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#!/usr/bin/awk -f
# Copyright (c) 2023 TK Chia
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
# Script to patch the GNU linker scripts for PE/i386 and PE/x86-64 to allow
# the starting RVA of the .text section to be customized.
BEGIN {
print "/****** AUTOMATICALLY PATCHED ******/"
}
/^ *\.text *__image_base__ \+ .* : *$/ && ! /__base_of_code__/ {
slack_def = $0
sub (/^ *\.text */, " __lfanew_slack_base = ", slack_def)
sub (/: *$/, ";", slack_def)
print slack_def
print " __base_of_code__ = DEFINED (__base_of_code__)"
print " ? __base_of_code__ : __lfanew_slack_base;"
print " __base_of_code__ = ALIGN (__base_of_code__, __section_alignment__);"
print " .slack __lfanew_slack_base :"
print " {"
print " . += __image_base__ + __base_of_code__ - __lfanew_slack_base;"
print " }"
print " .text __image_base__ + __base_of_code__ :"
next
}
{
print
}
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