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/elf.h> 19 20 #include <xen/interface/xen.h> 21 22 #ifdef CONFIG_LGUEST_GUEST 23 #include <linux/lguest.h> 24 #include "../../../drivers/lguest/lg.h" 25 #endif 26 27 #define DEFINE(sym, val) \ 28 asm volatile("\n->" #sym " %0 " #val : : "i" (val)) 29 30 #define BLANK() asm volatile("\n->" : : ) 31 32 #define OFFSET(sym, str, mem) \ 33 DEFINE(sym, offsetof(struct str, mem)); 34 35 /* workaround for a warning with -Wmissing-prototypes */ 36 void foo(void); 37 38 void foo(void) 39 { 40 OFFSET(SIGCONTEXT_eax, sigcontext, eax); 41 OFFSET(SIGCONTEXT_ebx, sigcontext, ebx); 42 OFFSET(SIGCONTEXT_ecx, sigcontext, ecx); 43 OFFSET(SIGCONTEXT_edx, sigcontext, edx); 44 OFFSET(SIGCONTEXT_esi, sigcontext, esi); 45 OFFSET(SIGCONTEXT_edi, sigcontext, edi); 46 OFFSET(SIGCONTEXT_ebp, sigcontext, ebp); 47 OFFSET(SIGCONTEXT_esp, sigcontext, esp); 48 OFFSET(SIGCONTEXT_eip, sigcontext, eip); 49 BLANK(); 50 51 OFFSET(CPUINFO_x86, cpuinfo_x86, x86); 52 OFFSET(CPUINFO_x86_vendor, cpuinfo_x86, x86_vendor); 53 OFFSET(CPUINFO_x86_model, cpuinfo_x86, x86_model); 54 OFFSET(CPUINFO_x86_mask, cpuinfo_x86, x86_mask); 55 OFFSET(CPUINFO_hard_math, cpuinfo_x86, hard_math); 56 OFFSET(CPUINFO_cpuid_level, cpuinfo_x86, cpuid_level); 57 OFFSET(CPUINFO_x86_capability, cpuinfo_x86, x86_capability); 58 OFFSET(CPUINFO_x86_vendor_id, cpuinfo_x86, x86_vendor_id); 59 BLANK(); 60 61 OFFSET(TI_task, thread_info, task); 62 OFFSET(TI_exec_domain, thread_info, exec_domain); 63 OFFSET(TI_flags, thread_info, flags); 64 OFFSET(TI_status, thread_info, status); 65 OFFSET(TI_preempt_count, thread_info, preempt_count); 66 OFFSET(TI_addr_limit, thread_info, addr_limit); 67 OFFSET(TI_restart_block, thread_info, restart_block); 68 OFFSET(TI_sysenter_return, thread_info, sysenter_return); 69 OFFSET(TI_cpu, thread_info, cpu); 70 BLANK(); 71 72 OFFSET(GDS_size, Xgt_desc_struct, size); 73 OFFSET(GDS_address, Xgt_desc_struct, address); 74 OFFSET(GDS_pad, Xgt_desc_struct, pad); 75 BLANK(); 76 77 OFFSET(PT_EBX, pt_regs, ebx); 78 OFFSET(PT_ECX, pt_regs, ecx); 79 OFFSET(PT_EDX, pt_regs, edx); 80 OFFSET(PT_ESI, pt_regs, esi); 81 OFFSET(PT_EDI, pt_regs, edi); 82 OFFSET(PT_EBP, pt_regs, ebp); 83 OFFSET(PT_EAX, pt_regs, eax); 84 OFFSET(PT_DS, pt_regs, xds); 85 OFFSET(PT_ES, pt_regs, xes); 86 OFFSET(PT_FS, pt_regs, xfs); 87 OFFSET(PT_ORIG_EAX, pt_regs, orig_eax); 88 OFFSET(PT_EIP, pt_regs, eip); 89 OFFSET(PT_CS, pt_regs, xcs); 90 OFFSET(PT_EFLAGS, pt_regs, eflags); 91 OFFSET(PT_OLDESP, pt_regs, esp); 92 OFFSET(PT_OLDSS, pt_regs, xss); 93 BLANK(); 94 95 OFFSET(EXEC_DOMAIN_handler, exec_domain, handler); 96 OFFSET(RT_SIGFRAME_sigcontext, rt_sigframe, uc.uc_mcontext); 97 BLANK(); 98 99 OFFSET(pbe_address, pbe, address); 100 OFFSET(pbe_orig_address, pbe, orig_address); 101 OFFSET(pbe_next, pbe, next); 102 103 /* Offset from the sysenter stack to tss.esp0 */ 104 DEFINE(TSS_sysenter_esp0, offsetof(struct tss_struct, x86_tss.esp0) - 105 sizeof(struct tss_struct)); 106 107 DEFINE(PAGE_SIZE_asm, PAGE_SIZE); 108 DEFINE(PAGE_SHIFT_asm, PAGE_SHIFT); 109 DEFINE(PTRS_PER_PTE, PTRS_PER_PTE); 110 DEFINE(PTRS_PER_PMD, PTRS_PER_PMD); 111 DEFINE(PTRS_PER_PGD, PTRS_PER_PGD); 112 113 DEFINE(VDSO_PRELINK_asm, VDSO_PRELINK); 114 115 OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx); 116 117 #ifdef CONFIG_PARAVIRT 118 BLANK(); 119 OFFSET(PARAVIRT_enabled, pv_info, paravirt_enabled); 120 OFFSET(PARAVIRT_PATCH_pv_cpu_ops, paravirt_patch_template, pv_cpu_ops); 121 OFFSET(PARAVIRT_PATCH_pv_irq_ops, paravirt_patch_template, pv_irq_ops); 122 OFFSET(PV_IRQ_irq_disable, pv_irq_ops, irq_disable); 123 OFFSET(PV_IRQ_irq_enable, pv_irq_ops, irq_enable); 124 OFFSET(PV_CPU_iret, pv_cpu_ops, iret); 125 OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit); 126 OFFSET(PV_CPU_read_cr0, pv_cpu_ops, read_cr0); 127 #endif 128 129 #ifdef CONFIG_XEN 130 BLANK(); 131 OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask); 132 OFFSET(XEN_vcpu_info_pending, vcpu_info, evtchn_upcall_pending); 133 #endif 134 135 #ifdef CONFIG_LGUEST_GUEST 136 BLANK(); 137 OFFSET(LGUEST_DATA_irq_enabled, lguest_data, irq_enabled); 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