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