1df84502eSAlbert ARIBAUD /* 2df84502eSAlbert ARIBAUD * Copyright 2013 Albert ARIBAUD <albert.u.boot@aribaud.net> 3df84502eSAlbert ARIBAUD * 4df84502eSAlbert ARIBAUD * See file CREDITS for list of people who contributed to this 5df84502eSAlbert ARIBAUD * project. 6df84502eSAlbert ARIBAUD * 7df84502eSAlbert ARIBAUD * This program is free software; you can redistribute it and/or 8df84502eSAlbert ARIBAUD * modify it under the terms of the GNU General Public License as 9df84502eSAlbert ARIBAUD * published by the Free Software Foundation; either version 2 of 10df84502eSAlbert ARIBAUD * the License, or (at your option) any later version. 11df84502eSAlbert ARIBAUD * 12df84502eSAlbert ARIBAUD * This program is distributed in the hope that it will be useful, 13df84502eSAlbert ARIBAUD * but WITHOUT ANY WARRANTY; without even the implied warranty of 14df84502eSAlbert ARIBAUD * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15df84502eSAlbert ARIBAUD * GNU General Public License for more details. 16df84502eSAlbert ARIBAUD * 17df84502eSAlbert ARIBAUD * You should have received a copy of the GNU General Public License 18df84502eSAlbert ARIBAUD * along with this program; if not, write to the Free Software 19df84502eSAlbert ARIBAUD * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 20df84502eSAlbert ARIBAUD * MA 02111-1307 USA 21df84502eSAlbert ARIBAUD */ 22df84502eSAlbert ARIBAUD 23df84502eSAlbert ARIBAUD /** 24df84502eSAlbert ARIBAUD * These two symbols are declared in a C file so that the linker 25df84502eSAlbert ARIBAUD * uses R_ARM_RELATIVE relocation, rather than the R_ARM_ABS32 one 26df84502eSAlbert ARIBAUD * it would use if the symbols were defined in the linker file. 27df84502eSAlbert ARIBAUD * Using only R_ARM_RELATIVE relocation ensures that references to 28df84502eSAlbert ARIBAUD * the symbols are correct after as well as before relocation. 29df84502eSAlbert ARIBAUD * 30df84502eSAlbert ARIBAUD * We need a 0-byte-size type for these symbols, and the compiler 31df84502eSAlbert ARIBAUD * does not allow defining objects of C type 'void'. Using an empty 32df84502eSAlbert ARIBAUD * struct is allowed by the compiler, but causes gcc versions 4.4 and 33df84502eSAlbert ARIBAUD * below to complain about aliasing. Therefore we use the next best 34df84502eSAlbert ARIBAUD * thing: zero-sized arrays, which are both 0-byte-size and exempt from 35df84502eSAlbert ARIBAUD * aliasing warnings. 36df84502eSAlbert ARIBAUD */ 37df84502eSAlbert ARIBAUD 38df84502eSAlbert ARIBAUD char __bss_start[0] __attribute__((section(".__bss_start"))); 39df84502eSAlbert ARIBAUD char __bss_end[0] __attribute__((section(".__bss_end"))); 40d026dec8SAlbert ARIBAUD char __image_copy_start[0] __attribute__((section(".__image_copy_start"))); 41d026dec8SAlbert ARIBAUD char __image_copy_end[0] __attribute__((section(".__image_copy_end"))); 42*47bd65efSAlbert ARIBAUD char __rel_dyn_start[0] __attribute__((section(".__rel_dyn_start"))); 43*47bd65efSAlbert ARIBAUD char __rel_dyn_end[0] __attribute__((section(".__rel_dyn_end"))); 44