mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-23 02:54:32 +08:00
2ea038917b
This reverts commitad7a953c52. And commit: ("allow stripping of generated symbols under CONFIG_KALLSYMS_ALL")9bb482476cThese stripping patches has caused a set of issues: 1) People have reported compatibility issues with binutils due to lack of support for `--strip-unneeded-symbols' with objcopy 2.15.92.0.2 Reported by: Wenji 2) ccache and distcc no longer works as expeced Reported by: Ted, Roland, + others 3) The installed modules increased a lot in size Reported by: Ted, Davej + others Reported-by: Wenji Huang <wenji.huang@oracle.com> Reported-by: "Theodore Ts'o" <tytso@mit.edu> Reported-by: Dave Jones <davej@redhat.com> Reported-by: Roland McGrath <roland@redhat.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
46 lines
1.3 KiB
Bash
46 lines
1.3 KiB
Bash
#!/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
|
|
# 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 '\( [aNUw] \)\|\(__crc_\)\|\( \$[adt]\)' > $2
|
|
|