blockdev: reduce aio_context locked sections in bitmap add/remove

[qemu.git] / configure

diff --git a/configure b/configure
index 362bfef637cc63c3e792ec32fd0c28f7dda27595..714e7fb6a1fbd72ccdcd92b506cedf68b80d8a5c 100755 (executable)
--- a/configure
+++ b/configure
@@ -198,7 +198,7 @@ supported_kvm_target() {
         i386:i386 | i386:x86_64 | i386:x32 | \
         x86_64:i386 | x86_64:x86_64 | x86_64:x32 | \
         mips:mips | mipsel:mips | \
         i386:i386 | i386:x86_64 | i386:x32 | \
         x86_64:i386 | x86_64:x86_64 | x86_64:x32 | \
         mips:mips | mipsel:mips | \

-        ppc:ppc | ppc64:ppc | ppc:ppc64 | ppc64:ppc64 | \
+        ppc:ppc | ppc64:ppc | ppc:ppc64 | ppc64:ppc64 | ppc64:ppc64le | \

         s390x:s390x)
             return 0
         ;;
         s390x:s390x)
             return 0
         ;;


@@ -276,10 +276,15 @@ ld_has() {
     $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
 }
 
     $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
 }
 

-# default parameters
-source_path=$(dirname "$0")

 # make source path absolute
 # make source path absolute

-source_path=$(cd "$source_path"; pwd)
+source_path=$(cd "$(dirname -- "$0")"; pwd)
+
+if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
+then
+  error_exit "main directory cannot contain spaces nor colons"
+fi
+
+# default parameters

 cpu=""
 iasl="iasl"
 interp_prefix="/usr/gnemul/qemu-%M"
 cpu=""
 iasl="iasl"
 interp_prefix="/usr/gnemul/qemu-%M"


@@ -289,6 +294,7 @@ audio_drv_list=""
 block_drv_rw_whitelist=""
 block_drv_ro_whitelist=""
 host_cc="cc"
 block_drv_rw_whitelist=""
 block_drv_ro_whitelist=""
 host_cc="cc"

+libs_cpu=""

 libs_softmmu=""
 libs_tools=""
 audio_pt_int=""
 libs_softmmu=""
 libs_tools=""
 audio_pt_int=""


@@ -317,7 +323,7 @@ else
         echo "to acquire QEMU source archives. Non-GIT builds are only"
         echo "supported with source archives linked from:"
         echo
         echo "to acquire QEMU source archives. Non-GIT builds are only"
         echo "supported with source archives linked from:"
         echo

-        echo "  https://www.qemu.org/download/"
+        echo "  https://www.qemu.org/download/#source"

         echo
         echo "Developers working with GIT can use scripts/archive-source.sh"
         echo "if they need to create valid source archives."
         echo
         echo "Developers working with GIT can use scripts/archive-source.sh"
         echo "if they need to create valid source archives."


@@ -472,7 +478,7 @@ auth_pam=""
 vte=""
 virglrenderer=""
 tpm=""
 vte=""
 virglrenderer=""
 tpm=""

-libssh2=""
+libssh=""

 live_block_migration="yes"
 numa=""
 tcmalloc="no"
 live_block_migration="yes"
 numa=""
 tcmalloc="no"


@@ -502,8 +508,11 @@ cross_cc_arm="arm-linux-gnueabihf-gcc"
 cross_cc_cflags_armeb="-mbig-endian"
 cross_cc_i386="i386-pc-linux-gnu-gcc"
 cross_cc_cflags_i386=""
 cross_cc_cflags_armeb="-mbig-endian"
 cross_cc_i386="i386-pc-linux-gnu-gcc"
 cross_cc_cflags_i386=""

-cross_cc_powerpc="powerpc-linux-gnu-gcc"
-cross_cc_powerpc="powerpc-linux-gnu-gcc"
+cross_cc_ppc="powerpc-linux-gnu-gcc"
+cross_cc_cflags_ppc="-m32"
+cross_cc_ppc64="powerpc-linux-gnu-gcc"
+cross_cc_cflags_ppc64="-m64"
+cross_cc_ppc64le="powerpc64le-linux-gnu-gcc"

 
 enabled_cross_compilers=""
 
 
 enabled_cross_compilers=""
 


@@ -700,7 +709,11 @@ elif check_define __sparc__ ; then
   fi
 elif check_define _ARCH_PPC ; then
   if check_define _ARCH_PPC64 ; then
   fi
 elif check_define _ARCH_PPC ; then
   if check_define _ARCH_PPC64 ; then

-    cpu="ppc64"
+    if check_define _LITTLE_ENDIAN ; then
+      cpu="ppc64le"
+    else
+      cpu="ppc64"
+    fi

   else
     cpu="ppc"
   fi
   else
     cpu="ppc"
   fi


@@ -731,10 +744,14 @@ ARCH=
 # Note that this case should only have supported host CPUs, not guests.
 case "$cpu" in
   ppc|ppc64|s390|s390x|sparc64|x32|riscv32|riscv64)
 # Note that this case should only have supported host CPUs, not guests.
 case "$cpu" in
   ppc|ppc64|s390|s390x|sparc64|x32|riscv32|riscv64)

-    cpu="$cpu"

     supported_cpu="yes"
     eval "cross_cc_${cpu}=\$host_cc"
   ;;
     supported_cpu="yes"
     eval "cross_cc_${cpu}=\$host_cc"
   ;;

+  ppc64le)
+    ARCH="ppc64"
+    supported_cpu="yes"
+    cross_cc_ppc64le=$host_cc
+  ;;

   i386|i486|i586|i686|i86pc|BePC)
     cpu="i386"
     supported_cpu="yes"
   i386|i486|i586|i686|i86pc|BePC)
     cpu="i386"
     supported_cpu="yes"


@@ -899,7 +916,18 @@ fi
 
 : ${make=${MAKE-make}}
 : ${install=${INSTALL-install}}
 
 : ${make=${MAKE-make}}
 : ${install=${INSTALL-install}}

-: ${python=${PYTHON-python}}
+# We prefer python 3.x. A bare 'python' is traditionally
+# python 2.x, but some distros have it as python 3.x, so
+# we check that before python2
+python=
+for binary in "${PYTHON-python3}" python python2
+do
+    if has "$binary"
+    then
+        python="$binary"
+        break
+    fi
+done

 : ${smbd=${SMBD-/usr/sbin/smbd}}
 
 # Default objcc to clang if available, otherwise use CC
 : ${smbd=${SMBD-/usr/sbin/smbd}}
 
 # Default objcc to clang if available, otherwise use CC


@@ -1115,6 +1143,8 @@ for opt do
   ;;
   --disable-slirp) slirp="no"
   ;;
   ;;
   --disable-slirp) slirp="no"
   ;;

+  --enable-slirp=git) slirp="git"
+  ;;

   --enable-slirp=system) slirp="system"
   ;;
   --disable-vde) vde="no"
   --enable-slirp=system) slirp="system"
   ;;
   --disable-vde) vde="no"


@@ -1415,9 +1445,9 @@ for opt do
   ;;
   --enable-tpm) tpm="yes"
   ;;
   ;;
   --enable-tpm) tpm="yes"
   ;;

-  --disable-libssh2) libssh2="no"
+  --disable-libssh) libssh="no"

   ;;
   ;;

-  --enable-libssh2) libssh2="yes"
+  --enable-libssh) libssh="yes"

   ;;
   --disable-live-block-migration) live_block_migration="no"
   ;;
   ;;
   --disable-live-block-migration) live_block_migration="no"
   ;;


@@ -1525,44 +1555,44 @@ case "$cpu" in
     ppc)
            CPU_CFLAGS="-m32"
            LDFLAGS="-m32 $LDFLAGS"
     ppc)
            CPU_CFLAGS="-m32"
            LDFLAGS="-m32 $LDFLAGS"

-           cross_cc_powerpc=$cc
-           cross_cc_cflags_powerpc=$CPU_CFLAGS
+           cross_cc_ppc=$cc
+           cross_cc_cflags_ppc="$CPU_CFLAGS"

            ;;
     ppc64)
            CPU_CFLAGS="-m64"
            LDFLAGS="-m64 $LDFLAGS"
            cross_cc_ppc64=$cc
            ;;
     ppc64)
            CPU_CFLAGS="-m64"
            LDFLAGS="-m64 $LDFLAGS"
            cross_cc_ppc64=$cc

-           cross_cc_cflags_ppc64=$CPU_CFLAGS
+           cross_cc_cflags_ppc64="$CPU_CFLAGS"

            ;;
     sparc)
            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
            LDFLAGS="-m32 -mv8plus $LDFLAGS"
            cross_cc_sparc=$cc
            ;;
     sparc)
            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
            LDFLAGS="-m32 -mv8plus $LDFLAGS"
            cross_cc_sparc=$cc

-           cross_cc_cflags_sparc=$CPU_CFLAGS
+           cross_cc_cflags_sparc="$CPU_CFLAGS"

            ;;
     sparc64)
            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
            LDFLAGS="-m64 $LDFLAGS"
            cross_cc_sparc64=$cc
            ;;
     sparc64)
            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
            LDFLAGS="-m64 $LDFLAGS"
            cross_cc_sparc64=$cc

-           cross_cc_cflags_sparc64=$CPU_CFLAGS
+           cross_cc_cflags_sparc64="$CPU_CFLAGS"

            ;;
     s390)
            CPU_CFLAGS="-m31"
            LDFLAGS="-m31 $LDFLAGS"
            cross_cc_s390=$cc
            ;;
     s390)
            CPU_CFLAGS="-m31"
            LDFLAGS="-m31 $LDFLAGS"
            cross_cc_s390=$cc

-           cross_cc_cflags_s390=$CPU_CFLAGS
+           cross_cc_cflags_s390="$CPU_CFLAGS"

            ;;
     s390x)
            CPU_CFLAGS="-m64"
            LDFLAGS="-m64 $LDFLAGS"
            cross_cc_s390x=$cc
            ;;
     s390x)
            CPU_CFLAGS="-m64"
            LDFLAGS="-m64 $LDFLAGS"
            cross_cc_s390x=$cc

-           cross_cc_cflags_s390x=$CPU_CFLAGS
+           cross_cc_cflags_s390x="$CPU_CFLAGS"

            ;;
     i386)
            CPU_CFLAGS="-m32"
            LDFLAGS="-m32 $LDFLAGS"
            cross_cc_i386=$cc
            ;;
     i386)
            CPU_CFLAGS="-m32"
            LDFLAGS="-m32 $LDFLAGS"
            cross_cc_i386=$cc

-           cross_cc_cflags_i386=$CPU_CFLAGS
+           cross_cc_cflags_i386="$CPU_CFLAGS"

            ;;
     x86_64)
            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
            ;;
     x86_64)
            # ??? Only extremely old AMD cpus do not have cmpxchg16b.


@@ -1571,13 +1601,13 @@ case "$cpu" in
            CPU_CFLAGS="-m64 -mcx16"
            LDFLAGS="-m64 $LDFLAGS"
            cross_cc_x86_64=$cc
            CPU_CFLAGS="-m64 -mcx16"
            LDFLAGS="-m64 $LDFLAGS"
            cross_cc_x86_64=$cc

-           cross_cc_cflags_x86_64=$CPU_CFLAGS
+           cross_cc_cflags_x86_64="$CPU_CFLAGS"

            ;;
     x32)
            CPU_CFLAGS="-mx32"
            LDFLAGS="-mx32 $LDFLAGS"
            cross_cc_i386=$cc
            ;;
     x32)
            CPU_CFLAGS="-mx32"
            LDFLAGS="-mx32 $LDFLAGS"
            cross_cc_i386=$cc

-           cross_cc_cflags_i386=$CPU_CFLAGS
+           cross_cc_cflags_i386="$CPU_CFLAGS"

            ;;
     # No special flags required for other host CPUs
 esac
            ;;
     # No special flags required for other host CPUs
 esac


@@ -1722,7 +1752,7 @@ disabled with --disable-FEATURE, default is enabled if available:
   guest-agent     build the QEMU Guest Agent
   guest-agent-msi build guest agent Windows MSI installation package
   pie             Position Independent Executables
   guest-agent     build the QEMU Guest Agent
   guest-agent-msi build guest agent Windows MSI installation package
   pie             Position Independent Executables

-  modules         modules support
+  modules         modules support (non-Windows)

   debug-tcg       TCG debugging (default is disabled)
   debug-info      debugging information
   sparse          sparse checker
   debug-tcg       TCG debugging (default is disabled)
   debug-info      debugging information
   sparse          sparse checker


@@ -1732,7 +1762,7 @@ disabled with --disable-FEATURE, default is enabled if available:
   gcrypt          libgcrypt cryptography support
   auth-pam        PAM access control
   sdl             SDL UI
   gcrypt          libgcrypt cryptography support
   auth-pam        PAM access control
   sdl             SDL UI

-  sdl_image       SDL Image support for icons
+  sdl-image       SDL Image support for icons

   gtk             gtk UI
   vte             vte support for the gtk UI
   curses          curses UI
   gtk             gtk UI
   vte             vte support for the gtk UI
   curses          curses UI


@@ -1786,7 +1816,7 @@ disabled with --disable-FEATURE, default is enabled if available:
   coroutine-pool  coroutine freelist (better performance)
   glusterfs       GlusterFS backend
   tpm             TPM support
   coroutine-pool  coroutine freelist (better performance)
   glusterfs       GlusterFS backend
   tpm             TPM support

-  libssh2         ssh block device support
+  libssh          ssh block device support

   numa            libnuma support
   libxml2         for Parallels image format
   tcmalloc        tcmalloc support
   numa            libnuma support
   libxml2         for Parallels image format
   tcmalloc        tcmalloc support


@@ -1818,8 +1848,12 @@ EOF
 exit 0
 fi
 
 exit 0
 fi
 

-if ! has $python; then
-  error_exit "Python not found. Use --python=/path/to/python"
+# Remove old dependency files to make sure that they get properly regenerated
+rm -f */config-devices.mak.d
+
+if test -z "$python"
+then
+    error_exit "Python not found. Use --python=/path/to/python"

 fi
 
 # Note that if the Python conditional here evaluates True we will exit
 fi
 
 # Note that if the Python conditional here evaluates True we will exit


@@ -1973,6 +2007,11 @@ else
   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
 fi
 
   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
 fi
 

+# Our module code doesn't support Windows
+if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
+  error_exit "Modules are not available for Windows"
+fi
+

 # Static linking is not possible with modules or PIE
 if test "$static" = "yes" ; then
   if test "$modules" = "yes" ; then
 # Static linking is not possible with modules or PIE
 if test "$static" = "yes" ; then
   if test "$modules" = "yes" ; then


@@ -2371,36 +2410,16 @@ fi
 ##########################################
 # libseccomp check
 
 ##########################################
 # libseccomp check
 

-libseccomp_minver="2.2.0"

 if test "$seccomp" != "no" ; then
 if test "$seccomp" != "no" ; then

-    case "$cpu" in
-    i386|x86_64|mips)
-        ;;
-    arm|aarch64)
-        libseccomp_minver="2.2.3"
-        ;;
-    ppc|ppc64|s390x)
-        libseccomp_minver="2.3.0"
-        ;;
-    *)
-        libseccomp_minver=""
-        ;;
-    esac
-
-    if test "$libseccomp_minver" != "" &&
-       $pkg_config --atleast-version=$libseccomp_minver libseccomp ; then
+    libseccomp_minver="2.3.0"
+    if $pkg_config --atleast-version=$libseccomp_minver libseccomp ; then

         seccomp_cflags="$($pkg_config --cflags libseccomp)"
         seccomp_libs="$($pkg_config --libs libseccomp)"
         seccomp="yes"
     else
         if test "$seccomp" = "yes" ; then
         seccomp_cflags="$($pkg_config --cflags libseccomp)"
         seccomp_libs="$($pkg_config --libs libseccomp)"
         seccomp="yes"
     else
         if test "$seccomp" = "yes" ; then

-            if test "$libseccomp_minver" != "" ; then
-                feature_not_found "libseccomp" \
-                    "Install libseccomp devel >= $libseccomp_minver"
-            else
-                feature_not_found "libseccomp" \
-                    "libseccomp is not supported for host cpu $cpu"
-            fi
+            feature_not_found "libseccomp" \
+                 "Install libseccomp devel >= $libseccomp_minver"

         fi
         seccomp="no"
     fi
         fi
         seccomp="no"
     fi


@@ -2787,17 +2806,23 @@ fi
 # GNUTLS probe
 
 if test "$gnutls" != "no"; then
 # GNUTLS probe
 
 if test "$gnutls" != "no"; then

+    pass="no"

     if $pkg_config --exists "gnutls >= 3.1.18"; then
         gnutls_cflags=$($pkg_config --cflags gnutls)
         gnutls_libs=$($pkg_config --libs gnutls)
     if $pkg_config --exists "gnutls >= 3.1.18"; then
         gnutls_cflags=$($pkg_config --cflags gnutls)
         gnutls_libs=$($pkg_config --libs gnutls)

-        libs_softmmu="$gnutls_libs $libs_softmmu"
-        libs_tools="$gnutls_libs $libs_tools"
-       QEMU_CFLAGS="$QEMU_CFLAGS $gnutls_cflags"
-        gnutls="yes"
-    elif test "$gnutls" = "yes"; then
+        # Packaging for the static libraries is not always correct.
+        # At least ubuntu 18.04 ships only shared libraries.
+        write_c_skeleton
+        if compile_prog "" "$gnutls_libs" ; then
+            LIBS="$gnutls_libs $LIBS"
+            QEMU_CFLAGS="$QEMU_CFLAGS $gnutls_cflags"
+            pass="yes"
+        fi
+    fi
+    if test "$pass" = "no" && test "$gnutls" = "yes"; then

        feature_not_found "gnutls" "Install gnutls devel >= 3.1.18"
     else
        feature_not_found "gnutls" "Install gnutls devel >= 3.1.18"
     else

-        gnutls="no"
+        gnutls="$pass"

     fi
 fi
 
     fi
 fi
 


@@ -2852,43 +2877,52 @@ has_libgcrypt() {
 
 
 if test "$nettle" != "no"; then
 
 
 if test "$nettle" != "no"; then

+    pass="no"

     if $pkg_config --exists "nettle >= 2.7.1"; then
         nettle_cflags=$($pkg_config --cflags nettle)
         nettle_libs=$($pkg_config --libs nettle)
         nettle_version=$($pkg_config --modversion nettle)
     if $pkg_config --exists "nettle >= 2.7.1"; then
         nettle_cflags=$($pkg_config --cflags nettle)
         nettle_libs=$($pkg_config --libs nettle)
         nettle_version=$($pkg_config --modversion nettle)

-        libs_softmmu="$nettle_libs $libs_softmmu"
-        libs_tools="$nettle_libs $libs_tools"
-        QEMU_CFLAGS="$QEMU_CFLAGS $nettle_cflags"
-        nettle="yes"
-
-        if test -z "$gcrypt"; then
-           gcrypt="no"
+        # Link test to make sure the given libraries work (e.g for static).
+        write_c_skeleton
+        if compile_prog "" "$nettle_libs" ; then
+            LIBS="$nettle_libs $LIBS"
+            QEMU_CFLAGS="$QEMU_CFLAGS $nettle_cflags"
+            if test -z "$gcrypt"; then
+               gcrypt="no"
+            fi
+            pass="yes"

         fi
         fi

+    fi
+    if test "$pass" = "no" && test "$nettle" = "yes"; then
+        feature_not_found "nettle" "Install nettle devel >= 2.7.1"

     else
     else

-        if test "$nettle" = "yes"; then
-            feature_not_found "nettle" "Install nettle devel >= 2.7.1"
-        else
-            nettle="no"
-        fi
+        nettle="$pass"

     fi
 fi
 
 if test "$gcrypt" != "no"; then
     fi
 fi
 
 if test "$gcrypt" != "no"; then

+    pass="no"

     if has_libgcrypt; then
         gcrypt_cflags=$(libgcrypt-config --cflags)
         gcrypt_libs=$(libgcrypt-config --libs)
     if has_libgcrypt; then
         gcrypt_cflags=$(libgcrypt-config --cflags)
         gcrypt_libs=$(libgcrypt-config --libs)

-        # Debian has remove -lgpg-error from libgcrypt-config
+        # Debian has removed -lgpg-error from libgcrypt-config

         # as it "spreads unnecessary dependencies" which in
         # turn breaks static builds...
         if test "$static" = "yes"
         then
             gcrypt_libs="$gcrypt_libs -lgpg-error"
         fi
         # as it "spreads unnecessary dependencies" which in
         # turn breaks static builds...
         if test "$static" = "yes"
         then
             gcrypt_libs="$gcrypt_libs -lgpg-error"
         fi

-        libs_softmmu="$gcrypt_libs $libs_softmmu"
-        libs_tools="$gcrypt_libs $libs_tools"
-        QEMU_CFLAGS="$QEMU_CFLAGS $gcrypt_cflags"
-        gcrypt="yes"

 
 

+        # Link test to make sure the given libraries work (e.g for static).
+        write_c_skeleton
+        if compile_prog "" "$gcrypt_libs" ; then
+            LIBS="$gcrypt_libs $LIBS"
+            QEMU_CFLAGS="$QEMU_CFLAGS $gcrypt_cflags"
+            pass="yes"
+        fi
+    fi
+    if test "$pass" = "yes"; then
+        gcrypt="yes"

         cat > $TMPC << EOF
 #include <gcrypt.h>
 int main(void) {
         cat > $TMPC << EOF
 #include <gcrypt.h>
 int main(void) {


@@ -2901,12 +2935,10 @@ EOF
         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
             gcrypt_hmac=yes
         fi
         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
             gcrypt_hmac=yes
         fi

+    elif test "$gcrypt" = "yes"; then
+        feature_not_found "gcrypt" "Install gcrypt devel >= 1.5.0"

     else
     else

-        if test "$gcrypt" = "yes"; then
-            feature_not_found "gcrypt" "Install gcrypt devel >= 1.5.0"
-        else
-            gcrypt="no"
-        fi
+        gcrypt="no"

     fi
 fi
 
     fi
 fi
 


@@ -2940,9 +2972,9 @@ if test "$auth_pam" != "no"; then
 int main(void) {
    const char *service_name = "qemu";
    const char *user = "frank";
 int main(void) {
    const char *service_name = "qemu";
    const char *user = "frank";

-   const struct pam_conv *pam_conv = NULL;
+   const struct pam_conv pam_conv = { 0 };

    pam_handle_t *pamh = NULL;
    pam_handle_t *pamh = NULL;

-   pam_start(service_name, user, pam_conv, &pamh);
+   pam_start(service_name, user, &pam_conv, &pamh);

    return 0;
 }
 EOF
    return 0;
 }
 EOF


@@ -3893,43 +3925,34 @@ EOF
 fi
 
 ##########################################
 fi
 
 ##########################################

-# libssh2 probe
-min_libssh2_version=1.2.8
-if test "$libssh2" != "no" ; then
-  if $pkg_config --atleast-version=$min_libssh2_version libssh2; then
-    libssh2_cflags=$($pkg_config libssh2 --cflags)
-    libssh2_libs=$($pkg_config libssh2 --libs)
-    libssh2=yes
+# libssh probe
+if test "$libssh" != "no" ; then
+  if $pkg_config --exists libssh; then
+    libssh_cflags=$($pkg_config libssh --cflags)
+    libssh_libs=$($pkg_config libssh --libs)
+    libssh=yes

   else
   else

-    if test "$libssh2" = "yes" ; then
-      error_exit "libssh2 >= $min_libssh2_version required for --enable-libssh2"
+    if test "$libssh" = "yes" ; then
+      error_exit "libssh required for --enable-libssh"

     fi
     fi

-    libssh2=no
+    libssh=no

   fi
 fi
 
 ##########################################
   fi
 fi
 
 ##########################################

-# libssh2_sftp_fsync probe
+# Check for libssh 0.8
+# This is done like this instead of using the LIBSSH_VERSION_* and
+# SSH_VERSION_* macros because some distributions in the past shipped
+# snapshots of the future 0.8 from Git, and those snapshots did not
+# have updated version numbers (still referring to 0.7.0).

 
 

-if test "$libssh2" = "yes"; then
+if test "$libssh" = "yes"; then

   cat > $TMPC <<EOF
   cat > $TMPC <<EOF

-#include <stdio.h>
-#include <libssh2.h>
-#include <libssh2_sftp.h>
-int main(void) {
-    LIBSSH2_SESSION *session;
-    LIBSSH2_SFTP *sftp;
-    LIBSSH2_SFTP_HANDLE *sftp_handle;
-    session = libssh2_session_init ();
-    sftp = libssh2_sftp_init (session);
-    sftp_handle = libssh2_sftp_open (sftp, "/", 0, 0);
-    libssh2_sftp_fsync (sftp_handle);
-    return 0;
-}
+#include <libssh/libssh.h>
+int main(void) { return ssh_get_server_publickey(NULL, NULL); }

 EOF
 EOF

-  # libssh2_cflags/libssh2_libs defined in previous test.
-  if compile_prog "$libssh2_cflags" "$libssh2_libs" ; then
-    QEMU_CFLAGS="-DHAS_LIBSSH2_SFTP_FSYNC $QEMU_CFLAGS"
+  if compile_prog "$libssh_cflags" "$libssh_libs"; then
+    libssh_cflags="-DHAVE_LIBSSH_0_8 $libssh_cflags"

   fi
 fi
 
   fi
 fi
 


@@ -4089,6 +4112,13 @@ libs_softmmu="$libs_softmmu $fdt_libs"
 ##########################################
 # opengl probe (for sdl2, gtk, milkymist-tmu2)
 
 ##########################################
 # opengl probe (for sdl2, gtk, milkymist-tmu2)
 

+gbm="no"
+if $pkg_config gbm; then
+    gbm_cflags="$($pkg_config --cflags gbm)"
+    gbm_libs="$($pkg_config --libs gbm)"
+    gbm="yes"
+fi
+

 if test "$opengl" != "no" ; then
   opengl_pkgs="epoxy gbm"
   if $pkg_config $opengl_pkgs; then
 if test "$opengl" != "no" ; then
   opengl_pkgs="epoxy gbm"
   if $pkg_config $opengl_pkgs; then


@@ -5018,12 +5048,12 @@ case "$capstone" in
     else
       LIBCAPSTONE=libcapstone.a
     fi
     else
       LIBCAPSTONE=libcapstone.a
     fi

-    LIBS="-L\$(BUILD_DIR)/capstone -lcapstone $LIBS"
+    libs_cpu="-L\$(BUILD_DIR)/capstone -lcapstone $libs_cpu"

     ;;
 
   system)
     QEMU_CFLAGS="$QEMU_CFLAGS $($pkg_config --cflags capstone)"
     ;;
 
   system)
     QEMU_CFLAGS="$QEMU_CFLAGS $($pkg_config --cflags capstone)"

-    LIBS="$($pkg_config --libs capstone) $LIBS"
+    libs_cpu="$($pkg_config --libs capstone) $libs_cpu"

     ;;
 
   no)
     ;;
 
   no)


@@ -5111,7 +5141,7 @@ fi
 sem_timedwait=no
 cat > $TMPC << EOF
 #include <semaphore.h>
 sem_timedwait=no
 cat > $TMPC << EOF
 #include <semaphore.h>

-int main(void) { return sem_timedwait(0, 0); }
+int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }

 EOF
 if compile_prog "" "" ; then
     sem_timedwait=yes
 EOF
 if compile_prog "" "" ; then
     sem_timedwait=yes


@@ -5805,6 +5835,20 @@ if compile_prog "" "" ; then
     have_utmpx=yes
 fi
 
     have_utmpx=yes
 fi
 

+##########################################
+# check for getrandom()
+
+have_getrandom=no
+cat > $TMPC << EOF
+#include <sys/random.h>
+int main(void) {
+    return getrandom(0, 0, GRND_NONBLOCK);
+}
+EOF
+if compile_prog "" "" ; then
+    have_getrandom=yes
+fi
+

 ##########################################
 # checks for sanitizers
 
 ##########################################
 # checks for sanitizers
 


@@ -5885,6 +5929,8 @@ case "$slirp" in
   "" | yes)
     if $pkg_config slirp; then
       slirp=system
   "" | yes)
     if $pkg_config slirp; then
       slirp=system

+    elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
+      slirp=git

     elif test -e "${source_path}/slirp/Makefile" ; then
       slirp=internal
     elif test -z "$slirp" ; then
     elif test -e "${source_path}/slirp/Makefile" ; then
       slirp=internal
     elif test -z "$slirp" ; then


@@ -5902,7 +5948,10 @@ case "$slirp" in
 esac
 
 case "$slirp" in
 esac
 
 case "$slirp" in

-  internal)
+  git | internal)
+    if test "$slirp" = git; then
+      git_submodules="${git_submodules} slirp"
+    fi

     mkdir -p slirp
     slirp_cflags="-I\$(SRC_PATH)/slirp/src -I\$(BUILD_DIR)/slirp/src"
     slirp_libs="-L\$(BUILD_DIR)/slirp -lslirp"
     mkdir -p slirp
     slirp_cflags="-I\$(SRC_PATH)/slirp/src -I\$(BUILD_DIR)/slirp/src"
     slirp_libs="-L\$(BUILD_DIR)/slirp -lslirp"


@@ -6077,7 +6126,9 @@ fi
 # Probe for guest agent support/options
 
 if [ "$guest_agent" != "no" ]; then
 # Probe for guest agent support/options
 
 if [ "$guest_agent" != "no" ]; then

-  if [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
+  if [ "$softmmu" = no -a "$want_tools" = no ] ; then
+      guest_agent=no
+  elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then

       tools="qemu-ga $tools"
       guest_agent=yes
   elif [ "$guest_agent" != yes ]; then
       tools="qemu-ga $tools"
       guest_agent=yes
   elif [ "$guest_agent" != yes ]; then


@@ -6160,7 +6211,7 @@ if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
         fi
     done
 fi
         fi
     done
 fi

-if test "$cpu" = "ppc64" && test "$targetos" != "Darwin" ; then
+if test "$ARCH" = "ppc64" && test "$targetos" != "Darwin" ; then

   roms="$roms spapr-rtas"
 fi
 
   roms="$roms spapr-rtas"
 fi
 


@@ -6402,9 +6453,7 @@ echo "GlusterFS support $glusterfs"
 echo "gcov              $gcov_tool"
 echo "gcov enabled      $gcov"
 echo "TPM support       $tpm"
 echo "gcov              $gcov_tool"
 echo "gcov enabled      $gcov"
 echo "TPM support       $tpm"

-echo "libssh2 support   $libssh2"
-echo "TPM passthrough   $tpm_passthrough"
-echo "TPM emulator      $tpm_emulator"
+echo "libssh support    $libssh"

 echo "QOM debugging     $qom_cast_debug"
 echo "Live block migration $live_block_migration"
 echo "lzo support       $lzo"
 echo "QOM debugging     $qom_cast_debug"
 echo "Live block migration $live_block_migration"
 echo "lzo support       $lzo"


@@ -6459,6 +6508,14 @@ if test "$supported_os" = "no"; then
     echo "us upstream at [email protected]."
 fi
 
     echo "us upstream at [email protected]."
 fi
 

+# Note that if the Python conditional here evaluates True we will exit
+# with status 1 which is a shell 'false' value.
+if ! $python -c 'import sys; sys.exit(sys.version_info < (3,0))'; then
+  echo
+  echo "warning: Python 2 support is deprecated" >&2
+  echo "warning: Python 3 will be required for building future versions of QEMU" >&2
+fi
+

 config_host_mak="config-host.mak"
 
 echo "# Automatically generated by configure - do not modify" >config-all-disas.mak
 config_host_mak="config-host.mak"
 
 echo "# Automatically generated by configure - do not modify" >config-all-disas.mak


@@ -6486,6 +6543,7 @@ echo "qemu_helperdir=$libexecdir" >> $config_host_mak
 echo "qemu_localedir=$qemu_localedir" >> $config_host_mak
 echo "qemu_icondir=$qemu_icondir" >> $config_host_mak
 echo "qemu_desktopdir=$qemu_desktopdir" >> $config_host_mak
 echo "qemu_localedir=$qemu_localedir" >> $config_host_mak
 echo "qemu_icondir=$qemu_icondir" >> $config_host_mak
 echo "qemu_desktopdir=$qemu_desktopdir" >> $config_host_mak

+echo "libs_cpu=$libs_cpu" >> $config_host_mak

 echo "libs_softmmu=$libs_softmmu" >> $config_host_mak
 echo "GIT=$git" >> $config_host_mak
 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
 echo "libs_softmmu=$libs_softmmu" >> $config_host_mak
 echo "GIT=$git" >> $config_host_mak
 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak


@@ -6565,8 +6623,8 @@ if test "$slirp" != "no"; then
   echo "SLIRP_CFLAGS=$slirp_cflags" >> $config_host_mak
   echo "SLIRP_LIBS=$slirp_libs" >> $config_host_mak
 fi
   echo "SLIRP_CFLAGS=$slirp_cflags" >> $config_host_mak
   echo "SLIRP_LIBS=$slirp_libs" >> $config_host_mak
 fi

-if [ "$slirp" = "internal" ]; then
-    echo "config-host.h: subdir-slirp" >> $config_host_mak
+if [ "$slirp" = "git" -o "$slirp" = "internal" ]; then
+    echo "config-host.h: slirp/all" >> $config_host_mak

 fi
 if test "$vde" = "yes" ; then
   echo "CONFIG_VDE=y" >> $config_host_mak
 fi
 if test "$vde" = "yes" ; then
   echo "CONFIG_VDE=y" >> $config_host_mak


@@ -6933,6 +6991,13 @@ if test "$opengl" = "yes" ; then
   fi
 fi
 
   fi
 fi
 

+if test "$gbm" = "yes" ; then
+    echo "CONFIG_GBM=y" >> $config_host_mak
+    echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
+    echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
+fi
+
+

 if test "$malloc_trim" = "yes" ; then
   echo "CONFIG_MALLOC_TRIM=y" >> $config_host_mak
 fi
 if test "$malloc_trim" = "yes" ; then
   echo "CONFIG_MALLOC_TRIM=y" >> $config_host_mak
 fi


@@ -7090,10 +7155,10 @@ if test "$glusterfs_iocb_has_stat" = "yes" ; then
   echo "CONFIG_GLUSTERFS_IOCB_HAS_STAT=y" >> $config_host_mak
 fi
 
   echo "CONFIG_GLUSTERFS_IOCB_HAS_STAT=y" >> $config_host_mak
 fi
 

-if test "$libssh2" = "yes" ; then
-  echo "CONFIG_LIBSSH2=m" >> $config_host_mak
-  echo "LIBSSH2_CFLAGS=$libssh2_cflags" >> $config_host_mak
-  echo "LIBSSH2_LIBS=$libssh2_libs" >> $config_host_mak
+if test "$libssh" = "yes" ; then
+  echo "CONFIG_LIBSSH=m" >> $config_host_mak
+  echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
+  echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak

 fi
 
 if test "$live_block_migration" = "yes" ; then
 fi
 
 if test "$live_block_migration" = "yes" ; then


@@ -7101,15 +7166,7 @@ if test "$live_block_migration" = "yes" ; then
 fi
 
 if test "$tpm" = "yes"; then
 fi
 
 if test "$tpm" = "yes"; then

-  echo 'CONFIG_TPM=$(CONFIG_SOFTMMU)' >> $config_host_mak
-  # TPM passthrough support?
-  if test "$tpm_passthrough" = "yes"; then
-    echo "CONFIG_TPM_PASSTHROUGH=y" >> $config_host_mak
-  fi
-  # TPM emulator support?
-  if test "$tpm_emulator" = "yes"; then
-    echo "CONFIG_TPM_EMULATOR=y" >> $config_host_mak
-  fi
+  echo 'CONFIG_TPM=y' >> $config_host_mak

 fi
 
 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
 fi
 
 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak


@@ -7187,7 +7244,9 @@ fi
 if test "$have_utmpx" = "yes" ; then
   echo "HAVE_UTMPX=y" >> $config_host_mak
 fi
 if test "$have_utmpx" = "yes" ; then
   echo "HAVE_UTMPX=y" >> $config_host_mak
 fi

-
+if test "$have_getrandom" = "yes" ; then
+  echo "CONFIG_GETRANDOM=y" >> $config_host_mak
+fi

 if test "$ivshmem" = "yes" ; then
   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
 fi
 if test "$ivshmem" = "yes" ; then
   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
 fi


@@ -7345,7 +7404,7 @@ if test "$linux" = "yes" ; then
   i386|x86_64|x32)
     linux_arch=x86
     ;;
   i386|x86_64|x32)
     linux_arch=x86
     ;;

-  ppc|ppc64)
+  ppc|ppc64|ppc64le)

     linux_arch=powerpc
     ;;
   s390x)
     linux_arch=powerpc
     ;;
   s390x)


@@ -7506,7 +7565,8 @@ case "$target_name" in
   ;;
   ppc)
     gdb_xml_files="power-core.xml power-fpu.xml power-altivec.xml power-spe.xml"
   ;;
   ppc)
     gdb_xml_files="power-core.xml power-fpu.xml power-altivec.xml power-spe.xml"

-    target_compiler=$cross_cc_powerpc
+    target_compiler=$cross_cc_ppc
+    target_compiler_cflags="$cross_cc_cflags_ppc"

   ;;
   ppc64)
     TARGET_BASE_ARCH=ppc
   ;;
   ppc64)
     TARGET_BASE_ARCH=ppc


@@ -7514,6 +7574,7 @@ case "$target_name" in
     mttcg=yes
     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
     target_compiler=$cross_cc_ppc64
     mttcg=yes
     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
     target_compiler=$cross_cc_ppc64

+    target_compiler_cflags="$cross_cc_cflags_ppc64"

   ;;
   ppc64le)
     TARGET_ARCH=ppc64
   ;;
   ppc64le)
     TARGET_ARCH=ppc64


@@ -7826,16 +7887,19 @@ echo "QEMU_CFLAGS+=$cflags" >> $config_target_mak
 
 done # for target in $targets
 
 
 done # for target in $targets
 

+echo "PIXMAN_CFLAGS=$pixman_cflags" >> $config_host_mak
+echo "PIXMAN_LIBS=$pixman_libs" >> $config_host_mak
+

 if test -n "$enabled_cross_compilers"; then
     echo
     echo "NOTE: cross-compilers enabled: $enabled_cross_compilers"
 fi
 
 if [ "$fdt" = "git" ]; then
 if test -n "$enabled_cross_compilers"; then
     echo
     echo "NOTE: cross-compilers enabled: $enabled_cross_compilers"
 fi
 
 if [ "$fdt" = "git" ]; then

-  echo "config-host.h: subdir-dtc" >> $config_host_mak
+  echo "config-host.h: dtc/all" >> $config_host_mak

 fi
 if [ "$capstone" = "git" -o "$capstone" = "internal" ]; then
 fi
 if [ "$capstone" = "git" -o "$capstone" = "internal" ]; then

-  echo "config-host.h: subdir-capstone" >> $config_host_mak
+  echo "config-host.h: capstone/all" >> $config_host_mak

 fi
 if test -n "$LIBCAPSTONE"; then
   echo "LIBCAPSTONE=$LIBCAPSTONE" >> $config_host_mak
 fi
 if test -n "$LIBCAPSTONE"; then
   echo "LIBCAPSTONE=$LIBCAPSTONE" >> $config_host_mak


@@ -7880,7 +7944,6 @@ LINKS="$LINKS python"
 for bios_file in \
     $source_path/pc-bios/*.bin \
     $source_path/pc-bios/*.lid \
 for bios_file in \
     $source_path/pc-bios/*.bin \
     $source_path/pc-bios/*.lid \

-    $source_path/pc-bios/*.aml \

     $source_path/pc-bios/*.rom \
     $source_path/pc-bios/*.dtb \
     $source_path/pc-bios/*.img \
     $source_path/pc-bios/*.rom \
     $source_path/pc-bios/*.dtb \
     $source_path/pc-bios/*.img \