Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

#!/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 = Comon 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

#   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 '\( [aUw] \)\|\(__crc_\)\|\( \$[adt]\)' > $2