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1 | #ifndef _PPC64_PPC32_H |
2 | #define _PPC64_PPC32_H | |
3 | ||
4 | #include <linux/compat.h> | |
5 | #include <asm/siginfo.h> | |
6 | #include <asm/signal.h> | |
7 | ||
8 | /* | |
9 | * Data types and macros for providing 32b PowerPC support. | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or | |
12 | * modify it under the terms of the GNU General Public License | |
13 | * as published by the Free Software Foundation; either version | |
14 | * 2 of the License, or (at your option) any later version. | |
15 | */ | |
16 | ||
17 | /* These are here to support 32-bit syscalls on a 64-bit kernel. */ | |
18 | ||
19 | typedef struct compat_siginfo { | |
20 | int si_signo; | |
21 | int si_errno; | |
22 | int si_code; | |
23 | ||
24 | union { | |
25 | int _pad[SI_PAD_SIZE32]; | |
26 | ||
27 | /* kill() */ | |
28 | struct { | |
29 | compat_pid_t _pid; /* sender's pid */ | |
30 | compat_uid_t _uid; /* sender's uid */ | |
31 | } _kill; | |
32 | ||
33 | /* POSIX.1b timers */ | |
34 | struct { | |
35 | timer_t _tid; /* timer id */ | |
36 | int _overrun; /* overrun count */ | |
37 | compat_sigval_t _sigval; /* same as below */ | |
38 | int _sys_private; /* not to be passed to user */ | |
39 | } _timer; | |
40 | ||
41 | /* POSIX.1b signals */ | |
42 | struct { | |
43 | compat_pid_t _pid; /* sender's pid */ | |
44 | compat_uid_t _uid; /* sender's uid */ | |
45 | compat_sigval_t _sigval; | |
46 | } _rt; | |
47 | ||
48 | /* SIGCHLD */ | |
49 | struct { | |
50 | compat_pid_t _pid; /* which child */ | |
51 | compat_uid_t _uid; /* sender's uid */ | |
52 | int _status; /* exit code */ | |
53 | compat_clock_t _utime; | |
54 | compat_clock_t _stime; | |
55 | } _sigchld; | |
56 | ||
57 | /* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGEMT */ | |
58 | struct { | |
59 | unsigned int _addr; /* faulting insn/memory ref. */ | |
60 | } _sigfault; | |
61 | ||
62 | /* SIGPOLL */ | |
63 | struct { | |
64 | int _band; /* POLL_IN, POLL_OUT, POLL_MSG */ | |
65 | int _fd; | |
66 | } _sigpoll; | |
67 | } _sifields; | |
68 | } compat_siginfo_t; | |
69 | ||
70 | #define __old_sigaction32 old_sigaction32 | |
71 | ||
72 | struct __old_sigaction32 { | |
73 | unsigned sa_handler; | |
74 | compat_old_sigset_t sa_mask; | |
75 | unsigned int sa_flags; | |
76 | unsigned sa_restorer; /* not used by Linux/SPARC yet */ | |
77 | }; | |
78 | ||
79 | ||
80 | ||
81 | struct sigaction32 { | |
82 | unsigned int sa_handler; /* Really a pointer, but need to deal with 32 bits */ | |
83 | unsigned int sa_flags; | |
84 | unsigned int sa_restorer; /* Another 32 bit pointer */ | |
85 | compat_sigset_t sa_mask; /* A 32 bit mask */ | |
86 | }; | |
87 | ||
88 | typedef struct sigaltstack_32 { | |
89 | unsigned int ss_sp; | |
90 | int ss_flags; | |
91 | compat_size_t ss_size; | |
92 | } stack_32_t; | |
93 | ||
94 | struct sigcontext32 { | |
95 | unsigned int _unused[4]; | |
96 | int signal; | |
97 | unsigned int handler; | |
98 | unsigned int oldmask; | |
99 | u32 regs; /* 4 byte pointer to the pt_regs32 structure. */ | |
100 | }; | |
101 | ||
102 | struct mcontext32 { | |
103 | elf_gregset_t32 mc_gregs; | |
104 | elf_fpregset_t mc_fregs; | |
105 | unsigned int mc_pad[2]; | |
106 | elf_vrregset_t32 mc_vregs __attribute__((__aligned__(16))); | |
107 | }; | |
108 | ||
109 | struct ucontext32 { | |
110 | unsigned int uc_flags; | |
111 | unsigned int uc_link; | |
112 | stack_32_t uc_stack; | |
113 | int uc_pad[7]; | |
114 | u32 uc_regs; /* points to uc_mcontext field */ | |
115 | compat_sigset_t uc_sigmask; /* mask last for extensibility */ | |
116 | /* glibc has 1024-bit signal masks, ours are 64-bit */ | |
117 | int uc_maskext[30]; | |
118 | int uc_pad2[3]; | |
119 | struct mcontext32 uc_mcontext; | |
120 | }; | |
121 | ||
122 | #endif /* _PPC64_PPC32_H */ |