From f6112ec27a8f0eee6c5a996f65c7bfd9457d9f85 Mon Sep 17 00:00:00 2001
From: Oleg Verych <olecom@flower.upol.cz>
Date: Tue, 6 Feb 2007 02:18:20 +0100
Subject: [PATCH] kbuild scripts: replace gawk, head, bc with shell, update

  Replacing overhead of using some (external) programs
  instead of good old `sh'.

Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: William Stearns <wstearns@pobox.com>
Cc: Martin Schlemmer <azarah@nosferatu.za.org>
Signed-off-by: Oleg Verych <olecom@flower.upol.cz>
Acked-by: Mark Lord <lkml@rtr.ca>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/makelst | 34 +++++++++++++++++-----------------
 1 file changed, 17 insertions(+), 17 deletions(-)

(limited to 'scripts/makelst')

diff --git a/scripts/makelst b/scripts/makelst
index 34bd72391238..4fc80f2b7e19 100755
--- a/scripts/makelst
+++ b/scripts/makelst
@@ -1,31 +1,31 @@
-#!/bin/bash
+#!/bin/sh
 # A script to dump mixed source code & assembly
 # with correct relocations from System.map
-# Requires the following lines in Rules.make.
-# Author(s): DJ Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com) 
-#            William Stearns <wstearns@pobox.com>
+# Requires the following lines in makefile:
 #%.lst: %.c
 #	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(CFLAGS_$@) -g -c -o $*.o $<
-#	$(TOPDIR)/scripts/makelst $*.o $(TOPDIR)/System.map $(OBJDUMP)
+#	$(srctree)/scripts/makelst $*.o $(objtree)/System.map $(OBJDUMP)
 #
-#    Copyright (C) 2000 IBM Corporation
-#    Author(s): DJ Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com) 
+# Copyright (C) 2000 IBM Corporation
+# Author(s): DJ Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
+#            William Stearns <wstearns@pobox.com>
 #
 
-t1=`$3 --syms $1 | grep .text | grep " F " | head -n 1`
+# awk style field access
+field() {
+  shift $1 ; echo $1
+}
+
+t1=`$3 --syms $1 | grep .text | grep -m1 " F "`
 if [ -n "$t1" ]; then
-  t2=`echo $t1 | gawk '{ print $6 }'`
+  t2=`field 6 $t1`
   if [ ! -r $2 ]; then
     echo "No System.map" >&2
-    t7=0
   else
     t3=`grep $t2 $2`
-    t4=`echo $t3 | gawk '{ print $1 }'`
-    t5=`echo $t1 | gawk '{ print $1 }'`
-    t6=`echo $t4 - $t5 | tr a-f A-F`
-    t7=`( echo  ibase=16 ; echo $t6 ) | bc`
+    t4=`field 1 $t3`
+    t5=`field 1 $t1`
+    t6=`printf "%lu" $((0x$t4 - 0x$t5))`
   fi
-else
-  t7=0
 fi
-$3 -r --source --adjust-vma=$t7 $1
+$3 -r --source --adjust-vma=${t6:-0} $1
-- 
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