1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __SPARC_SIGCONTEXT_H
3 #define __SPARC_SIGCONTEXT_H
4
5 #include <asm/ptrace.h>
6 #include <uapi/asm/sigcontext.h>
7
8 #ifndef __ASSEMBLY__
9
10 #define __SUNOS_MAXWIN 31
11
12 /* This is what SunOS does, so shall I unless we use new 32bit signals or rt signals. */
13 struct sigcontext32 {
14 int sigc_onstack; /* state to restore */
15 int sigc_mask; /* sigmask to restore */
16 int sigc_sp; /* stack pointer */
17 int sigc_pc; /* program counter */
18 int sigc_npc; /* next program counter */
19 int sigc_psr; /* for condition codes etc */
20 int sigc_g1; /* User uses these two registers */
21 int sigc_o0; /* within the trampoline code. */
22
23 /* Now comes information regarding the users window set
24 * at the time of the signal.
25 */
26 int sigc_oswins; /* outstanding windows */
27
28 /* stack ptrs for each regwin buf */
29 unsigned int sigc_spbuf[__SUNOS_MAXWIN];
30
31 /* Windows to restore after signal */
32 struct reg_window32 sigc_wbuf[__SUNOS_MAXWIN];
33 };
34
35
36 /* This is what we use for 32bit new non-rt signals. */
37
38 typedef struct {
39 struct {
40 unsigned int psr;
41 unsigned int pc;
42 unsigned int npc;
43 unsigned int y;
44 unsigned int u_regs[16]; /* globals and ins */
45 } si_regs;
46 int si_mask;
47 } __siginfo32_t;
48
49 #define __SIGC_MAXWIN 7
50
51 typedef struct {
52 unsigned long locals[8];
53 unsigned long ins[8];
54 } __siginfo_reg_window;
55
56 typedef struct {
57 int wsaved;
58 __siginfo_reg_window reg_window[__SIGC_MAXWIN];
59 unsigned long rwbuf_stkptrs[__SIGC_MAXWIN];
60 } __siginfo_rwin_t;
61
62 #ifdef CONFIG_SPARC64
63 typedef struct {
64 unsigned int si_float_regs [64];
65 unsigned long si_fsr;
66 unsigned long si_gsr;
67 unsigned long si_fprs;
68 } __siginfo_fpu_t;
69
70 /* This is what SunOS doesn't, so we have to write this alone
71 and do it properly. */
72 struct sigcontext {
73 /* The size of this array has to match SI_MAX_SIZE from siginfo.h */
74 char sigc_info[128];
75 struct {
76 unsigned long u_regs[16]; /* globals and ins */
77 unsigned long tstate;
78 unsigned long tpc;
79 unsigned long tnpc;
80 unsigned int y;
81 unsigned int fprs;
82 } sigc_regs;
83 __siginfo_fpu_t * sigc_fpu_save;
84 struct {
85 void * ss_sp;
86 int ss_flags;
87 unsigned long ss_size;
88 } sigc_stack;
89 unsigned long sigc_mask;
90 __siginfo_rwin_t * sigc_rwin_save;
91 };
92
93 #else
94
95 typedef struct {
96 unsigned long si_float_regs [32];
97 unsigned long si_fsr;
98 unsigned long si_fpqdepth;
99 struct {
100 unsigned long *insn_addr;
101 unsigned long insn;
102 } si_fpqueue [16];
103 } __siginfo_fpu_t;
104 #endif /* (CONFIG_SPARC64) */
105
106
107 #endif /* !(__ASSEMBLY__) */
108
109 #endif /* !(__SPARC_SIGCONTEXT_H) */