arch/x86/um/user-offsets.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <stdio.h>
   3 #include <stddef.h>
   4 #include <signal.h>
   5 #include <poll.h>
   6 #include <sys/mman.h>
   7 #include <sys/user.h>
   8 #define __FRAME_OFFSETS
   9 #include <linux/ptrace.h>
  10 #include <asm/types.h>
  11
  12 #define DEFINE(sym, val) \
  13         asm volatile("\n->" #sym " %0 " #val : : "i" (val))
  14
  15 #define DEFINE_LONGS(sym, val) \
  16         asm volatile("\n->" #sym " %0 " #val : : "i" (val/sizeof(unsigned long)))
  17
  18 void foo(void)
  19 {
  20 #ifdef __i386__
  21         DEFINE_LONGS(HOST_FP_SIZE, sizeof(struct user_fpregs_struct));
  22         DEFINE_LONGS(HOST_FPX_SIZE, sizeof(struct user_fpxregs_struct));
  23
  24         DEFINE(HOST_IP, EIP);
  25         DEFINE(HOST_SP, UESP);
  26         DEFINE(HOST_EFLAGS, EFL);
  27         DEFINE(HOST_AX, EAX);
  28         DEFINE(HOST_BX, EBX);
  29         DEFINE(HOST_CX, ECX);
  30         DEFINE(HOST_DX, EDX);
  31         DEFINE(HOST_SI, ESI);
  32         DEFINE(HOST_DI, EDI);
  33         DEFINE(HOST_BP, EBP);
  34         DEFINE(HOST_CS, CS);
  35         DEFINE(HOST_SS, SS);
  36         DEFINE(HOST_DS, DS);
  37         DEFINE(HOST_FS, FS);
  38         DEFINE(HOST_ES, ES);
  39         DEFINE(HOST_GS, GS);
  40         DEFINE(HOST_ORIG_AX, ORIG_EAX);
  41 #else
  42 #ifdef FP_XSTATE_MAGIC1
  43         DEFINE_LONGS(HOST_FP_SIZE, 2696);
  44 #else
  45         DEFINE(HOST_FP_SIZE, sizeof(struct _fpstate) / sizeof(unsigned long));
  46 #endif
  47         DEFINE_LONGS(HOST_BX, RBX);
  48         DEFINE_LONGS(HOST_CX, RCX);
  49         DEFINE_LONGS(HOST_DI, RDI);
  50         DEFINE_LONGS(HOST_SI, RSI);
  51         DEFINE_LONGS(HOST_DX, RDX);
  52         DEFINE_LONGS(HOST_BP, RBP);
  53         DEFINE_LONGS(HOST_AX, RAX);
  54         DEFINE_LONGS(HOST_R8, R8);
  55         DEFINE_LONGS(HOST_R9, R9);
  56         DEFINE_LONGS(HOST_R10, R10);
  57         DEFINE_LONGS(HOST_R11, R11);
  58         DEFINE_LONGS(HOST_R12, R12);
  59         DEFINE_LONGS(HOST_R13, R13);
  60         DEFINE_LONGS(HOST_R14, R14);
  61         DEFINE_LONGS(HOST_R15, R15);
  62         DEFINE_LONGS(HOST_ORIG_AX, ORIG_RAX);
  63         DEFINE_LONGS(HOST_CS, CS);
  64         DEFINE_LONGS(HOST_SS, SS);
  65         DEFINE_LONGS(HOST_EFLAGS, EFLAGS);
  66 #if 0
  67         DEFINE_LONGS(HOST_FS, FS);
  68         DEFINE_LONGS(HOST_GS, GS);
  69         DEFINE_LONGS(HOST_DS, DS);
  70         DEFINE_LONGS(HOST_ES, ES);
  71 #endif
  72
  73         DEFINE_LONGS(HOST_IP, RIP);
  74         DEFINE_LONGS(HOST_SP, RSP);
  75 #endif
  76
  77         DEFINE(UM_FRAME_SIZE, sizeof(struct user_regs_struct));
  78         DEFINE(UM_POLLIN, POLLIN);
  79         DEFINE(UM_POLLPRI, POLLPRI);
  80         DEFINE(UM_POLLOUT, POLLOUT);
  81
  82         DEFINE(UM_PROT_READ, PROT_READ);
  83         DEFINE(UM_PROT_WRITE, PROT_WRITE);
  84         DEFINE(UM_PROT_EXEC, PROT_EXEC);
  85 }