coreboot build environment for windows

09/03/2010 win-build-env-001.7z - original

Target cross compilers are now built using the 'coresystems cross toolchain builder v1.01' tool.
Add target compiler version 4.4.4 in addition to version 4.5.0. Edit line 21 of go.bat to select the compiler.
Add python tool needed to build the seabios payload.
Add yes command needed by the abuild utility.
Ensure that all coreboot projects can build using this build environment.
Note: to run abuild, you must copy the xgcc directory from msys\gcc450 to coreboot\util\crossgcc.

Add --with-dwarf2 to the gcc configure command. This makes gcc -g produce dwarf2 debugging information.
Correct an improperly formed comment in go.bat.
Update the sample coreboot to revision 5991 and test this build environment using abuild.

Add gcc 4.5.1 cross compiler. Versions 4.4.4 and 4.5.0 are still included. Built with this patch applied to buildgcc rev 5768, plus add --with-dwarf2 and --enable-lto to gcc configure.
Change go.bat default cross compiler from version 4.5.0 to version 4.5.1.
Completely ignore Path environment variable when building to ensure only the indended build tools are executed.
Change go.bat to locate the msys directory using an environment variable (msys_for_coreboot) instead of using a relative path. This simplifies archiving projects independently of the build environment.
Move tools directory into the msys directory so that a single environment variable locates everything needed to build a coreboot project.
Update iasl.exe from version version 20100806 to version 20101013.
Update m4.exe from version 1.4.7 to version 1.4.14.
Add bison/flex/yacc.
Update the sample coreboot to revision 6098.

The included mingw is modified for compatibility with the seabios kconfig tool build:
- stdio.h and io.h prototypes for mkdir allow a second argument.
- stdio.h and io.h redefine the rename function to rpl_rename.
- libmingw32.a is expanded to include libregex.dll.a and libws2_32.a.
- libmingw32.a is expanded to include rpl_rename and uname functions from gnulib.
- See msys\mingw-msys-modifications\readme.txt for details.
- WARNING: use this build environment for coreboot build only. Use a standard msys/mingw build environment for crossgcc or other builds.
The included msys-1.0.dll is modified to avoid "Couldn't commit memory for cygwin heap" error during AMD family 14h builds.
Add gcc 4.5.2 cross compiler. Version 4.4.4 is still included. Version 4.5.2 is built with buildgcc rev 6195, plus --with-dwarf2 to gcc configure.
Change go.bat default cross compiler to version 4.5.2.
Update the sample coreboot to revision 6474.
Abuild tested with svn://coreboot.org/coreboot/trunk rev 6474 (Note: to run abuild, you must copy the xgcc directory from msys\gcc452 to coreboot\util\crossgcc).

Change gcc version in go.bat from 4.6.0 to 4.5.2 for compatibility with existing coreboot projects.

Add gcc 4.62 cross compiler. Built using this msys and these buildgcc changes (see included buildgcc):
- --with-dwarf2 (makes debug output without modification to the makefiles)
- --enable-frame-pointer (restore gcc 4.5.x default to reduce code size)
Change go.bat default cross compiler to version 4.6.2.
Update iasl.exe to latest version.
Add go.bat IASL definition to avoid build fail with newer coreboot revisions.
Make go.bat look for msys in parent and current directories. This eliminates the need the msys_for_coreboot variable.

Add gcc 4.73 cross compiler and change go.bat to use it.
Update go.bat to build .xcompile using the revised format. The standard coreboot .xcompile is not used due to a mingw path compatibility problem.
Update iasl.exe to current version.
Update git so that SeaBIOS download succeeds.
Limitations:
- During the build, nvramtool.exe tries to access the cmos of the build machine. Windows does not allow this, and the build fails. The included sample coreboot project has been modified to avoid the use of nvramtool.
- The build of cbfstool fails because symbol ERROR is defined by both windows.h and the lzma code. The sample coreboot project has been modified to work around this problem.
- The build of default payload SeaBIOS fails due to a mingw related path problem.

Add gcc 4.81 cross compiler. Files for building the gcc 4.81 cross compiler on Windows are here.
Change go.bat to use gcc 4.81.
Update go.bat to build .xcompile using the revised format. The standard coreboot .xcompile is not used due to a mingw path compatibility problem.
Update iasl.exe to current version.
Update git so that SeaBIOS download succeeds.
Limitations:
- During the build, nvramtool.exe tries to access the cmos of the build machine. Windows does not allow this, and the build fails. The included sample coreboot project has been modified to avoid the use of nvramtool.
- The build of cbfstool fails because symbol ERROR is defined by both windows.h and the lzma code. The sample coreboot project has been modified to work around this problem.
- The build of default payload SeaBIOS fails due to a mingw related path problem.

Work around the cbfstool build explained above by modifying the included msys headers. This eliminates the need to modify the coreboot project.
Rebuild regex library from source (mingw-libgnurx-2.5.1) to solve the nvramtool problem described above. Debugging found the problem was due to an incompatible regex library rather than nvramtool attempting to access CMOS as previously thought.
Replace the included coreboot directory with an unmodified snapshot from 12/09/2013 (coreboot-f87c20a).
Limitations:
- The build of default payload SeaBIOS fails due to a mingw related path problem.

Add function mkstemp to libmingw32.a, which is now needed by the coreboot build process.
- Update the libmingw32.a build instructions to reflect this addition.
- Add back libregex.dll.a which is needed when rebuilding libmingw32.a.
Update go.bat to generate additional required tool definitions.
SeaBIOS build problems are resolved.
- Use SeaBIOS newer than version 1.7.5, or configure for SEABIOS_MASTER.
- See http://code.coreboot.org/p/seabios/source/commit/ec44fac1f69bd3d513204a6192623de511b11144/.
Update the included coreboot to latest snapshot.
Built and boot tested using ASRock E350M1.

Fix build problem with recent coreboot releases. Now .xcompile is generated by the coreboot xcompile script instead of go.bat. This should reduce the need to revise the Windows build environment as coreboot evolves.

Instructions for recreating the build environment from scratch are included.

ARM/AARCH64 build tools are included.

Includes gcc 4.9.2 tool chain with LTO support.

To build SeaBIOS payload: