1#!/bin/sh 2 3# This script is needed in the process of generating exported 4# symbols list out of map files on Mac OS X (see also #i69351#) 5# The magic generating the regular expression from the temporary 6# mapfile containing only star and question mark symbols 7# 8# The script has to be called as follows: 9# nm -gx <file>.o | addsym-macosx.sh <file-with-wildcard-symbols> <temporary-file-where-to-write-the-search-expression-to> 10# See tg_shl.mk for an example of how to use the script 11# 12# Replace every * with .* and every ? with . to get awk expression 13# Put ^ at the beginning of every expression 14# Put $ at the beginning of every expression 15# Connect them all on one line, separated by | 16# Remove | at the end of this regular expression because the last end 17# of line was also replaced by | 18 19cat $1 | sed 's#*#.*#g 20s#?#.#g 21s#^#^# 22s#$#$#' | tr '\n' '|' | sed "s#|\$##" >$2 23 24# Please note that the awk expression expects to get the output of 'nm -gx'! 25# On Panther we have to filter out symbols with a value "1f" otherwise external 26# symbols will erroneously be added to the generated export symbols list file. 27awk -v SYMBOLSREGEXP="`cat $2`" ' 28match ($6,SYMBOLSREGEXP) > 0 && $6 !~ /_GLOBAL_/ { if (($2 != 1) && ( $2 != "1f" ) ) print $6 }' 29 30