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https://github.com/drasko/codezero.git
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cab2e8bdd3
Finished adding untested shm syscalls. Finished adding untested l4 send/recv helpers Everything compiles. Now going to fix lots of bugs ;-)
124 lines
4.0 KiB
Python
124 lines
4.0 KiB
Python
#
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# Build script to autogenerate a bootdesc image
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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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# The root directory of the repository where this file resides:
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project_root = "../.."
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tools_root = "../../tools"
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kernel = join(project_root, "build/start.axf")
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mm0 = join(project_root, "tasks/mm0/mm0.axf")
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fs0 = join(project_root, "tasks/fs0/fs0.axf")
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test0 = join(project_root, "tasks/test0/test0.axf")
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#test1 = join(project_root, "tasks/test1/test1.axf")
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#blkdev0 = join(project_root, "tasks/fsbin/blkdev0.axf")
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images = [kernel, mm0, fs0, test0]
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autogen_templ = "bootdesc.c.append"
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def get_image_name_start_end(image, target):
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'''
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Using readelf.py utility, extracts name, start, end triplet from an arm-elf image.
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'''
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rest, name = os.path.split(image)
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if name[-4] == ".":
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name = name[:-4]
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os.system(join(tools_root, "pyelf/readelf.py --lma-start-end " + \
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image + " > " + target))
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bootdesc_template = \
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'''
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struct bootdesc bootdesc = {
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.desc_size = sizeof(struct bootdesc) + sizeof(struct svc_image) * %s,
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.total_images = %s,
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.images = {
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%s
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},
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};
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'''
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images_template = \
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''' [%s] = {
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.name = "%s",
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.phys_start = %s,
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.phys_end = %s,
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},
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'''
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images_template_end = \
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'''
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},
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'''
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def generate_bootdesc(source, target, env):
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'''
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Extracts name, start, end information from the kernel and each svc task.
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Uses this information to produce bootdesc.c
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'''
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source.sort()
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images = []
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images_string = ""
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for node in source:
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if str(node)[-4:] == ".axf":
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rest, imgname = os.path.split(str(node))
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images.append((str(node), imgname[:-4]))
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elif str(node) [-6:] == ".templ":
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# Static template that has type definitions.
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#rest, original_template = os.path.split(str(node))
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original_template = str(node)
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index = 0
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for imgpath, imgname in images:
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get_image_name_start_end(imgpath, imgname + ".txt")
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if imgname != "start":
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f = open(imgname + ".txt", "r")
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svc_name = f.readline()[:-1]
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[start, startval] = str.split(f.readline()[:-1])
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[end, endval] = str.split(f.readline()[:-1])
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f.close()
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images_string += images_template % (str(index), svc_name, \
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hex(int(startval, 16)), hex(int(endval, 16)))
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index += 1
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# Autogenerated template with actual data.
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autogen_template = open(autogen_templ, "w+")
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autogen_template.write(bootdesc_template % (str(index), str(index), images_string))
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autogen_template.close()
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os.system("cat " + original_template + " > " + str(target[0]))
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os.system("cat " + autogen_templ + " >> " + str(target[0]))
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def relocate_bootdesc(source, target, env):
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f = open("start.txt", "r")
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kernel_name = f.readline()[:-1]
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[start, startval] = str.split(f.readline()[:-1])
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[end, endval] = str.split(f.readline()[:-1])
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os.system("arm-none-linux-gnueabi-objcopy --adjust-section-vma .data=" + \
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hex(int(endval,16)) + " " + str(source[0]))
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os.system("mv " + str(source[0]) + " " + str(target[0]))
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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','-Tlinker.lds'],
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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 = 'gcc', # libgcc.a - This is required for division routines.
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CPPPATH = '#include') # `hash' ('#') is a shorthand meaning `relative to
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# the root directory'. But this only works for
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# well-defined variables, not all paths, and only
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# if we use a relative build directory for sources.
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bootdesc_src = env.Command("bootdesc.c", ["bootdesc.c.templ"] + images, generate_bootdesc)
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objs = env.Object('bootdesc.c')
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bootdesc = env.Program('bootdesc_data', objs)
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bootdesc_relocated = env.Command("bootdesc.axf", "bootdesc_data.axf", relocate_bootdesc)
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env.Depends(bootdesc_relocated, bootdesc)
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