arch/x86/kernel/asm-offsets_32.c

   1 /*
   2  * Generate definitions needed by assembly language modules.
   3  * This code generates raw asm output which is post-processed
   4  * to extract and format the required data.
   5  */
   6
   7 #include <linux/crypto.h>
   8 #include <linux/sched.h>
   9 #include <linux/signal.h>
  10 #include <linux/personality.h>
  11 #include <linux/suspend.h>
  12 #include <linux/kbuild.h>
  13 #include <asm/ucontext.h>
  14 #include "sigframe.h"
  15 #include <asm/pgtable.h>
  16 #include <asm/fixmap.h>
  17 #include <asm/processor.h>
  18 #include <asm/thread_info.h>
  19 #include <asm/bootparam.h>
  20 #include <asm/elf.h>
  21
  22 #include <xen/interface/xen.h>
  23
  24 #include <linux/lguest.h>
  25 #include "../../../drivers/lguest/lg.h"
  26
  27 /* workaround for a warning with -Wmissing-prototypes */
  28 void foo(void);
  29
  30 void foo(void)
  31 {
  32         OFFSET(IA32_SIGCONTEXT_ax, sigcontext, ax);
  33         OFFSET(IA32_SIGCONTEXT_bx, sigcontext, bx);
  34         OFFSET(IA32_SIGCONTEXT_cx, sigcontext, cx);
  35         OFFSET(IA32_SIGCONTEXT_dx, sigcontext, dx);
  36         OFFSET(IA32_SIGCONTEXT_si, sigcontext, si);
  37         OFFSET(IA32_SIGCONTEXT_di, sigcontext, di);
  38         OFFSET(IA32_SIGCONTEXT_bp, sigcontext, bp);
  39         OFFSET(IA32_SIGCONTEXT_sp, sigcontext, sp);
  40         OFFSET(IA32_SIGCONTEXT_ip, sigcontext, ip);
  41         BLANK();
  42
  43         OFFSET(CPUINFO_x86, cpuinfo_x86, x86);
  44         OFFSET(CPUINFO_x86_vendor, cpuinfo_x86, x86_vendor);
  45         OFFSET(CPUINFO_x86_model, cpuinfo_x86, x86_model);
  46         OFFSET(CPUINFO_x86_mask, cpuinfo_x86, x86_mask);
  47         OFFSET(CPUINFO_hard_math, cpuinfo_x86, hard_math);
  48         OFFSET(CPUINFO_cpuid_level, cpuinfo_x86, cpuid_level);
  49         OFFSET(CPUINFO_x86_capability, cpuinfo_x86, x86_capability);
  50         OFFSET(CPUINFO_x86_vendor_id, cpuinfo_x86, x86_vendor_id);
  51         BLANK();
  52
  53         OFFSET(TI_task, thread_info, task);
  54         OFFSET(TI_exec_domain, thread_info, exec_domain);
  55         OFFSET(TI_flags, thread_info, flags);
  56         OFFSET(TI_status, thread_info, status);
  57         OFFSET(TI_preempt_count, thread_info, preempt_count);
  58         OFFSET(TI_addr_limit, thread_info, addr_limit);
  59         OFFSET(TI_restart_block, thread_info, restart_block);
  60         OFFSET(TI_sysenter_return, thread_info, sysenter_return);
  61         OFFSET(TI_cpu, thread_info, cpu);
  62         BLANK();
  63
  64         OFFSET(GDS_size, desc_ptr, size);
  65         OFFSET(GDS_address, desc_ptr, address);
  66         BLANK();
  67
  68         OFFSET(PT_EBX, pt_regs, bx);
  69         OFFSET(PT_ECX, pt_regs, cx);
  70         OFFSET(PT_EDX, pt_regs, dx);
  71         OFFSET(PT_ESI, pt_regs, si);
  72         OFFSET(PT_EDI, pt_regs, di);
  73         OFFSET(PT_EBP, pt_regs, bp);
  74         OFFSET(PT_EAX, pt_regs, ax);
  75         OFFSET(PT_DS,  pt_regs, ds);
  76         OFFSET(PT_ES,  pt_regs, es);
  77         OFFSET(PT_FS,  pt_regs, fs);
  78         OFFSET(PT_ORIG_EAX, pt_regs, orig_ax);
  79         OFFSET(PT_EIP, pt_regs, ip);
  80         OFFSET(PT_CS,  pt_regs, cs);
  81         OFFSET(PT_EFLAGS, pt_regs, flags);
  82         OFFSET(PT_OLDESP, pt_regs, sp);
  83         OFFSET(PT_OLDSS,  pt_regs, ss);
  84         BLANK();
  85
  86         OFFSET(EXEC_DOMAIN_handler, exec_domain, handler);
  87         OFFSET(IA32_RT_SIGFRAME_sigcontext, rt_sigframe, uc.uc_mcontext);
  88         BLANK();
  89
  90         OFFSET(pbe_address, pbe, address);
  91         OFFSET(pbe_orig_address, pbe, orig_address);
  92         OFFSET(pbe_next, pbe, next);
  93
  94         /* Offset from the sysenter stack to tss.sp0 */
  95         DEFINE(TSS_sysenter_sp0, offsetof(struct tss_struct, x86_tss.sp0) -
  96                  sizeof(struct tss_struct));
  97
  98         DEFINE(PAGE_SIZE_asm, PAGE_SIZE);
  99         DEFINE(PAGE_SHIFT_asm, PAGE_SHIFT);
 100         DEFINE(PTRS_PER_PTE, PTRS_PER_PTE);
 101         DEFINE(PTRS_PER_PMD, PTRS_PER_PMD);
 102         DEFINE(PTRS_PER_PGD, PTRS_PER_PGD);
 103
 104         OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx);
 105
 106 #ifdef CONFIG_PARAVIRT
 107         BLANK();
 108         OFFSET(PARAVIRT_enabled, pv_info, paravirt_enabled);
 109         OFFSET(PARAVIRT_PATCH_pv_cpu_ops, paravirt_patch_template, pv_cpu_ops);
 110         OFFSET(PARAVIRT_PATCH_pv_irq_ops, paravirt_patch_template, pv_irq_ops);
 111         OFFSET(PV_IRQ_irq_disable, pv_irq_ops, irq_disable);
 112         OFFSET(PV_IRQ_irq_enable, pv_irq_ops, irq_enable);
 113         OFFSET(PV_CPU_iret, pv_cpu_ops, iret);
 114         OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit);
 115         OFFSET(PV_CPU_read_cr0, pv_cpu_ops, read_cr0);
 116 #endif
 117
 118 #ifdef CONFIG_XEN
 119         BLANK();
 120         OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask);
 121         OFFSET(XEN_vcpu_info_pending, vcpu_info, evtchn_upcall_pending);
 122 #endif
 123
 124 #if defined(CONFIG_LGUEST) || defined(CONFIG_LGUEST_GUEST) || defined(CONFIG_LGUEST_MODULE)
 125         BLANK();
 126         OFFSET(LGUEST_DATA_irq_enabled, lguest_data, irq_enabled);
 127         OFFSET(LGUEST_DATA_pgdir, lguest_data, pgdir);
 128
 129         BLANK();
 130         OFFSET(LGUEST_PAGES_host_gdt_desc, lguest_pages, state.host_gdt_desc);
 131         OFFSET(LGUEST_PAGES_host_idt_desc, lguest_pages, state.host_idt_desc);
 132         OFFSET(LGUEST_PAGES_host_cr3, lguest_pages, state.host_cr3);
 133         OFFSET(LGUEST_PAGES_host_sp, lguest_pages, state.host_sp);
 134         OFFSET(LGUEST_PAGES_guest_gdt_desc, lguest_pages,state.guest_gdt_desc);
 135         OFFSET(LGUEST_PAGES_guest_idt_desc, lguest_pages,state.guest_idt_desc);
 136         OFFSET(LGUEST_PAGES_guest_gdt, lguest_pages, state.guest_gdt);
 137         OFFSET(LGUEST_PAGES_regs_trapnum, lguest_pages, regs.trapnum);
 138         OFFSET(LGUEST_PAGES_regs_errcode, lguest_pages, regs.errcode);
 139         OFFSET(LGUEST_PAGES_regs, lguest_pages, regs);
 140 #endif
 141
 142         BLANK();
 143         OFFSET(BP_scratch, boot_params, scratch);
 144         OFFSET(BP_loadflags, boot_params, hdr.loadflags);
 145         OFFSET(BP_hardware_subarch, boot_params, hdr.hardware_subarch);
 146         OFFSET(BP_version, boot_params, hdr.version);
 147 }