[v2,1/5] build: simplify subdirectory detection for EAL

Message ID 20190409105539.61460-2-bruce.richardson@intel.com (mailing list archive)
State Accepted, archived
Delegated to: Thomas Monjalon
Headers
Series small cleanup and fixes |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK
ci/intel-Performance-Testing success Performance Testing PASS
ci/mellanox-Performance-Testing success Performance Testing PASS

Commit Message

Bruce Richardson April 9, 2019, 10:55 a.m. UTC
  Within EAL we had a series of if statements for selecting the EAL directory
to use. Now that the directory names match those of the OS's they are for
we can instead just use a generated subdirectory name, shortening the code.
To avoid strange errors, we still need to check for unsupported OS's, but
do this check up-front in the config meson.build file.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
---
 config/meson.build         |  7 +++++++
 lib/librte_eal/meson.build | 17 ++---------------
 2 files changed, 9 insertions(+), 15 deletions(-)
  

Comments

Luca Boccassi April 9, 2019, 10:58 a.m. UTC | #1
On Tue, 2019-04-09 at 11:55 +0100, Bruce Richardson wrote:
> Within EAL we had a series of if statements for selecting the EAL
> directory
> to use. Now that the directory names match those of the OS's they are
> for
> we can instead just use a generated subdirectory name, shortening the
> code.
> To avoid strange errors, we still need to check for unsupported OS's,
> but
> do this check up-front in the config meson.build file.
> 
> Signed-off-by: Bruce Richardson <
> bruce.richardson@intel.com
> >
> Reviewed-by: David Marchand <
> david.marchand@redhat.com
> >
> ---
>  config/meson.build         |  7 +++++++
>  lib/librte_eal/meson.build | 17 ++---------------
>  2 files changed, 9 insertions(+), 15 deletions(-)

Acked-by: Luca Boccassi <bluca@debian.org>
  

Patch

diff --git a/config/meson.build b/config/meson.build
index 483139b10..ce6af2595 100644
--- a/config/meson.build
+++ b/config/meson.build
@@ -1,6 +1,13 @@ 
 # SPDX-License-Identifier: BSD-3-Clause
 # Copyright(c) 2017-2019 Intel Corporation
 
+# check the OS is supported, rather than going any further
+supported_exec_envs = ['freebsd', 'linux', 'windows']
+exec_env = host_machine.system()
+if not supported_exec_envs.contains(exec_env)
+	error('unsupported system type "@0@"'.format(exec_env))
+endif
+
 # set the major version, which might be used by drivers and libraries
 # depending on the configuration options
 pver = meson.project_version().split('.')
diff --git a/lib/librte_eal/meson.build b/lib/librte_eal/meson.build
index 1863622c0..fa36b20e0 100644
--- a/lib/librte_eal/meson.build
+++ b/lib/librte_eal/meson.build
@@ -9,21 +9,8 @@  subdir('common') # defines common_sources, common_objs, etc.
 
 # Now do OS/exec-env specific settings, including building kernel modules
 # The <exec-env>/eal/meson.build file should define env_sources, etc.
-if host_machine.system() == 'linux'
-	dpdk_conf.set('RTE_EXEC_ENV_LINUX', 1)
-	subdir('linux/eal')
-
-elif host_machine.system() == 'freebsd'
-	dpdk_conf.set('RTE_EXEC_ENV_FREEBSD', 1)
-	subdir('freebsd/eal')
-
-elif host_machine.system() == 'windows'
-	dpdk_conf.set('RTE_EXEC_ENV_WINDOWS', 1)
-	subdir('windows/eal')
-
-else
-	error('unsupported system type "@0@"'.format(host_machine.system()))
-endif
+dpdk_conf.set('RTE_EXEC_ENV_' + exec_env.to_upper(), 1)
+subdir(exec_env + '/eal')
 
 version = 10  # the version of the EAL API
 allow_experimental_apis = true