1#!/bin/sh 2# Writes out all of the exported symbols to a file. 3# This is needed on AIX as symbols are not exported 4# by an executable by default and need to be listed 5# specifically for export so that they can be used 6# by native add-ons. 7# 8# The raw symbol data is obtained by using nm on 9# the .a files which make up the node executable. 10# 11# -Xany processes symbols for both 32-bit and 12# 64-bit (the default is for 32-bit only). 13# 14# -g selects only exported symbols. 15# 16# -C, -B and -p ensure that the output is in a 17# format that can be easily parsed and converted 18# into the required symbol. 19# 20# -C suppresses the demangling of C++ names. 21# -B writes the output in BSD format. 22# -p displays the info in a standard portable 23# output format. 24# 25# Only include symbols if they are of the following 26# types and don't start with a dot. 27# 28# T - Global text symbol. 29# D - Global data symbol. 30# B - Global bss symbol. 31# 32# The final sort allows removal of any duplicates. 33# 34# Symbols for the gtest libraries are excluded as 35# they are not linked into the node executable. 36# 37echo "Searching $1 to write out expfile to $2" 38 39# This special sequence must be at the start of the exp file. 40echo "#!." > "$2.tmp" 41 42# Pull the symbols from the .a files. 43find "$1" -name "*.a" | grep -v gtest \ 44 | xargs nm -Xany -BCpg \ 45 | awk '{ 46 if ((($2 == "T") || ($2 == "D") || ($2 == "B")) && 47 (substr($3,1,1) != ".")) { print $3 } 48 }' \ 49 | sort -u >> "$2.tmp" 50 51mv -f "$2.tmp" "$2" 52