Le 18/11/2020 à 18:10, Thomas Huth a écrit :
> This check can be done in a much shorter way in meson.build. And while
> we're at it, rename the #define to HAVE_BTRFS_H to match the other
> HAVE_someheader_H symbols that we already have.
>
> Signed-off-by: Thomas Huth <th...@redhat.com>
> ---
> configure | 9 ---------
> linux-user/syscall.c | 2 +-
> linux-user/syscall_defs.h | 2 +-
> meson.build | 1 +
> 4 files changed, 3 insertions(+), 11 deletions(-)
>
> diff --git a/configure b/configure
> index 8d40a0beb3..1ba4bf9a3d 100755
> --- a/configure
> +++ b/configure
> @@ -4389,12 +4389,6 @@ if compile_prog "" "" ; then
> syncfs=yes
> fi
>
> -# check for btrfs filesystem support (kernel must be 3.9+)
> -btrfs=no
> -if check_include linux/btrfs.h ; then
> - btrfs=yes
> -fi
> -
> # Search for bswap_32 function
> byteswap_h=no
> cat > $TMPC << EOF
> @@ -6086,9 +6080,6 @@ fi
> if test "$syncfs" = "yes" ; then
> echo "CONFIG_SYNCFS=y" >> $config_host_mak
> fi
> -if test "$btrfs" = "yes" ; then
> - echo "CONFIG_BTRFS=y" >> $config_host_mak
> -fi
> if test "$inotify" = "yes" ; then
> echo "CONFIG_INOTIFY=y" >> $config_host_mak
> fi
> diff --git a/linux-user/syscall.c b/linux-user/syscall.c
> index 063130be04..7bf99beb18 100644
> --- a/linux-user/syscall.c
> +++ b/linux-user/syscall.c
> @@ -112,7 +112,7 @@
> #include <linux/if_alg.h>
> #include <linux/rtc.h>
> #include <sound/asound.h>
> -#ifdef CONFIG_BTRFS
> +#ifdef HAVE_BTRFS_H
> #include <linux/btrfs.h>
> #endif
> #ifdef HAVE_DRM_H
> diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
> index cabbfb762d..b934d0b606 100644
> --- a/linux-user/syscall_defs.h
> +++ b/linux-user/syscall_defs.h
> @@ -1006,7 +1006,7 @@ struct target_rtc_pll_info {
> #define TARGET_FS_IOC32_SETVERSION TARGET_IOW('v', 2, int)
>
> /* btrfs ioctls */
> -#ifdef CONFIG_BTRFS
> +#ifdef HAVE_BTRFS_H
> #define TARGET_BTRFS_IOC_SNAP_CREATE
> TARGET_IOWU(BTRFS_IOCTL_MAGIC, 1)
> #define TARGET_BTRFS_IOC_SCAN_DEV
> TARGET_IOWU(BTRFS_IOCTL_MAGIC, 4)
> #define TARGET_BTRFS_IOC_FORGET_DEV
> TARGET_IOWU(BTRFS_IOCTL_MAGIC, 5)
> diff --git a/meson.build b/meson.build
> index ab9571a354..bf62e260ed 100644
> --- a/meson.build
> +++ b/meson.build
> @@ -808,6 +808,7 @@ config_host_data.set('QEMU_VERSION_MAJOR',
> meson.project_version().split('.')[0]
> config_host_data.set('QEMU_VERSION_MINOR',
> meson.project_version().split('.')[1])
> config_host_data.set('QEMU_VERSION_MICRO',
> meson.project_version().split('.')[2])
>
> +config_host_data.set('HAVE_BTRFS_H', cc.has_header('linux/btrfs.h'))
> config_host_data.set('HAVE_DRM_H', cc.has_header('libdrm/drm.h'))
> config_host_data.set('HAVE_PTY_H', cc.has_header('pty.h'))
> config_host_data.set('HAVE_SYS_IOCCOM_H', cc.has_header('sys/ioccom.h'))
>
Applied to my trivial-patches branch.
Thanks,
Laurent
