118334Speter#! /bin/sh 218334Speter# Deduce values of standard ANSI and POSIX types (e.g. size_t, pid_t). 318334Speter# Emits macros definitions for these, and some other types. 418334Speter# Intended to be used to massage the sys-protos.h file. 518334Speter# Expects one arg, which is the GCC source directory. 618334Speter 718334SpeterCC=${CC-"./xgcc -B$1/"} 818334SpeterCPP=${CPP-`echo ${CC} -E -I"$1/"`} 918334SpeterSED=sed 1018334Speter 1118334Speter# Generate definitions for the standard types (such as mode_t) 1218334Speter# compatible with those in the standard C header files. 1318334Speter# It works by a dummy program through the C pre-processor, and then 1418334Speter# using sed to search for typedefs in the output. 1518334Speter 1618334Spetercat >st-dummy.c <<!EOF! 1718334Speter#include <sys/types.h> 1818334Speter#include <stddef.h> 1918334Speter#include <stdarg.h> 2018334Speter#include <stdio.h> 2118334Speter#include <time.h> 2218334Speter#include <signal.h> 2318334Speter#ifdef size_t 2418334Spetertypedef size_t Xsize_t; 2518334Speter#elif defined(__SIZE_TYPE__) 2618334Spetertypedef __SIZE_TYPE__ Xsize_t; 2718334Speter#endif 2818334Speter#ifdef va_list 2918334Spetertypedef va_list XXXva_list; 3018334Speter#endif 3118334Speter!EOF! 3218334Speter 3318334Speterif ${CPP} st-dummy.c >TMP ; then true 3418334Speterelse 3518334Speter echo "scan-types: could not invoke ${CPP} on st-dummy.c" 1>&2 ; exit 1 3618334Speterfi 3718334Spetertr ' ' ' ' <TMP >st-dummy.out 3818334Speter 3918334Speterfor 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 4018334Speter IMPORTED=`eval 'echo $'"$TYPE"` 4118334Speter if [ -n "${IMPORTED}" ] ; then 4218334Speter eval "$TYPE='$IMPORTED" 4318334Speter else 4418334Speter # Search st-dummy.out for a typedef for $TYPE, and write it out 4518334Speter # to TMP in #define syntax. 4618334Speter rm -f TMP 4718334Speter ${SED} -n -e "s|.*typedef *\(.*\) X*$TYPE *;.*|\1|w TMP" <st-dummy.out>/dev/null 4818334Speter # Now select the first definition. 4918334Speter if [ -s TMP ]; then 5018334Speter # VALUE is now the typedef'd definition of $TYPE. 5118334Speter eval "VALUE='`${SED} -e 's| *$||' -e '2,$d' <TMP`'" 5218334Speter # Unless VALUE contains a blank, look for a typedef for it 5318334Speter # in turn (this could be a loop, but that would be over-kill). 5490075Sobrien # Ensure $VALUE is double quoted to protect cases where it 5590075Sobrien # contains an asterisk and would cause filename expansion. 5690075Sobrien # E.g. when va_list is "char *". 5790075Sobrien if echo "$VALUE" | grep " " >/dev/null ; then true 5818334Speter else 5918334Speter rm -f TMP 6018334Speter ${SED} -n -e "s|.*typedef[ ][ ]*\(.*[^a-zA-Z0-9_]\)${VALUE}[ ]*;.*|\1|w TMP" <st-dummy.out>/dev/null 6118334Speter if [ -s TMP ]; then 6218334Speter eval "VALUE='`${SED} -e '2,$d' -e 's|[ ]*$||' <TMP`'" 6318334Speter fi 6418334Speter fi 6518334Speter eval "$TYPE='$VALUE'" 6618334Speter fi 6718334Speter fi 6818334Speterdone 6918334Speter 7018334Spetercat <<!EOF! 7118334Speter#define ${macro_prefix}clock_t ${clock_t-int /* default */} 7218334Speter#define ${macro_prefix}dev_t ${dev_t-int /* default */} 7318334Speter#define ${macro_prefix}fpos_t ${fpos_t-long /* default */} 7418334Speter#define ${macro_prefix}gid_t ${gid_t-int /* default */} 7518334Speter#define ${macro_prefix}ino_t ${ino_t-int /* default */} 7618334Speter#define ${macro_prefix}mode_t ${mode_t-int /* default */} 7718334Speter#define ${macro_prefix}nlink_t ${nlink_t-int /* default */} 7818334Speter#define ${macro_prefix}off_t ${off_t-long /* default */} 7918334Speter#define ${macro_prefix}pid_t ${pid_t-int /* default */} 8018334Speter#define ${macro_prefix}ptrdiff_t __PTRDIFF_TYPE__ 8118334Speter#define ${macro_prefix}size_t __SIZE_TYPE__ 8218334Speter#define ${macro_prefix}time_t ${time_t-int /* default */} 8318334Speter#define ${macro_prefix}uid_t ${uid_t-int /* default */} 8418334Speter#define ${macro_prefix}wchar_t __WCHAR_TYPE__ 8518334Speter#define ${macro_prefix}int32_t ${int32_t-int /* default */} 8618334Speter#define ${macro_prefix}uint32_t ${uint32_t-unsigned int /* default */} 8718334Speter!EOF! 8818334Speter 8918334Speter# (wait_arg_t*) should be (int*), according to Posix, but 9018334Speter# BSD traditionally used (union wait*). Use (void*) to allow either usage. 9118334Speterecho "#define ${macro_prefix}wait_arg_t void" 9218334Speter 9318334Speter# ssize_t is the signed version of size_t 9418334Speterif [ -n "${ssize_t}" ] ; then 9518334Speter echo "#define ${macro_prefix}ssize_t ${ssize_t}" 9618334Speterelif [ -z "${size_t}" ] ; then 9718334Speter echo "#define ${macro_prefix}ssize_t long" 9818334Speterelse 9918334Speter # Remove "unsigned" from ${size_t} to get ${ssize_t}. 10018334Speter tmp="`echo ${size_t} | ${SED} -e 's|unsigned||g' -e 's| | |g'`" 10118334Speter if [ -z "$tmp" ] ; then 10218334Speter tmp=int 10318334Speter else 10418334Speter # check $tmp doesn't conflict with <unistd.h> 10518334Speter echo "#include <unistd.h> 10618334Speter extern $tmp read();" >st-dummy.c 10718334Speter ${CC} -c st-dummy.c >/dev/null 2>&1 || tmp=int 10818334Speter fi 10918334Speter echo "#define ${macro_prefix}ssize_t $tmp /* default */" 11018334Speterfi 11118334Speter 11218334Speter# va_list can cause problems (e.g. some systems have va_list as a struct). 11318334Speter# Check to see if ${va_list-char*} really is compatible with stdarg.h. 11418334Spetercat >st-dummy.c <<!EOF! 11518334Speter#define X_va_list ${va_list-char* /* default */} 11618334Speterextern long foo(X_va_list ap); /* Check that X_va_list compiles on its own */ 11718334Speter#include <stdarg.h> 11818334Speterlong foo(X_va_list ap) { return va_arg(ap, long); } 11918334Speterlong bar(int i, ...) 12018334Speter{ va_list ap; long j; va_start(ap, i); j = foo(ap); va_end(ap); return j; } 12118334Speter!EOF! 12218334Speterif ${CC} -c st-dummy.c >/dev/null 2>&1 ; then 12318334Speter # Ok: We have something that works. 12418334Speter echo "#define ${macro_prefix}va_list ${va_list-char* /* default */}" 12518334Speterelse 12618334Speter # No, it breaks. Indicate that <stdarg.h> must be included. 12718334Speter echo "#define ${macro_prefix}NEED_STDARG_H 12818334Speter#define ${macro_prefix}va_list va_list" 12918334Speterfi 13018334Speter 13118334Speter# stuff needed for curses.h 13218334Speter 13318334Speter# This isn't correct for SVR4 (for example). However, we only 13418334Speter# use this when adding a missing prototype, so it shouldn't matter. 13518334Speterecho "#define chtype int" 13618334Speter# sys-protos.h uses non-standard names (due to the CHTYPE argument problem). 13718334Speterecho "#define box32 box" 13818334Speterecho "#define initscr32 initscr" 13918334Speterecho "#define w32addch waddch" 14018334Speterecho "#define w32insch winsch" 14118334Speter 14218334Speterrm -f st-dummy.c st-dummy.o TMP st-dummy.out 143