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b18b047002
The previous commit removed the subshell execution from scripts/mksysmap, which is now simple enough to become a sed script. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
88 lines
2 KiB
Sed
Executable file
88 lines
2 KiB
Sed
Executable file
#!/bin/sed -f
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# SPDX-License-Identifier: GPL-2.0-only
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#
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# sed script to filter out symbols that are not needed for System.map,
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# or not suitable for kallsyms. The input should be 'nm -n <file>'.
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#
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# System.map is used by module-init tools and some debugging
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# tools to retrieve the actual addresses of symbols in the kernel.
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#
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# readprofile starts reading symbols when _stext is found, and
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# continue until it finds a symbol which is not either of 'T', 't',
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# 'W' or 'w'.
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#
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# ---------------------------------------------------------------------------
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# Ignored symbol types
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#
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# a: local absolute symbols
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# N: debugging symbols
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# U: undefined global symbols
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# w: local weak symbols
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/ [aNUw] /d
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# ---------------------------------------------------------------------------
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# Ignored prefixes
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# (do not forget a space before each pattern)
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# local symbols for ARM, MIPS, etc.
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/ \\$/d
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# local labels, .LBB, .Ltmpxxx, .L__unnamed_xx, .LASANPC, etc.
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/ \.L/d
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# arm64 EFI stub namespace
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/ __efistub_/d
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# arm64 local symbols in PIE namespace
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/ __pi_\\$/d
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/ __pi_\.L/d
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# arm64 local symbols in non-VHE KVM namespace
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/ __kvm_nvhe_\\$/d
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/ __kvm_nvhe_\.L/d
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# lld arm/aarch64/mips thunks
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/ __[[:alnum:]]*Thunk_/d
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# CFI type identifiers
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/ __kcfi_typeid_/d
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/ __kvm_nvhe___kcfi_typeid_/d
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/ __pi___kcfi_typeid_/d
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# CRC from modversions
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/ __crc_/d
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# EXPORT_SYMBOL (symbol name)
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/ __kstrtab_/d
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# EXPORT_SYMBOL (namespace)
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/ __kstrtabns_/d
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# ---------------------------------------------------------------------------
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# Ignored suffixes
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# (do not forget '$' after each pattern)
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# arm
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/_from_arm$/d
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/_from_thumb$/d
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/_veneer$/d
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# ---------------------------------------------------------------------------
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# Ignored symbols (exact match)
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# (do not forget a space before and '$' after each pattern)
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# for LoongArch?
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/ L0$/d
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# ppc
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/ _SDA_BASE_$/d
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/ _SDA2_BASE_$/d
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# ---------------------------------------------------------------------------
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# Ignored patterns
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# (symbols that contain the pattern are ignored)
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# ppc stub
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/\.long_branch\./d
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/\.plt_branch\./d
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