xref: /openbmc/linux/arch/x86/um/user-offsets.c (revision 110e6f26)
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 #ifdef __i386__
12 #define __SYSCALL_I386(nr, sym, qual) [nr] = 1,
13 static char syscalls[] = {
14 #include <asm/syscalls_32.h>
15 };
16 #else
17 #define __SYSCALL_64(nr, sym, qual) [nr] = 1,
18 static char syscalls[] = {
19 #include <asm/syscalls_64.h>
20 };
21 #endif
22 
23 #define DEFINE(sym, val) \
24 	asm volatile("\n->" #sym " %0 " #val : : "i" (val))
25 
26 #define DEFINE_LONGS(sym, val) \
27 	asm volatile("\n->" #sym " %0 " #val : : "i" (val/sizeof(unsigned long)))
28 
29 void foo(void)
30 {
31 #ifdef __i386__
32 	DEFINE_LONGS(HOST_FP_SIZE, sizeof(struct user_fpregs_struct));
33 	DEFINE_LONGS(HOST_FPX_SIZE, sizeof(struct user_fpxregs_struct));
34 
35 	DEFINE(HOST_IP, EIP);
36 	DEFINE(HOST_SP, UESP);
37 	DEFINE(HOST_EFLAGS, EFL);
38 	DEFINE(HOST_AX, EAX);
39 	DEFINE(HOST_BX, EBX);
40 	DEFINE(HOST_CX, ECX);
41 	DEFINE(HOST_DX, EDX);
42 	DEFINE(HOST_SI, ESI);
43 	DEFINE(HOST_DI, EDI);
44 	DEFINE(HOST_BP, EBP);
45 	DEFINE(HOST_CS, CS);
46 	DEFINE(HOST_SS, SS);
47 	DEFINE(HOST_DS, DS);
48 	DEFINE(HOST_FS, FS);
49 	DEFINE(HOST_ES, ES);
50 	DEFINE(HOST_GS, GS);
51 	DEFINE(HOST_ORIG_AX, ORIG_EAX);
52 #else
53 	DEFINE(HOST_FP_SIZE, sizeof(struct _fpstate) / sizeof(unsigned long));
54 	DEFINE_LONGS(HOST_BX, RBX);
55 	DEFINE_LONGS(HOST_CX, RCX);
56 	DEFINE_LONGS(HOST_DI, RDI);
57 	DEFINE_LONGS(HOST_SI, RSI);
58 	DEFINE_LONGS(HOST_DX, RDX);
59 	DEFINE_LONGS(HOST_BP, RBP);
60 	DEFINE_LONGS(HOST_AX, RAX);
61 	DEFINE_LONGS(HOST_R8, R8);
62 	DEFINE_LONGS(HOST_R9, R9);
63 	DEFINE_LONGS(HOST_R10, R10);
64 	DEFINE_LONGS(HOST_R11, R11);
65 	DEFINE_LONGS(HOST_R12, R12);
66 	DEFINE_LONGS(HOST_R13, R13);
67 	DEFINE_LONGS(HOST_R14, R14);
68 	DEFINE_LONGS(HOST_R15, R15);
69 	DEFINE_LONGS(HOST_ORIG_AX, ORIG_RAX);
70 	DEFINE_LONGS(HOST_CS, CS);
71 	DEFINE_LONGS(HOST_SS, SS);
72 	DEFINE_LONGS(HOST_EFLAGS, EFLAGS);
73 #if 0
74 	DEFINE_LONGS(HOST_FS, FS);
75 	DEFINE_LONGS(HOST_GS, GS);
76 	DEFINE_LONGS(HOST_DS, DS);
77 	DEFINE_LONGS(HOST_ES, ES);
78 #endif
79 
80 	DEFINE_LONGS(HOST_IP, RIP);
81 	DEFINE_LONGS(HOST_SP, RSP);
82 #endif
83 
84 	DEFINE(UM_FRAME_SIZE, sizeof(struct user_regs_struct));
85 	DEFINE(UM_POLLIN, POLLIN);
86 	DEFINE(UM_POLLPRI, POLLPRI);
87 	DEFINE(UM_POLLOUT, POLLOUT);
88 
89 	DEFINE(UM_PROT_READ, PROT_READ);
90 	DEFINE(UM_PROT_WRITE, PROT_WRITE);
91 	DEFINE(UM_PROT_EXEC, PROT_EXEC);
92 
93 	DEFINE(__NR_syscall_max, sizeof(syscalls) - 1);
94 	DEFINE(NR_syscalls, sizeof(syscalls));
95 }
96