projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 431dc804 RB |
1 | #ifndef __ASM_COMPAT_SIGNAL_H |
| 2 | #define __ASM_COMPAT_SIGNAL_H | |
| 3 | ||
| 4 | #include <linux/bug.h> | |
| 5 | #include <linux/compat.h> | |
| 6 | #include <linux/compiler.h> | |
| 7 | ||
| 151fd6ac RB |
8 | #include <asm/signal.h> |
| 9 | #include <asm/siginfo.h> | |
| 10 | ||
| 4c156994 RB |
11 | #include <asm/uaccess.h> |
| 12 | ||
| a76f3a41 PK |
13 | #define SI_PAD_SIZE32 ((SI_MAX_SIZE/sizeof(int)) - 3) |
| 14 | ||
| 15 | typedef struct compat_siginfo { | |
| 16 | int si_signo; | |
| 17 | int si_code; | |
| 18 | int si_errno; | |
| 19 | ||
| 20 | union { | |
| 21 | int _pad[SI_PAD_SIZE32]; | |
| 22 | ||
| 23 | /* kill() */ | |
| 24 | struct { | |
| 25 | compat_pid_t _pid; /* sender's pid */ | |
| 26 | compat_uid_t _uid; /* sender's uid */ | |
| 27 | } _kill; | |
| 28 | ||
| 29 | /* SIGCHLD */ | |
| 30 | struct { | |
| 31 | compat_pid_t _pid; /* which child */ | |
| 32 | compat_uid_t _uid; /* sender's uid */ | |
| 33 | int _status; /* exit code */ | |
| 34 | compat_clock_t _utime; | |
| 35 | compat_clock_t _stime; | |
| 36 | } _sigchld; | |
| 37 | ||
| 38 | /* IRIX SIGCHLD */ | |
| 39 | struct { | |
| 40 | compat_pid_t _pid; /* which child */ | |
| 41 | compat_clock_t _utime; | |
| 42 | int _status; /* exit code */ | |
| 43 | compat_clock_t _stime; | |
| 44 | } _irix_sigchld; | |
| 45 | ||
| 46 | /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ | |
| 47 | struct { | |
| 48 | s32 _addr; /* faulting insn/memory ref. */ | |
| 49 | } _sigfault; | |
| 50 | ||
| 51 | /* SIGPOLL, SIGXFSZ (To do ...) */ | |
| 52 | struct { | |
| 53 | int _band; /* POLL_IN, POLL_OUT, POLL_MSG */ | |
| 54 | int _fd; | |
| 55 | } _sigpoll; | |
| 56 | ||
| 57 | /* POSIX.1b timers */ | |
| 58 | struct { | |
| 59 | timer_t _tid; /* timer id */ | |
| 60 | int _overrun; /* overrun count */ | |
| 61 | compat_sigval_t _sigval;/* same as below */ | |
| 62 | int _sys_private; /* not to be passed to user */ | |
| 63 | } _timer; | |
| 64 | ||
| 65 | /* POSIX.1b signals */ | |
| 66 | struct { | |
| 67 | compat_pid_t _pid; /* sender's pid */ | |
| 68 | compat_uid_t _uid; /* sender's uid */ | |
| 69 | compat_sigval_t _sigval; | |
| 70 | } _rt; | |
| 71 | ||
| 72 | } _sifields; | |
| 73 | } compat_siginfo_t; | |
| 74 | ||
| 431dc804 RB |
75 | static inline int __copy_conv_sigset_to_user(compat_sigset_t __user *d, |
| 76 | const sigset_t *s) | |
| 77 | { | |
| 78 | int err; | |
| 79 | ||
| 80 | BUG_ON(sizeof(*d) != sizeof(*s)); | |
| 81 | BUG_ON(_NSIG_WORDS != 2); | |
| 82 | ||
| 83 | err = __put_user(s->sig[0], &d->sig[0]); | |
| 84 | err |= __put_user(s->sig[0] >> 32, &d->sig[1]); | |
| 85 | err |= __put_user(s->sig[1], &d->sig[2]); | |
| 86 | err |= __put_user(s->sig[1] >> 32, &d->sig[3]); | |
| 87 | ||
| 88 | return err; | |
| 89 | } | |
| 90 | ||
| 91 | static inline int __copy_conv_sigset_from_user(sigset_t *d, | |
| 92 | const compat_sigset_t __user *s) | |
| 93 | { | |
| 94 | int err; | |
| 95 | union sigset_u { | |
| 96 | sigset_t s; | |
| 97 | compat_sigset_t c; | |
| 98 | } *u = (union sigset_u *) d; | |
| 99 | ||
| 100 | BUG_ON(sizeof(*d) != sizeof(*s)); | |
| 101 | BUG_ON(_NSIG_WORDS != 2); | |
| 102 | ||
| 431dc804 RB |
103 | #ifdef CONFIG_CPU_BIG_ENDIAN |
| 104 | err = __get_user(u->c.sig[1], &s->sig[0]); | |
| 105 | err |= __get_user(u->c.sig[0], &s->sig[1]); | |
| 106 | err |= __get_user(u->c.sig[3], &s->sig[2]); | |
| 107 | err |= __get_user(u->c.sig[2], &s->sig[3]); | |
| 108 | #endif | |
| 109 | #ifdef CONFIG_CPU_LITTLE_ENDIAN | |
| 110 | err = __get_user(u->c.sig[0], &s->sig[0]); | |
| 111 | err |= __get_user(u->c.sig[1], &s->sig[1]); | |
| 112 | err |= __get_user(u->c.sig[2], &s->sig[2]); | |
| 113 | err |= __get_user(u->c.sig[3], &s->sig[3]); | |
| 114 | #endif | |
| 115 | ||
| 116 | return err; | |
| 117 | } | |
| 118 | ||
| 119 | #endif /* __ASM_COMPAT_SIGNAL_H */ |