From a992f506ff7162da2afa5a6151cc6f15949ceef4 Mon Sep 17 00:00:00 2001 From: Zack Weinberg Date: Thu, 1 Dec 2016 19:24:13 -0500 Subject: Remove __need macros from signal.h. The types affected are __sig_atomic_t, sig_atomic_t, __sigset_t, sigset_t, sigval_t, sigevent_t, and siginfo_t. __sig_atomic_t is a scalar, so it's now directly available from bits/types.h. The others get bits/types/ headers. Side effects include: There have been small changes to which non-signal headers expose which subset of the signal-related types. A couple of architectures' nested siginfo_t fields had to be renamed to prevent undesired macro expansion. Internal code that wants to manipulate signal masks must now include (which is not installed) and should be aware that __sigaddset, __sigandset, __sigdelset, __sigemptyset, and __sigorset no longer return a value (unlike the public API). Relatedly, the public signal.h no longer declares any of those functions. The obsolete sigmask() macro no longer has a system-specific definition -- in the cases where it matters, it didn't work anyway. New Linux architectures should create bits/siginfo-arch.h and/or bits/siginfo-consts-arch.h to customize their siginfo_t, rather than duplicating everything in bits/siginfo.h (which no longer exists). Add new __SI_* macros if necessary. Ports to other operating systems are strongly encouraged to generalize this scheme further. * bits/sigevent-consts.h * bits/siginfo-consts.h * bits/types/__sigset_t.h * bits/types/sigevent_t.h * bits/types/siginfo_t.h * sysdeps/unix/sysv/linux/bits/sigevent-consts.h * sysdeps/unix/sysv/linux/bits/siginfo-consts.h * sysdeps/unix/sysv/linux/bits/types/__sigset_t.h * sysdeps/unix/sysv/linux/bits/types/sigevent_t.h * sysdeps/unix/sysv/linux/bits/types/siginfo_t.h: New system-dependent bits headers. * sysdeps/unix/sysv/linux/bits/siginfo-arch.h * sysdeps/unix/sysv/linux/bits/siginfo-consts-arch.h * sysdeps/unix/sysv/linux/ia64/bits/siginfo-arch.h * sysdeps/unix/sysv/linux/ia64/bits/siginfo-consts-arch.h * sysdeps/unix/sysv/linux/mips/bits/siginfo-arch.h * sysdeps/unix/sysv/linux/sparc/bits/siginfo-arch.h * sysdeps/unix/sysv/linux/tile/bits/siginfo-arch.h * sysdeps/unix/sysv/linux/tile/bits/siginfo-consts-arch.h * sysdeps/unix/sysv/linux/x86/bits/siginfo-arch.h: New Linux-only system-dependent bits headers. * signal/bits/types/sig_atomic_t.h * signal/bits/types/sigset_t.h * signal/bits/types/sigval_t.h: New non-system-dependent bits headers. * sysdeps/generic/sigsetops.h * sysdeps/unix/sysv/linux/sigsetops.h: New internal headers. * include/bits/types/sig_atomic_t.h * include/bits/types/sigset_t.h * include/bits/types/sigval_t.h: New wrappers. * signal/sigsetops.h * bits/siginfo.h * bits/sigset.h * sysdeps/unix/sysv/linux/bits/siginfo.h * sysdeps/unix/sysv/linux/bits/sigset.h * sysdeps/unix/sysv/linux/ia64/bits/siginfo.h * sysdeps/unix/sysv/linux/mips/bits/siginfo.h * sysdeps/unix/sysv/linux/s390/bits/siginfo.h * sysdeps/unix/sysv/linux/sparc/bits/siginfo.h * sysdeps/unix/sysv/linux/tile/bits/siginfo.h * sysdeps/unix/sysv/linux/x86/bits/siginfo.h: Deleted. * signal/Makefile, sysdeps/unix/sysv/linux/Makefile: Update lists of installed headers. * posix/bits/types.h: Define __sig_atomic_t here. * signal/signal.h: Use the new bits headers; no need to handle __need_sig_atomic_t nor __need_sigset_t. Don't use __sigmask to define sigmask. * include/signal.h: No need to handle __need_sig_atomic_t nor __need_sigset_t. Don't define __sigemptyset. * io/sys/poll.h, setjmp/setjmp.h * sysdeps/arm/sys/ucontext.h, sysdeps/generic/sys/ucontext.h * sysdeps/i386/sys/ucontext.h, sysdeps/m68k/sys/ucontext.h * sysdeps/mach/hurd/i386/bits/sigcontext.h * sysdeps/mips/sys/ucontext.h, sysdeps/powerpc/novmxsetjmp.h * sysdeps/pthread/bits/sigthread.h * sysdeps/unix/sysv/linux/hppa/sys/ucontext.h * sysdeps/unix/sysv/linux/m68k/sys/ucontext.h * sysdeps/unix/sysv/linux/mips/sys/ucontext.h * sysdeps/unix/sysv/linux/nios2/sys/ucontext.h * sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h * sysdeps/unix/sysv/linux/s390/sys/ucontext.h * sysdeps/unix/sysv/linux/sh/sys/ucontext.h * sysdeps/unix/sysv/linux/sparc/sys/ucontext.h * sysdeps/unix/sysv/linux/tile/sys/ucontext.h * sysdeps/unix/sysv/linux/x86/sys/ucontext.h: Use bits/types/__sigset_t.h. * misc/sys/select.h, posix/spawn.h * sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h * sysdeps/unix/sysv/linux/sys/epoll.h * sysdeps/unix/sysv/linux/sys/signalfd.h: Use bits/types/sigset_t.h. * resolv/netdb.h, rt/mqueue.h: Use bits/types/sigevent_t.h. * rt/aio.h: Use bits/types/sigevent_t.h and bits/sigevent-consts.h. * socket/sys/socket.h: Don't include bits/sigset.h. * login/utmp_file.c, shadow/lckpwdf.c, signal/sigandset.c * signal/sigisempty.c, stdlib/abort.c, sysdeps/posix/profil.c * sysdeps/posix/sigignore.c, sysdeps/posix/sigintr.c * sysdeps/posix/signal.c, sysdeps/posix/sigset.c * sysdeps/posix/sprofil.c, sysdeps/posix/sysv_signal.c * sysdeps/unix/sysv/linux/nptl-signals.h: Include sigsetops.h. * signal/sigaddset.c, signal/sigandset.c, signal/sigdelset.c * signal/sigorset.c, stdlib/abort.c, sysdeps/posix/sigignore.c * sysdeps/posix/signal.c, sysdeps/posix/sigset.c: __sigaddset, __sigandset, __sigdelset, __sigemptyset, __sigorset now return no value. * signal/sigaddset.c, signal/sigdelset.c, signal/sigismem.c Include , , and instead of "sigsetops.h". * signal/sigsetops.c: Explicitly define __sigismember, __sigaddset, and __sigdelset as compatibility symbols. * signal/Versions: Correct commentary on __sigpause, __sigaddset, __sigdelset, __sigismember. * inet/rcmd.c: Include sigsetops.h. Convert old code using __sigblock/__sigsetmask to use __sigprocmask and friends. --- sysdeps/unix/sysv/linux/x86/bits/siginfo.h | 360 ----------------------------- 1 file changed, 360 deletions(-) delete mode 100644 sysdeps/unix/sysv/linux/x86/bits/siginfo.h (limited to 'sysdeps/unix/sysv/linux/x86/bits/siginfo.h') diff --git a/sysdeps/unix/sysv/linux/x86/bits/siginfo.h b/sysdeps/unix/sysv/linux/x86/bits/siginfo.h deleted file mode 100644 index 569359980d..0000000000 --- a/sysdeps/unix/sysv/linux/x86/bits/siginfo.h +++ /dev/null @@ -1,360 +0,0 @@ -/* siginfo_t, sigevent and constants. Linux x86-64 version. - Copyright (C) 2012-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#if !defined _SIGNAL_H && !defined __need_siginfo_t \ - && !defined __need_sigevent_t -# error "Never include this file directly. Use instead" -#endif - -#include - -#if (!defined __have_sigval_t \ - && (defined _SIGNAL_H || defined __need_siginfo_t \ - || defined __need_sigevent_t)) -# define __have_sigval_t 1 - -/* Type for data associated with a signal. */ -typedef union sigval - { - int sival_int; - void *sival_ptr; - } sigval_t; -#endif - -#if (!defined __have_siginfo_t \ - && (defined _SIGNAL_H || defined __need_siginfo_t)) -# define __have_siginfo_t 1 - -# define __SI_MAX_SIZE 128 -# if __WORDSIZE == 64 -# define __SI_PAD_SIZE ((__SI_MAX_SIZE / sizeof (int)) - 4) -# else -# define __SI_PAD_SIZE ((__SI_MAX_SIZE / sizeof (int)) - 3) -# endif - -# if defined __x86_64__ && __WORDSIZE == 32 -/* si_utime and si_stime must be 4 byte aligned for x32 to match the - kernel. We align siginfo_t to 8 bytes so that si_utime and si_stime - are actually aligned to 8 bytes since their offsets are multiple of - 8 bytes. */ -typedef __clock_t __attribute__ ((__aligned__ (4))) __sigchld_clock_t; -# define __SI_ALIGNMENT __attribute__ ((__aligned__ (8))) -# else -typedef __clock_t __sigchld_clock_t; -# define __SI_ALIGNMENT -# endif - -typedef struct - { - int si_signo; /* Signal number. */ - int si_errno; /* If non-zero, an errno value associated with - this signal, as defined in . */ - int si_code; /* Signal code. */ - - union - { - int _pad[__SI_PAD_SIZE]; - - /* kill(). */ - struct - { - __pid_t si_pid; /* Sending process ID. */ - __uid_t si_uid; /* Real user ID of sending process. */ - } _kill; - - /* POSIX.1b timers. */ - struct - { - int si_tid; /* Timer ID. */ - int si_overrun; /* Overrun count. */ - sigval_t si_sigval; /* Signal value. */ - } _timer; - - /* POSIX.1b signals. */ - struct - { - __pid_t si_pid; /* Sending process ID. */ - __uid_t si_uid; /* Real user ID of sending process. */ - sigval_t si_sigval; /* Signal value. */ - } _rt; - - /* SIGCHLD. */ - struct - { - __pid_t si_pid; /* Which child. */ - __uid_t si_uid; /* Real user ID of sending process. */ - int si_status; /* Exit value or signal. */ - __sigchld_clock_t si_utime; - __sigchld_clock_t si_stime; - } _sigchld; - - /* SIGILL, SIGFPE, SIGSEGV, SIGBUS. */ - struct - { - void *si_addr; /* Faulting insn/memory ref. */ - short int si_addr_lsb; /* Valid LSB of the reported address. */ - struct - { - void *_lower; - void *_upper; - } si_addr_bnd; - } _sigfault; - - /* SIGPOLL. */ - struct - { - long int si_band; /* Band event for SIGPOLL. */ - int si_fd; - } _sigpoll; - - /* SIGSYS. */ - struct - { - void *_call_addr; /* Calling user insn. */ - int _syscall; /* Triggering system call number. */ - unsigned int _arch; /* AUDIT_ARCH_* of syscall. */ - } _sigsys; - } _sifields; - } siginfo_t __SI_ALIGNMENT; - - -/* X/Open requires some more fields with fixed names. */ -# define si_pid _sifields._kill.si_pid -# define si_uid _sifields._kill.si_uid -# define si_timerid _sifields._timer.si_tid -# define si_overrun _sifields._timer.si_overrun -# define si_status _sifields._sigchld.si_status -# define si_utime _sifields._sigchld.si_utime -# define si_stime _sifields._sigchld.si_stime -# define si_value _sifields._rt.si_sigval -# define si_int _sifields._rt.si_sigval.sival_int -# define si_ptr _sifields._rt.si_sigval.sival_ptr -# define si_addr _sifields._sigfault.si_addr -# define si_addr_lsb _sifields._sigfault.si_addr_lsb -# define si_lower _sifields._sigfault.si_addr_bnd._lower -# define si_upper _sifields._sigfault.si_addr_bnd._upper -# define si_band _sifields._sigpoll.si_band -# define si_fd _sifields._sigpoll.si_fd -# define si_call_addr _sifields._sigsys._call_addr -# define si_syscall _sifields._sigsys._syscall -# define si_arch _sifields._sigsys._arch - - -/* Values for `si_code'. Positive values are reserved for kernel-generated - signals. */ -enum -{ - SI_ASYNCNL = -60, /* Sent by asynch name lookup completion. */ -# define SI_ASYNCNL SI_ASYNCNL - SI_TKILL = -6, /* Sent by tkill. */ -# define SI_TKILL SI_TKILL - SI_SIGIO, /* Sent by queued SIGIO. */ -# define SI_SIGIO SI_SIGIO - SI_ASYNCIO, /* Sent by AIO completion. */ -# define SI_ASYNCIO SI_ASYNCIO - SI_MESGQ, /* Sent by real time mesq state change. */ -# define SI_MESGQ SI_MESGQ - SI_TIMER, /* Sent by timer expiration. */ -# define SI_TIMER SI_TIMER - SI_QUEUE, /* Sent by sigqueue. */ -# define SI_QUEUE SI_QUEUE - SI_USER, /* Sent by kill, sigsend. */ -# define SI_USER SI_USER - SI_KERNEL = 0x80 /* Send by kernel. */ -#define SI_KERNEL SI_KERNEL -}; - - -# if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8 -/* `si_code' values for SIGILL signal. */ -enum -{ - ILL_ILLOPC = 1, /* Illegal opcode. */ -# define ILL_ILLOPC ILL_ILLOPC - ILL_ILLOPN, /* Illegal operand. */ -# define ILL_ILLOPN ILL_ILLOPN - ILL_ILLADR, /* Illegal addressing mode. */ -# define ILL_ILLADR ILL_ILLADR - ILL_ILLTRP, /* Illegal trap. */ -# define ILL_ILLTRP ILL_ILLTRP - ILL_PRVOPC, /* Privileged opcode. */ -# define ILL_PRVOPC ILL_PRVOPC - ILL_PRVREG, /* Privileged register. */ -# define ILL_PRVREG ILL_PRVREG - ILL_COPROC, /* Coprocessor error. */ -# define ILL_COPROC ILL_COPROC - ILL_BADSTK /* Internal stack error. */ -# define ILL_BADSTK ILL_BADSTK -}; - -/* `si_code' values for SIGFPE signal. */ -enum -{ - FPE_INTDIV = 1, /* Integer divide by zero. */ -# define FPE_INTDIV FPE_INTDIV - FPE_INTOVF, /* Integer overflow. */ -# define FPE_INTOVF FPE_INTOVF - FPE_FLTDIV, /* Floating point divide by zero. */ -# define FPE_FLTDIV FPE_FLTDIV - FPE_FLTOVF, /* Floating point overflow. */ -# define FPE_FLTOVF FPE_FLTOVF - FPE_FLTUND, /* Floating point underflow. */ -# define FPE_FLTUND FPE_FLTUND - FPE_FLTRES, /* Floating point inexact result. */ -# define FPE_FLTRES FPE_FLTRES - FPE_FLTINV, /* Floating point invalid operation. */ -# define FPE_FLTINV FPE_FLTINV - FPE_FLTSUB /* Subscript out of range. */ -# define FPE_FLTSUB FPE_FLTSUB -}; - -/* `si_code' values for SIGSEGV signal. */ -enum -{ - SEGV_MAPERR = 1, /* Address not mapped to object. */ -# define SEGV_MAPERR SEGV_MAPERR - SEGV_ACCERR /* Invalid permissions for mapped object. */ -# define SEGV_ACCERR SEGV_ACCERR -}; - -/* `si_code' values for SIGBUS signal. */ -enum -{ - BUS_ADRALN = 1, /* Invalid address alignment. */ -# define BUS_ADRALN BUS_ADRALN - BUS_ADRERR, /* Non-existant physical address. */ -# define BUS_ADRERR BUS_ADRERR - BUS_OBJERR, /* Object specific hardware error. */ -# define BUS_OBJERR BUS_OBJERR - BUS_MCEERR_AR, /* Hardware memory error: action required. */ -# define BUS_MCEERR_AR BUS_MCEERR_AR - BUS_MCEERR_AO /* Hardware memory error: action optional. */ -# define BUS_MCEERR_AO BUS_MCEERR_AO -}; -# endif - -# ifdef __USE_XOPEN_EXTENDED -/* `si_code' values for SIGTRAP signal. */ -enum -{ - TRAP_BRKPT = 1, /* Process breakpoint. */ -# define TRAP_BRKPT TRAP_BRKPT - TRAP_TRACE /* Process trace trap. */ -# define TRAP_TRACE TRAP_TRACE -}; -# endif - -# if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8 -/* `si_code' values for SIGCHLD signal. */ -enum -{ - CLD_EXITED = 1, /* Child has exited. */ -# define CLD_EXITED CLD_EXITED - CLD_KILLED, /* Child was killed. */ -# define CLD_KILLED CLD_KILLED - CLD_DUMPED, /* Child terminated abnormally. */ -# define CLD_DUMPED CLD_DUMPED - CLD_TRAPPED, /* Traced child has trapped. */ -# define CLD_TRAPPED CLD_TRAPPED - CLD_STOPPED, /* Child has stopped. */ -# define CLD_STOPPED CLD_STOPPED - CLD_CONTINUED /* Stopped child has continued. */ -# define CLD_CONTINUED CLD_CONTINUED -}; - -/* `si_code' values for SIGPOLL signal. */ -enum -{ - POLL_IN = 1, /* Data input available. */ -# define POLL_IN POLL_IN - POLL_OUT, /* Output buffers available. */ -# define POLL_OUT POLL_OUT - POLL_MSG, /* Input message available. */ -# define POLL_MSG POLL_MSG - POLL_ERR, /* I/O error. */ -# define POLL_ERR POLL_ERR - POLL_PRI, /* High priority input available. */ -# define POLL_PRI POLL_PRI - POLL_HUP /* Device disconnected. */ -# define POLL_HUP POLL_HUP -}; -# endif - -# undef __need_siginfo_t -#endif /* !have siginfo_t && (have _SIGNAL_H || need siginfo_t). */ - - -#if (defined _SIGNAL_H || defined __need_sigevent_t) \ - && !defined __have_sigevent_t -# define __have_sigevent_t 1 - -/* Structure to transport application-defined values with signals. */ -# define __SIGEV_MAX_SIZE 64 -# if __WORDSIZE == 64 -# define __SIGEV_PAD_SIZE ((__SIGEV_MAX_SIZE / sizeof (int)) - 4) -# else -# define __SIGEV_PAD_SIZE ((__SIGEV_MAX_SIZE / sizeof (int)) - 3) -# endif - -/* Forward declaration. */ -# ifndef __have_pthread_attr_t -typedef union pthread_attr_t pthread_attr_t; -# define __have_pthread_attr_t 1 -# endif - -typedef struct sigevent - { - sigval_t sigev_value; - int sigev_signo; - int sigev_notify; - - union - { - int _pad[__SIGEV_PAD_SIZE]; - - /* When SIGEV_SIGNAL and SIGEV_THREAD_ID set, LWP ID of the - thread to receive the signal. */ - __pid_t _tid; - - struct - { - void (*_function) (sigval_t); /* Function to start. */ - pthread_attr_t *_attribute; /* Thread attributes. */ - } _sigev_thread; - } _sigev_un; - } sigevent_t; - -/* POSIX names to access some of the members. */ -# define sigev_notify_function _sigev_un._sigev_thread._function -# define sigev_notify_attributes _sigev_un._sigev_thread._attribute - -/* `sigev_notify' values. */ -enum -{ - SIGEV_SIGNAL = 0, /* Notify via signal. */ -# define SIGEV_SIGNAL SIGEV_SIGNAL - SIGEV_NONE, /* Other notification: meaningless. */ -# define SIGEV_NONE SIGEV_NONE - SIGEV_THREAD, /* Deliver via thread creation. */ -# define SIGEV_THREAD SIGEV_THREAD - - SIGEV_THREAD_ID = 4 /* Send signal to specific thread. */ -#define SIGEV_THREAD_ID SIGEV_THREAD_ID -}; - -#endif /* have _SIGNAL_H. */ -- cgit 1.4.1