diff options
| author | Marcelo Tosatti <mtosatti@redhat.com> | 2010-10-11 15:31:15 -0300 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2010-10-20 16:15:04 -0500 |
| commit | dcc38d1cce61e7d986e74dcd9bff2a5efc53a87c (patch) | |
| tree | 0dd5b5afae1590c6763858314b91fcf788d11c84 /configure | |
| parent | 296acb643b0f7ec3ab3d8c4a8fc48039d9269818 (diff) | |
signalfd compatibility
Port qemu-kvm's signalfd compat code.
commit 5a7fdd0abd7cd24dac205317a4195446ab8748b5
Author: Anthony Liguori <aliguori@us.ibm.com>
Date: Wed May 7 11:55:47 2008 -0500
Use signalfd() in io-thread
This patch reworks the IO thread to use signalfd() instead of sigtimedwait()
This will eliminate the need to use SIGIO everywhere.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 18 |
1 files changed, 18 insertions, 0 deletions
@@ -1957,6 +1957,21 @@ if compile_prog "" "" ; then splice=yes fi +########################################## +# signalfd probe +signalfd="no" +cat > $TMPC << EOF +#define _GNU_SOURCE +#include <unistd.h> +#include <sys/syscall.h> +#include <signal.h> +int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); } +EOF + +if compile_prog "" "" ; then + signalfd=yes +fi + # check if eventfd is supported eventfd=no cat > $TMPC << EOF @@ -2559,6 +2574,9 @@ fi if test "$fdt" = "yes" ; then echo "CONFIG_FDT=y" >> $config_host_mak fi +if test "$signalfd" = "yes" ; then + echo "CONFIG_SIGNALFD=y" >> $config_host_mak +fi if test "$need_offsetof" = "yes" ; then echo "CONFIG_NEED_OFFSETOF=y" >> $config_host_mak fi |