1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
|
dnl Copyright (C) 1997-2023 Free Software Foundation, Inc.
dnl
dnl This program is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 3 of the License, or
dnl (at your option) any later version.
dnl
dnl This program is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
dnl GNU General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
dnl
dnl Check for various platform settings.
AC_DEFUN([SIM_AC_PLATFORM],
[dnl
dnl Check for common headers.
dnl NB: You can assume C11 headers exist.
dnl NB: We use gnulib from ../gnulib/, so we don't probe headers it provides.
AC_CHECK_HEADERS_ONCE(m4_flatten([
dlfcn.h
fcntl.h
fpu_control.h
termios.h
utime.h
linux/if_tun.h
linux/mii.h
linux/types.h
net/if.h
netinet/in.h
netinet/tcp.h
sys/ioctl.h
sys/mman.h
sys/mount.h
sys/param.h
sys/resource.h
sys/socket.h
sys/statfs.h
sys/termio.h
sys/termios.h
sys/types.h
sys/vfs.h
]))
AC_HEADER_DIRENT
dnl NB: We use gnulib from ../gnulib/, so we don't probe functions it provides.
AC_CHECK_FUNCS_ONCE(m4_flatten([
__setfpucw
access
aint
anint
cfgetispeed
cfgetospeed
cfsetispeed
cfsetospeed
chdir
chmod
dup
dup2
execv
execve
fcntl
fork
fstat
fstatfs
ftruncate
getdirentries
getegid
geteuid
getgid
getpid
getppid
getrusage
gettimeofday
getuid
ioctl
kill
link
lseek
lstat
mkdir
mmap
munmap
pipe
posix_fallocate
pread
rmdir
setregid
setreuid
setgid
setuid
sigaction
sigprocmask
sqrt
stat
strsignal
symlink
tcdrain
tcflow
tcflush
tcgetattr
tcgetpgrp
tcsendbreak
tcsetattr
tcsetpgrp
time
truncate
umask
unlink
utime
]))
AC_STRUCT_ST_BLKSIZE
AC_STRUCT_ST_BLOCKS
AC_STRUCT_ST_RDEV
AC_STRUCT_TIMEZONE
AC_CHECK_MEMBERS([[struct stat.st_dev], [struct stat.st_ino],
[struct stat.st_mode], [struct stat.st_nlink], [struct stat.st_uid],
[struct stat.st_gid], [struct stat.st_rdev], [struct stat.st_size],
[struct stat.st_blksize], [struct stat.st_blocks], [struct stat.st_atime],
[struct stat.st_mtime], [struct stat.st_ctime]], [], [],
[[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#include <sys/stat.h>]])
AC_CHECK_TYPES([__int128])
AC_CHECK_TYPES(socklen_t, [], [],
[#include <sys/types.h>
#include <sys/socket.h>
])
dnl Some System V related checks.
AC_CACHE_CHECK([if union semun defined],
[sim_cv_has_union_semun],
[AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/sem.h>], [
union semun arg;
], [sim_cv_has_union_semun="yes"], [sim_cv_has_union_semun="no"])])
AS_IF([test x"$sim_cv_has_union_semun" = x"yes"], [dnl
AC_DEFINE(HAVE_UNION_SEMUN, 1,
[Define if union semun is defined in <sys/sem.h>])
])
AC_CACHE_CHECK([whether System V semaphores are supported],
[sim_cv_sysv_sem],
[AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/sem.h>
#ifndef HAVE_UNION_SEMUN
union semun {
int val;
struct semid_ds *buf;
ushort *array;
};
#endif], [
union semun arg;
int id = semget(IPC_PRIVATE, 1, IPC_CREAT|0400);
if (id == -1)
return 1;
arg.val = 0; /* avoid implicit type cast to union */
if (semctl(id, 0, IPC_RMID, arg) == -1)
return 1;
], [sim_cv_sysv_sem="yes"], [sim_cv_sysv_sem="no"])])
AS_IF([test x"$sim_cv_sysv_sem" = x"yes"], [dnl
AC_DEFINE(HAVE_SYSV_SEM, 1, [Define if System V semaphores are supported])
])
AC_CACHE_CHECK([whether System V shared memory is supported],
[sim_cv_sysv_shm],
[AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/shm.h>], [
int id = shmget(IPC_PRIVATE, 1, IPC_CREAT|0400);
if (id == -1)
return 1;
if (shmctl(id, IPC_RMID, 0) == -1)
return 1;
], [sim_cv_sysv_shm="yes"], [sim_cv_sysv_shm="no"])])
AS_IF([test x"$sim_cv_sysv_shm" = x"yes"], [dnl
AC_DEFINE(HAVE_SYSV_SHM, 1, [Define if System V shared memory is supported])
])
dnl Types used by common code
AC_TYPE_GETGROUPS
AC_TYPE_MODE_T
AC_TYPE_OFF_T
AC_TYPE_PID_T
AC_TYPE_SIGNAL
AC_TYPE_SIZE_T
AC_TYPE_UID_T
LT_INIT
dnl Libraries.
AC_SEARCH_LIBS([bind], [socket])
AC_SEARCH_LIBS([gethostbyname], [nsl])
AC_SEARCH_LIBS([fabs], [m])
AC_SEARCH_LIBS([log2], [m])
AC_SEARCH_LIBS([dlopen], [dl])
if test "${ac_cv_search_dlopen}" = "none required" || test "${ac_cv_lib_dl_dlopen}" = "yes"; then
PKG_CHECK_MODULES(SDL, sdl2, [dnl
SDL_CFLAGS="${SDL_CFLAGS} -DHAVE_SDL=2"
], [
PKG_CHECK_MODULES(SDL, sdl, [dnl
SDL_CFLAGS="${SDL_CFLAGS} -DHAVE_SDL=1"
], [:])
])
dnl If we use SDL, we need dlopen support.
AS_IF([test -n "$SDL_CFLAGS"], [dnl
AS_IF([test "$ac_cv_search_dlopen" = no], [dnl
AC_MSG_WARN([SDL support requires dlopen support])
])
])
else
SDL_CFLAGS=
fi
dnl We dlopen the libs at runtime, so never pass down SDL_LIBS.
SDL_LIBS=
AC_SUBST(SDL_CFLAGS)
dnl In the Cygwin environment, we need some additional flags.
AC_CACHE_CHECK([for cygwin], sim_cv_os_cygwin,
[AC_EGREP_CPP(lose, [
#ifdef __CYGWIN__
lose
#endif],[sim_cv_os_cygwin=yes],[sim_cv_os_cygwin=no])])
dnl Keep in sync with gdb's configure.ac list.
AC_SEARCH_LIBS(tgetent, [termcap tinfo curses ncurses],
[TERMCAP_LIB=$ac_cv_search_tgetent], [TERMCAP_LIB=""])
if test x$sim_cv_os_cygwin = xyes; then
TERMCAP_LIB="${TERMCAP_LIB} -luser32"
fi
AC_SUBST(TERMCAP_LIB)
dnl We prefer the in-tree readline. Top-level dependencies make sure
dnl src/readline (if it's there) is configured before src/sim.
if test -r ../readline/Makefile; then
READLINE_LIB=../readline/readline/libreadline.a
READLINE_CFLAGS='-I$(READLINE_SRC)/..'
else
AC_CHECK_LIB(readline, readline, READLINE_LIB=-lreadline,
AC_ERROR([the required "readline" library is missing]), $TERMCAP_LIB)
READLINE_CFLAGS=
fi
AC_SUBST(READLINE_LIB)
AC_SUBST(READLINE_CFLAGS)
dnl Determine whether we have a known getopt prototype in unistd.h
dnl to make sure that we have correct getopt declaration on
dnl include/getopt.h. The purpose of this is to sync with other Binutils
dnl components and this logic is copied from ld/configure.ac.
AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
AC_CACHE_VAL(sim_cv_decl_getopt_unistd_h,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
sim_cv_decl_getopt_unistd_h=yes, sim_cv_decl_getopt_unistd_h=no)])
AC_MSG_RESULT($sim_cv_decl_getopt_unistd_h)
if test $sim_cv_decl_getopt_unistd_h = yes; then
AC_DEFINE([HAVE_DECL_GETOPT], 1,
[Is the prototype for getopt in <unistd.h> in the expected format?])
fi
])
|
