42 lines
1.2 KiB
Python
42 lines
1.2 KiB
Python
# -*- coding: UTF-8 -*-
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import os
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def extract_line(fname, pattern):
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with open(fname, "r") as f:
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lines = f.readlines()
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f.close()
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with open("entry_point.S", "w") as f:
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counter=0
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f.write(".section \".text.entrypoint\"\n")
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f.write(".globl system_vectors\n")
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f.write("\n")
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f.write("ma35d1_start:\n")
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for line in lines:
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if pattern in line:
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new_line = " .word 0x" + line[6:14] + "\n"
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f.write(new_line)
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counter = counter+1
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f.write("\n")
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f.write(".L__aarch32_code:\n")
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f.write("\n")
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# Append NOP to align vector table.
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counter = (counter+5)*4
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counter_align = (counter+32-1) & ~(32-1)
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nop_num = (counter_align - counter) / 4
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print hex(counter), hex(counter_align), nop_num
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j = 0
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while j < nop_num:
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f.write(" nop\n")
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j += 1
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f.write(" ldr r0, =ma35d1_start\n")
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f.write(" mov sp, r0\n")
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f.write(" ldr pc, =system_vectors\n")
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f.close()
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def formatfiles():
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extract_line("preload.txt", ":\t")
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if __name__ == '__main__':
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formatfiles()
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