![Linus Torvalds](/assets/img/avatar_default.png)
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!
102 lines
3.6 KiB
C
102 lines
3.6 KiB
C
/*
|
|
* This program is used to generate definitions needed by
|
|
* assembly language modules.
|
|
*
|
|
* We use the technique used in the OSF Mach kernel code:
|
|
* generate asm statements containing #defines,
|
|
* compile this file to assembler, and then extract the
|
|
* #defines from the assembly-language output.
|
|
*/
|
|
|
|
#include <linux/stddef.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/kernel_stat.h>
|
|
#include <linux/ptrace.h>
|
|
#include <linux/hardirq.h>
|
|
#include <asm/bootinfo.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/thread_info.h>
|
|
|
|
#define DEFINE(sym, val) \
|
|
asm volatile("\n->" #sym " %0 " #val : : "i" (val))
|
|
|
|
#define BLANK() asm volatile("\n->" : : )
|
|
|
|
int main(void)
|
|
{
|
|
/* offsets into the task struct */
|
|
DEFINE(TASK_STATE, offsetof(struct task_struct, state));
|
|
DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags));
|
|
DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace));
|
|
DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked));
|
|
DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
|
|
DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, thread_info));
|
|
DEFINE(TASK_MM, offsetof(struct task_struct, mm));
|
|
DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
|
|
|
|
/* offsets into the kernel_stat struct */
|
|
DEFINE(STAT_IRQ, offsetof(struct kernel_stat, irqs));
|
|
|
|
/* offsets into the irq_cpustat_t struct */
|
|
DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending));
|
|
|
|
/* offsets into the thread struct */
|
|
DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp));
|
|
DEFINE(THREAD_USP, offsetof(struct thread_struct, usp));
|
|
DEFINE(THREAD_SR, offsetof(struct thread_struct, sr));
|
|
DEFINE(THREAD_FS, offsetof(struct thread_struct, fs));
|
|
DEFINE(THREAD_CRP, offsetof(struct thread_struct, crp));
|
|
DEFINE(THREAD_ESP0, offsetof(struct thread_struct, esp0));
|
|
DEFINE(THREAD_FPREG, offsetof(struct thread_struct, fp));
|
|
DEFINE(THREAD_FPCNTL, offsetof(struct thread_struct, fpcntl));
|
|
DEFINE(THREAD_FPSTATE, offsetof(struct thread_struct, fpstate));
|
|
|
|
/* offsets into the pt_regs */
|
|
DEFINE(PT_D0, offsetof(struct pt_regs, d0));
|
|
DEFINE(PT_ORIG_D0, offsetof(struct pt_regs, orig_d0));
|
|
DEFINE(PT_D1, offsetof(struct pt_regs, d1));
|
|
DEFINE(PT_D2, offsetof(struct pt_regs, d2));
|
|
DEFINE(PT_D3, offsetof(struct pt_regs, d3));
|
|
DEFINE(PT_D4, offsetof(struct pt_regs, d4));
|
|
DEFINE(PT_D5, offsetof(struct pt_regs, d5));
|
|
DEFINE(PT_A0, offsetof(struct pt_regs, a0));
|
|
DEFINE(PT_A1, offsetof(struct pt_regs, a1));
|
|
DEFINE(PT_A2, offsetof(struct pt_regs, a2));
|
|
DEFINE(PT_PC, offsetof(struct pt_regs, pc));
|
|
DEFINE(PT_SR, offsetof(struct pt_regs, sr));
|
|
|
|
#ifdef CONFIG_COLDFIRE
|
|
/* bitfields are a bit difficult */
|
|
DEFINE(PT_FORMATVEC, offsetof(struct pt_regs, sr) - 2);
|
|
#else
|
|
/* bitfields are a bit difficult */
|
|
DEFINE(PT_VECTOR, offsetof(struct pt_regs, pc) + 4);
|
|
/* offsets into the irq_handler struct */
|
|
DEFINE(IRQ_HANDLER, offsetof(struct irq_node, handler));
|
|
DEFINE(IRQ_DEVID, offsetof(struct irq_node, dev_id));
|
|
DEFINE(IRQ_NEXT, offsetof(struct irq_node, next));
|
|
#endif
|
|
|
|
/* offsets into the kernel_stat struct */
|
|
DEFINE(STAT_IRQ, offsetof(struct kernel_stat, irqs));
|
|
|
|
/* signal defines */
|
|
DEFINE(SIGSEGV, SIGSEGV);
|
|
DEFINE(SEGV_MAPERR, SEGV_MAPERR);
|
|
DEFINE(SIGTRAP, SIGTRAP);
|
|
DEFINE(TRAP_TRACE, TRAP_TRACE);
|
|
|
|
DEFINE(PT_PTRACED, PT_PTRACED);
|
|
DEFINE(PT_DTRACE, PT_DTRACE);
|
|
|
|
DEFINE(THREAD_SIZE, THREAD_SIZE);
|
|
|
|
/* Offsets in thread_info structure */
|
|
DEFINE(TI_TASK, offsetof(struct thread_info, task));
|
|
DEFINE(TI_EXECDOMAIN, offsetof(struct thread_info, exec_domain));
|
|
DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
|
|
DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
|
|
|
|
return 0;
|
|
}
|