arch/um/sys-x86/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 <sys/user.h>
   7 #define __FRAME_OFFSETS
   8 #include <asm/ptrace.h>
   9 #include <asm/types.h>
  10
  11 #define DEFINE(sym, val) \
  12         asm volatile("\n->" #sym " %0 " #val : : "i" (val))
  13
  14 #define DEFINE_LONGS(sym, val) \
  15         asm volatile("\n->" #sym " %0 " #val : : "i" (val/sizeof(unsigned long)))
  16
  17 #define OFFSET(sym, str, mem) \
  18         DEFINE(sym, offsetof(struct str, mem));
  19
  20 void foo(void)
  21 {
  22         OFFSET(HOST_SC_TRAPNO, sigcontext, trapno);
  23         OFFSET(HOST_SC_ERR, sigcontext, err);
  24         OFFSET(HOST_SC_CR2, sigcontext, cr2);
  25
  26 #ifdef __i386__
  27         DEFINE_LONGS(HOST_FP_SIZE, sizeof(struct user_fpregs_struct));
  28         DEFINE_LONGS(HOST_FPX_SIZE, sizeof(struct user_fpxregs_struct));
  29
  30         DEFINE(HOST_IP, EIP);
  31         DEFINE(HOST_SP, UESP);
  32         DEFINE(HOST_EFLAGS, EFL);
  33         DEFINE(HOST_EAX, EAX);
  34         DEFINE(HOST_EBX, EBX);
  35         DEFINE(HOST_ECX, ECX);
  36         DEFINE(HOST_EDX, EDX);
  37         DEFINE(HOST_ESI, ESI);
  38         DEFINE(HOST_EDI, EDI);
  39         DEFINE(HOST_EBP, EBP);
  40         DEFINE(HOST_CS, CS);
  41         DEFINE(HOST_SS, SS);
  42         DEFINE(HOST_DS, DS);
  43         DEFINE(HOST_FS, FS);
  44         DEFINE(HOST_ES, ES);
  45         DEFINE(HOST_GS, GS);
  46 #else
  47         DEFINE(HOST_FP_SIZE, sizeof(struct _fpstate) / sizeof(unsigned long));
  48         DEFINE_LONGS(HOST_RBX, RBX);
  49         DEFINE_LONGS(HOST_RCX, RCX);
  50         DEFINE_LONGS(HOST_RDI, RDI);
  51         DEFINE_LONGS(HOST_RSI, RSI);
  52         DEFINE_LONGS(HOST_RDX, RDX);
  53         DEFINE_LONGS(HOST_RBP, RBP);
  54         DEFINE_LONGS(HOST_RAX, RAX);
  55         DEFINE_LONGS(HOST_R8, R8);
  56         DEFINE_LONGS(HOST_R9, R9);
  57         DEFINE_LONGS(HOST_R10, R10);
  58         DEFINE_LONGS(HOST_R11, R11);
  59         DEFINE_LONGS(HOST_R12, R12);
  60         DEFINE_LONGS(HOST_R13, R13);
  61         DEFINE_LONGS(HOST_R14, R14);
  62         DEFINE_LONGS(HOST_R15, R15);
  63         DEFINE_LONGS(HOST_ORIG_RAX, ORIG_RAX);
  64         DEFINE_LONGS(HOST_CS, CS);
  65         DEFINE_LONGS(HOST_SS, SS);
  66         DEFINE_LONGS(HOST_EFLAGS, EFLAGS);
  67 #if 0
  68         DEFINE_LONGS(HOST_FS, FS);
  69         DEFINE_LONGS(HOST_GS, GS);
  70         DEFINE_LONGS(HOST_DS, DS);
  71         DEFINE_LONGS(HOST_ES, ES);
  72 #endif
  73
  74         DEFINE_LONGS(HOST_IP, RIP);
  75         DEFINE_LONGS(HOST_SP, RSP);
  76 #endif
  77
  78         DEFINE(UM_FRAME_SIZE, sizeof(struct user_regs_struct));
  79         DEFINE(UM_POLLIN, POLLIN);
  80         DEFINE(UM_POLLPRI, POLLPRI);
  81         DEFINE(UM_POLLOUT, POLLOUT);
  82
  83         DEFINE(UM_PROT_READ, PROT_READ);
  84         DEFINE(UM_PROT_WRITE, PROT_WRITE);
  85         DEFINE(UM_PROT_EXEC, PROT_EXEC);
  86 }