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-- This is a project file used to rebuild the GNAT run-time for debug
-- or instrumentation purposes.
--
-- Here is how to use this project file:
--
-- 1. Create a new directory (e.g. "rts-debug"), then copy the adainclude
-- directory from the reference runtime that you want to rebuild.
-- You can find the relevant adainclude directory by running the command
-- gprls [--target=<target>] [--RTS=<runtime>] and using the adainclude
-- directory listed. For example:
-- $ cd <reference directory>
-- $ mkdir rts-debug
-- $ cd rts-debug
-- $ cp -a `gprls -v | grep adainclude` .
-- $ cd adainclude
--
-- or under Windows:
--
-- $ mkdir adainclude
-- $ xcopy /s /path/to/adainclude adainclude
-- $ cd adainclude
--
-- 2. If needed (e.g for pragma Normalize_Scalars), create a file called
-- gnat.adc in the adainclude directory containing the configuration pragmas
-- you want to use to build the library, e.g.
--
-- $ echo "pragma Normalize_Scalars;" > gnat.adc
--
-- Note that this step is usually not needed, and most pragmas are not
-- relevant to the GNAT run time.
--
-- 3. Determine the values of the following variables
-- CFLAGS (back end compilation flags such as -g -O2)
-- ADAFLAGS (front end compilation flags such as -gnatn)
--
-- 4. Run gprbuild on libada.gpr, e.g:
-- $ gprbuild -p -Plibada -j0 -XCFLAGS="-O2 -g" -XADAFLAGS="-gnatn"
--
-- or for a cross target:
--
-- $ gprbuild --target=powerpc-elf -p -Plibada -j0 [...]
--
-- if you created a gnat.adc file at step 2, add "-XCONFIG_FILE=gnat.adc" to
-- the gprbuild switches.
--
-- The above command will build libgnat.a and libgnarl.a with the given
-- switches.
--
-- 4b. In order to generate shared libraries instead, add
-- "-XLIBRARY_KIND=dynamic" to the gprbuild switches, and if you want to
-- build both shared and static libraries, you can run gprbuild twice in
-- a row, e.g:
--
-- $ gprbuild -p -Plibada -j0 -XLIBRARY_KIND=dynamic [...]
-- $ gprbuild -p -Plibada -j0 -XLIBRARY_KIND=static [...]
--
-- 5. Once the above gprbuild command is successful, you can use this new
-- runtime directory by specifying it either via the --RTS= switch on the
-- command line or via the attribute Runtime ("Ada") in the main project
-- file:
-- $ gprbuild --RTS=.../rts-debug ...
-- or
-- for Runtime ("Ada") use ".../rts-debug";
aggregate project Libada is
for Project_Files use ("libgnat.gpr", "libgnarl.gpr");
Config_File := External ("CONFIG_FILE", "");
package Builder is
case Config_File is
when "" => null;
when others => for Global_Configuration_Pragmas use Config_File;
end case;
end Builder;
end Libada;
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