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Distinguish configure check for .ctors/.dtors header/trailers.

This commit is contained in:
Roland McGrath 2011-06-27 20:39:05 -07:00
parent 78a7eee7fa
commit 62bede1313
3 changed files with 32 additions and 2 deletions
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4
ChangeLog
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@ -1,5 +1,9 @@
2011-06-27 Roland McGrath <roland@hack.frob.com>
* configure.in (NO_CTORS_DTORS_SECTIONS): Give this check its own
AC_CACHE_CHECK invocation.
* configure: Regenerated.
* elf/soinit.c (__CTOR_LIST__, __DTOR_LIST__): Add used attribute.
2011-06-27 Ulrich Drepper <drepper@gmail.com>

18
configure vendored
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@ -6111,12 +6111,28 @@ fi
$as_echo "$libc_cv_initfini_array" >&6; }
if test $libc_cv_initfini_array != yes; then
as_fn_error $? "Need linker with .init_array/.fini_array support." "$LINENO" 5
elif { ac_try='${CC-cc} -Wl,--verbose 2>&1|grep SORT_BY_INIT_PRIORITY 1>&5'
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to use .ctors/.dtors header and trailer" >&5
$as_echo_n "checking whether to use .ctors/.dtors header and trailer... " >&6; }
if ${libc_cv_ctors_header+:} false; then :
$as_echo_n "(cached) " >&6
else
if { ac_try='${CC-cc} -Wl,--verbose 2>&1|grep SORT_BY_INIT_PRIORITY 1>&5'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; }; then
libc_cv_ctors_header=no
else
libc_cv_ctors_header=yes
fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ctors_header" >&5
$as_echo "$libc_cv_ctors_header" >&6; }
if test $libc_cv_ctors_header = no; then
$as_echo "#define NO_CTORS_DTORS_SECTIONS 1" >>confdefs.h
fi

12
configure.in
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@ -1479,7 +1479,17 @@ EOF
rm -f conftest*])
if test $libc_cv_initfini_array != yes; then
AC_MSG_ERROR([Need linker with .init_array/.fini_array support.])
elif AC_TRY_COMMAND([${CC-cc} -Wl,--verbose 2>&1|grep SORT_BY_INIT_PRIORITY 1>&AS_MESSAGE_LOG_FD]); then
fi
AC_CACHE_CHECK(whether to use .ctors/.dtors header and trailer,
libc_cv_ctors_header, [dnl
if AC_TRY_COMMAND([${CC-cc} -Wl,--verbose 2>&1|grep SORT_BY_INIT_PRIORITY 1>&AS_MESSAGE_LOG_FD]); then
libc_cv_ctors_header=no
else
libc_cv_ctors_header=yes
fi])
if test $libc_cv_ctors_header = no; then
AC_DEFINE(NO_CTORS_DTORS_SECTIONS)
fi