http://bugzilla.suse.com/show_bug.cgi?id=1110092 Bug ID: 1110092 Summary: clang 6.0.1 fails to correctly initialize structures and produces broken binaries! Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: Other OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Basesystem Assignee: bnc-team-screening@forge.provo.novell.com Reporter: asn@cryptomilk.org QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- If I compile the socket_wrapper project [1] with clang and run the tests, they started to fail. My current WIP tree is at [2] for reproducing it. For the tests, socker_wrapper implements a very simple echo server. If I run this echo server with valgrind, I see: ==11833== Invalid write of size 8 ==11833== at 0x40211E: echo_udp (echo_srv.c:783) ==11833== by 0x401CF4: echo (echo_srv.c:826) ==11833== by 0x40164E: main (echo_srv.c:918) ==11833== Address 0x1ffebff248 is on thread 1's stack ==11833== in frame #0, created by echo_udp (echo_srv.c:782) ==11833== ==11833== Invalid write of size 8 ==11833== at 0x4036F54: memset (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so) ==11833== by 0x402122: echo_udp (echo_srv.c:783) ==11833== by 0x401CF4: echo (echo_srv.c:826) ==11833== by 0x40164E: main (echo_srv.c:918) ==11833== Address 0x1ffefff310 is on thread 1's stack ==11833== in frame #1, created by echo_udp (echo_srv.c:782) Looking at the code, this is: 781 static void echo_udp(int sock) 782 { 783 struct torture_address saddr = { 784 .sa_socklen = sizeof(struct sockaddr_storage), 785 }; So it looks like, clang has a bug initializing structures! [1] https://cwrap.org/socket_wrapper.html [2] https://git.cryptomilk.org/users/asn/socket_wrapper.git/log/?h=master-fix -- You are receiving this mail because: You are on the CC list for the bug.