| #!/bin/sed -f |
| # SPDX-License-Identifier: GPL-2.0-only |
| # |
| # sed script to filter out symbols that are not needed for System.map, |
| # or not suitable for kallsyms. The input should be 'nm -n <file>'. |
| # |
| # System.map is used by module-init tools and some debugging |
| # tools to retrieve the actual addresses of symbols in the kernel. |
| # |
| # readprofile starts reading symbols when _stext is found, and |
| # continue until it finds a symbol which is not either of 'T', 't', |
| # 'W' or 'w'. |
| # |
| # --------------------------------------------------------------------------- |
| # Ignored symbol types |
| # |
| |
| # a: local absolute symbols |
| # N: debugging symbols |
| # U: undefined global symbols |
| # w: local weak symbols |
| / [aNUw] /d |
| |
| # --------------------------------------------------------------------------- |
| # Ignored prefixes |
| # (do not forget a space before each pattern) |
| |
| # local symbols for ARM, MIPS, etc. |
| / \\$/d |
| |
| # local labels, .LBB, .Ltmpxxx, .L__unnamed_xx, .LASANPC, etc. |
| / \.L/d |
| |
| # arm64 EFI stub namespace |
| / __efistub_/d |
| |
| # arm64 local symbols in PIE namespace |
| / __pi_\\$/d |
| / __pi_\.L/d |
| |
| # arm64 local symbols in non-VHE KVM namespace |
| / __kvm_nvhe_\\$/d |
| / __kvm_nvhe_\.L/d |
| |
| # lld arm/aarch64/mips thunks |
| / __[[:alnum:]]*Thunk_/d |
| |
| # CFI type identifiers |
| / __kcfi_typeid_/d |
| / __kvm_nvhe___kcfi_typeid_/d |
| / __pi___kcfi_typeid_/d |
| |
| # CRC from modversions |
| / __crc_/d |
| |
| # EXPORT_SYMBOL (symbol name) |
| / __kstrtab_/d |
| |
| # EXPORT_SYMBOL (namespace) |
| / __kstrtabns_/d |
| |
| # --------------------------------------------------------------------------- |
| # Ignored suffixes |
| # (do not forget '$' after each pattern) |
| |
| # arm |
| /_from_arm$/d |
| /_from_thumb$/d |
| /_veneer$/d |
| |
| # --------------------------------------------------------------------------- |
| # Ignored symbols (exact match) |
| # (do not forget a space before and '$' after each pattern) |
| |
| # for LoongArch? |
| / L0$/d |
| |
| # ppc |
| / _SDA_BASE_$/d |
| / _SDA2_BASE_$/d |
| |
| # --------------------------------------------------------------------------- |
| # Ignored patterns |
| # (symbols that contain the pattern are ignored) |
| |
| # ppc stub |
| /\.long_branch\./d |
| /\.plt_branch\./d |
