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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 #ifdef CONFIG_SPARC64
49 typedef struct {
50 	unsigned   int si_float_regs [64];
51 	unsigned   long si_fsr;
52 	unsigned   long si_gsr;
53 	unsigned   long si_fprs;
54 } __siginfo_fpu_t;
55 
56 /* This is what SunOS doesn't, so we have to write this alone
57    and do it properly. */
58 struct sigcontext {
59 	/* The size of this array has to match SI_MAX_SIZE from siginfo.h */
60 	char			sigc_info[128];
61 	struct {
62 		unsigned long	u_regs[16]; /* globals and ins */
63 		unsigned long	tstate;
64 		unsigned long	tpc;
65 		unsigned long	tnpc;
66 		unsigned int	y;
67 		unsigned int	fprs;
68 	}			sigc_regs;
69 	__siginfo_fpu_t *	sigc_fpu_save;
70 	struct {
71 		void	*	ss_sp;
72 		int		ss_flags;
73 		unsigned long	ss_size;
74 	}			sigc_stack;
75 	unsigned long		sigc_mask;
76 };
77 
78 #else
79 
80 typedef struct {
81 	unsigned long si_float_regs [32];
82 	unsigned long si_fsr;
83 	unsigned long si_fpqdepth;
84 	struct {
85 		unsigned long *insn_addr;
86 		unsigned long insn;
87 	} si_fpqueue [16];
88 } __siginfo_fpu_t;
89 #endif /* (CONFIG_SPARC64) */
90 
91 
92 #endif /* !(__ASSEMBLY__) */
93 
94 #endif /* (__KERNEL__) */
95 
96 #endif /* !(__SPARC_SIGCONTEXT_H) */
97