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| author | H.J. Lu <hjl.tools@gmail.com> | 2012-11-21 12:39:21 -0800 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2012-11-21 12:39:21 -0800 |
| commit | c35d2a3a36ce9dc107dfb8ad39b923f413b813ba (patch) | |
| tree | 17273b548116623b31fd9a33b1f01abb07cfb47e | |
| parent | 0fc844f8a771cddcad68c9e58b59e065db032cd3 (diff) | |
| download | glibc-c35d2a3a36ce9dc107dfb8ad39b923f413b813ba.tar.gz glibc-c35d2a3a36ce9dc107dfb8ad39b923f413b813ba.tar.xz glibc-c35d2a3a36ce9dc107dfb8ad39b923f413b813ba.zip | |
Use LIBC_LINKER_FEATURE to check -z global support hjl/global
| -rwxr-xr-x | configure | 35 | ||||
| -rw-r--r-- | configure.in | 17 |
2 files changed, 22 insertions, 30 deletions
diff --git a/configure b/configure index 4b23722b56..e5b1e162b7 100755 --- a/configure +++ b/configure @@ -6560,32 +6560,37 @@ fi $as_echo "$libc_linker_feature" >&6; } -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -z global" >&5 -$as_echo_n "checking for -z global... " >&6; } -if ${libc_cv_z_global+:} false; then : - $as_echo_n "(cached) " >&6 -else - cat > conftest.c <<EOF +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker that supports -z global" >&5 +$as_echo_n "checking for linker that supports -z global... " >&6; } +libc_linker_feature=no +if test x"$gnu_ld" = x"yes"; then + libc_linker_check=`$LD -v --help 2>/dev/null | grep "\-z global"` + if test -n "$libc_linker_check"; then + cat > conftest.c <<EOF int _start (void) { return 42; } EOF -if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS - -fPIC -shared -o conftest.so conftest.c - -Wl,-z,global -nostdlib - 1>&5' + if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS + -Wl,-z,global -nostdlib -nostartfiles + -fPIC -shared -o conftest.so conftest.c + 1>&5' { { eval echo "\"\$as_me\":${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 + then + libc_linker_feature=yes + fi + rm -f conftest* + fi +fi +if test $libc_linker_feature = yes; then libc_cv_z_global=yes else libc_cv_z_global=no fi -rm -f conftest* -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_z_global" >&5 -$as_echo "$libc_cv_z_global" >&6; } +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_linker_feature" >&5 +$as_echo "$libc_linker_feature" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fpie" >&5 diff --git a/configure.in b/configure.in index 2ec07b1e43..55c46ade92 100644 --- a/configure.in +++ b/configure.in @@ -1561,21 +1561,8 @@ LIBC_LINKER_FEATURE([-z execstack], [-Wl,-z,execstack], [libc_cv_z_execstack=yes], [libc_cv_z_execstack=no]) AC_SUBST(libc_cv_z_execstack) -AC_CACHE_CHECK(for -z global, - libc_cv_z_global, [dnl -cat > conftest.c <<EOF -int _start (void) { return 42; } -EOF -if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS - -fPIC -shared -o conftest.so conftest.c - -Wl,-z,global -nostdlib - 1>&AS_MESSAGE_LOG_FD]) -then - libc_cv_z_global=yes -else - libc_cv_z_global=no -fi -rm -f conftest*]) +LIBC_LINKER_FEATURE([-z global], [-Wl,-z,global], + [libc_cv_z_global=yes], [libc_cv_z_global=no]) AC_SUBST(libc_cv_z_global) AC_CACHE_CHECK(for -fpie, libc_cv_fpie, [dnl |