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44 lines
1.5 KiB
Python
44 lines
1.5 KiB
Python
#
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# Binary to elf build script
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# Works by including a binary in an assembler file and linking it.
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#
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# Copyright (C) 2007 Bahadir Balban
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#
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import os
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import sys
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import shutil
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from os.path import join
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from glob import glob
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elfimg_name = "romfs"
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# The root directory of the repository where this file resides:
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project_root = "../.."
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tools_root = join(project_root, "tools")
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prev_image = join(project_root, "tasks/test0/test0.axf")
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ld_script = "include/linker.lds"
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physical_base_ld_script = "include/physical_base.lds"
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def get_physical_base(source, target, env):
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os.system(join(tools_root, "pyelf/readelf.py --first-free-page " + \
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prev_image + " >> " + physical_base_ld_script))
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# The kernel build environment:
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env = Environment(CC = 'arm-none-linux-gnueabi-gcc',
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# We don't use -nostdinc because sometimes we need standard headers,
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# such as stdarg.h e.g. for variable args, as in printk().
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CCFLAGS = ['-g', '-nostdlib', '-ffreestanding', '-std=gnu99', '-Wall', '-Werror'],
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LINKFLAGS = ['-nostdlib', '-T' + ld_script],
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ASFLAGS = ['-D__ASSEMBLY__'],
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PROGSUFFIX = '.axf', # The suffix to use for final executable
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ENV = {'PATH' : os.environ['PATH']}, # Inherit shell path
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CPPFLAGS = "-D__USERSPACE__",
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CPPPATH = ['#include'])
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src = [glob("*.S")]
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objs = env.Object(src)
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physical_base = env.Command(physical_base_ld_script, prev_image, get_physical_base)
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task = env.Program(elfimg_name, objs)
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env.Alias(elfimg_name, task)
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env.Depends(task, physical_base)
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