>) and 64-bit (<code>amd64</code>) x86 processor
+architectures.
</p>
<p>
@@ -44,7 +45,7 @@
<th align="center">Notes</th>
</tr>
<tr><td colspan="3"><hr></td></tr>
-<tr><td>FreeBSD 8 or later</td> <td>amd64, 386, arm</td> <td>Debian GNU/kFreeBSD not supported; FreeBSD/ARM needs FreeBSD 10 or later</td></tr>
+<tr><td>FreeBSD 8-STABLE or later</td> <td>amd64, 386, arm</td> <td>Debian GNU/kFreeBSD not supported; FreeBSD/ARM needs FreeBSD 10 or later</td></tr>
<tr><td>Linux 2.6.23 or later with glibc</td> <td>amd64, 386, arm</td> <td>CentOS/RHEL 5.x not supported; no binary distribution for ARM yet</td></tr>
<tr><td>Mac OS X 10.6 or later</td> <td>amd64, 386</td> <td>use the gcc<sup>†</sup> that comes with Xcode<sup>‡</sup></td></tr>
<tr><td>Windows XP or later</td> <td>amd64, 386</td> <td>use MinGW gcc<sup>†</sup>. No need for cygwin or msys.</td></tr>
