mirror of
https://github.com/drasko/codezero.git
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206 lines
6.1 KiB
Python
Executable File
206 lines
6.1 KiB
Python
Executable File
#! /usr/bin/env python2.6
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# -*- mode: python; coding: utf-8; -*-
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#
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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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#
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import os, sys, shelve, glob
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from os.path import join
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from string import Template
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PROJRELROOT = '../..'
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sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), PROJRELROOT)))
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sys.path.append(os.path.abspath("../"))
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from scripts.config.projpaths import *
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from scripts.config.configuration import *
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cinfo_file_start = \
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'''/*
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* Autogenerated container descriptions
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* defined for the current build.
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*
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* Copyright (C) 2009 Bahadir Balban
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*/
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#include <l4/generic/container.h>
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#include <l4/generic/resource.h>
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#include <l4/generic/capability.h>
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#include <l4/generic/cap-types.h>
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#include INC_PLAT(platform.h)
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#include INC_PLAT(irq.h)
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%s
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__initdata struct container_info cinfo[] = {
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'''
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cinfo_file_end = \
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'''
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};
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'''
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cinfo_head_start = \
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'''
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\t[%d] = {
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\t.name = "%s",
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\t.npagers = 1,
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\t.ncaps = %d,
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\t.caps = {'''
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cinfo_caps_end = \
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'''
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\t},
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'''
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cinfo_end = \
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'''
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\t\t},
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\t},
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'''
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pager_start = \
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'''
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\t.pager = {
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\t\t[0] = {
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\t\t\t.start_address = (CONFIG_CONT%(cn)d_START_PC_ADDR),
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\t\t\t.pager_lma = __pfn(CONFIG_CONT%(cn)d_PAGER_LOAD_ADDR),
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\t\t\t.pager_vma = __pfn(CONFIG_CONT%(cn)d_PAGER_VIRT_ADDR),
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\t\t\t.pager_size = __pfn(page_align_up(CONT%(cn)d_PAGER_MAPSIZE)),
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\t\t\t.rw_pheader_start = %(rw_pheader_start)s,
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\t\t\t.rw_pheader_end = %(rw_pheader_end)s,
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\t\t\t.rx_pheader_start = %(rx_pheader_start)s,
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\t\t\t.rx_pheader_end = %(rx_pheader_end)s,
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\t\t\t.ncaps = %(caps)d,
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\t\t\t.caps = {
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'''
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pager_end = \
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'''
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\t\t\t},
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\t\t},
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'''
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# These are pager-only. If for container, remove the PAGER part, indent down some tabs.
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cap_virtmem = \
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'''
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\t\t\t[%(capidx)d] = {
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\t\t\t\t.target = %(cn)d,
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\t\t\t\t.type = CAP_TYPE_MAP_VIRTMEM | CAP_RTYPE_CONTAINER,
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\t\t\t\t.access = CAP_MAP_READ | CAP_MAP_WRITE | CAP_MAP_EXEC
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\t\t\t\t\t| CAP_MAP_CACHED | CAP_MAP_UNCACHED | CAP_MAP_UNMAP | CAP_MAP_UTCB |
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\t\t\t\t\tCAP_CACHE_INVALIDATE | CAP_CACHE_CLEAN,
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\t\t\t\t.start = __pfn(CONFIG_CONT%(cn)d_PAGER_VIRT%(vn)d_START),
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\t\t\t\t.end = __pfn(CONFIG_CONT%(cn)d_PAGER_VIRT%(vn)d_END),
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\t\t\t\t.size = __pfn(CONFIG_CONT%(cn)d_PAGER_VIRT%(vn)d_END - CONFIG_CONT%(cn)d_PAGER_VIRT%(vn)d_START),
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\t\t\t},
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'''
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cap_physmem = \
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'''
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\t\t\t[%(capidx)d] = {
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\t\t\t\t.target = %(cn)d,
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\t\t\t\t.type = CAP_TYPE_MAP_PHYSMEM | CAP_RTYPE_CONTAINER,
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\t\t\t\t.access = CAP_MAP_READ | CAP_MAP_WRITE | CAP_MAP_EXEC |
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\t\t\t\t\tCAP_MAP_CACHED | CAP_MAP_UNCACHED | CAP_MAP_UNMAP | CAP_MAP_UTCB,
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\t\t\t\t.start = __pfn(CONFIG_CONT%(cn)d_PAGER_PHYS%(pn)d_START),
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\t\t\t\t.end = __pfn(CONFIG_CONT%(cn)d_PAGER_PHYS%(pn)d_END),
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\t\t\t\t.size = __pfn(CONFIG_CONT%(cn)d_PAGER_PHYS%(pn)d_END - CONFIG_CONT%(cn)d_PAGER_PHYS%(pn)d_START),
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\t\t\t},
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'''
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pager_ifdefs_todotext = \
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'''
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/*
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* TODO:
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* This had to be defined this way because in CML2 there
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* is no straightforward way to derive symbols from expressions, even
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* if it is stated in the manual that it can be done.
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* As a workaround, a ternary expression of (? : ) was tried but this
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* complains that type deduction could not be done.
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*/'''
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# This will be filled after the containers are compiled
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# and pager binaries are formed
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pager_mapsize = \
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'''
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#define CONT%d_PAGER_SIZE %s
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'''
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pager_ifdefs = \
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'''
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#if defined(CONFIG_CONT%(cn)d_TYPE_LINUX)
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#define CONT%(cn)d_PAGER_MAPSIZE \\
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(CONT%(cn)d_PAGER_SIZE + CONFIG_CONT%(cn)d_LINUX_ZRELADDR - \\
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CONFIG_CONT%(cn)d_LINUX_PHYS_OFFSET)
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#else
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#define CONT%(cn)d_PAGER_MAPSIZE (CONT%(cn)d_PAGER_SIZE)
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#endif
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'''
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def generate_pager_memory_ifdefs(config, containers):
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pager_ifdef_string = ""
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linux = 0
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for c in containers:
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if c.type == "linux":
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if linux == 0:
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pager_ifdef_string += pager_ifdefs_todotext
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linux = 1
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pager_ifdef_string += \
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pager_mapsize % (c.id, c.pager_size)
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pager_ifdef_string += pager_ifdefs % { 'cn' : c.id }
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return pager_ifdef_string
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def generate_kernel_cinfo(cinfo_path):
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config = configuration_retrieve()
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containers = config.containers
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containers.sort()
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print "Generating kernel cinfo..."
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#config.config_print()
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pager_ifdefs = generate_pager_memory_ifdefs(config, containers)
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with open(str(cinfo_path), 'w+') as cinfo_file:
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fbody = cinfo_file_start % pager_ifdefs
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for c in containers:
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for caplist in [c.caplist["CONTAINER"], c.caplist["PAGER"]]:
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total_caps = caplist.virt_regions + caplist.phys_regions + len(caplist.caps)
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if caplist == c.caplist["CONTAINER"]:
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fbody += cinfo_head_start % (c.id, c.name, total_caps)
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else:
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fbody += pager_start % { 'cn' : c.id, 'caps' : total_caps,
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'rw_pheader_start' : hex(c.pager_rw_pheader_start),
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'rw_pheader_end' : hex(c.pager_rw_pheader_end),
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'rx_pheader_start' : hex(c.pager_rx_pheader_start),
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'rx_pheader_end' : hex(c.pager_rx_pheader_end),
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}
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cap_index = 0
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for mem_index in range(caplist.virt_regions):
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fbody += cap_virtmem % { 'capidx' : cap_index, 'cn' : c.id, 'vn' : mem_index }
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cap_index += 1
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for mem_index in range(caplist.phys_regions):
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fbody += cap_physmem % { 'capidx' : cap_index, 'cn' : c.id, 'pn' : mem_index }
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cap_index += 1
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for capkey, capstr in caplist.caps.items():
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templ = Template(capstr)
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fbody += templ.safe_substitute(idx = cap_index)
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cap_index += 1
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if caplist == c.caplist["CONTAINER"]:
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fbody += cinfo_caps_end
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else:
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fbody += pager_end
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fbody += cinfo_end
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fbody += cinfo_file_end
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cinfo_file.write(fbody)
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if __name__ == "__main__":
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if len(sys.argv) > 1:
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generate_kernel_cinfo(join(PROJROOT, sys.argv[1]))
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else:
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generate_kernel_cinfo(KERNEL_CINFO_PATH)
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