1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright 2013 Albert ARIBAUD <albert.u.boot@aribaud.net> 4 */ 5 6 /** 7 * These two symbols are declared in a C file so that the linker 8 * uses R_ARM_RELATIVE relocation, rather than the R_ARM_ABS32 one 9 * it would use if the symbols were defined in the linker file. 10 * Using only R_ARM_RELATIVE relocation ensures that references to 11 * the symbols are correct after as well as before relocation. 12 * 13 * We need a 0-byte-size type for these symbols, and the compiler 14 * does not allow defining objects of C type 'void'. Using an empty 15 * struct is allowed by the compiler, but causes gcc versions 4.4 and 16 * below to complain about aliasing. Therefore we use the next best 17 * thing: zero-sized arrays, which are both 0-byte-size and exempt from 18 * aliasing warnings. 19 */ 20 21 char __bss_start[0] __attribute__((section(".__bss_start"))); 22 char __bss_end[0] __attribute__((section(".__bss_end"))); 23 char __image_copy_start[0] __attribute__((section(".__image_copy_start"))); 24 char __image_copy_end[0] __attribute__((section(".__image_copy_end"))); 25 char __rel_dyn_start[0] __attribute__((section(".__rel_dyn_start"))); 26 char __rel_dyn_end[0] __attribute__((section(".__rel_dyn_end"))); 27 char __secure_start[0] __attribute__((section(".__secure_start"))); 28 char __secure_end[0] __attribute__((section(".__secure_end"))); 29 char __secure_stack_start[0] __attribute__((section(".__secure_stack_start"))); 30 char __secure_stack_end[0] __attribute__((section(".__secure_stack_end"))); 31 char __efi_runtime_start[0] __attribute__((section(".__efi_runtime_start"))); 32 char __efi_runtime_stop[0] __attribute__((section(".__efi_runtime_stop"))); 33 char __efi_runtime_rel_start[0] __attribute__((section(".__efi_runtime_rel_start"))); 34 char __efi_runtime_rel_stop[0] __attribute__((section(".__efi_runtime_rel_stop"))); 35 char _end[0] __attribute__((section(".__end"))); 36