1 #ifndef __SPARC_SIGCONTEXT_H
2 #define __SPARC_SIGCONTEXT_H
3 
4 #ifdef __KERNEL__
5 #include <asm/ptrace.h>
6 
7 #ifndef __ASSEMBLY__
8 
9 #define __SUNOS_MAXWIN   31
10 
11 /* This is what SunOS does, so shall I unless we use new 32bit signals or rt signals. */
12 struct sigcontext32 {
13 	int sigc_onstack;      /* state to restore */
14 	int sigc_mask;         /* sigmask to restore */
15 	int sigc_sp;           /* stack pointer */
16 	int sigc_pc;           /* program counter */
17 	int sigc_npc;          /* next program counter */
18 	int sigc_psr;          /* for condition codes etc */
19 	int sigc_g1;           /* User uses these two registers */
20 	int sigc_o0;           /* within the trampoline code. */
21 
22 	/* Now comes information regarding the users window set
23 	 * at the time of the signal.
24 	 */
25 	int sigc_oswins;       /* outstanding windows */
26 
27 	/* stack ptrs for each regwin buf */
28 	unsigned sigc_spbuf[__SUNOS_MAXWIN];
29 
30 	/* Windows to restore after signal */
31 	struct reg_window32 sigc_wbuf[__SUNOS_MAXWIN];
32 };
33 
34 
35 /* This is what we use for 32bit new non-rt signals. */
36 
37 typedef struct {
38 	struct {
39 		unsigned int psr;
40 		unsigned int pc;
41 		unsigned int npc;
42 		unsigned int y;
43 		unsigned int u_regs[16]; /* globals and ins */
44 	}			si_regs;
45 	int			si_mask;
46 } __siginfo32_t;
47 
48 #define __SIGC_MAXWIN	7
49 
50 typedef struct {
51 	unsigned long locals[8];
52 	unsigned long ins[8];
53 } __siginfo_reg_window;
54 
55 typedef struct {
56 	int			wsaved;
57 	__siginfo_reg_window	reg_window[__SIGC_MAXWIN];
58 	unsigned long		rwbuf_stkptrs[__SIGC_MAXWIN];
59 } __siginfo_rwin_t;
60 
61 #ifdef CONFIG_SPARC64
62 typedef struct {
63 	unsigned   int si_float_regs [64];
64 	unsigned   long si_fsr;
65 	unsigned   long si_gsr;
66 	unsigned   long si_fprs;
67 } __siginfo_fpu_t;
68 
69 /* This is what SunOS doesn't, so we have to write this alone
70    and do it properly. */
71 struct sigcontext {
72 	/* The size of this array has to match SI_MAX_SIZE from siginfo.h */
73 	char			sigc_info[128];
74 	struct {
75 		unsigned long	u_regs[16]; /* globals and ins */
76 		unsigned long	tstate;
77 		unsigned long	tpc;
78 		unsigned long	tnpc;
79 		unsigned int	y;
80 		unsigned int	fprs;
81 	}			sigc_regs;
82 	__siginfo_fpu_t *	sigc_fpu_save;
83 	struct {
84 		void	*	ss_sp;
85 		int		ss_flags;
86 		unsigned long	ss_size;
87 	}			sigc_stack;
88 	unsigned long		sigc_mask;
89 	__siginfo_rwin_t *	sigc_rwin_save;
90 };
91 
92 #else
93 
94 typedef struct {
95 	unsigned long si_float_regs [32];
96 	unsigned long si_fsr;
97 	unsigned long si_fpqdepth;
98 	struct {
99 		unsigned long *insn_addr;
100 		unsigned long insn;
101 	} si_fpqueue [16];
102 } __siginfo_fpu_t;
103 #endif /* (CONFIG_SPARC64) */
104 
105 
106 #endif /* !(__ASSEMBLY__) */
107 
108 #endif /* (__KERNEL__) */
109 
110 #endif /* !(__SPARC_SIGCONTEXT_H) */
111