mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-30 21:44:19 +08:00
120 lines
3.2 KiB
C
120 lines
3.2 KiB
C
/* Standard wait macros.
|
|
Copyright (C) 2000, 2007, 2008, 2009 Free Software Foundation, Inc.
|
|
|
|
This file is part of GDB.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef GDB_WAIT_H
|
|
#define GDB_WAIT_H
|
|
|
|
#ifdef HAVE_SYS_WAIT_H
|
|
#include <sys/wait.h> /* POSIX */
|
|
#else
|
|
#ifdef HAVE_WAIT_H
|
|
#include <wait.h> /* legacy */
|
|
#endif
|
|
#endif
|
|
|
|
/* Define how to access the int that the wait system call stores.
|
|
This has been compatible in all Unix systems since time immemorial,
|
|
but various well-meaning people have defined various different
|
|
words for the same old bits in the same old int (sometimes claimed
|
|
to be a struct). We just know it's an int and we use these macros
|
|
to access the bits. */
|
|
|
|
/* The following macros are defined equivalently to their definitions
|
|
in POSIX.1. We fail to define WNOHANG and WUNTRACED, which POSIX.1
|
|
<sys/wait.h> defines, since our code does not use waitpid() (but
|
|
NOTE exception for GNU/Linux below). We also fail to declare
|
|
wait() and waitpid(). */
|
|
|
|
#ifndef WIFEXITED
|
|
#define WIFEXITED(w) (((w)&0377) == 0)
|
|
#endif
|
|
|
|
#ifndef WIFSIGNALED
|
|
#define WIFSIGNALED(w) (((w)&0377) != 0177 && ((w)&~0377) == 0)
|
|
#endif
|
|
|
|
#ifndef WIFSTOPPED
|
|
#ifdef IBM6000
|
|
|
|
/* Unfortunately, the above comment (about being compatible in all Unix
|
|
systems) is not quite correct for AIX, sigh. And AIX 3.2 can generate
|
|
status words like 0x57c (sigtrap received after load), and gdb would
|
|
choke on it. */
|
|
|
|
#define WIFSTOPPED(w) ((w)&0x40)
|
|
|
|
#else
|
|
#define WIFSTOPPED(w) (((w)&0377) == 0177)
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef WEXITSTATUS
|
|
#define WEXITSTATUS(w) (((w) >> 8) & 0377) /* same as WRETCODE */
|
|
#endif
|
|
|
|
#ifndef WTERMSIG
|
|
#define WTERMSIG(w) ((w) & 0177)
|
|
#endif
|
|
|
|
#ifndef WSTOPSIG
|
|
#define WSTOPSIG WEXITSTATUS
|
|
#endif
|
|
|
|
/* These are not defined in POSIX, but are used by our programs. */
|
|
|
|
#define WAITTYPE int
|
|
|
|
#ifndef WCOREDUMP
|
|
#define WCOREDUMP(w) (((w)&0200) != 0)
|
|
#endif
|
|
|
|
#ifndef WSETEXIT
|
|
# ifdef W_EXITCODE
|
|
#define WSETEXIT(w,status) ((w) = W_EXITCODE(status,0))
|
|
# else
|
|
#define WSETEXIT(w,status) ((w) = (0 | ((status) << 8)))
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef WSETSTOP
|
|
# ifdef W_STOPCODE
|
|
#define WSETSTOP(w,sig) ((w) = W_STOPCODE(sig))
|
|
# else
|
|
#define WSETSTOP(w,sig) ((w) = (0177 | ((sig) << 8)))
|
|
# endif
|
|
#endif
|
|
|
|
/* For native GNU/Linux we may use waitpid and the __WCLONE option.
|
|
<GRIPE> It is of course dangerous not to use the REAL header file...
|
|
</GRIPE>. */
|
|
|
|
/* Bits in the third argument to `waitpid'. */
|
|
#ifndef WNOHANG
|
|
#define WNOHANG 1 /* Don't block waiting. */
|
|
#endif
|
|
|
|
#ifndef WUNTRACED
|
|
#define WUNTRACED 2 /* Report status of stopped children. */
|
|
#endif
|
|
|
|
#ifndef __WCLONE
|
|
#define __WCLONE 0x80000000 /* Wait for cloned process. */
|
|
#endif
|
|
|
|
#endif
|