如何从源代码编译TCL以在tclsh中启用内存命令 [英] How to compile TCL from source code to enable memory command in tclsh

问题描述

我正在尝试查找使用TCL编写的守护程序的内存泄漏问题，并且该守护程序在OSX上运行并继续监视SAN系统.

I am trying to find a memory leak problem of a daemon writing with TCL, and the daemon is running on OSX continue to monitor the systems of a SAN system.

在搜索了网络之后，我发现TCL专家说我必须使用TCL_MEM_DEBUG进行专门编译，该代码在 生成文件(CFLAGS中带有-DTCL_MEM_DEBUG).然后，Tcl将具有内存"命令来记录内存使用情况的状态.

After googling the Net, I found that TCL experts said that I have to compile with TCL_MEM_DEBUG specifically defined in the makefile (with -DTCL_MEM_DEBUG in the CFLAGS). Then Tcl will have the ‘memory’ command to log the status for memory usage.

根据TCL的手册页，要启用内存调试，应使用以下命令重新编译Tcl: 定义了TCL_MEM_DEBUG(例如通过将--enable-symbols = mem标志传递给 构建时配置脚本).这也将以非 Tcl_InitMemory的存根版本，将memory命令添加到Tcl.

According to the TCL’s man page, To enable memory debugging, Tcl should be recompiled from scratch with TCL_MEM_DEBUG defined (e.g. by passing the --enable-symbols=mem flag to the configure script when building). This will also compile in a non- stub version of Tcl_InitMemory to add the memory command to Tcl.

因此，我从SourceForge下载了源代码tcl8.6.1-src.tar.gz.解压到目录并更改为macosx子目录.但是用以下命令编译后

So, I downloaded the source code tcl8.6.1-src.tar.gz from SourceForge. Extracted to a directory and change to macosx subdirectory. But after compiling with following commands

sudo ./configure --enable-symbols=mem
sudo make
sudo make install NATIVE_TCLSH="/usr/local/bin/tclsh8.6"

尽管创建了新的tclsh(v8.6)，但内存"命令仍然无法使用.深入研究该过程后，我发现在config.log中创建了一些错误消息

Although new tclsh (v8.6) was created, but the ‘memory’ command still can not work. After digging into the process, I found that some error messages were created in config.log

configure: failed program was: 
| /* confdefs.h.  */ 
|  
| #define PACKAGE_NAME "tcl"
| #define PACKAGE_TARNAME "tcl" 
| #define PACKAGE_VERSION "8.6" 
| #define PACKAGE_STRING "tcl 8.6" 
| #define PACKAGE_BUGREPORT "" 
| /* end confdefs.h.  */ 
| #include <ac_nonexistent.h>

我也无法通过find命令找到"confdefs.h"文件.我怎么了?

I also can not find the 'confdefs.h' file by find command. What's wrong with me?

这是我的MBP的环境

MacBookPro8,2内存:4 GB，15英寸，2011年初，OS X 10.9.1(13B42)

MacBookPro8,2 Memory:4 GB, 15-inch, Early 2011, OS X 10.9.1 (13B42)

declare -x DEVELOPER_DIR="/Applications/Xcode.app/Contents/Developer"
declare -x PATH="/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/local/git/bin:/Applications/Server.app/Contents/ServerRoot/usr/bin:/Applications/Server.app/Contents/ServerRoot/usr/sbin"

如何解决该问题? 还是可以在启用TCL_MEM_DEBUG的情况下下载tcl软件包?

How to fix the problem? Or Is there any place to download a tcl package with TCL_MEM_DEBUG enable?

推荐答案

首先，您需要确保安装了正确的编译器.如果您还没有的话，请从Apple Store获得Xcode，因为其中包含了可靠的命令行编译器. (在配置过程中失败的测试是检查编译器的行为是否正常；您的行为不是！)

First of all, you need to make sure you have a working compiler installation. If you haven't already, get Xcode from the Apple Store as that includes a sane command-line compiler. (The test that is failing during configuration is a check that the compiler is behaving sanely; yours is not!)

做了吗?好.

接下来，仅安装到磁盘上的某些位置需要sudo(但是默认位置/usr/local是其中之一).您不应对其进行配置或编译.我将用来在OSX上构建和安装启用调试的Tcl的命令序列为:

Next, only installation to some locations on disk requires sudo (but the default location, /usr/local, is one of those places). You should not configure or compile with it. The sequence of commands that I would use to build and install a debug-enabled Tcl on OSX would be:

cd $the_unpacked_tcl_dir
cd unix
./configure --enable-symbols=mem
make
sudo make install

可调整项/注释:

1. 您可以在使用--prefix=/the/base/install/dir为这些位置配置Tcl的位置中安装Tcl(这会将tclsh放在/the/base/install/dir/bin中，并将Tcl共享库放置在/the/base/install/dir/lib中).如果默认情况下您选择的位置是可写的，则不需要sudo.
2. 您可以(也许应该)在make和make install之间运行测试套件.使用make test执行此操作.不要不以管理用户身份运行make test；这会使某些测试失败(例如，那些检查是否检测到不可写文件并将其报告为不可写的测试).
3. 您可以使用all而不是mem来启用更多的调试选项，尤其是在字节码编译器方面.
4. 完全使用--enable-symbols可能会大大降低性能，禁用更高级的C编译器选项，导致使用不同的内存跟踪，并为字节码引擎增加额外的开销以启用指令级跟踪.如果您想提高速度，请完全不用.
5. 如果您以前尝试过make，则应在./configure之后和make之前运行make clean. (您可以通过执行make clean all组合这些步骤；默认的make目标为all.)

1. You can install Tcl in locations provided you configure it for those locations with --prefix=/the/base/install/dir (which would put tclsh in /the/base/install/dir/bin and the Tcl shared library in /the/base/install/dir/lib). If the place you choose is writable by you by default, you do not need sudo.
2. You can (and maybe should) run the test suite between the make and the make install. Do this using make test. Do not run make test as the administrative user; this makes some tests fail (e.g., those that check that unwritable files are detected and reported as unwritable).
3. You can use all instead of mem to enable further debugging options, especially in relation to the bytecode compiler.
4. Using --enable-symbols at all may well reduce performance substantially, disabling the more advanced C compiler options, causing different memory tracking to be used, and adding additional overhead to the bytecode engine to enable instruction-level tracing. If you want speed, do not use it at all.
5. If you have tried to do make before, you should run make clean after ./configure and before make. (You can combine these steps by doing make clean all; the default make target is all.)

请注意，我在OSX(现在为Lion)上使用了很多启用调试功能的Tcl.这是经过测试的配置.发生的一切不是Tcl的错误.

Be aware that I use debug-enabled builds of Tcl on OSX (Mountain Lion right now) a lot; this is a tested configuration. Whatever is going on is not a bug with Tcl.

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