diff options
Diffstat (limited to 'include/uapi/asm-generic/siginfo.h')
| -rw-r--r-- | include/uapi/asm-generic/siginfo.h | 193 |
1 files changed, 100 insertions, 93 deletions
diff --git a/include/uapi/asm-generic/siginfo.h b/include/uapi/asm-generic/siginfo.h index 80e2a7227205..cb3d6c267181 100644 --- a/include/uapi/asm-generic/siginfo.h +++ b/include/uapi/asm-generic/siginfo.h @@ -10,18 +10,7 @@ typedef union sigval { void __user *sival_ptr; } sigval_t; -/* - * This is the size (including padding) of the part of the - * struct siginfo that is before the union. - */ -#ifndef __ARCH_SI_PREAMBLE_SIZE -#define __ARCH_SI_PREAMBLE_SIZE (3 * sizeof(int)) -#endif - #define SI_MAX_SIZE 128 -#ifndef SI_PAD_SIZE -#define SI_PAD_SIZE ((SI_MAX_SIZE - __ARCH_SI_PREAMBLE_SIZE) / sizeof(int)) -#endif /* * The default "si_band" type is "long", as specified by POSIX. @@ -40,96 +29,108 @@ typedef union sigval { #define __ARCH_SI_ATTRIBUTES #endif -typedef struct siginfo { - int si_signo; -#ifndef __ARCH_HAS_SWAPPED_SIGINFO - int si_errno; - int si_code; -#else - int si_code; - int si_errno; -#endif - - union { - int _pad[SI_PAD_SIZE]; - - /* kill() */ - struct { - __kernel_pid_t _pid; /* sender's pid */ - __kernel_uid32_t _uid; /* sender's uid */ - } _kill; - - /* POSIX.1b timers */ - struct { - __kernel_timer_t _tid; /* timer id */ - int _overrun; /* overrun count */ - sigval_t _sigval; /* same as below */ - int _sys_private; /* not to be passed to user */ - } _timer; - - /* POSIX.1b signals */ - struct { - __kernel_pid_t _pid; /* sender's pid */ - __kernel_uid32_t _uid; /* sender's uid */ - sigval_t _sigval; - } _rt; - - /* SIGCHLD */ - struct { - __kernel_pid_t _pid; /* which child */ - __kernel_uid32_t _uid; /* sender's uid */ - int _status; /* exit code */ - __ARCH_SI_CLOCK_T _utime; - __ARCH_SI_CLOCK_T _stime; - } _sigchld; - - /* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGTRAP, SIGEMT */ - struct { - void __user *_addr; /* faulting insn/memory ref. */ +union __sifields { + /* kill() */ + struct { + __kernel_pid_t _pid; /* sender's pid */ + __kernel_uid32_t _uid; /* sender's uid */ + } _kill; + + /* POSIX.1b timers */ + struct { + __kernel_timer_t _tid; /* timer id */ + int _overrun; /* overrun count */ + sigval_t _sigval; /* same as below */ + int _sys_private; /* not to be passed to user */ + } _timer; + + /* POSIX.1b signals */ + struct { + __kernel_pid_t _pid; /* sender's pid */ + __kernel_uid32_t _uid; /* sender's uid */ + sigval_t _sigval; + } _rt; + + /* SIGCHLD */ + struct { + __kernel_pid_t _pid; /* which child */ + __kernel_uid32_t _uid; /* sender's uid */ + int _status; /* exit code */ + __ARCH_SI_CLOCK_T _utime; + __ARCH_SI_CLOCK_T _stime; + } _sigchld; + + /* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGTRAP, SIGEMT */ + struct { + void __user *_addr; /* faulting insn/memory ref. */ #ifdef __ARCH_SI_TRAPNO - int _trapno; /* TRAP # which caused the signal */ + int _trapno; /* TRAP # which caused the signal */ #endif #ifdef __ia64__ - int _imm; /* immediate value for "break" */ - unsigned int _flags; /* see ia64 si_flags */ - unsigned long _isr; /* isr */ + int _imm; /* immediate value for "break" */ + unsigned int _flags; /* see ia64 si_flags */ + unsigned long _isr; /* isr */ #endif #define __ADDR_BND_PKEY_PAD (__alignof__(void *) < sizeof(short) ? \ sizeof(short) : __alignof__(void *)) - union { - /* - * used when si_code=BUS_MCEERR_AR or - * used when si_code=BUS_MCEERR_AO - */ - short _addr_lsb; /* LSB of the reported address */ - /* used when si_code=SEGV_BNDERR */ - struct { - char _dummy_bnd[__ADDR_BND_PKEY_PAD]; - void __user *_lower; - void __user *_upper; - } _addr_bnd; - /* used when si_code=SEGV_PKUERR */ - struct { - char _dummy_pkey[__ADDR_BND_PKEY_PAD]; - __u32 _pkey; - } _addr_pkey; - }; - } _sigfault; - - /* SIGPOLL */ - struct { - __ARCH_SI_BAND_T _band; /* POLL_IN, POLL_OUT, POLL_MSG */ - int _fd; - } _sigpoll; + union { + /* + * used when si_code=BUS_MCEERR_AR or + * used when si_code=BUS_MCEERR_AO + */ + short _addr_lsb; /* LSB of the reported address */ + /* used when si_code=SEGV_BNDERR */ + struct { + char _dummy_bnd[__ADDR_BND_PKEY_PAD]; + void __user *_lower; + void __user *_upper; + } _addr_bnd; + /* used when si_code=SEGV_PKUERR */ + struct { + char _dummy_pkey[__ADDR_BND_PKEY_PAD]; + __u32 _pkey; + } _addr_pkey; + }; + } _sigfault; + + /* SIGPOLL */ + struct { + __ARCH_SI_BAND_T _band; /* POLL_IN, POLL_OUT, POLL_MSG */ + int _fd; + } _sigpoll; + + /* SIGSYS */ + struct { + void __user *_call_addr; /* calling user insn */ + int _syscall; /* triggering system call number */ + unsigned int _arch; /* AUDIT_ARCH_* of syscall */ + } _sigsys; +}; - /* SIGSYS */ - struct { - void __user *_call_addr; /* calling user insn */ - int _syscall; /* triggering system call number */ - unsigned int _arch; /* AUDIT_ARCH_* of syscall */ - } _sigsys; - } _sifields; +#ifndef __ARCH_HAS_SWAPPED_SIGINFO +#define __SIGINFO \ +struct { \ + int si_signo; \ + int si_errno; \ + int si_code; \ + union __sifields _sifields; \ +} +#else +#define __SIGINFO \ +struct { \ + int si_signo; \ + int si_code; \ + int si_errno; \ + union __sifields _sifields; \ +} +#endif /* __ARCH_HAS_SWAPPED_SIGINFO */ + +typedef struct siginfo { + union { + __SIGINFO; + int _si_pad[SI_MAX_SIZE/sizeof(int)]; + }; } __ARCH_SI_ATTRIBUTES siginfo_t; /* @@ -286,6 +287,12 @@ typedef struct siginfo { #define NSIGSYS 1 /* + * SIGEMT si_codes + */ +#define EMT_TAGOVF 1 /* tag overflow */ +#define NSIGEMT 1 + +/* * sigevent definitions * * It seems likely that SIGEV_THREAD will have to be handled from |