news

linux下的多线程调试工具

Version 1.0

* add a test suite (make check)

* fix architecture dependent bugs (x86_64, ia32)

Version 0.90.0-1

* fix bug in ptt_contention display

Version 0.90.0

* add a tool (ptt_contention) to measure contention (per thread and per NPTL
  objects) in multi-threaded applications

* add information in the trace for *_OUT events.

Version 0.10.1-2

* add support for semaphores and alias in ptt_stat

Version 0.10.1-1

* fix bug with PTT version number

Version 0.10.1

* add aliases mechanism to name threads and objects in the decoded output.

Version 0.10.0-2

* fix bug: fix bug in installation process

Version 0.10.0-1

* fix bug in ptt_seq

Version 0.10.0

* PTT is fully integrated into the glibc:
  patched glibc can be built in two different ways:
  - by default, glibc is built with NO modifications (original glibc).
  - using --with-ptt in the glibc configure script builds glibc NPTL with PTT
    support.

* PTT comes with 3 glibc patches (for glibc versions 2.3.4 to 2.3.6) and an
  experimental patch for glibc 2.4. Patches have been cleaned:
  - remove unuseful things (especially hp-timing stuff)
  - clear code
  - update comments

* PTT daemon and decoder sources have been cleaned.

* -lnk option of ptt_trace has been removed (unuseful with PTT glibc
  integration)

* several bugs have been fixed:
  - in preloading libpthread_ptt process
  - shared buffer max size
  - 32-64 bits code
  - ptt_trace and ptt_view options
  ...

Version 0.9.2-1

* fix bugs in installation process.

Version 0.9.2

* Add -lnk option to ptt_trace for systems where dynamic linkage to
  libpthread don't work. glibc source can't be removed if you want to use this
  this option.

Version 0.9.0

* PTT source tree has been entirely reorganized to conform to the GNU
  standards. Tools to patch the NPTL and PTT tools (daemon and trace file
  decoder) have been clearly separated in two distinct directories
  (patch_glibc and src).

* PTT installation process is divided into two parts:
  - patching and building the glibc (patch_glibc directory)
  - building PTT tools. This step is now based on autoconf/automake.

* All executables have been renamed: '-' becomes '_' (for example, ptt-trace
  becomes ptt_trace)

* A multithreaded application do NOT need to be linked with the instrumented
  NPTL at compilation time anymore. The needed libpthread library is loaded
  at execution time by ptt_trace

* Glibc source do NOT need to be in PTT source tree anymore. Moreover, the
  built glibc (source and built objects) can be removed after PTT
  installation.

* Man pages have been corrected and updated.