making travis working for both uzfs and kernel

- now we will use ./configure --enable-uzfs=yes to compile
  for uZFS. By default it will compile for kernel.

- fixing make pkg-mod.

- installing gtest for travis and codecov

- adding gitignore for new binaries

.travis.yml

@@ -16,7 +16,14 @@ before_install:
     - sudo apt-get install lcov
     # packages for tests
     - sudo apt-get install --yes -qq parted lsscsi ksh attr acl nfs-kernel-server fio
+    - sudo apt-get install --yes -qq libgtest-dev cmake
 install:
+    - pushd .
+    - cd /usr/src/gtest
+    - sudo cmake CMakeLists.txt
+    - sudo make
+    - sudo cp *.a /usr/lib
+    - popd
     - cd ..
     - git clone https://github.com/zfsonlinux/spl
     - cd spl
@@ -31,10 +38,11 @@ install:
       fi
     - cd ../ZoL
     - sh autogen.sh
-    - ./configure --enable-code-coverage=yes
     - if [ $ZFS_BUILD_TAGS = 0 ]; then
+        ./configure --enable-code-coverage=yes --enable-uzfs=yes;
         make;
       else
+        ./configure --enable-code-coverage=yes;
         make --no-print-directory -s pkg-utils pkg-kmod;
         sudo dpkg -i *.deb;
       fi
@@ -49,4 +57,4 @@ after_failure:
     - find /var/tmp/test_results/current/log -type f -name '*' -printf "%f\n" -exec cut -c -$ZFS_TEST_TRAVIS_LOG_MAX_LENGTH {} \;
 after_success:
     - find /var/tmp/test_results/current/log -type f -name '*' -printf "%f\n" -exec cut -c -$ZFS_TEST_TRAVIS_LOG_MAX_LENGTH {} \;
-    - bash <(curl -s https://codecov.io/bash)
+    - bash <(curl -s https://codecov.io/bash)

cmd/tgt/.gitignore

@@ -0,0 +1 @@
+/tgt

cmd/zfs/Makefile.am

@@ -1,7 +1,5 @@
 include $(top_srcdir)/config/Rules.am
 
-AM_CFLAGS += -D_UZFS
-
 DEFAULT_INCLUDES += \
 	-I$(top_srcdir)/include \
 	-I$(top_srcdir)/lib/libspl/include

cmd/zpool/Makefile.am

@@ -1,7 +1,5 @@
 include $(top_srcdir)/config/Rules.am
 
-AM_CFLAGS += -D_UZFS
-
 DEFAULT_INCLUDES += \
 	-I$(top_srcdir)/include \
 	-I$(top_srcdir)/lib/libspl/include

config/Rules.am

@@ -6,7 +6,7 @@ AM_CFLAGS += ${NO_UNUSED_BUT_SET_VARIABLE}
 AM_CFLAGS += ${NO_BOOL_COMPARE}
 AM_CFLAGS += -fno-strict-aliasing
 AM_CFLAGS += -std=gnu99
-AM_CFLAGS += $(CODE_COVERAGE_CFLAGS)
+AM_CFLAGS += $(CODE_COVERAGE_CFLAGS) $(UZFS_CFLAGS)
 AM_CPPFLAGS  = -D_GNU_SOURCE -D__EXTENSIONS__ -D_REENTRANT
 AM_CPPFLAGS += -D_POSIX_PTHREAD_SEMANTICS -D_FILE_OFFSET_BITS=64
 AM_CPPFLAGS += -D_LARGEFILE64_SOURCE -DHAVE_LARGE_STACKS=1
@@ -15,4 +15,4 @@ AM_CPPFLAGS += -DLIBEXECDIR=\"$(libexecdir)\"
 AM_CPPFLAGS += -DRUNSTATEDIR=\"$(runstatedir)\"
 AM_CPPFLAGS += -DSBINDIR=\"$(sbindir)\"
 AM_CPPFLAGS += -DSYSCONFDIR=\"$(sysconfdir)\"
-AM_CPPFLAGS += $(CODE_COVERAGE_CPPFLAGS)
+AM_CPPFLAGS += $(CODE_COVERAGE_CPPFLAGS) $(UZFS_CFLAGS)

config/zol-uzfs.m4

@@ -0,0 +1,14 @@
+AC_DEFUN([ZFS_ZOL_UZFS], [
+	AC_ARG_ENABLE(uzfs,
+		AC_HELP_STRING([--enable-uzfs],
+		[create user space binaries [[default: no]]]),
+		[],enable_uzfs=no)
+
+	AS_IF([test "x$enable_uzfs" = xyes],
+	[
+			UZFS_CFLAGS="-D_UZFS -Werror"
+	])
+
+	AC_SUBST(UZFS_CFLAGS)
+	AC_MSG_RESULT([$enable_uzfs])
+])

configure.ac

@@ -57,6 +57,7 @@ ZFS_AC_LICENSE
 ZFS_AC_PACKAGE
 ZFS_AC_CONFIG
 ZFS_AC_DEBUG
+ZFS_ZOL_UZFS
 
 AC_CONFIG_FILES([
 	Makefile

include/Makefile.am

@@ -18,6 +18,8 @@ USER_H = \
 	$(top_srcdir)/include/libuutil.h \
 	$(top_srcdir)/include/libuutil_impl.h \
 	$(top_srcdir)/include/libzfs.h \
+	$(top_srcdir)/include/libuzfs.h \
+	$(top_srcdir)/include/gtest_helper.h \
 	$(top_srcdir)/include/libzfs_core.h \
 	$(top_srcdir)/include/libzfs_impl.h
 

lib/libzfs/Makefile.am

@@ -1,7 +1,5 @@
 include $(top_srcdir)/config/Rules.am
 
-AM_CFLAGS += -D_UZFS
-
 libzfs_pcdir = $(datarootdir)/pkgconfig
 libzfs_pc_DATA = libzfs.pc libzfs_core.pc
 

lib/libzfs_core/Makefile.am

@@ -1,7 +1,5 @@
 include $(top_srcdir)/config/Rules.am
 
-AM_CFLAGS += -D_UZFS
-
 DEFAULT_INCLUDES += \
 	-I$(top_srcdir)/include \
 	-I$(top_srcdir)/lib/libspl/include

tests/cbtest/.gitignore

@@ -0,0 +1 @@
+/test_uzfs