diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2022-09-26 18:22:39 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2023-09-01 23:44:39 +0200 |
| commit | 473cd070b11ab1e8aa6085202170e48c356778e8 (patch) | |
| tree | 3b611e67017ba884ba202593bfd6bcb7f8af6ae1 /configure | |
| parent | 17780edd81d27fcfdb7a802efc870a99788bd2fc (diff) | |
linux-user, bsd-user: disable on unsupported host architectures
Safe signal handling around system calls is mandatory for user-mode
emulation, and requires a small piece of handwritten assembly code.
So refuse to compile unless the common-user/host subdirectory exists
for the host architecture that was detected or selected with --cpu.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 40 |
1 files changed, 23 insertions, 17 deletions
@@ -871,30 +871,36 @@ fi default_target_list="" mak_wilds="" -if [ "$linux_user" != no ]; then - if [ "$targetos" = linux ] && [ -n "$host_arch" ]; then - linux_user=yes - elif [ "$linux_user" = yes ]; then - error_exit "linux-user not supported on this architecture" +if [ -n "$host_arch" ] && [ -d "$source_path/common-user/host/$host_arch" ]; then + if [ "$linux_user" != no ]; then + if [ "$targetos" = linux ]; then + linux_user=yes + elif [ "$linux_user" = yes ]; then + error_exit "linux-user not supported on this architecture" + fi + if [ "$linux_user" = "yes" ]; then + mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak" + fi fi -fi -if [ "$bsd_user" != no ]; then - if [ "$bsd_user" = "" ]; then - test $targetos = freebsd && bsd_user=yes + if [ "$bsd_user" != no ]; then + if [ "$bsd_user" = "" ]; then + test $targetos = freebsd && bsd_user=yes + fi + if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then + error_exit "bsd-user not supported on this host OS" + fi + if [ "$bsd_user" = "yes" ]; then + mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak" + fi fi - if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then - error_exit "bsd-user not supported on this host OS" +else + if [ "$linux_user" = yes ] || [ "$bsd_user" = yes ]; then + error_exit "user mode emulation not supported on this architecture" fi fi if [ "$softmmu" = "yes" ]; then mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak" fi -if [ "$linux_user" = "yes" ]; then - mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak" -fi -if [ "$bsd_user" = "yes" ]; then - mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak" -fi for config in $mak_wilds; do target="$(basename "$config" .mak)" |