linux/scripts/makelst
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   1#!/bin/sh
   2# SPDX-License-Identifier: GPL-2.0
   3# A script to dump mixed source code & assembly
   4# with correct relocations from System.map
   5# Requires the following lines in makefile:
   6#%.lst: %.c
   7#       $(CC) $(c_flags) -g -c -o $*.o $< &&
   8#       $(srctree)/scripts/makelst $*.o System.map $(OBJDUMP) > $@
   9#
  10# Copyright (C) 2000 IBM Corporation
  11# Author(s): DJ Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
  12#            William Stearns <wstearns@pobox.com>
  13#
  14
  15# awk style field access
  16field() {
  17  shift $1 ; echo $1
  18}
  19
  20t1=`$3 --syms $1 | grep .text | grep -m1 " F "`
  21if [ -n "$t1" ]; then
  22  t2=`field 6 $t1`
  23  if [ ! -r $2 ]; then
  24    echo "No System.map" >&2
  25  else
  26    t3=`grep $t2 $2`
  27    t4=`field 1 $t3`
  28    t5=`field 1 $t1`
  29    t6=`printf "%lu" $((0x$t4 - 0x$t5))`
  30  fi
  31fi
  32$3 -r --source --adjust-vma=${t6:-0} $1
  33