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

https://bitbucket.org/evzijst/gittest
C | 109 lines | 76 code | 13 blank | 20 comment | 0 complexity | 329ac2587f3019f67486715e9f7d59d1 MD5 | raw file
  1/*
  2 * This program is used to generate definitions needed by
  3 * assembly language modules.
  4 *
  5 * We use the technique used in the OSF Mach kernel code:
  6 * generate asm statements containing #defines,
  7 * compile this file to assembler, and then extract the
  8 * #defines from the assembly-language output.
  9 */
 10
 11#include <linux/stddef.h>
 12#include <linux/sched.h>
 13#include <linux/kernel_stat.h>
 14#include <asm/bootinfo.h>
 15#include <asm/irq.h>
 16#include <asm/amigahw.h>
 17#include <linux/font.h>
 18
 19#define DEFINE(sym, val) \
 20	asm volatile("\n->" #sym " %0 " #val : : "i" (val))
 21
 22int main(void)
 23{
 24	/* offsets into the task struct */
 25	DEFINE(TASK_STATE, offsetof(struct task_struct, state));
 26	DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags));
 27	DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace));
 28	DEFINE(TASK_WORK, offsetof(struct task_struct, thread.work));
 29	DEFINE(TASK_NEEDRESCHED, offsetof(struct task_struct, thread.work.need_resched));
 30	DEFINE(TASK_SYSCALL_TRACE, offsetof(struct task_struct, thread.work.syscall_trace));
 31	DEFINE(TASK_SIGPENDING, offsetof(struct task_struct, thread.work.sigpending));
 32	DEFINE(TASK_NOTIFY_RESUME, offsetof(struct task_struct, thread.work.notify_resume));
 33	DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
 34	DEFINE(TASK_MM, offsetof(struct task_struct, mm));
 35	DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
 36
 37	/* offsets into the thread struct */
 38	DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp));
 39	DEFINE(THREAD_USP, offsetof(struct thread_struct, usp));
 40	DEFINE(THREAD_SR, offsetof(struct thread_struct, sr));
 41	DEFINE(THREAD_FS, offsetof(struct thread_struct, fs));
 42	DEFINE(THREAD_CRP, offsetof(struct thread_struct, crp));
 43	DEFINE(THREAD_ESP0, offsetof(struct thread_struct, esp0));
 44	DEFINE(THREAD_FPREG, offsetof(struct thread_struct, fp));
 45	DEFINE(THREAD_FPCNTL, offsetof(struct thread_struct, fpcntl));
 46	DEFINE(THREAD_FPSTATE, offsetof(struct thread_struct, fpstate));
 47
 48	/* offsets into the pt_regs */
 49	DEFINE(PT_D0, offsetof(struct pt_regs, d0));
 50	DEFINE(PT_ORIG_D0, offsetof(struct pt_regs, orig_d0));
 51	DEFINE(PT_D1, offsetof(struct pt_regs, d1));
 52	DEFINE(PT_D2, offsetof(struct pt_regs, d2));
 53	DEFINE(PT_D3, offsetof(struct pt_regs, d3));
 54	DEFINE(PT_D4, offsetof(struct pt_regs, d4));
 55	DEFINE(PT_D5, offsetof(struct pt_regs, d5));
 56	DEFINE(PT_A0, offsetof(struct pt_regs, a0));
 57	DEFINE(PT_A1, offsetof(struct pt_regs, a1));
 58	DEFINE(PT_A2, offsetof(struct pt_regs, a2));
 59	DEFINE(PT_PC, offsetof(struct pt_regs, pc));
 60	DEFINE(PT_SR, offsetof(struct pt_regs, sr));
 61	/* bitfields are a bit difficult */
 62	DEFINE(PT_VECTOR, offsetof(struct pt_regs, pc) + 4);
 63
 64	/* offsets into the irq_handler struct */
 65	DEFINE(IRQ_HANDLER, offsetof(struct irq_node, handler));
 66	DEFINE(IRQ_DEVID, offsetof(struct irq_node, dev_id));
 67	DEFINE(IRQ_NEXT, offsetof(struct irq_node, next));
 68
 69	/* offsets into the kernel_stat struct */
 70	DEFINE(STAT_IRQ, offsetof(struct kernel_stat, irqs));
 71
 72	/* offsets into the irq_cpustat_t struct */
 73	DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending));
 74
 75	/* offsets into the bi_record struct */
 76	DEFINE(BIR_TAG, offsetof(struct bi_record, tag));
 77	DEFINE(BIR_SIZE, offsetof(struct bi_record, size));
 78	DEFINE(BIR_DATA, offsetof(struct bi_record, data));
 79
 80	/* offsets into font_desc (drivers/video/console/font.h) */
 81	DEFINE(FONT_DESC_IDX, offsetof(struct font_desc, idx));
 82	DEFINE(FONT_DESC_NAME, offsetof(struct font_desc, name));
 83	DEFINE(FONT_DESC_WIDTH, offsetof(struct font_desc, width));
 84	DEFINE(FONT_DESC_HEIGHT, offsetof(struct font_desc, height));
 85	DEFINE(FONT_DESC_DATA, offsetof(struct font_desc, data));
 86	DEFINE(FONT_DESC_PREF, offsetof(struct font_desc, pref));
 87
 88	/* signal defines */
 89	DEFINE(SIGSEGV, SIGSEGV);
 90	DEFINE(SEGV_MAPERR, SEGV_MAPERR);
 91	DEFINE(SIGTRAP, SIGTRAP);
 92	DEFINE(TRAP_TRACE, TRAP_TRACE);
 93
 94	/* offsets into the custom struct */
 95	DEFINE(CUSTOMBASE, &custom);
 96	DEFINE(C_INTENAR, offsetof(struct CUSTOM, intenar));
 97	DEFINE(C_INTREQR, offsetof(struct CUSTOM, intreqr));
 98	DEFINE(C_INTENA, offsetof(struct CUSTOM, intena));
 99	DEFINE(C_INTREQ, offsetof(struct CUSTOM, intreq));
100	DEFINE(C_SERDATR, offsetof(struct CUSTOM, serdatr));
101	DEFINE(C_SERDAT, offsetof(struct CUSTOM, serdat));
102	DEFINE(C_SERPER, offsetof(struct CUSTOM, serper));
103	DEFINE(CIAABASE, &ciaa);
104	DEFINE(CIABBASE, &ciab);
105	DEFINE(C_PRA, offsetof(struct CIA, pra));
106	DEFINE(ZTWOBASE, zTwoBase);
107
108	return 0;
109}