net/sfc: fix build with clang 3.4.2

[dpdk.git] / drivers / net / sfc / meson.build

diff --git a/drivers/net/sfc/meson.build b/drivers/net/sfc/meson.build
index 7a89308..a1ad792 100644 (file)
--- a/drivers/net/sfc/meson.build
+++ b/drivers/net/sfc/meson.build
@@ -1,14 +1,21 @@
 # SPDX-License-Identifier: BSD-3-Clause
 #
-# Copyright(c) 2019-2020 Xilinx, Inc.
+# Copyright(c) 2019-2021 Xilinx, Inc.
 # Copyright(c) 2016-2019 Solarflare Communications Inc.
 #
 # This software was jointly developed between OKTET Labs (under contract
 # for Solarflare) and Solarflare Communications, Inc.
 
-if arch_subdir != 'x86' or not dpdk_conf.get('RTE_ARCH_64')
-       build = false
-       reason = 'only supported on x86_64'
+if is_windows
+    build = false
+    reason = 'not supported on Windows'
+    subdir_done()
+endif
+
+if (arch_subdir != 'x86' and arch_subdir != 'arm') or (not dpdk_conf.get('RTE_ARCH_64'))
+    build = false
+    reason = 'only supported on x86_64 and aarch64'
+    subdir_done()
 endif
 
 extra_flags = []
@@ -18,41 +25,75 @@ extra_flags += '-Wno-strict-aliasing'
 
 # Enable more warnings
 extra_flags += [
-       '-Wdisabled-optimization'
+        '-Wdisabled-optimization',
 ]
 
 # Compiler and version dependent flags
 extra_flags += [
-       '-Waggregate-return',
-       '-Wbad-function-cast'
+        '-Waggregate-return',
+        '-Wbad-function-cast',
 ]
 
 foreach flag: extra_flags
-       if cc.has_argument(flag)
-               cflags += flag
-       endif
+    if cc.has_argument(flag)
+        cflags += flag
+    endif
 endforeach
 
+# for gcc and old Clang compiles we need -latomic for 128-bit atomic ops
+atomic_check_code = '''
+int main(void)
+{
+    __int128 a = 0;
+    __int128 b;
+
+    b = __atomic_load_n(&a, __ATOMIC_RELAXED);
+    __atomic_store(&b, &a, __ATOMIC_RELAXED);
+    __atomic_store_n(&b, a, __ATOMIC_RELAXED);
+    return 0;
+}
+'''
+if not cc.links(atomic_check_code)
+    libatomic_dep = cc.find_library('atomic', required: false)
+    if not libatomic_dep.found()
+        build = false
+        reason = 'missing dependency, "libatomic"'
+        subdir_done()
+    endif
+
+    # libatomic could be half-installed when above check finds it but
+    # linkage fails
+    if not cc.links(atomic_check_code, dependencies: libatomic_dep)
+        build = false
+        reason = 'broken dependency, "libatomic"'
+        subdir_done()
+    endif
+    ext_deps += libatomic_dep
+endif
+
 deps += ['common_sfc_efx', 'bus_pci']
 sources = files(
-       'sfc_ethdev.c',
-       'sfc_kvargs.c',
-       'sfc.c',
-       'sfc_mcdi.c',
-       'sfc_sriov.c',
-       'sfc_intr.c',
-       'sfc_ev.c',
-       'sfc_port.c',
-       'sfc_rx.c',
-       'sfc_tx.c',
-       'sfc_tso.c',
-       'sfc_filter.c',
-       'sfc_mae.c',
-       'sfc_flow.c',
-       'sfc_dp.c',
-       'sfc_ef10_rx.c',
-       'sfc_ef10_essb_rx.c',
-       'sfc_ef10_tx.c',
-       'sfc_ef100_rx.c',
-       'sfc_ef100_tx.c',
+        'sfc_ethdev.c',
+        'sfc_kvargs.c',
+        'sfc.c',
+        'sfc_mcdi.c',
+        'sfc_sriov.c',
+        'sfc_intr.c',
+        'sfc_ev.c',
+        'sfc_port.c',
+        'sfc_rx.c',
+        'sfc_tx.c',
+        'sfc_tso.c',
+        'sfc_filter.c',
+        'sfc_switch.c',
+        'sfc_mae.c',
+        'sfc_mae_counter.c',
+        'sfc_flow.c',
+        'sfc_dp.c',
+        'sfc_ef10_rx.c',
+        'sfc_ef10_essb_rx.c',
+        'sfc_ef10_tx.c',
+        'sfc_ef100_rx.c',
+        'sfc_ef100_tx.c',
+        'sfc_service.c',
 )