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[/] [or1k/] [tags/] [start/] [gdb-5.0/] [gdb/] [ultra3-xdep.c] - Rev 1780
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/* Host-dependent code for GDB, for NYU Ultra3 running Sym1 OS. Copyright (C) 1988, 1989, 1991, 1992 Free Software Foundation, Inc. Contributed by David Wood (wood@nyu.edu) at New York University. 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 2 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, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #define DEBUG #include "defs.h" #include "frame.h" #include "inferior.h" #include "symtab.h" #include "value.h" #include <sys/types.h> #include <sys/param.h> #include <signal.h> #include <sys/ioctl.h> #include <fcntl.h> #include "gdbcore.h" #include <sys/file.h> #include "gdb_stat.h" /* Assorted operating system circumventions */ #ifdef SYM1 /* FIXME: Kludge this for now. It really should be system call. */ int getpagesize () { return (8192); } /* FIXME: Fake out the fcntl() call, which we don't have. */ fcntl (fd, cmd, arg) int fd, cmd, arg; { switch (cmd) { case F_GETFL: return (O_RDONLY); break; default: printf_unfiltered ("Ultra3's fcntl() failing, cmd = %d.\n", cmd); return (-1); } } /* * 4.2 Signal support, requires linking with libjobs. */ static int _SigMask; #define sigbit(s) (1L << ((s)-1)) init_SigMask () { /* Taken from the sym1 kernel in machdep.c:startup() */ _SigMask = sigbit (SIGTSTP) | sigbit (SIGTTOU) | sigbit (SIGTTIN) | sigbit (SIGCHLD) | sigbit (SIGTINT); } sigmask (signo) int signo; { return (1 << (signo - 1)); } sigsetmask (sigmask) unsigned int sigmask; { int i, mask = 1; int lastmask = _SigMask; for (i = 0; i < NSIG; i++) { if (sigmask & mask) { if (!(_SigMask & mask)) { sighold (i + 1); _SigMask |= mask; } } else if (_SigMask & mask) { sigrelse (i + 1); _SigMask &= ~mask; } mask <<= 1; } return (lastmask); } sigblock (sigmask) unsigned int sigmask; { int i, mask = 1; int lastmask = _SigMask; for (i = 0; i < NSIG; i++) { if ((sigmask & mask) && !(_SigMask & mask)) { sighold (i + 1); _SigMask |= mask; } mask <<= 1; } return (lastmask); } #endif /* SYM1 */ /* Initialization code for this module. */ void _initialize_ultra3 () { #ifdef SYM1 init_SigMask (); #endif }
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