in kernel/traps_64.c [2839:2926]
void __init trap_init(void)
{
/* Compile time sanity check. */
BUILD_BUG_ON(TI_TASK != offsetof(struct thread_info, task) ||
TI_FLAGS != offsetof(struct thread_info, flags) ||
TI_CPU != offsetof(struct thread_info, cpu) ||
TI_FPSAVED != offsetof(struct thread_info, fpsaved) ||
TI_KSP != offsetof(struct thread_info, ksp) ||
TI_FAULT_ADDR != offsetof(struct thread_info,
fault_address) ||
TI_KREGS != offsetof(struct thread_info, kregs) ||
TI_UTRAPS != offsetof(struct thread_info, utraps) ||
TI_REG_WINDOW != offsetof(struct thread_info,
reg_window) ||
TI_RWIN_SPTRS != offsetof(struct thread_info,
rwbuf_stkptrs) ||
TI_GSR != offsetof(struct thread_info, gsr) ||
TI_XFSR != offsetof(struct thread_info, xfsr) ||
TI_PRE_COUNT != offsetof(struct thread_info,
preempt_count) ||
TI_NEW_CHILD != offsetof(struct thread_info, new_child) ||
TI_CURRENT_DS != offsetof(struct thread_info,
current_ds) ||
TI_KUNA_REGS != offsetof(struct thread_info,
kern_una_regs) ||
TI_KUNA_INSN != offsetof(struct thread_info,
kern_una_insn) ||
TI_FPREGS != offsetof(struct thread_info, fpregs) ||
(TI_FPREGS & (64 - 1)));
BUILD_BUG_ON(TRAP_PER_CPU_THREAD != offsetof(struct trap_per_cpu,
thread) ||
(TRAP_PER_CPU_PGD_PADDR !=
offsetof(struct trap_per_cpu, pgd_paddr)) ||
(TRAP_PER_CPU_CPU_MONDO_PA !=
offsetof(struct trap_per_cpu, cpu_mondo_pa)) ||
(TRAP_PER_CPU_DEV_MONDO_PA !=
offsetof(struct trap_per_cpu, dev_mondo_pa)) ||
(TRAP_PER_CPU_RESUM_MONDO_PA !=
offsetof(struct trap_per_cpu, resum_mondo_pa)) ||
(TRAP_PER_CPU_RESUM_KBUF_PA !=
offsetof(struct trap_per_cpu, resum_kernel_buf_pa)) ||
(TRAP_PER_CPU_NONRESUM_MONDO_PA !=
offsetof(struct trap_per_cpu, nonresum_mondo_pa)) ||
(TRAP_PER_CPU_NONRESUM_KBUF_PA !=
offsetof(struct trap_per_cpu, nonresum_kernel_buf_pa)) ||
(TRAP_PER_CPU_FAULT_INFO !=
offsetof(struct trap_per_cpu, fault_info)) ||
(TRAP_PER_CPU_CPU_MONDO_BLOCK_PA !=
offsetof(struct trap_per_cpu, cpu_mondo_block_pa)) ||
(TRAP_PER_CPU_CPU_LIST_PA !=
offsetof(struct trap_per_cpu, cpu_list_pa)) ||
(TRAP_PER_CPU_TSB_HUGE !=
offsetof(struct trap_per_cpu, tsb_huge)) ||
(TRAP_PER_CPU_TSB_HUGE_TEMP !=
offsetof(struct trap_per_cpu, tsb_huge_temp)) ||
(TRAP_PER_CPU_IRQ_WORKLIST_PA !=
offsetof(struct trap_per_cpu, irq_worklist_pa)) ||
(TRAP_PER_CPU_CPU_MONDO_QMASK !=
offsetof(struct trap_per_cpu, cpu_mondo_qmask)) ||
(TRAP_PER_CPU_DEV_MONDO_QMASK !=
offsetof(struct trap_per_cpu, dev_mondo_qmask)) ||
(TRAP_PER_CPU_RESUM_QMASK !=
offsetof(struct trap_per_cpu, resum_qmask)) ||
(TRAP_PER_CPU_NONRESUM_QMASK !=
offsetof(struct trap_per_cpu, nonresum_qmask)) ||
(TRAP_PER_CPU_PER_CPU_BASE !=
offsetof(struct trap_per_cpu, __per_cpu_base)));
BUILD_BUG_ON((TSB_CONFIG_TSB !=
offsetof(struct tsb_config, tsb)) ||
(TSB_CONFIG_RSS_LIMIT !=
offsetof(struct tsb_config, tsb_rss_limit)) ||
(TSB_CONFIG_NENTRIES !=
offsetof(struct tsb_config, tsb_nentries)) ||
(TSB_CONFIG_REG_VAL !=
offsetof(struct tsb_config, tsb_reg_val)) ||
(TSB_CONFIG_MAP_VADDR !=
offsetof(struct tsb_config, tsb_map_vaddr)) ||
(TSB_CONFIG_MAP_PTE !=
offsetof(struct tsb_config, tsb_map_pte)));
/* Attach to the address space of init_task. On SMP we
* do this in smp.c:smp_callin for other cpus.
*/
mmgrab(&init_mm);
current->active_mm = &init_mm;
}