[ol9_developer_UEKR7] dtrace-devel-2.0.0-1.10.el9.x86_64

Headers and libraries to develop DTrace applications.

You do not need this package merely to compile providers and probe points into
applications that will be probed by dtrace, but rather when developing
replacements for dtrace(1) itself.

Changelog (Show File list) (Show related packages)

• Tue Apr 26 2022 Kris Van Hees <kris.van.hees@oracle.com> - 2.0.0-1.10

  - Add support for assocaitive arrays.
  - Add support for allcoa() and bcopy(). (Nick Alcock)
  - Add support for inet_ntoa(), progenyof(), getmajor(), getminor(),
    mutex_owned(), mutex_owner(), mutex_type_adaptive(), mutex_type_spin(),
    rw_read_held(), rw_write_held(), and rw_iswriter(). (Eugene Loh)
  - Improved fault handling. (Nick Alcock, Kris Van Hees)
  - Various disassembler improvements, esp. annotations.
  - Strings are no longer stored using a length prefix.
  - The trace() action now supports arrays, structs, and unions.
  - Various testsuite fixes and improvements. [Orabug: 34112342]
  - Various code improvements. [Orabug: 34112342]

• Mon Jan 31 2022 Kris Van Hees <kris.van.hees@oracle.com> - 2.0.0-1.9.1

  - Add support for UEK7. [Orabug: 33806867]

• 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 development 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.