mirror of
https://github.com/drasko/codezero.git
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7a81db8782
Added setting of utcb address to l4_thread_control. This is going to be moved to exchange_registers() since we need to pass both the utcb physical and virtual address and exregs fits such context modification better than thread_control.
79 lines
2.8 KiB
Python
79 lines
2.8 KiB
Python
#
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# User space application build script
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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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task_name = "test0"
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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/fs0/fs0.axf")
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libs_path = join(project_root, "libs")
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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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# Libc situation:
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# Libposix has uClibc (and therefore posix) headers.
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# NICTA libc implements printf for us for now.
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# Libposix implements posix calls for us, e.g. mmap.
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# In conclusion nicta libc and libposix complement each other
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# they should not clash. In future libposix will be part of uclibc
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# and uclibc will be used.
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# libc paths:
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libc_variant = "userspace"
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libc_libpath = join(libs_path, "c/build/%s" % libc_variant)
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libc_incpath = join(libc_libpath, "include")
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libc_crt0 = join(libs_path, "c/build/crt/sys-userspace/arch-arm/crt0.o")
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libc_name = "c-%s" % libc_variant
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# libposix paths:
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libposix_libpath = "../libposix"
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libposix_incpath = "../libposix/include/posix"
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# libl4 paths:
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libl4_path = "../libl4"
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libl4_incpath = join(libl4_path, "include")
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# kernel paths:
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kernel_incpath = join(project_root, "include")
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# If crt0 is in its library path, it becomes hard to link with it.
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# For instance the linker script must use an absolute path for it.
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def copy_crt0(source, target, env):
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os.system("cp " + str(source[0]) + " " + str(target[0]))
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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, "-L" + libc_libpath, "-L" + libl4_path, \
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'-L' + libposix_libpath],
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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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LIBS = [libc_name, 'gcc', libc_name, 'libl4', 'libposix', libc_name],
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CPPFLAGS = "-D__USERSPACE__",
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CPPPATH = ['#include', libl4_incpath, libposix_incpath, kernel_incpath])
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src = [glob("src/*.c"), glob("*.c"), glob("*.S"), glob("src/arch/arm/*.c"), glob("../libcont/*.c")]
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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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crt0_copied = env.Command("crt0.o", libc_crt0, copy_crt0)
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task = env.Program(task_name, objs + [crt0_copied])
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env.Alias(task_name, task)
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env.Depends(task, physical_base)
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