From c031b41b783cc99c0bd5aac7d14c1d6e34520397 Mon Sep 17 00:00:00 2001
From: Justus Winter <4winter@informatik.uni-hamburg.de>
Date: Sat, 3 May 2014 01:33:14 +0200
Subject: i386: use ACPI to power off the machine

This is a mostly verbatim copy of acpihalt.c from GRUB2 with a little
bit of glue code.

* i386/Makefrag.am (libkernel_a_SOURCES): Add the new files.
* i386/grub/acpi.h: Verbatim copy from GRUB2.
* i386/grub/compiler.h: Likewise.
* i386/grub/cpu/io.h: Likewise.
* i386/grub/cpu/time.h: Likewise.
* i386/grub/cpu/types.h: Likewise.
* i386/grub/err.h: Likewise.
* i386/grub/misc.h: Likewise.
* i386/grub/mm.h: Likewise.
* i386/grub/symbol.h: Likewise.
* i386/grub/time.h: Likewise.
* i386/grub/types.h: Likewise.
* i386/i386at/acpi.c: Likewise.
* i386/i386at/acpihalt.c: Likewise.
(grub_acpi_halt): Map physical addresses.
* i386/i386at/acpihalt.h: New file.
* i386/grub/glue.h: Some glue macros.
* i386/grub/i18n.h: Stub out i18n.
* i386/i386at/grub_glue.c: Some glue code.
* i386/i386at/model_dep.c (halt_all_cpus): Use grub_acpi_halt.
---
 i386/grub/symbol.h | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 i386/grub/symbol.h

(limited to 'i386/grub/symbol.h')

diff --git a/i386/grub/symbol.h b/i386/grub/symbol.h
new file mode 100644
index 0000000..ed19f70
--- /dev/null
+++ b/i386/grub/symbol.h
@@ -0,0 +1,72 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 1999,2000,2001,2002,2006,2007,2008,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_SYMBOL_HEADER
+#define GRUB_SYMBOL_HEADER	1
+
+#include <config.h>
+
+/* Apple assembler requires local labels to start with a capital L */
+#define LOCAL(sym)	L_ ## sym
+
+/* Add an underscore to a C symbol in assembler code if needed. */
+#ifndef GRUB_UTIL
+
+#ifdef __APPLE__
+#define MACRO_DOLLAR(x) $$ ## x
+#else
+#define MACRO_DOLLAR(x) $ ## x
+#endif
+
+#if HAVE_ASM_USCORE
+#ifdef ASM_FILE
+# define EXT_C(sym)	_ ## sym
+#else
+# define EXT_C(sym)	"_" sym
+#endif
+#else
+# define EXT_C(sym)	sym
+#endif
+
+#ifdef __arm__
+#define END .end
+#endif
+
+#if defined (__APPLE__)
+#define FUNCTION(x)	.globl EXT_C(x) ; EXT_C(x):
+#define VARIABLE(x)	.globl EXT_C(x) ; EXT_C(x):
+#elif defined (__CYGWIN__) || defined (__MINGW32__)
+/* .type not supported for non-ELF targets.  XXX: Check this in configure? */
+#define FUNCTION(x)	.globl EXT_C(x) ; .def EXT_C(x); .scl 2; .type 32; .endef; EXT_C(x):
+#define VARIABLE(x)	.globl EXT_C(x) ; .def EXT_C(x); .scl 2; .type 0; .endef; EXT_C(x):
+#elif defined (__arm__)
+#define FUNCTION(x)	.globl EXT_C(x) ; .type EXT_C(x), %function ; EXT_C(x):
+#define VARIABLE(x)	.globl EXT_C(x) ; .type EXT_C(x), %object ; EXT_C(x):
+#else
+#define FUNCTION(x)	.globl EXT_C(x) ; .type EXT_C(x), @function ; EXT_C(x):
+#define VARIABLE(x)	.globl EXT_C(x) ; .type EXT_C(x), @object ; EXT_C(x):
+#endif
+#endif
+
+/* Mark an exported symbol.  */
+#ifndef GRUB_SYMBOL_GENERATOR
+# define EXPORT_FUNC(x)	x
+# define EXPORT_VAR(x)	x
+#endif /* ! GRUB_SYMBOL_GENERATOR */
+
+#endif /* ! GRUB_SYMBOL_HEADER */
-- 
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