Hi Laurent, Few patches I'v been writting while trying to figure out this issue: http://lists.nongnu.org/archive/html/qemu-arm/2018-01/msg00514.html
As usual with linux-user files, this series will trigger some checkpatch benign warnings. Regards, Phil. Since v4: - rebased on master (no change) Since v3: - addressed Laurent comments - added print_sockfd() - removed the print_sockaddr_ptr() patch, also the two getsockname()/recvfrom() patches for after 3.0. Since v2: - display invalid pointer in print_timeval() and print_timezone() - do not display gettimeofday() arguments Since v1: - addressed Laurent comments - added 'last' argument to print_sockaddr() - reordered series, so patches already correct can get applied directly - dropped "linux-user/syscall: simplify recvfrom()" for now v1: http://lists.nongnu.org/archive/html/qemu-devel/2018-01/msg05855.html v2: http://lists.nongnu.org/archive/html/qemu-devel/2018-06/msg08216.html v3: http://lists.nongnu.org/archive/html/qemu-devel/2018-07/msg00411.html $ git backport-diff [----] : patches are identical [####] : number of functional differences between upstream/downstream patch [down] : patch is downstream-only The flags [FC] indicate (F)unctional and (C)ontextual differences, respectively 001/12:[----] [--] 'linux-user/syscall: Verify recvfrom(addr) is user-writable' 002/12:[----] [--] 'linux-user/strace: Improve capget()/capset() output' 003/12:[0002] [FC] 'linux-user/strace: Display invalid pointer in print_timeval()' 004/12:[0002] [FC] 'linux-user/strace: Add print_timezone()' 005/12:[----] [--] 'linux-user/strace: Improve settimeofday()' 006/12:[down] 'linux-user/syscall: Introduce target_sockaddr_nl' 007/12:[0018] [FC] 'linux-user/strace: Dump AF_NETLINK sockaddr content' 008/12:[----] [--] 'linux-user/strace: Improve recvmsg() output' 009/12:[down] 'linux-user/strace: Add print_sockfd()' 010/12:[0004] [FC] 'linux-user/strace: Let print_sockaddr() have a 'last' argument' 011/12:[0004] [FC] 'linux-user/strace: Improve bind() output' 012/12:[0004] [FC] 'linux-user/strace: improve sendto() output' Philippe Mathieu-Daudé (10): linux-user/syscall: Verify recvfrom(addr) is user-writable linux-user/strace: Display invalid pointer in print_timeval() linux-user/strace: Add print_timezone() linux-user/strace: Improve settimeofday() linux-user/syscall: Introduce target_sockaddr_nl linux-user/strace: Dump AF_NETLINK sockaddr content linux-user/strace: Add print_sockfd() linux-user/strace: Let print_sockaddr() have a 'last' argument linux-user/strace: Improve bind() output linux-user/strace: improve sendto() output linux-user/syscall_defs.h | 7 ++ linux-user/strace.c | 133 ++++++++++++++++++++++++++++++++++---- linux-user/syscall.c | 11 +++- linux-user/strace.list | 6 +- 4 files changed, 139 insertions(+), 18 deletions(-) -- 2.19.1