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+<!-- Copyright (C) 2003 Red Hat, Inc. -->
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+<HTML
+><HEAD
+><TITLE
+>Compiling a C++ Application</TITLE
+><meta name="MSSmartTagsPreventParsing" content="TRUE">
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+NAME="GENERATOR"
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+"><LINK
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+TITLE="eCos User Guide"
+HREF="ecos-user-guide.html"><LINK
+REL="UP"
+TITLE="Compiler and Linker Options"
+HREF="compiler-and-linker-options.html"><LINK
+REL="PREVIOUS"
+TITLE="Compiler and Linker Options"
+HREF="compiler-and-linker-options.html"><LINK
+REL="NEXT"
+TITLE="Debugging Techniques"
+HREF="debugging-techniques.html"></HEAD
+><BODY
+CLASS="SECT1"
+BGCOLOR="#FFFFFF"
+TEXT="#000000"
+LINK="#0000FF"
+VLINK="#840084"
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+><DIV
+CLASS="NAVHEADER"
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+SUMMARY="Header navigation table"
+WIDTH="100%"
+BORDER="0"
+CELLPADDING="0"
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+><TR
+><TH
+COLSPAN="3"
+ALIGN="center"
+>eCos User Guide</TH
+></TR
+><TR
+><TD
+WIDTH="10%"
+ALIGN="left"
+VALIGN="bottom"
+><A
+HREF="compiler-and-linker-options.html"
+ACCESSKEY="P"
+>Prev</A
+></TD
+><TD
+WIDTH="80%"
+ALIGN="center"
+VALIGN="bottom"
+>Chapter 26. Compiler and Linker Options</TD
+><TD
+WIDTH="10%"
+ALIGN="right"
+VALIGN="bottom"
+><A
+HREF="debugging-techniques.html"
+ACCESSKEY="N"
+>Next</A
+></TD
+></TR
+></TABLE
+><HR
+ALIGN="LEFT"
+WIDTH="100%"></DIV
+><DIV
+CLASS="SECT1"
+><H1
+CLASS="SECT1"
+><A
+NAME="COMPILING-CPP-APP">Compiling a C++ Application</H1
+><P
+>The following command lines demonstrate the
+ <SPAN
+CLASS="emphasis"
+><I
+CLASS="EMPHASIS"
+>minimum</I
+></SPAN
+> set of options required to
+ compile and link an <SPAN
+CLASS="PRODUCTNAME"
+>eCos</SPAN
+> program written in C++.
+ </P
+><DIV
+CLASS="NOTE"
+><BLOCKQUOTE
+CLASS="NOTE"
+><P
+><B
+>Note: </B
+>Remember that when this manual shows
+ <B
+CLASS="COMMAND"
+><TT
+CLASS="REPLACEABLE"
+><I
+>TARGET-</I
+></TT
+>g++</B
+>
+ you should use the full name of the cross compiler,
+ e.g. <B
+CLASS="COMMAND"
+>i386-elf-g++</B
+>,
+ <B
+CLASS="COMMAND"
+>arm-elf-g++</B
+>, or
+ <B
+CLASS="COMMAND"
+>sh-elf-g++</B
+>. When compiling for the
+ synthetic Linux target, use the native
+ <B
+CLASS="COMMAND"
+>g++</B
+> which must have the features
+ required by <SPAN
+CLASS="PRODUCTNAME"
+>eCos</SPAN
+>.</P
+></BLOCKQUOTE
+></DIV
+><TABLE
+BORDER="5"
+BGCOLOR="#E0E0F0"
+WIDTH="70%"
+><TR
+><TD
+><PRE
+CLASS="SCREEN"
+>$ <TT
+CLASS="REPLACEABLE"
+><I
+>TARGET-</I
+></TT
+>g++ -c -I<TT
+CLASS="REPLACEABLE"
+><I
+>INSTALL_DIR</I
+></TT
+>/include -fno-rtti -fno-exceptions file.cxx
+$ <TT
+CLASS="REPLACEABLE"
+><I
+>TARGET-</I
+></TT
+>g++ -o program file.o -L<TT
+CLASS="REPLACEABLE"
+><I
+>INSTALL_DIR</I
+></TT
+>/lib -Ttarget.ld -nostdlib</PRE
+></TD
+></TR
+></TABLE
+><DIV
+CLASS="NOTE"
+><BLOCKQUOTE
+CLASS="NOTE"
+><P
+><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
+CLASS="FILENAME"
+><TT
+CLASS="REPLACEABLE"
+><I
+>BASE_DIR</I
+></TT
+>/packages/targets</TT
+>
+ file or <TT
+CLASS="FILENAME"
+><TT
+CLASS="REPLACEABLE"
+><I
+>BASE_DIR</I
+></TT
+>/examples/Makefile</TT
+>
+ or the “Global compiler flags” 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"
+WIDTH="70%"
+><TR
+><TD
+><PRE
+CLASS="SCREEN"
+>$ <TT
+CLASS="REPLACEABLE"
+><I
+>TARGET-</I
+></TT
+>g++ -c -I<TT
+CLASS="REPLACEABLE"
+><I
+>INSTALL_DIR</I
+></TT
+>/include -I. -ffunction-sections -fdata-sections -fno-rtti \
+ -fno-exceptions -finit-priority -g -O2 file.cxx
+$ <TT
+CLASS="REPLACEABLE"
+><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
+></TD
+></TR
+></TABLE
+></BLOCKQUOTE
+></DIV
+></DIV
+><DIV
+CLASS="NAVFOOTER"
+><HR
+ALIGN="LEFT"
+WIDTH="100%"><TABLE
+SUMMARY="Footer navigation table"
+WIDTH="100%"
+BORDER="0"
+CELLPADDING="0"
+CELLSPACING="0"
+><TR
+><TD
+WIDTH="33%"
+ALIGN="left"
+VALIGN="top"
+><A
+HREF="compiler-and-linker-options.html"
+ACCESSKEY="P"
+>Prev</A
+></TD
+><TD
+WIDTH="34%"
+ALIGN="center"
+VALIGN="top"
+><A
+HREF="ecos-user-guide.html"
+ACCESSKEY="H"
+>Home</A
+></TD
+><TD
+WIDTH="33%"
+ALIGN="right"
+VALIGN="top"
+><A
+HREF="debugging-techniques.html"
+ACCESSKEY="N"
+>Next</A
+></TD
+></TR
+><TR
+><TD
+WIDTH="33%"
+ALIGN="left"
+VALIGN="top"
+>Compiler and Linker Options</TD
+><TD
+WIDTH="34%"
+ALIGN="center"
+VALIGN="top"
+><A
+HREF="compiler-and-linker-options.html"
+ACCESSKEY="U"
+>Up</A
+></TD
+><TD
+WIDTH="33%"
+ALIGN="right"
+VALIGN="top"
+>Debugging Techniques</TD
+></TR
+></TABLE
+></DIV
+></BODY
+></HTML
+>
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