diff options
| -rwxr-xr-x | configure | 40 | ||||
| -rw-r--r-- | meson.build | 22 | ||||
| -rw-r--r-- | meson_options.txt | 6 | ||||
| -rw-r--r-- | scripts/meson-buildoptions.sh | 3 | ||||
| -rw-r--r-- | util/meson.build | 4 |
5 files changed, 33 insertions, 42 deletions
@@ -290,7 +290,6 @@ EXTRA_CXXFLAGS="" EXTRA_LDFLAGS="" xen_ctrl_version="$default_feature" -membarrier="$default_feature" vhost_kernel="$default_feature" vhost_net="$default_feature" vhost_crypto="$default_feature" @@ -967,10 +966,6 @@ for opt do ;; --enable-fdt=*) fdt="$optarg" ;; - --disable-membarrier) membarrier="no" - ;; - --enable-membarrier) membarrier="yes" - ;; --with-pkgversion=*) pkgversion="$optarg" ;; --with-coroutine=*) coroutine="$optarg" @@ -1382,7 +1377,6 @@ cat << EOF lto Enable Link-Time Optimization. safe-stack SafeStack Stack Smash Protection. Depends on clang/llvm >= 3.7 and requires coroutine backend ucontext. - membarrier membarrier system call (for Linux 4.14+ or Windows) rdma Enable RDMA-based migration pvrdma Enable PVRDMA support vhost-net vhost-net kernel acceleration support @@ -2824,37 +2818,6 @@ if test "$fortify_source" != "no"; then fi ########################################## -# check for usable membarrier system call -if test "$membarrier" = "yes"; then - have_membarrier=no - if test "$mingw32" = "yes" ; then - have_membarrier=yes - elif test "$linux" = "yes" ; then - cat > $TMPC << EOF - #include <linux/membarrier.h> - #include <sys/syscall.h> - #include <unistd.h> - #include <stdlib.h> - int main(void) { - syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0); - syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0); - exit(0); - } -EOF - if compile_prog "" "" ; then - have_membarrier=yes - fi - fi - if test "$have_membarrier" = "no"; then - feature_not_found "membarrier" "membarrier system call not available" - fi -else - # Do not enable it by default even for Mingw32, because it doesn't - # work on Wine. - membarrier=no -fi - -########################################## # check for usable AF_ALG environment have_afalg=no cat > $TMPC << EOF @@ -3315,9 +3278,6 @@ fi if test "$vhost_user_fs" = "yes" ; then echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak fi -if test "$membarrier" = "yes" ; then - echo "CONFIG_MEMBARRIER=y" >> $config_host_mak -fi if test "$tcg" = "enabled" -a "$tcg_interpreter" = "true" ; then echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak fi diff --git a/meson.build b/meson.build index 7a262051b7..6dc38a7916 100644 --- a/meson.build +++ b/meson.build @@ -1808,6 +1808,26 @@ config_host_data.set('CONFIG_AVX512F_OPT', get_option('avx512f') \ int main(int argc, char *argv[]) { return bar(argv[0]); } '''), error_message: 'AVX512F not available').allowed()) +if get_option('membarrier').disabled() + have_membarrier = false +elif targetos == 'windows' + have_membarrier = true +elif targetos == 'linux' + have_membarrier = cc.compiles(''' + #include <linux/membarrier.h> + #include <sys/syscall.h> + #include <unistd.h> + #include <stdlib.h> + int main(void) { + syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0); + syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0); + exit(0); + }''') +endif +config_host_data.set('CONFIG_MEMBARRIER', get_option('membarrier') \ + .require(have_membarrier, error_message: 'membarrier system call not available') \ + .allowed()) + config_host_data.set('CONFIG_AF_VSOCK', cc.compiles(gnu_source_prefix + ''' #include <errno.h> #include <sys/types.h> @@ -3331,7 +3351,7 @@ summary_info += {'link-time optimization (LTO)': get_option('b_lto')} summary_info += {'PIE': get_option('b_pie')} summary_info += {'static build': config_host.has_key('CONFIG_STATIC')} summary_info += {'malloc trim support': has_malloc_trim} -summary_info += {'membarrier': config_host.has_key('CONFIG_MEMBARRIER')} +summary_info += {'membarrier': have_membarrier} summary_info += {'debug stack usage': config_host.has_key('CONFIG_DEBUG_STACK_USAGE')} summary_info += {'mutex debugging': config_host.has_key('CONFIG_DEBUG_MUTEX')} summary_info += {'memory allocator': get_option('malloc')} diff --git a/meson_options.txt b/meson_options.txt index 6ff349023c..49f14f960e 100644 --- a/meson_options.txt +++ b/meson_options.txt @@ -68,6 +68,12 @@ option('multiprocess', type: 'feature', value: 'auto', description: 'Out of process device emulation support') option('dbus_display', type: 'feature', value: 'auto', description: '-display dbus support') + +# Do not enable it by default even for Mingw32, because it doesn't +# work on Wine. +option('membarrier', type: 'feature', value: 'disabled', + description: 'membarrier system call (for Linux 4.14+ or Windows') + option('avx2', type: 'feature', value: 'auto', description: 'AVX2 optimizations') option('avx512f', type: 'feature', value: 'disabled', diff --git a/scripts/meson-buildoptions.sh b/scripts/meson-buildoptions.sh index dcfc39ec6b..c204ede02b 100644 --- a/scripts/meson-buildoptions.sh +++ b/scripts/meson-buildoptions.sh @@ -65,6 +65,7 @@ meson_options_help() { printf "%s\n" ' lzfse lzfse support for DMG images' printf "%s\n" ' lzo lzo compression support' printf "%s\n" ' malloc-trim enable libc malloc_trim() for memory optimization' + printf "%s\n" ' membarrier membarrier system call (for Linux 4.14+ or Windows' printf "%s\n" ' mpath Multipath persistent reservation passthrough' printf "%s\n" ' multiprocess Out of process device emulation support' printf "%s\n" ' netmap netmap network backend support' @@ -204,6 +205,8 @@ _meson_option_parse() { --enable-malloc=*) quote_sh "-Dmalloc=$2" ;; --enable-malloc-trim) printf "%s" -Dmalloc_trim=enabled ;; --disable-malloc-trim) printf "%s" -Dmalloc_trim=disabled ;; + --enable-membarrier) printf "%s" -Dmembarrier=enabled ;; + --disable-membarrier) printf "%s" -Dmembarrier=disabled ;; --enable-mpath) printf "%s" -Dmpath=enabled ;; --disable-mpath) printf "%s" -Dmpath=disabled ;; --enable-multiprocess) printf "%s" -Dmultiprocess=enabled ;; diff --git a/util/meson.build b/util/meson.build index c9a9cc1cf5..3736988b9f 100644 --- a/util/meson.build +++ b/util/meson.build @@ -35,7 +35,9 @@ util_ss.add(files('crc32c.c')) util_ss.add(files('uuid.c')) util_ss.add(files('getauxval.c')) util_ss.add(files('rcu.c')) -util_ss.add(when: 'CONFIG_MEMBARRIER', if_true: files('sys_membarrier.c')) +if have_membarrier + util_ss.add(files('sys_membarrier.c')) +endif util_ss.add(files('log.c')) util_ss.add(files('pagesize.c')) util_ss.add(files('qdist.c')) |