1/* 2 * This program is used to generate definitions needed by 3 * assembly language modules. 4 * 5 * We use the technique used in the OSF Mach kernel code: 6 * generate asm statements containing #defines, 7 * compile this file to assembler, and then extract the 8 * #defines from the assembly-language output. 9 */ 10 11#include <linux/signal.h> 12#include <linux/sched.h> 13#include <linux/kernel.h> 14#include <linux/errno.h> 15#include <linux/string.h> 16#include <linux/types.h> 17#include <linux/ptrace.h> 18#include <linux/suspend.h> 19#include <linux/mman.h> 20#include <linux/mm.h> 21#include <asm/io.h> 22#include <asm/page.h> 23#include <asm/pgtable.h> 24#include <asm/processor.h> 25#include <asm/cputable.h> 26#include <asm/thread_info.h> 27#include <asm/vdso_datapage.h> 28 29#define DEFINE(sym, val) \ 30 asm volatile("\n->" #sym " %0 " #val : : "i" (val)) 31 32#define BLANK() asm volatile("\n->" : : ) 33 34int 35main(void) 36{ 37 DEFINE(THREAD, offsetof(struct task_struct, thread)); 38 DEFINE(THREAD_INFO, offsetof(struct task_struct, stack)); 39 DEFINE(MM, offsetof(struct task_struct, mm)); 40 DEFINE(PTRACE, offsetof(struct task_struct, ptrace)); 41 DEFINE(KSP, offsetof(struct thread_struct, ksp)); 42 DEFINE(PGDIR, offsetof(struct thread_struct, pgdir)); 43 DEFINE(PT_REGS, offsetof(struct thread_struct, regs)); 44 DEFINE(THREAD_FPEXC_MODE, offsetof(struct thread_struct, fpexc_mode)); 45 DEFINE(THREAD_FPR0, offsetof(struct thread_struct, fpr[0])); 46 DEFINE(THREAD_FPSCR, offsetof(struct thread_struct, fpscr)); 47#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE) 48 DEFINE(THREAD_DBCR0, offsetof(struct thread_struct, dbcr0)); 49 DEFINE(PT_PTRACED, PT_PTRACED); 50#endif 51#ifdef CONFIG_ALTIVEC 52 DEFINE(THREAD_VR0, offsetof(struct thread_struct, vr[0])); 53 DEFINE(THREAD_VRSAVE, offsetof(struct thread_struct, vrsave)); 54 DEFINE(THREAD_VSCR, offsetof(struct thread_struct, vscr)); 55 DEFINE(THREAD_USED_VR, offsetof(struct thread_struct, used_vr)); 56#endif /* CONFIG_ALTIVEC */ 57#ifdef CONFIG_SPE 58 DEFINE(THREAD_EVR0, offsetof(struct thread_struct, evr[0])); 59 DEFINE(THREAD_ACC, offsetof(struct thread_struct, acc)); 60 DEFINE(THREAD_SPEFSCR, offsetof(struct thread_struct, spefscr)); 61 DEFINE(THREAD_USED_SPE, offsetof(struct thread_struct, used_spe)); 62#endif /* CONFIG_SPE */ 63 /* Interrupt register frame */ 64 DEFINE(STACK_FRAME_OVERHEAD, STACK_FRAME_OVERHEAD); 65 DEFINE(INT_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs)); 66 /* in fact we only use gpr0 - gpr9 and gpr20 - gpr23 */ 67 DEFINE(GPR0, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[0])); 68 DEFINE(GPR1, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[1])); 69 DEFINE(GPR2, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[2])); 70 DEFINE(GPR3, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[3])); 71 DEFINE(GPR4, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[4])); 72 DEFINE(GPR5, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[5])); 73 DEFINE(GPR6, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[6])); 74 DEFINE(GPR7, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[7])); 75 DEFINE(GPR8, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[8])); 76 DEFINE(GPR9, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[9])); 77 DEFINE(GPR10, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[10])); 78 DEFINE(GPR11, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[11])); 79 DEFINE(GPR12, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[12])); 80 DEFINE(GPR13, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[13])); 81 DEFINE(GPR14, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[14])); 82 DEFINE(GPR15, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[15])); 83 DEFINE(GPR16, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[16])); 84 DEFINE(GPR17, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[17])); 85 DEFINE(GPR18, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[18])); 86 DEFINE(GPR19, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[19])); 87 DEFINE(GPR20, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[20])); 88 DEFINE(GPR21, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[21])); 89 DEFINE(GPR22, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[22])); 90 DEFINE(GPR23, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[23])); 91 DEFINE(GPR24, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[24])); 92 DEFINE(GPR25, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[25])); 93 DEFINE(GPR26, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[26])); 94 DEFINE(GPR27, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[27])); 95 DEFINE(GPR28, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[28])); 96 DEFINE(GPR29, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[29])); 97 DEFINE(GPR30, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[30])); 98 DEFINE(GPR31, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[31])); 99 /* Note: these symbols include _ because they overlap with special 100 * register names 101 */ 102 DEFINE(_NIP, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, nip)); 103 DEFINE(_MSR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, msr)); 104 DEFINE(_CTR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, ctr)); 105 DEFINE(_LINK, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, link)); 106 DEFINE(_CCR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, ccr)); 107 DEFINE(_MQ, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, mq)); 108 DEFINE(_XER, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, xer)); 109 DEFINE(_DAR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dar)); 110 DEFINE(_DSISR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dsisr)); 111 /* The PowerPC 400-class & Book-E processors have neither the DAR nor the DSISR 112 * SPRs. Hence, we overload them to hold the similar DEAR and ESR SPRs 113 * for such processors. For critical interrupts we use them to 114 * hold SRR0 and SRR1. 115 */ 116 DEFINE(_DEAR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dar)); 117 DEFINE(_ESR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dsisr)); 118 DEFINE(ORIG_GPR3, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, orig_gpr3)); 119 DEFINE(RESULT, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, result)); 120 DEFINE(TRAP, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, trap)); 121 DEFINE(CLONE_VM, CLONE_VM); 122 DEFINE(CLONE_UNTRACED, CLONE_UNTRACED); 123 DEFINE(MM_PGD, offsetof(struct mm_struct, pgd)); 124 125 /* About the CPU features table */ 126 DEFINE(CPU_SPEC_ENTRY_SIZE, sizeof(struct cpu_spec)); 127 DEFINE(CPU_SPEC_PVR_MASK, offsetof(struct cpu_spec, pvr_mask)); 128 DEFINE(CPU_SPEC_PVR_VALUE, offsetof(struct cpu_spec, pvr_value)); 129 DEFINE(CPU_SPEC_FEATURES, offsetof(struct cpu_spec, cpu_features)); 130 DEFINE(CPU_SPEC_SETUP, offsetof(struct cpu_spec, cpu_setup)); 131 132 DEFINE(TI_TASK, offsetof(struct thread_info, task)); 133 DEFINE(TI_EXECDOMAIN, offsetof(struct thread_info, exec_domain)); 134 DEFINE(TI_FLAGS, offsetof(struct thread_info, flags)); 135 DEFINE(TI_LOCAL_FLAGS, offsetof(struct thread_info, local_flags)); 136 DEFINE(TI_CPU, offsetof(struct thread_info, cpu)); 137 DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count)); 138 139 DEFINE(pbe_address, offsetof(struct pbe, address)); 140 DEFINE(pbe_orig_address, offsetof(struct pbe, orig_address)); 141 DEFINE(pbe_next, offsetof(struct pbe, next)); 142 143 DEFINE(TASK_SIZE, TASK_SIZE); 144 DEFINE(NUM_USER_SEGMENTS, TASK_SIZE>>28); 145 146 /* datapage offsets for use by vdso */ 147 DEFINE(CFG_TB_ORIG_STAMP, offsetof(struct vdso_data, tb_orig_stamp)); 148 DEFINE(CFG_TB_TICKS_PER_SEC, offsetof(struct vdso_data, tb_ticks_per_sec)); 149 DEFINE(CFG_TB_TO_XS, offsetof(struct vdso_data, tb_to_xs)); 150 DEFINE(CFG_STAMP_XSEC, offsetof(struct vdso_data, stamp_xsec)); 151 DEFINE(CFG_TB_UPDATE_COUNT, offsetof(struct vdso_data, tb_update_count)); 152 DEFINE(CFG_TZ_MINUTEWEST, offsetof(struct vdso_data, tz_minuteswest)); 153 DEFINE(CFG_TZ_DSTTIME, offsetof(struct vdso_data, tz_dsttime)); 154 DEFINE(CFG_SYSCALL_MAP32, offsetof(struct vdso_data, syscall_map_32)); 155 DEFINE(WTOM_CLOCK_SEC, offsetof(struct vdso_data, wtom_clock_sec)); 156 DEFINE(WTOM_CLOCK_NSEC, offsetof(struct vdso_data, wtom_clock_nsec)); 157 DEFINE(TVAL32_TV_SEC, offsetof(struct timeval, tv_sec)); 158 DEFINE(TVAL32_TV_USEC, offsetof(struct timeval, tv_usec)); 159 DEFINE(TSPEC32_TV_SEC, offsetof(struct timespec, tv_sec)); 160 DEFINE(TSPEC32_TV_NSEC, offsetof(struct timespec, tv_nsec)); 161 162 /* timeval/timezone offsets for use by vdso */ 163 DEFINE(TZONE_TZ_MINWEST, offsetof(struct timezone, tz_minuteswest)); 164 DEFINE(TZONE_TZ_DSTTIME, offsetof(struct timezone, tz_dsttime)); 165 166 /* Other bits used by the vdso */ 167 DEFINE(CLOCK_REALTIME, CLOCK_REALTIME); 168 DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC); 169 DEFINE(NSEC_PER_SEC, NSEC_PER_SEC); 170 DEFINE(CLOCK_REALTIME_RES, TICK_NSEC); 171 172 return 0; 173} 174