LXR linux/arch/x86/kernel/asm-offsets.c

   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * Generate definitions needed by assembly language modules.
   4 * This code generates raw asm output which is post-processed to extract
   5 * and format the required data.
   6 */
   7#define COMPILE_OFFSETS
   8
   9#include <linux/crypto.h>
  10#include <linux/sched.h>
  11#include <linux/stddef.h>
  12#include <linux/hardirq.h>
  13#include <linux/suspend.h>
  14#include <linux/kbuild.h>
  15#include <asm/processor.h>
  16#include <asm/thread_info.h>
  17#include <asm/sigframe.h>
  18#include <asm/bootparam.h>
  19#include <asm/suspend.h>
  20#include <asm/tlbflush.h>
  21
  22#ifdef CONFIG_XEN
  23#include <xen/interface/xen.h>
  24#endif
  25
  26#ifdef CONFIG_X86_32
  27# include "asm-offsets_32.c"
  28#else
  29# include "asm-offsets_64.c"
  30#endif
  31
  32void common(void) {
  33        BLANK();
  34        OFFSET(TASK_threadsp, task_struct, thread.sp);
  35#ifdef CONFIG_CC_STACKPROTECTOR
  36        OFFSET(TASK_stack_canary, task_struct, stack_canary);
  37#endif
  38
  39        BLANK();
  40        OFFSET(TASK_TI_flags, task_struct, thread_info.flags);
  41        OFFSET(TASK_addr_limit, task_struct, thread.addr_limit);
  42
  43        BLANK();
  44        OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx);
  45
  46        BLANK();
  47        OFFSET(pbe_address, pbe, address);
  48        OFFSET(pbe_orig_address, pbe, orig_address);
  49        OFFSET(pbe_next, pbe, next);
  50
  51#if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION)
  52        BLANK();
  53        OFFSET(IA32_SIGCONTEXT_ax, sigcontext_32, ax);
  54        OFFSET(IA32_SIGCONTEXT_bx, sigcontext_32, bx);
  55        OFFSET(IA32_SIGCONTEXT_cx, sigcontext_32, cx);
  56        OFFSET(IA32_SIGCONTEXT_dx, sigcontext_32, dx);
  57        OFFSET(IA32_SIGCONTEXT_si, sigcontext_32, si);
  58        OFFSET(IA32_SIGCONTEXT_di, sigcontext_32, di);
  59        OFFSET(IA32_SIGCONTEXT_bp, sigcontext_32, bp);
  60        OFFSET(IA32_SIGCONTEXT_sp, sigcontext_32, sp);
  61        OFFSET(IA32_SIGCONTEXT_ip, sigcontext_32, ip);
  62
  63        BLANK();
  64        OFFSET(IA32_RT_SIGFRAME_sigcontext, rt_sigframe_ia32, uc.uc_mcontext);
  65#endif
  66
  67#ifdef CONFIG_PARAVIRT
  68        BLANK();
  69        OFFSET(PARAVIRT_PATCH_pv_cpu_ops, paravirt_patch_template, pv_cpu_ops);
  70        OFFSET(PARAVIRT_PATCH_pv_irq_ops, paravirt_patch_template, pv_irq_ops);
  71        OFFSET(PV_IRQ_irq_disable, pv_irq_ops, irq_disable);
  72        OFFSET(PV_IRQ_irq_enable, pv_irq_ops, irq_enable);
  73        OFFSET(PV_CPU_iret, pv_cpu_ops, iret);
  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_secure_boot, boot_params, secure_boot);
  87        OFFSET(BP_loadflags, boot_params, hdr.loadflags);
  88        OFFSET(BP_hardware_subarch, boot_params, hdr.hardware_subarch);
  89        OFFSET(BP_version, boot_params, hdr.version);
  90        OFFSET(BP_kernel_alignment, boot_params, hdr.kernel_alignment);
  91        OFFSET(BP_init_size, boot_params, hdr.init_size);
  92        OFFSET(BP_pref_address, boot_params, hdr.pref_address);
  93        OFFSET(BP_code32_start, boot_params, hdr.code32_start);
  94
  95        BLANK();
  96        DEFINE(PTREGS_SIZE, sizeof(struct pt_regs));
  97
  98        /* TLB state for the entry code */
  99        OFFSET(TLB_STATE_user_pcid_flush_mask, tlb_state, user_pcid_flush_mask);
 100
 101        /* Layout info for cpu_entry_area */
 102        OFFSET(CPU_ENTRY_AREA_tss, cpu_entry_area, tss);
 103        OFFSET(CPU_ENTRY_AREA_entry_trampoline, cpu_entry_area, entry_trampoline);
 104        OFFSET(CPU_ENTRY_AREA_entry_stack, cpu_entry_area, entry_stack_page);
 105        DEFINE(SIZEOF_entry_stack, sizeof(struct entry_stack));
 106}
 107