On Wed, Oct 16, 2019 at 01:43:16PM +0100, Anatoly Burakov wrote:
> From: Marcin Baran <marcinx.ba...@intel.com>
>
> The libraries should be maintained using global
> ABI versioning. The changes includes adding global
> ABI version support for both makefile and meson
> build system. Experimental libraries should be
> marked as 0.
>
> Signed-off-by: Marcin Baran <marcinx.ba...@intel.com>
> Signed-off-by: Pawel Modrak <pawelx.mod...@intel.com>
> Signed-off-by: Anatoly Burakov <anatoly.bura...@intel.com>
> ---
Some comments inline below.
/Bruce
> buildtools/meson.build | 2 ++
> config/ABI_VERSION | 1 +
> config/meson.build | 3 ++-
> drivers/meson.build | 20 ++++++++++++++------
> lib/meson.build | 18 +++++++++++++-----
> meson_options.txt | 2 --
> mk/rte.lib.mk | 19 +++++++++++--------
> 7 files changed, 43 insertions(+), 22 deletions(-)
> create mode 100644 config/ABI_VERSION
>
> diff --git a/buildtools/meson.build b/buildtools/meson.build
> index 32c79c1308..78ce69977d 100644
> --- a/buildtools/meson.build
> +++ b/buildtools/meson.build
> @@ -12,3 +12,5 @@ if python3.found()
> else
> map_to_def_cmd = ['meson', 'runpython', files('map_to_def.py')]
> endif
> +
> +is_experimental_cmd = [find_program('grep', 'findstr'), '^DPDK_']
> diff --git a/config/ABI_VERSION b/config/ABI_VERSION
> new file mode 100644
> index 0000000000..9a7c1e503f
> --- /dev/null
> +++ b/config/ABI_VERSION
> @@ -0,0 +1 @@
> +20.0
> diff --git a/config/meson.build b/config/meson.build
> index a27f731f85..25ecf928e4 100644
> --- a/config/meson.build
> +++ b/config/meson.build
> @@ -17,7 +17,8 @@ endforeach
> # set the major version, which might be used by drivers and libraries
> # depending on the configuration options
> pver = meson.project_version().split('.')
> -major_version = '@0@.@1@'.format(pver.get(0), pver.get(1))
> +major_version = run_command(find_program('cat', 'more'),
> + files('ABI_VERSION')).stdout().strip()
>
I wonder if we should rename this to abi_version rather than major_version?
> # extract all version information into the build configuration
> dpdk_conf.set('RTE_VER_YEAR', pver.get(0).to_int())
> diff --git a/drivers/meson.build b/drivers/meson.build
> index 2ed2e95411..5c5fe87c7e 100644
> --- a/drivers/meson.build
> +++ b/drivers/meson.build
> @@ -110,9 +110,20 @@ foreach class:dpdk_driver_classes
> output: out_filename,
> depends: [pmdinfogen, tmp_lib])
>
> - if get_option('per_library_versions')
> - lib_version = '@0@.1'.format(version)
> - so_version = '@0@'.format(version)
> + version_map = '@0@/@1@/@2@_version.map'.format(
> + meson.current_source_dir(),
> + drv_path, lib_name)
> +
> + if is_windows
> + version_map = '\\'.join(version_map.split('/'))
> + endif
Don't think this block should be needed. Windows generally supports using
"/" as a separator, even if traditionally "\" was used.
> +
> + is_experimental = run_command(is_experimental_cmd,
> + files(version_map)).returncode()
> +
> + if is_experimental != 0
> + lib_version = '0.1'
> + so_version = '0'
> else
> lib_version = major_version
> so_version = major_version
> @@ -128,9 +139,6 @@ foreach class:dpdk_driver_classes
> install: true)
>
> # now build the shared driver
> - version_map = '@0@/@1@/@2@_version.map'.format(
> - meson.current_source_dir(),
> - drv_path, lib_name)
> shared_lib = shared_library(lib_name,
> sources,
> objects: objs,
> diff --git a/lib/meson.build b/lib/meson.build
> index e5ff838934..3892c16e8f 100644
> --- a/lib/meson.build
> +++ b/lib/meson.build
> @@ -97,9 +97,19 @@ foreach l:libraries
> cflags += '-DALLOW_EXPERIMENTAL_API'
> endif
>
> - if get_option('per_library_versions')
> - lib_version = '@0@.1'.format(version)
> - so_version = '@0@'.format(version)
> + version_map = '@0@/@1@/rte_@2@_version.map'.format(
> + meson.current_source_dir(), dir_name,
> name)
> +
> + if is_windows
> + version_map = '\\'.join(version_map.split('/'))
> + endif
As above.
> +
> + is_experimental = run_command(is_experimental_cmd,
> + files(version_map)).returncode()
> +
> + if is_experimental != 0
> + lib_version = '0.1'
> + so_version = '0'
> else
> lib_version = major_version
> so_version = major_version
> @@ -120,8 +130,6 @@ foreach l:libraries
> # then use pre-build objects to build shared lib
> sources = []
> objs += static_lib.extract_all_objects(recursive: false)
> - version_map = '@0@/@1@/rte_@2@_version.map'.format(
> - meson.current_source_dir(), dir_name,
> name)
> implib = dir_name + '.dll.a'
>
> def_file = custom_target(name + '_def',
> diff --git a/meson_options.txt b/meson_options.txt
> index 448f3e63dc..000e38fd98 100644
> --- a/meson_options.txt
> +++ b/meson_options.txt
> @@ -28,8 +28,6 @@ option('max_lcores', type: 'integer', value: 128,
> description: 'maximum number of cores/threads supported by EAL')
> option('max_numa_nodes', type: 'integer', value: 4,
> description: 'maximum number of NUMA nodes supported by EAL')
> -option('per_library_versions', type: 'boolean', value: true,
> - description: 'true: each lib gets its own version number, false: DPDK
> version used for each lib')
> option('tests', type: 'boolean', value: true,
> description: 'build unit tests')
> option('use_hpet', type: 'boolean', value: false,
> diff --git a/mk/rte.lib.mk b/mk/rte.lib.mk
> index 4df8849a08..f84161c6d5 100644
> --- a/mk/rte.lib.mk
> +++ b/mk/rte.lib.mk
> @@ -11,20 +11,23 @@ EXTLIB_BUILD ?= n
> # VPATH contains at least SRCDIR
> VPATH += $(SRCDIR)
>
> -ifneq ($(CONFIG_RTE_MAJOR_ABI),)
> -ifneq ($(LIBABIVER),)
> -LIBABIVER := $(CONFIG_RTE_MAJOR_ABI)
> +ifeq ($(OS), Windows_NT)
> +search_cmd = findstr
> +print_cmd = more
> +else
> +search_cmd = grep
> +print_cmd = cat
We don't support make on windows, so no need for using findstr.
> endif
> +
> +ifneq ($(shell $(search_cmd) "^DPDK_" $(SRCDIR)/$(EXPORT_MAP)),)
> +LIBABIVER := $(shell $(print_cmd) $(RTE_SRCDIR)/config/ABI_VERSION)
> +else
> +LIBABIVER := 0
> endif
>
> ifeq ($(CONFIG_RTE_BUILD_SHARED_LIB),y)
> LIB := $(patsubst %.a,%.so.$(LIBABIVER),$(LIB))
> ifeq ($(EXTLIB_BUILD),n)
> -ifeq ($(CONFIG_RTE_MAJOR_ABI),)
> -ifeq ($(CONFIG_RTE_NEXT_ABI),y)
> -LIB := $(LIB).1
> -endif
> -endif
> CPU_LDFLAGS += --version-script=$(SRCDIR)/$(EXPORT_MAP)
> endif
> endif
> --
> 2.17.1
