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Construct main.c from a template.

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This commit is contained in:
Russel Winder
2009-08-10 11:03:17 +01:00
parent b833381c4a
commit 9781f49f5d
2 changed files with 30 additions and 31 deletions
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22
loader/SConscript
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@@ -65,11 +65,29 @@ def createKernelSFile(target, source, env):
.incbin "%s"
''' % (os.path.splitext(image.name)[0], image.path))
def createMainC(target, source, env):
with open(source[0].path) as inFile:
with open(target[0].path, 'w') as outFile:
externs = ''
declarations = ''
loads = ''
for item in source[1:]:
name = os.path.splitext(item.name)[0]
if name == 'start' : name = 'kernel'
externs += 'extern char _start_%s[];\nextern char _end_%s[];\n' % (name, name)
declarations += 'void *%s_entry = NULL;\n' % (name,)
loads += 'printf("Loading the %s...\\n");\nload_image(&%s_entry, _start_%s, _end_%s);\n' %(name, name, name, name)
text = inFile.read()
text = text.replace('__EXTERNAL_SYMBOLS_EDIT_MARKER__', externs)
text = text.replace('__DECLARATIONS_EDIT_MARKER__', declarations)
text = text.replace('__LOAD_STATEMENTS_EDIT_MARKER__', loads)
outFile.write(text)
startAxfS = Command('start.axf.S', images[0], ksymToLds)
kernelS = Command('kernel.S', images + [startAxfS], createKernelSFile)
mainC = Command('main.c', ['main.c.in'] + images, createMainC)
objects = environment.Object(Glob('*.c') + [kernelS, startAxfS])
objects = environment.Object(Glob('*.c') + [kernelS, startAxfS, mainC])
Depends(objects, environment['configFiles'])
Depends(objects, images)
program = environment.Program('final', objects + [environment['baremetal_crt0']])