[2/4] build: use version number from config file

Message ID 20190307115448.54041-3-bruce.richardson@intel.com
State Superseded, archived
Delegated to: Thomas Monjalon
Headers show
Series
  • One versionfile to rule them all...
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Context Check Description
ci/Intel-compilation success Compilation OK
ci/checkpatch success coding style OK

Commit Message

Bruce Richardson March 7, 2019, 11:54 a.m.
Since we have the version number in a separate file at the root level,
we should not need to duplicate this in rte_version.h too. Best
approach here is to move the macros for specifying the year/month/etc.
parts from the version header file to the build config file - leaving
the other utility macros for e.g. printing the version string, where they
are.

For make this is done by having a little bit of awk parse the version
file and pass the results through to the preprocessor for the config
generation stage.

For meson, this is done by parsing the version and adding it to the
standard dpdk_conf object.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
---
 DPDK_VERSION                                |  2 +-
 config/common_base                          | 14 +++++++++
 config/rte_config.h                         |  5 ++++
 lib/librte_eal/common/include/rte_version.h | 32 ---------------------
 meson.build                                 | 14 +++++++++
 mk/rte.sdkconfig.mk                         |  2 ++
 6 files changed, 36 insertions(+), 33 deletions(-)

Comments

David Marchand March 7, 2019, 12:37 p.m. | #1
On Thu, Mar 7, 2019 at 12:55 PM Bruce Richardson <bruce.richardson@intel.com>
wrote:

> Since we have the version number in a separate file at the root level,
> we should not need to duplicate this in rte_version.h too. Best
> approach here is to move the macros for specifying the year/month/etc.
> parts from the version header file to the build config file - leaving
> the other utility macros for e.g. printing the version string, where they
> are.
>
> For make this is done by having a little bit of awk parse the version
> file and pass the results through to the preprocessor for the config
> generation stage.
>
> For meson, this is done by parsing the version and adding it to the
> standard dpdk_conf object.
>
> Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
> ---
>  DPDK_VERSION                                |  2 +-
>  config/common_base                          | 14 +++++++++
>  config/rte_config.h                         |  5 ++++
>  lib/librte_eal/common/include/rte_version.h | 32 ---------------------
>  meson.build                                 | 14 +++++++++
>  mk/rte.sdkconfig.mk                         |  2 ++
>  6 files changed, 36 insertions(+), 33 deletions(-)
>
> diff --git a/DPDK_VERSION b/DPDK_VERSION
> index c4a4cd00b..e013b54dd 100644
> --- a/DPDK_VERSION
> +++ b/DPDK_VERSION
> @@ -1 +1 @@
> -19.05.0-rc0
> +19.05.1
>

Might be a bit early for the stable while the 19.05 is still being cooked
:-)


diff --git a/config/common_base b/config/common_base
> index 0b09a9348..6292bc4af 100644
> --- a/config/common_base
> +++ b/config/common_base
> @@ -1,6 +1,20 @@
>  # SPDX-License-Identifier: BSD-3-Clause
>  # Copyright(c) 2010-2017 Intel Corporation
>
> +#
> +# String that appears before the version number
> +#
> +CONFIG_RTE_VER_PREFIX="DPDK"
> +
> +#
> +# Version information completed when this file is processed for a build
> +#
> +CONFIG_RTE_VER_YEAR=__YEAR
> +CONFIG_RTE_VER_MONTH=__MONTH
> +CONFIG_RTE_VER_MINOR=__MINOR
> +CONFIG_RTE_VER_SUFFIX=__SUFFIX
> +CONFIG_RTE_VER_RELEASE=__RELEASE
> +
>

?
I think you broke make support.

== Build lib/librte_eal/linuxapp/eal
  CC eal.o
In file included from
/home/dmarchan/git/pub/dpdk/lib/librte_eal/linuxapp/eal/eal.c:49:0:
/home/dmarchan/git/pub/dpdk/master/include/rte_version.h: In function
‘rte_version’:
/home/dmarchan/git/pub/dpdk/master/include/rte_version.h:47:13: error:
‘RTE_VER_SUFFIX’ undeclared (first use in this function)
  if (strlen(RTE_VER_SUFFIX) == 0)
             ^
/home/dmarchan/git/pub/dpdk/master/include/rte_version.h:47:13: note: each
undeclared identifier is reported only once for each function it appears in
/home/dmarchan/git/pub/dpdk/master/include/rte_version.h:49:4: error:
‘RTE_VER_PREFIX’ undeclared (first use in this function)
    RTE_VER_PREFIX,
    ^
/home/dmarchan/git/pub/dpdk/master/include/rte_version.h:50:4: error:
‘RTE_VER_YEAR’ undeclared (first use in this function)
    RTE_VER_YEAR,
    ^
/home/dmarchan/git/pub/dpdk/master/include/rte_version.h:51:4: error:
‘RTE_VER_MONTH’ undeclared (first use in this function)
    RTE_VER_MONTH,
    ^
/home/dmarchan/git/pub/dpdk/master/include/rte_version.h:52:4: error:
‘RTE_VER_MINOR’ undeclared (first use in this function)
    RTE_VER_MINOR);
    ^
/home/dmarchan/git/pub/dpdk/master/include/rte_version.h:60:4: error:
‘RTE_VER_RELEASE’ undeclared (first use in this function)
    RTE_VER_RELEASE);
    ^
make[5]: *** [eal.o] Error 1
make[4]: *** [eal] Error 2
make[3]: *** [linuxapp] Error 2
make[2]: *** [librte_eal] Error 2
make[1]: *** [lib] Error 2
make: *** [all] Error 2



 #
>  # define executive environment
>  # RTE_EXEC_ENV values are the directories in mk/exec-env/
> diff --git a/config/rte_config.h b/config/rte_config.h
> index 7606f5d7b..5f1749dbb 100644
> --- a/config/rte_config.h
> +++ b/config/rte_config.h
> @@ -18,6 +18,11 @@
>
>  #include <rte_build_config.h>
>
> +/**
> + * String that appears before the version number
> + */
> +#define RTE_VER_PREFIX "DPDK"
> +
>  /****** library defines ********/
>
>  /* compat defines */
> diff --git a/lib/librte_eal/common/include/rte_version.h
> b/lib/librte_eal/common/include/rte_version.h
> index a7eed7ab7..50867ea81 100644
> --- a/lib/librte_eal/common/include/rte_version.h
> +++ b/lib/librte_eal/common/include/rte_version.h
> @@ -19,38 +19,6 @@ extern "C" {
>  #include <stdio.h>
>  #include <rte_common.h>
>
> -/**
> - * String that appears before the version number
> - */
> -#define RTE_VER_PREFIX "DPDK"
> -
> -/**
> - * Major version/year number i.e. the yy in yy.mm.z
> - */
> -#define RTE_VER_YEAR 19
> -
> -/**
> - * Minor version/month number i.e. the mm in yy.mm.z
> - */
> -#define RTE_VER_MONTH 5
> -
> -/**
> - * Patch level number i.e. the z in yy.mm.z
> - */
> -#define RTE_VER_MINOR 0
> -
> -/**
> - * Extra string to be appended to version number
> - */
> -#define RTE_VER_SUFFIX "-rc"
> -
> -/**
> - * Patch release number
> - *   0-15 = release candidates
> - *   16   = release
> - */
> -#define RTE_VER_RELEASE 0
> -
>  /**
>   * Macro to compute a version number usable for comparisons
>   */
> diff --git a/meson.build b/meson.build
> index 757618144..9d5320395 100644
> --- a/meson.build
> +++ b/meson.build
> @@ -22,6 +22,20 @@ dpdk_app_link_libraries = []
>  pver = meson.project_version().split('.')
>  major_version = '@0@.@1@'.format(pver.get(0), pver.get(1))
>
> +# extract all version information into the build configuration
> +dpdk_conf.set('RTE_VER_YEAR', pver.get(0))
> +dpdk_conf.set('RTE_VER_MONTH', pver.get(1))
> +if pver.get(2).contains('-rc')
> +       rc_ver = pver.get(2).split('-rc')
> +       dpdk_conf.set('RTE_VER_MINOR', rc_ver.get(0))
> +       dpdk_conf.set_quoted('RTE_VER_SUFFIX', '-rc')
> +       dpdk_conf.set('RTE_VER_RELEASE', rc_ver.get(1))
> +else
> +       dpdk_conf.set('RTE_VER_MINOR', pver.get(2))
> +       dpdk_conf.set_quoted('RTE_VER_SUFFIX', '')
> +       dpdk_conf.set('RTE_VER_RELEASE', 0)
> +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>'))
> diff --git a/mk/rte.sdkconfig.mk b/mk/rte.sdkconfig.mk
> index 8dc31d7cf..bbfa24dee 100644
> --- a/mk/rte.sdkconfig.mk
> +++ b/mk/rte.sdkconfig.mk
> @@ -76,6 +76,8 @@ else
>  $(RTE_OUTPUT)/.config: $(RTE_CONFIG_TEMPLATE) FORCE | $(RTE_OUTPUT)
>         $(Q)if [ "$(RTE_CONFIG_TEMPLATE)" != "" -a -f
> "$(RTE_CONFIG_TEMPLATE)" ]; then \
>                 $(CPP) -undef -P -x assembler-with-cpp \
> +               `cat $(RTE_SRCDIR)/DPDK_VERSION | sed -e 's/-rc/.-rc./' | \
> +               awk -F '.' '{print "-D__YEAR="$$1, "-D__MONTH="$$2,
> "-D__MINOR="$$3, "-D__SUFFIX=\""$$4"\"", "-D__RELEASE="int($$5)}'` \
>

Can't we just pass the RTE_VER_XXX as CFLAGS here ?

                -ffreestanding \
>                 -o $(RTE_OUTPUT)/.config_tmp $(RTE_CONFIG_TEMPLATE) ; \
>                 config=$$(cat $(RTE_OUTPUT)/.config_tmp) ; \
> --
> 2.20.1
>
>
David Marchand March 7, 2019, 12:42 p.m. | #2
On Thu, Mar 7, 2019 at 1:37 PM David Marchand <david.marchand@redhat.com>
wrote:

>
>
> On Thu, Mar 7, 2019 at 12:55 PM Bruce Richardson <
> bruce.richardson@intel.com> wrote:
>
>> Since we have the version number in a separate file at the root level,
>> we should not need to duplicate this in rte_version.h too. Best
>> approach here is to move the macros for specifying the year/month/etc.
>> parts from the version header file to the build config file - leaving
>> the other utility macros for e.g. printing the version string, where they
>> are.
>>
>> For make this is done by having a little bit of awk parse the version
>> file and pass the results through to the preprocessor for the config
>> generation stage.
>>
>> For meson, this is done by parsing the version and adding it to the
>> standard dpdk_conf object.
>>
>> Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
>> ---
>>  DPDK_VERSION                                |  2 +-
>>  config/common_base                          | 14 +++++++++
>>  config/rte_config.h                         |  5 ++++
>>  lib/librte_eal/common/include/rte_version.h | 32 ---------------------
>>  meson.build                                 | 14 +++++++++
>>  mk/rte.sdkconfig.mk                         |  2 ++
>>  6 files changed, 36 insertions(+), 33 deletions(-)
>>
>> diff --git a/DPDK_VERSION b/DPDK_VERSION
>> index c4a4cd00b..e013b54dd 100644
>> --- a/DPDK_VERSION
>> +++ b/DPDK_VERSION
>> @@ -1 +1 @@
>> -19.05.0-rc0
>> +19.05.1
>>
>
> Might be a bit early for the stable while the 19.05 is still being cooked
> :-)
>
>
> diff --git a/config/common_base b/config/common_base
>> index 0b09a9348..6292bc4af 100644
>> --- a/config/common_base
>> +++ b/config/common_base
>> @@ -1,6 +1,20 @@
>>  # SPDX-License-Identifier: BSD-3-Clause
>>  # Copyright(c) 2010-2017 Intel Corporation
>>
>> +#
>> +# String that appears before the version number
>> +#
>> +CONFIG_RTE_VER_PREFIX="DPDK"
>> +
>> +#
>> +# Version information completed when this file is processed for a build
>> +#
>> +CONFIG_RTE_VER_YEAR=__YEAR
>> +CONFIG_RTE_VER_MONTH=__MONTH
>> +CONFIG_RTE_VER_MINOR=__MINOR
>> +CONFIG_RTE_VER_SUFFIX=__SUFFIX
>> +CONFIG_RTE_VER_RELEASE=__RELEASE
>> +
>>
>
> ?
> I think you broke make support.
>
> == Build lib/librte_eal/linuxapp/eal
>   CC eal.o
> In file included from
> /home/dmarchan/git/pub/dpdk/lib/librte_eal/linuxapp/eal/eal.c:49:0:
> /home/dmarchan/git/pub/dpdk/master/include/rte_version.h: In function
> ‘rte_version’:
> /home/dmarchan/git/pub/dpdk/master/include/rte_version.h:47:13: error:
> ‘RTE_VER_SUFFIX’ undeclared (first use in this function)
>   if (strlen(RTE_VER_SUFFIX) == 0)
>              ^
> /home/dmarchan/git/pub/dpdk/master/include/rte_version.h:47:13: note: each
> undeclared identifier is reported only once for each function it appears in
> /home/dmarchan/git/pub/dpdk/master/include/rte_version.h:49:4: error:
> ‘RTE_VER_PREFIX’ undeclared (first use in this function)
>     RTE_VER_PREFIX,
>     ^
> /home/dmarchan/git/pub/dpdk/master/include/rte_version.h:50:4: error:
> ‘RTE_VER_YEAR’ undeclared (first use in this function)
>     RTE_VER_YEAR,
>     ^
> /home/dmarchan/git/pub/dpdk/master/include/rte_version.h:51:4: error:
> ‘RTE_VER_MONTH’ undeclared (first use in this function)
>     RTE_VER_MONTH,
>     ^
> /home/dmarchan/git/pub/dpdk/master/include/rte_version.h:52:4: error:
> ‘RTE_VER_MINOR’ undeclared (first use in this function)
>     RTE_VER_MINOR);
>     ^
> /home/dmarchan/git/pub/dpdk/master/include/rte_version.h:60:4: error:
> ‘RTE_VER_RELEASE’ undeclared (first use in this function)
>     RTE_VER_RELEASE);
>     ^
> make[5]: *** [eal.o] Error 1
> make[4]: *** [eal] Error 2
> make[3]: *** [linuxapp] Error 2
> make[2]: *** [librte_eal] Error 2
> make[1]: *** [lib] Error 2
> make: *** [all] Error 2
>
>
>
>  #
>>  # define executive environment
>>  # RTE_EXEC_ENV values are the directories in mk/exec-env/
>> diff --git a/config/rte_config.h b/config/rte_config.h
>> index 7606f5d7b..5f1749dbb 100644
>> --- a/config/rte_config.h
>> +++ b/config/rte_config.h
>> @@ -18,6 +18,11 @@
>>
>>  #include <rte_build_config.h>
>>
>> +/**
>> + * String that appears before the version number
>> + */
>> +#define RTE_VER_PREFIX "DPDK"
>> +
>>  /****** library defines ********/
>>
>>  /* compat defines */
>> diff --git a/lib/librte_eal/common/include/rte_version.h
>> b/lib/librte_eal/common/include/rte_version.h
>> index a7eed7ab7..50867ea81 100644
>> --- a/lib/librte_eal/common/include/rte_version.h
>> +++ b/lib/librte_eal/common/include/rte_version.h
>> @@ -19,38 +19,6 @@ extern "C" {
>>  #include <stdio.h>
>>  #include <rte_common.h>
>>
>> -/**
>> - * String that appears before the version number
>> - */
>> -#define RTE_VER_PREFIX "DPDK"
>> -
>> -/**
>> - * Major version/year number i.e. the yy in yy.mm.z
>> - */
>> -#define RTE_VER_YEAR 19
>> -
>> -/**
>> - * Minor version/month number i.e. the mm in yy.mm.z
>> - */
>> -#define RTE_VER_MONTH 5
>> -
>> -/**
>> - * Patch level number i.e. the z in yy.mm.z
>> - */
>> -#define RTE_VER_MINOR 0
>> -
>> -/**
>> - * Extra string to be appended to version number
>> - */
>> -#define RTE_VER_SUFFIX "-rc"
>> -
>> -/**
>> - * Patch release number
>> - *   0-15 = release candidates
>> - *   16   = release
>> - */
>> -#define RTE_VER_RELEASE 0
>> -
>>  /**
>>   * Macro to compute a version number usable for comparisons
>>   */
>> diff --git a/meson.build b/meson.build
>> index 757618144..9d5320395 100644
>> --- a/meson.build
>> +++ b/meson.build
>> @@ -22,6 +22,20 @@ dpdk_app_link_libraries = []
>>  pver = meson.project_version().split('.')
>>  major_version = '@0@.@1@'.format(pver.get(0), pver.get(1))
>>
>> +# extract all version information into the build configuration
>> +dpdk_conf.set('RTE_VER_YEAR', pver.get(0))
>> +dpdk_conf.set('RTE_VER_MONTH', pver.get(1))
>> +if pver.get(2).contains('-rc')
>> +       rc_ver = pver.get(2).split('-rc')
>> +       dpdk_conf.set('RTE_VER_MINOR', rc_ver.get(0))
>> +       dpdk_conf.set_quoted('RTE_VER_SUFFIX', '-rc')
>> +       dpdk_conf.set('RTE_VER_RELEASE', rc_ver.get(1))
>> +else
>> +       dpdk_conf.set('RTE_VER_MINOR', pver.get(2))
>> +       dpdk_conf.set_quoted('RTE_VER_SUFFIX', '')
>> +       dpdk_conf.set('RTE_VER_RELEASE', 0)
>> +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>'))
>> diff --git a/mk/rte.sdkconfig.mk b/mk/rte.sdkconfig.mk
>> index 8dc31d7cf..bbfa24dee 100644
>> --- a/mk/rte.sdkconfig.mk
>> +++ b/mk/rte.sdkconfig.mk
>> @@ -76,6 +76,8 @@ else
>>  $(RTE_OUTPUT)/.config: $(RTE_CONFIG_TEMPLATE) FORCE | $(RTE_OUTPUT)
>>         $(Q)if [ "$(RTE_CONFIG_TEMPLATE)" != "" -a -f
>> "$(RTE_CONFIG_TEMPLATE)" ]; then \
>>                 $(CPP) -undef -P -x assembler-with-cpp \
>> +               `cat $(RTE_SRCDIR)/DPDK_VERSION | sed -e 's/-rc/.-rc./' |
>> \
>> +               awk -F '.' '{print "-D__YEAR="$$1, "-D__MONTH="$$2,
>> "-D__MINOR="$$3, "-D__SUFFIX=\""$$4"\"", "-D__RELEASE="int($$5)}'` \
>>
>
> Can't we just pass the RTE_VER_XXX as CFLAGS here ?
>

Argh no, I mean passing RTE_VER_XXX as global CFLAGS.
I am not really a fan of having the version in the config file, but I have
no real argument against it.
Bruce Richardson March 7, 2019, 1:01 p.m. | #3
On Thu, Mar 07, 2019 at 01:37:08PM +0100, David Marchand wrote:
>    On Thu, Mar 7, 2019 at 12:55 PM Bruce Richardson
>    <[1]bruce.richardson@intel.com> wrote:
> 
>      Since we have the version number in a separate file at the root
>      level,
>      we should not need to duplicate this in rte_version.h too. Best
>      approach here is to move the macros for specifying the
>      year/month/etc.
>      parts from the version header file to the build config file -
>      leaving
>      the other utility macros for e.g. printing the version string, where
>      they
>      are.
>      For make this is done by having a little bit of awk parse the
>      version
>      file and pass the results through to the preprocessor for the config
>      generation stage.
>      For meson, this is done by parsing the version and adding it to the
>      standard dpdk_conf object.
>      Signed-off-by: Bruce Richardson <[2]bruce.richardson@intel.com>
>      ---
>       DPDK_VERSION                                |  2 +-
>       config/common_base                          | 14 +++++++++
>       config/rte_config.h                         |  5 ++++
>       lib/librte_eal/common/include/rte_version.h | 32
>      ---------------------
>       meson.build                                 | 14 +++++++++
>       mk/[3]rte.sdkconfig.mk                         |  2 ++
>       6 files changed, 36 insertions(+), 33 deletions(-)
>      diff --git a/DPDK_VERSION b/DPDK_VERSION
>      index c4a4cd00b..e013b54dd 100644
>      --- a/DPDK_VERSION
>      +++ b/DPDK_VERSION
>      @@ -1 +1 @@
>      -19.05.0-rc0
>      +19.05.1
> 
>    Might be a bit early for the stable while the 19.05 is still being
>    cooked :-)
> 
Oops, didn't realise that testing change had crept in.

>      diff --git a/config/common_base b/config/common_base
>      index 0b09a9348..6292bc4af 100644
>      --- a/config/common_base
>      +++ b/config/common_base
>      @@ -1,6 +1,20 @@
>       # SPDX-License-Identifier: BSD-3-Clause
>       # Copyright(c) 2010-2017 Intel Corporation
>      +#
>      +# String that appears before the version number
>      +#
>      +CONFIG_RTE_VER_PREFIX="DPDK"
>      +
>      +#
>      +# Version information completed when this file is processed for a
>      build
>      +#
>      +CONFIG_RTE_VER_YEAR=__YEAR
>      +CONFIG_RTE_VER_MONTH=__MONTH
>      +CONFIG_RTE_VER_MINOR=__MINOR
>      +CONFIG_RTE_VER_SUFFIX=__SUFFIX
>      +CONFIG_RTE_VER_RELEASE=__RELEASE
>      +
> 
>    ?
>    I think you broke make support.

Well, yes and no. It should be fine if you remove the build directory and
recreate it, as the code for generating the build config has changed.

/Bruce
Bruce Richardson March 7, 2019, 1:12 p.m. | #4
On Thu, Mar 07, 2019 at 01:42:36PM +0100, David Marchand wrote:
>    On Thu, Mar 7, 2019 at 1:37 PM David Marchand
>    <[1]david.marchand@redhat.com> wrote:
> 
>    On Thu, Mar 7, 2019 at 12:55 PM Bruce Richardson
>    <[2]bruce.richardson@intel.com> wrote:
> 
>      Since we have the version number in a separate file at the root
>      level,
>      we should not need to duplicate this in rte_version.h too. Best
>      approach here is to move the macros for specifying the
>      year/month/etc.
>      parts from the version header file to the build config file -
>      leaving
>      the other utility macros for e.g. printing the version string, where
>      they
>      are.
>      For make this is done by having a little bit of awk parse the
>      version
>      file and pass the results through to the preprocessor for the config
>      generation stage.
>      For meson, this is done by parsing the version and adding it to the
>      standard dpdk_conf object.
>      Signed-off-by: Bruce Richardson <[3]bruce.richardson@intel.com>
>      ---
>       DPDK_VERSION                                |  2 +-
>       config/common_base                          | 14 +++++++++
>       config/rte_config.h                         |  5 ++++
>       lib/librte_eal/common/include/rte_version.h | 32
>      ---------------------
>       meson.build                                 | 14 +++++++++
>       mk/[4]rte.sdkconfig.mk                         |  2 ++
>       6 files changed, 36 insertions(+), 33 deletions(-)
>      diff --git a/DPDK_VERSION b/DPDK_VERSION
>      index c4a4cd00b..e013b54dd 100644
>      --- a/DPDK_VERSION
>      +++ b/DPDK_VERSION
>      @@ -1 +1 @@
>      -19.05.0-rc0
>      +19.05.1
> 
>    Might be a bit early for the stable while the 19.05 is still being
>    cooked :-)
> 
>      diff --git a/config/common_base b/config/common_base
>      index 0b09a9348..6292bc4af 100644
>      --- a/config/common_base
>      +++ b/config/common_base
>      @@ -1,6 +1,20 @@
>       # SPDX-License-Identifier: BSD-3-Clause
>       # Copyright(c) 2010-2017 Intel Corporation
>      +#
>      +# String that appears before the version number
>      +#
>      +CONFIG_RTE_VER_PREFIX="DPDK"
>      +
>      +#
>      +# Version information completed when this file is processed for a
>      build
>      +#
>      +CONFIG_RTE_VER_YEAR=__YEAR
>      +CONFIG_RTE_VER_MONTH=__MONTH
>      +CONFIG_RTE_VER_MINOR=__MINOR
>      +CONFIG_RTE_VER_SUFFIX=__SUFFIX
>      +CONFIG_RTE_VER_RELEASE=__RELEASE
>      +
> 
>    ?
>    I think you broke make support.
>    == Build lib/librte_eal/linuxapp/eal
>      CC eal.o
>    In file included from
>    /home/dmarchan/git/pub/dpdk/lib/librte_eal/linuxapp/eal/eal.c:49:0:
>    /home/dmarchan/git/pub/dpdk/master/include/rte_version.h: In function
>    ‘rte_version’:
>    /home/dmarchan/git/pub/dpdk/master/include/rte_version.h:47:13: error:
>    ‘RTE_VER_SUFFIX’ undeclared (first use in this function)
>      if (strlen(RTE_VER_SUFFIX) == 0)
>                 ^
>    /home/dmarchan/git/pub/dpdk/master/include/rte_version.h:47:13: note:
>    each undeclared identifier is reported only once for each function it
>    appears in
>    /home/dmarchan/git/pub/dpdk/master/include/rte_version.h:49:4: error:
>    ‘RTE_VER_PREFIX’ undeclared (first use in this function)
>        RTE_VER_PREFIX,
>        ^
>    /home/dmarchan/git/pub/dpdk/master/include/rte_version.h:50:4: error:
>    ‘RTE_VER_YEAR’ undeclared (first use in this function)
>        RTE_VER_YEAR,
>        ^
>    /home/dmarchan/git/pub/dpdk/master/include/rte_version.h:51:4: error:
>    ‘RTE_VER_MONTH’ undeclared (first use in this function)
>        RTE_VER_MONTH,
>        ^
>    /home/dmarchan/git/pub/dpdk/master/include/rte_version.h:52:4: error:
>    ‘RTE_VER_MINOR’ undeclared (first use in this function)
>        RTE_VER_MINOR);
>        ^
>    /home/dmarchan/git/pub/dpdk/master/include/rte_version.h:60:4: error:
>    ‘RTE_VER_RELEASE’ undeclared (first use in this function)
>        RTE_VER_RELEASE);
>        ^
>    make[5]: *** [eal.o] Error 1
>    make[4]: *** [eal] Error 2
>    make[3]: *** [linuxapp] Error 2
>    make[2]: *** [librte_eal] Error 2
>    make[1]: *** [lib] Error 2
>    make: *** [all] Error 2
> 
>       #
>       # define executive environment
>       # RTE_EXEC_ENV values are the directories in mk/exec-env/
>      diff --git a/config/rte_config.h b/config/rte_config.h
>      index 7606f5d7b..5f1749dbb 100644
>      --- a/config/rte_config.h
>      +++ b/config/rte_config.h
>      @@ -18,6 +18,11 @@
>       #include <rte_build_config.h>
>      +/**
>      + * String that appears before the version number
>      + */
>      +#define RTE_VER_PREFIX "DPDK"
>      +
>       /****** library defines ********/
>       /* compat defines */
>      diff --git a/lib/librte_eal/common/include/rte_version.h
>      b/lib/librte_eal/common/include/rte_version.h
>      index a7eed7ab7..50867ea81 100644
>      --- a/lib/librte_eal/common/include/rte_version.h
>      +++ b/lib/librte_eal/common/include/rte_version.h
>      @@ -19,38 +19,6 @@ extern "C" {
>       #include <stdio.h>
>       #include <rte_common.h>
>      -/**
>      - * String that appears before the version number
>      - */
>      -#define RTE_VER_PREFIX "DPDK"
>      -
>      -/**
>      - * Major version/year number i.e. the yy in yy.mm.z
>      - */
>      -#define RTE_VER_YEAR 19
>      -
>      -/**
>      - * Minor version/month number i.e. the mm in yy.mm.z
>      - */
>      -#define RTE_VER_MONTH 5
>      -
>      -/**
>      - * Patch level number i.e. the z in yy.mm.z
>      - */
>      -#define RTE_VER_MINOR 0
>      -
>      -/**
>      - * Extra string to be appended to version number
>      - */
>      -#define RTE_VER_SUFFIX "-rc"
>      -
>      -/**
>      - * Patch release number
>      - *   0-15 = release candidates
>      - *   16   = release
>      - */
>      -#define RTE_VER_RELEASE 0
>      -
>       /**
>        * Macro to compute a version number usable for comparisons
>        */
>      diff --git a/meson.build b/meson.build
>      index 757618144..9d5320395 100644
>      --- a/meson.build
>      +++ b/meson.build
>      @@ -22,6 +22,20 @@ dpdk_app_link_libraries = []
>       pver = meson.project_version().split('.')
>       major_version = '@0@.@1@'.format(pver.get(0), pver.get(1))
>      +# extract all version information into the build configuration
>      +dpdk_conf.set('RTE_VER_YEAR', pver.get(0))
>      +dpdk_conf.set('RTE_VER_MONTH', pver.get(1))
>      +if pver.get(2).contains('-rc')
>      +       rc_ver = pver.get(2).split('-rc')
>      +       dpdk_conf.set('RTE_VER_MINOR', rc_ver.get(0))
>      +       dpdk_conf.set_quoted('RTE_VER_SUFFIX', '-rc')
>      +       dpdk_conf.set('RTE_VER_RELEASE', rc_ver.get(1))
>      +else
>      +       dpdk_conf.set('RTE_VER_MINOR', pver.get(2))
>      +       dpdk_conf.set_quoted('RTE_VER_SUFFIX', '')
>      +       dpdk_conf.set('RTE_VER_RELEASE', 0)
>      +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>'))
>      diff --git a/mk/[5]rte.sdkconfig.mk b/mk/[6]rte.sdkconfig.mk
>      index 8dc31d7cf..bbfa24dee 100644
>      --- a/mk/[7]rte.sdkconfig.mk
>      +++ b/mk/[8]rte.sdkconfig.mk
>      @@ -76,6 +76,8 @@ else
>       $(RTE_OUTPUT)/.config: $(RTE_CONFIG_TEMPLATE) FORCE | $(RTE_OUTPUT)
>              $(Q)if [ "$(RTE_CONFIG_TEMPLATE)" != "" -a -f
>      "$(RTE_CONFIG_TEMPLATE)" ]; then \
>                      $(CPP) -undef -P -x assembler-with-cpp \
>      +               `cat $(RTE_SRCDIR)/DPDK_VERSION | sed -e
>      's/-rc/.-rc./' | \
>      +               awk -F '.' '{print "-D__YEAR="$$1, "-D__MONTH="$$2,
>      "-D__MINOR="$$3, "-D__SUFFIX=\""$$4"\"", "-D__RELEASE="int($$5)}'` \
> 
>    Can't we just pass the RTE_VER_XXX as CFLAGS here ?
> 
>    Argh no, I mean passing RTE_VER_XXX as global CFLAGS.
>    I am not really a fan of having the version in the config file, but I
>    have no real argument against it.
>    --

We could do that, but that makes things more awkward for consumers as they
need to pass those same flags when compiling up their application. Better
to have them placed in the header file along with the other defines.

/Bruce

Patch

diff --git a/DPDK_VERSION b/DPDK_VERSION
index c4a4cd00b..e013b54dd 100644
--- a/DPDK_VERSION
+++ b/DPDK_VERSION
@@ -1 +1 @@ 
-19.05.0-rc0
+19.05.1
diff --git a/config/common_base b/config/common_base
index 0b09a9348..6292bc4af 100644
--- a/config/common_base
+++ b/config/common_base
@@ -1,6 +1,20 @@ 
 # SPDX-License-Identifier: BSD-3-Clause
 # Copyright(c) 2010-2017 Intel Corporation
 
+#
+# String that appears before the version number
+#
+CONFIG_RTE_VER_PREFIX="DPDK"
+
+#
+# Version information completed when this file is processed for a build
+#
+CONFIG_RTE_VER_YEAR=__YEAR
+CONFIG_RTE_VER_MONTH=__MONTH
+CONFIG_RTE_VER_MINOR=__MINOR
+CONFIG_RTE_VER_SUFFIX=__SUFFIX
+CONFIG_RTE_VER_RELEASE=__RELEASE
+
 #
 # define executive environment
 # RTE_EXEC_ENV values are the directories in mk/exec-env/
diff --git a/config/rte_config.h b/config/rte_config.h
index 7606f5d7b..5f1749dbb 100644
--- a/config/rte_config.h
+++ b/config/rte_config.h
@@ -18,6 +18,11 @@ 
 
 #include <rte_build_config.h>
 
+/**
+ * String that appears before the version number
+ */
+#define RTE_VER_PREFIX "DPDK"
+
 /****** library defines ********/
 
 /* compat defines */
diff --git a/lib/librte_eal/common/include/rte_version.h b/lib/librte_eal/common/include/rte_version.h
index a7eed7ab7..50867ea81 100644
--- a/lib/librte_eal/common/include/rte_version.h
+++ b/lib/librte_eal/common/include/rte_version.h
@@ -19,38 +19,6 @@  extern "C" {
 #include <stdio.h>
 #include <rte_common.h>
 
-/**
- * String that appears before the version number
- */
-#define RTE_VER_PREFIX "DPDK"
-
-/**
- * Major version/year number i.e. the yy in yy.mm.z
- */
-#define RTE_VER_YEAR 19
-
-/**
- * Minor version/month number i.e. the mm in yy.mm.z
- */
-#define RTE_VER_MONTH 5
-
-/**
- * Patch level number i.e. the z in yy.mm.z
- */
-#define RTE_VER_MINOR 0
-
-/**
- * Extra string to be appended to version number
- */
-#define RTE_VER_SUFFIX "-rc"
-
-/**
- * Patch release number
- *   0-15 = release candidates
- *   16   = release
- */
-#define RTE_VER_RELEASE 0
-
 /**
  * Macro to compute a version number usable for comparisons
  */
diff --git a/meson.build b/meson.build
index 757618144..9d5320395 100644
--- a/meson.build
+++ b/meson.build
@@ -22,6 +22,20 @@  dpdk_app_link_libraries = []
 pver = meson.project_version().split('.')
 major_version = '@0@.@1@'.format(pver.get(0), pver.get(1))
 
+# extract all version information into the build configuration
+dpdk_conf.set('RTE_VER_YEAR', pver.get(0))
+dpdk_conf.set('RTE_VER_MONTH', pver.get(1))
+if pver.get(2).contains('-rc')
+	rc_ver = pver.get(2).split('-rc')
+	dpdk_conf.set('RTE_VER_MINOR', rc_ver.get(0))
+	dpdk_conf.set_quoted('RTE_VER_SUFFIX', '-rc')
+	dpdk_conf.set('RTE_VER_RELEASE', rc_ver.get(1))
+else
+	dpdk_conf.set('RTE_VER_MINOR', pver.get(2))
+	dpdk_conf.set_quoted('RTE_VER_SUFFIX', '')
+	dpdk_conf.set('RTE_VER_RELEASE', 0)
+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>'))
diff --git a/mk/rte.sdkconfig.mk b/mk/rte.sdkconfig.mk
index 8dc31d7cf..bbfa24dee 100644
--- a/mk/rte.sdkconfig.mk
+++ b/mk/rte.sdkconfig.mk
@@ -76,6 +76,8 @@  else
 $(RTE_OUTPUT)/.config: $(RTE_CONFIG_TEMPLATE) FORCE | $(RTE_OUTPUT)
 	$(Q)if [ "$(RTE_CONFIG_TEMPLATE)" != "" -a -f "$(RTE_CONFIG_TEMPLATE)" ]; then \
 		$(CPP) -undef -P -x assembler-with-cpp \
+		`cat $(RTE_SRCDIR)/DPDK_VERSION | sed -e 's/-rc/.-rc./' | \
+		awk -F '.' '{print "-D__YEAR="$$1, "-D__MONTH="$$2, "-D__MINOR="$$3, "-D__SUFFIX=\""$$4"\"", "-D__RELEASE="int($$5)}'` \
 		-ffreestanding \
 		-o $(RTE_OUTPUT)/.config_tmp $(RTE_CONFIG_TEMPLATE) ; \
 		config=$$(cat $(RTE_OUTPUT)/.config_tmp) ; \