arch/um/sys-i386/user-offsets.c

   1 #include <stdio.h>
   2 #include <signal.h>
   3 #include <asm/ptrace.h>
   4 #include <asm/user.h>
   5 #include <linux/stddef.h>
   6
   7 #define DEFINE(sym, val) \
   8         asm volatile("\n->" #sym " %0 " #val : : "i" (val))
   9
  10 #define OFFSET(sym, str, mem) \
  11         DEFINE(sym, offsetof(struct str, mem));
  12
  13 void foo(void)
  14 {
  15         OFFSET(SC_IP, sigcontext, eip);
  16         OFFSET(SC_SP, sigcontext, esp);
  17         OFFSET(SC_FS, sigcontext, fs);
  18         OFFSET(SC_GS, sigcontext, gs);
  19         OFFSET(SC_DS, sigcontext, ds);
  20         OFFSET(SC_ES, sigcontext, es);
  21         OFFSET(SC_SS, sigcontext, ss);
  22         OFFSET(SC_CS, sigcontext, cs);
  23         OFFSET(SC_EFLAGS, sigcontext, eflags);
  24         OFFSET(SC_EAX, sigcontext, eax);
  25         OFFSET(SC_EBX, sigcontext, ebx);
  26         OFFSET(SC_ECX, sigcontext, ecx);
  27         OFFSET(SC_EDX, sigcontext, edx);
  28         OFFSET(SC_EDI, sigcontext, edi);
  29         OFFSET(SC_ESI, sigcontext, esi);
  30         OFFSET(SC_EBP, sigcontext, ebp);
  31         OFFSET(SC_TRAPNO, sigcontext, trapno);
  32         OFFSET(SC_ERR, sigcontext, err);
  33         OFFSET(SC_CR2, sigcontext, cr2);
  34         OFFSET(SC_FPSTATE, sigcontext, fpstate);
  35         OFFSET(SC_SIGMASK, sigcontext, oldmask);
  36         OFFSET(SC_FP_CW, _fpstate, cw);
  37         OFFSET(SC_FP_SW, _fpstate, sw);
  38         OFFSET(SC_FP_TAG, _fpstate, tag);
  39         OFFSET(SC_FP_IPOFF, _fpstate, ipoff);
  40         OFFSET(SC_FP_CSSEL, _fpstate, cssel);
  41         OFFSET(SC_FP_DATAOFF, _fpstate, dataoff);
  42         OFFSET(SC_FP_DATASEL, _fpstate, datasel);
  43         OFFSET(SC_FP_ST, _fpstate, _st);
  44         OFFSET(SC_FXSR_ENV, _fpstate, _fxsr_env);
  45
  46         DEFINE(HOST_FRAME_SIZE, FRAME_SIZE);
  47         DEFINE(HOST_FP_SIZE,
  48                 sizeof(struct user_i387_struct) / sizeof(unsigned long));
  49         DEFINE(HOST_XFP_SIZE,
  50                sizeof(struct user_fxsr_struct) / sizeof(unsigned long));
  51
  52         DEFINE(HOST_IP, EIP);
  53         DEFINE(HOST_SP, UESP);
  54         DEFINE(HOST_EFLAGS, EFL);
  55         DEFINE(HOST_EAX, EAX);
  56         DEFINE(HOST_EBX, EBX);
  57         DEFINE(HOST_ECX, ECX);
  58         DEFINE(HOST_EDX, EDX);
  59         DEFINE(HOST_ESI, ESI);
  60         DEFINE(HOST_EDI, EDI);
  61         DEFINE(HOST_EBP, EBP);
  62         DEFINE(HOST_CS, CS);
  63         DEFINE(HOST_SS, SS);
  64         DEFINE(HOST_DS, DS);
  65         DEFINE(HOST_FS, FS);
  66         DEFINE(HOST_ES, ES);
  67         DEFINE(HOST_GS, GS);
  68         DEFINE(__UM_FRAME_SIZE, sizeof(struct user_regs_struct));
  69 }