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| 1 | +#!/bin/sh |
| 2 | +# Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| 3 | +# Use of this source code is governed by a BSD-style license that can be |
| 4 | +# found in the LICENSE file. |
| 5 | + |
| 6 | +# Reads etc/ld.so.conf and/or etc/ld.so.conf.d/*.conf and returns the |
| 7 | +# appropriate linker flags. |
| 8 | +# |
| 9 | +# sysroot_ld_path.sh /abspath/to/sysroot |
| 10 | +# |
| 11 | + |
| 12 | +log_error_and_exit() { |
| 13 | + echo $0: $@ |
| 14 | + exit 1 |
| 15 | +} |
| 16 | + |
| 17 | +process_entry() { |
| 18 | + if [ -z "$1" ] || [ -z "$2" ]; then |
| 19 | + log_error_and_exit "bad arguments to process_entry()" |
| 20 | + fi |
| 21 | + local root="$1" |
| 22 | + local localpath="$2" |
| 23 | + |
| 24 | + echo $localpath | grep -qs '^/' |
| 25 | + if [ $? -ne 0 ]; then |
| 26 | + log_error_and_exit $localpath does not start with / |
| 27 | + fi |
| 28 | + local entry="$root$localpath" |
| 29 | + echo -L$entry |
| 30 | + echo -Wl,-rpath-link=$entry |
| 31 | +} |
| 32 | + |
| 33 | +process_ld_so_conf() { |
| 34 | + if [ -z "$1" ] || [ -z "$2" ]; then |
| 35 | + log_error_and_exit "bad arguments to process_ld_so_conf()" |
| 36 | + fi |
| 37 | + local root="$1" |
| 38 | + local ld_so_conf="$2" |
| 39 | + |
| 40 | + # ld.so.conf may include relative include paths. pushd is a bashism. |
| 41 | + local saved_pwd=$(pwd) |
| 42 | + cd $(dirname "$ld_so_conf") |
| 43 | + |
| 44 | + cat "$ld_so_conf" | \ |
| 45 | + while read ENTRY; do |
| 46 | + echo "$ENTRY" | grep -qs ^include |
| 47 | + if [ $? -eq 0 ]; then |
| 48 | + local included_files=$(echo "$ENTRY" | sed 's/^include //') |
| 49 | + echo "$included_files" | grep -qs ^/ |
| 50 | + if [ $? -eq 0 ]; then |
| 51 | + if ls $root$included_files >/dev/null 2>&1 ; then |
| 52 | + for inc_file in $root$included_files; do |
| 53 | + process_ld_so_conf "$root" "$inc_file" |
| 54 | + done |
| 55 | + fi |
| 56 | + else |
| 57 | + if ls $(pwd)/$included_files >/dev/null 2>&1 ; then |
| 58 | + for inc_file in $(pwd)/$included_files; do |
| 59 | + process_ld_so_conf "$root" "$inc_file" |
| 60 | + done |
| 61 | + fi |
| 62 | + fi |
| 63 | + continue |
| 64 | + fi |
| 65 | + |
| 66 | + echo "$ENTRY" | grep -qs ^/ |
| 67 | + if [ $? -eq 0 ]; then |
| 68 | + process_entry "$root" "$ENTRY" |
| 69 | + fi |
| 70 | + done |
| 71 | + |
| 72 | + # popd is a bashism |
| 73 | + cd "$saved_pwd" |
| 74 | +} |
| 75 | + |
| 76 | +# Main |
| 77 | + |
| 78 | +if [ $# -ne 1 ]; then |
| 79 | + echo Usage $0 /abspath/to/sysroot |
| 80 | + exit 1 |
| 81 | +fi |
| 82 | + |
| 83 | +echo $1 | grep -qs ' ' |
| 84 | +if [ $? -eq 0 ]; then |
| 85 | + log_error_and_exit $1 contains whitespace. |
| 86 | +fi |
| 87 | + |
| 88 | +LD_SO_CONF="$1/etc/ld.so.conf" |
| 89 | +LD_SO_CONF_D="$1/etc/ld.so.conf.d" |
| 90 | + |
| 91 | +if [ -e "$LD_SO_CONF" ]; then |
| 92 | + process_ld_so_conf "$1" "$LD_SO_CONF" | xargs echo |
| 93 | +elif [ -e "$LD_SO_CONF_D" ]; then |
| 94 | + find "$LD_SO_CONF_D" -maxdepth 1 -name '*.conf' -print -quit > /dev/null |
| 95 | + if [ $? -eq 0 ]; then |
| 96 | + for entry in $LD_SO_CONF_D/*.conf; do |
| 97 | + process_ld_so_conf "$1" "$entry" |
| 98 | + done | xargs echo |
| 99 | + fi |
| 100 | +fi |
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