-
Wed Dec 08 2021 Kris Van Hees <kris.van.hees@oracle.com> - 2.0.0-1.9
- Add support for strtok(). (Eugene Loh)
- Implement TLS (thread-local storage) variables.
- Add support for basename(), dirname(). (Eugene Loh)
- Generic hash table improvements and consistent use of htabs. (Nick Alcock)
- CTF improvements in view of better kernel support. (Nick Alcock)
- Add support for ftruncate(). (Eugene Loh)
- Add support for rand(). (Eugene Loh)
- Fix string constant handling for strings longer than strsize.
- Optimization of substr(), strjoin(), and storing strings in the trace buffer.
- Various string handling fixes and improvements. (Eugene Loh, Kris Van Hees)
[Orabug: 33651682]
- Various testsuite fixes and improvements. [Orabug: 33651682]
- Various code improvements. [Orabug: 33651682]
-
Fri Oct 15 2021 Kris Van Hees <kris.van.hees@oracle.com> - 2.0.0-1.8
- Support running dtrace under valgrind. (Nick Alcock) [Orabug: 32760574]
- Implementation of speculative tracing. (Nick Alcock)
- Add support for string comparison. (Eugene Loh)
- Add support for strchr(), strrchr(), index(), rindex(), strstr(), lltostr().
(Eugene Loh)
- Add support for symbols in compressed kernel modules. (Nick Alcock)
- Add support for htonl, htonll, htons, ntohl, ntohll, ntohs. (Eugene Loh)
- Various testsuite fixes and improvements. [Orabug: 33474154]
- Various code improvements. [Orabug: 33474154]
-
Thu Sep 09 2021 Kris Van Hees <kris.van.hees@oracle.com> - 2.0.0-1.7
- Implement argument retrieval for SDT probes.
- Introduce 'bpflog' runtime option to request BPF verifier log.
- Implementation improvements for memry copy operations.
- Fix type alignment handling for enums.
- Fix ERROR-in-BEGIN probe handling.
- Transition from variable-length string size to 2-byte string size.
- Fix size of string data in the trace output buffer.
- Fix data size for value copy.
- Add support for strjoin() subroutine.
- Add support for substr() subroutine.
-
Fri Jun 18 2021 Kris Van Hees <kris.van.hees@oracle.com> - 2.0.0-1.6
- Consolidated developent of newly ported features. [Orabug: 33037106]
- Implement built-in variables: probeprov, probemod, probefunc, probename.
- Implement built-in variables: caller, stackdepth, ucaller, ustackdepth,
errno, walltimestamp. (Eugene Loh)
- Implement actions: stack(), ustack(). (Eugene Loh)
- Implement subroutine: strlen().
- Implement option: -Z (partial). (Eugene Loh)
- Added support for string constants and string values.
- Added support for strings to trace().
- Fixed storage size determination for global and local variables.
- Improved storage layout for global and local variables.
- Mark aggregation actions as non-data recording actions. (Eugene Loh)
- Load string constant table into the 'strtab' BPF map.
- Load probe description data into the 'probes' BPF map.
- Consolidate all string hash functions into a single hash function.
- Implement variable length integer support.
- Store the length of each string as a variable length integer inline with its
character stream.
- Improve memcpy() internal BPF function.
- Testsuite improvements. (Eugene Loh)
-
Mon Apr 12 2021 Kris Van Hees <kris.van.hees@oracle.com> - 2.0.0-1.5.1
- Memory corruption fix in pid probe discovery.
-
Fri Apr 09 2021 Kris Van Hees <kris.van.hees@oracle.com> - 2.0.0-1.5
- Implement the ERROR probe. [Orabug: 32749498]
- Add checks in BPF programs for division by zero and NULL pointer dereference.
[Orabug: 32749498]
- Implement the pid provider for userspace function boundary tracing.
[Orabug: 32749504]
- Implement the -w option to explicitly allow destructive actions.
[Orabug: 31632678]
- Add support in translators for more than two kernel variants. (Nick Alcock)
[Orabug: 32748968]
- Switch from condition variable to eventfd for process death notifications.
[Orabug: 32125018]
- Implement normalize() and denormalize() actions.
- Reworking of kernel tracepoint based providers. [Orabug: 32125018]
- Reworking of global and local variable storage to allow for values sizes
beyond 8 bytes. (Eugene Loh) [Orabug: 32125018]
- Implement -xbpflogsize option. (Eugene Loh) [Orabug: 32125018]
- Improvements to -xdisasm support. (Eugene Loh) [Orabug: 32125018]
- Fix bitfield operations. (Eugene Loh) [Orabug: 32125018]
- Sample scripts for building DTrace on Ubuntu. (David McLean)
- Coding style updates. (Eugene Loh)
- Testsuite updates.
-
Wed Dec 09 2020 Kris Van Hees <kris.van.hees@oracle.com> - 2.0.0-1.4
- Implement aggregation support code for both producer and consumer.
[Orabug: 32254734]
- Implement aggregation functions: count(), lquantize().
- Implement aggregation functions: avg(), llquantize(), quantize().
(Eugene Loh)
- Implement aggregation functions: max(), min(), stddev(), sum().
(David McLean)
- Implement the printa() action.
- Rework BPF code generation to use emit*() macros.
- Fix bitwise negation. (Eugene Loh) [Orabug: 32125018]
- Fix reporting when all quantize() data is in the last bin. (Eugene Loh)
[Orabug: 32148161]
- Load pre-compiled BPF functions even if they do not have relocations.
(Eugene Loh)
- Testsuite updates.
- Fix END probe execution when consumer stops the producer.
- Force use of bash as shell.
-
Thu Oct 01 2020 Kris Van Hees <kris.van.hees@oracle.com> - 2.0.0-1.3
- Implement the freopen() action. (Eugene Loh)
- Implement the system() action. (Eugene Loh)
- Implement the id built-in variable. (David McLean)
- Implement the ppid built-in variable. (Eugene Loh)
- Improve annotations in the disassembler.
- Implement proper BEGIN and END probe semantics.
- Correct exit() action semantics.
- Correct signed divide and modulo operations. (Eugene Loh)
- Correct code generation for post-decrement expressions. (Eugene Loh)
- Various compilation fixes.
- Better support for different distributions and compiler versions.
-
Thu Aug 06 2020 Eugene Loh <eugene.loh@oracle.com> - 2.0.0-1.2
- Ensure a minimum locked-memory limit for BPF.
- int8_t is now always signed, even on platforms where char is unsigned.
-
Fri Jul 24 2020 Kris Van Hees <kris.van.hees@oracle.com> - 2.0.0-1.1
- Implement profile-n and tick-n probes. (Eugene Loh)
- Implement the printf() action.
- Implement the raise() action.
- Support probe specifications with wildcards.
- Support multiple clauses for each probe.
- Support built-in variables: arg0 through arg9 (for probes that provide
arguments), curcpu curthread, epid, gid, pid, tid, uid, and timestamp.
- Various memory management fixes.
- Register leak fixes.