target/linux/ubicom32/files/arch/ubicom32/kernel/asm-offsets.c

   1 /*
   2  * arch/ubicom32/kernel/asm-offsets.c
   3  *   Ubicom32 architecture definitions needed by assembly language modules.
   4  *
   5  * (C) Copyright 2009, Ubicom, Inc.
   6  *
   7  * This file is part of the Ubicom32 Linux Kernel Port.
   8  *
   9  * The Ubicom32 Linux Kernel Port is free software: you can redistribute
  10  * it and/or modify it under the terms of the GNU General Public License
  11  * as published by the Free Software Foundation, either version 2 of the
  12  * License, or (at your option) any later version.
  13  *
  14  * The Ubicom32 Linux Kernel Port is distributed in the hope that it
  15  * will be useful, but WITHOUT ANY WARRANTY; without even the implied
  16  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
  17  * the GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with the Ubicom32 Linux Kernel Port.  If not,
  21  * see <http://www.gnu.org/licenses/>.
  22  *
  23  * Ubicom32 implementation derived from (with many thanks):
  24  *   arch/m68knommu
  25  *   arch/blackfin
  26  *   arch/parisc
  27  */
  28 /*
  29  * This program is used to generate definitions needed by
  30  * assembly language modules.
  31  *
  32  * We use the technique used in the OSF Mach kernel code:
  33  * generate asm statements containing #defines,
  34  * compile this file to assembler, and then extract the
  35  * #defines from the assembly-language output.
  36  */
  37
  38 #include <linux/module.h>
  39 #include <linux/stddef.h>
  40 #include <linux/sched.h>
  41 #include <linux/kernel_stat.h>
  42 #include <linux/ptrace.h>
  43 #include <linux/hardirq.h>
  44 #include <asm/bootinfo.h>
  45 #include <asm/irq.h>
  46 #include <asm/thread_info.h>
  47
  48 #define DEFINE(sym, val) \
  49         asm volatile("\n->" #sym " %0 " #val : : "i" (val))
  50
  51 #define BLANK() asm volatile("\n->" : : )
  52
  53 int main(void)
  54 {
  55         /* offsets into the task struct */
  56         DEFINE(TASK_STATE, offsetof(struct task_struct, state));
  57         DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags));
  58         DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace));
  59         DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked));
  60         DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
  61         DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, stack));
  62         DEFINE(TASK_MM, offsetof(struct task_struct, mm));
  63         DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
  64
  65         /* offsets into the kernel_stat struct */
  66 //      DEFINE(STAT_IRQ, offsetof(struct kernel_stat, irqs));
  67
  68         /* offsets into the irq_cpustat_t struct */
  69         DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending));
  70
  71         /* offsets into the thread struct */
  72         DEFINE(THREAD_D10, offsetof(struct thread_struct, d10));
  73         DEFINE(THREAD_D11, offsetof(struct thread_struct, d11));
  74         DEFINE(THREAD_D12, offsetof(struct thread_struct, d12));
  75         DEFINE(THREAD_D13, offsetof(struct thread_struct, d13));
  76         DEFINE(THREAD_A1, offsetof(struct thread_struct, a1));
  77         DEFINE(THREAD_A2, offsetof(struct thread_struct, a2));
  78         DEFINE(THREAD_A5, offsetof(struct thread_struct, a5));
  79         DEFINE(THREAD_A6, offsetof(struct thread_struct, a6));
  80         DEFINE(THREAD_SP, offsetof(struct thread_struct, sp));
  81
  82         /* offsets into the pt_regs */
  83         DEFINE(PT_D0, offsetof(struct pt_regs, dn[0]));
  84         DEFINE(PT_D1, offsetof(struct pt_regs, dn[1]));
  85         DEFINE(PT_D2, offsetof(struct pt_regs, dn[2]));
  86         DEFINE(PT_D3, offsetof(struct pt_regs, dn[3]));
  87         DEFINE(PT_D4, offsetof(struct pt_regs, dn[4]));
  88         DEFINE(PT_D5, offsetof(struct pt_regs, dn[5]));
  89         DEFINE(PT_D6, offsetof(struct pt_regs, dn[6]));
  90         DEFINE(PT_D7, offsetof(struct pt_regs, dn[7]));
  91         DEFINE(PT_D8, offsetof(struct pt_regs, dn[8]));
  92         DEFINE(PT_D9, offsetof(struct pt_regs, dn[9]));
  93         DEFINE(PT_D10, offsetof(struct pt_regs, dn[10]));
  94         DEFINE(PT_D11, offsetof(struct pt_regs, dn[11]));
  95         DEFINE(PT_D12, offsetof(struct pt_regs, dn[12]));
  96         DEFINE(PT_D13, offsetof(struct pt_regs, dn[13]));
  97         DEFINE(PT_D14, offsetof(struct pt_regs, dn[14]));
  98         DEFINE(PT_D15, offsetof(struct pt_regs, dn[15]));
  99         DEFINE(PT_A0, offsetof(struct pt_regs, an[0]));
 100         DEFINE(PT_A1, offsetof(struct pt_regs, an[1]));
 101         DEFINE(PT_A2, offsetof(struct pt_regs, an[2]));
 102         DEFINE(PT_A3, offsetof(struct pt_regs, an[3]));
 103         DEFINE(PT_A4, offsetof(struct pt_regs, an[4]));
 104         DEFINE(PT_A5, offsetof(struct pt_regs, an[5]));
 105         DEFINE(PT_A6, offsetof(struct pt_regs, an[6]));
 106         DEFINE(PT_A7, offsetof(struct pt_regs, an[7]));
 107         DEFINE(PT_SP, offsetof(struct pt_regs, an[7]));
 108
 109         DEFINE(PT_ACC0HI, offsetof(struct pt_regs, acc0[0]));
 110         DEFINE(PT_ACC0LO, offsetof(struct pt_regs, acc0[1]));
 111         DEFINE(PT_MAC_RC16, offsetof(struct pt_regs, mac_rc16));
 112
 113         DEFINE(PT_ACC1HI, offsetof(struct pt_regs, acc1[0]));
 114         DEFINE(PT_ACC1LO, offsetof(struct pt_regs, acc1[1]));
 115
 116         DEFINE(PT_SOURCE3, offsetof(struct pt_regs, source3));
 117         DEFINE(PT_INST_CNT, offsetof(struct pt_regs, inst_cnt));
 118         DEFINE(PT_CSR, offsetof(struct pt_regs, csr));
 119         DEFINE(PT_DUMMY_UNUSED, offsetof(struct pt_regs, dummy_unused));
 120
 121         DEFINE(PT_INT_MASK0, offsetof(struct pt_regs, int_mask0));
 122         DEFINE(PT_INT_MASK1, offsetof(struct pt_regs, int_mask1));
 123
 124         DEFINE(PT_PC, offsetof(struct pt_regs, pc));
 125
 126         DEFINE(PT_TRAP_CAUSE, offsetof(struct pt_regs, trap_cause));
 127
 128         DEFINE(PT_SIZE, sizeof(struct pt_regs));
 129
 130         DEFINE(PT_FRAME_TYPE, offsetof(struct pt_regs, frame_type));
 131
 132         DEFINE(PT_ORIGINAL_D0, offsetof(struct pt_regs, original_dn_0));
 133         DEFINE(PT_PREVIOUS_PC, offsetof(struct pt_regs, previous_pc));
 134
 135         /* offsets into the kernel_stat struct */
 136 //      DEFINE(STAT_IRQ, offsetof(struct kernel_stat, irqs));
 137
 138         /* signal defines */
 139         DEFINE(SIGSEGV, SIGSEGV);
 140         //DEFINE(SEGV_MAPERR, SEGV_MAPERR);
 141         DEFINE(SIGTRAP, SIGTRAP);
 142         //DEFINE(TRAP_TRACE, TRAP_TRACE);
 143
 144         DEFINE(PT_PTRACED, PT_PTRACED);
 145         DEFINE(PT_DTRACE, PT_DTRACE);
 146
 147         DEFINE(ASM_THREAD_SIZE, THREAD_SIZE);
 148
 149         /* Offsets in thread_info structure */
 150         DEFINE(TI_TASK, offsetof(struct thread_info, task));
 151         DEFINE(TI_EXECDOMAIN, offsetof(struct thread_info, exec_domain));
 152         DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
 153         DEFINE(TI_PREEMPTCOUNT, offsetof(struct thread_info, preempt_count));
 154         DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
 155         DEFINE(TI_INTR_NESTING, offsetof(struct thread_info, interrupt_nesting));
 156         DEFINE(ASM_TIF_NEED_RESCHED, TIF_NEED_RESCHED);
 157         DEFINE(ASM_TIF_SYSCALL_TRACE, TIF_SYSCALL_TRACE);
 158         DEFINE(ASM_TIF_SIGPENDING, TIF_SIGPENDING);
 159
 160         return 0;
 161 }