Noteworthy changes in release ?.?? (????-??-??)
===============================================
+* Improvements
+ * Implemented decoding of kvm vcpu exit reason (-e kvm=vcpu option),
+ requires Linux kernel version 4.16.0 or higher.
+ * Implemented decoding of KVM_SET_CPUID2 and KVM_GET_*_CPUID ioctl commands.
+
+Noteworthy changes in release 4.23 (2018-06-14)
+===============================================
+
+* Changes in behaviour
+ * On x32 personality, 64-bit syscalls (such as readv) are now shown with "#64"
+ suffix instead of "64:" prefix. Unlike the old names, these new names
+ can be used in syscall qualification expressions.
+ * Changed error number output format: error numbers are consistently
+ printed as "-1 ECONST (Error description)"
+ for known errors and as "-1 (errno 123)" for unknown errors,
+ regardless of -e raw qualification settings. One can specify
+ -X raw for displaying raw error numbers unconditionally.
+ * Unfetchable addresses inside arrays are now printed as comments.
+ * Obsolete IA-32 mode syscall names are no longer printed on ia64.
+
+* Improvements
+ * Implemented libdw backend for -k option, configured at build time
+ using --with-libdw option.
+ Whether -k option is compiled is now configured at build time
+ using --enable-stacktrace option.
+ * Added -X option for configuring xlat output formatting (addresses
+ Debian bug #692915).
+ * Added support for personality designation ("64", "32", or "x32") to syscall
+ qualifications in -e trace expressions.
+ * Implemented injection of syscalls with no side effects as an alternative
+ to injection of an invalid syscall (-e inject=SET:syscall= expression).
+ * Improved support for reproducible builds (addresses Debian bug #896016).
+ * Implemented decoding of BPF_PROG_QUERY and BPF_RAW_TRACEPOINT_OPEN bpf
+ syscall commands.
+ * Implemented decoding of INOTIFY_IOC_SETNEXTWD and PERF_EVENT_IOC_* ioctl
+ commands.
+ * Implemented decoding of PR_GET_SPECULATION_CTRL and PR_SET_SPECULATION_CTRL
+ prctl syscall options.
+ * Enhanced decoding of bpf, getsockopt, setsockopt, and socket syscalls.
+ * Enhanced decoding of NETLINK_KOBJECT_UEVENT and NETLINK_ROUTE protocols.
+ * Enhanced decoding of *_DIAG_MEMINFO netlink attributes.
+ * Enhanced decoding of BTRFS_*, FS_IOC_*, SIOCGIFHWADDR, and SIOCSIFHWADDR
+ ioctl commands.
+ * Enhanced decoding of AF_BLUETOOTH socket addresses.
+ * Implemented decoding of io_pgetevent syscall.
+ * Wired up rseq syscall.
+ * Updated lists of ADJ_*, BPF_*, BPF_F_*, BPF_PROG_TYPE_*, ETH_P_*, FPE_*,
+ IFF_*, IPPROTO_*, MAP_*, MS_*, MSG_*, NETLINK_*, PACKET_*, PROT_*, SCTP_*,
+ SECCOMP_FILTER_FLAG_*, SEGV_*, SEM_*, SHM_*, SW_*, V4L2_CID_*,
+ V4L2_CTRL_CLASS_*, and V4L2_PIX_FMT_* constants.
+ * Updated lists of ioctl commands from Linux 4.17.
+
+* Bug fixes
+ * Fixed decoding of msgtyp argument of msgrcv syscall.
+ * Fixed fallback definitions for F_*, MCL_*, MSG_ZEROCOPY, SI_*,
+ and SOL_SOCKET constants.
+ * Fixed -e trace=%pure expression on mips.
+
+Noteworthy changes in release 4.22 (2018-04-05)
+===============================================
+
+* Changes in infrastructure
+ * The mailing list was moved to strace-devel@lists.strace.io.
+ * SourceForge git repository
+ (https://sourceforge.net/p/strace/code/ci/master/tree/) is no longer
+ maintained. Please use GitLab (https://gitlab.com/strace/strace/)
+ or GitHub (https://github.com/strace/strace/) repository instead.
+
+* Changes in behaviour
+ * When printing string data, '8' and '9' following an octal escape sequence
+ no longer lead to unabbreviated octal escape sequence output, as they used
+ to do.
+ * Angle brackets are now printed as octal number escape sequences
+ in the output of paths associated with file descriptors.
+ * Data dump for write syscalls (-e write) is performed regardless
+ of successfulness of these syscall (addresses Debian bug #436284).
+ * -r and -t options are now affect output independently. Previously,
+ -r option led to ignoring of the -t option (addresses Debian bug #466195).
+
+* Improvements
+ * Implemented delay injection (-e inject=SET:delay_enter= and
+ -e inject=SET:delay_exit= options).
+ * Added -A option for opening output files in append mode
+ (addresses Debian bug #528488).
+ * IPv6 addresses shown in socket information in -yy mode are now printed
+ in brackets.
+ * Enhanced decoding of bpf, prctl and ptrace syscalls.
+ * Enhanced decoding of BTRFS_IOC_INO_PATHS, BTRFS_IOC_LOGICAL_INO, and PTP_*
+ ioctl commands.
+ * Enhanced NETLINK_ROUTE protocol decoding.
+ * Updated lists of signal codes.
+ * Updated lists of BPF_*, BTN_*, ETH_P_*, INET_DIAG_BC_*, KEY_*, POLL*, RWF_*,
+ SCHED_FLAG_*, SCTP_* and error constants.
+ * Implemented block/character device number printing in -yy mode.
+ * Known pixel/SDR format names are printed as comments for pixelformat fields
+ in v4l2 structures.
+ * Enhanced decoding of kern_features syscall.
+ * Enhanced NETLINK_NETFILTER netlink protocol decoder.
+ * Optimized handling of large number of tracees.
+ * Improved wall clock time measurement in syscall count statistics
+ (-c -w option).
+ * Extended the range of allowed values in -e inject=...:retval= expression.
+ * Added i18n support.
+ * Updated lists of ioctl commands from Linux 4.16.
+ * Enhanced manual page.
+
+* Bug fixes
+ * Fixed build on m68k.
+ * Fixed v4l2 pixelformat decoding on big-endian architectures.
+ * Fixed -O option.
+
+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.
- * Updated lists of MSG_*, NT_*, and SHM_* constants.
+ * 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 can compile ISO Standard C (currently C99) is required.
- Older versions without support of "for" loop initial declarations
- will not work.
+ * 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)
===============================================
projects / strace / blobdiff