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 7ca09bf48SMasahiro 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. 35ec336aa8SPierre-Clément Tosi/ \\$/d 36c4802044SMasahiro Yamada 37c4802044SMasahiro Yamada# local labels, .LBB, .Ltmpxxx, .L__unnamed_xx, .LASANPC, etc. 38c4802044SMasahiro Yamada/ \.L/d 39c4802044SMasahiro Yamada 40320e7c9dSMasahiro Yamada# arm64 EFI stub namespace 41320e7c9dSMasahiro Yamada/ __efistub_/d 42320e7c9dSMasahiro Yamada 43200dd957SPierre-Clément Tosi# arm64 local symbols in PIE namespace 44200dd957SPierre-Clément Tosi/ __pi_\\$/d 45200dd957SPierre-Clément Tosi/ __pi_\.L/d 46200dd957SPierre-Clément Tosi 47320e7c9dSMasahiro Yamada# arm64 local symbols in non-VHE KVM namespace 48ec336aa8SPierre-Clément Tosi/ __kvm_nvhe_\\$/d 49320e7c9dSMasahiro Yamada/ __kvm_nvhe_\.L/d 50320e7c9dSMasahiro Yamada 51*fa3866b6SArnd Bergmann# lld arm/aarch64/mips thunks 52*fa3866b6SArnd Bergmann/ __[[:alnum:]]*Thunk_/d 53320e7c9dSMasahiro Yamada 54320e7c9dSMasahiro Yamada# CFI type identifiers 55320e7c9dSMasahiro Yamada/ __kcfi_typeid_/d 5671025b85SPierre-Clément Tosi/ __kvm_nvhe___kcfi_typeid_/d 5771025b85SPierre-Clément Tosi/ __pi___kcfi_typeid_/d 58320e7c9dSMasahiro Yamada 59c4802044SMasahiro Yamada# CRC from modversions 60c4802044SMasahiro Yamada/ __crc_/d 61c4802044SMasahiro Yamada 62c4802044SMasahiro Yamada# EXPORT_SYMBOL (symbol name) 63c4802044SMasahiro Yamada/ __kstrtab_/d 64c4802044SMasahiro Yamada 65c4802044SMasahiro Yamada# EXPORT_SYMBOL (namespace) 66c4802044SMasahiro Yamada/ __kstrtabns_/d 67c4802044SMasahiro Yamada 68c4802044SMasahiro Yamada# --------------------------------------------------------------------------- 69320e7c9dSMasahiro Yamada# Ignored suffixes 70320e7c9dSMasahiro Yamada# (do not forget '$' after each pattern) 71320e7c9dSMasahiro Yamada 72320e7c9dSMasahiro Yamada# arm 73320e7c9dSMasahiro Yamada/_from_arm$/d 74320e7c9dSMasahiro Yamada/_from_thumb$/d 75320e7c9dSMasahiro Yamada/_veneer$/d 76320e7c9dSMasahiro Yamada 77320e7c9dSMasahiro Yamada# --------------------------------------------------------------------------- 78c4802044SMasahiro Yamada# Ignored symbols (exact match) 79c4802044SMasahiro Yamada# (do not forget a space before and '$' after each pattern) 80c4802044SMasahiro Yamada 81c4802044SMasahiro Yamada# for LoongArch? 82c4802044SMasahiro Yamada/ L0$/d 83ca09bf48SMasahiro Yamada 84320e7c9dSMasahiro Yamada# ppc 85320e7c9dSMasahiro Yamada/ _SDA_BASE_$/d 86320e7c9dSMasahiro Yamada/ _SDA2_BASE_$/d 87320e7c9dSMasahiro Yamada 88320e7c9dSMasahiro Yamada# --------------------------------------------------------------------------- 89320e7c9dSMasahiro Yamada# Ignored patterns 90320e7c9dSMasahiro Yamada# (symbols that contain the pattern are ignored) 91320e7c9dSMasahiro Yamada 92320e7c9dSMasahiro Yamada# ppc stub 93320e7c9dSMasahiro Yamada/\.long_branch\./d 94320e7c9dSMasahiro Yamada/\.plt_branch\./d 95320e7c9dSMasahiro Yamada 96ca09bf48SMasahiro Yamada# --------------------------------------------------------------------------- 97ca09bf48SMasahiro Yamada# Ignored kallsyms symbols 98ca09bf48SMasahiro Yamada# 99ca09bf48SMasahiro Yamada# If the 3rd parameter exists, symbols from it will be omitted from the output. 100ca09bf48SMasahiro Yamada# This makes kallsyms have the identical symbol lists in the step 1 and 2. 101ca09bf48SMasahiro Yamada# Without this, the step2 would get new symbols generated by scripts/kallsyms.c 102ca09bf48SMasahiro Yamada# when CONFIG_KALLSYMS_ALL is enabled. That might require one more pass. 103ca09bf48SMasahiro Yamada$(if [ $# -ge 3 ]; then ${NM} ${3} | sed -n '/ U /!s:.* \([^ ]*\)$:/ \1$/d:p'; fi) 104c4802044SMasahiro Yamada" 105