]> Git Repo - qemu.git/blobdiff - configure
qcow2: Allow configuring the L2 slice size
[qemu.git] / configure
index 886abe6a39c03f0222eb7ac3d9a51e55bda6544d..fe9eea9218b13547d196147720339d6241f7982d 100755 (executable)
--- a/configure
+++ b/configure
@@ -222,6 +222,17 @@ supported_hvf_target() {
     return 1
 }
 
+supported_whpx_target() {
+    test "$whpx" = "yes" || return 1
+    glob "$1" "*-softmmu" || return 1
+    case "${1%-softmmu}" in
+        i386|x86_64)
+            return 0
+        ;;
+    esac
+    return 1
+}
+
 supported_target() {
     case "$1" in
         *-softmmu)
@@ -248,6 +259,7 @@ supported_target() {
     supported_xen_target "$1" && return 0
     supported_hax_target "$1" && return 0
     supported_hvf_target "$1" && return 0
+    supported_whpx_target "$1" && return 0
     print_error "TCG disabled, but hardware accelerator not available for '$target'"
     return 1
 }
@@ -338,10 +350,12 @@ vhost_user=""
 kvm="no"
 hax="no"
 hvf="no"
+whpx="no"
 rdma=""
 gprof="no"
 debug_tcg="no"
 debug="no"
+sanitizers="no"
 fortify_source=""
 strip_opt="yes"
 tcg_interpreter="no"
@@ -636,8 +650,6 @@ elif check_define _ARCH_PPC ; then
   fi
 elif check_define __mips__ ; then
   cpu="mips"
-elif check_define __ia64__ ; then
-  cpu="ia64"
 elif check_define __s390__ ; then
   if check_define __s390x__ ; then
     cpu="s390x"
@@ -995,6 +1007,10 @@ for opt do
       strip_opt="no"
       fortify_source="no"
   ;;
+  --enable-sanitizers) sanitizers="yes"
+  ;;
+  --disable-sanitizers) sanitizers="no"
+  ;;
   --enable-sparse) sparse="yes"
   ;;
   --disable-sparse) sparse="no"
@@ -1055,6 +1071,10 @@ for opt do
   ;;
   --enable-hvf) hvf="yes"
   ;;
+  --disable-whpx) whpx="no"
+  ;;
+  --enable-whpx) whpx="yes"
+  ;;
   --disable-tcg-interpreter) tcg_interpreter="no"
   ;;
   --enable-tcg-interpreter) tcg_interpreter="yes"
@@ -1476,6 +1496,7 @@ Advanced options (experts only):
   --firmwarepath=PATH      search PATH for firmware files
   --with-confsuffix=SUFFIX suffix for QEMU data inside datadir/libdir/sysconfdir [$confsuffix]
   --enable-debug           enable common debug build options
+  --enable-sanitizers      enable default sanitizers
   --disable-strip          disable stripping binaries
   --disable-werror         disable compilation abort on warning
   --disable-stack-protector disable compiler-provided stack protection
@@ -1553,6 +1574,7 @@ disabled with --disable-FEATURE, default is enabled if available:
   kvm             KVM acceleration support
   hax             HAX acceleration support
   hvf             Hypervisor.framework acceleration support
+  whpx            Windows Hypervisor Platform acceleration support
   rdma            RDMA-based migration support
   vde             support for vde network
   netmap          support for netmap network
@@ -1911,9 +1933,9 @@ int main(int argc, char *argv[]) {
 EOF
 
 if compile_object ; then
-    if grep -q BiGeNdIaN $TMPO ; then
+    if strings -a $TMPO | grep -q BiGeNdIaN ; then
         bigendian="yes"
-    elif grep -q LiTtLeEnDiAn $TMPO ; then
+    elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
         bigendian="no"
     else
         echo big/little test failed
@@ -2450,6 +2472,30 @@ if test "$xen_pv_domain_build" = "yes" &&
               "which requires Xen support."
 fi
 
+##########################################
+# Windows Hypervisor Platform accelerator (WHPX) check
+if test "$whpx" != "no" ; then
+    cat > $TMPC << EOF
+#include <windows.h>
+#include <winhvplatform.h>
+#include <winhvemulation.h>
+int main(void) {
+    WHV_CAPABILITY whpx_cap;
+    WHvGetCapability(WHvCapabilityCodeFeatures, &whpx_cap, sizeof(whpx_cap));
+    return 0;
+}
+EOF
+    if compile_prog "" "-lwinhvplatform -lwinhvemulation" ; then
+        libs_softmmu="$libs_softmmu -lwinhvplatform -lwinhvemulation"
+        whpx="yes"
+    else
+        if test "$whpx" = "yes"; then
+            feature_not_found "winhvplatform" "winhvemulation is not installed"
+        fi
+        whpx="no"
+    fi
+fi
+
 ##########################################
 # Sparse probe
 if test "$sparse" != "no" ; then
@@ -4522,7 +4568,7 @@ case "$capstone" in
   "" | yes)
     if $pkg_config capstone; then
       capstone=system
-    elif test -e "${source_path}/.git" ; then
+    elif test -e "${source_path}/.git" -a $git_update = 'yes' ; then
       capstone=git
     elif test -e "${source_path}/capstone/Makefile" ; then
       capstone=internal
@@ -4612,6 +4658,21 @@ if compile_prog "" "" ; then
     posix_madvise=yes
 fi
 
+##########################################
+# check if we have posix_memalign()
+
+posix_memalign=no
+cat > $TMPC << EOF
+#include <stdlib.h>
+int main(void) {
+    void *p;
+    return posix_memalign(&p, 8, 8);
+}
+EOF
+if compile_prog "" "" ; then
+    posix_memalign=yes
+fi
+
 ##########################################
 # check if we have posix_syslog
 
@@ -4743,9 +4804,6 @@ if test "$coroutine_pool" = ""; then
 fi
 
 if test "$debug_stack_usage" = "yes"; then
-  if test "$cpu" = "ia64" -o "$cpu" = "hppa"; then
-    error_exit "stack usage debugging is not supported for $cpu"
-  fi
   if test "$coroutine_pool" = "yes"; then
     echo "WARN: disabling coroutine pool for stack usage debugging"
     coroutine_pool=no
@@ -4957,6 +5015,50 @@ if compile_prog "" "" ; then
   atomic64=yes
 fi
 
+########################################
+# See if 16-byte vector operations are supported.
+# Even without a vector unit the compiler may expand these.
+# There is a bug in old GCC for PPC that crashes here.
+# Unfortunately it's the system compiler for Centos 7.
+
+cat > $TMPC << EOF
+typedef unsigned char U1 __attribute__((vector_size(16)));
+typedef unsigned short U2 __attribute__((vector_size(16)));
+typedef unsigned int U4 __attribute__((vector_size(16)));
+typedef unsigned long long U8 __attribute__((vector_size(16)));
+typedef signed char S1 __attribute__((vector_size(16)));
+typedef signed short S2 __attribute__((vector_size(16)));
+typedef signed int S4 __attribute__((vector_size(16)));
+typedef signed long long S8 __attribute__((vector_size(16)));
+static U1 a1, b1;
+static U2 a2, b2;
+static U4 a4, b4;
+static U8 a8, b8;
+static S1 c1;
+static S2 c2;
+static S4 c4;
+static S8 c8;
+static int i;
+int main(void)
+{
+  a1 += b1; a2 += b2; a4 += b4; a8 += b8;
+  a1 -= b1; a2 -= b2; a4 -= b4; a8 -= b8;
+  a1 *= b1; a2 *= b2; a4 *= b4; a8 *= b8;
+  a1 &= b1; a2 &= b2; a4 &= b4; a8 &= b8;
+  a1 |= b1; a2 |= b2; a4 |= b4; a8 |= b8;
+  a1 ^= b1; a2 ^= b2; a4 ^= b4; a8 ^= b8;
+  a1 <<= i; a2 <<= i; a4 <<= i; a8 <<= i;
+  a1 >>= i; a2 >>= i; a4 >>= i; a8 >>= i;
+  c1 >>= i; c2 >>= i; c4 >>= i; c8 >>= i;
+  return 0;
+}
+EOF
+
+vector16=no
+if compile_prog "" "" ; then
+  vector16=yes
+fi
+
 ########################################
 # check if getauxval is available.
 
@@ -5204,10 +5306,46 @@ if compile_prog "" "" ; then
     have_utmpx=yes
 fi
 
+##########################################
+# checks for sanitizers
+
+write_c_skeleton
+
+have_asan=no
+have_ubsan=no
+have_asan_iface_h=no
+have_asan_iface_fiber=no
+
+if test "$sanitizers" = "yes" ; then
+  if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
+      have_asan=yes
+  fi
+  if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
+      have_ubsan=yes
+  fi
+
+  if check_include "sanitizer/asan_interface.h" ; then
+      have_asan_iface_h=yes
+  fi
+
+  cat > $TMPC << EOF
+#include <sanitizer/asan_interface.h>
+int main(void) {
+  __sanitizer_start_switch_fiber(0, 0, 0);
+  return 0;
+}
+EOF
+  if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
+      have_asan_iface_fiber=yes
+  fi
+fi
+
 ##########################################
 # End of CC checks
 # After here, no more $cc or $ld runs
 
+write_c_skeleton
+
 if test "$gcov" = "yes" ; then
   CFLAGS="-fprofile-arcs -ftest-coverage -g $CFLAGS"
   LDFLAGS="-fprofile-arcs -ftest-coverage $LDFLAGS"
@@ -5228,6 +5366,20 @@ else
     CFLAGS="-O2 $CFLAGS"
 fi
 
+if test "$have_asan" = "yes"; then
+  CFLAGS="-fsanitize=address $CFLAGS"
+  if test "$have_asan_iface_h" = "no" ; then
+      echo "ASAN build enabled, but ASAN header missing." \
+           "Without code annotation, the report may be inferior."
+  elif test "$have_asan_iface_fiber" = "no" ; then
+      echo "ASAN build enabled, but ASAN header is too old." \
+           "Without code annotation, the report may be inferior."
+  fi
+fi
+if test "$have_ubsan" = "yes"; then
+  CFLAGS="-fsanitize=undefined $CFLAGS"
+fi
+
 ##########################################
 # Do we have libnfs
 if test "$libnfs" != "no" ; then
@@ -5596,6 +5748,7 @@ echo "Install blobs     $blobs"
 echo "KVM support       $kvm"
 echo "HAX support       $hax"
 echo "HVF support       $hvf"
+echo "WHPX support      $whpx"
 echo "TCG support       $tcg"
 if test "$tcg" = "yes" ; then
     echo "TCG debug enabled $debug_tcg"
@@ -5608,6 +5761,7 @@ echo "preadv support    $preadv"
 echo "fdatasync         $fdatasync"
 echo "madvise           $madvise"
 echo "posix_madvise     $posix_madvise"
+echo "posix_memalign    $posix_memalign"
 echo "libcap-ng support $cap_ng"
 echo "vhost-net support $vhost_net"
 echo "vhost-scsi support $vhost_scsi"
@@ -5763,7 +5917,7 @@ if test "$mingw32" = "yes" ; then
     echo "CONFIG_QGA_NTDDDISK=y" >> $config_host_mak
   fi
   if test "$guest_agent_msi" = "yes"; then
-    echo "QEMU_GA_MSI_ENABLED=yes" >> $config_host_mak  
+    echo "QEMU_GA_MSI_ENABLED=yes" >> $config_host_mak
     echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
     echo "QEMU_GA_MSI_WITH_VSS=${QEMU_GA_MSI_WITH_VSS}" >> $config_host_mak
     echo "QEMU_GA_MSI_ARCH=${QEMU_GA_MSI_ARCH}" >> $config_host_mak
@@ -6094,6 +6248,9 @@ fi
 if test "$posix_madvise" = "yes" ; then
   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
 fi
+if test "$posix_memalign" = "yes" ; then
+  echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
+fi
 
 if test "$spice" = "yes" ; then
   echo "CONFIG_SPICE=y" >> $config_host_mak
@@ -6211,6 +6368,10 @@ if test "$valgrind_h" = "yes" ; then
   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
 fi
 
+if test "$have_asan_iface_fiber" = "yes" ; then
+    echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
+fi
+
 if test "$has_environ" = "yes" ; then
   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
 fi
@@ -6231,6 +6392,10 @@ if test "$atomic64" = "yes" ; then
   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
 fi
 
+if test "$vector16" = "yes" ; then
+  echo "CONFIG_VECTOR16=y" >> $config_host_mak
+fi
+
 if test "$getauxval" = "yes" ; then
   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
 fi
@@ -6633,6 +6798,7 @@ case "$target_name" in
     echo "TARGET_ABI32=y" >> $config_target_mak
   ;;
   s390x)
+    mttcg=yes
     gdb_xml_files="s390x-core64.xml s390-acr.xml s390-fpr.xml s390-vx.xml s390-cr.xml s390-virt.xml s390-gs.xml"
   ;;
   tilegx)
@@ -6692,6 +6858,9 @@ fi
 if supported_hvf_target $target; then
     echo "CONFIG_HVF=y" >> $config_target_mak
 fi
+if supported_whpx_target $target; then
+    echo "CONFIG_WHPX=y" >> $config_target_mak
+fi
 if test "$target_bigendian" = "yes" ; then
   echo "TARGET_WORDS_BIGENDIAN=y" >> $config_target_mak
 fi
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