| Message ID | 1321965139-31265-1-git-send-email-avi@redhat.com |
|---|---|
| State | New |
| Headers | show |
On 11/22/11 13:32, Avi Kivity wrote: > Some toolchains don't support pie properly when tls variables are > in use. Disallow pie when such toolchains are detected. > > Signed-off-by: Avi Kivity <avi@redhat.com> > --- > configure | 5 ++++- > 1 files changed, 4 insertions(+), 1 deletions(-) > > diff --git a/configure b/configure > index 75e1f10..7e6c640 100755 > --- a/configure > +++ b/configure > @@ -1120,7 +1120,10 @@ fi > > if test "$pie" != "no" ; then > cat > $TMPC << EOF > -int main(void) { return 0; } > + > +static __thread tls_var; > + > +int main(void) { return tls_var; } > EOF > if compile_prog "-fPIE -DPIE" "-pie"; then > QEMU_CFLAGS="-fPIE -DPIE $QEMU_CFLAGS" Survived testbuild. thanks, Gerd
diff --git a/configure b/configure index 75e1f10..7e6c640 100755 --- a/configure +++ b/configure @@ -1120,7 +1120,10 @@ fi if test "$pie" != "no" ; then cat > $TMPC << EOF -int main(void) { return 0; } + +static __thread tls_var; + +int main(void) { return tls_var; } EOF if compile_prog "-fPIE -DPIE" "-pie"; then QEMU_CFLAGS="-fPIE -DPIE $QEMU_CFLAGS"
Some toolchains don't support pie properly when tls variables are in use. Disallow pie when such toolchains are detected. Signed-off-by: Avi Kivity <avi@redhat.com> --- configure | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-)