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>Board Config File</TITLE
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>DejaGnu: The GNU Testing Framework</TH
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>Customizing DejaGnu</TD
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>Board Config File</H1
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>The board config file is where board specfic config data
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is stored. A board config file contains all the higher-level
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configuration settings. There is a rough inheritance scheme, where it is
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possible to base a new board description file on an existing one. There
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are also collections of custom procedures for common environments. For
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more information on adding a new board config file, go to the <A
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>Adding A New Board</A
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>An example board config file for a GNU simulator is as
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> is a procedure that sets the
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field name to the specified value. The procedures in square brackets
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>helper procedures</I
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are used to find parts of a tool chain required to build an executable
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image that may reside in various locations. This is mostly of use for
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when the startup code, the standard C lobraries, or the tool chain itself
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is part of your build tree.</P
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>Example 5. Board Config File</B
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CLASS="PROGRAMLISTING"
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> # This is a list of toolchains that are supported on this board.
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set_board_info target_install {sparc64-elf}
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# Load the generic configuration for this board. This will define any
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# routines needed by the tool to communicate with the board.
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load_generic_config "sim"
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# We need this for find_gcc and *_include_flags/*_link_flags.
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load_base_board_description "basic-sim"
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# Use long64 by default.
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process_multilib_options "long64"
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# We only support newlib on this target. We assume that all multilib
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# options have been specified before we get here.
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set_board_info compiler "[find_gcc]"
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set_board_info cflags "[libgloss_include_flags] [newlib_include_flags]"
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set_board_info ldflags "[libgloss_link_flags] [newlib_link_flags]"
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set_board_info ldscript "";
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# Used by a few gcc.c-torture testcases to delimit how large the
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set_board_info gcc,stack_size 16384
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# The simulator doesn't return exit statuses and we need to indicate this
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# the standard GCC wrapper will work with this target.
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set_board_info needs_status_wrapper 1
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# We can't pass arguments to programs.
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set_board_info noargs 1
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>There are five helper procedures used in this example. The first
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> looks for a copy of the GNU compiler in
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your build tree, or it uses the one in your path. This will also return
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the proper transformed name for a cross compiler if you whole build tree
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is configured for one. The next helper procedures are
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>libgloss_include_flags</TT
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>libgloss_link_flags</TT
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>. These return the proper flags to
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compiler and link an executable image using <A
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HREF="x1655.html#LIBGLOSS"
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>, the GNU BSP (Board Support Package). The final
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>newlib_include_flag</TT
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>newlib_include_flag</TT
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>. These find the Newlib C
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library, which is a reentrant standard C library for embedded systems
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comprising of non GPL'd code.</P
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