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https://github.com/drasko/codezero.git
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89 lines
3.0 KiB
Python
89 lines
3.0 KiB
Python
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Import('config', 'environment', 'previmage', 'contid')
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import os, sys
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arch = config.arch
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sys.path.append('../../../../')
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from config.lib import *
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from tools.pyelf.lmanext import *
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src = [Glob('*.c') + Glob('test_exec.S') + Glob('src/*.[Sc]') + Glob('src/arch/arm/*.c')]
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container = next((c for c in config.containers if int(c.id) == int(contid)), None)
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asm_string = \
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'''
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.align 4
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.section .testexec
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.incbin "%s"
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'''
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def generate_incbin_asm(target, source, env):
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with open(target[0].path, 'w+') as asm_out:
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asm_out.write(asm_string % source[0].path)
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def generate_lma_lds(target, source, env):
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with open(source[1].path, 'r') as lds_in:
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with open(target[0].path, 'w+') as lds_out:
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linker_script = lds_in.read()
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lds_out.write(linker_script % (container.pager_task_region_start, next_available_lma(source[0].path)))
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lma_lds = Command('include/linker.lds', [previmage, 'include/linker.lds.in'], generate_lma_lds)
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env = environment.Clone()
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test_exec_env = environment.Clone()
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test_exec_env.Append(LIBS = ['posix', 'c-userspace'])
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test_exec_env.Append(LINKFLAGS = '-T' + "test0/include/test_exec_linker.lds")
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test_exec_env.Append(CPPFLAGS = ' -D__USERSPACE__')
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test_exec_env.Replace(PROGSUFFIX = '')
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test_exec_src = Glob('src/test_exec/*.[cS]')
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test_exec_objs = test_exec_env.Object(test_exec_src)
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test_exec = test_exec_env.Program('src/test_exec/test_exec', test_exec_objs)
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test_exec_asm = Command('test_exec.S', test_exec, generate_incbin_asm)
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Depends(test_exec, test_exec_objs)
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Depends(test_exec, 'include/test_exec_linker.lds')
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env.Append(LIBS = ['posix', 'c-userspace'])
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env.Append(LINKFLAGS = '-T' + lma_lds[0].path)
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env.Append(CPPFLAGS = ' -D__USERSPACE__')
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env.Replace(PROGSUFFIX = '')
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objs = env.Object(src + test_exec_asm)
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test0 = env.Program('test0', objs)
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elf_wrap_string = \
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'''
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.align 4
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.section .data
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.incbin "%s"
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'''
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def elf_wrap_asm(target, source, env):
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with open(target[0].path, 'w+') as asm_out:
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asm_out.write(elf_wrap_string % source[0].path)
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def elf_wrap_lds(target, source, env):
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with open(source[1].path, 'r') as lds_in:
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with open(target[0].path, 'w+') as lds_out:
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linker_script = lds_in.read()
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lds_out.write(linker_script % next_available_lma(source[0].path))
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# This further wraps the test0 elf image in another elf. Required.
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elf_wrap_env = environment.Clone()
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elf_wrapped_asm = Command('test0_elf_wrapped.S', test0, elf_wrap_asm)
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elf_wrapped_lds = Command('include/elf_wrapper.lds', [previmage, 'include/elf_wrapper.lds.in'], elf_wrap_lds)
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elf_wrap_env.Append(LINKFLAGS = '-T' + elf_wrapped_lds[0].path)
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elf_wrap_objs = elf_wrap_env.Object(elf_wrapped_asm)
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test0_elf_elf = elf_wrap_env.Program('test0_elf.elf', elf_wrap_objs)
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# So that everytime test0 is built, elf_wrap_objs
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# gets built (even though elf_wrapped_asm remains the same
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Depends(elf_wrap_objs, test0)
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Depends(test0, lma_lds)
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Depends(test0, test_exec)
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Depends(lma_lds, previmage)
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Depends(test0_elf_elf, elf_wrapped_lds)
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Return('test0_elf_elf')
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