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| author | Jeff Johnston <jjohnstn@redhat.com> | 2005-01-07 18:04:39 +0000 |
|---|---|---|
| committer | Jeff Johnston <jjohnstn@redhat.com> | 2005-01-07 18:04:39 +0000 |
| commit | f7a74742e69119d7133c8d9619ae94175faed068 (patch) | |
| tree | 526a24a1f892045b2e52bec5a0ee8ba743ee32be /newlib/configure | |
| parent | 35310094a18515e7b0be818abbff262f6718f849 (diff) | |
| download | cygnal-f7a74742e69119d7133c8d9619ae94175faed068.tar.gz cygnal-f7a74742e69119d7133c8d9619ae94175faed068.tar.bz2 cygnal-f7a74742e69119d7133c8d9619ae94175faed068.zip | |
2005-01-07 Paul Brook <paul@codesourcery.com>
* configure.in: Add test for .init_array.
* configure: Regenerate.
* newlib.hin: Add HAVE_INITFINI_ARRAY.
* libc/misc/Makefile.am: Add init.c
* libc/misc/Makefile.in: Regenerate.
* libc/misc/init.c: New file.
* libc/sys/arm/crt0.S: Call __libc_{init,fini}_array instead of
_init/_fini if they exist.
Diffstat (limited to 'newlib/configure')
| -rwxr-xr-x | newlib/configure | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/newlib/configure b/newlib/configure index e684ba6f3..48ce0d37c 100755 --- a/newlib/configure +++ b/newlib/configure @@ -3425,6 +3425,40 @@ EOF done fi; +echo $ac_n "checking for .preinit_array/.init_array/.fini_array support""... $ac_c" 1>&6 +echo "configure:3430: checking for .preinit_array/.init_array/.fini_array support" >&5 +if eval "test \"`echo '$''{'libc_cv_initfinit_array'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + cat > conftest.c <<EOF +int _start (void) { return 0; } +int __start (void) { return 0; } +int foo (void) { return 1; } +int (*fp) (void) __attribute__ ((section (".init_array"))) = foo; +EOF +if { ac_try='${CC} $CFLAGS $CPPFLAGS $LDFLAGS -o conftest conftest.c + -static -nostartfiles -nostdlib 1>&AS_MESSAGE_LOG_FD'; { (eval echo configure:3441: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } +then + if readelf -S conftest | grep -e INIT_ARRAY > /dev/null; then + libc_cv_initfinit_array=yes + else + libc_cv_initfinit_array=no + fi +else + libc_cv_initfinit_array=no +fi +rm -f conftest* +fi + +echo "$ac_t""$libc_cv_initfinit_array" 1>&6 + +if test $libc_cv_initfinit_array = yes; then + cat >> confdefs.h <<EOF +#define HAVE_INITFINI_ARRAY 1 +EOF + +fi + trap '' 1 2 15 cat > confcache <<\EOF # This file is a shell script that caches the results of configure @@ -3641,6 +3675,7 @@ s%@SYSCALL_OBJECTLIST@%$SYSCALL_OBJECTLIST%g s%@UNIX_OBJECTLIST@%$UNIX_OBJECTLIST%g s%@STDIO64_OBJECTLIST@%$STDIO64_OBJECTLIST%g s%@CC_FOR_BUILD@%$CC_FOR_BUILD%g +s%@libc_cv_initfinit_array@%$libc_cv_initfinit_array%g CEOF EOF |