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Sourcecode: linux-2.6 version File versions

asm-offsets.c

/*
 * Generate definitions needed by assembly language modules.
 * This code generates raw asm output which is post-processed to extract
 * and format the required data.
 */

#include <linux/types.h>
#include <linux/stddef.h>
#include <linux/sched.h>
#include <linux/ptrace.h>
#include <asm/io.h>

#define DEFINE(sym, val) \
        asm volatile("\n->" #sym " %0 " #val : : "i" (val))

#define BLANK() asm volatile("\n->" : : )

void foo(void)
{
      DEFINE(TI_TASK, offsetof(struct thread_info, task));
      DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
      DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
      BLANK();

        DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked));
        DEFINE(TASK_UID, offsetof(struct task_struct, uid));
        DEFINE(TASK_EUID, offsetof(struct task_struct, euid));
        DEFINE(TASK_GID, offsetof(struct task_struct, gid));
        DEFINE(TASK_EGID, offsetof(struct task_struct, egid));
        DEFINE(TASK_REAL_PARENT, offsetof(struct task_struct, real_parent));
        DEFINE(TASK_GROUP_LEADER, offsetof(struct task_struct, group_leader));
        DEFINE(TASK_TGID, offsetof(struct task_struct, tgid));
        BLANK();

      DEFINE(SIZEOF_PT_REGS, sizeof(struct pt_regs));
      DEFINE(PT_PTRACED, PT_PTRACED);
      DEFINE(CLONE_VM, CLONE_VM);
      DEFINE(CLONE_UNTRACED, CLONE_UNTRACED);
      DEFINE(SIGCHLD, SIGCHLD);
      BLANK();

      DEFINE(HAE_CACHE, offsetof(struct alpha_machine_vector, hae_cache));
      DEFINE(HAE_REG, offsetof(struct alpha_machine_vector, hae_register));
}

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