arch/alpha/kernel/asm-offsets.c

   1 /*
   2  * Generate definitions needed by assembly language modules.
   3  * This code generates raw asm output which is post-processed to extract
   4  * and format the required data.
   5  */
   6
   7 #include <linux/types.h>
   8 #include <linux/stddef.h>
   9 #include <linux/sched.h>
  10 #include <linux/ptrace.h>
  11 #include <asm/io.h>
  12
  13 #define DEFINE(sym, val) \
  14         asm volatile("\n->" #sym " %0 " #val : : "i" (val))
  15
  16 #define BLANK() asm volatile("\n->" : : )
  17
  18 void foo(void)
  19 {
  20         DEFINE(TI_TASK, offsetof(struct thread_info, task));
  21         DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
  22         DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
  23         BLANK();
  24
  25         DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked));
  26         DEFINE(TASK_UID, offsetof(struct task_struct, uid));
  27         DEFINE(TASK_EUID, offsetof(struct task_struct, euid));
  28         DEFINE(TASK_GID, offsetof(struct task_struct, gid));
  29         DEFINE(TASK_EGID, offsetof(struct task_struct, egid));
  30         DEFINE(TASK_REAL_PARENT, offsetof(struct task_struct, real_parent));
  31         DEFINE(TASK_GROUP_LEADER, offsetof(struct task_struct, group_leader));
  32         DEFINE(TASK_TGID, offsetof(struct task_struct, tgid));
  33         BLANK();
  34
  35         DEFINE(SIZEOF_PT_REGS, sizeof(struct pt_regs));
  36         DEFINE(PT_PTRACED, PT_PTRACED);
  37         DEFINE(CLONE_VM, CLONE_VM);
  38         DEFINE(CLONE_UNTRACED, CLONE_UNTRACED);
  39         DEFINE(SIGCHLD, SIGCHLD);
  40         BLANK();
  41
  42         DEFINE(HAE_CACHE, offsetof(struct alpha_machine_vector, hae_cache));
  43         DEFINE(HAE_REG, offsetof(struct alpha_machine_vector, hae_register));
  44 }