Commit | Line | Data |
---|---|---|
c906108c SS |
1 | /* Host-dependent code for GDB, for NYU Ultra3 running Sym1 OS. |
2 | Copyright (C) 1988, 1989, 1991, 1992 Free Software Foundation, Inc. | |
3 | Contributed by David Wood (wood@nyu.edu) at New York University. | |
4 | ||
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b JM |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
21 | |
22 | #define DEBUG | |
23 | #include "defs.h" | |
24 | #include "frame.h" | |
25 | #include "inferior.h" | |
26 | #include "symtab.h" | |
27 | #include "value.h" | |
28 | ||
29 | #include <sys/types.h> | |
30 | #include <sys/param.h> | |
31 | #include <signal.h> | |
32 | #include <sys/ioctl.h> | |
c5aa993b | 33 | #include <fcntl.h> |
c906108c SS |
34 | |
35 | #include "gdbcore.h" | |
36 | ||
37 | #include <sys/file.h> | |
38 | #include "gdb_stat.h" | |
39 | ||
40 | /* Assorted operating system circumventions */ | |
41 | ||
42 | #ifdef SYM1 | |
43 | ||
44 | /* FIXME: Kludge this for now. It really should be system call. */ | |
45 | int | |
fba45db2 | 46 | getpagesize (void) |
c5aa993b JM |
47 | { |
48 | return (8192); | |
49 | } | |
c906108c SS |
50 | |
51 | /* FIXME: Fake out the fcntl() call, which we don't have. */ | |
fba45db2 | 52 | fcntl (int fd, int cmd, int arg) |
c906108c SS |
53 | { |
54 | ||
c5aa993b JM |
55 | switch (cmd) |
56 | { | |
57 | case F_GETFL: | |
58 | return (O_RDONLY); | |
59 | break; | |
60 | default: | |
61 | printf_unfiltered ("Ultra3's fcntl() failing, cmd = %d.\n", cmd); | |
62 | return (-1); | |
63 | } | |
c906108c SS |
64 | } |
65 | ||
66 | ||
67 | /* | |
68 | * 4.2 Signal support, requires linking with libjobs. | |
69 | */ | |
c5aa993b | 70 | static int _SigMask; |
c906108c SS |
71 | #define sigbit(s) (1L << ((s)-1)) |
72 | ||
fba45db2 | 73 | init_SigMask (void) |
c906108c | 74 | { |
c5aa993b JM |
75 | /* Taken from the sym1 kernel in machdep.c:startup() */ |
76 | _SigMask = sigbit (SIGTSTP) | sigbit (SIGTTOU) | sigbit (SIGTTIN) | | |
77 | sigbit (SIGCHLD) | sigbit (SIGTINT); | |
c906108c SS |
78 | } |
79 | ||
fba45db2 | 80 | sigmask (int signo) |
c906108c | 81 | { |
c5aa993b | 82 | return (1 << (signo - 1)); |
c906108c SS |
83 | } |
84 | ||
fba45db2 | 85 | sigsetmask (unsigned int sigmask) |
c906108c | 86 | { |
c5aa993b JM |
87 | int i, mask = 1; |
88 | int lastmask = _SigMask; | |
89 | ||
90 | for (i = 0; i < NSIG; i++) | |
91 | { | |
92 | if (sigmask & mask) | |
93 | { | |
94 | if (!(_SigMask & mask)) | |
95 | { | |
96 | sighold (i + 1); | |
97 | _SigMask |= mask; | |
98 | } | |
99 | } | |
100 | else if (_SigMask & mask) | |
101 | { | |
102 | sigrelse (i + 1); | |
103 | _SigMask &= ~mask; | |
c906108c | 104 | } |
c5aa993b JM |
105 | mask <<= 1; |
106 | } | |
107 | return (lastmask); | |
c906108c SS |
108 | } |
109 | ||
fba45db2 | 110 | sigblock (unsigned int sigmask) |
c906108c | 111 | { |
c5aa993b JM |
112 | int i, mask = 1; |
113 | int lastmask = _SigMask; | |
114 | ||
115 | for (i = 0; i < NSIG; i++) | |
116 | { | |
117 | if ((sigmask & mask) && !(_SigMask & mask)) | |
118 | { | |
119 | sighold (i + 1); | |
120 | _SigMask |= mask; | |
c906108c | 121 | } |
c5aa993b JM |
122 | mask <<= 1; |
123 | } | |
124 | return (lastmask); | |
c906108c SS |
125 | } |
126 | #endif /* SYM1 */ | |
127 | ||
128 | ||
129 | /* Initialization code for this module. */ | |
130 | ||
131 | void | |
fba45db2 | 132 | _initialize_ultra3 (void) |
c906108c SS |
133 | { |
134 | #ifdef SYM1 | |
c5aa993b | 135 | init_SigMask (); |
c906108c SS |
136 | #endif |
137 | } |