Subversion Repositories c0or1k

Import('config', 'environment', 'previmage', 'contid')

import os, sys

arch = config.arch

sys.path.append('../../../../')

from config.lib import *

from tools.pyelf.lmanext import *

src = [Glob('*.c') + Glob('test_exec.S') + Glob('src/*.[Sc]') + Glob('src/arch/arm/*.c')]

container = next((c for c in config.containers if int(c.id) == int(contid)), None)

asm_string = \

'''

.align 4

.section .testexec

.incbin "%s"

'''

test_exec_linker_lds_in = \

'''

/*

 * Simple linker script for userspace or svc tasks.

 *

 * Copyright (C) 2007 Bahadir Balban

 */

virtual_base = %s;

/* First page before the env/args */

ENTRY(_start)

SECTIONS

{

        . = virtual_base;

        .text : { *(.text.head) *(.text) }

        .rodata : { *(.rodata) }

        .rodata1 : { *(.rodata1) }

        . = ALIGN(4K);

        .data : { *(.data) }

        .bss : { *(.bss) }

}

'''

def generate_incbin_asm(target, source, env):

    with open(target[0].path, 'w+') as asm_out:

        asm_out.write(asm_string % source[0].path)

def generate_lma_lds(target, source, env):

    with open(source[1].path, 'r') as lds_in:

        with open(target[0].path, 'w+') as lds_out:

            linker_script = lds_in.read()

            lds_out.write(linker_script % (conv_hex(container.pager_task_region_start), next_available_lma(source[0].path)))

def generate_test_exec_lds(target, source, env):

    with open(target[0].path, 'w+') as lds_out:

        lds_out.write(test_exec_linker_lds_in % conv_hex(container.pager_task_region_start))

lma_lds = Command('include/linker.lds', [previmage, 'include/linker.lds.in'], generate_lma_lds)

test_exec_lds = Command('include/test_exec_linker.lds', [], generate_test_exec_lds)

env = environment.Clone()

test_exec_env = environment.Clone()

test_exec_env.Append(LIBS = ['posix', 'c-userspace'])

test_exec_env.Append(LINKFLAGS = '-T' + test_exec_lds[0].path)

test_exec_env.Append(CPPFLAGS = ' -D__USERSPACE__ -include l4lib/macros.h ')

test_exec_env.Replace(PROGSUFFIX = '')

test_exec_src = Glob('src/test_exec/*.[cS]')

test_exec_objs = test_exec_env.Object(test_exec_src)

test_exec = test_exec_env.Program('src/test_exec/test_exec', test_exec_objs)

test_exec_asm = Command('test_exec.S', test_exec, generate_incbin_asm)

Depends(test_exec, test_exec_objs)

Depends(test_exec, test_exec_lds)

AlwaysBuild(test_exec_lds)

env.Append(LIBS = ['posix', 'c-userspace'])

env.Append(LINKFLAGS = '-T' + lma_lds[0].path)

env.Append(CPPFLAGS = ' -D__USERSPACE__ -include l4lib/macros.h ')

env.Replace(PROGSUFFIX = '')

objs = env.Object(src + test_exec_asm)

test0 = env.Program('test0', objs)

elf_wrap_string = \

'''

.align 4

.section .data

.incbin "%s"

'''

def elf_wrap_asm(target, source, env):

    with open(target[0].path, 'w+') as asm_out:

        asm_out.write(elf_wrap_string % source[0].path)

def elf_wrap_lds(target, source, env):

    with open(source[1].path, 'r') as lds_in:

        with open(target[0].path, 'w+') as lds_out:

            linker_script = lds_in.read()

            lds_out.write(linker_script % next_available_lma(source[0].path))

# This further wraps the test0 elf image in another elf. Required.

elf_wrap_env = environment.Clone()

elf_wrapped_asm = Command('test0_elf_wrapped.S', test0, elf_wrap_asm)

elf_wrapped_lds = Command('include/elf_wrapper.lds', [previmage, 'include/elf_wrapper.lds.in'], elf_wrap_lds)

elf_wrap_env.Append(LINKFLAGS = '-T' + elf_wrapped_lds[0].path)

elf_wrap_objs = elf_wrap_env.Object(elf_wrapped_asm)

test0_elf_elf = elf_wrap_env.Program('test0_elf.elf', elf_wrap_objs)

# So that everytime test0 is built, elf_wrap_objs

# gets built (even though elf_wrapped_asm remains the same

Depends(elf_wrap_objs, test0)

Depends(test0, lma_lds)

Depends(test0, test_exec)

Depends(lma_lds, previmage)

AlwaysBuild(lma_lds)

Depends(test0_elf_elf, elf_wrapped_lds)

Return('test0_elf_elf')