| #!/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 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 | 
 |  | 
 | # --------------------------------------------------------------------------- | 
 | # 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) | 
 | " |