mk: fix build for clang 4
authorFerruh Yigit <ferruh.yigit@intel.com>
Mon, 17 Apr 2017 14:35:58 +0000 (15:35 +0100)
committerThomas Monjalon <thomas@monjalon.net>
Wed, 19 Apr 2017 13:24:32 +0000 (15:24 +0200)
commit95cd37070af44aedcb2b9a593e5121fbb6f2bfee
tree807518b0f05e788aafa8ca5dc23ffc4cb7f47e93
parent74df3fd302a638c00cb9d33ef6bcd5ef15643d65
mk: fix build for clang 4

clang 4 gives "taking address of packed member may result in an
unaligned pointer value" warnings in a few locations [1].

Disabled "-Waddress-of-packed-member" warning for clang >= 4

[1] build errors:
.../lib/librte_eal/common/eal_common_memzone.c:275:25:
error: taking address of packed member 'mlock' of class or structure
'rte_mem_config' may result in an unaligned pointer value
[-Werror,-Waddress-of-packed-member]
        rte_rwlock_write_lock(&mcfg->mlock);
                               ^~~~~~~~~~~

.../lib/librte_ip_frag/rte_ipv4_reassembly.c:139:31:
error: taking address of packed member 'src_addr' of class or structure
'ipv4_hdr' may result in an unaligned pointer value
[-Werror,-Waddress-of-packed-member]
        psd = (unaligned_uint64_t *)&ip_hdr->src_addr;
                                     ^~~~~~~~~~~~~~~~

.../lib/librte_vhost/vhost_user.c:1037:34:
error: taking address of packed member 'payload' of class or structure
'VhostUserMsg' may result in an unaligned pointer value
[-Werror,-Waddress-of-packed-member]
vhost_user_set_vring_num(dev, &msg.payload.state);
       ^~~~~~~~~~~~~~~~~

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
mk/toolchain/clang/rte.vars.mk