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

   1 #include <stdio.h>
   2 #include <stddef.h>
   3 #include <signal.h>
   4 #include <sys/poll.h>
   5 #include <sys/mman.h>
   6 #include <asm/ptrace.h>
   7 #include <asm/user.h>
   8
   9 #define DEFINE(sym, val) \
  10         asm volatile("\n->" #sym " %0 " #val : : "i" (val))
  11
  12 #define DEFINE_LONGS(sym, val) \
  13         asm volatile("\n->" #sym " %0 " #val : : "i" (val/sizeof(unsigned long)))
  14
  15 #define OFFSET(sym, str, mem) \
  16         DEFINE(sym, offsetof(struct str, mem));
  17
  18 void foo(void)
  19 {
  20         OFFSET(HOST_SC_IP, sigcontext, eip);
  21         OFFSET(HOST_SC_SP, sigcontext, esp);
  22         OFFSET(HOST_SC_FS, sigcontext, fs);
  23         OFFSET(HOST_SC_GS, sigcontext, gs);
  24         OFFSET(HOST_SC_DS, sigcontext, ds);
  25         OFFSET(HOST_SC_ES, sigcontext, es);
  26         OFFSET(HOST_SC_SS, sigcontext, ss);
  27         OFFSET(HOST_SC_CS, sigcontext, cs);
  28         OFFSET(HOST_SC_EFLAGS, sigcontext, eflags);
  29         OFFSET(HOST_SC_EAX, sigcontext, eax);
  30         OFFSET(HOST_SC_EBX, sigcontext, ebx);
  31         OFFSET(HOST_SC_ECX, sigcontext, ecx);
  32         OFFSET(HOST_SC_EDX, sigcontext, edx);
  33         OFFSET(HOST_SC_EDI, sigcontext, edi);
  34         OFFSET(HOST_SC_ESI, sigcontext, esi);
  35         OFFSET(HOST_SC_EBP, sigcontext, ebp);
  36         OFFSET(HOST_SC_TRAPNO, sigcontext, trapno);
  37         OFFSET(HOST_SC_ERR, sigcontext, err);
  38         OFFSET(HOST_SC_CR2, sigcontext, cr2);
  39         OFFSET(HOST_SC_FPSTATE, sigcontext, fpstate);
  40         OFFSET(HOST_SC_SIGMASK, sigcontext, oldmask);
  41         OFFSET(HOST_SC_FP_CW, _fpstate, cw);
  42         OFFSET(HOST_SC_FP_SW, _fpstate, sw);
  43         OFFSET(HOST_SC_FP_TAG, _fpstate, tag);
  44         OFFSET(HOST_SC_FP_IPOFF, _fpstate, ipoff);
  45         OFFSET(HOST_SC_FP_CSSEL, _fpstate, cssel);
  46         OFFSET(HOST_SC_FP_DATAOFF, _fpstate, dataoff);
  47         OFFSET(HOST_SC_FP_DATASEL, _fpstate, datasel);
  48         OFFSET(HOST_SC_FP_ST, _fpstate, _st);
  49         OFFSET(HOST_SC_FXSR_ENV, _fpstate, _fxsr_env);
  50
  51         DEFINE_LONGS(HOST_FP_SIZE, sizeof(struct user_i387_struct));
  52         DEFINE_LONGS(HOST_XFP_SIZE, sizeof(struct user_fxsr_struct));
  53
  54         DEFINE(HOST_IP, EIP);
  55         DEFINE(HOST_SP, UESP);
  56         DEFINE(HOST_EFLAGS, EFL);
  57         DEFINE(HOST_EAX, EAX);
  58         DEFINE(HOST_EBX, EBX);
  59         DEFINE(HOST_ECX, ECX);
  60         DEFINE(HOST_EDX, EDX);
  61         DEFINE(HOST_ESI, ESI);
  62         DEFINE(HOST_EDI, EDI);
  63         DEFINE(HOST_EBP, EBP);
  64         DEFINE(HOST_CS, CS);
  65         DEFINE(HOST_SS, SS);
  66         DEFINE(HOST_DS, DS);
  67         DEFINE(HOST_FS, FS);
  68         DEFINE(HOST_ES, ES);
  69         DEFINE(HOST_GS, GS);
  70         DEFINE(UM_FRAME_SIZE, sizeof(struct user_regs_struct));
  71
  72         /* XXX Duplicated between i386 and x86_64 */
  73         DEFINE(UM_POLLIN, POLLIN);
  74         DEFINE(UM_POLLPRI, POLLPRI);
  75         DEFINE(UM_POLLOUT, POLLOUT);
  76
  77         DEFINE(UM_PROT_READ, PROT_READ);
  78         DEFINE(UM_PROT_WRITE, PROT_WRITE);
  79         DEFINE(UM_PROT_EXEC, PROT_EXEC);
  80 }