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# $Id: buildinfo2code.py 12319 2011-12-03 18:37:30Z mthuurne $
from cpu import getCPU, X86, X86_64
from makeutils import extractMakeVariables, parseBool
from outpututils import rewriteIfChanged
import sys
def iterBuildInfoHeader(targetPlatform, cpuName, flavour, installShareDir):
platformVars = extractMakeVariables(
'build/platform-%s.mk' % targetPlatform,
dict.fromkeys(
('COMPILE_FLAGS', 'LINK_FLAGS', 'TARGET_FLAGS',
'COMPILE_ENV', 'LINK_ENV'),
''
)
)
setWindowIcon = parseBool(platformVars.get('SET_WINDOW_ICON', 'true'))
targetCPU = getCPU(cpuName)
# TODO: Add support for device-specific configuration.
platformDingux = targetPlatform == 'dingux'
platformGP2X = False
platformMaemo5 = targetPlatform == 'maemo5'
platformPandora = targetPlatform == 'pandora'
# Defaults.
have16BPP = True
have32BPP = True
minScaleFactor = 1
maxScaleFactor = 4
# Platform overrides.
if platformDingux or platformGP2X:
have32BPP = False
maxScaleFactor = 1
elif platformMaemo5:
# TODO: These are in fact N900 specific settings, but we have no
# support yet for device specific configuration and the N900
# is the most popular Maemo device currently.
have32BPP = False
maxScaleFactor = 2
elif platformPandora:
have32BPP = False
maxScaleFactor = 3
yield '// Automatically generated by build process.'
yield ''
yield '#ifndef BUILD_INFO_HH'
yield '#define BUILD_INFO_HH'
yield ''
yield '#include <string>'
yield ''
# Use a macro i.s.o. a boolean to prevent compilation errors on inline asm.
# A compiler will typically only understand the instruction set that it
# generates code for.
yield '#define ASM_X86 %d' % (targetCPU is X86 or targetCPU is X86_64)
yield '#define ASM_X86_32 %d' % (targetCPU is X86)
yield '#define ASM_X86_64 %d' % (targetCPU is X86_64)
# Use a macro iso integer because we really need to exclude code sections
# based on this.
yield '#define PLATFORM_DINGUX %d' % platformDingux
yield '#define PLATFORM_GP2X %d' % platformGP2X
yield '#define PLATFORM_MAEMO5 %d' % platformMaemo5
yield '#define HAVE_16BPP %d' % have16BPP
yield '#define HAVE_32BPP %d' % have32BPP
yield '#define MIN_SCALE_FACTOR %d' % minScaleFactor
yield '#define MAX_SCALE_FACTOR %d' % maxScaleFactor
yield ''
yield 'namespace openmsx {'
yield ''
# Note: Don't call it "BIG_ENDIAN", because some system header may #define
# that.
yield 'static const bool OPENMSX_BIGENDIAN = %s;' \
% str(targetCPU.bigEndian).lower()
yield 'static const bool OPENMSX_UNALIGNED_MEMORY_ACCESS = %s;' \
% str(targetCPU.unalignedMemoryAccess).lower()
yield 'static const bool OPENMSX_SET_WINDOW_ICON = %s;' \
% str(setWindowIcon).lower()
yield 'static const std::string DATADIR = "%s";' % installShareDir
yield 'static const std::string BUILD_FLAVOUR = "%s";' % flavour
yield ''
yield '} // namespace openmsx'
yield ''
yield '#endif // BUILD_INFO_HH'
if __name__ == '__main__':
if len(sys.argv) == 6:
rewriteIfChanged(sys.argv[1], iterBuildInfoHeader(*sys.argv[2 : ]))
else:
print >> sys.stderr, \
'Usage: python buildinfo2code.py CONFIG_HEADER ' \
'platform cpu flavour share-install-dir'
sys.exit(2)
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