A user submitted the attached patch for partial support for arm64 on
Debian/Ubuntu. It only enables cgc, 3m still hangs during compilation.
If the patch makes sense to you, perhaps you'd like to apply it
upstream.
d
>From 7b5acfba9a1df00f0427d1d2e1a92570da3ab2d1 Mon Sep 17 00:00:00 2001
From: Yvan Roux <yvan.r...@linaro.org>
Date: Wed, 23 Jan 2013 23:15:57 +0400
Subject: [PATCH] Add AArch64 (64-bit ARM) target support
* include/private/gcconfig.h (AARCH64): New macro (defined only if
__aarch64__).
* include/private/gcconfig.h (mach_type_known): Update comment adding
ARM AArch64 target.
* include/private/gcconfig.h (NOSYS, mach_type_known, CPP_WORDSZ,
MACH_TYPE, ALIGNMENT, HBLKSIZE, OS_TYPE, LINUX_STACKBOTTOM,
DYNAMIC_LOADING, DATASTART, DATAEND, STACKBOTTOM): Define for AArch64.
---
include/private/gcconfig.h | 37 +++++++++++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)
--- a/src/racket/gc/include/private/gcconfig.h
+++ b/src/racket/gc/include/private/gcconfig.h
@@ -76,6 +76,13 @@
# 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) && !defined(OPENBSD)
@@ -249,6 +256,10 @@
# 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
@@ -529,6 +540,7 @@
/* running Amdahl UTS4 */
/* S390 ==> 390-like machine */
/* running LINUX */
+ /* AARCH64 ==> ARM AArch64 */
/* ARM32 ==> Intel StrongARM */
/* IA64 ==> Intel IPF */
/* (e.g. Itanium) */
@@ -1818,6 +1830,31 @@
# 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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