[mirror_ubuntu-artful-kernel.git] / arch / arm / kernel / asm-offsets.c

/*
 * Copyright (C) 1995-2003 Russell King
 *               2001-2002 Keith Owens
 *     
 * Generate definitions needed by assembly language modules.
 * This code generates raw asm output which is post-processed to extract
 * and format the required data.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#include <linux/sched.h>
#include <linux/mm.h>
#include <asm/mach/arch.h>
#include <asm/thread_info.h>
#include <asm/memory.h>
#include <asm/procinfo.h>

/*
 * Make sure that the compiler and target are compatible.
 */
#if defined(__APCS_26__)
#error Sorry, your compiler targets APCS-26 but this kernel requires APCS-32
#endif
/*
 * GCC 3.0, 3.1: general bad code generation.
 * GCC 3.2.0: incorrect function argument offset calculation.
 * GCC 3.2.x: miscompiles NEW_AUX_ENT in fs/binfmt_elf.c
 *            (http://gcc.gnu.org/PR8896) and incorrect structure
 *	      initialisation in fs/jffs2/erase.c
 */
#if (__GNUC__ == 3 && __GNUC_MINOR__ < 3)
#error Your compiler is too buggy; it is known to miscompile kernels.
#error    Known good compilers: 3.3
#endif

/* Use marker if you need to separate the values later */

#define DEFINE(sym, val) \
        asm volatile("\n->" #sym " %0 " #val : : "i" (val))

#define BLANK() asm volatile("\n->" : : )

int main(void)
{
  DEFINE(TSK_ACTIVE_MM,		offsetof(struct task_struct, active_mm));
  BLANK();
  DEFINE(TI_FLAGS,		offsetof(struct thread_info, flags));
  DEFINE(TI_PREEMPT,		offsetof(struct thread_info, preempt_count));
  DEFINE(TI_ADDR_LIMIT,		offsetof(struct thread_info, addr_limit));
  DEFINE(TI_TASK,		offsetof(struct thread_info, task));
  DEFINE(TI_EXEC_DOMAIN,	offsetof(struct thread_info, exec_domain));
  DEFINE(TI_CPU,		offsetof(struct thread_info, cpu));
  DEFINE(TI_CPU_DOMAIN,		offsetof(struct thread_info, cpu_domain));
  DEFINE(TI_CPU_SAVE,		offsetof(struct thread_info, cpu_context));
  DEFINE(TI_USED_CP,		offsetof(struct thread_info, used_cp));
  DEFINE(TI_TP_VALUE,		offsetof(struct thread_info, tp_value));
  DEFINE(TI_FPSTATE,		offsetof(struct thread_info, fpstate));
  DEFINE(TI_VFPSTATE,		offsetof(struct thread_info, vfpstate));
#ifdef CONFIG_ARM_THUMBEE
  DEFINE(TI_THUMBEE_STATE,	offsetof(struct thread_info, thumbee_state));
#endif
#ifdef CONFIG_IWMMXT
  DEFINE(TI_IWMMXT_STATE,	offsetof(struct thread_info, fpstate.iwmmxt));
#endif
#ifdef CONFIG_CRUNCH
  DEFINE(TI_CRUNCH_STATE,	offsetof(struct thread_info, crunchstate));
#endif
  BLANK();
  DEFINE(S_R0,			offsetof(struct pt_regs, ARM_r0));
  DEFINE(S_R1,			offsetof(struct pt_regs, ARM_r1));
  DEFINE(S_R2,			offsetof(struct pt_regs, ARM_r2));
  DEFINE(S_R3,			offsetof(struct pt_regs, ARM_r3));
  DEFINE(S_R4,			offsetof(struct pt_regs, ARM_r4));
  DEFINE(S_R5,			offsetof(struct pt_regs, ARM_r5));
  DEFINE(S_R6,			offsetof(struct pt_regs, ARM_r6));
  DEFINE(S_R7,			offsetof(struct pt_regs, ARM_r7));
  DEFINE(S_R8,			offsetof(struct pt_regs, ARM_r8));
  DEFINE(S_R9,			offsetof(struct pt_regs, ARM_r9));
  DEFINE(S_R10,			offsetof(struct pt_regs, ARM_r10));
  DEFINE(S_FP,			offsetof(struct pt_regs, ARM_fp));
  DEFINE(S_IP,			offsetof(struct pt_regs, ARM_ip));
  DEFINE(S_SP,			offsetof(struct pt_regs, ARM_sp));
  DEFINE(S_LR,			offsetof(struct pt_regs, ARM_lr));
  DEFINE(S_PC,			offsetof(struct pt_regs, ARM_pc));
  DEFINE(S_PSR,			offsetof(struct pt_regs, ARM_cpsr));
  DEFINE(S_OLD_R0,		offsetof(struct pt_regs, ARM_ORIG_r0));
  DEFINE(S_FRAME_SIZE,		sizeof(struct pt_regs));
  BLANK();
#ifdef CONFIG_CPU_HAS_ASID
  DEFINE(MM_CONTEXT_ID,		offsetof(struct mm_struct, context.id));
  BLANK();
#endif
  DEFINE(VMA_VM_MM,		offsetof(struct vm_area_struct, vm_mm));
  DEFINE(VMA_VM_FLAGS,		offsetof(struct vm_area_struct, vm_flags));
  BLANK();
  DEFINE(VM_EXEC,	       	VM_EXEC);
  BLANK();
  DEFINE(PAGE_SZ,	       	PAGE_SIZE);
  BLANK();
  DEFINE(SYS_ERROR0,		0x9f0000);
  BLANK();
  DEFINE(SIZEOF_MACHINE_DESC,	sizeof(struct machine_desc));
  DEFINE(MACHINFO_TYPE,		offsetof(struct machine_desc, nr));
  DEFINE(MACHINFO_NAME,		offsetof(struct machine_desc, name));
  DEFINE(MACHINFO_PHYSIO,	offsetof(struct machine_desc, phys_io));
  DEFINE(MACHINFO_PGOFFIO,	offsetof(struct machine_desc, io_pg_offst));
  BLANK();
  DEFINE(PROC_INFO_SZ,		sizeof(struct proc_info_list));
  DEFINE(PROCINFO_INITFUNC,	offsetof(struct proc_info_list, __cpu_flush));
  DEFINE(PROCINFO_MM_MMUFLAGS,	offsetof(struct proc_info_list, __cpu_mm_mmu_flags));
  DEFINE(PROCINFO_IO_MMUFLAGS,	offsetof(struct proc_info_list, __cpu_io_mmu_flags));
  return 0; 
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Copyright (C) 1995-2003 Russell King
	3	* 2001-2002 Keith Owens
	4	*
	5	* Generate definitions needed by assembly language modules.
	6	* This code generates raw asm output which is post-processed to extract
	7	* and format the required data.
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License version 2 as
	11	* published by the Free Software Foundation.
	12	*/
	13	#include <linux/sched.h>
	14	#include <linux/mm.h>
	15	#include <asm/mach/arch.h>
	16	#include <asm/thread_info.h>
	17	#include <asm/memory.h>
ee90dabc	18	#include <asm/procinfo.h>
1da177e4 LT	19
	20	/*
	21	* Make sure that the compiler and target are compatible.
	22	*/
	23	#if defined(__APCS_26__)
	24	#error Sorry, your compiler targets APCS-26 but this kernel requires APCS-32
	25	#endif
	26	/*
1da177e4 LT	27	* GCC 3.0, 3.1: general bad code generation.
	28	* GCC 3.2.0: incorrect function argument offset calculation.
	29	* GCC 3.2.x: miscompiles NEW_AUX_ENT in fs/binfmt_elf.c
	30	* (http://gcc.gnu.org/PR8896) and incorrect structure
	31	* initialisation in fs/jffs2/erase.c
	32	*/
a1365647	33	#if (__GNUC__ == 3 && __GNUC_MINOR__ < 3)
1da177e4	34	#error Your compiler is too buggy; it is known to miscompile kernels.
a1365647	35	#error Known good compilers: 3.3
1da177e4 LT	36	#endif
	37
	38	/* Use marker if you need to separate the values later */
	39
	40	#define DEFINE(sym, val) \
	41	asm volatile("\n->" #sym " %0 " #val : : "i" (val))
	42
	43	#define BLANK() asm volatile("\n->" : : )
	44
	45	int main(void)
	46	{
	47	DEFINE(TSK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
	48	BLANK();
	49	DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
	50	DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count));
	51	DEFINE(TI_ADDR_LIMIT, offsetof(struct thread_info, addr_limit));
	52	DEFINE(TI_TASK, offsetof(struct thread_info, task));
	53	DEFINE(TI_EXEC_DOMAIN, offsetof(struct thread_info, exec_domain));
	54	DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
	55	DEFINE(TI_CPU_DOMAIN, offsetof(struct thread_info, cpu_domain));
	56	DEFINE(TI_CPU_SAVE, offsetof(struct thread_info, cpu_context));
	57	DEFINE(TI_USED_CP, offsetof(struct thread_info, used_cp));
	58	DEFINE(TI_TP_VALUE, offsetof(struct thread_info, tp_value));
	59	DEFINE(TI_FPSTATE, offsetof(struct thread_info, fpstate));
	60	DEFINE(TI_VFPSTATE, offsetof(struct thread_info, vfpstate));
d7f864be CM	61	#ifdef CONFIG_ARM_THUMBEE
	62	DEFINE(TI_THUMBEE_STATE, offsetof(struct thread_info, thumbee_state));
	63	#endif
cdaabbd7 RK	64	#ifdef CONFIG_IWMMXT
cdaabbd7 RK	65	DEFINE(TI_IWMMXT_STATE, offsetof(struct thread_info, fpstate.iwmmxt));
c17fad11 LB	66	#endif
	67	#ifdef CONFIG_CRUNCH
	68	DEFINE(TI_CRUNCH_STATE, offsetof(struct thread_info, crunchstate));
cdaabbd7	69	#endif
1da177e4	70	BLANK();
925c8a1a RK	71	DEFINE(S_R0, offsetof(struct pt_regs, ARM_r0));
	72	DEFINE(S_R1, offsetof(struct pt_regs, ARM_r1));
	73	DEFINE(S_R2, offsetof(struct pt_regs, ARM_r2));
	74	DEFINE(S_R3, offsetof(struct pt_regs, ARM_r3));
	75	DEFINE(S_R4, offsetof(struct pt_regs, ARM_r4));
	76	DEFINE(S_R5, offsetof(struct pt_regs, ARM_r5));
	77	DEFINE(S_R6, offsetof(struct pt_regs, ARM_r6));
	78	DEFINE(S_R7, offsetof(struct pt_regs, ARM_r7));
	79	DEFINE(S_R8, offsetof(struct pt_regs, ARM_r8));
	80	DEFINE(S_R9, offsetof(struct pt_regs, ARM_r9));
	81	DEFINE(S_R10, offsetof(struct pt_regs, ARM_r10));
	82	DEFINE(S_FP, offsetof(struct pt_regs, ARM_fp));
	83	DEFINE(S_IP, offsetof(struct pt_regs, ARM_ip));
	84	DEFINE(S_SP, offsetof(struct pt_regs, ARM_sp));
	85	DEFINE(S_LR, offsetof(struct pt_regs, ARM_lr));
	86	DEFINE(S_PC, offsetof(struct pt_regs, ARM_pc));
	87	DEFINE(S_PSR, offsetof(struct pt_regs, ARM_cpsr));
	88	DEFINE(S_OLD_R0, offsetof(struct pt_regs, ARM_ORIG_r0));
	89	DEFINE(S_FRAME_SIZE, sizeof(struct pt_regs));
	90	BLANK();
516793c6	91	#ifdef CONFIG_CPU_HAS_ASID
1da177e4 LT	92	DEFINE(MM_CONTEXT_ID, offsetof(struct mm_struct, context.id));
	93	BLANK();
	94	#endif
	95	DEFINE(VMA_VM_MM, offsetof(struct vm_area_struct, vm_mm));
	96	DEFINE(VMA_VM_FLAGS, offsetof(struct vm_area_struct, vm_flags));
	97	BLANK();
	98	DEFINE(VM_EXEC, VM_EXEC);
	99	BLANK();
	100	DEFINE(PAGE_SZ, PAGE_SIZE);
1da177e4 LT	101	BLANK();
	102	DEFINE(SYS_ERROR0, 0x9f0000);
	103	BLANK();
	104	DEFINE(SIZEOF_MACHINE_DESC, sizeof(struct machine_desc));
2eb9d315 UZ	105	DEFINE(MACHINFO_TYPE, offsetof(struct machine_desc, nr));
	106	DEFINE(MACHINFO_NAME, offsetof(struct machine_desc, name));
	107	DEFINE(MACHINFO_PHYSIO, offsetof(struct machine_desc, phys_io));
	108	DEFINE(MACHINFO_PGOFFIO, offsetof(struct machine_desc, io_pg_offst));
2ceec0c8 UZ	109	BLANK();
2ceec0c8 UZ	110	DEFINE(PROC_INFO_SZ, sizeof(struct proc_info_list));
2eb9d315	111	DEFINE(PROCINFO_INITFUNC, offsetof(struct proc_info_list, __cpu_flush));
8799ee9f RK	112	DEFINE(PROCINFO_MM_MMUFLAGS, offsetof(struct proc_info_list, __cpu_mm_mmu_flags));
8799ee9f RK	113	DEFINE(PROCINFO_IO_MMUFLAGS, offsetof(struct proc_info_list, __cpu_io_mmu_flags));
1da177e4 LT	114	return 0;
1da177e4 LT	115	}