Revert "ANDROID: GKI: Add script to generate symbol protection headers"

Bug: 393366754
Change-Id: Ie426f398ff76c1221afc87de68f9ecdb71f15eb7
Signed-off-by: Sid Nayyar <sidnayyar@google.com>

scripts/gen_gki_modules_headers.sh

@@ -1,123 +0,0 @@
-#!/bin/bash
-# SPDX-License-Identifier: GPL-2.0-only
-#
-# Copyright 2022 Google LLC
-# Author: ramjiyani@google.com (Ramji Jiyani)
-#
-
-#
-# Generates header file with list of unprotected symbols
-#
-# Called By: KERNEL_SRC/kernel/Makefile if CONFIG_MODULE_SIG_PROTECT=y
-#
-# gki_module_unprotected.h: Symbols allowed to _access_ by unsigned modules
-#
-# If valid symbol file doesn't exists then still generates valid C header files for
-# compilation to proceed with no symbols to protect
-#
-
-# Collect arguments from Makefile
-TARGET=$1
-SRCTREE=$2
-SYMBOL_LIST=$3
-
-set -e
-
-#
-# Common Definitions
-#
-# Use "make V=1" to debug this script.
-case "$KBUILD_VERBOSE" in
-*1*)
-	set -x
-	;;
-esac
-
-#
-# generate_header():
-# Args: $1 = Name of the header file
-#       $2 = Input symbol list
-#       $3 = Symbol type ("unprotected")
-#
-generate_header() {
-	local header_file=$1
-	local symbol_file=$2
-	local symbol_type=$3
-
-	if [ -f "${header_file}" ]; then
-		rm -f -- "${header_file}"
-	fi
-
-	# If symbol_file exist preprocess it and find maximum name length
-	if [  -s "${symbol_file}" ]; then
-		# Remove any trailing CR, leading / trailing whitespace,
-		# line comments, empty lines and symbol list markers.
-		sed -i '
-			s/\r$//
-			s/^[[:space:]]*//
-			s/[[:space:]]*$//
-			/^#/d
-			/^$/d
-			/^\[abi_symbol_list\]$/d
-		' "${symbol_file}"
-
-		# Sort in byte order for kernel binary search at runtime
-		LC_ALL=C sort -u -o "${symbol_file}" "${symbol_file}"
-
-		# Trim white spaces & +1 for null termination
-		local max_name_len=$(awk '
-				{
-					$1=$1;
-					if ( length > L ) {
-						L=length
-					}
-				} END { print ++L }' "${symbol_file}")
-	else
-		# Set to 1 to generate valid C header file
-		local max_name_len=1
-	fi
-
-	# Header generation
-	cat > "${header_file}" <<- EOT
-	/*
-	 * DO NOT EDIT
-	 *
-	 * Build generated header file with ${symbol_type}
-	 */
-
-	#define NR_$(printf ${symbol_type} | tr [:lower:] [:upper:])_SYMBOLS \\
-	$(printf '\t')(ARRAY_SIZE(gki_${symbol_type}_symbols))
-	#define MAX_$(printf ${symbol_type} | tr [:lower:] [:upper:])_NAME_LEN (${max_name_len})
-
-	static const char gki_${symbol_type}_symbols[][MAX_$(printf ${symbol_type} |
-							tr [:lower:] [:upper:])_NAME_LEN] = {
-	EOT
-
-	# If a valid symbol_file present add symbols in an array except the 1st line
-	if [  -s "${symbol_file}" ]; then
-		sed -e 's/^[ \t]*/\t"/;s/[ \t]*$/",/' "${symbol_file}" >> "${header_file}"
-	fi
-
-	# Terminate the file
-	echo "};" >> "${header_file}"
-}
-
-if [ "$(basename "${TARGET}")" = "gki_module_unprotected.h" ]; then
-	# Union of vendor symbol lists
-	GKI_VENDOR_SYMBOLS="${SYMBOL_LIST}"
-	generate_header "${TARGET}" "${GKI_VENDOR_SYMBOLS}" "unprotected"
-else
-	# Sorted list of exported symbols
-	GKI_EXPORTED_SYMBOLS="include/config/abi_gki_protected_exports"
-
-	if [ -z "${SYMBOL_LIST}" ]; then
-		# Create empty list if ARCH doesn't have protected exports
-		touch "${GKI_EXPORTED_SYMBOLS}"
-	else
-		# Make a temp copy to avoid changing source during pre-processing
-		cp -f "${SYMBOL_LIST}" "${GKI_EXPORTED_SYMBOLS}"
-	fi
-
-	generate_header "${TARGET}" "${GKI_EXPORTED_SYMBOLS}" "protected_exports"
-fi
-