1 /* 2 * Copyright 2022 Haiku, Inc. All Rights Reserved. 3 * Copyright 2007-2011, Ingo Weinhold, ingo_weinhold@gmx.de. 4 * Distributed under the terms of the MIT License. 5 */ 6 7 // This file is used to get C structure offsets into assembly code. 8 // The build system assembles the file and processes the output to create 9 // a header file with macro definitions, that can be included from assembly 10 // code. 11 12 13 #include <computed_asm_macros.h> 14 15 #include <arch_cpu.h> 16 #include <cpu.h> 17 #include <ksignal.h> 18 #include <ksyscalls.h> 19 #include <thread_types.h> 20 21 22 #define DEFINE_MACRO(macro, value) DEFINE_COMPUTED_ASM_MACRO(macro, value) 23 24 #define DEFINE_OFFSET_MACRO(prefix, structure, member) \ 25 DEFINE_MACRO(prefix##_##member, offsetof(struct structure, member)); 26 27 #define DEFINE_SIZEOF_MACRO(prefix, structure) \ 28 DEFINE_MACRO(prefix##_sizeof, sizeof(struct structure)); 29 30 31 void 32 dummy() 33 { 34 DEFINE_SIZEOF_MACRO(IFRAME, iframe); 35 DEFINE_OFFSET_MACRO(IFRAME, iframe, elr); 36 DEFINE_OFFSET_MACRO(IFRAME, iframe, spsr); 37 DEFINE_OFFSET_MACRO(IFRAME, iframe, x); 38 DEFINE_OFFSET_MACRO(IFRAME, iframe, lr); 39 DEFINE_OFFSET_MACRO(IFRAME, iframe, sp); 40 DEFINE_OFFSET_MACRO(IFRAME, iframe, fp); 41 DEFINE_OFFSET_MACRO(IFRAME, iframe, esr); 42 DEFINE_OFFSET_MACRO(IFRAME, iframe, far); 43 44 DEFINE_OFFSET_MACRO(CPU_ENT, cpu_ent, fault_handler); 45 DEFINE_OFFSET_MACRO(CPU_ENT, cpu_ent, fault_handler_stack_pointer); 46 } 47 48 49 // fp must be located at x[29] so that we can load/store 50 // x[28] and fp with a single LDP/STP instruction. 51 STATIC_ASSERT(offsetof(iframe, fp) == offsetof(iframe, x) + 29 * 8); 52