diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux')
| -rw-r--r-- | sysdeps/unix/sysv/linux/Makefile | 14 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/alpha/bits/signum.h | 69 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/bits/signum.h | 91 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/hppa/bits/signum.h | 110 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/mips/bits/signum.h | 94 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sparc/bits/signum.h | 70 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/tst-signal-numbers.sh | 86 |
7 files changed, 252 insertions, 282 deletions
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile index 1a170c29d6..8b340d4988 100644 --- a/sysdeps/unix/sysv/linux/Makefile +++ b/sysdeps/unix/sysv/linux/Makefile @@ -128,6 +128,20 @@ sysdep_headers += sys/timex.h bits/timex.h sysdep_routines += ntp_gettime ntp_gettimex endif +ifeq ($(subdir),signal) +tests-special += $(objpfx)tst-signal-numbers.out +# Depending on signal.o* is a hack. What we actually want is a dependency +# on signal.h and everything it includes. That's impractical to write +# in this context, but signal.c includes signal.h and not much else so it'll +# be conservatively correct. +$(objpfx)tst-signal-numbers.out: \ + ../sysdeps/unix/sysv/linux/tst-signal-numbers.sh \ + $(objpfx)signal.o* + AWK=$(AWK) $(SHELL) ../sysdeps/unix/sysv/linux/tst-signal-numbers.sh \ + $(CC) $(patsubst -DMODULE_NAME=%,-DMODULE_NAME=testsuite,$(CPPFLAGS)) \ + < /dev/null > $@; $(evaluate-test) +endif + ifeq ($(subdir),socket) sysdep_headers += net/if_ppp.h net/ppp-comp.h \ net/ppp_defs.h net/if_arp.h net/route.h net/ethernet.h \ diff --git a/sysdeps/unix/sysv/linux/alpha/bits/signum.h b/sysdeps/unix/sysv/linux/alpha/bits/signum.h index e5cc5218e3..8227be91b5 100644 --- a/sysdeps/unix/sysv/linux/alpha/bits/signum.h +++ b/sysdeps/unix/sysv/linux/alpha/bits/signum.h @@ -16,66 +16,25 @@ License along with the GNU C Library. If not, see <http://www.gnu.org/licenses/>. */ -#ifdef _SIGNAL_H +#ifndef _BITS_SIGNUM_H +#define _BITS_SIGNUM_H 1 -/* Fake signal functions. */ -#define SIG_ERR ((__sighandler_t) -1) /* Error return. */ -#define SIG_DFL ((__sighandler_t) 0) /* Default action. */ -#define SIG_IGN ((__sighandler_t) 1) /* Ignore signal. */ - -#ifdef __USE_XOPEN -# define SIG_HOLD ((__sighandler_t) 2) /* Add signal to hold mask. */ +#ifndef _SIGNAL_H +#error "Never include <bits/signum.h> directly; use <signal.h> instead." #endif -/* - * Linux/AXP has different signal numbers that Linux/i386: I'm trying - * to make it OSF/1 binary compatible, at least for normal binaries. - */ -#define SIGHUP 1 -#define SIGINT 2 -#define SIGQUIT 3 -#define SIGILL 4 -#define SIGTRAP 5 -#define SIGABRT 6 -#define SIGEMT 7 -#define SIGFPE 8 -#define SIGKILL 9 -#define SIGBUS 10 -#define SIGSEGV 11 -#define SIGSYS 12 -#define SIGPIPE 13 -#define SIGALRM 14 -#define SIGTERM 15 -#define SIGURG 16 -#define SIGSTOP 17 -#define SIGTSTP 18 -#define SIGCONT 19 -#define SIGCHLD 20 -#define SIGCLD SIGCHLD -#define SIGTTIN 21 -#define SIGTTOU 22 -#define SIGIO 23 -#define SIGXCPU 24 -#define SIGXFSZ 25 -#define SIGVTALRM 26 -#define SIGPROF 27 -#define SIGWINCH 28 -#define SIGINFO 29 -#define SIGUSR1 30 -#define SIGUSR2 31 - -#define SIGPOLL SIGIO -#define SIGPWR SIGINFO -#define SIGIOT SIGABRT +#include <bits/signum-generic.h> -#define _NSIG 65 /* Biggest signal number + 1. */ +/* Adjustments and additions to the signal number constants for + Linux/Alpha. Signal values on this platform were chosen for OSF/1 + binary compatibility, and are therefore almost identical to the + BSD-derived defaults. */ -#define SIGRTMIN (__libc_current_sigrtmin ()) -#define SIGRTMAX (__libc_current_sigrtmax ()) +#define SIGEMT 7 /* Emulator trap (4.2 BSD). */ +#define SIGINFO 29 /* Information request (BSD). */ +#define SIGPWR SIGINFO /* Power failure imminent (System V). */ -/* These are the hard limits of the kernel. These values should not be - used directly at user level. */ -#define __SIGRTMIN 32 -#define __SIGRTMAX (_NSIG - 1) +#undef __SIGRTMAX +#define __SIGRTMAX 64 #endif /* <signal.h> included. */ diff --git a/sysdeps/unix/sysv/linux/bits/signum.h b/sysdeps/unix/sysv/linux/bits/signum.h index e30efead0d..1a68255d02 100644 --- a/sysdeps/unix/sysv/linux/bits/signum.h +++ b/sysdeps/unix/sysv/linux/bits/signum.h @@ -16,64 +16,43 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#ifdef _SIGNAL_H +#ifndef _BITS_SIGNUM_H +#define _BITS_SIGNUM_H 1 -/* Fake signal functions. */ -#define SIG_ERR ((__sighandler_t) -1) /* Error return. */ -#define SIG_DFL ((__sighandler_t) 0) /* Default action. */ -#define SIG_IGN ((__sighandler_t) 1) /* Ignore signal. */ - -#ifdef __USE_XOPEN -# define SIG_HOLD ((__sighandler_t) 2) /* Add signal to hold mask. */ +#ifndef _SIGNAL_H +#error "Never include <bits/signum.h> directly; use <signal.h> instead." #endif - -/* Signals. */ -#define SIGHUP 1 /* Hangup (POSIX). */ -#define SIGINT 2 /* Interrupt (ANSI). */ -#define SIGQUIT 3 /* Quit (POSIX). */ -#define SIGILL 4 /* Illegal instruction (ANSI). */ -#define SIGTRAP 5 /* Trace trap (POSIX). */ -#define SIGABRT 6 /* Abort (ANSI). */ -#define SIGIOT 6 /* IOT trap (4.2 BSD). */ -#define SIGBUS 7 /* BUS error (4.2 BSD). */ -#define SIGFPE 8 /* Floating-point exception (ANSI). */ -#define SIGKILL 9 /* Kill, unblockable (POSIX). */ -#define SIGUSR1 10 /* User-defined signal 1 (POSIX). */ -#define SIGSEGV 11 /* Segmentation violation (ANSI). */ -#define SIGUSR2 12 /* User-defined signal 2 (POSIX). */ -#define SIGPIPE 13 /* Broken pipe (POSIX). */ -#define SIGALRM 14 /* Alarm clock (POSIX). */ -#define SIGTERM 15 /* Termination (ANSI). */ -#define SIGSTKFLT 16 /* Stack fault. */ -#define SIGCLD SIGCHLD /* Same as SIGCHLD (System V). */ -#define SIGCHLD 17 /* Child status has changed (POSIX). */ -#define SIGCONT 18 /* Continue (POSIX). */ -#define SIGSTOP 19 /* Stop, unblockable (POSIX). */ -#define SIGTSTP 20 /* Keyboard stop (POSIX). */ -#define SIGTTIN 21 /* Background read from tty (POSIX). */ -#define SIGTTOU 22 /* Background write to tty (POSIX). */ -#define SIGURG 23 /* Urgent condition on socket (4.2 BSD). */ -#define SIGXCPU 24 /* CPU limit exceeded (4.2 BSD). */ -#define SIGXFSZ 25 /* File size limit exceeded (4.2 BSD). */ -#define SIGVTALRM 26 /* Virtual alarm clock (4.2 BSD). */ -#define SIGPROF 27 /* Profiling alarm clock (4.2 BSD). */ -#define SIGWINCH 28 /* Window size change (4.3 BSD, Sun). */ -#define SIGPOLL SIGIO /* Pollable event occurred (System V). */ -#define SIGIO 29 /* I/O now possible (4.2 BSD). */ -#define SIGPWR 30 /* Power failure restart (System V). */ -#define SIGSYS 31 /* Bad system call. */ -#define SIGUNUSED 31 - -#define _NSIG 65 /* Biggest signal number + 1 - (including real-time signals). */ - -#define SIGRTMIN (__libc_current_sigrtmin ()) -#define SIGRTMAX (__libc_current_sigrtmax ()) - -/* These are the hard limits of the kernel. These values should not be - used directly at user level. */ -#define __SIGRTMIN 32 -#define __SIGRTMAX (_NSIG - 1) +#include <bits/signum-generic.h> + +/* Adjustments and additions to the signal number constants for + most Linux systems. */ + +#define SIGSTKFLT 16 /* Stack fault (obsolete). */ +#define SIGPWR 30 /* Power failure imminent. */ + +#undef SIGBUS +#define SIGBUS 7 +#undef SIGUSR1 +#define SIGUSR1 10 +#undef SIGUSR2 +#define SIGUSR2 12 +#undef SIGCHLD +#define SIGCHLD 17 +#undef SIGCONT +#define SIGCONT 18 +#undef SIGSTOP +#define SIGSTOP 19 +#undef SIGTSTP +#define SIGTSTP 20 +#undef SIGURG +#define SIGURG 23 +#undef SIGPOLL +#define SIGPOLL 29 +#undef SIGSYS +#define SIGSYS 31 + +#undef __SIGRTMAX +#define __SIGRTMAX 64 #endif /* <signal.h> included. */ diff --git a/sysdeps/unix/sysv/linux/hppa/bits/signum.h b/sysdeps/unix/sysv/linux/hppa/bits/signum.h index 20c0b60c9f..5f54d1c893 100644 --- a/sysdeps/unix/sysv/linux/hppa/bits/signum.h +++ b/sysdeps/unix/sysv/linux/hppa/bits/signum.h @@ -16,74 +16,60 @@ License along with the GNU C Library. If not, see <http://www.gnu.org/licenses/>. */ -#ifdef _SIGNAL_H +#ifndef _BITS_SIGNUM_H +#define _BITS_SIGNUM_H 1 -/* Fake signal functions. */ -#define SIG_ERR ((__sighandler_t) -1) /* Error return. */ -#define SIG_DFL ((__sighandler_t) 0) /* Default action. */ -#define SIG_IGN ((__sighandler_t) 1) /* Ignore signal. */ - -#ifdef __USE_XOPEN -# define SIG_HOLD ((__sighandler_t) 2) /* Add signal to hold mask. */ +#ifndef _SIGNAL_H +#error "Never include <bits/signum.h> directly; use <signal.h> instead." #endif +#include <bits/signum-generic.h> -/* Signals. */ -#define SIGHUP 1 /* Hangup (POSIX). */ -#define SIGINT 2 /* Interrupt (ANSI). */ -#define SIGQUIT 3 /* Quit (POSIX). */ -#define SIGILL 4 /* Illegal instruction (ANSI). */ -#define SIGTRAP 5 /* Trace trap (POSIX). */ -#define SIGABRT 6 /* Abort (ANSI). */ -#define SIGIOT 6 /* IOT trap (4.2 BSD). */ -#define SIGSTKFLT 7 /* Stack fault. */ -#define SIGFPE 8 /* Floating-point exception (ANSI). */ -#define SIGKILL 9 /* Kill, unblockable (POSIX). */ -#define SIGBUS 10 /* BUS error (4.2 BSD). */ -#define SIGSEGV 11 /* Segmentation violation (ANSI). */ -#define SIGXCPU 12 /* CPU limit exceeded (4.2 BSD). */ -#define SIGPIPE 13 /* Broken pipe (POSIX). */ -#define SIGALRM 14 /* Alarm clock (POSIX). */ -#define SIGTERM 15 /* Termination (ANSI). */ -#define SIGUSR1 16 /* User-defined signal 1 (POSIX). */ -#define SIGUSR2 17 /* User-defined signal 2 (POSIX). */ -#define SIGCLD SIGCHLD /* Same as SIGCHLD (System V). */ -#define SIGCHLD 18 /* Child status has changed (POSIX). */ -#define SIGPWR 19 /* Power failure restart (System V). */ -#define SIGVTALRM 20 /* Virtual alarm clock (4.2 BSD). */ -#define SIGPROF 21 /* Profiling alarm clock (4.2 BSD). */ -#define SIGPOLL SIGIO /* Pollable event occurred (System V). */ -#define SIGIO 22 /* I/O now possible (4.2 BSD). */ -#define SIGWINCH 23 /* Window size change (4.3 BSD, Sun). */ -#define SIGSTOP 24 /* Stop, unblockable (POSIX). */ -#define SIGTSTP 25 /* Keyboard stop (POSIX). */ -#define SIGCONT 26 /* Continue (POSIX). */ -#define SIGTTIN 27 /* Background read from tty (POSIX). */ -#define SIGTTOU 28 /* Background write to tty (POSIX). */ -#define SIGURG 29 /* Urgent condition on socket (4.2 BSD). */ -#define SIGXFSZ 30 /* File size limit exceeded (4.2 BSD). */ -#define SIGSYS 31 /* Bad system call. */ -#define SIGUNUSED 31 +/* Adjustments and additions to the signal number constants for + Linux/HPPA. These values were originally chosen for HP/UX + compatibility, but were renumbered as of kernel 3.17 and glibc 2.21 + to accommodate software (notably systemd) that assumed at least 29 + real-time signal numbers would be available. SIGEMT and SIGLOST + were removed, and the values of SIGSTKFLT, SIGXCPU, XIGXFSZ, and + SIGSYS were changed, enabling __SIGRTMIN to be 32. */ -#define _NSIG 65 /* Biggest signal number + 1 - (including real-time signals). */ +#define SIGSTKFLT 7 /* Stack fault (obsolete). */ +#define SIGPWR 19 /* Power failure imminent. */ -#define SIGRTMIN (__libc_current_sigrtmin ()) -#define SIGRTMAX (__libc_current_sigrtmax ()) +#undef SIGXCPU +#define SIGXCPU 12 +#undef SIGUSR1 +#define SIGUSR1 16 +#undef SIGUSR2 +#define SIGUSR2 17 +#undef SIGCHLD +#define SIGCHLD 18 +#undef SIGVTALRM +#define SIGVTALRM 20 +#undef SIGPROF +#define SIGPROF 21 +#undef SIGPOLL +#define SIGPOLL 22 +#undef SIGWINCH +#define SIGWINCH 23 +#undef SIGSTOP +#define SIGSTOP 24 +#undef SIGTSTP +#define SIGTSTP 25 +#undef SIGCONT +#define SIGCONT 26 +#undef SIGTTIN +#define SIGTTIN 27 +#undef SIGTTOU +#define SIGTTOU 28 +#undef SIGURG +#define SIGURG 29 +#undef SIGXFSZ +#define SIGXFSZ 30 +#undef SIGSYS +#define SIGSYS 31 -/* These are the hard limits of the kernel. These values should not be - used directly at user level. */ -/* In the Linux kernel version 3.17, and glibc 2.21, the signal numbers - were rearranged in order to make hppa like every other arch. Previously - we started __SIGRTMIN at 37, and that meant several pieces of important - software, including systemd, would fail to build. To support systemd we - removed SIGEMT and SIGLOST, and rearranged the others according to - expected values. This is technically an ABI incompatible change, but - because zero applications use SIGSTKFLT, SIGXCPU, SIGXFSZ and SIGSYS - nothing broke. Nothing uses SIGEMT and SIGLOST, and they were present - for HPUX compatibility which is no longer supported. Thus because - nothing breaks we don't do any compatibility work here. */ -#define __SIGRTMIN 32 /* Kernel > 3.17. */ -#define __SIGRTMAX (_NSIG - 1) +#undef __SIGRTMAX +#define __SIGRTMAX 64 #endif /* <signal.h> included. */ diff --git a/sysdeps/unix/sysv/linux/mips/bits/signum.h b/sysdeps/unix/sysv/linux/mips/bits/signum.h index 6c31e01cd7..1672847212 100644 --- a/sysdeps/unix/sysv/linux/mips/bits/signum.h +++ b/sysdeps/unix/sysv/linux/mips/bits/signum.h @@ -1,4 +1,4 @@ -/* Signal number definitions. Linux version. +/* Signal number definitions. Linux/MIPS version. Copyright (C) 1995-2017 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -16,63 +16,53 @@ License along with the GNU C Library. If not, see <http://www.gnu.org/licenses/>. */ -#ifdef _SIGNAL_H +#ifndef _BITS_SIGNUM_H +#define _BITS_SIGNUM_H 1 -/* Fake signal functions. */ -#define SIG_ERR ((__sighandler_t) -1) /* Error return. */ -#define SIG_DFL ((__sighandler_t) 0) /* Default action. */ -#define SIG_IGN ((__sighandler_t) 1) /* Ignore signal. */ - -#ifdef __USE_XOPEN -# define SIG_HOLD ((__sighandler_t) 2) /* Add signal to hold mask. */ +#ifndef _SIGNAL_H +#error "Never include <bits/signum.h> directly; use <signal.h> instead." #endif +#include <bits/signum-generic.h> -#define SIGHUP 1 /* Hangup (POSIX). */ -#define SIGINT 2 /* Interrupt (ANSI). */ -#define SIGQUIT 3 /* Quit (POSIX). */ -#define SIGILL 4 /* Illegal instruction (ANSI). */ -#define SIGTRAP 5 /* Trace trap (POSIX). */ -#define SIGIOT 6 /* IOT trap (4.2 BSD). */ -#define SIGABRT SIGIOT /* Abort (ANSI). */ -#define SIGEMT 7 -#define SIGFPE 8 /* Floating-point exception (ANSI). */ -#define SIGKILL 9 /* Kill, unblockable (POSIX). */ -#define SIGBUS 10 /* BUS error (4.2 BSD). */ -#define SIGSEGV 11 /* Segmentation violation (ANSI). */ -#define SIGSYS 12 -#define SIGPIPE 13 /* Broken pipe (POSIX). */ -#define SIGALRM 14 /* Alarm clock (POSIX). */ -#define SIGTERM 15 /* Termination (ANSI). */ -#define SIGUSR1 16 /* User-defined signal 1 (POSIX). */ -#define SIGUSR2 17 /* User-defined signal 2 (POSIX). */ -#define SIGCHLD 18 /* Child status has changed (POSIX). */ -#define SIGCLD SIGCHLD /* Same as SIGCHLD (System V). */ -#define SIGPWR 19 /* Power failure restart (System V). */ -#define SIGWINCH 20 /* Window size change (4.3 BSD, Sun). */ -#define SIGURG 21 /* Urgent condition on socket (4.2 BSD). */ -#define SIGIO 22 /* I/O now possible (4.2 BSD). */ -#define SIGPOLL SIGIO /* Pollable event occurred (System V). */ -#define SIGSTOP 23 /* Stop, unblockable (POSIX). */ -#define SIGTSTP 24 /* Keyboard stop (POSIX). */ -#define SIGCONT 25 /* Continue (POSIX). */ -#define SIGTTIN 26 /* Background read from tty (POSIX). */ -#define SIGTTOU 27 /* Background write to tty (POSIX). */ -#define SIGVTALRM 28 /* Virtual alarm clock (4.2 BSD). */ -#define SIGPROF 29 /* Profiling alarm clock (4.2 BSD). */ -#define SIGXCPU 30 /* CPU limit exceeded (4.2 BSD). */ -#define SIGXFSZ 31 /* File size limit exceeded (4.2 BSD). */ - +/* Adjustments and additions to the signal number constants for + Linux/MIPS. */ -#define _NSIG 128 /* Biggest signal number + 1 - (including real-time signals). */ +#define SIGEMT 7 /* Emulator trap. */ +#define SIGPWR 19 /* Power failure imminent. */ -#define SIGRTMIN (__libc_current_sigrtmin ()) -#define SIGRTMAX (__libc_current_sigrtmax ()) +#undef SIGUSR1 +#define SIGUSR1 16 +#undef SIGUSR2 +#define SIGUSR2 17 +#undef SIGCHLD +#define SIGCHLD 18 +#undef SIGWINCH +#define SIGWINCH 20 +#undef SIGURG +#define SIGURG 21 +#undef SIGPOLL +#define SIGPOLL 22 +#undef SIGSTOP +#define SIGSTOP 23 +#undef SIGTSTP +#define SIGTSTP 24 +#undef SIGCONT +#define SIGCONT 25 +#undef SIGTTIN +#define SIGTTIN 26 +#undef SIGTTOU +#define SIGTTOU 27 +#undef SIGVTALRM +#define SIGVTALRM 28 +#undef SIGPROF +#define SIGPROF 29 +#undef SIGXCPU +#define SIGXCPU 30 +#undef SIGXFSZ +#define SIGXFSZ 31 -/* These are the hard limits of the kernel. These values should not be - used directly at user level. */ -#define __SIGRTMIN 32 -#define __SIGRTMAX (_NSIG - 1) +#undef __SIGRTMAX +#define __SIGRTMAX 127 #endif /* <signal.h> included. */ diff --git a/sysdeps/unix/sysv/linux/sparc/bits/signum.h b/sysdeps/unix/sysv/linux/sparc/bits/signum.h index a0c5be5fa5..25341ee42b 100644 --- a/sysdeps/unix/sysv/linux/sparc/bits/signum.h +++ b/sysdeps/unix/sysv/linux/sparc/bits/signum.h @@ -16,68 +16,24 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#ifdef _SIGNAL_H +#ifndef _BITS_SIGNUM_H +#define _BITS_SIGNUM_H 1 -/* Fake signal functions. */ -#define SIG_ERR ((__sighandler_t) -1) /* Error return. */ -#define SIG_DFL ((__sighandler_t) 0) /* Default action. */ -#define SIG_IGN ((__sighandler_t) 1) /* Ignore signal. */ - -#ifdef __USE_XOPEN -# define SIG_HOLD ((__sighandler_t) 2) /* Add signal to hold mask. */ +#ifndef _SIGNAL_H +#error "Never include <bits/signum.h> directly; use <signal.h> instead." #endif -/* - * Linux/SPARC has different signal numbers that Linux/i386: I'm trying - * to make it OSF/1 binary compatible, at least for normal binaries. - */ -#define SIGHUP 1 -#define SIGINT 2 -#define SIGQUIT 3 -#define SIGILL 4 -#define SIGTRAP 5 -#define SIGABRT 6 -#define SIGIOT 6 -#define SIGEMT 7 -#define SIGFPE 8 -#define SIGKILL 9 -#define SIGBUS 10 -#define SIGSEGV 11 -#define SIGSYS 12 -#define SIGPIPE 13 -#define SIGALRM 14 -#define SIGTERM 15 -#define SIGURG 16 - -/* SunOS values which deviate from the Linux/i386 ones */ -#define SIGSTOP 17 -#define SIGTSTP 18 -#define SIGCONT 19 -#define SIGCHLD 20 -#define SIGCLD SIGCHLD /* Same as SIGCHLD (System V). */ -#define SIGTTIN 21 -#define SIGTTOU 22 -#define SIGIO 23 -#define SIGPOLL SIGIO /* SysV name for SIGIO */ -#define SIGXCPU 24 -#define SIGXFSZ 25 -#define SIGVTALRM 26 -#define SIGPROF 27 -#define SIGWINCH 28 -#define SIGLOST 29 -#define SIGPWR SIGLOST -#define SIGUSR1 30 -#define SIGUSR2 31 +#include <bits/signum-generic.h> -#define _NSIG 65 /* Biggest signal number + 1 - (including real-time signals). */ +/* Adjustments and additions to the signal number constants for + Linux/SPARC systems. Signal values on this platform were chosen + for SunOS binary compatibility. */ -#define SIGRTMIN (__libc_current_sigrtmin ()) -#define SIGRTMAX (__libc_current_sigrtmax ()) +#define SIGEMT 7 /* Emulator trap. */ +#define SIGLOST 29 /* Resource lost (Sun); server died (GNU). */ +#define SIGPWR SIGLOST /* Power failure imminent (SysV). */ -/* These are the hard limits of the kernel. These values should not be - used directly at user level. */ -#define __SIGRTMIN 32 -#define __SIGRTMAX (_NSIG - 1) +#undef __SIGRTMAX +#define __SIGRTMAX 64 #endif /* <signal.h> included. */ diff --git a/sysdeps/unix/sysv/linux/tst-signal-numbers.sh b/sysdeps/unix/sysv/linux/tst-signal-numbers.sh new file mode 100644 index 0000000000..bdd75fbc25 --- /dev/null +++ b/sysdeps/unix/sysv/linux/tst-signal-numbers.sh @@ -0,0 +1,86 @@ +#! /bin/sh +# Test that glibc's signal numbers match the kernel's. +# Copyright (C) 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 +# <http://www.gnu.org/licenses/>. + +set -e +if [ -n "$BASH_VERSION" ]; then set -o pipefail; fi +LC_ALL=C; export LC_ALL + +# We cannot use Linux's asm/signal.h to define signal numbers, because +# it isn't sufficiently namespace-clean. Instead, this test checks +# that our signal numbers match the kernel's. This script expects +# "$@" to be $(CC) $(CPPFLAGS) as set by glibc's Makefiles, and $AWK +# to be set in the environment. + +# Before doing anything else, fail if the compiler doesn't work. +"$@" -E -xc -dM - < /dev/null > /dev/null + +tmpG=`mktemp -t signums_glibc.XXXXXXXXX` +tmpK=`mktemp -t signums_kernel.XXXXXXXXX` +trap "rm -f '$tmpG' '$tmpK'" 0 + +# Filter out constants that aren't signal numbers. +# If SIGPOLL is defined as SIGIO, swap it around so SIGIO is defined as +# SIGPOLL. Similarly for SIGABRT and SIGIOT. +# Discard obsolete signal numbers and unrelated constants: +# SIGCLD, SIGIOT, SIGSWI, SIGUNUSED. +# SIGSTKSZ, SIGRTMIN, SIGRTMAX. +# Then sort the list. +filter_defines () +{ + $AWK ' +/^#define SIG[A-Z]+ ([0-9]+|SIG[A-Z0-9]+)$/ { signals[$2] = $3 } +END { + if ("SIGPOLL" in signals && "SIGIO" in signals && + signals["SIGPOLL"] == "SIGIO") { + signals["SIGPOLL"] = signals["SIGIO"] + signals["SIGIO"] = "SIGPOLL" + } + if ("SIGABRT" in signals && "SIGIOT" in signals && + signals["SIGABRT"] == "SIGIOT") { + signals["SIGABRT"] = signals["SIGIOT"] + signals["SIGIOT"] = "SIGABRT" + } + for (sig in signals) { + if (sig !~ /^SIG(CLD|IOT|RT(MIN|MAX)|STKSZ|SWI|UNUSED)$/) { + printf("#define %s %s\n", sig, signals[sig]) + } + } +}' | sort +} + +# $CC may contain command-line switches, so it should be word-split. +printf '%s' '#define _GNU_SOURCE 1 +#include <signal.h> +' | + "$@" -E -xc -dM - | + filter_defines > "$tmpG" + +printf '%s' '#define _GNU_SOURCE 1 +#define __ASSEMBLER__ 1 +#include <asm/signal.h> +' | + "$@" -E -xc -dM - | + filter_defines > "$tmpK" + +if cmp -s "$tmpG" "$tmpK"; then + exit 0 +else + diff -u "$tmpG" "$tmpK" + exit 1 +fi |