linux/arch/x86/kernel/asm-offsets_64.c
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   1/*
   2 * Generate definitions needed by assembly language modules.
   3 * This code generates raw asm output which is post-processed to extract
   4 * and format the required data.
   5 */
   6#define COMPILE_OFFSETS
   7
   8#include <linux/crypto.h>
   9#include <linux/sched.h> 
  10#include <linux/stddef.h>
  11#include <linux/errno.h> 
  12#include <linux/hardirq.h>
  13#include <linux/suspend.h>
  14#include <linux/kbuild.h>
  15#include <asm/processor.h>
  16#include <asm/segment.h>
  17#include <asm/thread_info.h>
  18#include <asm/ia32.h>
  19#include <asm/bootparam.h>
  20#include <asm/suspend.h>
  21
  22#include <xen/interface/xen.h>
  23
  24#include <asm/sigframe.h>
  25
  26#define __NO_STUBS 1
  27#undef __SYSCALL
  28#undef _ASM_X86_UNISTD_64_H
  29#define __SYSCALL(nr, sym) [nr] = 1,
  30static char syscalls[] = {
  31#include <asm/unistd.h>
  32};
  33
  34int main(void)
  35{
  36#define ENTRY(entry) DEFINE(tsk_ ## entry, offsetof(struct task_struct, entry))
  37        ENTRY(state);
  38        ENTRY(flags); 
  39        ENTRY(pid);
  40        BLANK();
  41#undef ENTRY
  42#define ENTRY(entry) DEFINE(TI_ ## entry, offsetof(struct thread_info, entry))
  43        ENTRY(flags);
  44        ENTRY(addr_limit);
  45        ENTRY(preempt_count);
  46        ENTRY(status);
  47#ifdef CONFIG_IA32_EMULATION
  48        ENTRY(sysenter_return);
  49#endif
  50        BLANK();
  51#undef ENTRY
  52#ifdef CONFIG_PARAVIRT
  53        BLANK();
  54        OFFSET(PARAVIRT_enabled, pv_info, paravirt_enabled);
  55        OFFSET(PARAVIRT_PATCH_pv_cpu_ops, paravirt_patch_template, pv_cpu_ops);
  56        OFFSET(PARAVIRT_PATCH_pv_irq_ops, paravirt_patch_template, pv_irq_ops);
  57        OFFSET(PV_IRQ_irq_disable, pv_irq_ops, irq_disable);
  58        OFFSET(PV_IRQ_irq_enable, pv_irq_ops, irq_enable);
  59        OFFSET(PV_IRQ_adjust_exception_frame, pv_irq_ops, adjust_exception_frame);
  60        OFFSET(PV_CPU_iret, pv_cpu_ops, iret);
  61        OFFSET(PV_CPU_usergs_sysret32, pv_cpu_ops, usergs_sysret32);
  62        OFFSET(PV_CPU_usergs_sysret64, pv_cpu_ops, usergs_sysret64);
  63        OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit);
  64        OFFSET(PV_CPU_swapgs, pv_cpu_ops, swapgs);
  65        OFFSET(PV_MMU_read_cr2, pv_mmu_ops, read_cr2);
  66#endif
  67
  68
  69#ifdef CONFIG_IA32_EMULATION
  70#define ENTRY(entry) DEFINE(IA32_SIGCONTEXT_ ## entry, offsetof(struct sigcontext_ia32, entry))
  71        ENTRY(ax);
  72        ENTRY(bx);
  73        ENTRY(cx);
  74        ENTRY(dx);
  75        ENTRY(si);
  76        ENTRY(di);
  77        ENTRY(bp);
  78        ENTRY(sp);
  79        ENTRY(ip);
  80        BLANK();
  81#undef ENTRY
  82        DEFINE(IA32_RT_SIGFRAME_sigcontext,
  83               offsetof (struct rt_sigframe_ia32, uc.uc_mcontext));
  84        BLANK();
  85#endif
  86        DEFINE(pbe_address, offsetof(struct pbe, address));
  87        DEFINE(pbe_orig_address, offsetof(struct pbe, orig_address));
  88        DEFINE(pbe_next, offsetof(struct pbe, next));
  89        BLANK();
  90#define ENTRY(entry) DEFINE(pt_regs_ ## entry, offsetof(struct pt_regs, entry))
  91        ENTRY(bx);
  92        ENTRY(bx);
  93        ENTRY(cx);
  94        ENTRY(dx);
  95        ENTRY(sp);
  96        ENTRY(bp);
  97        ENTRY(si);
  98        ENTRY(di);
  99        ENTRY(r8);
 100        ENTRY(r9);
 101        ENTRY(r10);
 102        ENTRY(r11);
 103        ENTRY(r12);
 104        ENTRY(r13);
 105        ENTRY(r14);
 106        ENTRY(r15);
 107        ENTRY(flags);
 108        BLANK();
 109#undef ENTRY
 110#define ENTRY(entry) DEFINE(saved_context_ ## entry, offsetof(struct saved_context, entry))
 111        ENTRY(cr0);
 112        ENTRY(cr2);
 113        ENTRY(cr3);
 114        ENTRY(cr4);
 115        ENTRY(cr8);
 116        BLANK();
 117#undef ENTRY
 118        DEFINE(TSS_ist, offsetof(struct tss_struct, x86_tss.ist));
 119        BLANK();
 120        DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx));
 121        BLANK();
 122        DEFINE(__NR_syscall_max, sizeof(syscalls) - 1);
 123
 124        BLANK();
 125        OFFSET(BP_scratch, boot_params, scratch);
 126        OFFSET(BP_loadflags, boot_params, hdr.loadflags);
 127        OFFSET(BP_hardware_subarch, boot_params, hdr.hardware_subarch);
 128        OFFSET(BP_version, boot_params, hdr.version);
 129        OFFSET(BP_kernel_alignment, boot_params, hdr.kernel_alignment);
 130
 131        BLANK();
 132        DEFINE(PAGE_SIZE_asm, PAGE_SIZE);
 133#ifdef CONFIG_XEN
 134        BLANK();
 135        OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask);
 136        OFFSET(XEN_vcpu_info_pending, vcpu_info, evtchn_upcall_pending);
 137#undef ENTRY
 138#endif
 139        return 0;
 140}
 141