一、TI xDC工具入门简介  转载来自于TI XDC工具入门简介 1.XDC(Express DSP Component)是TI提供的一个命令行工具,它可以生成并使用实时软件组件包,它包括一系列工具，这些工具可以允许你将你的C语言代码组织成类似于java的包管理方式，具有面向对象的特性，因为它还有一个名字，叫做eXpanDed C.



2.以上两图说明了XDC的工作方式：通过相关文件设定操作指令，读入源码、库文件以及已经存在的组件包最终生成可执行文件。

3.Package------XDC工作的基本单元。包括有：源码、库文件以及元数据；元数据这包含有该包的版本信息和依赖信息，以及模块（Module）信息。

4.XDC使用方法：




5.XDC需要的文件：config.bld  package.bld  package.xdc

Package.xdc -------------描述该包的名称，版本信息，依赖文件，模块信息等


Config.bld --------------描述XDC要使用的编译工具的相关信息，如不同CPU所使用的编译工具目录，每种编译工具的编译选项，连接选项等基本信息；


Package.bld -------------------描述对于该包需要生成的平台，profile（debug，release）。通过Javascript脚本添加源码到生成执行文件的信息中。

Package.mak-------------------由XDC生成的文件，用于最终编译可执行文件。

6.XDC工作流程：

7.使用XDC所需的文件：源码、package.bld、package.xdc、config.bld。同时需要通过shell脚本将DVEVM的安装位置导出为环境变量。

各代码如下：

Config.bld样本代码: 1 + expand sourceview plaincopy to clipboardprint? 2 var MVArm9 = xdc.useModule("gnu.targets.MVArm9"); 3 MVArm9.rootDir = "/opt/DVS357/mv_pro_4.0/montavista/pro/devkit/arm/v5t_le"; 4 MVArm9.lnkOpts.suffix = "-lpthread " + MVArm9.lnkOpts.suffix; 5 var Linux86=xdc.useModule("gnu.targets.Linux86"); 6 Linux86.rootDir = "/usr"; 7 Linux86.lnkOpts.suffix = "-lpthread " + Linux86.lnkOpts.suffix; 8 Build.targets = [ Linux86,MVArm9,]; 9 var MVArm9 = xdc.useModule("gnu.targets.MVArm9"); 10 MVArm9.rootDir = "/opt/DVS357/mv_pro_4.0/montavista/pro/devkit/arm/v5t_le"; 11 MVArm9.lnkOpts.suffix = "-lpthread " + MVArm9.lnkOpts.suffix; 12 var Linux86=xdc.useModule("gnu.targets.Linux86"); 13 Linux86.rootDir = "/usr"; 14 Linux86.lnkOpts.suffix = "-lpthread " + Linux86.lnkOpts.suffix; 15 Build.targets = [ Linux86,MVArm9,]; Runxdc.sh样本代码: 1 view plaincopy to clipboardprint? 2 #! /bin/sh 3 # import install paths 4 # putting the first period before the shell invokation keeps the changes 5 # to environment variables set here. Otherwise, changes to environment 6 # are only within the context of the executed script 7 8 ./setpaths.sh 9 # Define search paths for included packages 10 export XDCPATH="$CE_INSTALL_DIR/packages" 11 # Define options for execution 12 export XDCBUILDCFG=$(pwd)"/config.bld 13 # Execute xdc command to make all packages 14 15 /opt/DVS357/dvevm_1_20/xdc_2_94/xdc $@ -P * 16 #! /bin/sh 17 # import install paths 18 # putting the first period before the shell invokation keeps the changes 19 # to environment variables set here. Otherwise, changes to environment 20 # are only within the context of the executed script 21 ./setpaths.sh 22 # Define search paths for included packages 23 export XDCPATH="$CE_INSTALL_DIR/packages" 24 # Define options for execution 25 export XDCBUILDCFG=$(pwd)"/config.bld 26 # Execute xdc command to make all packages 27 /opt/DVS357/dvevm_1_20/xdc_2_94/xdc $@ -P * Setpaths.sh样本代码: 1 #!/bin/sh 2 3 export DVEVM_INSTALL_DIR="/opt/DVS357/dvevm_1_20/" 4 export BIOS_INSTALL_DIR=$DVEVM_INSTALL_DIR/bios_5_31_01 5 export CG_INSTALL_DIR=$DVEVM_INSTALL_DIR/cg6x_6_0_14 6 export CMEM_INSTALL_DIR=$DVEVM_INSTALL_DIR/cmem_1_02 7 export CE_INSTALL_DIR=$DVEVM_INSTALL_DIR/codec_engine_1_10_01 8 export CS_INSTALL_DIR=$DVEVM_INSTALL_DIR/codec_servers_1_23 9 export DSPLINK_INSTALL_DIR=$DVEVM_INSTALL_DIR/dsplink_1_30_08_02 10 export FMWK_INSTALL_DIR=$DVEVM_INSTALL_DIR/framework_components_1_10_04 11 export XDAIS_INSTALL_DIR=$DVEVM_INSTALL_DIR/xdais_5_10 12 export XDC_INSTALL_DIR=$DVEVM_INSTALL_DIR/xdc_2_94 13 14 export PATH=$XDC_INSTALL_DIR:$PATH 15 #!/bin/sh 16 export DVEVM_INSTALL_DIR="/opt/DVS357/dvevm_1_20/" 17 export BIOS_INSTALL_DIR=$DVEVM_INSTALL_DIR/bios_5_31_01 18 export CG_INSTALL_DIR=$DVEVM_INSTALL_DIR/cg6x_6_0_14 19 export CMEM_INSTALL_DIR=$DVEVM_INSTALL_DIR/cmem_1_02 20 export CE_INSTALL_DIR=$DVEVM_INSTALL_DIR/codec_engine_1_10_01 21 export CS_INSTALL_DIR=$DVEVM_INSTALL_DIR/codec_servers_1_23 22 export DSPLINK_INSTALL_DIR=$DVEVM_INSTALL_DIR/dsplink_1_30_08_02 23 export FMWK_INSTALL_DIR=$DVEVM_INSTALL_DIR/framework_components_1_10_04 24 export XDAIS_INSTALL_DIR=$DVEVM_INSTALL_DIR/xdais_5_10 25 export XDC_INSTALL_DIR=$DVEVM_INSTALL_DIR/xdc_2_94 26 export PATH=$XDC_INSTALL_DIR:$PATH package.bld样本代码: 1 + expand sourceview plaincopy to clipboardprint? 2 var targs = [MVArm9, Linux86]; 3 var profiles = ["debug", "release"]; 4 // Define the base name for the executable(s) built 5 var basename = "app"; 6 // The following code uses the java.io.File.list() method to generate an array 7 // of all files in the current directory ('.') and then sorts out .c files 8 var sources = java.io.File('.').list(); 9 var csources = []; 10 for (var i = 0; i < sources.length; i++){ 11 if(String(sources[i]).match(/.*.c$/)) 12 csources.push(sources[i]); 13 } 14 15 // The build phase cycles through the arrays of build targets and profiles 16 // and adds an executable for each combination 17 18 for (var i = 0; i < targs.length; i++) { 19 for(var j = 0; j < profiles.length; j++){ 20 Pkg.addExecutable( basename + "_" + profiles[j], targs[i], 21 targs[i].platform, { 22 cfgScript: null, 23 profile: profiles[j], 24 } 25 ).addObjects( csources ); 26 } 27 } 28 var targs = [MVArm9, Linux86]; 29 var profiles = ["debug", "release"]; 30 // Define the base name for the executable(s) built 31 var basename = "app"; 32 // The following code uses the java.io.File.list() method to generate an array 33 // of all files in the current directory ('.') and then sorts out .c files 34 var sources = java.io.File('.').list(); 35 var csources = []; 36 for (var i = 0; i < sources.length; i++){ 37 if(String(sources[i]).match(/.*.c$/)) 38 csources.push(sources[i]); 39 } 40 // The build phase cycles through the arrays of build targets and profiles 41 // and adds an executable for each combination 42 for (var i = 0; i < targs.length; i++) { 43 for(var j = 0; j < profiles.length; j++){ 44 Pkg.addExecutable( basename + "_" + profiles[j], targs[i], 45 targs[i].platform, { 46 cfgScript: null, 47 profile: profiles[j], 48 } 49 ).addObjects( csources ); 50 } 51 }  

重点来了：

二、XDC工具使用示例（转载来自于一个牛人文档）

 内容很长，点击跳转到原文   接着上文的进度继续 lesson 7 实现在第二课看到的 Bench模块  1）指定模块 　　根据RTSC惯例，可以在Bench.xdc源文件中找到acme.utils.Bench模块的说明书。 acme/utils/package.xdc 1 /*! Collection of utility modules */ 2 package acme.utils { 3 module Bench; 4 };   acme/utils/Bench.xdc 1 /*! Benchmark timing support */ 2 @ModuleStartup 3 module Bench { 4 5 /*! Enable/disable benchmark functions */ 6 config Bool enableFlag = true; 7 8 /*! Start the benchmark */ 9 Void begin(String msg); 10 11 /*! End the benchmark and print the current time */ 12 Void end(); 13 14 internal: 15 16 struct Module_State { 17 String beginMsg; /* current begin() message */ 18 Int beginClock; /* begin() start time */ 19 Int overhead; /* timing overhead factor */ 20 }; 21 } 通常，任何出现在XDCspec internal 关键字后的声明，不管是内容、类型、配置或者是函数，通常会支持这个模块的私有实现的一些方面。因此，客户端不应该在它们自己的模块或程序中使用这些内部的特性。在Bench 模块里，它的内部实现使用了私有变量来保留状态信息，在模块的公有函数Bench_begin和Bench_end之间。 2）实现这个模块（目标域） acme.utils.Bench的实现部分在Bench.c中，包含主体三个函数。 acme/utils/Bench.c 1 #include 2 #include 3 #include "package/internal/Bench.xdc.h" 4 5 #include 6 7 Int Bench_Module_startup(Int state) 8 { 9 Bench_begin(NULL); 10 Bench_end(); /* first-time calibration benchmark */ 11 12 return Startup_DONE; 13 } 14 15 Void Bench_begin(String msg) 16 { 17 if (Bench_enableFlag) { 18 module->beginClock = clock(); 19 module->beginMsg = msg; 20 } 21 } 22 23 Void Bench_end() 24 { 25 if (Bench_enableFlag) { 26 Int elapsed = clock() - module->beginClock; /* elapsed time between now and last begin() */ 27 if (module->beginMsg == NULL) { /* first-time calibration call */ 28 module->overhead = elapsed; /* retain elapsed time for later correction */ 29 } 30 else { /* correct elapsed time and print result */ 31 elapsed -= module->overhead; 32 System_printf("%s [%d] ", module->beginMsg, elapsed); 33 } 34 } 35 } 3）实现模块（meta-domain）  acme/utils/Bench.xs 1 function module$use() 2 { 3 xdc.useModule('xdc.runtime.Startup'); 4 xdc.useModule('xdc.runtime.System'); 5 } 6 7 function module$static$init(obj) 8 { 9 obj.beginMsg = null; 10 obj.beginClock = 0; 11 obj.overhead = 0; 12 } 4）创建包 与第六课不同，acme.utils包没有包含任何可执行程序。  acme/utils/package.bld var Build = xdc.useModule('xdc.bld.BuildEnvironment