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/user.h>
   6 #include <sys/mman.h>
   7 #include <asm/ptrace.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_TRAPNO, sigcontext, trapno);
  21         OFFSET(HOST_SC_ERR, sigcontext, err);
  22         OFFSET(HOST_SC_CR2, sigcontext, cr2);
  23
  24         DEFINE_LONGS(HOST_FP_SIZE, sizeof(struct user_fpregs_struct));
  25         DEFINE_LONGS(HOST_XFP_SIZE, sizeof(struct user_fpxregs_struct));
  26
  27         DEFINE(HOST_IP, EIP);
  28         DEFINE(HOST_SP, UESP);
  29         DEFINE(HOST_EFLAGS, EFL);
  30         DEFINE(HOST_EAX, EAX);
  31         DEFINE(HOST_EBX, EBX);
  32         DEFINE(HOST_ECX, ECX);
  33         DEFINE(HOST_EDX, EDX);
  34         DEFINE(HOST_ESI, ESI);
  35         DEFINE(HOST_EDI, EDI);
  36         DEFINE(HOST_EBP, EBP);
  37         DEFINE(HOST_CS, CS);
  38         DEFINE(HOST_SS, SS);
  39         DEFINE(HOST_DS, DS);
  40         DEFINE(HOST_FS, FS);
  41         DEFINE(HOST_ES, ES);
  42         DEFINE(HOST_GS, GS);
  43         DEFINE(UM_FRAME_SIZE, sizeof(struct user_regs_struct));
  44
  45         /* XXX Duplicated between i386 and x86_64 */
  46         DEFINE(UM_POLLIN, POLLIN);
  47         DEFINE(UM_POLLPRI, POLLPRI);
  48         DEFINE(UM_POLLOUT, POLLOUT);
  49
  50         DEFINE(UM_PROT_READ, PROT_READ);
  51         DEFINE(UM_PROT_WRITE, PROT_WRITE);
  52         DEFINE(UM_PROT_EXEC, PROT_EXEC);
  53 }