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-rw-r--r--arch/um/sys-i386/user-offsets.c69
1 files changed, 69 insertions, 0 deletions
diff --git a/arch/um/sys-i386/user-offsets.c b/arch/um/sys-i386/user-offsets.c
new file mode 100644
index 000000000000..3ceaabceb3d7
--- /dev/null
+++ b/arch/um/sys-i386/user-offsets.c
@@ -0,0 +1,69 @@
1#include <stdio.h>
2#include <signal.h>
3#include <asm/ptrace.h>
4#include <asm/user.h>
5#include <linux/stddef.h>
6
7#define DEFINE(sym, val) \
8 asm volatile("\n->" #sym " %0 " #val : : "i" (val))
9
10#define OFFSET(sym, str, mem) \
11 DEFINE(sym, offsetof(struct str, mem));
12
13void foo(void)
14{
15 OFFSET(SC_IP, sigcontext, eip);
16 OFFSET(SC_SP, sigcontext, esp);
17 OFFSET(SC_FS, sigcontext, fs);
18 OFFSET(SC_GS, sigcontext, gs);
19 OFFSET(SC_DS, sigcontext, ds);
20 OFFSET(SC_ES, sigcontext, es);
21 OFFSET(SC_SS, sigcontext, ss);
22 OFFSET(SC_CS, sigcontext, cs);
23 OFFSET(SC_EFLAGS, sigcontext, eflags);
24 OFFSET(SC_EAX, sigcontext, eax);
25 OFFSET(SC_EBX, sigcontext, ebx);
26 OFFSET(SC_ECX, sigcontext, ecx);
27 OFFSET(SC_EDX, sigcontext, edx);
28 OFFSET(SC_EDI, sigcontext, edi);
29 OFFSET(SC_ESI, sigcontext, esi);
30 OFFSET(SC_EBP, sigcontext, ebp);
31 OFFSET(SC_TRAPNO, sigcontext, trapno);
32 OFFSET(SC_ERR, sigcontext, err);
33 OFFSET(SC_CR2, sigcontext, cr2);
34 OFFSET(SC_FPSTATE, sigcontext, fpstate);
35 OFFSET(SC_SIGMASK, sigcontext, oldmask);
36 OFFSET(SC_FP_CW, _fpstate, cw);
37 OFFSET(SC_FP_SW, _fpstate, sw);
38 OFFSET(SC_FP_TAG, _fpstate, tag);
39 OFFSET(SC_FP_IPOFF, _fpstate, ipoff);
40 OFFSET(SC_FP_CSSEL, _fpstate, cssel);
41 OFFSET(SC_FP_DATAOFF, _fpstate, dataoff);
42 OFFSET(SC_FP_DATASEL, _fpstate, datasel);
43 OFFSET(SC_FP_ST, _fpstate, _st);
44 OFFSET(SC_FXSR_ENV, _fpstate, _fxsr_env);
45
46 DEFINE(HOST_FRAME_SIZE, FRAME_SIZE);
47 DEFINE(HOST_FP_SIZE,
48 sizeof(struct user_i387_struct) / sizeof(unsigned long));
49 DEFINE(HOST_XFP_SIZE,
50 sizeof(struct user_fxsr_struct) / sizeof(unsigned long));
51
52 DEFINE(HOST_IP, EIP);
53 DEFINE(HOST_SP, UESP);
54 DEFINE(HOST_EFLAGS, EFL);
55 DEFINE(HOST_EAX, EAX);
56 DEFINE(HOST_EBX, EBX);
57 DEFINE(HOST_ECX, ECX);
58 DEFINE(HOST_EDX, EDX);
59 DEFINE(HOST_ESI, ESI);
60 DEFINE(HOST_EDI, EDI);
61 DEFINE(HOST_EBP, EBP);
62 DEFINE(HOST_CS, CS);
63 DEFINE(HOST_SS, SS);
64 DEFINE(HOST_DS, DS);
65 DEFINE(HOST_FS, FS);
66 DEFINE(HOST_ES, ES);
67 DEFINE(HOST_GS, GS);
68 DEFINE(__UM_FRAME_SIZE, sizeof(struct user_regs_struct));
69}