Skip to content

R
riscv-gcc-1
Commit 4d447364 by Maciej W. Rozycki Committed by Nathanael Nerode
Options

acinclude.m4 (AC_FUNC_MMAP_BLACKLIST): Check for <sys/mman.h> and mmap()… 

acinclude.m4 (AC_FUNC_MMAP_BLACKLIST): Check for <sys/mman.h> and mmap() explicitly instead of relying on preset...

2004-07-30  Maciej W. Rozycki  <macro@linux-mips.org>

	* acinclude.m4 (AC_FUNC_MMAP_BLACKLIST): Check for <sys/mman.h>
	and mmap() explicitly instead of relying on preset autoconf cache
	variables.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

From-SVN: r85500
parent b522f768
Showing with 255 additions and 4 deletions
libffi/ChangeLog
2004-07-30 Maciej W. Rozycki <macro@linux-mips.org>
* acinclude.m4 (AC_FUNC_MMAP_BLACKLIST): Check for <sys/mman.h>
and mmap() explicitly instead of relying on preset autoconf cache
variables.
* aclocal.m4: Regenerate.
* configure: Regenerate.
2004-07-11 Ulrich Weigand <uweigand@de.ibm.com>
* src/s390/ffi.c (ffi_prep_args): Fix C aliasing violation.
......
libffi/acinclude.m4
......@@ -11,8 +11,12 @@ AC_SUBST(LIBTOOL)
# mmap(2) blacklisting. Some platforms provide the mmap library routine
# but don't support all of the features we need from it.
AC_DEFUN([AC_FUNC_MMAP_BLACKLIST],
[if test $ac_cv_header_sys_mman_h != yes \
|| test $ac_cv_func_mmap != yes; then
[
AC_CHECK_HEADER([sys/mman.h],
[libffi_header_sys_mman_h=yes], [libffi_header_sys_mman_h=no])
AC_CHECK_FUNC([mmap], [libffi_func_mmap=yes], [libffi_func_mmap=no])
if test "$libffi_header_sys_mman_h" != yes \
|| test "$libffi_func_mmap" != yes; then
ac_cv_func_mmap_file=no
ac_cv_func_mmap_dev_zero=no
ac_cv_func_mmap_anon=no
......
libffi/configure
......@@ -4883,8 +4883,247 @@ _ACEOF
fi
done
if test $ac_cv_header_sys_mman_h != yes \
|| test $ac_cv_func_mmap != yes; then
if test "${ac_cv_header_sys_mman_h+set}" = set; then
echo "$as_me:$LINENO: checking for sys/mman.h" >&5
echo $ECHO_N "checking for sys/mman.h... $ECHO_C" >&6
if test "${ac_cv_header_sys_mman_h+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_sys_mman_h" >&5
echo "${ECHO_T}$ac_cv_header_sys_mman_h" >&6
else
# Is the header compilable?
echo "$as_me:$LINENO: checking sys/mman.h usability" >&5
echo $ECHO_N "checking sys/mman.h usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
$ac_includes_default
#include <sys/mman.h>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
(eval $ac_compile) 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
cat conftest.err >&5
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } &&
{ ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
{ ac_try='test -s conftest.$ac_objext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
ac_header_compiler=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
ac_header_compiler=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6
# Is the header present?
echo "$as_me:$LINENO: checking sys/mman.h presence" >&5
echo $ECHO_N "checking sys/mman.h presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
#include <sys/mman.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
(eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
cat conftest.err >&5
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } >/dev/null; then
if test -s conftest.err; then
ac_cpp_err=$ac_c_preproc_warn_flag
ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
else
ac_cpp_err=
fi
else
ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
ac_header_preproc=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6
# So? What about this header?
case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
yes:no: )
{ echo "$as_me:$LINENO: WARNING: sys/mman.h: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: sys/mman.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
{ echo "$as_me:$LINENO: WARNING: sys/mman.h: proceeding with the compiler's result" >&5
echo "$as_me: WARNING: sys/mman.h: proceeding with the compiler's result" >&2;}
ac_header_preproc=yes
;;
no:yes:* )
{ echo "$as_me:$LINENO: WARNING: sys/mman.h: present but cannot be compiled" >&5
echo "$as_me: WARNING: sys/mman.h: present but cannot be compiled" >&2;}
{ echo "$as_me:$LINENO: WARNING: sys/mman.h: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: sys/mman.h: check for missing prerequisite headers?" >&2;}
{ echo "$as_me:$LINENO: WARNING: sys/mman.h: see the Autoconf documentation" >&5
echo "$as_me: WARNING: sys/mman.h: see the Autoconf documentation" >&2;}
{ echo "$as_me:$LINENO: WARNING: sys/mman.h: section \"Present But Cannot Be Compiled\"" >&5
echo "$as_me: WARNING: sys/mman.h: section \"Present But Cannot Be Compiled\"" >&2;}
{ echo "$as_me:$LINENO: WARNING: sys/mman.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: sys/mman.h: proceeding with the preprocessor's result" >&2;}
{ echo "$as_me:$LINENO: WARNING: sys/mman.h: in the future, the compiler will take precedence" >&5
echo "$as_me: WARNING: sys/mman.h: in the future, the compiler will take precedence" >&2;}
(
cat <<\_ASBOX
## ------------------------------------------- ##
## Report this to http://gcc.gnu.org/bugs.html ##
## ------------------------------------------- ##
_ASBOX
) |
sed "s/^/$as_me: WARNING: /" >&2
;;
esac
echo "$as_me:$LINENO: checking for sys/mman.h" >&5
echo $ECHO_N "checking for sys/mman.h... $ECHO_C" >&6
if test "${ac_cv_header_sys_mman_h+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
ac_cv_header_sys_mman_h=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_sys_mman_h" >&5
echo "${ECHO_T}$ac_cv_header_sys_mman_h" >&6
fi
if test $ac_cv_header_sys_mman_h = yes; then
libffi_header_sys_mman_h=yes
else
libffi_header_sys_mman_h=no
fi
echo "$as_me:$LINENO: checking for mmap" >&5
echo $ECHO_N "checking for mmap... $ECHO_C" >&6
if test "${ac_cv_func_mmap+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
/* Define mmap to an innocuous variant, in case <limits.h> declares mmap.
For example, HP-UX 11i <limits.h> declares gettimeofday. */
#define mmap innocuous_mmap
/* System header to define __stub macros and hopefully few prototypes,
which can conflict with char mmap (); below.
Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
<limits.h> exists even on freestanding compilers. */
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
#undef mmap
/* Override any gcc2 internal prototype to avoid an error. */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
builtin and then its argument prototype would still apply. */
char mmap ();
/* The GNU C library defines this for functions which it implements
to always fail with ENOSYS. Some functions are actually named
something starting with __ and the normal name is an alias. */
#if defined (__stub_mmap) || defined (__stub___mmap)
choke me
#else
char (*f) () = mmap;
#endif
#ifdef __cplusplus
}
#endif
int
main ()
{
return f != mmap;
;
return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
(eval $ac_link) 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
cat conftest.err >&5
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } &&
{ ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
{ ac_try='test -s conftest$ac_exeext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
ac_cv_func_mmap=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
ac_cv_func_mmap=no
fi
rm -f conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_func_mmap" >&5
echo "${ECHO_T}$ac_cv_func_mmap" >&6
if test $ac_cv_func_mmap = yes; then
libffi_func_mmap=yes
else
libffi_func_mmap=no
fi
if test "$libffi_header_sys_mman_h" != yes \
|| test "$libffi_func_mmap" != yes; then
ac_cv_func_mmap_file=no
ac_cv_func_mmap_dev_zero=no
ac_cv_func_mmap_anon=no
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment