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 #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,
  30 static char syscalls[] = {
  31 #include <asm/unistd.h>
  32 };
  33
  34 int 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 }