[Qemu-devel] [PATCH v6 05/11] dump: add support for lzo/snappy

[Qiao Nuohan]

kdump-compressed format supports three compression format, zlib/lzo/snappy.
Currently, only zlib is available. This patch is used to support lzo/snappy.
'--enable-lzo/--enable-snappy' is needed to be specified with configure to make
lzo/snappy available for qemu

Signed-off-by: Qiao Nuohan <address@hidden>
---
 configure |   50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 50 insertions(+), 0 deletions(-)

diff --git a/configure b/configure
index edfea95..b7a28b7 100755
--- a/configure
+++ b/configure
@@ -245,6 +245,8 @@ libusb=""
 usb_redir=""
 glx=""
 zlib="yes"
+lzo="no"
+snappy="no"
 guest_agent=""
 guest_agent_with_vss="no"
 vss_win32_sdk=""
@@ -947,6 +949,10 @@ for opt do
   ;;
   --disable-zlib-test) zlib="no"
   ;;
+  --enable-lzo) lzo="yes"
+  ;;
+  --enable-snappy) snappy="yes"
+  ;;
   --enable-guest-agent) guest_agent="yes"
   ;;
   --disable-guest-agent) guest_agent="no"
@@ -1538,6 +1544,42 @@ fi
 libs_softmmu="$libs_softmmu -lz"
 
 ##########################################
+# lzo check
+
+if test "$lzo" != "no" ; then
+    cat > $TMPC << EOF
+#include <lzo/lzo1x.h>
+int main(void) { lzo_version(); return 0; }
+EOF
+    if compile_prog "" "-llzo2" ; then
+        :
+    else
+        error_exit "lzo check failed" \
+            "Make sure to have the lzo libs and headers installed."
+    fi
+
+    libs_softmmu="$libs_softmmu -llzo2"
+fi
+
+##########################################
+# snappy check
+
+if test "$snappy" != "no" ; then
+    cat > $TMPC << EOF
+#include <snappy-c.h>
+int main(void) { snappy_max_compressed_length(4096); return 0; }
+EOF
+    if compile_prog "" "-lsnappy" ; then
+        :
+    else
+        error_exit "snappy check failed" \
+            "Make sure to have the snappy libs and headers installed."
+    fi
+
+    libs_softmmu="$libs_softmmu -lsnappy"
+fi
+
+##########################################
 # libseccomp check
 
 if test "$seccomp" != "no" ; then
@@ -4135,6 +4177,14 @@ if test "$glx" = "yes" ; then
   echo "GLX_LIBS=$glx_libs" >> $config_host_mak
 fi
 
+if test "$lzo" = "yes" ; then
+  echo "CONFIG_LZO=y" >> $config_host_mak
+fi
+
+if test "$snappy" = "yes" ; then
+  echo "CONFIG_SNAPPY=y" >> $config_host_mak
+fi
+
 if test "$libiscsi" = "yes" ; then
   echo "CONFIG_LIBISCSI=y" >> $config_host_mak
 fi
-- 
1.7.1