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<!-- Copyright (C) 2003 Red Hat, Inc.                                -->
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>The following command lines demonstrate the
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> set of options required to
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            <B
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>
            you should use the full name of the cross compiler,
            e.g. <B
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>,
            <B
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>, or
            <B
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>sh-elf-g++</B
>. When compiling for the
            synthetic Linux target, use the native
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></TD
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><B
>Note: </B
>Certain targets may require extra options,
            for example the SPARClite architectures require the option
            <TT
CLASS="OPTION"
>-mcpu=sparclite</TT
>. Examine the
            <TT
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>
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>/examples/Makefile</TT
>
            or the &#8220;Global compiler flags&#8221; option
            (CYGBLD_GLOBAL_CFLAGS) in your generated
            <SPAN
CLASS="PRODUCTNAME"
>eCos</SPAN
> configuration) to see if any extra options are
            required, and if so, what they are.</P
><P
>The following command lines use some other options
            which are recommended because they use the
            <I
CLASS="FIRSTTERM"
>selective linking</I
> feature:</P
><TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
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><TR
><TD
><PRE
CLASS="SCREEN"
>$ <TT
CLASS="REPLACEABLE"
><I
>TARGET-</I
></TT
>g++ -c -I<TT
CLASS="REPLACEABLE"
><I
>INSTALL_DIR</I
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>/include -I. -ffunction-sections -fdata-sections -fno-rtti \
          -fno-exceptions -finit-priority -g -O2 file.cxx
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><I
>TARGET-</I
></TT
>g++ -o program file.o -W1,--gc-sections -g -O2 -L<TT
CLASS="REPLACEABLE"
><I
>INSTALL_DIR</I
></TT
>/lib -Ttarget.ld  -nostdlib</PRE
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1	28	unneback	`<!-- Copyright (C) 2003 Red Hat, Inc. -->`
2			`<!-- This material may be distributed only subject to the terms -->`
3			`<!-- and conditions set forth in the Open Publication License, v1.0 -->`
4			`<!-- or later (the latest version is presently available at -->`
5			`<!-- http://www.opencontent.org/openpub/). -->`
6			`<!-- Distribution of the work or derivative of the work in any -->`
7			`<!-- standard (paper) book form is prohibited unless prior -->`
8			`<!-- permission is obtained from the copyright holder. -->`
9			`<HTML`
10			`><HEAD`
11			`><TITLE`
12			`>Compiling a C++ Application</TITLE`
13			`><meta name="MSSmartTagsPreventParsing" content="TRUE">`
14			`<META`
15			`NAME="GENERATOR"`
16			`CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+`
17			`"><LINK`
18			`REL="HOME"`
19			`TITLE="eCos User Guide"`
20			`HREF="ecos-user-guide.html"><LINK`
21			`REL="UP"`
22			`TITLE="Compiler and Linker Options"`
23			`HREF="compiler-and-linker-options.html"><LINK`
24			`REL="PREVIOUS"`
25			`TITLE="Compiler and Linker Options"`
26			`HREF="compiler-and-linker-options.html"><LINK`
27			`REL="NEXT"`
28			`TITLE="Debugging Techniques"`
29			`HREF="debugging-techniques.html"></HEAD`
30			`><BODY`
31			`CLASS="SECT1"`
32			`BGCOLOR="#FFFFFF"`
33			`TEXT="#000000"`
34			`LINK="#0000FF"`
35			`VLINK="#840084"`
36			`ALINK="#0000FF"`
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41			`WIDTH="100%"`
42			`BORDER="0"`
43			`CELLPADDING="0"`
44			`CELLSPACING="0"`
45			`><TR`
46			`><TH`
47			`COLSPAN="3"`
48			`ALIGN="center"`
49			`>eCos User Guide</TH`
50			`></TR`
51			`><TR`
52			`><TD`
53			`WIDTH="10%"`
54			`ALIGN="left"`
55			`VALIGN="bottom"`
56			`><A`
57			`HREF="compiler-and-linker-options.html"`
58			`ACCESSKEY="P"`
59			`>Prev</A`
60			`></TD`
61			`><TD`
62			`WIDTH="80%"`
63			`ALIGN="center"`
64			`VALIGN="bottom"`
65			`>Chapter 26. Compiler and Linker Options</TD`
66			`><TD`
67			`WIDTH="10%"`
68			`ALIGN="right"`
69			`VALIGN="bottom"`
70			`><A`
71			`HREF="debugging-techniques.html"`
72			`ACCESSKEY="N"`
73			`>Next</A`
74			`></TD`
75			`></TR`
76			`></TABLE`
77			`><HR`
78			`ALIGN="LEFT"`
79			`WIDTH="100%"></DIV`
80			`><DIV`
81			`CLASS="SECT1"`
82			`><H1`
83			`CLASS="SECT1"`
84			`><A`
85			`NAME="COMPILING-CPP-APP">Compiling a C++ Application</H1`
86			`><P`
87			`>The following command lines demonstrate the`
88			`<SPAN`
89			`CLASS="emphasis"`
90			`><I`
91			`CLASS="EMPHASIS"`
92			`>minimum</I`
93			`></SPAN`
94			`> set of options required to`
95			`compile and link an <SPAN`
96			`CLASS="PRODUCTNAME"`
97			`>eCos</SPAN`
98			`> program written in C++.`
99			`</P`
100			`><DIV`
101			`CLASS="NOTE"`
102			`><BLOCKQUOTE`
103			`CLASS="NOTE"`
104			`><P`
105			`><B`
106			`>Note: </B`
107			`>Remember that when this manual shows`
108			`<B`
109			`CLASS="COMMAND"`
110			`><TT`
111			`CLASS="REPLACEABLE"`
112			`><I`
113			`>TARGET-</I`
114			`></TT`
115			`>g++</B`
116			`>`
117			`you should use the full name of the cross compiler,`
118			`e.g. <B`
119			`CLASS="COMMAND"`
120			`>i386-elf-g++</B`
121			`>,`
122			`<B`
123			`CLASS="COMMAND"`
124			`>arm-elf-g++</B`
125			`>, or`
126			`<B`
127			`CLASS="COMMAND"`
128			`>sh-elf-g++</B`
129			`>. When compiling for the`
130			`synthetic Linux target, use the native`
131			`<B`
132			`CLASS="COMMAND"`
133			`>g++</B`
134			`> which must have the features`
135			`required by <SPAN`
136			`CLASS="PRODUCTNAME"`
137			`>eCos</SPAN`
138			`>.</P`
139			`></BLOCKQUOTE`
140			`></DIV`
141			`><TABLE`
142			`BORDER="5"`
143			`BGCOLOR="#E0E0F0"`
144			`WIDTH="70%"`
145			`><TR`
146			`><TD`
147			`><PRE`
148			`CLASS="SCREEN"`
149			`>$ <TT`
150			`CLASS="REPLACEABLE"`
151			`><I`
152			`>TARGET-</I`
153			`></TT`
154			`>g++ -c -I<TT`
155			`CLASS="REPLACEABLE"`
156			`><I`
157			`>INSTALL_DIR</I`
158			`></TT`
159			`>/include -fno-rtti -fno-exceptions file.cxx`
160			`$ <TT`
161			`CLASS="REPLACEABLE"`
162			`><I`
163			`>TARGET-</I`
164			`></TT`
165			`>g++ -o program file.o -L<TT`
166			`CLASS="REPLACEABLE"`
167			`><I`
168			`>INSTALL_DIR</I`
169			`></TT`
170			`>/lib -Ttarget.ld -nostdlib</PRE`
171			`></TD`
172			`></TR`
173			`></TABLE`
174			`><DIV`
175			`CLASS="NOTE"`
176			`><BLOCKQUOTE`
177			`CLASS="NOTE"`
178			`><P`
179			`><B`
180			`>Note: </B`
181			`>Certain targets may require extra options,`
182			`for example the SPARClite architectures require the option`
183			`<TT`
184			`CLASS="OPTION"`
185			`>-mcpu=sparclite</TT`
186			`>. Examine the`
187			`<TT`
188			`CLASS="FILENAME"`
189			`><TT`
190			`CLASS="REPLACEABLE"`
191			`><I`
192			`>BASE_DIR</I`
193			`></TT`
194			`>/packages/targets</TT`
195			`>`
196			`file or <TT`
197			`CLASS="FILENAME"`
198			`><TT`
199			`CLASS="REPLACEABLE"`
200			`><I`
201			`>BASE_DIR</I`
202			`></TT`
203			`>/examples/Makefile</TT`
204			`>`
205			`or the “Global compiler flags” option`
206			`(CYGBLD_GLOBAL_CFLAGS) in your generated`
207			`<SPAN`
208			`CLASS="PRODUCTNAME"`
209			`>eCos</SPAN`
210			`> configuration) to see if any extra options are`
211			`required, and if so, what they are.</P`
212			`><P`
213			`>The following command lines use some other options`
214			`which are recommended because they use the`
215			`<I`
216			`CLASS="FIRSTTERM"`
217			`>selective linking</I`
218			`> feature:</P`
219			`><TABLE`
220			`BORDER="5"`
221			`BGCOLOR="#E0E0F0"`
222			`WIDTH="70%"`
223			`><TR`
224			`><TD`
225			`><PRE`
226			`CLASS="SCREEN"`
227			`>$ <TT`
228			`CLASS="REPLACEABLE"`
229			`><I`
230			`>TARGET-</I`
231			`></TT`
232			`>g++ -c -I<TT`
233			`CLASS="REPLACEABLE"`
234			`><I`
235			`>INSTALL_DIR</I`
236			`></TT`
237			`>/include -I. -ffunction-sections -fdata-sections -fno-rtti \`
238			`-fno-exceptions -finit-priority -g -O2 file.cxx`
239			`$ <TT`
240			`CLASS="REPLACEABLE"`
241			`><I`
242			`>TARGET-</I`
243			`></TT`
244			`>g++ -o program file.o -W1,--gc-sections -g -O2 -L<TT`
245			`CLASS="REPLACEABLE"`
246			`><I`
247			`>INSTALL_DIR</I`
248			`></TT`
249			`>/lib -Ttarget.ld -nostdlib</PRE`
250			`></TD`
251			`></TR`
252			`></TABLE`
253			`></BLOCKQUOTE`
254			`></DIV`
255			`></DIV`
256			`><DIV`
257			`CLASS="NAVFOOTER"`
258			`><HR`
259			`ALIGN="LEFT"`
260			`WIDTH="100%"><TABLE`
261			`SUMMARY="Footer navigation table"`
262			`WIDTH="100%"`
263			`BORDER="0"`
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268			`WIDTH="33%"`
269			`ALIGN="left"`
270			`VALIGN="top"`
271			`><A`
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273			`ACCESSKEY="P"`
274			`>Prev</A`
275			`></TD`
276			`><TD`
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278			`ALIGN="center"`
279			`VALIGN="top"`
280			`><A`
281			`HREF="ecos-user-guide.html"`
282			`ACCESSKEY="H"`
283			`>Home</A`
284			`></TD`
285			`><TD`
286			`WIDTH="33%"`
287			`ALIGN="right"`
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289			`><A`
290			`HREF="debugging-techniques.html"`
291			`ACCESSKEY="N"`
292			`>Next</A`
293			`></TD`
294			`></TR`
295			`><TR`
296			`><TD`
297			`WIDTH="33%"`
298			`ALIGN="left"`
299			`VALIGN="top"`
300			`>Compiler and Linker Options</TD`
301			`><TD`
302			`WIDTH="34%"`
303			`ALIGN="center"`
304			`VALIGN="top"`
305			`><A`
306			`HREF="compiler-and-linker-options.html"`
307			`ACCESSKEY="U"`
308			`>Up</A`
309			`></TD`
310			`><TD`
311			`WIDTH="33%"`
312			`ALIGN="right"`
313			`VALIGN="top"`
314			`>Debugging Techniques</TD`
315			`></TR`
316			`></TABLE`
317			`></DIV`
318			`></BODY`
319			`></HTML`
320			`>`

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