1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
101 lines
3.6 KiB
C
101 lines
3.6 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/thread_info.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 kernel_stat struct */
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DEFINE(STAT_IRQ, offsetof(struct kernel_stat, irqs));
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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_SR, offsetof(struct thread_struct, sr));
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DEFINE(THREAD_FS, offsetof(struct thread_struct, fs));
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DEFINE(THREAD_CRP, offsetof(struct thread_struct, crp));
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DEFINE(THREAD_ESP0, offsetof(struct thread_struct, esp0));
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DEFINE(THREAD_FPREG, offsetof(struct thread_struct, fp));
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DEFINE(THREAD_FPCNTL, offsetof(struct thread_struct, fpcntl));
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DEFINE(THREAD_FPSTATE, offsetof(struct thread_struct, fpstate));
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/* offsets into the pt_regs */
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DEFINE(PT_D0, offsetof(struct pt_regs, d0));
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DEFINE(PT_ORIG_D0, offsetof(struct pt_regs, orig_d0));
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DEFINE(PT_D1, offsetof(struct pt_regs, d1));
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DEFINE(PT_D2, offsetof(struct pt_regs, d2));
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DEFINE(PT_D3, offsetof(struct pt_regs, d3));
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DEFINE(PT_D4, offsetof(struct pt_regs, d4));
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DEFINE(PT_D5, offsetof(struct pt_regs, d5));
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DEFINE(PT_A0, offsetof(struct pt_regs, a0));
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DEFINE(PT_A1, offsetof(struct pt_regs, a1));
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DEFINE(PT_A2, offsetof(struct pt_regs, a2));
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DEFINE(PT_PC, offsetof(struct pt_regs, pc));
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DEFINE(PT_SR, offsetof(struct pt_regs, sr));
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#ifdef CONFIG_COLDFIRE
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/* bitfields are a bit difficult */
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DEFINE(PT_FORMATVEC, offsetof(struct pt_regs, sr) - 2);
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#else
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/* bitfields are a bit difficult */
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DEFINE(PT_VECTOR, offsetof(struct pt_regs, pc) + 4);
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/* offsets into the irq_handler struct */
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DEFINE(IRQ_HANDLER, offsetof(struct irq_node, handler));
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DEFINE(IRQ_DEVID, offsetof(struct irq_node, dev_id));
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DEFINE(IRQ_NEXT, offsetof(struct irq_node, next));
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#endif
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/* offsets into the kernel_stat struct */
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DEFINE(STAT_IRQ, offsetof(struct kernel_stat, irqs));
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/* signal defines */
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DEFINE(SIGSEGV, SIGSEGV);
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DEFINE(SEGV_MAPERR, SEGV_MAPERR);
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DEFINE(SIGTRAP, SIGTRAP);
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DEFINE(TRAP_TRACE, TRAP_TRACE);
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DEFINE(PT_PTRACED, PT_PTRACED);
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DEFINE(PT_DTRACE, PT_DTRACE);
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DEFINE(THREAD_SIZE, THREAD_SIZE);
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/* Offsets in thread_info structure */
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DEFINE(TI_TASK, offsetof(struct thread_info, task));
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DEFINE(TI_EXECDOMAIN, offsetof(struct thread_info, exec_domain));
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DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
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DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
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return 0;
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}
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