68 lines
1.6 KiB
Bash
68 lines
1.6 KiB
Bash
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#!/bin/sh
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# Based on the relocatable vmlinux file and offset create the
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# new vmlinux and System.map file. New vmlinux and System.map is
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# intend to be used by debugging tools to retrieve the actual
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# addresses of symbols in the kernel.
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#
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# Usage
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# mksysmap vmlinux-old offset
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# Author : Jia Ma (jia.ma@samsung.com)
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# Created on : 21 Sep 2015
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# Copyright (c) Samsung Electronics 2015
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if test $# -ne 2; then
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echo "Usage: $0 vmlinux offset"
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exit 1
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fi
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vmlinux=$1
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offset=$2
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if [[ -z "$offset" || -z "$vmlinux" ]]; then
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echo "$0 : variable not set"
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exit 1
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fi
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if [[ ! -f $vmlinux ]]; then
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echo "$vmlinux file not exist!"
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exit 1
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fi
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ARM_TOOLCHAIN=/home/jiama/SRA_DPI_TASK_MSM8996_LUCKYQLTE-JIAMA/android/prebuilts/gcc/linux-x86/aarch64/aarch64-linux-android-4.9/bin/aarch64-linux-android
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NM=$ARM_TOOLCHAIN-nm
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OBJCOPY=$ARM_TOOLCHAIN-objcopy
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if [[ -z "$ARM_TOOLCHAIN" ]]; then
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echo "Please specify ARM toolchain"
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exit 1
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fi
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echo "+Patching System.map --> System.map.patched"
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### generate runtime System.map file ###
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$OBJCOPY --adjust-vma $offset $vmlinux vmlinux.tmp 2>/dev/null
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$NM -n vmlinux.tmp | grep -v '\( [aNUw] \)\|\(__crc_\)\|\( \$[adt]\)' > System.map.patched
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rm -f vmlinux.tmp
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echo "+Patching $vmlinux -->vmlinux.patched"
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# following simply change the vmlinux from DYN type to EXEC type
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# to avoid the JTag load the dyn symbol into the system: e.g. there will be 2 start_kernel in the JTag symbol list, 1 from SYMBOL table, 1 from RELO section
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if [[ ! -f "elfedit" ]]; then
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echo "Can find elfedit"
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exit 1
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fi
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cp vmlinux vmlinux.patched
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elfedit --output-type exec vmlinux.patched
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echo "+Done"
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