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For PR351:
* Add checks for sterror and strerror_r functions * Add check to determine if /dev/zero is needed for allocating RWX memory. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19148 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer
parent
5d01fa5bbe
commit
7931a7867b
@ -443,7 +443,8 @@ dnl===-----------------------------------------------------------------------===
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AC_CHECK_FUNCS([backtrace getcwd getpagesize getrusage gettimeofday isatty ])
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AC_CHECK_FUNCS([mkdtemp mkstemp mktemp ])
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AC_CHECK_FUNCS([realpath setrlimit strdup strtoq strtoll sysconf ])
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AC_CHECK_FUNCS([realpath setrlimit strdup strerror strerror_r strtoll strtoq ])
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AC_CHECK_FUNCS([sysconf])
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AC_C_PRINTF_A
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AC_FUNC_ALLOCA
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AC_FUNC_RAND48
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@ -459,9 +460,11 @@ AC_FUNC_ISNAN
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AC_FUNC_ISINF
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dnl Check for mmap and mprotect support. We need both to do the JIT and for
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dnl bytecode loading, etc.
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dnl bytecode loading, etc. We also need to know if /dev/zero is required to
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dnl be opened for allocating RWX memory.
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AC_FUNC_MMAP
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AC_FUNC_MMAP_FILE
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AC_NEED_DEV_ZERO_FOR_MMAP
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AC_CHECK_FUNC(mprotect,,
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AC_MSG_ERROR([Function mprotect() required but not found]))
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130
configure
vendored
130
configure
vendored
@ -24601,7 +24601,7 @@ esac
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ETAGSFLAGS=$ETAGSFLAGS
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if test "$WITH_LLVMGCCDIR" != "default" ; then
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if test "$WITH_LLVMGCCDIR" = "default" ; then
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# Extract the first word of "llvm-gcc", so it can be a program name with args.
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set dummy llvm-gcc; ac_word=$2
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echo "$as_me:$LINENO: checking for $ac_word" >&5
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@ -25750,7 +25750,7 @@ echo "${ECHO_T}$ac_cv_header_mmap_anon" >&6
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if test "$ac_cv_header_mmap_anon" = yes; then
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cat >>confdefs.h <<\_ACEOF
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#define HAVE_MMAP_ANONYMOUS
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#define HAVE_MMAP_ANONYMOUS 1
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_ACEOF
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fi
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@ -27269,7 +27269,110 @@ done
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for ac_func in realpath setrlimit strdup strtoq strtoll sysconf
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for ac_func in realpath setrlimit strdup strerror strerror_r strtoll strtoq
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do
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as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
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echo "$as_me:$LINENO: checking for $ac_func" >&5
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echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
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if eval "test \"\${$as_ac_var+set}\" = set"; then
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echo $ECHO_N "(cached) $ECHO_C" >&6
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else
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cat >conftest.$ac_ext <<_ACEOF
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/* confdefs.h. */
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_ACEOF
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cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
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/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
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For example, HP-UX 11i <limits.h> declares gettimeofday. */
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#define $ac_func innocuous_$ac_func
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/* System header to define __stub macros and hopefully few prototypes,
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which can conflict with char $ac_func (); below.
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Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
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<limits.h> exists even on freestanding compilers. */
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#ifdef __STDC__
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# include <limits.h>
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#else
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# include <assert.h>
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#endif
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#undef $ac_func
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/* Override any gcc2 internal prototype to avoid an error. */
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/* We use char because int might match the return type of a gcc2
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builtin and then its argument prototype would still apply. */
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char $ac_func ();
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/* The GNU C library defines this for functions which it implements
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to always fail with ENOSYS. Some functions are actually named
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something starting with __ and the normal name is an alias. */
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#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
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choke me
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#else
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char (*f) () = $ac_func;
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#endif
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#ifdef __cplusplus
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}
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#endif
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int
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main ()
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{
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return f != $ac_func;
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;
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return 0;
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}
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_ACEOF
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rm -f conftest.$ac_objext conftest$ac_exeext
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if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
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(eval $ac_link) 2>conftest.er1
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ac_status=$?
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grep -v '^ *+' conftest.er1 >conftest.err
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rm -f conftest.er1
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cat conftest.err >&5
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); } &&
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{ ac_try='test -z "$ac_c_werror_flag"
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|| test ! -s conftest.err'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; } &&
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{ ac_try='test -s conftest$ac_exeext'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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eval "$as_ac_var=yes"
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else
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echo "$as_me: failed program was:" >&5
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sed 's/^/| /' conftest.$ac_ext >&5
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eval "$as_ac_var=no"
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fi
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rm -f conftest.err conftest.$ac_objext \
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conftest$ac_exeext conftest.$ac_ext
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fi
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echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
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echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
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if test `eval echo '${'$as_ac_var'}'` = yes; then
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cat >>confdefs.h <<_ACEOF
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#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
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_ACEOF
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fi
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done
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for ac_func in sysconf
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do
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as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
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echo "$as_me:$LINENO: checking for $ac_func" >&5
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@ -29747,6 +29850,27 @@ _ACEOF
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fi
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echo "$as_me:$LINENO: checking if /dev/zero is needed for mmap" >&5
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echo $ECHO_N "checking if /dev/zero is needed for mmap... $ECHO_C" >&6
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if test "${ac_cv_need_dev_zero_for_mmap+set}" = set; then
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echo $ECHO_N "(cached) $ECHO_C" >&6
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else
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if test "$llvm_cv_os_type" == "Interix" ; then
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ac_cv_need_dev_zero_for_mmap=yes
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else
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ac_cv_need_dev_zero_for_mmap=no
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fi
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fi
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echo "$as_me:$LINENO: result: $ac_cv_need_dev_zero_for_mmap" >&5
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echo "${ECHO_T}$ac_cv_need_dev_zero_for_mmap" >&6
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if test "$ac_cv_need_dev_zero_for_mmap" = yes; then
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cat >>confdefs.h <<\_ACEOF
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#define NEED_DEV_ZERO_FOR_MMAP 1
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_ACEOF
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fi
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echo "$as_me:$LINENO: checking for mprotect" >&5
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echo $ECHO_N "checking for mprotect... $ECHO_C" >&6
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if test "${ac_cv_func_mprotect+set}" = set; then
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@ -270,6 +270,12 @@
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/* Define to 1 if you have the `strdup' function. */
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#undef HAVE_STRDUP
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/* Define to 1 if you have the `strerror' function. */
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#undef HAVE_STRERROR
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/* Define to 1 if you have the `strerror_r' function. */
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#undef HAVE_STRERROR_R
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/* Define to 1 if you have the <strings.h> header file. */
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#undef HAVE_STRINGS_H
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@ -385,6 +391,10 @@
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/* Define to the system default library search path. */
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#undef LTDL_SYSSEARCHPATH
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/* Define if /dev/zero should be used when mapping RWX memory, or undefine if
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its not necessary */
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#undef NEED_DEV_ZERO_FOR_MMAP
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/* Define if dlsym() requires a leading underscore in symbol names. */
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#undef NEED_USCORE
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