mirror of https://gitee.com/openkylin/linux.git
66 lines
2.4 KiB
C
66 lines
2.4 KiB
C
/*
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* This program is used to generate definitions needed by
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* assembly language modules.
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*
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* We use the technique used in the OSF Mach kernel code:
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* generate asm statements containing #defines,
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* compile this file to assembler, and then extract the
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* #defines from the assembly-language output.
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*/
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#include <linux/stddef.h>
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#include <linux/sched.h>
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#include <linux/kernel_stat.h>
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#include <linux/ptrace.h>
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#include <linux/hardirq.h>
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#include <asm/bootinfo.h>
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#include <asm/irq.h>
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#include <asm/ptrace.h>
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#define DEFINE(sym, val) \
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asm volatile("\n->" #sym " %0 " #val : : "i" (val))
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#define BLANK() asm volatile("\n->" : : )
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int main(void)
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{
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/* offsets into the task struct */
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DEFINE(TASK_STATE, offsetof(struct task_struct, state));
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DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags));
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DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace));
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DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked));
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DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
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DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, thread_info));
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DEFINE(TASK_MM, offsetof(struct task_struct, mm));
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DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
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/* offsets into the irq_cpustat_t struct */
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DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending));
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/* offsets into the thread struct */
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DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp));
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DEFINE(THREAD_USP, offsetof(struct thread_struct, usp));
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DEFINE(THREAD_CCR, offsetof(struct thread_struct, ccr));
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/* offsets into the pt_regs struct */
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DEFINE(LER0, offsetof(struct pt_regs, er0) - sizeof(long));
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DEFINE(LER1, offsetof(struct pt_regs, er1) - sizeof(long));
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DEFINE(LER2, offsetof(struct pt_regs, er2) - sizeof(long));
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DEFINE(LER3, offsetof(struct pt_regs, er3) - sizeof(long));
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DEFINE(LER4, offsetof(struct pt_regs, er4) - sizeof(long));
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DEFINE(LER5, offsetof(struct pt_regs, er5) - sizeof(long));
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DEFINE(LER6, offsetof(struct pt_regs, er6) - sizeof(long));
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DEFINE(LORIG, offsetof(struct pt_regs, orig_er0) - sizeof(long));
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DEFINE(LCCR, offsetof(struct pt_regs, ccr) - sizeof(long));
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DEFINE(LVEC, offsetof(struct pt_regs, vector) - sizeof(long));
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#if defined(__H8300S__)
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DEFINE(LEXR, offsetof(struct pt_regs, exr) - sizeof(long));
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#endif
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DEFINE(LRET, offsetof(struct pt_regs, pc) - sizeof(long));
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DEFINE(PT_PTRACED, PT_PTRACED);
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DEFINE(PT_DTRACE, PT_DTRACE);
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return 0;
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}
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