#!/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###### Generate System.map (actual filename passed as second argument)# $NM produces the following output:# f0081e80 T alloc_vfsmnt# The second row specify the type of the symbol:# A = Absolute# B = Uninitialised data (.bss)# C = Common symbol# D = Initialised data# G = Initialised data for small objects# I = Indirect reference to another symbol# N = Debugging symbol# R = Read only# S = Uninitialised data for small objects# T = Text code symbol# U = Undefined symbol# V = Weak symbol# W = Weak symbol# Corresponding small letters are local symbols# For System.map filter away:# a - local absolute symbols# U - undefined global symbols# N - debugging symbols# w - local weak symbols# readprofile starts reading symbols when _stext is found, and# continue until it finds a symbol which is not either of 'T', 't',# 'W' or 'w'. __crc_ are 'A' and placed in the middle# so we just ignore them to let readprofile continue to work.# (At least sparc64 has __crc_ in the middle).$NM -n $1 | grep -v '\( [aNUw] \)\|\(__crc_\)\|\( \$[adt]\)\|\( \.L\)\|\( L0\)' > $2
#!/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
#####
# Generate System.map (actual filename passed as second argument)
# $NM produces the following output:
# f0081e80 T alloc_vfsmnt
# The second row specify the type of the symbol:
# A = Absolute
# B = Uninitialised data (.bss)
# C = Common symbol
# D = Initialised data
# G = Initialised data for small objects
# I = Indirect reference to another symbol
# N = Debugging symbol
# R = Read only
# S = Uninitialised data for small objects
# T = Text code symbol
# U = Undefined symbol
# V = Weak symbol
# W = Weak symbol
# Corresponding small letters are local symbols
# For System.map filter away:
# a - local absolute symbols
# U - undefined global symbols
# N - debugging symbols
# w - local weak symbols
# 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'. __crc_ are 'A' and placed in the middle
# so we just ignore them to let readprofile continue to work.
# (At least sparc64 has __crc_ in the middle).
$NM -n $1 | grep -v '\( [aNUw] \)\|\(__crc_\)\|\( \$[adt]\)\|\( \.L\)\|\( L0\)' > $2