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Tue Jun 10 2025 Kris Van Hees <kris.van.hees@oracle.com> - 2.0.3-1
- This is only released on OL10.
- Redesigned USDT support to work for LTO compilations. [Orabug: 38011704]
- New builtin variable: execargs.
- Offset probes in pid provider. (Eugene Loh)
- Various bug fixes. (Nick Alcock, Eugene Loh, Kris Van Hees)
- Various testsuite fixes and improvements.
(Nick Alcock, Sam James, Eugene Loh, Kris Van Hees)
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Mon Nov 11 2024 Kris Van Hees <kris.van.hees@oracle.com> - 2.0.2-1
- Translators to support kernels 6.10 and later.
- FBT return probe argument support.
- The print() action is augmented with type information. (Alan Maguire)
- Support to discover and trace USDT probes after a tracing session has
started. (Eugene Loh, Nick Alcock)
- USDT probe argument support (translated types, mapping). (Nick Alcock)
- Installation locations are now configurable. (Nick Alcock)
- Valgrind is no longer a required build dependency. (Nick Alcock)
- Self-grabs have been improved. (Nick Alcock)
- New provider: rawfbt. (Kris Van Hees)
- Various bug fixes. (Nick Alcock, Eugene Loh, Alan Maguire, Kris Van Hees)
- Various testsuite fixes and improvements.
(Nick Alcock, Sam James, Eugene Loh, Kris Van Hees)
- Various code improvements. (Nick Alcock, Eugene Loh, Kris Van Hees)
[Orabug: 37274251]
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Mon May 06 2024 Kris Van Hees <kris.van.hees@oracle.com> - 2.0.1-1
- Implement FBT probes with fentry/fexit tracepoints
- Provide argument info for FBT probes.
- Provide pre-generated translator files sets. [Orabug: 36504847]
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Tue Mar 05 2024 Kris Van Hees <kris.van.hees@oracle.com> - 2.0.0-1.14
- Implement provider: io. (Eugene Loh, Kris Van Hees)
- Implement actions: print(). (Alan Maguire)
- Implement subroutines: link_ntop(), cleanpath(). (Eugene Loh)
- Implement options: -xcpu, -xaggpercpu. (Eugene Loh)
- Improve providers: pid (offset-based probes) and rawtp (arg info).
- Improve options: -xlockmem (improve default). (Eugene Loh)
- Ensure USDT probes can survive dtprobed restarts. (Nick Alcock)
- Improve USDT probe creation/deletion. (Nick Alcock)
- Improve support for DTrace with upstream kernels. (Nick Alcock)
- Improve support for compiling DTrace in older environments. (Kris Van Hees)
- Add support for aggregations of stacks. (Eugene Loh)
- Improve lexer parsing (top-level wildcard ambiguities and `numerals).
(Nick Alcock)
- Fix END probe execution with multiple tracers. (Nick Alcock)
- Preemptive BPF program execution for DTrace probes is not allowed.
- Buffer overrun fix for systems with non-sequential online CPU ids.
(Kris Van Hees, Nick Alcock) [Orabug: 36356681]
- Various bug fixes. (Nick Alcock, Eugene Loh, Kris Van Hees)
- Various testsuite fixes and improvements.
(Nick Alcock, Eugene Loh, Kris Van Hees)
- Various code improvements. (Nick Alcock, Eugene Loh, Kris Van Hees)
[Orabug: 36329725]
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Thu Nov 09 2023 Kris Van Hees <kris.van.hees@oracle.com> - 2.0.0-1.13.2
- Support using DTrace with upstream kernels.
- Implement provider: ip.
- Implement actions: trunc(), pcap().
- Implement subroutines: inet_ntoa6().
- Implement subroutines: inet_ntop(). (Eugene Loh)
- Support modules.builtin.ranges for builtin module-symbol association.
- Provide a BTF-to-CTF convertor to provide (limited) kernel type information
when CTF is not available.
- Remove dependency on waitfd(). (Nick Alcock)
- Various testsuite fixes and improvements.
(Nick Alcock, Eugene Loh, Kris Van Hees)
- Various code improvements. (Nick Alcock, Eugene Loh, Kris Van Hees)
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Wed Jun 07 2023 Kris Van Hees <kris.van.hees@oracle.com> - 2.0.0-1.13.1
- Restart dtprobed when upgrading DTrace.
- Report and clean up orphaned tracing events after each test.
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Fri May 26 2023 Kris Van Hees <kris.van.hees@oracle.com> - 2.0.0-1.13
- Full support for is-enabled USDT probes. (Nick Alcock)
- Report error on programs that exceed aggsize or dynvarsize.
- Support for drop counters for principal, speculation, and aggregation buffers
and for dynamic variables.
- Implement probe: proc:::signal-clear.
- Implement provider: sched (partial implementation).
- Implement provider: lockstat (for kernels >= 5.10.0 and UEK6 with fix).
- Support NULL strings. (Eugene Loh)
- Support uregs[] on older kernels. (Eugene Loh)
- New option: lonknommap. (Nick Alcock)
- Support for USDT probes in programs in different fs namespaces. (Nick Alcock)
- Support for USDT probes in non-PIE executables. (Nick Alcock)
- Fix dtprobed to support DOF that exceeds 64KiB. (Nick Alcock)
[Orabug: 35411920]
- Do not modify input files with dtrace -G if unchanged. (Steven Sistare)
[Orbug: 35417184]
- Various testsuite fixes and improvements.
(Nick Alcock, Eugene Loh, Kris Van Hees) [Orabug: 35435195]
- Various code improvements. (Nick Alcock, Eugene Loh, Kris Van Hees)
[Orabug: 35435195]
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Mon Feb 27 2023 Kris Van Hees <kris.van.hees@oracle.com> - 2.0.0-1.12
- Fix evaluation order of bcopy() arguments and lift non-alloca restriction
on the source address. (Eugene Loh, Kris Van Hees)
- Implement actions: clear(), tracemem(). (Kris Van Hees, Eugene Loh)
- Implement subroutines: copyout(), copyinstr(). (Kris Van Hees, Eugene Loh)
- Implement options: switchrate, aggrate.
- Implement provider: cpc. (Eugene Loh)
- Implement provider: proc.
- Implement built-in variable: uregs. (Eugene Loh)
- Increase strtab maximum size.
- Support using indirect load instructions for pointers to alloca()'d and
DTrace managed memory. (Kris Van Hees, Eugene Loh)
- Fix arg0 and arg1 for profile-* and tick-* probes. (Eugene Loh)
- Implement runtime bounds checking for scalar array access. (Eugene Loh)
- Updated manpage and moved to dtrace.8.
- Support arbitrary address pointers for basename(), dirname(), strchr(),
strrchr(), and inet_ntoa(). (Eugene Loh) [Orabug: 34857846]
- Add runtime bounds checking for scalar array access. (Eugene Loh)
[Orabug: 35045463]
- Various testsuite fixes and improvements. [Orabug: 34829509]
- Various code improvements. [Orabug: 34829509]
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Tue Nov 08 2022 Kris Van Hees <kris.van.hees@oracle.com> - 2.0.0-1.11.1
- Support both libfuse 2 and libfuse 3.
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Fri Oct 28 2022 Kris Van Hees <kris.van.hees@oracle.com> - 2.0.0-1.11
- Add initial support for USDT. (Nick Alcock, Kris Van Hees)
- Add support for aggregation keys. (Eugene Loh, Kris Van Hees)
- Add support for copyin(), copyinto(), and copyinstr().
- Add support for built-in variable args[] and sdt probe arg types.
- Fix arg handling for various probes. (Eugene Loh)
- Add basic support for setopt().
- Add -xlockmem, with useful error message. (Eugene Loh)
- Fix -xverbose, -xcpp, and -xctfpath
- Fix handling of multiple args after --. (Nick Alcock)
- Have the pid provider ignore compiler-generated internal function names.
- Fix various bugs with typecasting and internal integer storage. (Eugene Loh)
- Fix access to scalars in kernel space.
- Fix libproc search of rtld_global due to glibc changes. (Nick Alcock)
[Orabug: 32856318]
- Truly decouple per-CPU BPF agg maps with a "map of maps."
- Unused dual aggregation copies (DT_AGG_NUM_COPIES) have been removed.
(Eugene Loh)
- Various testsuite fixes and improvements. [Orabug: 34251899]
- Various code improvements. [Orabug: 34251899]