From 1240658b92c0827ace6f9ac52b3425070eed948f Mon Sep 17 00:00:00 2001
From: Chris Metcalf <cmetcalf@mellanox.com>
Date: Tue, 10 May 2016 11:04:53 +0300
Subject: [PATCH] Support (add machine description for) TILE-Gx and TILEPro
 targets

This patch is an updated version of the CentOS 6 patch that we have
been carrying as part of our own CentOS-like distribution since 2012.

* include/private/gcconfig.h (TILEGX, TILEPRO) [__tile__]: New macro.
* include/private/gcconfig.h (mach_type_known, CPP_WORDSZ, MACH_TYPE,
ALIGNMENT, ALIGN_DOUBLE, PREFETCH, CACHE_LINE_SIZE,
USE_GENERIC_PUSH_REGS, OS_TYPE, __data_start, DATASTART,
LINUX_STACKBOTTOM, DYNAMIC_LOADING, ALIGNMENT): Define for TILEGX and
TILEPRO.
---
 include/private/gcconfig.h | 48 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/include/private/gcconfig.h b/include/private/gcconfig.h
index 760f8962..f4935b4f 100644
--- a/include/private/gcconfig.h
+++ b/include/private/gcconfig.h
@@ -574,6 +574,14 @@
 #    define HEXAGON
 #    define mach_type_known
 # endif
+# if defined(__tile__) && defined(LINUX)
+#   ifdef __tilegx__
+#     define TILEGX
+#   else
+#     define TILEPRO
+#   endif
+#   define mach_type_known
+# endif
 
 # if defined(SYMBIAN)
 #   define mach_type_known
@@ -635,6 +643,8 @@
                     /*             CRIS       ==> Axis Etrax            */
                     /*             M32R       ==> Renesas M32R          */
                     /*             HEXAGON    ==> Qualcomm Hexagon      */
+                    /*             TILEPRO    ==> Tilera TILEPro        */
+                    /*             TILEGX     ==> Tilera TILE-Gx        */
 
 
 /*
@@ -2572,6 +2582,44 @@
 #   endif
 # endif
 
+# ifdef TILEPRO
+#   define CPP_WORDSZ 32
+#   define MACH_TYPE "TILEPro"
+#   define ALIGNMENT 4
+#   define ALIGN_DOUBLE
+#   define PREFETCH(x) __insn_prefetch(x)
+#   define CACHE_LINE_SIZE 64
+#   define USE_GENERIC_PUSH_REGS
+#   ifdef LINUX
+#     define OS_TYPE "LINUX"
+      extern int __data_start[];
+#     define DATASTART ((ptr_t)__data_start)
+#     define LINUX_STACKBOTTOM
+#     define DYNAMIC_LOADING
+#   endif
+# endif
+
+# ifdef TILEGX
+#   define CPP_WORDSZ (__SIZEOF_POINTER__ * 8)
+#   define MACH_TYPE "TILE-Gx"
+#   define ALIGNMENT __SIZEOF_POINTER__
+#   if CPP_WORDSZ < 64
+#     define ALIGN_DOUBLE /* Guarantee 64-bit alignment for allocations. */
+      /* Take advantage of 64-bit stores. */
+#     define CLEAR_DOUBLE(x) (*(long long *)(x) = 0)
+#   endif
+#   define PREFETCH(x) __insn_prefetch_l1(x)
+#   define CACHE_LINE_SIZE 64
+#   define USE_GENERIC_PUSH_REGS
+#   ifdef LINUX
+#     define OS_TYPE "LINUX"
+      extern int __data_start[];
+#     define DATASTART ((ptr_t)__data_start)
+#     define LINUX_STACKBOTTOM
+#     define DYNAMIC_LOADING
+#   endif
+# endif
+
 #if defined(__GLIBC__) && !defined(DONT_USE_LIBC_PRIVATES)
   /* Use glibc's stack-end marker. */
 # define USE_LIBC_PRIVATES
-- 
2.40.0