[dpdk-dev] [PATCH 01/17] build: add initial infrastructure for meson & ninja builds

[Van Haaren, Harry]

> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Bruce Richardson
> Sent: Friday, September 1, 2017 11:04 AM
> To: dev at dpdk.org
> Cc: Richardson, Bruce <bruce.richardson at intel.com>
> Subject: [dpdk-dev] [PATCH 01/17] build: add initial infrastructure for meson & ninja builds
> 
> To build with meson and ninja, we need some initial infrastructure in
> place. The build files for meson always need to be called "meson.build",
> and options get placed in meson_options.txt
> 
> This commit adds a top-level meson.build file, which sets up the global
> variables for tracking drivers, libraries, etc., and then includes other
> build files, before finishing by writing the global build configuration
> header file and a DPDK pkgconfig file at the end, using some of those same
> globals.
> 
> From the top level build file, the only include file thus far is for the
> config folder, which does some other setup of global configuration
> parameters, including pulling in architecture specific parameters from an
> architectural subdirectory. A number of configuration build options are
> provided for the project to tune a number of global variables which will be
> used later e.g. max numa nodes, max cores, etc. These settings all make
> their way to the global build config header "rte_build_config.h". There is
> also a file "rte_config.h", which includes "rte_build_config.h", and this
> file is meant to hold other build-time values which are present in our
> current static build configuration but are not normally meant for
> user-configuration. Ideally, over time, the values placed here should be
> moved to the individual libraries or drivers which want those values.
> 
> Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>

Comments inline below;

<snip>

> diff --git a/config/meson.build b/config/meson.build
<snip>
> +# disable any unwanted warnings
> +unwanted_warnings = [
> +	'-Wno-address-of-packed-member',
> +	'-Wno-format-truncation'
> +]
> +foreach arg: unwanted_warnings
> +	if cc.has_argument(arg)
> +		add_project_arguments(arg, language: 'c')
> +	endif
> +endforeach

I can't fault the code here, or Meson, just noting that the disabling of these warnings causes prints on GCC 4.8.5 and GCC 5.4.0, GCC 7 only prints on -Wno-address-of-packed-member. Clang handles it correctly - and no out-of-the-ordinary prints occur. No code changes required here.


> diff --git a/config/rte_config.h b/config/rte_config.h
> new file mode 100644
> index 000000000..79b0db90f
> --- /dev/null
> +++ b/config/rte_config.h
> @@ -0,0 +1,50 @@
> +/*
> + *   BSD LICENSE
> + *
> + *   Copyright(c) 2016 Intel Corporation. All rights reserved.
> + *   All rights reserved.

2017 for license year

<snip>

Reviewed-by: Harry van Haaren <harry.van.haaren at intel.com>