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/*
* 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/irq.h>
#include <asm/errno.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));
DEFINE (TASK_PID, offsetof (struct task_struct, pid));
/* 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 (SIGCHLD, SIGCHLD);
DEFINE (SIGILL, SIGILL);
DEFINE (TRAP_TRACE, TRAP_TRACE);
/* ptrace flag bits */
DEFINE (PT_PTRACED, PT_PTRACED);
DEFINE (PT_DTRACE, PT_DTRACE);
/* error values */
DEFINE (ENOSYS, ENOSYS);
/* clone flag bits */
DEFINE (CLONE_VFORK, CLONE_VFORK);
DEFINE (CLONE_VM, CLONE_VM);
return 0;
}
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