LXR linux/arch/m68k/kernel/asm-offsets.c

   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * This program is used to generate definitions needed by
   4 * assembly language modules.
   5 *
   6 * We use the technique used in the OSF Mach kernel code:
   7 * generate asm statements containing #defines,
   8 * compile this file to assembler, and then extract the
   9 * #defines from the assembly-language output.
  10 */
  11
  12#define ASM_OFFSETS_C
  13
  14#include <linux/stddef.h>
  15#include <linux/sched.h>
  16#include <linux/kernel_stat.h>
  17#include <linux/kbuild.h>
  18#include <asm/bootinfo.h>
  19#include <asm/irq.h>
  20#include <asm/amigahw.h>
  21#include <linux/font.h>
  22
  23int main(void)
  24{
  25        /* offsets into the task struct */
  26        DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
  27        DEFINE(TASK_MM, offsetof(struct task_struct, mm));
  28        DEFINE(TASK_STACK, offsetof(struct task_struct, stack));
  29
  30        /* offsets into the thread struct */
  31        DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp));
  32        DEFINE(THREAD_USP, offsetof(struct thread_struct, usp));
  33        DEFINE(THREAD_SR, offsetof(struct thread_struct, sr));
  34        DEFINE(THREAD_FS, offsetof(struct thread_struct, fs));
  35        DEFINE(THREAD_CRP, offsetof(struct thread_struct, crp));
  36        DEFINE(THREAD_ESP0, offsetof(struct thread_struct, esp0));
  37        DEFINE(THREAD_FPREG, offsetof(struct thread_struct, fp));
  38        DEFINE(THREAD_FPCNTL, offsetof(struct thread_struct, fpcntl));
  39        DEFINE(THREAD_FPSTATE, offsetof(struct thread_struct, fpstate));
  40
  41        /* offsets into the thread_info struct */
  42        DEFINE(TINFO_PREEMPT, offsetof(struct thread_info, preempt_count));
  43        DEFINE(TINFO_FLAGS, offsetof(struct thread_info, flags));
  44
  45        /* offsets into the pt_regs */
  46        DEFINE(PT_OFF_D0, offsetof(struct pt_regs, d0));
  47        DEFINE(PT_OFF_ORIG_D0, offsetof(struct pt_regs, orig_d0));
  48        DEFINE(PT_OFF_D1, offsetof(struct pt_regs, d1));
  49        DEFINE(PT_OFF_D2, offsetof(struct pt_regs, d2));
  50        DEFINE(PT_OFF_D3, offsetof(struct pt_regs, d3));
  51        DEFINE(PT_OFF_D4, offsetof(struct pt_regs, d4));
  52        DEFINE(PT_OFF_D5, offsetof(struct pt_regs, d5));
  53        DEFINE(PT_OFF_A0, offsetof(struct pt_regs, a0));
  54        DEFINE(PT_OFF_A1, offsetof(struct pt_regs, a1));
  55        DEFINE(PT_OFF_A2, offsetof(struct pt_regs, a2));
  56        DEFINE(PT_OFF_PC, offsetof(struct pt_regs, pc));
  57        DEFINE(PT_OFF_SR, offsetof(struct pt_regs, sr));
  58
  59        /* bitfields are a bit difficult */
  60#ifdef CONFIG_COLDFIRE
  61        DEFINE(PT_OFF_FORMATVEC, offsetof(struct pt_regs, sr) - 2);
  62#else
  63        DEFINE(PT_OFF_FORMATVEC, offsetof(struct pt_regs, pc) + 4);
  64#endif
  65
  66        /* offsets into the irq_cpustat_t struct */
  67        DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending));
  68
  69        /* signal defines */
  70        DEFINE(LSIGSEGV, SIGSEGV);
  71        DEFINE(LSEGV_MAPERR, SEGV_MAPERR);
  72        DEFINE(LSIGTRAP, SIGTRAP);
  73        DEFINE(LTRAP_TRACE, TRAP_TRACE);
  74
  75#ifdef CONFIG_MMU
  76        /* offsets into the bi_record struct */
  77        DEFINE(BIR_TAG, offsetof(struct bi_record, tag));
  78        DEFINE(BIR_SIZE, offsetof(struct bi_record, size));
  79        DEFINE(BIR_DATA, offsetof(struct bi_record, data));
  80
  81        /* offsets into the font_desc struct */
  82        DEFINE(FONT_DESC_IDX, offsetof(struct font_desc, idx));
  83        DEFINE(FONT_DESC_NAME, offsetof(struct font_desc, name));
  84        DEFINE(FONT_DESC_WIDTH, offsetof(struct font_desc, width));
  85        DEFINE(FONT_DESC_HEIGHT, offsetof(struct font_desc, height));
  86        DEFINE(FONT_DESC_DATA, offsetof(struct font_desc, data));
  87        DEFINE(FONT_DESC_PREF, offsetof(struct font_desc, pref));
  88
  89        /* offsets into the custom struct */
  90        DEFINE(CUSTOMBASE, &amiga_custom);
  91        DEFINE(C_INTENAR, offsetof(struct CUSTOM, intenar));
  92        DEFINE(C_INTREQR, offsetof(struct CUSTOM, intreqr));
  93        DEFINE(C_INTENA, offsetof(struct CUSTOM, intena));
  94        DEFINE(C_INTREQ, offsetof(struct CUSTOM, intreq));
  95        DEFINE(C_SERDATR, offsetof(struct CUSTOM, serdatr));
  96        DEFINE(C_SERDAT, offsetof(struct CUSTOM, serdat));
  97        DEFINE(C_SERPER, offsetof(struct CUSTOM, serper));
  98        DEFINE(CIAABASE, &ciaa);
  99        DEFINE(CIABBASE, &ciab);
 100        DEFINE(C_PRA, offsetof(struct CIA, pra));
 101        DEFINE(ZTWOBASE, zTwoBase);
 102
 103        /* enum m68k_fixup_type */
 104        DEFINE(M68K_FIXUP_MEMOFFSET, m68k_fixup_memoffset);
 105#endif
 106
 107        return 0;
 108}
 109