Environment:

DPDK version:
commit 4ac3f3d76e9507a93bcf48d165ffd3a1faba08bb (HEAD -> main, tag: v21.08, origin/main, origin/HEAD)
Author: Thomas Monjalon <thomas@monjalon.net>
Date:   Sun Aug 8 17:23:21 2021 +0200

    version: 21.08.0

    Signed-off-by: Thomas Monjalon <thomas@monjalon.net>


OS version:
DISTRIB_DESCRIPTION="Ubuntu 20.04.2 LTS"
icc version: icc (ICC) 19.1.3.304 20200925
gcc version: gcc (Ubuntu 10.3.0-1ubuntu1~20.04) 10.3.0

Env setup: 
env: DPDK build 32 bit is to be tested on a 64 bit OS.
root@dpdk-xuemin4x-ub2004-i686-icc:~/dpdk# dpkg --print-foreign-architectures
i386
set 32bit build env:
#echo "source /opt/intel/bin/iccvars.sh ia32" >> ~/.bashrc
#source ~/.bashrc

Note:
There are two situations:
1.build command has  "–werror", build failed.
2.build command no  "–werror", build passed.

Test Setup:

32bit icc build cmd(has --werror),output as below:
#export RTE_TARGET=i686-native-linuxapp-icc
#export RTE_SDK=`pwd`
#export PKG_CONFIG_LIBDIR=/usr/lib/i386-linux-gnu/pkgconfig
#export LIBRARY_PATH=/usr/lib/gcc/i686-linux-gnu/10/:$LIBRARY_PATH
#CC=icc meson -Dc_args='-m32' -Dc_link_args='-m32' --werror -Denable_kmods=True -Dlibdir=lib -Dexamples=all --default-library=static i686-native-linuxapp-icc
#ninja -C i686-native-linuxapp-icc/

root@dpdk-xuemin4x-ub2004-i686-icc:~/dpdk# ninja -C i686-native-linuxapp-icc/
ninja: Entering directory `i686-native-linuxapp-icc/'
[507/2388] Compiling C object lib/librte_graph.a.p/graph_graph_stats.c.o
../lib/graph/graph_stats.c(39): warning #2405: array of elements containing a flexible array member is nonstandard
        struct cluster_node clusters[];
                            ^

[1128/2388] Compiling C object drivers/net/hinic/base/libhinic_base.a.p/hinic_pmd_hwdev.c.o
FAILED: drivers/net/hinic/base/libhinic_base.a.p/hinic_pmd_hwdev.c.o
icc -Idrivers/net/hinic/base/libhinic_base.a.p -Idrivers/net/hinic/base -I../drivers/net/hinic/base -I. -I.. -Iconfig -I../config -Ilib/eal/include -I../lib/eal/include -Ilib/eal/linux/include -I../lib/eal/linux/include -Ilib/eal/x86/include -I../lib/eal/x86/include -Ilib/eal/common -I../lib/eal/common -Ilib/eal -I../lib/eal -Ilib/kvargs -I../lib/kvargs -Ilib/metrics -I../lib/metrics -Ilib/telemetry -I../lib/telemetry -Ilib/ethdev -I../lib/ethdev -Ilib/net -I../lib/net -Ilib/mbuf -I../lib/mbuf -Ilib/mempool -I../lib/mempool -Ilib/ring -I../lib/ring -Ilib/meter -I../lib/meter -Idrivers/bus/pci -I../drivers/bus/pci -I../drivers/bus/pci/linux -Ilib/pci -I../lib/pci -Ilib/hash -I../lib/hash -Ilib/rcu -I../lib/rcu -pipe -D_FILE_OFFSET_BITS=64 -Wall -w3 -diag-disable:remark -Werror -O3 -include rte_config.h -Wextra -Wcast-qual -Wdeprecated -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wold-style-definition -Wpointer-arith -Wsign-compare -Wstrict-prototypes -Wundef -Wwrite-strings -Wno-missing-field-initializers -Wno-pointer-to-int-cast -diag-disable=181 -diag-disable=188 -diag-disable=2203 -diag-disable=2279 -diag-disable=2557 -diag-disable=3179 -diag-disable=3656 -D_GNU_SOURCE -m32 -fPIC -march=native -DALLOW_EXPERIMENTAL_API -DALLOW_INTERNAL_API -Wno-int-to-pointer-cast -Wno-pointer-to-int-cast -MD -MQ drivers/net/hinic/base/libhinic_base.a.p/hinic_pmd_hwdev.c.o -MF drivers/net/hinic/base/libhinic_base.a.p/hinic_pmd_hwdev.c.o.d -o drivers/net/hinic/base/libhinic_base.a.p/hinic_pmd_hwdev.c.o -c ../drivers/net/hinic/base/hinic_pmd_hwdev.c
../drivers/net/hinic/base/hinic_pmd_hwdev.c(148): error #2259: non-pointer conversion from "rte_iova_t={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                PMD_DRV_LOG(ERR, "Dma addr: %p already in hash table, error: %d, mz_name: %s",
                ^

../drivers/net/hinic/base/hinic_pmd_hwdev.c(157): error #2259: non-pointer conversion from "u64={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                                             (void *)(u64)mz);
                                             ^

../drivers/net/hinic/base/hinic_pmd_hwdev.c(160): error #2259: non-pointer conversion from "rte_iova_t={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                PMD_DRV_LOG(ERR, "Insert dma addr: %p hash failed, error: %d, mz_name: %s",
                ^

../drivers/net/hinic/base/hinic_pmd_hwdev.c(192): error #2259: non-pointer conversion from "dma_addr_t={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                PMD_DRV_LOG(ERR, "Can not find phys_addr: %p, error: %d",
                ^

../drivers/net/hinic/base/hinic_pmd_hwdev.c(198): error #2259: non-pointer conversion from "rte_iova_t={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                PMD_DRV_LOG(ERR, "Match mz_info failed: "
                ^

../drivers/net/hinic/base/hinic_pmd_hwdev.c(198): error #2259: non-pointer conversion from "dma_addr_t={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                PMD_DRV_LOG(ERR, "Match mz_info failed: "
                ^

../drivers/net/hinic/base/hinic_pmd_hwdev.c(256): error #2259: non-pointer conversion from "dma_addr_t={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                PMD_DRV_LOG(ERR, "Can not find phys_addr: %p, error: %d",
                ^

../drivers/net/hinic/base/hinic_pmd_hwdev.c(262): error #2259: non-pointer conversion from "rte_iova_t={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                PMD_DRV_LOG(ERR, "Match mz_info failed: "
                ^

../drivers/net/hinic/base/hinic_pmd_hwdev.c(262): error #2259: non-pointer conversion from "dma_addr_t={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                PMD_DRV_LOG(ERR, "Match mz_info failed: "
                ^

../drivers/net/hinic/base/hinic_pmd_hwdev.c(370): error #2259: non-pointer conversion from "dma_addr_t={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                                PMD_DRV_LOG(WARNING, "Free leaked dma_addr: %p, mz: %s",
                                ^

compilation aborted for ../drivers/net/hinic/base/hinic_pmd_hwdev.c (code 2)
[1130/2388] Compiling C object drivers/net/hinic/base/libhinic_base.a.p/hinic_pmd_wq.c.o
FAILED: drivers/net/hinic/base/libhinic_base.a.p/hinic_pmd_wq.c.o
icc -Idrivers/net/hinic/base/libhinic_base.a.p -Idrivers/net/hinic/base -I../drivers/net/hinic/base -I. -I.. -Iconfig -I../config -Ilib/eal/include -I../lib/eal/include -Ilib/eal/linux/include -I../lib/eal/linux/include -Ilib/eal/x86/include -I../lib/eal/x86/include -Ilib/eal/common -I../lib/eal/common -Ilib/eal -I../lib/eal -Ilib/kvargs -I../lib/kvargs -Ilib/metrics -I../lib/metrics -Ilib/telemetry -I../lib/telemetry -Ilib/ethdev -I../lib/ethdev -Ilib/net -I../lib/net -Ilib/mbuf -I../lib/mbuf -Ilib/mempool -I../lib/mempool -Ilib/ring -I../lib/ring -Ilib/meter -I../lib/meter -Idrivers/bus/pci -I../drivers/bus/pci -I../drivers/bus/pci/linux -Ilib/pci -I../lib/pci -Ilib/hash -I../lib/hash -Ilib/rcu -I../lib/rcu -pipe -D_FILE_OFFSET_BITS=64 -Wall -w3 -diag-disable:remark -Werror -O3 -include rte_config.h -Wextra -Wcast-qual -Wdeprecated -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wold-style-definition -Wpointer-arith -Wsign-compare -Wstrict-prototypes -Wundef -Wwrite-strings -Wno-missing-field-initializers -Wno-pointer-to-int-cast -diag-disable=181 -diag-disable=188 -diag-disable=2203 -diag-disable=2279 -diag-disable=2557 -diag-disable=3179 -diag-disable=3656 -D_GNU_SOURCE -m32 -fPIC -march=native -DALLOW_EXPERIMENTAL_API -DALLOW_INTERNAL_API -Wno-int-to-pointer-cast -Wno-pointer-to-int-cast -MD -MQ drivers/net/hinic/base/libhinic_base.a.p/hinic_pmd_wq.c.o -MF drivers/net/hinic/base/libhinic_base.a.p/hinic_pmd_wq.c.o.d -o drivers/net/hinic/base/libhinic_base.a.p/hinic_pmd_wq.c.o -c ../drivers/net/hinic/base/hinic_pmd_wq.c
../drivers/net/hinic/base/hinic_pmd_wq.c(11): error #2259: non-pointer conversion from "u64={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
        dma_free_coherent(hwdev, wq->wq_buf_size, (void *)wq->queue_buf_vaddr,
                                                  ^

../drivers/net/hinic/base/hinic_pmd_wq.c(34): error #2259: non-pointer conversion from "u64={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                                  (void *)wq->queue_buf_vaddr,
                                  ^

../drivers/net/hinic/base/hinic_pmd_wq.c(102): error #2259: non-pointer conversion from "unsigned long long" to "void *" may lose significant bits
        return WQ_WQE_ADDR(wq, (u32)(*cons_idx));
               ^

../drivers/net/hinic/base/hinic_pmd_wq.c(154): error #2259: non-pointer conversion from "u64={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
        memset((void *)wq->queue_buf_vaddr, 0, wq->wq_buf_size);
               ^

../drivers/net/hinic/base/hinic_pmd_wq.c(166): error #2259: non-pointer conversion from "unsigned long long" to "void *" may lose significant bits
        return WQ_WQE_ADDR(wq, (u32)(*prod_idx));
               ^

compilation aborted for ../drivers/net/hinic/base/hinic_pmd_wq.c (code 2)
[1139/2388] Compiling C object drivers/libtmp_rte_net_fm10k.a.p/net_fm10k_fm10k_ethdev.c.o
ninja: build stopped: subcommand failed.



32bit icc build cmd(no --werror),output as below:

CC=icc meson -Dc_args='-m32' -Dc_link_args='-m32' -Denable_kmods=True -Dlibdir=lib -Dexamples=all --default-library=static i686-native-linuxapp-icc

root@dpdk-xuemin4x-ub2004-i686-icc:~/dpdk# ninja -C i686-native-linuxapp-icc/
ninja: Entering directory `i686-native-linuxapp-icc/'
[505/2388] Compiling C object lib/librte_graph.a.p/graph_graph_stats.c.o
../lib/graph/graph_stats.c(39): warning #2405: array of elements containing a flexible array member is nonstandard
        struct cluster_node clusters[];
                            ^

[1137/2388] Compiling C object drivers/net/hinic/base/libhinic_base.a.p/hinic_pmd_wq.c.o
../drivers/net/hinic/base/hinic_pmd_wq.c(11): warning #2259: non-pointer conversion from "u64={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
        dma_free_coherent(hwdev, wq->wq_buf_size, (void *)wq->queue_buf_vaddr,
                                                  ^

../drivers/net/hinic/base/hinic_pmd_wq.c(34): warning #2259: non-pointer conversion from "u64={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                                  (void *)wq->queue_buf_vaddr,
                                  ^

../drivers/net/hinic/base/hinic_pmd_wq.c(102): warning #2259: non-pointer conversion from "unsigned long long" to "void *" may lose significant bits
        return WQ_WQE_ADDR(wq, (u32)(*cons_idx));
               ^

../drivers/net/hinic/base/hinic_pmd_wq.c(154): warning #2259: non-pointer conversion from "u64={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
        memset((void *)wq->queue_buf_vaddr, 0, wq->wq_buf_size);
               ^

../drivers/net/hinic/base/hinic_pmd_wq.c(166): warning #2259: non-pointer conversion from "unsigned long long" to "void *" may lose significant bits
        return WQ_WQE_ADDR(wq, (u32)(*prod_idx));
               ^

[1145/2388] Compiling C object drivers/net/hinic/base/libhinic_base.a.p/hinic_pmd_hwdev.c.o
../drivers/net/hinic/base/hinic_pmd_hwdev.c(148): warning #2259: non-pointer conversion from "rte_iova_t={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                PMD_DRV_LOG(ERR, "Dma addr: %p already in hash table, error: %d, mz_name: %s",
                ^

../drivers/net/hinic/base/hinic_pmd_hwdev.c(157): warning #2259: non-pointer conversion from "u64={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                                             (void *)(u64)mz);
                                             ^

../drivers/net/hinic/base/hinic_pmd_hwdev.c(160): warning #2259: non-pointer conversion from "rte_iova_t={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                PMD_DRV_LOG(ERR, "Insert dma addr: %p hash failed, error: %d, mz_name: %s",
                ^

../drivers/net/hinic/base/hinic_pmd_hwdev.c(192): warning #2259: non-pointer conversion from "dma_addr_t={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                PMD_DRV_LOG(ERR, "Can not find phys_addr: %p, error: %d",
                ^

../drivers/net/hinic/base/hinic_pmd_hwdev.c(198): warning #2259: non-pointer conversion from "rte_iova_t={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                PMD_DRV_LOG(ERR, "Match mz_info failed: "
                ^

../drivers/net/hinic/base/hinic_pmd_hwdev.c(198): warning #2259: non-pointer conversion from "dma_addr_t={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                PMD_DRV_LOG(ERR, "Match mz_info failed: "
                ^

../drivers/net/hinic/base/hinic_pmd_hwdev.c(256): warning #2259: non-pointer conversion from "dma_addr_t={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                PMD_DRV_LOG(ERR, "Can not find phys_addr: %p, error: %d",
                ^

../drivers/net/hinic/base/hinic_pmd_hwdev.c(262): warning #2259: non-pointer conversion from "rte_iova_t={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                PMD_DRV_LOG(ERR, "Match mz_info failed: "
                ^

../drivers/net/hinic/base/hinic_pmd_hwdev.c(262): warning #2259: non-pointer conversion from "dma_addr_t={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                PMD_DRV_LOG(ERR, "Match mz_info failed: "
                ^

../drivers/net/hinic/base/hinic_pmd_hwdev.c(370): warning #2259: non-pointer conversion from "dma_addr_t={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                                PMD_DRV_LOG(WARNING, "Free leaked dma_addr: %p, mz: %s",
                                ^

[1158/2388] Compiling C object drivers/libtmp_rte_net_hinic.a.p/net_hinic_hinic_pmd_rx.c.o
../drivers/net/hinic/hinic_pmd_rx.c(928): warning #2259: non-pointer conversion from "unsigned long long" to "void *" may lose significant bits
        rq_wqe = WQ_WQE_ADDR(rxq->wq, (u32)pi);
                 ^

[1168/2388] Compiling C object drivers/libtmp_rte_net_hinic.a.p/net_hinic_hinic_pmd_tx.c.o
../drivers/net/hinic/hinic_pmd_tx.c(353): warning #2259: non-pointer conversion from "u64={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                                ((void *)txq->sq_head_addr);
                                 ^

../drivers/net/hinic/hinic_pmd_tx.c(372): warning #2259: non-pointer conversion from "u64={uint64_t={__uint64_t={unsigned long long}}}" to "void *" may lose significant bits
                hinic_sge_cpu_to_be32((void *)txq->sq_head_addr, around_sges);
                                      ^

../drivers/net/hinic/hinic_pmd_tx.c(703): warning #2259: non-pointer conversion from "unsigned long long" to "void *" may lose significant bits
        return (struct hinic_sq_wqe *)WQ_WQE_ADDR(wq, cur_pi);
                                      ^

[1179/2388] Compiling C object drivers/net/i40e/libi40e_avx512_lib.a.p/i40e_rxtx_vec_avx512.c.o
icc: command line warning #10121: overriding '-march=native' with '-march=skylake-avx512'
[1187/2388] Compiling C object drivers/libtmp_rte_net_i40e.a.p/net_i40e_i40e_ethdev_vf.c.o
../drivers/net/i40e/i40e_ethdev_vf.c(1498): warning #191: type qualifier is meaningless on cast type
                                if ((volatile uint32_t)msg_opc ==
                                     ^

[1233/2388] Compiling C object drivers/net/iavf/libiavf_avx512_lib.a.p/iavf_rxtx_vec_avx512.c.o
icc: command line warning #10121: overriding '-march=native' with '-march=skylake-avx512'
[1238/2388] Compiling C object drivers/net/ice/libice_avx512_lib.a.p/ice_rxtx_vec_avx512.c.o
icc: command line warning #10121: overriding '-march=native' with '-march=skylake-avx512'
[1600/2388] Compiling C object drivers/libtmp_rte_raw_ioat.a.p/raw_ioat_ioat_common.c.o
In file included from ../drivers/raw/ioat/rte_ioat_rawdev.h(208),
                 from ../drivers/raw/ioat/ioat_private.h(19),
                 from ../drivers/raw/ioat/ioat_common.c(10):
../drivers/raw/ioat/rte_ioat_rawdev_fns.h(168): warning #300: const variable "null_hdl" requires an initializer
        static const uintptr_t null_hdl;
                                       ^

[1604/2388] Compiling C object drivers/libtmp_rte_raw_ioat.a.p/raw_ioat_ioat_rawdev.c.o
In file included from ../drivers/raw/ioat/rte_ioat_rawdev.h(208),
                 from ../drivers/raw/ioat/ioat_rawdev.c(11):
../drivers/raw/ioat/rte_ioat_rawdev_fns.h(168): warning #300: const variable "null_hdl" requires an initializer
        static const uintptr_t null_hdl;
                                       ^

[1607/2388] Compiling C object drivers/libtmp_rte_raw_ioat.a.p/raw_ioat_idxd_pci.c.o
In file included from ../drivers/raw/ioat/rte_ioat_rawdev.h(208),
                 from ../drivers/raw/ioat/ioat_private.h(19),
                 from ../drivers/raw/ioat/idxd_pci.c(9):
../drivers/raw/ioat/rte_ioat_rawdev_fns.h(168): warning #300: const variable "null_hdl" requires an initializer
        static const uintptr_t null_hdl;
                                       ^

[1613/2388] Compiling C object drivers/libtmp_rte_raw_ioat.a.p/raw_ioat_idxd_bus.c.o
In file included from ../drivers/raw/ioat/rte_ioat_rawdev.h(208),
                 from ../drivers/raw/ioat/ioat_private.h(19),
                 from ../drivers/raw/ioat/idxd_bus.c(16):
../drivers/raw/ioat/rte_ioat_rawdev_fns.h(168): warning #300: const variable "null_hdl" requires an initializer
        static const uintptr_t null_hdl;
                                       ^

[1665/2388] Compiling C object drivers/libtmp_rte_raw_ioat.a.p/raw_ioat_ioat_rawdev_test.c.o
In file included from ../drivers/raw/ioat/rte_ioat_rawdev.h(208),
                 from ../drivers/raw/ioat/ioat_rawdev_test.c(9):
../drivers/raw/ioat/rte_ioat_rawdev_fns.h(168): warning #300: const variable "null_hdl" requires an initializer
        static const uintptr_t null_hdl;
                                       ^

[2227/2388] Compiling C object examples/dpdk-ioat.p/ioat_ioatfwd.c.o
In file included from ../drivers/raw/ioat/rte_ioat_rawdev.h(208),
                 from ../examples/ioat/ioatfwd.c(14):
../drivers/raw/ioat/rte_ioat_rawdev_fns.h(168): warning #300: const variable "null_hdl" requires an initializer
        static const uintptr_t null_hdl;
                                       ^

[2311/2388] Compiling C object examples/dpdk-mp_server.p/multi_process_client_server_mp_mp_server_main.c.o
../examples/multi_process/client_server_mp/mp_server/main.c(62): warning #300: const variable "null_mac" requires an initializer
        static const struct rte_ether_addr null_mac; /* static defaults to 0 */
                                                   ^

[2356/2388] Compiling C object examples/dpdk-vhost.p/vhost_ioat.c.o
In file included from ../drivers/raw/ioat/rte_ioat_rawdev.h(208),
                 from ../examples/vhost/ioat.c(8):
../drivers/raw/ioat/rte_ioat_rawdev_fns.h(168): warning #300: const variable "null_hdl" requires an initializer
        static const uintptr_t null_hdl;
                                       ^

[2384/2388] Generating rte_kni with a custom command
make: Entering directory '/usr/src/linux-headers-5.8.0-48-generic'
  CC [M]  /root/dpdk/i686-native-linuxapp-icc/kernel/linux/kni/kni_net.o
  CC [M]  /root/dpdk/i686-native-linuxapp-icc/kernel/linux/kni/kni_misc.o
  LD [M]  /root/dpdk/i686-native-linuxapp-icc/kernel/linux/kni/rte_kni.o
  MODPOST /root/dpdk/i686-native-linuxapp-icc/kernel/linux/kni/Module.symvers
  CC [M]  /root/dpdk/i686-native-linuxapp-icc/kernel/linux/kni/rte_kni.mod.o
  LD [M]  /root/dpdk/i686-native-linuxapp-icc/kernel/linux/kni/rte_kni.ko
make: Leaving directory '/usr/src/linux-headers-5.8.0-48-generic'
[2388/2388] Linking target app/test/dpdk-test