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 <asm/ucontext.h> 13 #include "sigframe_32.h" 14 #include <asm/pgtable.h> 15 #include <asm/fixmap.h> 16 #include <asm/processor.h> 17 #include <asm/thread_info.h> 18 #include <asm/bootparam.h> 19 #include <asm/elf.h> 20 21 #include <xen/interface/xen.h> 22 23 #ifdef CONFIG_LGUEST_GUEST 24 #include <linux/lguest.h> 25 #include "../../../drivers/lguest/lg.h" 26 #endif 27 28 #define DEFINE(sym, val) \ 29 asm volatile("\n->" #sym " %0 " #val : : "i" (val)) 30 31 #define BLANK() asm volatile("\n->" : : ) 32 33 #define OFFSET(sym, str, mem) \ 34 DEFINE(sym, offsetof(struct str, mem)); 35 36 /* workaround for a warning with -Wmissing-prototypes */ 37 void foo(void); 38 39 void foo(void) 40 { 41 OFFSET(IA32_SIGCONTEXT_ax, sigcontext, ax); 42 OFFSET(IA32_SIGCONTEXT_bx, sigcontext, bx); 43 OFFSET(IA32_SIGCONTEXT_cx, sigcontext, cx); 44 OFFSET(IA32_SIGCONTEXT_dx, sigcontext, dx); 45 OFFSET(IA32_SIGCONTEXT_si, sigcontext, si); 46 OFFSET(IA32_SIGCONTEXT_di, sigcontext, di); 47 OFFSET(IA32_SIGCONTEXT_bp, sigcontext, bp); 48 OFFSET(IA32_SIGCONTEXT_sp, sigcontext, sp); 49 OFFSET(IA32_SIGCONTEXT_ip, sigcontext, ip); 50 BLANK(); 51 52 OFFSET(CPUINFO_x86, cpuinfo_x86, x86); 53 OFFSET(CPUINFO_x86_vendor, cpuinfo_x86, x86_vendor); 54 OFFSET(CPUINFO_x86_model, cpuinfo_x86, x86_model); 55 OFFSET(CPUINFO_x86_mask, cpuinfo_x86, x86_mask); 56 OFFSET(CPUINFO_hard_math, cpuinfo_x86, hard_math); 57 OFFSET(CPUINFO_cpuid_level, cpuinfo_x86, cpuid_level); 58 OFFSET(CPUINFO_x86_capability, cpuinfo_x86, x86_capability); 59 OFFSET(CPUINFO_x86_vendor_id, cpuinfo_x86, x86_vendor_id); 60 BLANK(); 61 62 OFFSET(TI_task, thread_info, task); 63 OFFSET(TI_exec_domain, thread_info, exec_domain); 64 OFFSET(TI_flags, thread_info, flags); 65 OFFSET(TI_status, thread_info, status); 66 OFFSET(TI_preempt_count, thread_info, preempt_count); 67 OFFSET(TI_addr_limit, thread_info, addr_limit); 68 OFFSET(TI_restart_block, thread_info, restart_block); 69 OFFSET(TI_sysenter_return, thread_info, sysenter_return); 70 OFFSET(TI_cpu, thread_info, cpu); 71 BLANK(); 72 73 OFFSET(GDS_size, Xgt_desc_struct, size); 74 OFFSET(GDS_address, Xgt_desc_struct, address); 75 OFFSET(GDS_pad, Xgt_desc_struct, pad); 76 BLANK(); 77 78 OFFSET(PT_EBX, pt_regs, bx); 79 OFFSET(PT_ECX, pt_regs, cx); 80 OFFSET(PT_EDX, pt_regs, dx); 81 OFFSET(PT_ESI, pt_regs, si); 82 OFFSET(PT_EDI, pt_regs, di); 83 OFFSET(PT_EBP, pt_regs, bp); 84 OFFSET(PT_EAX, pt_regs, ax); 85 OFFSET(PT_DS, pt_regs, ds); 86 OFFSET(PT_ES, pt_regs, es); 87 OFFSET(PT_FS, pt_regs, fs); 88 OFFSET(PT_ORIG_EAX, pt_regs, orig_ax); 89 OFFSET(PT_EIP, pt_regs, ip); 90 OFFSET(PT_CS, pt_regs, cs); 91 OFFSET(PT_EFLAGS, pt_regs, flags); 92 OFFSET(PT_OLDESP, pt_regs, sp); 93 OFFSET(PT_OLDSS, pt_regs, ss); 94 BLANK(); 95 96 OFFSET(EXEC_DOMAIN_handler, exec_domain, handler); 97 OFFSET(IA32_RT_SIGFRAME_sigcontext, rt_sigframe, uc.uc_mcontext); 98 BLANK(); 99 100 OFFSET(pbe_address, pbe, address); 101 OFFSET(pbe_orig_address, pbe, orig_address); 102 OFFSET(pbe_next, pbe, next); 103 104 /* Offset from the sysenter stack to tss.sp0 */ 105 DEFINE(TSS_sysenter_sp0, offsetof(struct tss_struct, x86_tss.sp0) - 106 sizeof(struct tss_struct)); 107 108 DEFINE(PAGE_SIZE_asm, PAGE_SIZE); 109 DEFINE(PAGE_SHIFT_asm, PAGE_SHIFT); 110 DEFINE(PTRS_PER_PTE, PTRS_PER_PTE); 111 DEFINE(PTRS_PER_PMD, PTRS_PER_PMD); 112 DEFINE(PTRS_PER_PGD, PTRS_PER_PGD); 113 114 OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx); 115 116 #ifdef CONFIG_PARAVIRT 117 BLANK(); 118 OFFSET(PARAVIRT_enabled, pv_info, paravirt_enabled); 119 OFFSET(PARAVIRT_PATCH_pv_cpu_ops, paravirt_patch_template, pv_cpu_ops); 120 OFFSET(PARAVIRT_PATCH_pv_irq_ops, paravirt_patch_template, pv_irq_ops); 121 OFFSET(PV_IRQ_irq_disable, pv_irq_ops, irq_disable); 122 OFFSET(PV_IRQ_irq_enable, pv_irq_ops, irq_enable); 123 OFFSET(PV_CPU_iret, pv_cpu_ops, iret); 124 OFFSET(PV_CPU_irq_enable_syscall_ret, pv_cpu_ops, irq_enable_syscall_ret); 125 OFFSET(PV_CPU_read_cr0, pv_cpu_ops, read_cr0); 126 #endif 127 128 #ifdef CONFIG_XEN 129 BLANK(); 130 OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask); 131 OFFSET(XEN_vcpu_info_pending, vcpu_info, evtchn_upcall_pending); 132 #endif 133 134 #ifdef CONFIG_LGUEST_GUEST 135 BLANK(); 136 OFFSET(LGUEST_DATA_irq_enabled, lguest_data, irq_enabled); 137 OFFSET(LGUEST_DATA_pgdir, lguest_data, pgdir); 138 OFFSET(LGUEST_PAGES_host_gdt_desc, lguest_pages, state.host_gdt_desc); 139 OFFSET(LGUEST_PAGES_host_idt_desc, lguest_pages, state.host_idt_desc); 140 OFFSET(LGUEST_PAGES_host_cr3, lguest_pages, state.host_cr3); 141 OFFSET(LGUEST_PAGES_host_sp, lguest_pages, state.host_sp); 142 OFFSET(LGUEST_PAGES_guest_gdt_desc, lguest_pages,state.guest_gdt_desc); 143 OFFSET(LGUEST_PAGES_guest_idt_desc, lguest_pages,state.guest_idt_desc); 144 OFFSET(LGUEST_PAGES_guest_gdt, lguest_pages, state.guest_gdt); 145 OFFSET(LGUEST_PAGES_regs_trapnum, lguest_pages, regs.trapnum); 146 OFFSET(LGUEST_PAGES_regs_errcode, lguest_pages, regs.errcode); 147 OFFSET(LGUEST_PAGES_regs, lguest_pages, regs); 148 #endif 149 150 BLANK(); 151 OFFSET(BP_scratch, boot_params, scratch); 152 OFFSET(BP_loadflags, boot_params, hdr.loadflags); 153 OFFSET(BP_hardware_subarch, boot_params, hdr.hardware_subarch); 154 OFFSET(BP_version, boot_params, hdr.version); 155 } 156