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From: Bruce Richardson <bruce.richardson@intel.com>
To: dev@dpdk.org
Cc: david.marchand@redhat.com,
Bruce Richardson <bruce.richardson@intel.com>
Subject: [PATCH v5 06/11] lib: add generalized AVX build handling
Date: Tue, 25 Mar 2025 16:02:48 +0000
Message-ID: <20250325160254.1724560-7-bruce.richardson@intel.com>
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Add support to the top-level lib build file for AVX2 and AVX512
specific sources. This should simplify library builds by avoiding the
need to constantly reimplement the same build logic
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
---
lib/meson.build | 34 +++++++++++++++++++++++++++++++++-
1 file changed, 33 insertions(+), 1 deletion(-)
diff --git a/lib/meson.build b/lib/meson.build
index ce92cb5537..e2605e7d68 100644
--- a/lib/meson.build
+++ b/lib/meson.build
@@ -122,6 +122,9 @@ foreach l:libraries
use_function_versioning = false
annotate_locks = true
sources = []
+ sources_avx2 = []
+ sources_avx512 = []
+ cflags_avx512 = [] # extra cflags for the avx512 code, e.g. extra avx512 feature flags
headers = []
indirect_headers = [] # public headers not directly included by apps
driver_sdk_headers = [] # public headers included by drivers
@@ -242,7 +245,36 @@ foreach l:libraries
cflags += '-Wthread-safety'
endif
- # first build static lib
+ # handle avx2 and avx512 source files
+ if arch_subdir == 'x86'
+ if sources_avx2.length() > 0
+ avx2_lib = static_library(libname + '_avx2_lib',
+ sources_avx2,
+ dependencies: static_deps,
+ include_directories: includes,
+ c_args: [cflags, cc_avx2_flags])
+ objs += avx2_lib.extract_objects(sources_avx2)
+ endif
+ if sources_avx512.length() > 0 and cc_has_avx512
+ cflags += '-DCC_AVX512_SUPPORT'
+ avx512_args = [cflags, cflags_avx512, cc_avx512_flags]
+ if not target_has_avx512 and cc.has_argument('-march=skylake-avx512')
+ avx512_args += '-march=skylake-avx512'
+ if cc.has_argument('-Wno-overriding-option')
+ avx512_args += '-Wno-overriding-option'
+ endif
+ endif
+ avx512_lib = static_library(libname + '_avx512_lib',
+ sources_avx512,
+ dependencies: static_deps,
+ include_directories: includes,
+ c_args: avx512_args)
+ objs += avx512_lib.extract_objects(sources_avx512)
+ endif
+ endif
+
+
+ # build static lib
static_lib = static_library(libname,
sources,
objects: objs,
--
2.45.2