72 lines
2.5 KiB
C
72 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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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 <linux/kbuild.h>
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#include <asm/irq.h>
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#include <asm/ptrace.h>
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int main(void)
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{
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/* offsets into the task struct */
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OFFSET(TASK_STATE, task_struct, state);
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OFFSET(TASK_FLAGS, task_struct, flags);
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OFFSET(TASK_PTRACE, task_struct, ptrace);
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OFFSET(TASK_BLOCKED, task_struct, blocked);
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OFFSET(TASK_THREAD, task_struct, thread);
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OFFSET(TASK_THREAD_INFO, task_struct, stack);
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OFFSET(TASK_MM, task_struct, mm);
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OFFSET(TASK_ACTIVE_MM, 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,
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__softirq_pending));
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/* offsets into the thread struct */
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OFFSET(THREAD_KSP, thread_struct, ksp);
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OFFSET(THREAD_USP, thread_struct, usp);
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OFFSET(THREAD_CCR, 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(LSP, offsetof(struct pt_regs, sp) - 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(CONFIG_CPU_H8S)
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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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/* offsets in thread_info structure */
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OFFSET(TI_TASK, thread_info, task);
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OFFSET(TI_FLAGS, thread_info, flags);
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OFFSET(TI_CPU, thread_info, cpu);
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OFFSET(TI_PRE, thread_info, preempt_count);
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#ifdef CONFIG_PREEMPTION
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DEFINE(TI_PRE_COUNT, offsetof(struct thread_info, preempt_count));
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#endif
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return 0;
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}
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