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 #include <asm/sigframe.h>
  24
  25 #define __NO_STUBS 1
  26 #undef __SYSCALL
  27 #undef _ASM_X86_UNISTD_64_H
  28 #define __SYSCALL(nr, sym) [nr] = 1,
  29 static char syscalls[] = {
  30 #include <asm/unistd.h>
  31 };
  32
  33 int main(void)
  34 {
  35 #define ENTRY(entry) DEFINE(tsk_ ## entry, offsetof(struct task_struct, entry))
  36         ENTRY(state);
  37         ENTRY(flags);
  38         ENTRY(pid);
  39         BLANK();
  40 #undef ENTRY
  41 #define ENTRY(entry) DEFINE(TI_ ## entry, offsetof(struct thread_info, entry))
  42         ENTRY(flags);
  43         ENTRY(addr_limit);
  44         ENTRY(preempt_count);
  45         ENTRY(status);
  46 #ifdef CONFIG_IA32_EMULATION
  47         ENTRY(sysenter_return);
  48 #endif
  49         BLANK();
  50 #undef ENTRY
  51 #define ENTRY(entry) DEFINE(pda_ ## entry, offsetof(struct x8664_pda, entry))
  52         DEFINE(pda_size, sizeof(struct x8664_pda));
  53         BLANK();
  54 #undef ENTRY
  55 #ifdef CONFIG_PARAVIRT
  56         BLANK();
  57         OFFSET(PARAVIRT_enabled, pv_info, paravirt_enabled);
  58         OFFSET(PARAVIRT_PATCH_pv_cpu_ops, paravirt_patch_template, pv_cpu_ops);
  59         OFFSET(PARAVIRT_PATCH_pv_irq_ops, paravirt_patch_template, pv_irq_ops);
  60         OFFSET(PV_IRQ_irq_disable, pv_irq_ops, irq_disable);
  61         OFFSET(PV_IRQ_irq_enable, pv_irq_ops, irq_enable);
  62         OFFSET(PV_IRQ_adjust_exception_frame, pv_irq_ops, adjust_exception_frame);
  63         OFFSET(PV_CPU_iret, pv_cpu_ops, iret);
  64         OFFSET(PV_CPU_usergs_sysret32, pv_cpu_ops, usergs_sysret32);
  65         OFFSET(PV_CPU_usergs_sysret64, pv_cpu_ops, usergs_sysret64);
  66         OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit);
  67         OFFSET(PV_CPU_swapgs, pv_cpu_ops, swapgs);
  68         OFFSET(PV_MMU_read_cr2, pv_mmu_ops, read_cr2);
  69 #endif
  70
  71
  72 #ifdef CONFIG_IA32_EMULATION
  73 #define ENTRY(entry) DEFINE(IA32_SIGCONTEXT_ ## entry, offsetof(struct sigcontext_ia32, entry))
  74         ENTRY(ax);
  75         ENTRY(bx);
  76         ENTRY(cx);
  77         ENTRY(dx);
  78         ENTRY(si);
  79         ENTRY(di);
  80         ENTRY(bp);
  81         ENTRY(sp);
  82         ENTRY(ip);
  83         BLANK();
  84 #undef ENTRY
  85         DEFINE(IA32_RT_SIGFRAME_sigcontext,
  86                offsetof (struct rt_sigframe_ia32, uc.uc_mcontext));
  87         BLANK();
  88 #endif
  89         DEFINE(pbe_address, offsetof(struct pbe, address));
  90         DEFINE(pbe_orig_address, offsetof(struct pbe, orig_address));
  91         DEFINE(pbe_next, offsetof(struct pbe, next));
  92         BLANK();
  93 #define ENTRY(entry) DEFINE(pt_regs_ ## entry, offsetof(struct pt_regs, entry))
  94         ENTRY(bx);
  95         ENTRY(bx);
  96         ENTRY(cx);
  97         ENTRY(dx);
  98         ENTRY(sp);
  99         ENTRY(bp);
 100         ENTRY(si);
 101         ENTRY(di);
 102         ENTRY(r8);
 103         ENTRY(r9);
 104         ENTRY(r10);
 105         ENTRY(r11);
 106         ENTRY(r12);
 107         ENTRY(r13);
 108         ENTRY(r14);
 109         ENTRY(r15);
 110         ENTRY(flags);
 111         BLANK();
 112 #undef ENTRY
 113 #define ENTRY(entry) DEFINE(saved_context_ ## entry, offsetof(struct saved_context, entry))
 114         ENTRY(cr0);
 115         ENTRY(cr2);
 116         ENTRY(cr3);
 117         ENTRY(cr4);
 118         ENTRY(cr8);
 119         BLANK();
 120 #undef ENTRY
 121         DEFINE(TSS_ist, offsetof(struct tss_struct, x86_tss.ist));
 122         BLANK();
 123         DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx));
 124         BLANK();
 125         DEFINE(__NR_syscall_max, sizeof(syscalls) - 1);
 126
 127         BLANK();
 128         OFFSET(BP_scratch, boot_params, scratch);
 129         OFFSET(BP_loadflags, boot_params, hdr.loadflags);
 130         OFFSET(BP_hardware_subarch, boot_params, hdr.hardware_subarch);
 131         OFFSET(BP_version, boot_params, hdr.version);
 132
 133         BLANK();
 134         DEFINE(PAGE_SIZE_asm, PAGE_SIZE);
 135 #ifdef CONFIG_XEN
 136         BLANK();
 137         OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask);
 138         OFFSET(XEN_vcpu_info_pending, vcpu_info, evtchn_upcall_pending);
 139 #undef ENTRY
 140 #endif
 141         return 0;
 142 }