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signal: Add signum-{generic,arch}.h

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It refactor how signals are defined by each architecture.  Instead of
include a generic header (bits/signum-generic.h) and undef non-default
values in an arch specific header (bits/signum.h) the new scheme uses a
common definition (bits/signum-generic.h) and each architectures add
its specific definitions on a new header (bits/signum-arch.h).

For Linux it requires copy some system default definitions to alpha,
hppa, and sparc.  They are historical values and newer ports uses
the generic Linux signum-arch.h.

For Hurd the BSD signum is removed and moved to a new header (it is
used currently only on Hurd).

Checked on a build against all affected ABIs.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
This commit is contained in:
Adhemerval Zanella
2020-04-22 11:02:11 -03:00
parent 6caddd34bd
commit e4e11b1dba
18 changed files with 461 additions and 374 deletions
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65
sysdeps/unix/sysv/linux/mips/bits/signum-arch.h Normal file
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/* Signal number definitions. Linux/MIPS version.
Copyright (C) 1995-2020 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
<https://www.gnu.org/licenses/>. */
#ifndef _BITS_SIGNUM_H
#define _BITS_SIGNUM_H 1
#ifndef _SIGNAL_H
#error "Never include <bits/signum.h> directly; use <signal.h> instead."
#endif
/* Adjustments and additions to the signal number constants for
Linux/MIPS. */
#define SIGEMT 7 /* Emulator trap. */
#define SIGPWR 19 /* Power failure imminent. */
/* Historical signals specified by POSIX. */
#define SIGBUS 10 /* Bus error. */
#define SIGSYS 12 /* Bad system call. */
/* New(er) POSIX signals (1003.1-2008, 1003.1-2013). */
#define SIGURG 21 /* Urgent data is available at a socket. */
#define SIGSTOP 23 /* Stop, unblockable. */
#define SIGTSTP 24 /* Keyboard stop. */
#define SIGCONT 25 /* Continue. */
#define SIGCHLD 18 /* Child terminated or stopped. */
#define SIGTTIN 26 /* Background read from control terminal. */
#define SIGTTOU 27 /* Background write to control terminal. */
#define SIGPOLL 22 /* Pollable event occurred (System V). */
#define SIGXCPU 30 /* CPU time limit exceeded. */
#define SIGVTALRM 28 /* Virtual timer expired. */
#define SIGPROF 29 /* Profiling timer expired. */
#define SIGXFSZ 31 /* File size limit exceeded. */
#define SIGUSR1 16 /* User-defined signal 1. */
#define SIGUSR2 17 /* User-defined signal 2. */
/* Nonstandard signals found in all modern POSIX systems
(including both BSD and Linux). */
#define SIGWINCH 20 /* Window size change (4.3 BSD, Sun). */
/* Archaic names for compatibility. */
#define SIGIO SIGPOLL /* I/O now possible (4.2 BSD). */
#define SIGIOT SIGABRT /* IOT instruction, abort() on a PDP-11. */
#define SIGCLD SIGCHLD /* Old System V name */
/* By default no real-time signals are supported. */
#define __SIGRTMIN 32
#define __SIGRTMAX 127
#endif /* <signal.h> included. */

68
sysdeps/unix/sysv/linux/mips/bits/signum.h
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/* Signal number definitions. Linux/MIPS version.
Copyright (C) 1995-2020 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
<https://www.gnu.org/licenses/>. */
#ifndef _BITS_SIGNUM_H
#define _BITS_SIGNUM_H 1
#ifndef _SIGNAL_H
#error "Never include <bits/signum.h> directly; use <signal.h> instead."
#endif
#include <bits/signum-generic.h>
/* Adjustments and additions to the signal number constants for
Linux/MIPS. */
#define SIGEMT 7 /* Emulator trap. */
#define SIGPWR 19 /* Power failure imminent. */
#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
#undef __SIGRTMAX
#define __SIGRTMAX 127
#endif /* <signal.h> included. */