1 /*
2  *  FreeBSD siginfo related definitions
3  *
4  *  Copyright (c) 2013 Stacey D. Son
5  *
6  *  This program is free software; you can redistribute it and/or modify
7  *  it under the terms of the GNU General Public License as published by
8  *  the Free Software Foundation; either version 2 of the License, or
9  *  (at your option) any later version.
10  *
11  *  This program is distributed in the hope that it will be useful,
12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *  GNU General Public License for more details.
15  *
16  *  You should have received a copy of the GNU General Public License
17  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
18  */
19 
20 #ifndef TARGET_OS_SIGINFO_H
21 #define TARGET_OS_SIGINFO_H
22 
23 #define TARGET_NSIG         128
24 #define TARGET_NSIG_BPW     (sizeof(uint32_t) * 8)
25 #define TARGET_NSIG_WORDS   (TARGET_NSIG / TARGET_NSIG_BPW)
26 
27 /* this struct defines a stack used during syscall handling */
28 typedef struct target_sigaltstack {
29     abi_long    ss_sp;
30     abi_ulong   ss_size;
31     abi_long    ss_flags;
32 } target_stack_t;
33 
34 typedef struct {
35     uint32_t __bits[TARGET_NSIG_WORDS];
36 } target_sigset_t;
37 
38 struct target_sigaction {
39     abi_ulong   _sa_handler;
40     int32_t     sa_flags;
41     target_sigset_t sa_mask;
42 };
43 
44 typedef union target_sigval {
45     int32_t sival_int;
46     abi_ulong sival_ptr;
47     int32_t sigval_int;
48     abi_ulong sigval_ptr;
49 } target_sigval_t;
50 
51 typedef struct target_siginfo {
52     int32_t si_signo;   /* signal number */
53     int32_t si_errno;   /* errno association */
54     int32_t si_code;    /* signal code */
55     int32_t si_pid;     /* sending process */
56     int32_t si_uid;     /* sender's ruid */
57     int32_t si_status;  /* exit value */
58     abi_ulong si_addr;  /* faulting instruction */
59     union target_sigval si_value;   /* signal value */
60     union {
61         struct {
62             int32_t _trapno;    /* machine specific trap code */
63         } _fault;
64 
65         /* POSIX.1b timers */
66         struct {
67             int32_t _timerid;
68             int32_t _overrun;
69         } _timer;
70 
71         struct {
72             int32_t _mqd;
73         } _mesgp;
74 
75         /* SIGPOLL -- Not really generated in FreeBSD ??? */
76         struct {
77             int _band;  /* POLL_IN, POLL_OUT, POLL_MSG */
78         } _poll;
79 
80         struct {
81             int _mqd;
82         } _mesgq;
83 
84         struct {
85             /*
86              * Syscall number for signals delivered as a result of system calls
87              * denied by Capsicum.
88              */
89             int _syscall;
90         } _capsicum;
91 
92         /* Spare for future growth */
93         struct {
94             abi_long __spare1__;
95             int32_t  __spare2_[7];
96         } __spare__;
97     } _reason;
98 } target_siginfo_t;
99 
100 struct target_sigevent {
101     abi_int sigev_notify;
102     abi_int sigev_signo;
103     target_sigval_t sigev_value;
104     union {
105         abi_int _threadid;
106 
107         /*
108          * The kernel (and thus QEMU) never looks at these;
109          * they're only used as part of the ABI between a
110          * userspace program and libc.
111          */
112         struct {
113             abi_ulong _function;
114             abi_ulong _attribute;
115         } _sigev_thread;
116         abi_ushort _kevent_flags;
117         abi_long _pad[8];
118     } _sigev_un;
119 };
120 
121 #define target_si_signo     si_signo
122 #define target_si_code      si_code
123 #define target_si_errno     si_errno
124 #define target_si_addr      si_addr
125 
126 /* SIGILL si_codes */
127 #define TARGET_ILL_ILLOPC   (1) /* Illegal opcode. */
128 #define TARGET_ILL_ILLOPN   (2) /* Illegal operand. */
129 #define TARGET_ILL_ILLADR   (3) /* Illegal addressing mode. */
130 #define TARGET_ILL_ILLTRP   (4) /* Illegal trap. */
131 #define TARGET_ILL_PRVOPC   (5) /* Privileged opcode. */
132 #define TARGET_ILL_PRVREG   (6) /* Privileged register. */
133 #define TARGET_ILL_COPROC   (7) /* Coprocessor error. */
134 #define TARGET_ILL_BADSTK   (8) /* Internal stack error. */
135 
136 /* SIGSEGV si_codes */
137 #define TARGET_SEGV_MAPERR  (1) /* address not mapped to object */
138 #define TARGET_SEGV_ACCERR  (2) /* invalid permissions for mapped object */
139 
140 /* SIGTRAP si_codes */
141 #define TARGET_TRAP_BRKPT   (1) /* process beakpoint */
142 #define TARGET_TRAP_TRACE   (2) /* process trace trap */
143 
144 /* SIGBUS si_codes */
145 #define TARGET_BUS_ADRALN   (1)
146 #define TARGET_BUS_ADRERR   (2)
147 #define TARGET_BUS_OBJERR   (3)
148 
149 /* SIGFPE codes */
150 #define TARGET_FPE_INTOVF   (1) /* Integer overflow. */
151 #define TARGET_FPE_INTDIV   (2) /* Integer divide by zero. */
152 #define TARGET_FPE_FLTDIV   (3) /* Floating point divide by zero. */
153 #define TARGET_FPE_FLTOVF   (4) /* Floating point overflow. */
154 #define TARGET_FPE_FLTUND   (5) /* Floating point underflow. */
155 #define TARGET_FPE_FLTRES   (6) /* Floating point inexact result. */
156 #define TARGET_FPE_FLTINV   (7) /* Invalid floating point operation. */
157 #define TARGET_FPE_FLTSUB   (8) /* Subscript out of range. */
158 
159 #endif /* TARGET_OS_SIGINFO_H */
160