grub/include/grub/symbol.h
2013-05-03 14:41:08 +02:00

59 lines
1.9 KiB
C

/*
* 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
#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
#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__)
#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
/* .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):
#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 */