Enrico Fraccaroli
46 lines
1.9 KiB
C
46 lines
1.9 KiB
C
/// MentOS, The Mentoring Operating system project
|
|
/// @file link_access.h
|
|
/// @brief Set of macros that provide access to linking symbols.
|
|
/// @copyright (c) 2014-2021 This file is distributed under the MIT License.
|
|
/// See LICENSE.md for details.
|
|
|
|
#pragma once
|
|
|
|
#ifdef __APPLE__
|
|
#include <mach-o/getsect.h>
|
|
|
|
/// @brief Define variables pointing to external symbols, specifically
|
|
/// to the .data section of a linked object file.
|
|
#define EXTLD(NAME) extern const unsigned char _section$__DATA__##NAME[];
|
|
/// Provide access to the .data of the linked object.
|
|
#define LDVAR(NAME) _section$__DATA__##NAME
|
|
/// Provides access to the length of the .data section of the linked object.
|
|
#define LDLEN(NAME) (getsectbyname("__DATA", "__" #NAME)->size)
|
|
|
|
#elif (defined __WIN32__) // mingw
|
|
|
|
/// @brief Define variables pointing to external symbols, specifically
|
|
/// to the .data section of a linked object file.
|
|
#define EXTLD(NAME) \
|
|
extern const unsigned char binary_##NAME##_start[]; \
|
|
extern const unsigned char binary_##NAME##_end[]; \
|
|
extern const unsigned char binary_##NAME##_size[];
|
|
/// Provide access to the .data of the linked object.
|
|
#define LDVAR(NAME) binary_##NAME##_start
|
|
/// Provides access to the length of the .data section of the linked object.
|
|
#define LDLEN(NAME) binary_##NAME##_size
|
|
|
|
#else // gnu/linux ld
|
|
|
|
/// @brief Define variables pointing to external symbols, specifically
|
|
/// to the .data section of a linked object file.
|
|
#define EXTLD(NAME) \
|
|
extern const unsigned char _binary_##NAME##_start[]; \
|
|
extern const unsigned char _binary_##NAME##_end[]; \
|
|
extern const unsigned char _binary_##NAME##_size[];
|
|
/// Provides access to the .data of the linked object.
|
|
#define LDVAR(NAME) _binary_##NAME##_start
|
|
/// Provides access to the length of the .data section of the linked object.
|
|
#define LDLEN(NAME) _binary_##NAME##_size
|
|
#endif
|