blob: 34edd1650baed6832decb9dc97a9cbe32be5a3d0 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
#ifndef _ASM_X86_SIGFRAME_H
#define _ASM_X86_SIGFRAME_H
#include <uapi/asm/sigcontext.h>
#include <asm/siginfo.h>
#include <asm/ucontext.h>
#include <linux/compat.h>
#ifdef CONFIG_X86_32
#define sigframe_ia32 sigframe
#define rt_sigframe_ia32 rt_sigframe
#define ucontext_ia32 ucontext
#else /* !CONFIG_X86_32 */
#ifdef CONFIG_IA32_EMULATION
#include <asm/ia32.h>
#endif /* CONFIG_IA32_EMULATION */
#endif /* CONFIG_X86_32 */
#if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION)
struct sigframe_ia32 {
u32 pretcode;
int sig;
struct sigcontext_32 sc;
/*
* fpstate is unused. fpstate is moved/allocated after
* retcode[] below. This movement allows to have the FP state and the
* future state extensions (xsave) stay together.
* And at the same time retaining the unused fpstate, prevents changing
* the offset of extramask[] in the sigframe and thus prevent any
* legacy application accessing/modifying it.
*/
struct _fpstate_32 fpstate_unused;
#ifdef CONFIG_IA32_EMULATION
unsigned int extramask[_COMPAT_NSIG_WORDS-1];
#else /* !CONFIG_IA32_EMULATION */
unsigned long extramask[_NSIG_WORDS-1];
#endif /* CONFIG_IA32_EMULATION */
char retcode[8];
/* fp state follows here */
};
struct rt_sigframe_ia32 {
u32 pretcode;
int sig;
u32 pinfo;
u32 puc;
#ifdef CONFIG_IA32_EMULATION
compat_siginfo_t info;
#else /* !CONFIG_IA32_EMULATION */
struct siginfo info;
#endif /* CONFIG_IA32_EMULATION */
struct ucontext_ia32 uc;
char retcode[8];
/* fp state follows here */
};
#endif /* defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION) */
#ifdef CONFIG_X86_64
struct rt_sigframe {
char __user *pretcode;
struct ucontext uc;
struct siginfo info;
/* fp state follows here */
};
#ifdef CONFIG_X86_X32_ABI
struct ucontext_x32 {
unsigned int uc_flags;
unsigned int uc_link;
compat_stack_t uc_stack;
unsigned int uc__pad0; /* needed for alignment */
struct sigcontext uc_mcontext; /* the 64-bit sigcontext type */
compat_sigset_t uc_sigmask; /* mask last for extensibility */
};
struct rt_sigframe_x32 {
u64 pretcode;
struct ucontext_x32 uc;
compat_siginfo_t info;
/* fp state follows here */
};
#endif /* CONFIG_X86_X32_ABI */
#endif /* CONFIG_X86_64 */
#endif /* _ASM_X86_SIGFRAME_H */
|
