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https://github.com/drasko/codezero.git
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1a8b993ace
container packer picks up files with .elf extentions. Therefore intermediate files must not have .elf extentions, since they're not meant to go to the final executable. modified: conts/posix/bootdesc/SConscript modified: conts/posix/libposix/stat.c
107 lines
3.1 KiB
Python
107 lines
3.1 KiB
Python
# -*- mode: python; coding: utf-8; -*-
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# Codezero -- a microkernel for embedded systems.
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#
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# Copyright © 2009 B Labs Ltd
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import os.path
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import sys, subprocess, shutil
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from os.path import *
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Import('config', 'environment', 'images')
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e = environment.Clone()
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e.Replace(PROGSUFFIX = '')
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e.Append(LINKFLAGS = ['-T' + e['bootdesc_dir'] + '/linker.lds'])
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#e.Append(LINKFLAGS = ['-T' + '/linker.lds'])
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PROJRELROOT = '../../../../'
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sys.path.append(os.path.abspath(PROJRELROOT))
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from config.projpaths import *
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from config.configuration import *
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from tools.pyelf import elf
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bootdesc_template = \
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'''
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/* This file is autogenerated, do not edit by hand. */
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/* Supervisor task at load time. */
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struct svc_image {
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char name[16];
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unsigned int phys_start;
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unsigned int phys_end;
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} __attribute__((__packed__));
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/* Supervisor task descriptor at load time */
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struct bootdesc {
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int desc_size;
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int total_images;
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struct svc_image images[];
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} __attribute__((__packed__));
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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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image_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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def conv_hex(val):
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hexval = hex(val)
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if hexval[-1:] == 'L':
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hexval = hexval[:-1]
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return hexval
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def image_lma_start_end(img):
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elffile = elf.ElfFile.from_file(img)
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paddr_first = 0
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paddr_start = 0
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paddr_end = 0
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for pheader in elffile.pheaders:
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x = pheader.ai
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if str(x.p_type) != "LOAD":
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continue
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if paddr_first == 0:
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paddr_first = 1
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paddr_start = x.p_paddr.value
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if paddr_start > x.p_paddr.value:
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paddr_start = x.p_paddr.value
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if paddr_end < x.p_paddr + x.p_memsz:
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paddr_end = x.p_paddr + x.p_memsz
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return paddr_start, paddr_end
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def generate_bootdesc(target, source, env):
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with open(target[0].path, 'w+' ) as f:
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images_string = ''
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for index in range(len(source)):
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start, end = image_lma_start_end(source[index].path)
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images_string += image_template % (str(index), basename(source[index].path), conv_hex(start), conv_hex(end))
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f.write(bootdesc_template % (len(source), len(source), images_string))
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def relocate_bootdesc(target, source, env):
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bootdesc_raw = source[0]
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images = source[1:]
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mm0 = images[0]
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start, end = image_lma_start_end(mm0.path)
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print "arm-none-linux-gnueabi-objcopy --adjust-section-vma .data=" + conv_hex(end) + " " + bootdesc_raw.path
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os.system("arm-none-linux-gnueabi-objcopy --adjust-section-vma .data=" + conv_hex(end) + " " + bootdesc_raw.path)
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shutil.copyfile(bootdesc_raw.path, target[0].path)
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bootdesc_c = e.Command('bootdesc.c', images, generate_bootdesc)
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bootdesc_raw = e.Program('bootdesc_raw', bootdesc_c)
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bootdesc = e.Command('bootdesc.elf', [bootdesc_raw, images], relocate_bootdesc)
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Return('bootdesc')
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