arch/x86/kernel/asm-offsets_64.c

   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
   7 #include <linux/crypto.h>
   8 #include <linux/sched.h>
   9 #include <linux/stddef.h>
  10 #include <linux/errno.h>
  11 #include <linux/hardirq.h>
  12 #include <linux/suspend.h>
  13 #include <linux/kbuild.h>
  14 #include <asm/pda.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
  21 #include <xen/interface/xen.h>
  22
  23 #define __NO_STUBS 1
  24 #undef __SYSCALL
  25 #undef ASM_X86__UNISTD_64_H
  26 #define __SYSCALL(nr, sym) [nr] = 1,
  27 static char syscalls[] = {
  28 #include <asm/unistd.h>
  29 };
  30
  31 int main(void)
  32 {
  33 #define ENTRY(entry) DEFINE(tsk_ ## entry, offsetof(struct task_struct, entry))
  34         ENTRY(state);
  35         ENTRY(flags);
  36         ENTRY(pid);
  37         BLANK();
  38 #undef ENTRY
  39 #define ENTRY(entry) DEFINE(TI_ ## entry, offsetof(struct thread_info, entry))
  40         ENTRY(flags);
  41         ENTRY(addr_limit);
  42         ENTRY(preempt_count);
  43         ENTRY(status);
  44 #ifdef CONFIG_IA32_EMULATION
  45         ENTRY(sysenter_return);
  46 #endif
  47         BLANK();
  48 #undef ENTRY
  49 #define ENTRY(entry) DEFINE(pda_ ## entry, offsetof(struct x8664_pda, entry))
  50         ENTRY(kernelstack);
  51         ENTRY(oldrsp);
  52         ENTRY(pcurrent);
  53         ENTRY(irqcount);
  54         ENTRY(cpunumber);
  55         ENTRY(irqstackptr);
  56         ENTRY(data_offset);
  57         BLANK();
  58 #undef ENTRY
  59 #ifdef CONFIG_PARAVIRT
  60         BLANK();
  61         OFFSET(PARAVIRT_enabled, pv_info, paravirt_enabled);
  62         OFFSET(PARAVIRT_PATCH_pv_cpu_ops, paravirt_patch_template, pv_cpu_ops);
  63         OFFSET(PARAVIRT_PATCH_pv_irq_ops, paravirt_patch_template, pv_irq_ops);
  64         OFFSET(PV_IRQ_irq_disable, pv_irq_ops, irq_disable);
  65         OFFSET(PV_IRQ_irq_enable, pv_irq_ops, irq_enable);
  66         OFFSET(PV_IRQ_adjust_exception_frame, pv_irq_ops, adjust_exception_frame);
  67         OFFSET(PV_CPU_iret, pv_cpu_ops, iret);
  68         OFFSET(PV_CPU_usergs_sysret32, pv_cpu_ops, usergs_sysret32);
  69         OFFSET(PV_CPU_usergs_sysret64, pv_cpu_ops, usergs_sysret64);
  70         OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit);
  71         OFFSET(PV_CPU_swapgs, pv_cpu_ops, swapgs);
  72         OFFSET(PV_MMU_read_cr2, pv_mmu_ops, read_cr2);
  73 #endif
  74
  75
  76 #ifdef CONFIG_IA32_EMULATION
  77 #define ENTRY(entry) DEFINE(IA32_SIGCONTEXT_ ## entry, offsetof(struct sigcontext_ia32, entry))
  78         ENTRY(ax);
  79         ENTRY(bx);
  80         ENTRY(cx);
  81         ENTRY(dx);
  82         ENTRY(si);
  83         ENTRY(di);
  84         ENTRY(bp);
  85         ENTRY(sp);
  86         ENTRY(ip);
  87         BLANK();
  88 #undef ENTRY
  89         DEFINE(IA32_RT_SIGFRAME_sigcontext,
  90                offsetof (struct rt_sigframe32, uc.uc_mcontext));
  91         BLANK();
  92 #endif
  93         DEFINE(pbe_address, offsetof(struct pbe, address));
  94         DEFINE(pbe_orig_address, offsetof(struct pbe, orig_address));
  95         DEFINE(pbe_next, offsetof(struct pbe, next));
  96         BLANK();
  97 #define ENTRY(entry) DEFINE(pt_regs_ ## entry, offsetof(struct pt_regs, entry))
  98         ENTRY(bx);
  99         ENTRY(bx);
 100         ENTRY(cx);
 101         ENTRY(dx);
 102         ENTRY(sp);
 103         ENTRY(bp);
 104         ENTRY(si);
 105         ENTRY(di);
 106         ENTRY(r8);
 107         ENTRY(r9);
 108         ENTRY(r10);
 109         ENTRY(r11);
 110         ENTRY(r12);
 111         ENTRY(r13);
 112         ENTRY(r14);
 113         ENTRY(r15);
 114         ENTRY(flags);
 115         BLANK();
 116 #undef ENTRY
 117 #define ENTRY(entry) DEFINE(saved_context_ ## entry, offsetof(struct saved_context, entry))
 118         ENTRY(cr0);
 119         ENTRY(cr2);
 120         ENTRY(cr3);
 121         ENTRY(cr4);
 122         ENTRY(cr8);
 123         BLANK();
 124 #undef ENTRY
 125         DEFINE(TSS_ist, offsetof(struct tss_struct, x86_tss.ist));
 126         BLANK();
 127         DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx));
 128         BLANK();
 129         DEFINE(__NR_syscall_max, sizeof(syscalls) - 1);
 130
 131         BLANK();
 132         OFFSET(BP_scratch, boot_params, scratch);
 133         OFFSET(BP_loadflags, boot_params, hdr.loadflags);
 134         OFFSET(BP_hardware_subarch, boot_params, hdr.hardware_subarch);
 135         OFFSET(BP_version, boot_params, hdr.version);
 136
 137         BLANK();
 138         DEFINE(PAGE_SIZE_asm, PAGE_SIZE);
 139 #ifdef CONFIG_XEN
 140         BLANK();
 141         OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask);
 142         OFFSET(XEN_vcpu_info_pending, vcpu_info, evtchn_upcall_pending);
 143 #undef ENTRY
 144 #endif
 145         return 0;
 146 }