mirror of
https://github.com/drasko/codezero.git
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938672f7c9
Changed l4id_t type to integer to recognise negative id values like L4_ANYTHREAD. Added an extremely simple script that cleans and builds everything in right order. Increased boot pmds by one: This is due to the fact that if the 1MB initial allocation area of the kernel is not 1MB-aligned, it is ought to be mapped from the middle of one MB to next, which requires 2 pmds. modified: .gdbinit modified: README new file: buildall.sh modified: include/l4/arch/arm/types.h modified: include/l4/generic/scheduler.h modified: loader/kernel.S modified: loader/main.c modified: loader/mylink.lds modified: loader/start.axf.S modified: src/glue/arm/init.c modified: src/glue/arm/memory.c modified: tasks/fs0/src/bdev.c modified: tasks/mm0/include/kdata.h modified: tasks/mm0/include/vm_area.h modified: tasks/mm0/src/init.c modified: tasks/mm0/src/task.c modified: tools/ksym_to_lds.py modified: tools/l4-qemu
64 lines
1.3 KiB
Python
Executable File
64 lines
1.3 KiB
Python
Executable File
#!/usr/bin/python
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import os
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import sys
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from string import atoi
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from os import popen2
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from os.path import join
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symbols = ['break_virtual']
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builddir = "build"
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loaderdir = "loader"
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image = "start.axf"
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imgpath = join(builddir, image)
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asmfile = join(loaderdir, image) + ".S"
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symfile = "ksyms"
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asmheader = \
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'''
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/*
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* %s autogenerated from %s
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*
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* This file is included by the loader sources so that any
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* kernel symbol address can be known in advance and stopped
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* at by debuggers before virtual memory is enabled.
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*/
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'''
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asmcontent = \
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'''
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.section .text
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.align 4
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.global %s;
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.type %s, function;
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.equ %s, %s
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'''
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def virt_to_phys(addr):
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return hex(int(addr, 16) - 0xF0000000)[:-1]
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def ksym_to_lds():
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asm = open(asmfile, "w+")
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asm.write(asmheader % (asmfile, imgpath))
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cmd = "arm-none-eabi-objdump -d " + imgpath + " | grep " + "\\<" + symbols[0] + "\\>" + " > " + symfile
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os.system(cmd)
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kf = open(symfile, "r")
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#child_out, child_in = popen2(cmd)
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while True:
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line = kf.readline()
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if len(line) is 0:
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break
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addr, sym = line.split()
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sym = sym[1:-2]
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addr = "0x" + addr
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addr = virt_to_phys(addr)
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if sym in symbols:
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print "Adding " + sym + " from " + imgpath + " to " + asmfile + " in physical"
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asm.write(asmcontent % (sym, sym, sym, addr))
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asm.close()
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kf.close()
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cmd = "rm -rf " + symfile
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os.system(cmd)
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if __name__ == "__main__":
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ksym_to_lds()
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