1 // SPDX-License-Identifier: GPL-2.0 2 #include <stdio.h> 3 #include <stddef.h> 4 #include <signal.h> 5 #include <sys/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 } 86