diff options
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 41 |
1 files changed, 33 insertions, 8 deletions
@@ -194,6 +194,7 @@ opengl="" zlib="yes" guest_agent="yes" libiscsi="" +coroutine="" # parse CC options first for opt do @@ -784,6 +785,8 @@ for opt do ;; --with-pkgversion=*) pkgversion=" ($optarg)" ;; + --with-coroutine=*) coroutine="$optarg" + ;; --disable-docs) docs="no" ;; --enable-docs) docs="yes" @@ -1110,6 +1113,8 @@ echo " --disable-usb-redir disable usb network redirection support" echo " --enable-usb-redir enable usb network redirection support" echo " --disable-guest-agent disable building of the QEMU Guest Agent" echo " --enable-guest-agent enable building of the QEMU Guest Agent" +echo " --with-coroutine=BACKEND coroutine backend. Supported options:" +echo " gthread, ucontext, sigaltstack, windows" echo "" echo "NOTE: The object files are built at the place where configure is launched" exit 1 @@ -2715,21 +2720,38 @@ EOF fi ########################################## -# check if we have makecontext -# (and that it's not a glibc stub which always returns -1) +# check and set a backend for coroutine -ucontext_coroutine=no -if test "$darwin" != "yes"; then - cat > $TMPC << EOF +# default is ucontext, but always fallback to gthread +# windows autodetected by make +if test "$coroutine" = "" -o "$coroutine" = "ucontext"; then + if test "$darwin" != "yes"; then + cat > $TMPC << EOF #include <ucontext.h> #ifdef __stub_makecontext #error Ignoring glibc stub makecontext which will always fail #endif int main(void) { makecontext(0, 0, 0); return 0; } EOF - if compile_prog "" "" ; then - ucontext_coroutine=yes + if compile_prog "" "" ; then + coroutine_backend=ucontext + else + coroutine_backend=gthread + fi + else + echo "Silently falling back into gthread backend under darwin" fi +elif test "$coroutine" = "gthread" ; then + coroutine_backend=gthread +elif test "$coroutine" = "windows" ; then + coroutine_backend=windows +elif test "$coroutine" = "sigaltstack" ; then + coroutine_backend=sigaltstack +else + echo + echo "Error: unknown coroutine backend $coroutine" + echo + exit 1 fi ########################################## @@ -2931,6 +2953,7 @@ echo "usb net redir $usb_redir" echo "OpenGL support $opengl" echo "libiscsi support $libiscsi" echo "build guest agent $guest_agent" +echo "coroutine backend $coroutine_backend" if test "$sdl_too_old" = "yes"; then echo "-> Your SDL version is too old - please upgrade to have SDL support" @@ -3246,8 +3269,10 @@ if test "$rbd" = "yes" ; then echo "CONFIG_RBD=y" >> $config_host_mak fi -if test "$ucontext_coroutine" = "yes" ; then +if test "$coroutine_backend" = "ucontext" ; then echo "CONFIG_UCONTEXT_COROUTINE=y" >> $config_host_mak +elif test "$coroutine_backend" = "sigaltstack" ; then + echo "CONFIG_SIGALTSTACK_COROUTINE=y" >> $config_host_mak fi if test "$open_by_handle_at" = "yes" ; then |