build: detect and use libnuma

DPDK has an optional dependency on libnuma, so manage that through the
build system, by dynamically detecting the presence of the needed library
and header files. Since this library is used by both EAL and vhost, check
for the presence at the top level in the config directory.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: Luca Boccassi <bluca@debian.org>

diff --git a/config/meson.build b/config/meson.build
index 2e0f581..f0d74d4 100644 (file)
--- a/config/meson.build
+++ b/config/meson.build
@@ -37,6 +37,16 @@ add_project_arguments('-march=@0@'.format(machine), language: 'c')
 add_project_link_arguments('-lm', language: 'c')
 dpdk_extra_ldflags += '-lm'
 
+# check for libraries used in multiple places in DPDK
+has_libnuma = 0
+numa_dep = cc.find_library('numa', required: false)
+if numa_dep.found() and cc.has_header('numaif.h')
+       dpdk_conf.set10('RTE_HAS_LIBNUMA', true)
+       has_libnuma = 1
+       add_project_link_arguments('-lnuma', language: 'c')
+       dpdk_extra_ldflags += '-lnuma'
+endif
+
 # add -include rte_config to cflags
 add_project_arguments('-include', 'rte_config.h', language: 'c')
 

diff --git a/lib/librte_eal/linuxapp/eal/meson.build b/lib/librte_eal/linuxapp/eal/meson.build
index d4be557..9f1cbbf 100644 (file)
--- a/lib/librte_eal/linuxapp/eal/meson.build
+++ b/lib/librte_eal/linuxapp/eal/meson.build
@@ -47,6 +47,9 @@ sources = ['eal_alarm.c',
 ]
 
 eal_extra_link_arg = '-ldl'
+if has_libnuma == 1
+       dpdk_conf.set10('RTE_EAL_NUMA_AWARE_HUGEPAGES', true)
+endif
 
 if get_option('per_library_versions')
        lib_version = '@0@.1'.format(version)

diff --git a/lib/librte_vhost/meson.build b/lib/librte_vhost/meson.build
index 529b0ae..6ae4d36 100644 (file)
--- a/lib/librte_vhost/meson.build
+++ b/lib/librte_vhost/meson.build
@@ -32,6 +32,9 @@
 if host_machine.system() != 'linux'
        build = false
 endif
+if has_libnuma == 1
+       dpdk_conf.set10('RTE_LIBRTE_VHOST_NUMA', true)
+endif
 version = 4
 allow_experimental_apis = true
 sources = files('fd_man.c', 'iotlb.c', 'socket.c', 'vhost.c', 'vhost_user.c',