mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-26 12:34:41 +08:00
320e7c9d44
scripts/kallsyms.c maintains compiler-generated symbols, but we end up with something similar in scripts/mksysmap to avoid the "Inconsistent kallsyms data" error. For example, commitc17a253870("mksysmap: Fix the mismatch of 'L0' symbols in System.map"). They were separately maintained prior to commit94ff2f63d6("kbuild: reuse mksysmap output for kallsyms"). Now that scripts/kallsyms.c parses the output of scripts/mksysmap, it makes more sense to collect all the ignored patterns to mksysmap. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
108 lines
2.6 KiB
Bash
Executable File
108 lines
2.6 KiB
Bash
Executable File
#!/bin/sh -x
|
|
# Based on the vmlinux file create the System.map file
|
|
# System.map is used by module-init tools and some debugging
|
|
# tools to retrieve the actual addresses of symbols in the kernel.
|
|
#
|
|
# Usage
|
|
# mksysmap vmlinux System.map [exclude]
|
|
|
|
|
|
#####
|
|
# Generate System.map (actual filename passed as second argument)
|
|
# The following refers to the symbol type as per nm(1).
|
|
|
|
# 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'.
|
|
#
|
|
|
|
${NM} -n ${1} | sed >${2} -e "
|
|
# ---------------------------------------------------------------------------
|
|
# 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 non-VHE KVM namespace
|
|
/ __kvm_nvhe_\$/d
|
|
/ __kvm_nvhe_\.L/d
|
|
|
|
# arm64 lld
|
|
/ __AArch64ADRPThunk_/d
|
|
|
|
# arm lld
|
|
/ __ARMV5PILongThunk_/d
|
|
/ __ARMV7PILongThunk_/d
|
|
/ __ThumbV7PILongThunk_/d
|
|
|
|
# mips lld
|
|
/ __LA25Thunk_/d
|
|
/ __microLA25Thunk_/d
|
|
|
|
# CFI type identifiers
|
|
/ __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
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# Ignored kallsyms symbols
|
|
#
|
|
# If the 3rd parameter exists, symbols from it will be omitted from the output.
|
|
# This makes kallsyms have the identical symbol lists in the step 1 and 2.
|
|
# Without this, the step2 would get new symbols generated by scripts/kallsyms.c
|
|
# when CONFIG_KALLSYMS_ALL is enabled. That might require one more pass.
|
|
$(if [ $# -ge 3 ]; then ${NM} ${3} | sed -n '/ U /!s:.* \([^ ]*\)$:/ \1$/d:p'; fi)
|
|
"
|