From: Marcin Baran <marcinx.ba...@intel.com>

As per new ABI policy, all of the libraries are now versioned using
one global ABI version. Changes in this patch implement the
necessary steps to enable that.

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>
Acked-by: Bruce Richardson <bruce.richard...@intel.com>
---

Notes:
    v6:
    - Silenced grep error message on trying to grep a directory
    
    v3:
    - Removed Windows support from Makefile changes
    - Removed unneeded path conversions from meson files

 buildtools/meson.build |  2 ++
 config/ABI_VERSION     |  1 +
 config/meson.build     |  4 +++-
 drivers/meson.build    | 20 ++++++++++++--------
 lib/meson.build        | 18 ++++++++++++------
 meson_options.txt      |  2 --
 mk/rte.lib.mk          | 13 ++++---------
 7 files changed, 34 insertions(+), 26 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 2b1cb92e7e..30aa2a5313 100644
--- a/config/meson.build
+++ b/config/meson.build
@@ -18,6 +18,8 @@ endforeach
 # depending on the configuration options
 pver = meson.project_version().split('.')
 major_version = '@0@.@1@'.format(pver.get(0), pver.get(1))
+abi_version = run_command(find_program('cat', 'more'),
+       files('ABI_VERSION')).stdout().strip()
 
 # extract all version information into the build configuration
 dpdk_conf.set('RTE_VER_YEAR', pver.get(0).to_int())
@@ -37,7 +39,7 @@ endif
 
 pmd_subdir_opt = get_option('drivers_install_subdir')
 if pmd_subdir_opt.contains('<VERSION>')
-       pmd_subdir_opt = major_version.join(pmd_subdir_opt.split('<VERSION>'))
+       pmd_subdir_opt = abi_version.join(pmd_subdir_opt.split('<VERSION>'))
 endif
 driver_install_path = join_paths(get_option('libdir'), pmd_subdir_opt)
 eal_pmd_path = join_paths(get_option('prefix'), driver_install_path)
diff --git a/drivers/meson.build b/drivers/meson.build
index 156d2dc717..b03e0c3159 100644
--- a/drivers/meson.build
+++ b/drivers/meson.build
@@ -124,12 +124,19 @@ 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)
+
+                       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
+                               lib_version = abi_version
+                               so_version = abi_version
                        endif
 
                        # now build the static driver
@@ -142,9 +149,6 @@ 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 b2ec9c09a9..3cff2482b1 100644
--- a/lib/meson.build
+++ b/lib/meson.build
@@ -106,12 +106,18 @@ foreach l:libraries
                                cflags += '-DRTE_USE_FUNCTION_VERSIONING'
                        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)
+
+                       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
+                               lib_version = abi_version
+                               so_version = abi_version
                        endif
 
                        # first build static lib
@@ -127,7 +133,7 @@ foreach l:libraries
                                        dependencies: static_deps)
 
                        if not use_function_versioning
-                               # use pre-build objects to build shared lib
+                               # then use pre-build objects to build shared lib
                                sources = []
                                objs += 
static_lib.extract_all_objects(recursive: false)
                        else
diff --git a/meson_options.txt b/meson_options.txt
index 89650b0e9c..da6a7f0302 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -30,8 +30,6 @@ 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..b49af9192b 100644
--- a/mk/rte.lib.mk
+++ b/mk/rte.lib.mk
@@ -11,20 +11,15 @@ EXTLIB_BUILD ?= n
 # VPATH contains at least SRCDIR
 VPATH += $(SRCDIR)
 
-ifneq ($(CONFIG_RTE_MAJOR_ABI),)
-ifneq ($(LIBABIVER),)
-LIBABIVER := $(CONFIG_RTE_MAJOR_ABI)
-endif
+ifneq ($(shell grep -s "^DPDK_" $(SRCDIR)/$(EXPORT_MAP)),)
+LIBABIVER := $(shell cat $(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

Reply via email to