arch/x86/kernel/asm-offsets.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/hardirq.h>
  12 #include <linux/suspend.h>
  13 #include <linux/kbuild.h>
  14 #include <asm/processor.h>
  15 #include <asm/thread_info.h>
  16 #include <asm/sigframe.h>
  17 #include <asm/bootparam.h>
  18 #include <asm/suspend.h>
  19
  20 #ifdef CONFIG_XEN
  21 #include <xen/interface/xen.h>
  22 #endif
  23
  24 #ifdef CONFIG_X86_32
  25 # include "asm-offsets_32.c"
  26 #else
  27 # include "asm-offsets_64.c"
  28 #endif
  29
  30 void common(void) {
  31         BLANK();
  32         OFFSET(TI_flags, thread_info, flags);
  33         OFFSET(TI_status, thread_info, status);
  34         OFFSET(TI_addr_limit, thread_info, addr_limit);
  35
  36         BLANK();
  37         OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx);
  38
  39         BLANK();
  40         OFFSET(pbe_address, pbe, address);
  41         OFFSET(pbe_orig_address, pbe, orig_address);
  42         OFFSET(pbe_next, pbe, next);
  43
  44 #if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION)
  45         BLANK();
  46         OFFSET(IA32_SIGCONTEXT_ax, sigcontext_32, ax);
  47         OFFSET(IA32_SIGCONTEXT_bx, sigcontext_32, bx);
  48         OFFSET(IA32_SIGCONTEXT_cx, sigcontext_32, cx);
  49         OFFSET(IA32_SIGCONTEXT_dx, sigcontext_32, dx);
  50         OFFSET(IA32_SIGCONTEXT_si, sigcontext_32, si);
  51         OFFSET(IA32_SIGCONTEXT_di, sigcontext_32, di);
  52         OFFSET(IA32_SIGCONTEXT_bp, sigcontext_32, bp);
  53         OFFSET(IA32_SIGCONTEXT_sp, sigcontext_32, sp);
  54         OFFSET(IA32_SIGCONTEXT_ip, sigcontext_32, ip);
  55
  56         BLANK();
  57         OFFSET(TI_sysenter_return, thread_info, sysenter_return);
  58
  59         BLANK();
  60         OFFSET(IA32_RT_SIGFRAME_sigcontext, rt_sigframe_ia32, uc.uc_mcontext);
  61 #endif
  62
  63 #ifdef CONFIG_PARAVIRT
  64         BLANK();
  65         OFFSET(PARAVIRT_enabled, pv_info, paravirt_enabled);
  66         OFFSET(PARAVIRT_PATCH_pv_cpu_ops, paravirt_patch_template, pv_cpu_ops);
  67         OFFSET(PARAVIRT_PATCH_pv_irq_ops, paravirt_patch_template, pv_irq_ops);
  68         OFFSET(PV_IRQ_irq_disable, pv_irq_ops, irq_disable);
  69         OFFSET(PV_IRQ_irq_enable, pv_irq_ops, irq_enable);
  70         OFFSET(PV_CPU_iret, pv_cpu_ops, iret);
  71 #ifdef CONFIG_X86_32
  72         OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit);
  73 #endif
  74         OFFSET(PV_CPU_read_cr0, pv_cpu_ops, read_cr0);
  75         OFFSET(PV_MMU_read_cr2, pv_mmu_ops, read_cr2);
  76 #endif
  77
  78 #ifdef CONFIG_XEN
  79         BLANK();
  80         OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask);
  81         OFFSET(XEN_vcpu_info_pending, vcpu_info, evtchn_upcall_pending);
  82 #endif
  83
  84         BLANK();
  85         OFFSET(BP_scratch, boot_params, scratch);
  86         OFFSET(BP_loadflags, boot_params, hdr.loadflags);
  87         OFFSET(BP_hardware_subarch, boot_params, hdr.hardware_subarch);
  88         OFFSET(BP_version, boot_params, hdr.version);
  89         OFFSET(BP_kernel_alignment, boot_params, hdr.kernel_alignment);
  90         OFFSET(BP_pref_address, boot_params, hdr.pref_address);
  91         OFFSET(BP_code32_start, boot_params, hdr.code32_start);
  92
  93         BLANK();
  94         DEFINE(PTREGS_SIZE, sizeof(struct pt_regs));
  95 }