1 /*
2  *  i386 dependent signal definitions
3  *
4  *
5  *  This program is free software; you can redistribute it and/or modify
6  *  it under the terms of the GNU General Public License as published by
7  *  the Free Software Foundation; either version 2 of the License, or
8  *  (at your option) any later version.
9  *
10  *  This program is distributed in the hope that it will be useful,
11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  *  GNU General Public License for more details.
14  *
15  *  You should have received a copy of the GNU General Public License
16  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
17  */
18 #ifndef TARGET_ARCH_SIGNAL_H
19 #define TARGET_ARCH_SIGNAL_H
20 
21 #include "cpu.h"
22 
23 /* Size of the signal trampolin code placed on the stack. */
24 #define TARGET_SZSIGCODE    0
25 
26 /* compare to  x86/include/_limits.h */
27 #define TARGET_MINSIGSTKSZ  (512 * 4)               /* min sig stack size */
28 #define TARGET_SIGSTKSZ     (MINSIGSTKSZ + 32768)   /* recommended size */
29 
30 struct target_sigcontext {
31     /* to be added */
32 };
33 
34 typedef struct target_mcontext {
35 } target_mcontext_t;
36 
37 typedef struct target_ucontext {
38     target_sigset_t   uc_sigmask;
39     target_mcontext_t uc_mcontext;
40     abi_ulong         uc_link;
41     target_stack_t    uc_stack;
42     int32_t           uc_flags;
43     int32_t         __spare__[4];
44 } target_ucontext_t;
45 
46 struct target_sigframe {
47     abi_ulong   sf_signum;
48     abi_ulong   sf_siginfo;    /* code or pointer to sf_si */
49     abi_ulong   sf_ucontext;   /* points to sf_uc */
50     abi_ulong   sf_addr;       /* undocumented 4th arg */
51     target_ucontext_t   sf_uc; /* = *sf_uncontext */
52     target_siginfo_t    sf_si; /* = *sf_siginfo (SA_SIGINFO case)*/
53     uint32_t    __spare__[2];
54 };
55 
56 /*
57  * Compare to i386/i386/machdep.c sendsig()
58  * Assumes that target stack frame memory is locked.
59  */
60 static inline abi_long set_sigtramp_args(CPUX86State *regs,
61         int sig, struct target_sigframe *frame, abi_ulong frame_addr,
62         struct target_sigaction *ka)
63 {
64     /* XXX return -TARGET_EOPNOTSUPP; */
65     return 0;
66 }
67 
68 /* Compare to i386/i386/machdep.c get_mcontext() */
69 static inline abi_long get_mcontext(CPUX86State *regs,
70         target_mcontext_t *mcp, int flags)
71 {
72     /* XXX */
73     return -TARGET_EOPNOTSUPP;
74 }
75 
76 /* Compare to i386/i386/machdep.c set_mcontext() */
77 static inline abi_long set_mcontext(CPUX86State *regs,
78         target_mcontext_t *mcp, int srflag)
79 {
80     /* XXX */
81     return -TARGET_EOPNOTSUPP;
82 }
83 
84 static inline abi_long get_ucontext_sigreturn(CPUX86State *regs,
85                         abi_ulong target_sf, abi_ulong *target_uc)
86 {
87     /* XXX */
88     *target_uc = 0;
89     return -TARGET_EOPNOTSUPP;
90 }
91 
92 #endif /* TARGET_ARCH_SIGNAL_H */
93