2 # Based on the vmlinux file create the System.map file
3 # System.map is used by module-init tools and some debugging
4 # tools to retrieve the actual addresses of symbols in the kernel.
7 # mksysmap vmlinux System.map [exclude]
11 # Generate System.map (actual filename passed as second argument)
12 # The following refers to the symbol type as per nm(1).
14 # readprofile starts reading symbols when _stext is found, and
15 # continue until it finds a symbol which is not either of 'T', 't',
19 ${NM} -n ${1} | sed >${2} -e "
20 # ---------------------------------------------------------------------------
21 # Ignored symbol types
24 # a: local absolute symbols
25 # N: debugging symbols
26 # U: undefined global symbols
27 # w: local weak symbols
30 # ---------------------------------------------------------------------------
32 # (do not forget a space before each pattern)
34 # local symbols for ARM, MIPS, etc.
37 # local labels, .LBB, .Ltmpxxx, .L__unnamed_xx, .LASANPC, etc.
40 # arm64 EFI stub namespace
43 # arm64 local symbols in PIE namespace
47 # arm64 local symbols in non-VHE KVM namespace
52 / __AArch64ADRPThunk_/d
55 / __ARMV5PILongThunk_/d
56 / __ARMV7PILongThunk_/d
57 / __ThumbV7PILongThunk_/d
63 # CFI type identifiers
65 / __kvm_nvhe___kcfi_typeid_/d
66 / __pi___kcfi_typeid_/d
68 # CRC from modversions
71 # EXPORT_SYMBOL (symbol name)
74 # EXPORT_SYMBOL (namespace)
77 # ---------------------------------------------------------------------------
79 # (do not forget '$' after each pattern)
86 # ---------------------------------------------------------------------------
87 # Ignored symbols (exact match)
88 # (do not forget a space before and '$' after each pattern)
97 # ---------------------------------------------------------------------------
99 # (symbols that contain the pattern are ignored)
105 # ---------------------------------------------------------------------------
106 # Ignored kallsyms symbols
108 # If the 3rd parameter exists, symbols from it will be omitted from the output.
109 # This makes kallsyms have the identical symbol lists in the step 1 and 2.
110 # Without this, the step2 would get new symbols generated by scripts/kallsyms.c
111 # when CONFIG_KALLSYMS_ALL is enabled. That might require one more pass.
112 $(if [ $# -ge 3 ]; then ${NM} ${3} | sed -n '/ U /!s:.* \([^ ]*\)$:/ \1$/d:p'; fi)