Daniel-Constantin Mierla writes:
> I just did a test again, Debian Jessie, -Wall is there, the result
> doesn't show any warning like you report. It is just make as we have
> it default in the Makefiles:
I don't get any warnings either if I run the same command as you:
/usr/src/orig/kamailio/src$ gcc -g -funroll-loops -Wcast-align -m64
-minline-all-stringops -falign-loops -ftree-vectorize -fno-strict-overflow
-Wall -DNAME='"kamailio"' -DVERSION='"5.1.0-dev1"' -DARCH='"x86_64"'
-DOS='linux_' -DOS_QUOTED='"linux"' -DCOMPILER='"gcc 4.9.2"' -D__CPU_x86_64
-D__OS_linux -DSER_VER=5001000 -DCFG_DIR='"/tmp/kamailio-dev/etc/kamailio/"'
-DRUN_DIR='"/var/run/kamailio/"' -DPKG_MALLOC -DSHM_MEM -DSHM_MMAP
-DDNS_IP_HACK -DUSE_MCAST -DUSE_TCP -DDISABLE_NAGLE -DHAVE_RESOLV_RES
-DUSE_DNS_CACHE -DUSE_DNS_FAILOVER -DUSE_DST_BLACKLIST -DUSE_NAPTR -DWITH_XAVP
-DMEM_JOIN_FREE -DF_MALLOC -DQ_MALLOC -DTLSF_MALLOC -DDBG_SR_MEMORY -DUSE_TLS
-DTLS_HOOKS -DUSE_CORE_STATS -DSTATISTICS -DMALLOC_STATS -DWITH_AS_SUPPORT
-DUSE_SCTP -DFAST_LOCK -DADAPTIVE_WAIT -DADAPTIVE_WAIT_LOOPS=1024
-DCC_GCC_LIKE_ASM -DHAVE_GETHOSTBYNAME2 -DHAVE_UNION_SEMUN -DHAVE_SCHED_YIELD
-DHAVE_MSG_NOSIGNAL -DHAVE_MSGHDR_MSG_CONTROL -DHAVE_ALLOCA_H -DHAVE_TIMEGM
-DHAVE_SCHED_SETSCHEDULER -DHAVE_IP_MREQN -DHAVE_EPOLL -DHAVE_SIGIO_RT
-DSIGINFO64_WORKARROUND -DUSE_FUTEX -DHAVE_SELECT -c core/cfg/cfg_ctx.c -o
core/cfg/cfg_ctx.o -MMD -MP
But I have -O2 param and if I add it to your command, I get the warnings:
/usr/src/orig/kamailio/src$ gcc -g -O2 -funroll-loops -Wcast-align -m64
-minline-all-stringops -falign-loops -ftree-vectorize -fno-strict-overflow
-Wall -DNAME='"kamailio"' -DVERSION='"5.1.0-dev1"' -DARCH='"x86_64"'
-DOS='linux_' -DOS_QUOTED='"linux"' -DCOMPILER='"gcc 4.9.2"' -D__CPU_x86_64
-D__OS_linux -DSER_VER=5001000 -DCFG_DIR='"/tmp/kamailio-dev/etc/kamailio/"'
-DRUN_DIR='"/var/run/kamailio/"' -DPKG_MALLOC -DSHM_MEM -DSHM_MMAP
-DDNS_IP_HACK -DUSE_MCAST -DUSE_TCP -DDISABLE_NAGLE -DHAVE_RESOLV_RES
-DUSE_DNS_CACHE -DUSE_DNS_FAILOVER -DUSE_DST_BLACKLIST -DUSE_NAPTR -DWITH_XAVP
-DMEM_JOIN_FREE -DF_MALLOC -DQ_MALLOC -DTLSF_MALLOC -DDBG_SR_MEMORY -DUSE_TLS
-DTLS_HOOKS -DUSE_CORE_STATS -DSTATISTICS -DMALLOC_STATS -DWITH_AS_SUPPORT
-DUSE_SCTP -DFAST_LOCK -DADAPTIVE_WAIT -DADAPTIVE_WAIT_LOOPS=1024
-DCC_GCC_LIKE_ASM -DHAVE_GETHOSTBYNAME2 -DHAVE_UNION_SEMUN -DHAVE_SCHED_YIELD
-DHAVE_MSG_NOSIGNAL -DHAVE_MSGHDR_MSG_CONTROL -DHAVE_ALLOCA_H -DHAVE_TIMEGM
-DHAVE_SCHED_SETSCHEDULER -DHAVE_IP_MREQN -DHAVE_EPOLL -DHAVE_SIGIO_RT
-DSIGINFO64_WORKARROUND -DUSE_FUTEX -DHAVE_SELECT -c core/cfg/cfg_ctx.c -o
core/cfg/cfg_ctx.o -MMD -MP
core/cfg/cfg_ctx.c: In function ‘cfg_set_now’:
core/cfg/cfg_ctx.c:485:5: warning: dereferencing type-punned pointer will break
strict-aliasing rules [-Wstrict-aliasing]
group_inst = (cfg_group_inst_t *)translate_pointer((char *)new_array,
^
...
-- Juha
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