From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 12:05:51 +0200 Subject: Adding upstream version 5.10.209. Signed-off-by: Daniel Baumann --- scripts/mksysmap | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100755 scripts/mksysmap (limited to 'scripts/mksysmap') diff --git a/scripts/mksysmap b/scripts/mksysmap new file mode 100755 index 000000000..ad8bbc522 --- /dev/null +++ b/scripts/mksysmap @@ -0,0 +1,44 @@ +#!/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 -- cgit v1.2.3