From 829b604ea2d717a31b29e4e6007c3303649d720b Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Mon, 2 Jan 2006 18:55:51 +0000 Subject: [PATCH] 2006-02-01 Paolo Bonzini PR target/25259 * stdint.m4: New. --- config/ChangeLog | 10 ++ config/stdint.m4 | 486 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 496 insertions(+) create mode 100644 config/stdint.m4 diff --git a/config/ChangeLog b/config/ChangeLog index 8952f5169..b3df9f398 100644 --- a/config/ChangeLog +++ b/config/ChangeLog @@ -1,3 +1,13 @@ +2006-02-01 Paolo Bonzini + + PR target/25259 + * stdint.m4: New. + +2005-12-20 Paolo Bonzini + + Revert Ada-related part of the previous change. + + * mt-ppc-aix: Delete. 2005-12-20 Paolo Bonzini Revert Ada-related part of the previous change. diff --git a/config/stdint.m4 b/config/stdint.m4 new file mode 100644 index 000000000..21ef2ec43 --- /dev/null +++ b/config/stdint.m4 @@ -0,0 +1,486 @@ +dnl @synopsis GCC_HEADER_STDINT [( HEADER-TO-GENERATE [, HEADERS-TO-CHECK])] +dnl +dnl the "ISO C9X: 7.18 Integer types " section requires the +dnl existence of an include file that defines a set of +dnl typedefs, especially uint8_t,int32_t,uintptr_t. +dnl Many older installations will not provide this file, but some will +dnl have the very same definitions in . In other enviroments +dnl we can use the inet-types in which would define the +dnl typedefs int8_t and u_int8_t respectivly. +dnl +dnl This macros will create a local "_stdint.h" or the headerfile given as +dnl an argument. In many cases that file will pick the definition from a +dnl "#include " or "#include " statement, while +dnl in other environments it will provide the set of basic 'stdint's defined: +dnl int8_t,uint8_t,int16_t,uint16_t,int32_t,uint32_t,intptr_t,uintptr_t +dnl int_least32_t.. int_fast32_t.. intmax_t +dnl which may or may not rely on the definitions of other files. +dnl +dnl Sometimes the stdint.h or inttypes.h headers conflict with sys/types.h, +dnl so we test the headers together with sys/types.h and always include it +dnl into the generated header (to match the tests with the generated file). +dnl Hopefully this is not a big annoyance. +dnl +dnl If your installed header files require the stdint-types you will want to +dnl create an installable file mylib-int.h that all your other installable +dnl header may include. So, for a library package named "mylib", just use +dnl GCC_HEADER_STDINT(mylib-int.h) +dnl in configure.in and install that header file in Makefile.am along with +dnl the other headers (mylib.h). The mylib-specific headers can simply +dnl use "#include " to obtain the stdint-types. +dnl +dnl Remember, if the system already had a valid , the generated +dnl file will include it directly. No need for fuzzy HAVE_STDINT_H things... +dnl +dnl @author Guido Draheim , Paolo Bonzini + +AC_DEFUN([GCC_HEADER_STDINT], +[m4_define(_GCC_STDINT_H, m4_ifval($1, $1, _stdint.h)) + +inttype_headers=`echo inttypes.h sys/inttypes.h $2 | sed -e 's/,/ /g'` + +acx_cv_header_stdint=stddef.h +acx_cv_header_stdint_kind="(already complete)" +for i in stdint.h $inttype_headers; do + unset ac_cv_type_uintptr_t + unset ac_cv_type_uintmax_t + unset ac_cv_type_int_least32_t + unset ac_cv_type_int_fast32_t + unset ac_cv_type_uint64_t + _AS_ECHO_N([looking for a compliant stdint.h in $i, ]) + AC_CHECK_TYPE(uintmax_t,[acx_cv_header_stdint=$i],continue,[#include +#include <$i>]) + AC_CHECK_TYPE(uintptr_t,,[acx_cv_header_stdint_kind="(mostly complete)"], [#include +#include <$i>]) + AC_CHECK_TYPE(int_least32_t,,[acx_cv_header_stdint_kind="(mostly complete)"], [#include +#include <$i>]) + AC_CHECK_TYPE(int_fast32_t,,[acx_cv_header_stdint_kind="(mostly complete)"], [#include +#include <$i>]) + AC_CHECK_TYPE(uint64_t,,[acx_cv_header_stdint_kind="(lacks uint64_t)"], [#include +#include <$i>]) + break +done +if test "$acx_cv_header_stdint" = stddef.h; then + acx_cv_header_stdint_kind="(lacks uintptr_t)" + for i in stdint.h $inttype_headers; do + unset ac_cv_type_uint32_t + unset ac_cv_type_uint64_t + _AS_ECHO_N([looking for an incomplete stdint.h in $i, ]) + AC_CHECK_TYPE(uint32_t,[acx_cv_header_stdint=$i],continue,[#include +#include <$i>]) + AC_CHECK_TYPE(uint64_t,,[acx_cv_header_stdint_kind="(lacks uintptr_t and uint64_t)"], [#include +#include <$i>]) + break + done +fi +if test "$acx_cv_header_stdint" = stddef.h; then + acx_cv_header_stdint_kind="(u_intXX_t style)" + for i in sys/types.h $inttype_headers; do + unset ac_cv_type_u_int32_t + unset ac_cv_type_u_int64_t + _AS_ECHO_N([looking for u_intXX_t types in $i, ]) + AC_CHECK_TYPE(u_int32_t,[acx_cv_header_stdint=$i],continue,[#include +#include <$i>]) + AC_CHECK_TYPE(u_int64_t,,[acx_cv_header_stdint_kind="(u_intXX_t style, lacks u_int64_t)"], [#include +#include <$i>]) + break + done +fi +if test "$acx_cv_header_stdint" = stddef.h; then + acx_cv_header_stdint_kind="(using manual detection)" +fi + +test -z "$ac_cv_type_uintptr_t" && ac_cv_type_uintptr_t=no +test -z "$ac_cv_type_uint64_t" && ac_cv_type_uint64_t=no +test -z "$ac_cv_type_u_int64_t" && ac_cv_type_u_int64_t=no +test -z "$ac_cv_type_int_least32_t" && ac_cv_type_int_least32_t=no +test -z "$ac_cv_type_int_fast32_t" && ac_cv_type_int_fast32_t=no + +# ----------------- Summarize what we found so far + +AC_MSG_CHECKING([what to include in _GCC_STDINT_H]) + +case `AS_BASENAME(_GCC_STDINT_H)` in + stdint.h) AC_MSG_WARN([are you sure you want it there?]) ;; + inttypes.h) AC_MSG_WARN([are you sure you want it there?]) ;; + *) ;; +esac + +AC_MSG_RESULT($acx_cv_header_stdint $acx_cv_header_stdint_kind) + +# ----------------- done included file, check C basic types -------- + +# Lacking an uintptr_t? Test size of void * +case "$acx_cv_header_stdint:$ac_cv_type_uintptr_t" in + stddef.h:* | *:no) AC_CHECK_SIZEOF(void *) ;; +esac + +# Lacking an uint64_t? Test size of long +case "$acx_cv_header_stdint:$ac_cv_type_uint64_t:$ac_cv_type_u_int64_t" in + stddef.h:*:* | *:no:no) AC_CHECK_SIZEOF(long) ;; +esac + +if test $acx_cv_header_stdint = stddef.h; then + # Lacking a good header? Test size of everything and deduce all types. + AC_CHECK_SIZEOF(int) + AC_CHECK_SIZEOF(short) + AC_CHECK_SIZEOF(char) + + AC_MSG_CHECKING(for type equivalent to int8_t) + case "$ac_cv_sizeof_char" in + 1) acx_cv_type_int8_t=char ;; + *) AC_MSG_ERROR(no 8-bit type, please report a bug) + esac + AC_MSG_RESULT($acx_cv_type_int8_t) + + AC_MSG_CHECKING(for type equivalent to int16_t) + case "$ac_cv_sizeof_int:$ac_cv_sizeof_short" in + 2:*) acx_cv_type_int16_t=int ;; + *:2) acx_cv_type_int16_t=short ;; + *) AC_MSG_ERROR(no 16-bit type, please report a bug) + esac + AC_MSG_RESULT($acx_cv_type_int16_t) + + AC_MSG_CHECKING(for type equivalent to int32_t) + case "$ac_cv_sizeof_int:$ac_cv_sizeof_long" in + 4:*) acx_cv_type_int32_t=int ;; + *:4) acx_cv_type_int32_t=long ;; + *) AC_MSG_ERROR(no 32-bit type, please report a bug) + esac + AC_MSG_RESULT($acx_cv_type_int32_t) +fi + +# These tests are here to make the output prettier + +if test "$ac_cv_type_uint64_t" != yes && test "$ac_cv_type_u_int64_t" != yes; then + case "$ac_cv_sizeof_long" in + 8) acx_cv_type_int64_t=long ;; + esac + AC_MSG_CHECKING(for type equivalent to int64_t) + AC_MSG_RESULT(${acx_cv_type_int64_t-'using preprocessor symbols'}) +fi + +# Now we can use the above types + +if test "$ac_cv_type_uintptr_t" != yes; then + AC_MSG_CHECKING(for type equivalent to intptr_t) + case $ac_cv_sizeof_void_p in + 2) acx_cv_type_intptr_t=int16_t ;; + 4) acx_cv_type_intptr_t=int32_t ;; + 8) acx_cv_type_intptr_t=int64_t ;; + *) AC_MSG_ERROR(no equivalent for intptr_t, please report a bug) + esac + AC_MSG_RESULT($acx_cv_type_intptr_t) +fi + +# ----------------- done all checks, emit header ------------- +AC_CONFIG_COMMANDS(_GCC_STDINT_H, [ +if test "$GCC" = yes; then + echo "/* generated for " `$CC --version | sed 1q` "*/" > tmp-stdint.h +else + echo "/* generated for $CC */" > tmp-stdint.h +fi + +sed 's/^ *//' >> tmp-stdint.h < +EOF + +if test "$acx_cv_header_stdint" != stdint.h; then + echo "#include " >> tmp-stdint.h +fi +if test "$acx_cv_header_stdint" != stddef.h; then + echo "#include <$acx_cv_header_stdint>" >> tmp-stdint.h +fi + +sed 's/^ *//' >> tmp-stdint.h <> tmp-stdint.h <> tmp-stdint.h <> tmp-stdint.h <> tmp-stdint.h <> tmp-stdint.h <> tmp-stdint.h <> tmp-stdint.h <= 199901L + #ifndef _INT64_T + #define _INT64_T + typedef long long int64_t; + #endif + #ifndef _UINT64_T + #define _UINT64_T + typedef unsigned long long uint64_t; + #endif + + #elif defined __GNUC__ && defined (__STDC__) && __STDC__-0 + /* NextStep 2.0 cc is really gcc 1.93 but it defines __GNUC__ = 2 and + does not implement __extension__. But that compiler doesn't define + __GNUC_MINOR__. */ + # if __GNUC__ < 2 || (__NeXT__ && !__GNUC_MINOR__) + # define __extension__ + # endif + + # ifndef _INT64_T + # define _INT64_T + __extension__ typedef long long int64_t; + # endif + # ifndef _UINT64_T + # define _UINT64_T + __extension__ typedef unsigned long long uint64_t; + # endif + + #elif !defined __STRICT_ANSI__ + # if defined _MSC_VER || defined __WATCOMC__ || defined __BORLANDC__ + + # ifndef _INT64_T + # define _INT64_T + typedef __int64 int64_t; + # endif + # ifndef _UINT64_T + # define _UINT64_T + typedef unsigned __int64 uint64_t; + # endif + # endif /* compiler */ + + #endif /* ANSI version */ +EOF +fi + +# ------------- done int64_t types, emit intptr types ------------ +if test "$ac_cv_type_uintptr_t" != yes; then + sed 's/^ *//' >> tmp-stdint.h <> tmp-stdint.h < 1. + dnl Fix when strange machines are reported. + sed 's/^ *//' >> tmp-stdint.h <> tmp-stdint.h <> tmp-stdint.h <