|
111
|
1 /* { dg-do run { target i?86-*-* x86_64-*-* } } */
|
|
|
2 /* { dg-options "-mgeneral-regs-only" } */
|
|
|
3
|
|
|
4 #include <stddef.h>
|
|
|
5
|
|
|
6 extern void exit (int);
|
|
|
7
|
|
|
8 typedef unsigned int uword_t __attribute__ ((mode (__word__)));
|
|
|
9 typedef int aligned __attribute__((aligned(64)));
|
|
|
10
|
|
|
11 #define IP 0x12345671
|
|
|
12 #define CS 0x12345672
|
|
|
13 #define FLAGS 0x12345673
|
|
|
14 #define SP 0x12345674
|
|
|
15 #define SS 0x12345675
|
|
|
16
|
|
|
17 #define STRING(x) XSTRING(x)
|
|
|
18 #define XSTRING(x) #x
|
|
|
19 #define ASMNAME(cname) ASMNAME2 (__USER_LABEL_PREFIX__, cname)
|
|
|
20 #define ASMNAME2(prefix, cname) XSTRING (prefix) cname
|
|
|
21
|
|
|
22 struct interrupt_frame
|
|
|
23 {
|
|
|
24 uword_t ip;
|
|
|
25 uword_t cs;
|
|
|
26 uword_t flags;
|
|
|
27 uword_t sp;
|
|
|
28 uword_t ss;
|
|
|
29 };
|
|
|
30
|
|
|
31 int
|
|
|
32 check_int (int *i, int align)
|
|
|
33 {
|
|
|
34 *i = 20;
|
|
|
35 if ((((ptrdiff_t) i) & (align - 1)) != 0)
|
|
|
36 __builtin_abort ();
|
|
|
37 return *i;
|
|
|
38 }
|
|
|
39
|
|
|
40 __attribute__((interrupt, used))
|
|
|
41 void
|
|
|
42 fn (struct interrupt_frame *frame)
|
|
|
43 {
|
|
|
44 aligned i;
|
|
|
45 if (check_int (&i, __alignof__(i)) != i)
|
|
|
46 __builtin_abort ();
|
|
|
47
|
|
|
48 if (IP != frame->ip)
|
|
|
49 __builtin_abort ();
|
|
|
50 if (CS != frame->cs)
|
|
|
51 __builtin_abort ();
|
|
|
52 if (FLAGS != frame->flags)
|
|
|
53 __builtin_abort ();
|
|
|
54 if (SP != frame->sp)
|
|
|
55 __builtin_abort ();
|
|
|
56 if (SS != frame->ss)
|
|
|
57 __builtin_abort ();
|
|
|
58
|
|
|
59 exit (0);
|
|
|
60 }
|
|
|
61
|
|
|
62 int
|
|
|
63 main ()
|
|
|
64 {
|
|
|
65 asm ("push $" STRING (SS) "; \
|
|
|
66 push $" STRING (SP) "; \
|
|
|
67 push $" STRING (FLAGS) "; \
|
|
|
68 push $" STRING (CS) "; \
|
|
|
69 push $" STRING (IP) "; \
|
|
|
70 jmp " ASMNAME ("fn"));
|
|
|
71 return 0;
|
|
|
72 }
|
