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From 82f44f53b9a9766c2ec816f237506beb953eb332 Mon Sep 17 00:00:00 2001
From: Andreas Schwab <schwab@suse.de>
Date: Wed, 29 Oct 2014 14:18:28 +0100
Subject: [PATCH] Add support for aarch64
* include/private/gcconfig.h: Add support for aarch64.
---
sigscheme/libgcroots/include/private/gcconfig.h | 37 +++++++++++++++++++++++++
1 file changed, 37 insertions(+)
diff --git a/sigscheme/libgcroots/include/private/gcconfig.h b/sigscheme/libgcroots/include/private/gcconfig.h
index 4d42b03..0f13db6 100644
--- a/sigscheme/libgcroots/include/private/gcconfig.h
+++ b/sigscheme/libgcroots/include/private/gcconfig.h
@@ -62,6 +62,13 @@
# endif
/* Determine the machine type: */
+# if defined(__aarch64__)
+# define AARCH64
+# if !defined(LINUX)
+# define NOSYS
+# define mach_type_known
+# endif
+# endif
# if defined(__arm__) || defined(__thumb__)
# define ARM32
# if !defined(LINUX) && !defined(NETBSD)
@@ -231,6 +238,10 @@
# define IA64
# define mach_type_known
# endif
+# if defined(LINUX) && defined(__aarch64__)
+# define AARCH64
+# define mach_type_known
+# endif
# if defined(LINUX) && defined(__arm__)
# define ARM32
# define mach_type_known
@@ -504,6 +515,7 @@
/* running Amdahl UTS4 */
/* S390 ==> 390-like machine */
/* running LINUX */
+ /* AARCH64 ==> ARM AArch64 */
/* ARM32 ==> Intel StrongARM */
/* IA64 ==> Intel IPF */
/* (e.g. Itanium) */
@@ -1724,6 +1736,31 @@
# endif
# endif
+# ifdef AARCH64
+# define CPP_WORDSZ 64
+# define MACH_TYPE "AARCH64"
+# define ALIGNMENT 8
+# ifndef HBLKSIZE
+# define HBLKSIZE 4096
+# endif
+# ifdef LINUX
+# define OS_TYPE "LINUX"
+# define LINUX_STACKBOTTOM
+# define DYNAMIC_LOADING
+ extern int __data_start[];
+# define DATASTART ((ptr_t)__data_start)
+ extern char _end[];
+# define DATAEND ((ptr_t)(&_end))
+# endif
+# ifdef NOSYS
+ /* __data_start is usually defined in the target linker script. */
+ extern int __data_start[];
+# define DATASTART ((ptr_t)__data_start)
+ extern void *__stack_base__;
+# define STACKBOTTOM ((ptr_t)__stack_base__)
+# endif
+# endif
+
# ifdef ARM32
# define CPP_WORDSZ 32
# define MACH_TYPE "ARM32"
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