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 #define __NO_STUBS 1
  22 #undef __SYSCALL
  23 #undef _ASM_X86_64_UNISTD_H_
  24 #define __SYSCALL(nr, sym) [nr] = 1,
  25 static char syscalls[] = {
  26 #include <asm/unistd.h>
  27 };
  28
  29 int main(void)
  30 {
  31 #define ENTRY(entry) DEFINE(tsk_ ## entry, offsetof(struct task_struct, entry))
  32         ENTRY(state);
  33         ENTRY(flags);
  34         ENTRY(pid);
  35         BLANK();
  36 #undef ENTRY
  37 #define ENTRY(entry) DEFINE(threadinfo_ ## entry, offsetof(struct thread_info, entry))
  38         ENTRY(flags);
  39         ENTRY(addr_limit);
  40         ENTRY(preempt_count);
  41         ENTRY(status);
  42 #ifdef CONFIG_IA32_EMULATION
  43         ENTRY(sysenter_return);
  44 #endif
  45         BLANK();
  46 #undef ENTRY
  47 #define ENTRY(entry) DEFINE(pda_ ## entry, offsetof(struct x8664_pda, entry))
  48         ENTRY(kernelstack);
  49         ENTRY(oldrsp);
  50         ENTRY(pcurrent);
  51         ENTRY(irqcount);
  52         ENTRY(cpunumber);
  53         ENTRY(irqstackptr);
  54         ENTRY(data_offset);
  55         BLANK();
  56 #undef ENTRY
  57 #ifdef CONFIG_PARAVIRT
  58         BLANK();
  59         OFFSET(PARAVIRT_enabled, pv_info, paravirt_enabled);
  60         OFFSET(PARAVIRT_PATCH_pv_cpu_ops, paravirt_patch_template, pv_cpu_ops);
  61         OFFSET(PARAVIRT_PATCH_pv_irq_ops, paravirt_patch_template, pv_irq_ops);
  62         OFFSET(PV_IRQ_irq_disable, pv_irq_ops, irq_disable);
  63         OFFSET(PV_IRQ_irq_enable, pv_irq_ops, irq_enable);
  64         OFFSET(PV_CPU_iret, pv_cpu_ops, iret);
  65         OFFSET(PV_CPU_irq_enable_syscall_ret, pv_cpu_ops, irq_enable_syscall_ret);
  66         OFFSET(PV_CPU_swapgs, pv_cpu_ops, swapgs);
  67         OFFSET(PV_MMU_read_cr2, pv_mmu_ops, read_cr2);
  68 #endif
  69
  70
  71 #ifdef CONFIG_IA32_EMULATION
  72 #define ENTRY(entry) DEFINE(IA32_SIGCONTEXT_ ## entry, offsetof(struct sigcontext_ia32, entry))
  73         ENTRY(ax);
  74         ENTRY(bx);
  75         ENTRY(cx);
  76         ENTRY(dx);
  77         ENTRY(si);
  78         ENTRY(di);
  79         ENTRY(bp);
  80         ENTRY(sp);
  81         ENTRY(ip);
  82         BLANK();
  83 #undef ENTRY
  84         DEFINE(IA32_RT_SIGFRAME_sigcontext,
  85                offsetof (struct rt_sigframe32, uc.uc_mcontext));
  86         BLANK();
  87 #endif
  88         DEFINE(pbe_address, offsetof(struct pbe, address));
  89         DEFINE(pbe_orig_address, offsetof(struct pbe, orig_address));
  90         DEFINE(pbe_next, offsetof(struct pbe, next));
  91         BLANK();
  92 #define ENTRY(entry) DEFINE(pt_regs_ ## entry, offsetof(struct pt_regs, entry))
  93         ENTRY(bx);
  94         ENTRY(bx);
  95         ENTRY(cx);
  96         ENTRY(dx);
  97         ENTRY(sp);
  98         ENTRY(bp);
  99         ENTRY(si);
 100         ENTRY(di);
 101         ENTRY(r8);
 102         ENTRY(r9);
 103         ENTRY(r10);
 104         ENTRY(r11);
 105         ENTRY(r12);
 106         ENTRY(r13);
 107         ENTRY(r14);
 108         ENTRY(r15);
 109         ENTRY(flags);
 110         BLANK();
 111 #undef ENTRY
 112 #define ENTRY(entry) DEFINE(saved_context_ ## entry, offsetof(struct saved_context, entry))
 113         ENTRY(cr0);
 114         ENTRY(cr2);
 115         ENTRY(cr3);
 116         ENTRY(cr4);
 117         ENTRY(cr8);
 118         BLANK();
 119 #undef ENTRY
 120         DEFINE(TSS_ist, offsetof(struct tss_struct, x86_tss.ist));
 121         BLANK();
 122         DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx));
 123         BLANK();
 124         DEFINE(__NR_syscall_max, sizeof(syscalls) - 1);
 125
 126         BLANK();
 127         OFFSET(BP_scratch, boot_params, scratch);
 128         OFFSET(BP_loadflags, boot_params, hdr.loadflags);
 129         OFFSET(BP_hardware_subarch, boot_params, hdr.hardware_subarch);
 130         OFFSET(BP_version, boot_params, hdr.version);
 131         return 0;
 132 }