linux-kernel and linux kernel modules ABI tools.

The following changes have been implemented:
    1. A new tool "abi-checker" has been created. The tool allows:
       - compare two Module.symvers files.
       - reports which symbols are new, changed or have been removed.
       - create dump all kernel symbols that are present in external kernel
         module.

    2. linux-3.10.spec has been updated to check changes in kernel ABI/API.
       In case if any change kernel installation process aborts. In such case
       user is requested to update kernel version and update ABI dump file.
       ABI dump file should be located in "abi-checker/data" directory.

    3. Output rpm with uImage has been extended by ABI dump. Default location for
       the file is /boot/abi/_kernel_version_.

    4. New output rpm package is build - "abi-tools". The package delivers ABI-checker.
       By default the rpm install ABI-checker tool into /usr/local/bin directory.

Change-Id: I37a2a52f64fde915cff24aa85349aa1dbee3a5b8
Signed-off-by: Jacek Pielaszkiewicz <j.pielaszkie@samsung.com>

1 files changed, 106 insertions, 19 deletions

diff --git a/packaging/linux-kernel.spec b/packaging/linux-kernel.spec
index 5e644415990..e199f9bfbaf 100644
--- a/packaging/linux-kernel.spec
+++ b/packaging/linux-kernel.spec
@@ -1,5 +1,6 @@
+%bcond_with abidev
 %define config_name tizen_defconfig
-%define abiver current
+%define abiver 1
 %define build_id %{config_name}.%{abiver}
 
 Name: linux-kernel
@@ -12,7 +13,12 @@ Vendor: The Linux Community
 URL: http://www.kernel.org
 Source0:   %{name}-%{version}-%{build_id}.tar.gz
 BuildRoot: %{_tmppath}/%{name}-%{PACKAGE_VERSION}-root
+
+BuildRequires: pkgconfig(glib-2.0)
+BuildRequires: pkgconfig(libelf)
+
 BuildRequires: linux-glibc-devel
+BuildRequires: u-boot-tools
 BuildRequires: bc
 
 %define kernel_build_dir_name .%{name}-%{version}-%{build_id}
@@ -21,6 +27,15 @@ BuildRequires: bc
 %description
 The Linux Kernel, the operating system core itself
 
+%if %{with abidev}
+%package abi-dev
+Summary: Header files for the Linux kernel for use by glibc
+Group: Development/System
+
+%description abi-dev
+The package provide linux kernel API/ABI development file.
+%endif
+
 %package headers
 Summary: Header files for the Linux kernel for use by glibc
 Group: Development/System
@@ -29,11 +44,18 @@ Provides: kernel-headers = %{version}
 
 %description headers
 Kernel-headers includes the C header files that specify the interface
-between the Linux kernel and userspace libraries and programs.  The
+between the Linux kernel and userspace libraries and programs. The
 header files define structures and constants that are needed for
 building most standard programs and are also needed for rebuilding the
 glibc package.
 
+%package abi-tools
+Summary: Kernael ABI tools
+Group: Development/System
+
+%description abi-tools
+The package provide set of tools to test and create ABI/API dumps.
+
 %package sources
 Summary: Full linux kernel sources for out-of-tree modules
 Group: Development/System
@@ -50,10 +72,20 @@ Requires: kernel-sources = %{version}-%{build_id}
 %description build
 Prebuilt linux kernel for out-of-tree modules.
 
+%package uImage
+Summary: Linux kernel image
+Group: Development/System
+
+%description uImage
+Linux kernel uImage
+
 %prep
 %setup -q
 
 %build
+# 0. Build abi checker
+make -C abi-checker/src
+
 # 1. Create main build directory
 rm -rf %{kernel_build_dir}
 mkdir -p %{kernel_build_dir}
@@ -68,6 +100,15 @@ mkdir -p %{kernel_build_dir}/linux-kernel-build-%{version}-%{build_id}
 make EXTRAVERSION="-%{build_id}" O=%{kernel_build_dir}/linux-kernel-build-%{version}-%{build_id} %{config_name}
 make EXTRAVERSION="-%{build_id}" O=%{kernel_build_dir}/linux-kernel-build-%{version}-%{build_id} %{?_smp_mflags}
 
+# 4.1 Test ABI/API kernel change
+%if %{with abidev}
+echo "No linuks kernel ABI/API checks"
+%else
+( cd abi-checker/src; chmod 755 build_api_kernel_checker.sh; ./build_api_kernel_checker.sh "%{version}" "%{abiver}" )
+%endif
+
+make EXTRAVERSION="-%{build_id}" O=%{kernel_build_dir}/linux-kernel-build-%{version}-%{build_id} uImage %{?jobs:-j%jobs}
+
 # 5. Update Makefile in output build
 cat %{kernel_build_dir}/linux-kernel-build-%{version}-%{build_id}/Makefile | sed 's/\/home\/abuild\/rpmbuild\/BUILD\/%{name}-%{version}/\/usr\/src\/linux-kernel-sources-%{version}-%{build_id}/' > %{kernel_build_dir}/linux-kernel-build-%{version}-%{build_id}/Makefile.new
 mv %{kernel_build_dir}/linux-kernel-build-%{version}-%{build_id}/Makefile.new %{kernel_build_dir}/linux-kernel-build-%{version}-%{build_id}/Makefile
@@ -82,32 +123,63 @@ QA_SKIP_BUILD_ROOT="DO_NOT_WANT"; export QA_SKIP_BUILD_ROOT
 # 1. Destynation directories
 mkdir -p %{buildroot}/usr/src/linux-kernel-sources-%{version}-%{build_id}
 mkdir -p %{buildroot}/usr/src/linux-kernel-build-%{version}-%{build_id}
+mkdir -p %{buildroot}/boot/abi/
+mkdir -p %{buildroot}/usr/local/bin
 
-# 2. Restore source and build irectory
+# 2. Install uImage
+cp %{kernel_build_dir}/linux-kernel-build-%{version}-%{build_id}/arch/arm/boot/uImage %{buildroot}/boot/
+
+# 3. Restore source and build irectory
 tar -xf %{kernel_build_dir}/linux-kernel-sources-%{version}-%{build_id}.tar -C %{buildroot}/usr/src/linux-kernel-sources-%{version}-%{build_id}
 tar -xf %{kernel_build_dir}/linux-kernel-build-%{version}-%{build_id}.tar   -C %{buildroot}/usr/src/linux-kernel-build-%{version}-%{build_id}
 
-# 3. Install kernel headers
+# 4. Install kernel headers
+make INSTALL_PATH=%{buildroot}/boot INSTALL_MOD_PATH=%{buildroot} O=%{kernel_build_dir}/linux-kernel-build-%{version}-%{build_id} install
 make INSTALL_PATH=%{buildroot} INSTALL_MOD_PATH=%{buildroot} O=%{kernel_build_dir}/linux-kernel-build-%{version}-%{build_id} INSTALL_HDR_PATH=%{buildroot}/usr headers_install
 
-# 4. Remove files
-find %{buildroot}/usr/src/linux-kernel-build-%{version}-%{build_id} -name ".tmp_vmlinux1" -exec rm -f {} +
-find %{buildroot}/usr/src/linux-kernel-build-%{version}-%{build_id} -name ".tmp_vmlinux2" -exec rm -f {} +
-find %{buildroot}/usr/src/linux-kernel-build-%{version}-%{build_id} -name "vmlinux" -exec rm -f {} +
-find %{buildroot}/usr/src/linux-kernel-sources-%{version}-%{build_id} -name "*.c" -exec rm -f {} +
-find %{buildroot}/usr/src/linux-kernel-build-%{version}-%{build_id} -name "*.cmd" -exec rm -f {} +
-find %{buildroot}/usr/src/linux-kernel-build-%{version}-%{build_id} -name "*\.o" -exec rm -f {} +
-find %{buildroot}/usr -name "..install.cmd" -exec rm -f {} +
-
-find %{buildroot}/usr/include -name "\.\.install.cmd"  -exec rm -f {} +
-find %{buildroot}/usr/include -name "\.install"  -exec rm -f {} +
+# 4.1 Install ABI/API tools
+cp abi-checker/src/abi-checker %{buildroot}/usr/local/bin
+
+# 4.2 Install abi_%{version} file
+%if %{with abidev}
+find ../.. -name "Module.symvers" -exec cp {} %{buildroot}/boot/abi/abi_devel \;
+%else
+cp abi-checker/data/abi* %{buildroot}/boot/abi/.
+ln -sf /boot/abi/abi_%{version}_%{abiver} %{buildroot}/boot/abi/current
+%endif
+
+# 5. Remove files
+find %{buildroot}/usr/src/linux-kernel-build-%{version}-%{build_id} -name ".tmp_vmlinux1" -exec rm -f {} \;
+find %{buildroot}/usr/src/linux-kernel-build-%{version}-%{build_id} -name ".tmp_vmlinux2" -exec rm -f {} \;
+find %{buildroot}/usr/src/linux-kernel-build-%{version}-%{build_id} -name "vmlinux" -exec rm -f {} \;
+find %{buildroot}/usr/src/linux-kernel-build-%{version}-%{build_id} -name "uImage" -exec rm -f {} \;
+find %{buildroot}/usr/src/linux-kernel-build-%{version}-%{build_id} -name "zImage" -exec rm -f {} \;
+find %{buildroot}/usr/src/linux-kernel-build-%{version}-%{build_id} -name "*.cmd" -exec rm -f {} \;
+find %{buildroot}/usr/src/linux-kernel-build-%{version}-%{build_id} -name "*\.o" -exec rm -f {} \;
+find %{buildroot}/usr/src/linux-kernel-build-%{version}-%{build_id} -name "\.*dtb*tmp" -exec rm -f {} \;
+find %{buildroot}/usr/src/linux-kernel-build-%{version}-%{build_id} -name "*\.*tmp" -exec rm -f {} \;
+find %{buildroot}/usr/src/linux-kernel-build-%{version}-%{build_id} -name "*\.c" -exec rm -f {} \;
+find %{buildroot}/usr/src/linux-kernel-build-%{version}-%{build_id} -name "*\.S" -exec rm -f {} \;
+find %{buildroot}/usr/src/linux-kernel-build-%{version}-%{build_id} -name "*\.ko" -exec rm -f {} \;
+
+find %{buildroot}/usr/src/linux-kernel-sources-%{version}-%{build_id} -name "*.c" -exec rm -f {} \;
+
+find %{buildroot}/usr -name "\.\.install.cmd"  -exec rm -f {} \;
+find %{buildroot}/usr -name "\.install"  -exec rm -f {} \;
 
 rm -rf %{buildroot}/usr/src/linux-kernel-sources-%{version}-%{build_id}/%{kernel_build_dir_name}
-rm -f %{buildroot}/usr/src/linux-kernel-sources-%{version}-%{build_id}/source
-rm -f %{buildroot}/usr/src/linux-kernel-build-%{version}-%{build_id}/source
-rm -f %{buildroot}/System.map-3.10.0 %{buildroot}/vmlinux-3.10.0
+rm -f  %{buildroot}/usr/src/linux-kernel-sources-%{version}-%{build_id}/source
+rm -f  %{buildroot}/usr/src/linux-kernel-build-%{version}-%{build_id}/source
+
+rm -rf %{buildroot}/usr/src/linux-kernel-sources-%{version}-%{build_id}/abi-checker
 
-# 5. Create symbolic links
+rm -rf %{buildroot}/System.map*
+rm -rf %{buildroot}/vmlinux*
+
+rm -rf %{buildroot}/boot/System.map*
+rm -rf %{buildroot}/boot/vmlinux*
+
+# 6. Create symbolic links
 ln -sf /usr/src/linux-kernel-sources-%{version}-%{build_id} %{buildroot}/usr/src/linux-kernel-build-%{version}-%{build_id}/source
 
 %clean
@@ -124,3 +196,18 @@ rm -rf %{buildroot}
 %files build
 %defattr (-, root, root)
 /usr/src/linux-kernel-build-%{version}-%{build_id}
+
+%files uImage
+%if %{without abidev}
+/boot/
+%else
+/boot/uImage
+%endif
+
+%files abi-tools
+/usr/local/bin
+
+%if %{with abidev}
+%files abi-dev
+/boot/abi
+%endif