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<?xml version="1.0" encoding="gb2312"?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"/><title>linux for ppc chapter 17               jacobw </title></head><body><center><h1>BBS 水木清华站∶精华区</h1></center><a name="top"></a>发信人:&nbsp;plato&nbsp;(纯真年代),&nbsp;信区:&nbsp;Embedded&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />标&nbsp;&nbsp;题:&nbsp;linux&nbsp;for&nbsp;ppc&nbsp;chapter&nbsp;17&nbsp;<br />发信站:&nbsp;BBS&nbsp;水木清华站&nbsp;(Wed&nbsp;May&nbsp;30&nbsp;23:22:20&nbsp;2001)&nbsp;<br />&nbsp;<br />Next&nbsp;Previous&nbsp;Contents&nbsp;<br />----------------------------------------------------------------------------&nbsp;<br />----&nbsp;<br />17.&nbsp;Applications&nbsp;<br />17.1&nbsp;Standard&nbsp;GNU&nbsp;tools&nbsp;<br />Standard&nbsp;GNU&nbsp;tools&nbsp;(such&nbsp;as&nbsp;bash,&nbsp;ls,&nbsp;etc&nbsp;etc)&nbsp;are&nbsp;available&nbsp;in&nbsp;the&nbsp;MontaVis&nbsp;<br />ta&nbsp;distribution&nbsp;at:&nbsp;<a href="ftp://ftp.mvista.com/pub/CDK/1.2/latest/PowerPC.">ftp://ftp.mvista.com/pub/CDK/1.2/latest/PowerPC.</a>&nbsp;Even&nbsp;if&nbsp;<br />&nbsp;you&nbsp;are&nbsp;compiling&nbsp;them&nbsp;yourself,&nbsp;you&nbsp;can&nbsp;use&nbsp;the&nbsp;recipe&nbsp;in&nbsp;the&nbsp;%build&nbsp;porti&nbsp;<br />on&nbsp;of&nbsp;the&nbsp;SPEC&nbsp;files&nbsp;in&nbsp;the&nbsp;SRPMS&nbsp;to&nbsp;help.&nbsp;<br />17.2&nbsp;Standalone&nbsp;Shell&nbsp;<br />Also&nbsp;known&nbsp;as&nbsp;&quot;sash&quot;,&nbsp;this&nbsp;is&nbsp;a&nbsp;small&nbsp;standalone&nbsp;shell&nbsp;with&nbsp;minimal&nbsp;versions&nbsp;<br />&nbsp;of&nbsp;the&nbsp;most&nbsp;useful&nbsp;commands&nbsp;from&nbsp;/bin&nbsp;built&nbsp;in.&nbsp;See:&nbsp;<a href="http://www.canb.auug.o">http://www.canb.auug.o</a>&nbsp;<br />rg.au/~dbell/programs/sash-3.4.tar.gz.&nbsp;<br />Not&nbsp;to&nbsp;be&nbsp;confused&nbsp;with&nbsp;the&nbsp;CONFIG_SASH&nbsp;configuration&nbsp;option&nbsp;in&nbsp;many&nbsp;kernels&nbsp;<br />,&nbsp;which&nbsp;starts&nbsp;a&nbsp;shell&nbsp;at&nbsp;bootup&nbsp;with&nbsp;the&nbsp;proper&nbsp;process&nbsp;group&nbsp;settings,&nbsp;so&nbsp;&nbsp;<br />that&nbsp;signals&nbsp;like&nbsp;interrupt&nbsp;on&nbsp;CTRL-C&nbsp;work.&nbsp;Note&nbsp;that&nbsp;the&nbsp;two&nbsp;are&nbsp;often&nbsp;used&nbsp;<br />&nbsp;together.&nbsp;<br />17.3&nbsp;BusyBox&nbsp;<br /><a href="http://busybox.lineo.com/">http://busybox.lineo.com/</a>&nbsp;<br />BusyBox&nbsp;combines&nbsp;tiny&nbsp;versions&nbsp;of&nbsp;many&nbsp;common&nbsp;UNIX&nbsp;utilities&nbsp;into&nbsp;a&nbsp;single&nbsp;s&nbsp;<br />mall&nbsp;executable.&nbsp;It&nbsp;provides&nbsp;minimalist&nbsp;replacements&nbsp;for&nbsp;most&nbsp;of&nbsp;the&nbsp;utiliti&nbsp;<br />es&nbsp;you&nbsp;usually&nbsp;find&nbsp;in&nbsp;fileutils,&nbsp;shellutils,&nbsp;findutils,&nbsp;textutils,&nbsp;grep,&nbsp;gz&nbsp;<br />ip,&nbsp;tar,&nbsp;etc.&nbsp;BusyBox&nbsp;provides&nbsp;a&nbsp;fairly&nbsp;complete&nbsp;POSIX&nbsp;environment&nbsp;for&nbsp;any&nbsp;s&nbsp;<br />mall&nbsp;or&nbsp;embedded&nbsp;system.&nbsp;The&nbsp;utilities&nbsp;in&nbsp;BusyBox&nbsp;generally&nbsp;have&nbsp;fewer&nbsp;optio&nbsp;<br />ns&nbsp;than&nbsp;their&nbsp;full-featured&nbsp;GNU&nbsp;cousins;&nbsp;however,&nbsp;the&nbsp;options&nbsp;that&nbsp;are&nbsp;inclu&nbsp;<br />ded&nbsp;provide&nbsp;the&nbsp;expected&nbsp;functionality&nbsp;and&nbsp;behave&nbsp;very&nbsp;much&nbsp;like&nbsp;their&nbsp;GNU&nbsp;c&nbsp;<br />ounterparts.&nbsp;<br />Busybox&nbsp;has&nbsp;some&nbsp;problems&nbsp;with&nbsp;2.4.x&nbsp;Linux&nbsp;kernels.&nbsp;Patches&nbsp;available&nbsp;on&nbsp;req&nbsp;<br />uest&nbsp;from&nbsp;Denx.&nbsp;<br />17.4&nbsp;Web&nbsp;Servers&nbsp;<br />There&nbsp;are&nbsp;stacks&nbsp;to&nbsp;choose&nbsp;from.&nbsp;Here&nbsp;are&nbsp;just&nbsp;a&nbsp;few,&nbsp;which&nbsp;seem&nbsp;particularl&nbsp;<br />y&nbsp;well&nbsp;suited&nbsp;to&nbsp;embedded&nbsp;Linux&nbsp;work.&nbsp;Pick&nbsp;the&nbsp;one&nbsp;that&nbsp;has&nbsp;the&nbsp;features&nbsp;you&nbsp;<br />&nbsp;need.&nbsp;<br />Go&nbsp;Ahead&nbsp;<br /><a href="http://www.goahead.com/">http://www.goahead.com/</a>&nbsp;<br />The&nbsp;GoAhead&nbsp;embedded&nbsp;web&nbsp;server&nbsp;is&nbsp;part&nbsp;of&nbsp;the&nbsp;Hard&nbsp;Hat&nbsp;Linux&nbsp;distribution.&nbsp;<br />Boa&nbsp;<br /><a href="http://www.boa.org/">http://www.boa.org/</a>&nbsp;<br />Boa&nbsp;is&nbsp;a&nbsp;single-tasking&nbsp;HTTP&nbsp;server.&nbsp;That&nbsp;means&nbsp;that&nbsp;unlike&nbsp;traditional&nbsp;web&nbsp;&nbsp;<br />servers,&nbsp;it&nbsp;does&nbsp;not&nbsp;fork&nbsp;for&nbsp;each&nbsp;incoming&nbsp;connection,&nbsp;nor&nbsp;does&nbsp;it&nbsp;fork&nbsp;man&nbsp;<br />y&nbsp;copies&nbsp;of&nbsp;itself&nbsp;to&nbsp;handle&nbsp;multiple&nbsp;connections.&nbsp;It&nbsp;internally&nbsp;multiplexes&nbsp;<br />&nbsp;all&nbsp;of&nbsp;the&nbsp;ongoing&nbsp;HTTP&nbsp;connections,&nbsp;and&nbsp;forks&nbsp;only&nbsp;for&nbsp;CGI&nbsp;programs&nbsp;(which&nbsp;<br />&nbsp;must&nbsp;be&nbsp;separate&nbsp;processes),&nbsp;automatic&nbsp;directory&nbsp;generation,&nbsp;and&nbsp;automatic&nbsp;&nbsp;<br />file&nbsp;gunzipping.&nbsp;Preliminary&nbsp;tests&nbsp;show&nbsp;Boa&nbsp;is&nbsp;capable&nbsp;of&nbsp;handling&nbsp;several&nbsp;t&nbsp;<br />housand&nbsp;hits&nbsp;per&nbsp;second&nbsp;on&nbsp;a&nbsp;300&nbsp;MHz&nbsp;Pentium&nbsp;and&nbsp;dozens&nbsp;of&nbsp;hits&nbsp;per&nbsp;second&nbsp;o&nbsp;<br />n&nbsp;a&nbsp;lowly&nbsp;20&nbsp;MHz&nbsp;386/SX.&nbsp;<br />thttpd,&nbsp;mini_httpd,&nbsp;micro_httpd&nbsp;<br /><a href="http://www.acme.com/">http://www.acme.com/</a>&nbsp;<br />A&nbsp;collection&nbsp;of&nbsp;very&nbsp;small&nbsp;web&nbsp;servers,&nbsp;with&nbsp;varying&nbsp;degrees&nbsp;of&nbsp;functionalit&nbsp;<br />y.&nbsp;<br />17.5&nbsp;Graphical&nbsp;User&nbsp;Interface&nbsp;<br />Microwindows&nbsp;<br /><a href="http://microwindows.censoft.com/">http://microwindows.censoft.com/</a>&nbsp;<br />Microwindows&nbsp;is&nbsp;an&nbsp;Open&nbsp;Source&nbsp;project&nbsp;aimed&nbsp;at&nbsp;bringing&nbsp;the&nbsp;features&nbsp;of&nbsp;mod&nbsp;<br />ern&nbsp;graphical&nbsp;windowing&nbsp;environments&nbsp;to&nbsp;smaller&nbsp;devices&nbsp;and&nbsp;platforms.&nbsp;It&nbsp;al&nbsp;<br />lows&nbsp;applications&nbsp;to&nbsp;be&nbsp;built&nbsp;and&nbsp;tested&nbsp;on&nbsp;the&nbsp;Linux&nbsp;desktop,&nbsp;as&nbsp;well&nbsp;as&nbsp;cr&nbsp;<br />oss-compiled&nbsp;for&nbsp;the&nbsp;target&nbsp;device.&nbsp;<br />PicoGUI&nbsp;<br /><a href="http://pgui.sourceforge.net/">http://pgui.sourceforge.net/</a>&nbsp;<br />A&nbsp;small,&nbsp;portable,&nbsp;client/server&nbsp;GUI&nbsp;designed&nbsp;to&nbsp;work&nbsp;on&nbsp;many&nbsp;types&nbsp;of&nbsp;hardw&nbsp;<br />are&nbsp;including&nbsp;handheld&nbsp;computers.&nbsp;Includes&nbsp;layout&nbsp;manager&nbsp;and&nbsp;widgets.&nbsp;<br />17.6&nbsp;Java&nbsp;Virtual&nbsp;Machine&nbsp;<br />MontaVista&nbsp;have&nbsp;several&nbsp;JVM&nbsp;solutions&nbsp;for&nbsp;HardHat&nbsp;Linux.&nbsp;<br />A&nbsp;list&nbsp;of&nbsp;Java&nbsp;virtual&nbsp;machines,&nbsp;some&nbsp;of&nbsp;which&nbsp;are&nbsp;suitable&nbsp;for&nbsp;embedded&nbsp;Pow&nbsp;<br />erPC&nbsp;systems,&nbsp;is&nbsp;available&nbsp;at:&nbsp;<a href="http://www.geocities.com/marcoschmidt.geo/jav">http://www.geocities.com/marcoschmidt.geo/jav</a>&nbsp;<br />a.html&nbsp;<br />----------------------------------------------------------------------------&nbsp;<br />----&nbsp;<br />Next&nbsp;Previous&nbsp;Contents&nbsp;&nbsp;<br />&nbsp;<br />--&nbsp;<br />&nbsp;<br 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