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

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _ASM_X86_SIGFRAME_H
 3#define _ASM_X86_SIGFRAME_H
 4
 5#include <uapi/asm/sigcontext.h>
 6#include <asm/siginfo.h>
 7#include <asm/ucontext.h>
 8#include <linux/compat.h>
 9
10#ifdef CONFIG_X86_32
11#define sigframe_ia32		sigframe
12#define rt_sigframe_ia32	rt_sigframe
13#define ucontext_ia32		ucontext
14#else /* !CONFIG_X86_32 */
15
16#ifdef CONFIG_IA32_EMULATION
17#include <asm/ia32.h>
18#endif /* CONFIG_IA32_EMULATION */
19
20#endif /* CONFIG_X86_32 */
21
22#if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION)
23struct sigframe_ia32 {
24	u32 pretcode;
25	int sig;
26	struct sigcontext_32 sc;
27	/*
28	 * fpstate is unused. fpstate is moved/allocated after
29	 * retcode[] below. This movement allows to have the FP state and the
30	 * future state extensions (xsave) stay together.
31	 * And at the same time retaining the unused fpstate, prevents changing
32	 * the offset of extramask[] in the sigframe and thus prevent any
33	 * legacy application accessing/modifying it.
34	 */
35	struct _fpstate_32 fpstate_unused;
36	unsigned int extramask[1];
 
 
 
 
37	char retcode[8];
38	/* fp state follows here */
39};
40
41struct rt_sigframe_ia32 {
42	u32 pretcode;
43	int sig;
44	u32 pinfo;
45	u32 puc;
46#ifdef CONFIG_IA32_EMULATION
47	compat_siginfo_t info;
48#else /* !CONFIG_IA32_EMULATION */
49	struct siginfo info;
50#endif /* CONFIG_IA32_EMULATION */
51	struct ucontext_ia32 uc;
52	char retcode[8];
53	/* fp state follows here */
54};
55#endif /* defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION) */
56
57#ifdef CONFIG_X86_64
58
59struct rt_sigframe {
60	char __user *pretcode;
61	struct ucontext uc;
62	struct siginfo info;
63	/* fp state follows here */
64};
65
66#ifdef CONFIG_X86_X32_ABI
67
68struct ucontext_x32 {
69	unsigned int	  uc_flags;
70	unsigned int 	  uc_link;
71	compat_stack_t	  uc_stack;
72	unsigned int	  uc__pad0;     /* needed for alignment */
73	struct sigcontext uc_mcontext;  /* the 64-bit sigcontext type */
74	compat_sigset_t	  uc_sigmask;	/* mask last for extensibility */
75};
76
77struct rt_sigframe_x32 {
78	u64 pretcode;
79	struct ucontext_x32 uc;
80	compat_siginfo_t info;
81	/* fp state follows here */
82};
83
84#endif /* CONFIG_X86_X32_ABI */
85
86#endif /* CONFIG_X86_64 */
87
88void __init init_sigframe_size(void);
89
90#endif /* _ASM_X86_SIGFRAME_H */