BURG-grub2/include/grub/symbol.h

/*
 *  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. */
#ifdef HAVE_ASM_USCORE
# define EXT_C(sym)	_ ## sym
#else
# define EXT_C(sym)	sym
#endif

#define FUNCTION(x)	EXT_C(x): .globl EXT_C(x)
#define VARIABLE(x)	EXT_C(x): .globl EXT_C(x)

/* Mark an exported symbol.  */
#ifndef GRUB_SYMBOL_GENERATOR
# define EXPORT_FUNC(x)	x
# define EXPORT_VAR(x)	x
#endif /* ! GRUB_SYMBOL_GENERATOR */
#ifdef ASM_FILE

#ifdef APPLE_CC

#define GRUB_EXPORT_START	.section modattr,modattr,regular

#elif defined(__MINGW32__) || defined(__CYGWIN__)

#define GRUB_EXPORT_START	.section modattr

#else

#define GRUB_EXPORT_START	.section "modattr"

#endif

#define GRUB_EXPORT(name)	.ascii "export:",#name,"\0"
#define GRUB_EXPORT_END		.text

#else

#ifdef APPLE_CC

#define GRUB_MODATTR(name, value)	\
  __asm (".section modattr,modattr\n.asciz \"" name ":" value "\"\n.text")

#elif defined(__MINGW32__) || defined(__CYGWIN__)

#define GRUB_MODATTR(name, value)	\
  __asm (".section modattr\n.asciz \"" name ":" value "\"\n.text")

#else

#define GRUB_MODATTR(name, value)	\
  __asm (".section \"modattr\"\n.asciz \"" name ":" value "\"\n.text")

#endif

#define GRUB_EXPORT(value)	GRUB_MODATTR("export", #value)

#endif

#endif /* ! GRUB_SYMBOL_HEADER */