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Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 73 |
1 files changed, 73 insertions, 0 deletions
@@ -1,3 +1,76 @@ +Noteworthy changes in release 4.21 (2018-02-13) +=============================================== + +* Changes in behaviour + * Warning is now issued when -F option is used. + * Warning is now issued when a tracee with unsupported personality + is attached. + * Unknown syscall numbers are now printed in hexadecimal form. + +* Improvements + * Implemented decoding of netlink descriptor attributes as file descriptors. + * Implemented decoding of hugetlb page size selection flags. + * Implemented decoding of BPF_PROG_TEST_RUN, BPF_PROG_GET_NEXT_ID, + BPF_MAP_GET_NEXT_ID, BPF_PROG_GET_FD_BY_ID, BPF_MAP_GET_FD_BY_ID, + and BPF_OBJ_GET_INFO_BY_FD commands of bpf syscall. + * Enhanced decoding of get_thread_area, memfd_create, modify_ldt, + perf_event_open, reboot, s390_guarded_storage, s390_pcio_mmio_read, + s390_pci_mmio_write, s390_runtime_instr, s390_sthyi, set_thread_area, + and shmget syscalls. + * Implemented decoding of KVM_* and DM_LIST_DEVICES ioctl commands. + * Implemented decoding of riscv_flush_icache syscall. + * Enhanced decoding of getsockopt and setsockopt syscalls for SOL_NETLINK + level. + * Enhanced decoding of BPF_MAP_CREATE command of bpf syscall. + * Print values returned by mq_open syscall and first arguments + of mq_getsetattr, mq_notify, mq_timedreceive, and mq_timedsend syscalls + as file descriptors. + * Added decoding of get_tls syscall on arm. + * Added -e trace=%pure option for tracing system calls with no arguments that + never fail. + * Updated lists of IPV6_*, MAP_*, MEMBARRIER_CMD_*, MSG_*, NT_*, PKEY_*, + SHM_*, and TCP_* constants. + * Added manual page for the strace-log-merge command. + * Updated lists of ioctl commands from Linux 4.15. + * Implemented biarch support for s390x. + * Implemented an optional support for symbol demangling in strace -k output + (activated by --with-libiberty configure option). + * Information about availability of demangling and reliable personality + decoding (on architectures with multiple personalities) is now available + in strace -V output. + * Added decoding of pkey_alloc, pkey_free, and pkey_mprotect syscalls on + powerpc and powerpc64. + * Enhanced manual page. + +* Bug fixes + * Fixed multi-personality support in cross builds. + * Added mq_getsetattr, mq_notify, mq_open, mq_timedreceive, and mq_timedsend + syscalls to %desc tracing set. + * Fixed path tracing support for mmap syscalls with indirect arguments and + for old select syscall. + * Fixed decoding of arm-specific (__ARM_NR_*) syscalls. + * Fixed open mode flags decoding. + * Fixed corner cases in handling of strace -ff -ttt logs by strace-log-merge. + * Error counts that exceed one billion are now printed correctly in call + summary output. + * Fixed call summary header for x32 personality. + * Changes of tracee personalities are reported more reliably. + * Fixed the case when strace attaches to a tracee being inside exec and its + first syscall stop is syscall-exit-stop instead of syscall-enter-stop, + which messed up all the syscall state tracking. + * Fixed printing of higher 32 bits of the return value for x32 personality. + +* Portability + * A C compiler that supports "for" loop initial declarations is now required. + * Inability to configure multiple personality support on architectures where + multiple personalities are supported leads to configuration failure during + build now. Use --enable-mpers=check to revert to the old behaviour. + * Build-time requirement for the mpers support has been lowered from gawk 4 + to gawk 3. + * Removed incomplete and non-functional support for the CRIS architecture. + * Removed incomplete and unused support for IA-32 mode on the IA-64 + architecture. + Noteworthy changes in release 4.20 (2017-11-13) =============================================== |