11da177e4SLinus Torvalds#!/bin/sh -x 21da177e4SLinus Torvalds# Based on the vmlinux file create the System.map file 31da177e4SLinus Torvalds# System.map is used by module-init tools and some debugging 4943ffb58SAdrian Bunk# tools to retrieve the actual addresses of symbols in the kernel. 51da177e4SLinus Torvalds# 61da177e4SLinus Torvalds# Usage 7*ca09bf48SMasahiro Yamada# mksysmap vmlinux System.map [exclude] 81da177e4SLinus Torvalds 91da177e4SLinus Torvalds 101da177e4SLinus Torvalds##### 111da177e4SLinus Torvalds# Generate System.map (actual filename passed as second argument) 12e9f76363SMasahiro Yamada# The following refers to the symbol type as per nm(1). 131da177e4SLinus Torvalds 141da177e4SLinus Torvalds# readprofile starts reading symbols when _stext is found, and 151da177e4SLinus Torvalds# continue until it finds a symbol which is not either of 'T', 't', 16c1346169SMasahiro Yamada# 'W' or 'w'. 17c1346169SMasahiro Yamada# 18a2833d1bSMasahiro Yamada 19c4802044SMasahiro Yamada${NM} -n ${1} | sed >${2} -e " 20c4802044SMasahiro Yamada# --------------------------------------------------------------------------- 21c4802044SMasahiro Yamada# Ignored symbol types 22c4802044SMasahiro Yamada# 23c4802044SMasahiro Yamada 24c4802044SMasahiro Yamada# a: local absolute symbols 25c4802044SMasahiro Yamada# N: debugging symbols 26c4802044SMasahiro Yamada# U: undefined global symbols 27c4802044SMasahiro Yamada# w: local weak symbols 28c4802044SMasahiro Yamada/ [aNUw] /d 29c4802044SMasahiro Yamada 30c4802044SMasahiro Yamada# --------------------------------------------------------------------------- 31c4802044SMasahiro Yamada# Ignored prefixes 32c4802044SMasahiro Yamada# (do not forget a space before each pattern) 33c4802044SMasahiro Yamada 34c4802044SMasahiro Yamada# local symbols for ARM, MIPS, etc. 35c4802044SMasahiro Yamada/ \$/d 36c4802044SMasahiro Yamada 37c4802044SMasahiro Yamada# local labels, .LBB, .Ltmpxxx, .L__unnamed_xx, .LASANPC, etc. 38c4802044SMasahiro Yamada/ \.L/d 39c4802044SMasahiro Yamada 40c4802044SMasahiro Yamada# CRC from modversions 41c4802044SMasahiro Yamada/ __crc_/d 42c4802044SMasahiro Yamada 43c4802044SMasahiro Yamada# EXPORT_SYMBOL (symbol name) 44c4802044SMasahiro Yamada/ __kstrtab_/d 45c4802044SMasahiro Yamada 46c4802044SMasahiro Yamada# EXPORT_SYMBOL (namespace) 47c4802044SMasahiro Yamada/ __kstrtabns_/d 48c4802044SMasahiro Yamada 49c4802044SMasahiro Yamada# --------------------------------------------------------------------------- 50c4802044SMasahiro Yamada# Ignored symbols (exact match) 51c4802044SMasahiro Yamada# (do not forget a space before and '$' after each pattern) 52c4802044SMasahiro Yamada 53c4802044SMasahiro Yamada# for LoongArch? 54c4802044SMasahiro Yamada/ L0$/d 55*ca09bf48SMasahiro Yamada 56*ca09bf48SMasahiro Yamada# --------------------------------------------------------------------------- 57*ca09bf48SMasahiro Yamada# Ignored kallsyms symbols 58*ca09bf48SMasahiro Yamada# 59*ca09bf48SMasahiro Yamada# If the 3rd parameter exists, symbols from it will be omitted from the output. 60*ca09bf48SMasahiro Yamada# This makes kallsyms have the identical symbol lists in the step 1 and 2. 61*ca09bf48SMasahiro Yamada# Without this, the step2 would get new symbols generated by scripts/kallsyms.c 62*ca09bf48SMasahiro Yamada# when CONFIG_KALLSYMS_ALL is enabled. That might require one more pass. 63*ca09bf48SMasahiro Yamada$(if [ $# -ge 3 ]; then ${NM} ${3} | sed -n '/ U /!s:.* \([^ ]*\)$:/ \1$/d:p'; fi) 64c4802044SMasahiro Yamada" 65