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343 lines
10 KiB
343 lines
10 KiB
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
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#ifndef _UAPI_ASM_GENERIC_SIGINFO_H |
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#define _UAPI_ASM_GENERIC_SIGINFO_H |
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#include <linux/compiler.h> |
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#include <linux/types.h> |
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typedef union sigval { |
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int sival_int; |
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void __user *sival_ptr; |
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} sigval_t; |
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#define SI_MAX_SIZE 128 |
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/* |
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* The default "si_band" type is "long", as specified by POSIX. |
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* However, some architectures want to override this to "int" |
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* for historical compatibility reasons, so we allow that. |
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*/ |
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#ifndef __ARCH_SI_BAND_T |
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#define __ARCH_SI_BAND_T long |
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#endif |
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#ifndef __ARCH_SI_CLOCK_T |
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#define __ARCH_SI_CLOCK_T __kernel_clock_t |
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#endif |
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#ifndef __ARCH_SI_ATTRIBUTES |
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#define __ARCH_SI_ATTRIBUTES |
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#endif |
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union __sifields { |
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/* kill() */ |
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struct { |
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__kernel_pid_t _pid; /* sender's pid */ |
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__kernel_uid32_t _uid; /* sender's uid */ |
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} _kill; |
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/* POSIX.1b timers */ |
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struct { |
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__kernel_timer_t _tid; /* timer id */ |
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int _overrun; /* overrun count */ |
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sigval_t _sigval; /* same as below */ |
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int _sys_private; /* not to be passed to user */ |
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} _timer; |
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/* POSIX.1b signals */ |
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struct { |
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__kernel_pid_t _pid; /* sender's pid */ |
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__kernel_uid32_t _uid; /* sender's uid */ |
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sigval_t _sigval; |
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} _rt; |
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/* SIGCHLD */ |
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struct { |
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__kernel_pid_t _pid; /* which child */ |
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__kernel_uid32_t _uid; /* sender's uid */ |
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int _status; /* exit code */ |
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__ARCH_SI_CLOCK_T _utime; |
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__ARCH_SI_CLOCK_T _stime; |
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} _sigchld; |
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/* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGTRAP, SIGEMT */ |
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struct { |
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void __user *_addr; /* faulting insn/memory ref. */ |
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#ifdef __ARCH_SI_TRAPNO |
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int _trapno; /* TRAP # which caused the signal */ |
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#endif |
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#ifdef __ia64__ |
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int _imm; /* immediate value for "break" */ |
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unsigned int _flags; /* see ia64 si_flags */ |
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unsigned long _isr; /* isr */ |
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#endif |
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#define __ADDR_BND_PKEY_PAD (__alignof__(void *) < sizeof(short) ? \ |
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sizeof(short) : __alignof__(void *)) |
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union { |
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/* |
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* used when si_code=BUS_MCEERR_AR or |
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* used when si_code=BUS_MCEERR_AO |
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*/ |
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short _addr_lsb; /* LSB of the reported address */ |
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/* used when si_code=SEGV_BNDERR */ |
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struct { |
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char _dummy_bnd[__ADDR_BND_PKEY_PAD]; |
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void __user *_lower; |
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void __user *_upper; |
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} _addr_bnd; |
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/* used when si_code=SEGV_PKUERR */ |
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struct { |
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char _dummy_pkey[__ADDR_BND_PKEY_PAD]; |
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__u32 _pkey; |
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} _addr_pkey; |
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}; |
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} _sigfault; |
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/* SIGPOLL */ |
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struct { |
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__ARCH_SI_BAND_T _band; /* POLL_IN, POLL_OUT, POLL_MSG */ |
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int _fd; |
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} _sigpoll; |
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/* SIGSYS */ |
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struct { |
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void __user *_call_addr; /* calling user insn */ |
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int _syscall; /* triggering system call number */ |
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unsigned int _arch; /* AUDIT_ARCH_* of syscall */ |
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} _sigsys; |
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}; |
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#ifndef __ARCH_HAS_SWAPPED_SIGINFO |
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#define __SIGINFO \ |
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struct { \ |
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int si_signo; \ |
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int si_errno; \ |
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int si_code; \ |
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union __sifields _sifields; \ |
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} |
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#else |
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#define __SIGINFO \ |
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struct { \ |
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int si_signo; \ |
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int si_code; \ |
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int si_errno; \ |
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union __sifields _sifields; \ |
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} |
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#endif /* __ARCH_HAS_SWAPPED_SIGINFO */ |
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typedef struct siginfo { |
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union { |
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__SIGINFO; |
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int _si_pad[SI_MAX_SIZE/sizeof(int)]; |
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}; |
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} __ARCH_SI_ATTRIBUTES siginfo_t; |
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/* |
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* How these fields are to be accessed. |
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*/ |
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#define si_pid _sifields._kill._pid |
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#define si_uid _sifields._kill._uid |
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#define si_tid _sifields._timer._tid |
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#define si_overrun _sifields._timer._overrun |
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#define si_sys_private _sifields._timer._sys_private |
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#define si_status _sifields._sigchld._status |
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#define si_utime _sifields._sigchld._utime |
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#define si_stime _sifields._sigchld._stime |
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#define si_value _sifields._rt._sigval |
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#define si_int _sifields._rt._sigval.sival_int |
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#define si_ptr _sifields._rt._sigval.sival_ptr |
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#define si_addr _sifields._sigfault._addr |
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#ifdef __ARCH_SI_TRAPNO |
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#define si_trapno _sifields._sigfault._trapno |
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#endif |
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#define si_addr_lsb _sifields._sigfault._addr_lsb |
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#define si_lower _sifields._sigfault._addr_bnd._lower |
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#define si_upper _sifields._sigfault._addr_bnd._upper |
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#define si_pkey _sifields._sigfault._addr_pkey._pkey |
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#define si_band _sifields._sigpoll._band |
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#define si_fd _sifields._sigpoll._fd |
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#define si_call_addr _sifields._sigsys._call_addr |
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#define si_syscall _sifields._sigsys._syscall |
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#define si_arch _sifields._sigsys._arch |
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/* |
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* si_code values |
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* Digital reserves positive values for kernel-generated signals. |
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*/ |
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#define SI_USER 0 /* sent by kill, sigsend, raise */ |
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#define SI_KERNEL 0x80 /* sent by the kernel from somewhere */ |
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#define SI_QUEUE -1 /* sent by sigqueue */ |
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#define SI_TIMER -2 /* sent by timer expiration */ |
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#define SI_MESGQ -3 /* sent by real time mesq state change */ |
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#define SI_ASYNCIO -4 /* sent by AIO completion */ |
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#define SI_SIGIO -5 /* sent by queued SIGIO */ |
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#define SI_TKILL -6 /* sent by tkill system call */ |
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#define SI_DETHREAD -7 /* sent by execve() killing subsidiary threads */ |
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#define SI_ASYNCNL -60 /* sent by glibc async name lookup completion */ |
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#define SI_FROMUSER(siptr) ((siptr)->si_code <= 0) |
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#define SI_FROMKERNEL(siptr) ((siptr)->si_code > 0) |
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/* |
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* SIGILL si_codes |
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*/ |
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#define ILL_ILLOPC 1 /* illegal opcode */ |
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#define ILL_ILLOPN 2 /* illegal operand */ |
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#define ILL_ILLADR 3 /* illegal addressing mode */ |
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#define ILL_ILLTRP 4 /* illegal trap */ |
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#define ILL_PRVOPC 5 /* privileged opcode */ |
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#define ILL_PRVREG 6 /* privileged register */ |
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#define ILL_COPROC 7 /* coprocessor error */ |
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#define ILL_BADSTK 8 /* internal stack error */ |
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#define ILL_BADIADDR 9 /* unimplemented instruction address */ |
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#define __ILL_BREAK 10 /* illegal break */ |
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#define __ILL_BNDMOD 11 /* bundle-update (modification) in progress */ |
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#define NSIGILL 11 |
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/* |
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* SIGFPE si_codes |
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*/ |
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#define FPE_INTDIV 1 /* integer divide by zero */ |
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#define FPE_INTOVF 2 /* integer overflow */ |
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#define FPE_FLTDIV 3 /* floating point divide by zero */ |
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#define FPE_FLTOVF 4 /* floating point overflow */ |
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#define FPE_FLTUND 5 /* floating point underflow */ |
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#define FPE_FLTRES 6 /* floating point inexact result */ |
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#define FPE_FLTINV 7 /* floating point invalid operation */ |
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#define FPE_FLTSUB 8 /* subscript out of range */ |
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#define __FPE_DECOVF 9 /* decimal overflow */ |
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#define __FPE_DECDIV 10 /* decimal division by zero */ |
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#define __FPE_DECERR 11 /* packed decimal error */ |
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#define __FPE_INVASC 12 /* invalid ASCII digit */ |
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#define __FPE_INVDEC 13 /* invalid decimal digit */ |
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#define FPE_FLTUNK 14 /* undiagnosed floating-point exception */ |
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#define FPE_CONDTRAP 15 /* trap on condition */ |
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#define NSIGFPE 15 |
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/* |
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* SIGSEGV si_codes |
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*/ |
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#define SEGV_MAPERR 1 /* address not mapped to object */ |
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#define SEGV_ACCERR 2 /* invalid permissions for mapped object */ |
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#define SEGV_BNDERR 3 /* failed address bound checks */ |
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#ifdef __ia64__ |
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# define __SEGV_PSTKOVF 4 /* paragraph stack overflow */ |
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#else |
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# define SEGV_PKUERR 4 /* failed protection key checks */ |
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#endif |
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#define SEGV_ACCADI 5 /* ADI not enabled for mapped object */ |
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#define SEGV_ADIDERR 6 /* Disrupting MCD error */ |
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#define SEGV_ADIPERR 7 /* Precise MCD exception */ |
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#define SEGV_MTEAERR 8 /* Asynchronous ARM MTE error */ |
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#define SEGV_MTESERR 9 /* Synchronous ARM MTE exception */ |
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#define NSIGSEGV 9 |
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/* |
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* SIGBUS si_codes |
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*/ |
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#define BUS_ADRALN 1 /* invalid address alignment */ |
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#define BUS_ADRERR 2 /* non-existent physical address */ |
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#define BUS_OBJERR 3 /* object specific hardware error */ |
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/* hardware memory error consumed on a machine check: action required */ |
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#define BUS_MCEERR_AR 4 |
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/* hardware memory error detected in process but not consumed: action optional*/ |
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#define BUS_MCEERR_AO 5 |
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#define NSIGBUS 5 |
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/* |
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* SIGTRAP si_codes |
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*/ |
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#define TRAP_BRKPT 1 /* process breakpoint */ |
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#define TRAP_TRACE 2 /* process trace trap */ |
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#define TRAP_BRANCH 3 /* process taken branch trap */ |
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#define TRAP_HWBKPT 4 /* hardware breakpoint/watchpoint */ |
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#define TRAP_UNK 5 /* undiagnosed trap */ |
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#define NSIGTRAP 5 |
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/* |
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* There is an additional set of SIGTRAP si_codes used by ptrace |
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* that are of the form: ((PTRACE_EVENT_XXX << 8) | SIGTRAP) |
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*/ |
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/* |
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* SIGCHLD si_codes |
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*/ |
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#define CLD_EXITED 1 /* child has exited */ |
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#define CLD_KILLED 2 /* child was killed */ |
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#define CLD_DUMPED 3 /* child terminated abnormally */ |
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#define CLD_TRAPPED 4 /* traced child has trapped */ |
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#define CLD_STOPPED 5 /* child has stopped */ |
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#define CLD_CONTINUED 6 /* stopped child has continued */ |
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#define NSIGCHLD 6 |
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/* |
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* SIGPOLL (or any other signal without signal specific si_codes) si_codes |
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*/ |
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#define POLL_IN 1 /* data input available */ |
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#define POLL_OUT 2 /* output buffers available */ |
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#define POLL_MSG 3 /* input message available */ |
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#define POLL_ERR 4 /* i/o error */ |
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#define POLL_PRI 5 /* high priority input available */ |
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#define POLL_HUP 6 /* device disconnected */ |
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#define NSIGPOLL 6 |
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/* |
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* SIGSYS si_codes |
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*/ |
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#define SYS_SECCOMP 1 /* seccomp triggered */ |
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#define SYS_USER_DISPATCH 2 /* syscall user dispatch triggered */ |
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#define NSIGSYS 2 |
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/* |
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* SIGEMT si_codes |
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*/ |
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#define EMT_TAGOVF 1 /* tag overflow */ |
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#define NSIGEMT 1 |
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/* |
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* sigevent definitions |
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* |
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* It seems likely that SIGEV_THREAD will have to be handled from |
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* userspace, libpthread transmuting it to SIGEV_SIGNAL, which the |
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* thread manager then catches and does the appropriate nonsense. |
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* However, everything is written out here so as to not get lost. |
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*/ |
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#define SIGEV_SIGNAL 0 /* notify via signal */ |
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#define SIGEV_NONE 1 /* other notification: meaningless */ |
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#define SIGEV_THREAD 2 /* deliver via thread creation */ |
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#define SIGEV_THREAD_ID 4 /* deliver to thread */ |
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/* |
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* This works because the alignment is ok on all current architectures |
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* but we leave open this being overridden in the future |
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*/ |
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#ifndef __ARCH_SIGEV_PREAMBLE_SIZE |
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#define __ARCH_SIGEV_PREAMBLE_SIZE (sizeof(int) * 2 + sizeof(sigval_t)) |
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#endif |
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#define SIGEV_MAX_SIZE 64 |
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#define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE - __ARCH_SIGEV_PREAMBLE_SIZE) \ |
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/ sizeof(int)) |
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typedef struct sigevent { |
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sigval_t sigev_value; |
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int sigev_signo; |
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int sigev_notify; |
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union { |
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int _pad[SIGEV_PAD_SIZE]; |
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int _tid; |
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struct { |
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void (*_function)(sigval_t); |
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void *_attribute; /* really pthread_attr_t */ |
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} _sigev_thread; |
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} _sigev_un; |
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} sigevent_t; |
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#define sigev_notify_function _sigev_un._sigev_thread._function |
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#define sigev_notify_attributes _sigev_un._sigev_thread._attribute |
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#define sigev_notify_thread_id _sigev_un._tid |
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#endif /* _UAPI_ASM_GENERIC_SIGINFO_H */
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