|
0
|
1 #! /bin/sh
|
|
|
2 # Deduce values of standard ANSI and POSIX types (e.g. size_t, pid_t).
|
|
|
3 # Emits macros definitions for these, and some other types.
|
|
|
4 # Intended to be used to massage the sys-protos.h file.
|
|
|
5 # Expects one arg, which is the GCC source directory.
|
|
|
6
|
|
|
7 CC=${CC-"./xgcc -B$1/"}
|
|
|
8 CPP=${CPP-`echo ${CC} -E -I"$1/"`}
|
|
|
9 SED=sed
|
|
|
10
|
|
|
11 # Generate definitions for the standard types (such as mode_t)
|
|
|
12 # compatible with those in the standard C header files.
|
|
|
13 # It works by a dummy program through the C pre-processor, and then
|
|
|
14 # using sed to search for typedefs in the output.
|
|
|
15
|
|
|
16 cat >st-dummy.c <<!EOF!
|
|
|
17 #include <sys/types.h>
|
|
|
18 #include <stddef.h>
|
|
|
19 #include <stdarg.h>
|
|
|
20 #include <stdio.h>
|
|
|
21 #include <time.h>
|
|
|
22 #include <signal.h>
|
|
|
23 #ifdef size_t
|
|
|
24 typedef size_t Xsize_t;
|
|
|
25 #elif defined(__SIZE_TYPE__)
|
|
|
26 typedef __SIZE_TYPE__ Xsize_t;
|
|
|
27 #endif
|
|
|
28 #ifdef va_list
|
|
|
29 typedef va_list XXXva_list;
|
|
|
30 #endif
|
|
|
31 !EOF!
|
|
|
32
|
|
|
33 if ${CPP} st-dummy.c >TMP ; then true
|
|
|
34 else
|
|
|
35 echo "scan-types: could not invoke ${CPP} on st-dummy.c" 1>&2 ; exit 1
|
|
|
36 fi
|
|
|
37 tr ' ' ' ' <TMP >st-dummy.out
|
|
|
38
|
|
|
39 for TYPE in dev_t clock_t fpos_t gid_t ino_t mode_t nlink_t off_t pid_t size_t ssize_t time_t uid_t va_list int32_t uint_32_t ; do
|
|
|
40 IMPORTED=`eval 'echo $'"$TYPE"`
|
|
|
41 if [ -n "${IMPORTED}" ] ; then
|
|
|
42 eval "$TYPE='$IMPORTED"
|
|
|
43 else
|
|
|
44 # Search st-dummy.out for a typedef for $TYPE, and write it out
|
|
|
45 # to TMP in #define syntax.
|
|
|
46 rm -f TMP
|
|
|
47 ${SED} -n -e "s|.*typedef *\(.*\) X*$TYPE *;.*|\1|w TMP" <st-dummy.out>/dev/null
|
|
|
48 # Now select the first definition.
|
|
|
49 if [ -s TMP ]; then
|
|
|
50 # VALUE is now the typedef'd definition of $TYPE.
|
|
|
51 eval "VALUE='`${SED} -e 's| *$||' -e '2,$d' <TMP`'"
|
|
|
52 # Unless VALUE contains a blank, look for a typedef for it
|
|
|
53 # in turn (this could be a loop, but that would be over-kill).
|
|
|
54 # Ensure $VALUE is double quoted to protect cases where it
|
|
|
55 # contains an asterisk and would cause filename expansion.
|
|
|
56 # E.g. when va_list is "char *".
|
|
|
57 if echo "$VALUE" | grep " " >/dev/null ; then true
|
|
|
58 else
|
|
|
59 rm -f TMP
|
|
|
60 ${SED} -n -e "s|.*typedef[ ][ ]*\(.*[^a-zA-Z0-9_]\)${VALUE}[ ]*;.*|\1|w TMP" <st-dummy.out>/dev/null
|
|
|
61 if [ -s TMP ]; then
|
|
|
62 eval "VALUE='`${SED} -e '2,$d' -e 's|[ ]*$||' <TMP`'"
|
|
|
63 fi
|
|
|
64 fi
|
|
|
65 eval "$TYPE='$VALUE'"
|
|
|
66 fi
|
|
|
67 fi
|
|
|
68 done
|
|
|
69
|
|
|
70 cat <<!EOF!
|
|
|
71 #define ${macro_prefix}clock_t ${clock_t-int /* default */}
|
|
|
72 #define ${macro_prefix}dev_t ${dev_t-int /* default */}
|
|
|
73 #define ${macro_prefix}fpos_t ${fpos_t-long /* default */}
|
|
|
74 #define ${macro_prefix}gid_t ${gid_t-int /* default */}
|
|
|
75 #define ${macro_prefix}ino_t ${ino_t-int /* default */}
|
|
|
76 #define ${macro_prefix}mode_t ${mode_t-int /* default */}
|
|
|
77 #define ${macro_prefix}nlink_t ${nlink_t-int /* default */}
|
|
|
78 #define ${macro_prefix}off_t ${off_t-long /* default */}
|
|
|
79 #define ${macro_prefix}pid_t ${pid_t-int /* default */}
|
|
|
80 #define ${macro_prefix}ptrdiff_t __PTRDIFF_TYPE__
|
|
|
81 #define ${macro_prefix}size_t __SIZE_TYPE__
|
|
|
82 #define ${macro_prefix}time_t ${time_t-int /* default */}
|
|
|
83 #define ${macro_prefix}uid_t ${uid_t-int /* default */}
|
|
|
84 #define ${macro_prefix}wchar_t __WCHAR_TYPE__
|
|
|
85 #define ${macro_prefix}int32_t ${int32_t-int /* default */}
|
|
|
86 #define ${macro_prefix}uint32_t ${uint32_t-unsigned int /* default */}
|
|
|
87 !EOF!
|
|
|
88
|
|
|
89 # (wait_arg_t*) should be (int*), according to Posix, but
|
|
|
90 # BSD traditionally used (union wait*). Use (void*) to allow either usage.
|
|
|
91 echo "#define ${macro_prefix}wait_arg_t void"
|
|
|
92
|
|
|
93 # ssize_t is the signed version of size_t
|
|
|
94 if [ -n "${ssize_t}" ] ; then
|
|
|
95 echo "#define ${macro_prefix}ssize_t ${ssize_t}"
|
|
|
96 elif [ -z "${size_t}" ] ; then
|
|
|
97 echo "#define ${macro_prefix}ssize_t long"
|
|
|
98 else
|
|
|
99 # Remove "unsigned" from ${size_t} to get ${ssize_t}.
|
|
|
100 tmp="`echo ${size_t} | ${SED} -e 's|unsigned||g' -e 's| | |g'`"
|
|
|
101 if [ -z "$tmp" ] ; then
|
|
|
102 tmp=int
|
|
|
103 else
|
|
|
104 # check $tmp doesn't conflict with <unistd.h>
|
|
|
105 echo "#include <unistd.h>
|
|
|
106 extern $tmp read();" >st-dummy.c
|
|
|
107 ${CC} -c st-dummy.c >/dev/null 2>&1 || tmp=int
|
|
|
108 fi
|
|
|
109 echo "#define ${macro_prefix}ssize_t $tmp /* default */"
|
|
|
110 fi
|
|
|
111
|
|
|
112 # va_list can cause problems (e.g. some systems have va_list as a struct).
|
|
|
113 # Check to see if ${va_list-char*} really is compatible with stdarg.h.
|
|
|
114 cat >st-dummy.c <<!EOF!
|
|
|
115 #define X_va_list ${va_list-char* /* default */}
|
|
|
116 extern long foo(X_va_list ap); /* Check that X_va_list compiles on its own */
|
|
|
117 #include <stdarg.h>
|
|
|
118 long foo(X_va_list ap) { return va_arg(ap, long); }
|
|
|
119 long bar(int i, ...)
|
|
|
120 { va_list ap; long j; va_start(ap, i); j = foo(ap); va_end(ap); return j; }
|
|
|
121 !EOF!
|
|
|
122 if ${CC} -c st-dummy.c >/dev/null 2>&1 ; then
|
|
|
123 # Ok: We have something that works.
|
|
|
124 echo "#define ${macro_prefix}va_list ${va_list-char* /* default */}"
|
|
|
125 else
|
|
|
126 # No, it breaks. Indicate that <stdarg.h> must be included.
|
|
|
127 echo "#define ${macro_prefix}NEED_STDARG_H
|
|
|
128 #define ${macro_prefix}va_list va_list"
|
|
|
129 fi
|
|
|
130
|
|
|
131 # stuff needed for curses.h
|
|
|
132
|
|
|
133 # This isn't correct for SVR4 (for example). However, we only
|
|
|
134 # use this when adding a missing prototype, so it shouldn't matter.
|
|
|
135 echo "#define chtype int"
|
|
|
136 # sys-protos.h uses non-standard names (due to the CHTYPE argument problem).
|
|
|
137 echo "#define box32 box"
|
|
|
138 echo "#define initscr32 initscr"
|
|
|
139 echo "#define w32addch waddch"
|
|
|
140 echo "#define w32insch winsch"
|
|
|
141
|
|
|
142 rm -f st-dummy.c st-dummy.o TMP st-dummy.out
|
