UPDATE

*** 20140510+

* Lihang Li <licalmer@gmail.com>
  Fix build warning in 32-bit.

* Linyu Zhu <lynuszhu@gmail.com>
  Lihang Li <licalmer@gmail.com>
  Fix some issues of doc.

* Linyu Zhu <lynuszhu@gmail.com>
  Fix GTP_RB_RELEASE macro's issue in KGTP's ring buffer.

* Hui Zhu <teawater@gmail.com>
  Fix some issues of kgtp.py with Fedora.

*** 20140510

* https://lkml.org/lkml/2014/5/11/395

* Remove txt documents because KGTP has pdf version documents now.

* Update doc "Get help or report issues".
  http://teawater.github.io/kgtp/kgtp.html#__RefHeading__11582_1935127565
  http://teawater.github.io/kgtp/kgtpcn.html#__RefHeading__3899_71337508

* Update doc "Get KGTP through git".
  http://teawater.github.io/kgtp/kgtp.html#__RefHeading__4098_695897485
  http://teawater.github.io/kgtp/kgtpcn.html#__RefHeading__10760_71337508

* Update doc "Get KGTP through http".
  http://teawater.github.io/kgtp/kgtp.html#__RefHeading__4096_695897485
  http://teawater.github.io/kgtp/kgtpcn.html#__RefHeading__10758_71337508

* Remove line that access $no_self_trace in hotcode.py.

* Remove "doc_install" and "doc_uninstall" in Makefile to handle error
  of "make install".

* Add TSV $task_pt_regs.

* Fix the build failed with the Linux kernel that newer than 3.13.

* Add python script kgtp.py that can auto setup and start KGTP and GDB
  in current machine.

* Update doc.
  Change "Preparatory work before use KGTP", "How to let GDB connect to KGTP" and "Add module symbols to GDB" as appendix.
  http://teawater.github.io/kgtp/kgtp.html#__RefHeading__11428_1305468286
  http://teawater.github.io/kgtp/kgtp.html#__RefHeading__4433_1176671169
  http://teawater.github.io/kgtp/kgtp.html#__RefHeading__4828_1369842245
  http://teawater.github.io/kgtp/kgtpcn.html#__RefHeading__11597_1305468286
  http://teawater.github.io/kgtp/kgtpcn.html#__RefHeading__11575_71337508
  http://teawater.github.io/kgtp/kgtpcn.html#__RefHeading__11597_71337508
  Add "Quick config and start KGTP".
  http://teawater.github.io/kgtp/kgtp.html#__RefHeading__11364_1305468286
  http://teawater.github.io/kgtp/kgtpcn.html#__RefHeading__11595_1305468286

* Remove quickstart.txt.

*** 20131220

* Get in github:
  Get through https:
  https://github.com/teawater/kgtp/archive/20131220.tar.gz
  Get through git:
  git clone https://github.com/teawater/kgtp.git
  git checkout 20131220 -b 20131220

* Get in CSDN:
  Get through https:
  https://code.csdn.net/teawater/kgtp/repository/archive?ref=20131220
  Get through git:
  git clone git://code.csdn.net/teawater/kgtp.git
  git checkout 20131220 -b 20131220

* Update doc "What is KGTP".
  https://code.google.com/p/kgtp/wiki/HOWTO#What_is_KGTP
  https://code.google.com/p/kgtp/wiki/HOWTOCN#什么是KGTP

* Fix build error from Linux kernel 3.5 to Linux kernel 3.9.
  Thanks report from 钱凯

* Update doc "Trace user applications".
  https://code.google.com/p/kgtp/wiki/HOWTO#Trace_user_applications
  https://code.google.com/p/kgtp/wiki/HOWTOCN#Trace用户程序

*** 20131218

* https://lkml.org/lkml/2013/12/18/931

* Get in github:
  Get through https:
  https://github.com/teawater/kgtp/archive/20131218.tar.gz
  Get through git:
  git clone https://github.com/teawater/kgtp.git
  git checkout 20131218 -b 20131218

* Get in CSDN:
  Get through https:
  https://code.csdn.net/teawater/kgtp/repository/archive?ref=20131218
  Get through git:
  git clone git://code.csdn.net/teawater/kgtp.git
  git checkout 20131218 -b 20131218

* Add uprobe support.  Then KGTP can trace user applications.
  https://code.google.com/p/kgtp/wiki/HOWTO#Trace_user_applications
  https://code.google.com/p/kgtp/wiki/HOWTOCN#Trace用户程序

* Fix https://github.com/teawater/kgtp/issues/9
  A multiprocess bug about packets "?" and "Hg".

* Fix https://github.com/teawater/kgtp/issues/8
  A TSV check bug.

* Add "monitor disable" and KGTP address disable list to handle the
  issue that GDB cannot disable one tracepoint of a same number tracepoints
  list.

* Update doc "Where is the current Linux kernel debug image" to make it more clear.
  https://code.google.com/p/kgtp/wiki/HOWTO#Where_is_the_current_Linux_kernel_debug_image
  https://code.google.com/p/kgtp/wiki/HOWTOCN#当前Linux内核调试镜像在哪

* Update doc add section "Load Linux kernel debug image to GDB".
  https://code.google.com/p/kgtp/wiki/HOWTO#Load_Linux_kernel_debug_image_to_GDB
  https://code.google.com/p/kgtp/wiki/HOWTOCN#装载Linux内核调试镜像到GDB

* Add support for preempt_count_add and preempt_count_sub to make KGTP
  can build with Linux Kernel 3.13.
  Thanks help from Chen Gang.

* Update doc "Use KGTP with user applications".
  https://code.google.com/p/kgtp/wiki/HOWTO#Use_KGTP_with_user_applications
  https://code.google.com/p/kgtp/wiki/HOWTOCN#和用户程序一起使用KGTP

* Update doc "What is KGTP".
  Thanks help from Xi Yang.
  https://code.google.com/p/kgtp/wiki/HOWTO#What_is_KGTP
  https://code.google.com/p/kgtp/wiki/HOWTOCN#什么是KGTP

*** 20130915

* https://lkml.org/lkml/2013/9/15/12

* Get through https:
  https://github.com/teawater/kgtp/archive/20130915.tar.gz
  Get through git:
  git clone https://github.com/teawater/kgtp.git
  git checkout 20130915 -b 20130915

* Remove gtp_taobao.patch because we can post pull request to ali_kernel
  in github directly.

* Fix https://code.google.com/p/kgtp/issues/detail?id=149 that cannot
  get right value of x86_32 $ebp.
  Thanks report from wangwangwar.

* Fix https://github.com/teawater/kgtp/issues/1
  Thanks report from Tao Ma and Yanhai Zhu.

* Add howto pdf files:
  https://raw.github.com/teawater/kgtp/master/kgtp.pdf
  https://raw.github.com/teawater/kgtp/master/kgtpcn.pdf

* Add "new way" to "Install the Linux kernel source".
  https://code.google.com/p/kgtp/wiki/HOWTO#New_way
  https://code.google.com/p/kgtp/wiki/HOWTOCN#新方法

* Fix https://github.com/teawater/kgtp/issues/2
  Thanks report from Brad Dixon.
  Let kunmap use "page" as its argument.

* The .config inside UBUNTU linux-headers close CONFIG_DEBUG_INFO=y.
  It will make KGTP module will not build with "-g" in UBUNTU that
  will make KGTP module doesn't have debug info.
  To handle this isssue, add "export CONFIG_DEBUG_INFO=y" to Makefile 
  to make KGTP module can build with -g in UBUNTU.

* Fix https://github.com/teawater/kgtp/issues/3
  Thanks report from Brad Dixon.
  Fix 2 bugs:
  1. gtp_get_user_page doesn't check the return of find_vma.
  2. The way that get x86_32's user space program sp is wrong.

* Fix https://github.com/teawater/kgtp/issues/6
  Fix 2 bugs:
  1. Let gtp_gdbrsp_qxfer_traceframe_info_read return error if it in *no tfind* mode or in replay mode.
  2. Let gtp_gdbrsp_m copy memory value to right address.

* Fix a bug that use KGTP from remote with normal way and offline debug together.
  https://github.com/teawater/kgtp/commit/403f14dde39d5304b38b1c5014712aff8e2f1fc3

* Update doc add section "About this document".
  https://code.google.com/p/kgtp/wiki/HOWTO#About_this_document
  https://code.google.com/p/kgtp/wiki/HOWTOCN#关于本文

* Update doc "Get KGTP".
  https://code.google.com/p/kgtp/wiki/HOWTO#Get_KGTP
  https://code.google.com/p/kgtp/wiki/HOWTOCN#取得KGTP

* Update doc "Get help or report issues"
  https://code.google.com/p/kgtp/wiki/HOWTO#Get_help_or_report_issues
  https://code.google.com/p/kgtp/wiki/HOWTOCN#需要帮助或者汇报问题

*** 20130706

* https://lkml.org/lkml/2013/7/6/34

* https://kgtp.googlecode.com/files/kgtp_20130706.tar.bz2
  svn checkout https://kgtp.googlecode.com/svn/tags/20130706

* Fix build issue with Linux kernel 2.6.37.
  Thanks report from D___linux.

* Fix build issue with Linux kernel 2.6.32-358.el6.
  Thanks report from Dong Zhu.

* Fix bug with functions return value.

* Fix dead lock with dynamic watch tracepoint.
  https://code.google.com/p/kgtp/source/detail?r=1626

* Add build warning if KGTP build with Linux kernel that open the runtime
  locking correctness validator (CONFIG_LOCKDEP).
  Because trace function about locks with  Linux kernel that open
  CONFIG_LOCKDEP will deadlock.

* Add $watch_prev_val to show the previous value that watch tracepoint is watching on.
  https://code.google.com/p/kgtp/wiki/HOWTO#Howto_use_watch_tracepoint_control_hardware_breakpoints_to_recor
  https://code.google.com/p/kgtp/wiki/HOWTOCN#如何用watch_tracepoint控制硬件断点记录内存访问

* Update doc add section about use KGTP with Android.
  https://code.google.com/p/kgtp/wiki/HOWTO#If_use_with_Linux_kernel_of_Android
  https://code.google.com/p/kgtp/wiki/HOWTOCN#如果是Android内核
  https://code.google.com/p/kgtp/wiki/HOWTO#Android
  https://code.google.com/p/kgtp/wiki/HOWTOCN#Android

* Update doc add "The second method of install the Linux kernel debug image" for UBUNTU.
  https://code.google.com/p/kgtp/wiki/HOWTO#The_second_method_of_install_the_Linux_kernel_debug_image
  https://code.google.com/p/kgtp/wiki/HOWTOCN#安装Linux内核调试镜像的第二方法

* Update doc "Install GDB for KGTP".
  https://code.google.com/p/kgtp/wiki/HOWTO#Install_GDB_for_KGTP
  https://code.google.com/p/kgtp/wiki/HOWTOCN#安装可以和KGTP一起使用的GDB

* Update doc "How to use getmod.py".
  https://code.google.com/p/kgtp/wiki/HOWTO#How_to_use_getmod.py
  https://code.google.com/p/kgtp/wiki/HOWTOCN#如何使用getmod.py

* Let $current can be set to support some special Linux kernel functions.
  https://code.google.com/p/kgtp/wiki/HOWTO#collect_stack_(for_backtrace)_of_user_space_program_in_tracepoin
  https://code.google.com/p/kgtp/wiki/HOWTOCN#在tracepoint收集用户层程序的栈信息(可用来做backt

* Update doc "Normal compile" add introduce about howto handle the build error in Fedora.
  https://code.google.com/p/kgtp/wiki/HOWTO#Normal_compile
  https://code.google.com/p/kgtp/wiki/HOWTOCN#普通编译

* Update doc "Get KGTP through svn" add introduce about get the last release version of KGTP.
  https://code.google.com/p/kgtp/wiki/HOWTO#Get_KGTP_through_svn
  https://code.google.com/p/kgtp/wiki/HOWTOCN#通过svn下载KGTP

* Update doc "Install the Linux kernel debug image" add debuginfo-install.
  https://code.google.com/p/kgtp/wiki/HOWTO#Install_the_Linux_kernel_debug_image
  https://code.google.com/p/kgtp/wiki/HOWTOCN#安装Linux内核调试镜像

* Update doc "Install the Linux kernel devel package" add a note.
  https://code.google.com/p/kgtp/wiki/HOWTO#Install_the_Linux_kernel_devel_package
  https://code.google.com/p/kgtp/wiki/HOWTOCN#安装Linux内核开发包

* Update doc add "Get the way that access the variable that has been out through parse ASM code".
  https://code.google.com/p/kgtp/wiki/HOWTO#Get_the_way_that_access_the_variable_that_has_been__out_through
  https://code.google.com/p/kgtp/wiki/HOWTOCN#通过分析汇编代码取得访问被优化掉变量的方法

*** 20130508

* https://lkml.org/lkml/2013/5/8/86

* http://kgtp.googlecode.com/files/kgtp_20130508.tar.bz2
  svn checkout https://kgtp.googlecode.com/svn/tags/20130508

* Add "Where is the current Linux kernel debug image" to howto.
  http://code.google.com/p/kgtp/wiki/HOWTO#Where_is_the_current_Linux_kernel_debug_image
  http://code.google.com/p/kgtp/wiki/HOWTOCN#当前Linux内核调试镜像在哪

* Add "Table of different between GDB debug normal program and KGTP" to howto.
  https://code.google.com/p/kgtp/wiki/HOWTO#Table_of_different_between_GDB_debug_normal_program_and_KGTP
  https://code.google.com/p/kgtp/wiki/HOWTOCN#GDB调试普通程序和KGTP的区别表

* Add check if $kret use with while-stepping or watch.  Make them cannot work together.

* Change $no_self_trace to $self_trace.
  https://code.google.com/p/kgtp/wiki/HOWTO#Special_trace_state_variable_$self_trace
  https://code.google.com/p/kgtp/wiki/HOWTOCN#特殊trace状态变量_$self_trace

* Update getmod.
  Add a '#' at the beginning make the output as comments if this output does not mean getmod will error quit.
  Add a '#' at the beginning make the add-symbol-file that cannot find module file as comments.

* Complete the support of while-stepping.  KGTP can let Linux kernel do single step now.
  https://code.google.com/p/kgtp/wiki/HOWTO#Use_while-stepping_let_Linux_kernel_do_single_step
  https://code.google.com/p/kgtp/wiki/HOWTOCN#使用while-stepping让Linux内核做单步

*** 20130218

* https://lkml.org/lkml/2013/2/18/145

* http://kgtp.googlecode.com/files/kgtp_20130218.tar.bz2
  svn checkout https://kgtp.googlecode.com/svn/tags/20130218

* Add watch tracepoint control hardware breakpoints to record memory access.
  http://code.google.com/p/kgtp/wiki/HOWTO#Howto_use_watch_tracepoint_control_hardware_breakpoints_to_recor
  http://code.google.com/p/kgtp/wiki/HOWTOCN#如何用watch_tracepoint控制硬件断点记录内存访问

* Update
  http://code.google.com/p/kgtp/wiki/HOWTOCN#/sys/kernel/debug/gtpframe和离线调试
  http://code.google.com/p/kgtp/wiki/HOWTO#/sys/kernel/debug/gtpframe_and_offline_debug
  add a workaround to handle issue 136.

* Update usage of putgtprsp.
  http://code.google.com/p/kgtp/wiki/HOWTOCN#/sys/kernel/debug/gtpframe和离线调试
  http://code.google.com/p/kgtp/wiki/HOWTO#/sys/kernel/debug/gtpframe_and_offline_debug

* Fix memory leak of output the value directly function.

* Make $cpu_id can be access by tracepoint action.

*** 20121204

* https://lkml.org/lkml/2012/12/9/156

* http://kgtp.googlecode.com/files/kgtp_20121204.tar.bz2
  svn checkout https://kgtp.googlecode.com/svn/tags/20121204

* Remove __exit from gtp_exit to fix a section mismatch.

* Add "Direct access the current value in normal mode" to make tfind
  more clear.
  http://code.google.com/p/kgtp/wiki/HOWTO#Direct_access_the_current_value_in_normal_mode
  http://code.google.com/p/kgtp/wiki/HOWTOCN#在普通模式直接访问当前值

* Add "Save the trace frame info to a file" to doc.
  http://code.google.com/p/kgtp/wiki/HOWTO#Save_the_trace_frame_info_to_a_file
  http://code.google.com/p/kgtp/wiki/HOWTOCN#保存trace帧信息到一个文件中\

* Make getgtprsp.pl generate files that the last char is not "\n" that
  will make "cat gtpstart > /sys/kernel/debug/gtp" get error.

* Show CPU id in $printk_level function.

* Show CPU id in $dump_stack function.

* Make $printk_level function show right val name.

* Add "putgtprsp" to handle the offline debug GDB command line file.
  Thanks report from alex.zhu.az.
  http://code.google.com/p/kgtp/wiki/HOWTO#/sys/kernel/debug/gtpframe_and_offline_debug
  http://code.google.com/p/kgtp/wiki/HOWTOCN#/sys/kernel/debug/gtpframe和离线调试

* Fix issue 130.  Thanks help from bergwolf.

* Fix issue 131.  Thanks report from Oliver Yang.

* Add How to handle error "No such file or directory." to howto.
  http://code.google.com/p/kgtp/wiki/HOWTO#How_to_handle_error_"No_such_file_or_directory."
  http://code.google.com/p/kgtp/wiki/HOWTOCN#如何处理错误_"No_such_file_or_directory."_或者

* Add Handle the issue that cannot find any file in "/sys/" or "/sys/kernel/debug/" to howto.
  Thanks report from Oliver Yang.
  http://code.google.com/p/kgtp/wiki/HOWTO#Handle_the_issue_that_cannot_find_any_file_in_"/sys/"
  http://code.google.com/p/kgtp/wiki/HOWTOCN#处理不能在"/sys/"或者"/sys/kernel/debug/&q

*** 20120920

* https://lkml.org/lkml/2012/9/20/697

* http://kgtp.googlecode.com/files/kgtp_20120920.tar.bz2
  svn checkout https://kgtp.googlecode.com/svn/tags/20120920

* Add KGTP_API_VERSION to patch and gtp.c to help gtp.c know which
  KGTP API is support by current kernel.

* Set KGTP_API_VERSION to 20120917, it include API:
  __flush_anon_page(Just just available on ARM Linux kernel 2.6.20
  and newer version)
  Following function is just available on Linux kernel that have perf: 
  perf_event_disable and perf_event_enable (Only available older
  than 3.3.0 because 3.3.0 and newer already have it.)
  local_perf_event_disable
  local_perf_event_enable
  perf_event_set

* Add $disable and $enable to disable and enable tracepoint in tracepoint
  action.

* Fix bug that complex conditon or action that access special TSV get error
  with function gtp_check_x_simple or gtp_check_x_loop.

* Fix a long size line bug of getmod.

* Update howto for "How to set tracepoint condition".
  http://code.google.com/p/kgtp/wiki/HOWTO#How_to_set_tracepoint_condition
  http://code.google.com/p/kgtp/wiki/HOWTOCN#如何设置条件tracepoint

* Update How to handle "Unsupported operator (null) (52) in expression."
  http://code.google.com/p/kgtp/wiki/HOWTO#How_to_handle_"Unsupported_operator_(null)_(52)_in_expressi
  http://code.google.com/p/kgtp/wiki/HOWTOCN#如何处理_"Unsupported_operator_(null)_(52)_in_expressio

* Add introduce for collect ptr and collect *ptr to howto.
  http://code.google.com/p/kgtp/wiki/HOWTO#collect_expr1,_expr2,_...
  http://code.google.com/p/kgtp/wiki/HOWTOCN#collect_expr1,_expr2,_...

* Fix memleak of gtp_traceframe_info and gtp_modules_traceframe_info.

* Change the format of per_cpu TSR from "pc_" to "p_"
  and change the usage of it.
  http://code.google.com/p/kgtp/wiki/HOWTO#Per_cpu_trace_state_variables
  http://code.google.com/p/kgtp/wiki/HOWTOCN#Per_cpu_trace状态变量

* To follow the change of per_cpu TSR update, change $pc_pe_en to $p_pe_en.
  http://code.google.com/p/kgtp/wiki/HOWTO#Enable_and_disable_all_the_perf_event_in_a_CPU_with_$p_pe_en
  http://code.google.com/p/kgtp/wiki/HOWTOCN#用$p_pe_en打开和关闭一个CPU上所有的perf_event

* Add new option "-n" to getmod.

* Rename gtp_older_to_2.6.32.patch to gtp_2.6.20_to_2.6.32.patch.
  Add gtp_older_to_2.6.19.patch.

* Add plugin support.
  http://code.google.com/p/kgtp/wiki/HOWTO#How_to_add_plugin_in_C
  http://code.google.com/p/kgtp/wiki/HOWTOCN#如何增加用C写的插件

*** 20120806

* http://sourceware.org/ml/gdb/2012-08/msg00014.html

* http://kgtp.googlecode.com/files/kgtp_20120806.tar.bz2
  svn checkout https://kgtp.googlecode.com/svn/tags/20120806

* When "make clean" with new Linux kernel.  Linux kernel will clean itself.
  So change "make clean" to "rm" to handle it.

* Remove S_IFIFO from debugfs_create_file because new Kernel doesn't
  like it.

* Fix a bug of gtp_task_read.  This bug will make this function can
  sleep sometimes.  This bug is dangerous when tracepoint access user
  space memory.

* Support enable and disable when tracepoint is running.

* Fix build error with RHEL 6.3.

*** 20120605

* https://lkml.org/lkml/2012/6/5/67

* http://kgtp.googlecode.com/files/kgtp_20120605.tar.bz2
  svn checkout https://kgtp.googlecode.com/svn/tags/20120605

* Add "Make sure current Linux kernel debug image is right" to howto.
  http://code.google.com/p/kgtp/wiki/HOWTO#Make_sure_current_Linux_kernel_debug_image_is_right
  http://code.google.com/p/kgtp/wiki/HOWTOCN#确定Linux内核调试镜像是正确的

* Update "tfind" in howto to make it more clear.
  http://code.google.com/p/kgtp/wiki/HOWTO#tfind
  http://code.google.com/p/kgtp/wiki/HOWTOCN#tfind

* Add "Show and save the tracepoint" to howto.
  http://code.google.com/p/kgtp/wiki/HOWTO#Show_and_save_the_tracepoint
  http://code.google.com/p/kgtp/wiki/HOWTOCN#显示和存储tracepoint

* Add "Handle the issue that Linux kernel debug image's address info is not
  same with Linux kernel when it running" to howto.
  http://code.google.com/p/kgtp/wiki/HOWTO#Handle_the_issue_that_Linux_kernel_debug_image's_address_in
  http://code.google.com/p/kgtp/wiki/HOWTOCN#处理Linux内核调试镜像地址信息和Linux内核执行时

* Add "Howto handle the function is there but set tracepoint on it got fail" to howto.
  http://code.google.com/p/kgtp/wiki/HOWTO#Howto_handle_the_function_is_there_but_set_tracepoint_on_it_got
  http://code.google.com/p/kgtp/wiki/HOWTOCN#这个函数确实存在但是设置tracepoint到上面会失败

* Fix bug of getmod.py with new GDB.

* Add new function "Read memory of user space program directly"
  http://code.google.com/p/kgtp/wiki/HOWTO#Read_memory_of_user_space_program_directly
  http://code.google.com/p/kgtp/wiki/HOWTOCN#直接读用户层程序的内存

* Add new function "collect stack (for backtrace) of user space program in tracepoint"
  http://code.google.com/p/kgtp/wiki/HOWTO#collect_stack_(for_backtrace)_of_user_space_program_in_tracepoin
  http://code.google.com/p/kgtp/wiki/HOWTOCN#在tracepoint收集用户层程序的栈信息(可用来做backt

* Add new introduce about howto show more than one variable with one GDB commands in "Access memory directly" of howto.
  http://code.google.com/p/kgtp/wiki/HOWTO#Access_memory_directly
  http://code.google.com/p/kgtp/wiki/HOWTOCN#直接访问内存
  Thanks help from qw.hust.

* Update some sections of howto to make it more clear.

* Fix bug in getmod.c.  Thanks report from scorpionfish.

*** 20120424

* https://lkml.org/lkml/2012/4/24/194
  https://lkml.org/lkml/2012/4/24/195
  https://lkml.org/lkml/2012/4/24/196
  https://lkml.org/lkml/2012/4/24/197

* http://kgtp.googlecode.com/files/kgtp_20120424.tar.bz2
  svn checkout https://kgtp.googlecode.com/svn/tags/20120424

* Update "How to use /sys/kernel/debug/gtpframe_pipe" in howto.
  http://code.google.com/p/kgtp/wiki/HOWTO#How_to_use_/sys/kernel/debug/gtpframe_pipe

* Add How to handle "Unsupported operator (null) (52) in expression." to howto.
  http://code.google.com/p/kgtp/wiki/HOWTO#How_to_handle_"Unsupported_operator_(null)_(52)_in_expressi

* Separate actions and actions src to handle the status
  that will delete some actions.

* Add $bt to collect the stack and update the stack dump in the howto to make
  it more clear.
  http://code.google.com/p/kgtp/wiki/HOWTO#Howto_backtrace_(stack_dump)

* Update the format of example in the HOWTO to make it more clear.

* Remove the crc check and suport QStartNoAckMode+.

* Add Chinese howto.
  http://code.google.com/p/kgtp/wiki/HOWTOCN

* Update a lot of parts of howto to make it more clear.
  http://code.google.com/p/kgtp/wiki/HOWTO
  http://code.google.com/p/kgtp/wiki/HOWTOCN

* Add introduce of $_ret to howto.
  http://code.google.com/p/kgtp/wiki/HOWTO#Collect_stack_of_current_function's_caller_with_$_ret

*** 20120406

* https://lkml.org/lkml/2012/4/7/35

* http://kgtp.googlecode.com/files/kgtp_20120406.tar.bz2
  svn checkout https://kgtp.googlecode.com/svn/tags/20120406

* Fix build error with Linux kernel that older than 2.6.34 in ARM.
  Thanks report and help from Adam Huang (sniperpr).

* Update howto.txt (http://code.google.com/p/kgtp/wiki/HOWTO) to
  make it more clear.

* Update the GDB in http://code.google.com/p/gdbt/ (add static binary
  and change the source of code) to make people use it easily.

* Fix bug of add-ons/hotcode.py when it use with user space task.

* add-ons/hotcode.py output hot code info to html file.

* getmod.py auto call "set pagination off".

*** 20120319

* https://lkml.org/lkml/2012/3/19/210

* http://kgtp.googlecode.com/files/kgtp_20120319.tar.bz2
  svn checkout https://kgtp.googlecode.com/svn/tags/20120319

* Fix bug with GDB RSP package sum check.

* Increase the speed of access to trace state variables.

* Increase the speed of agent code execution.

* Remove the current agent code "printf" support because GDB will support new
  format of agent code "printf".

* Fix bug about access $current_task_pid.

* Add new debug switch GTP_DEBUG_V (just for developer).

* Add new add-ons hotcode.py.  It can show the hotest code line
  in the Kernel or user space program through parse and record
  the pc address in the interrupt handler.

*** 20120224

* https://lkml.org/lkml/2012/2/26/127

* http://kgtp.googlecode.com/files/kgtp_20120224.tar.bz2
  svn checkout https://kgtp.googlecode.com/svn/tags/20120224

* Fix build error with Linux Kernel 3.0.x version.
  Thanks for report from sam.wanshan.

* Make getgtprsp.pl support all special trace state variables.

* Fix the bug that set the id of FID_PAGE_BEGIN inside gtp_rb.

* Change code to ignore the task that read the /sys/kernel/debug/gtpframe_pipe
  in default.  And add special trace state variable $pipe_trace to control it.

* Fix error of doc about $ignore_error.

* Add $current_task_pid to access to get_current()->pid.

* Remove GTP_VAR_NOT_GETV, GTP_VAR_NOT_SETV and GTP_VAR_NOT_TRACEV.

* Fix bug in gtp_frame_file_header that affect stack when src of conditon
  or action is bigger than 200.

*** 20120131

* https://lkml.org/lkml/2012/1/31/215

* http://kgtp.googlecode.com/files/kgtp_20120131.tar.bz2
  svn checkout https://kgtp.googlecode.com/svn/tags/20120131

* Add ignore gtp.ko function to getmod.py.

* Add support for GDB rsp package "qXfer:traceframe-info:read".
  Then tfind mode will show the memory that is not in traceframe
  as "<unavailable>".  It is more accurate than before.
  It fixed issue 1 and Issue 101.

* Fix bug of gtp_rb page release in function gtp_rb_page_free.

* Fix bug of gtp_rb_put_page that is used by gtpframe_pipe.

* Add define for perf_event_enable and perf_event_disable in gtp.c
  and perf_event.c because both of them EXPORT_SYMBOL_GPL in Linux Kernel 3.3.

*** 20111218

* https://lkml.org/lkml/2011/12/18/36

* http://kgtp.googlecode.com/files/kgtp_20111218.tar.bz2
  svn checkout https://kgtp.googlecode.com/svn/tags/20111218

* Add gtp_rb to be the new frame buffer to make trace record speed up and more
  friendly to the older version Linux kernel.

* Rename gtp.patch to gtp_for_review.patch.

* Add Linux Kernel patch gtp_3.0_to_upstream.patch(3.0 to upstream),
  gtp_2.6.39.patch(2.6.39), gtp_2.6.33_to_2.6.38.patch(2.6.33 to 2.6.38)
  and gtp_older_to_2.6.32.patch(older to 2.6.32).
  Then you can include KGTP in your Kernel source tree.

* Add special trace state variable $gtp_version to show the version of KGTP.

* Fix some build errors of gtp_for_review.patch.

* Fix some build errors in ARM.

* Update doc.

*** 20111111

* https://lkml.org/lkml/2011/11/14/4

* http://kgtp.googlecode.com/files/kgtp_20111111.tar.bz2
  svn checkout https://kgtp.googlecode.com/svn/tags/20111111

* post_handler will make kprobes-optimization cannot be used.  So make
  gtp_kp_post_handler be call only when tpe->step is true.

* Make rdtsc_current to x86 special.

* Register easy Kprobe handler to speed up it when no tracepoint access
  $cooked_clock, $cooked_rdtsc or "pc_pe_" tvariable.

* Fix a bug of ARM build.

* Add a doc for use KGTP with Android in
  https://code.google.com/p/kgtp/wiki/HowToUseKGTPinAndroid